Home

WT1800 Precision Power Analyzer Features Guide

Contents

1. CTF H e 1E ERIS T A LU 15 1 C2x Position 152 C2x Trace 15 1 CAE EEA E rise ra sir eae ES URN PR PRLEESERTRONTRID ERR DERE RIEN 23 1 CalCUlatiOni ier ct rtr s c tee tete 4 4 5 2 capture corntrolsettirigs noouii eerie 16 5 capture count 16 4 Clear Trend EXQG tecti cient cadres serena 11 2 CONOR scsacngaiseseresscesctansnasesctaceadsacoscuasenseraasscancedseasarasens 19 1 22 6 Column INO 1 2 nera o e vc Ree siae 7 7 16 11 Column Num 7 7 16 11 Column m mb6f 2 5 drerit hen reet Crete deae 7 7 16 11 COMMIS ieee ND UELDL S 7 7 columns number OF ccccceeesseeeeeeeeesssteeeeeeeeeeseaee 7 7 16 11 col mn settings cn nocte te tacens rr Reus 7 7 comment COMPG sesh ek D continuous integration mode control settings corrected power correction value amplitude 10 4 fee niei analog auto range 4 3 5 1 GIeSUTACIOF iaceo o a n cac i EH analog range ssec cst etna he eR 4 8 5 1 CSV convert anti aliasing filler rct eet ettet teret 3 4 CT scaling apparent power and reactive power equation types 8 8 CrTratio apparent power equation MAECEN CUITENt auto TANGE sits maiden inion est 2 11 assignment method current mode for current integration sssssse 9 11 attenuation constant current range NLO c ecl CUPS OM RI TE auto
2. ssss 9 4 Independently Integrated Elements Element Object sem nascens 9 4 Starting Stopping and Resetting Integration Start Stop Reset see 9 5 Integration Conditions Integ Set cernere den tte ette duet in enable nnb ented 9 7 Integration Mode Mode re rer i e e e Er Eth eti Mp ee uen 9 7 Integration Timer Integ Timer 2 nine oraes edi eee centre inna o bee dE ERE 9 10 Scheduled Times for Real Time Integration Real time Control n se 9 10 Integration Auto Calibration On Off Auto Cal ssssssseeeennnenmee emen 9 11 Watt Hour Integration Method for Each Polarity WP x Type 9 11 Current Mode for Current Integration q Mode em mem 9 11 Rated Time of Integrated D A Output D A Output Rated Time Option ssessss 9 12 Waveform Display Waveform Display WAVE eeeecienenes entered ehtlee kso der Reb Leer Ae ERR eR dee no CR erste 10 1 Display Format FORM inre ter rer re ret e e a ete errat en pem t ppc 10 2 Number of Windows Foririat aiite eerte tnt ed teinte ertt eod Te haeo rh e ip cede tk p eR 10 2 TIMEAXIS TIME dIV 10 2 Vertical Axis Amplit de iniecit rre it erento tee ha anana date aaea ca aaa E aN Eaa 10 4 Trigger Trigger Settings strc seein ca ope shea vanes enint et eren rro Ro tma aea a fess a samt e
3. essssseeeee input signal type eroaten nes aindeon Ethernet communication iore integrated DOWOL arem pee a RR Ra event synchronized storage mode ss integration resetting w 9 6 event hamo uis rires Dar eee edt eot Lee are ee integration Staing sessir onec ora etie 9 5 EVeDUNOO onte n ipee iaa EE D EE ERES coc PIER integration SlOPPING i coacti erre rc e crece trii 9 5 event synchronization print mode integration synchronized storage mode 17 2 exponential average integration auto calibration 9 11 GXDFOSSIOD oreraa e DA ETERS integration mode ss a 9 7 external current sensor conversion ratio 2 13 integration synchronization print mode 20 2 external current sensor range sssssssseeene 2 12 integration TIGE s s evi cord reri neci eem Ca icc eaa 9 10 external current sensor range display format 2 14 Integ Set es 9 7 exterrial Sync iiiter 16 6 Integ Timer 9 10 EXTSENSOR ce 2 12 internal RAM disk 18 1 initerpolate osi eret Dec ste etai a e e pete dads F Page interval mee interval print mode Y EU in A 105 ITEM high speed data capturing 16 11 file name 18 4 file operations 18 6 ITEM numeri dala sa et ertet 7 4 fie recording salen aea cs eren ence ete eene 16 2 IEM trend ssis si
4. 11 2 waveform sampling data ssssssssssss 10 3 wave label rtt ttr eene 10 7 wave mapping 10 8 WVU PT TA n 2 1 WIKNO eene M M 2 1 wiring SVS Maione taia at ai enne 1 6 2 1 wiring system COMBINATION iseni 2 1 wiring unit WPG TIME icti n re te aee ete De de ipeo Yo 7 5 WR Ty Pei p 9 11 X Page X axis position esssssssssseeeseeeeeeenene 12 2 dcm 7 11 Y Page NAP OS bs 7 11 Z Page zero level compensation seesssseseenseese 23 1 IM WT1801 01EN Index 5
5. 4 7 Q Page Motor efficlelley 2 2 cett Ue Mee eases 4 9 rotor poles n rc on n er Red Per a aoe a 9 11 moving average sesssseseseeseeeenneere nnne ennt 2 21 R Page N Page SPRAIN o 18 1 GVA sacar I E E EE 8 4 Tange auxiliary input es 5 1 MOU ONY c 21 4 E motor evaluation ni He FACTO NENNEN 24 1 22 4 FASLEN eeseeeseeseeeeeceeeeeeeeeeeeceeeneeceeeeeectneseeccttnecenesseeesnnseceniaas network drive es cs 18 1 21 4 Rated Freq LOWE bs bue reda tn dsl t e Md 4 6 normal integration MODE vce rci ee certe 9 8 kaye p Upper e normal mode Tri 10 1 NEE OWED E j NULL ACAD EE ME 23 1 23 3 ated time of integrated D A output gale NULL SET FOOTER o ar naa E RAEE 4 5 NULL values 23 2 real time continuous integration mode 9 9 NULL status 232 real time Control sd numbering 18 4 real time normal integration mode ss 9 9 number of displayed items 17 4 18 3 bes a whence ME a numeric data display p 4 earume storage MOC sssrcasattcanderssasannaseestcantennsediseneeerestee z numeric data display turning on and off 13 2 real Bs dl P EEA EEEE e DA WES E 17 3 20 3 record to file O Page remote control 2 es croce sta reat to read 22 3 remote mode clearing ee 22 4 23 3 offset value auxiliary input s is 5 2 Reset k Pat eN enel 7 6 offset value
6. 18 1 user defined event name 8 6 user defined event NUMDET ccceceeeeceeeeeteeeeeeneeeeeeee 8 6 user defined events 8 6 user defined functions we 8 1 user defined event 8 6 USEF defined f riCtlon ceci ect rr comcs 8 1 ul scat EE E E E E aboard S 18 6 22 1 V Page valid measurement rageuse aE 2 16 var hours VECI Siiri VOCIOR GIS DIA ERE HE 13 1 vector display windows number of 13 2 vector Dumlber cre rrt erret rrr Pr ra RR 13 2 Index 4 IM WT1801 01EN Index VECON ZOOM T TET 13 2 vertical axis 10 4 vertical position 10 9 vertical Scal amp cree nee reme ri gerer 12 2 vertical scale type estie s teo qe atone 12 2 vertical zoom T volt ampere hours sessssssssssseeeeeeenneeeneeenn 9 1 voltage and current measurement modes 16 5 voltage aut range uicit crece ccn 2 10 voltage range ere en CR e eden 2 9 VT ratio ART I nto CUR 2 14 W Page watt hour integration method for each polarity 9 11 Wall NOUNS qe 9 1 waveform display a 10 1 waveform display data saving sessssssss 18 2 waveform display windows number of 10 2 waveform labels neni es 10 7 waveform mapping sisser sosa 10 8 waveforms methods for assigning to screens
7. no data so the judgment for Ev1 is FALSE Also if you set the judgment condition specification method to Condition and events that cannot be judged are included in the judgment conditions the judgment result is FALSE For example if you set the judgment condition of event Ev2 to NOT EV1 if the judgment for Ev1 is FALSE because of the reason given in the example above the result for Ev2 is not TRUE but FALSE Da o wa IM WT1801 01EN 8 7 8 Computation Apparent Power Reactive Power and Corrected Power Equations Formula Equation for Apparent Power S Formula You can select the voltage and current to use to compute the apparent power voltage x current from the following options Urms irms The product of the true rms values of the voltage and current Umean lmean The product of the voltage s and current s rectified mean values calibrated to the rms values Udc ldc The product of the simple averages of the voltage and current Umean lIrms The product of the voltage s rectified mean value calibrated to the rms value and the current s true rms value Urmean Irmean The product of the voltage s and current s rectified mean values Apparent Power and Reactive Power Computation Types S Q Formula There are three types of power active power reactive power and apparent power In general they are defined by the following equations Active power P Ulcos 1 Reactive power Q Ulsinb 2 Apparent power S
8. Cursor Movement In the Waveform Display Cursors move along the selected waveform The unit of cursor movement is the amount of time contained in one screen 800 Li If immeasurable data exists is displayed in the measured value display area AY can be measured even when the units of the cursors are different The measured result will not have a unit The range of the vertical axis that can be measured using cursors is within 300 when the crest factor is set to CF3 and within 600 when the crest factor is set to CF6 In the Trend Display Cursors move along the selected trend You can set the cursor position relative to the left edge of the screen in points with the left edge itself being 0 points and the right edge being 1601 points You can move through the displayed data one point at a time In the Bar Graph Display Two cursors and x are displayed in each graph Graph1 to Graph3 You can set the cursor positions as orders The bar graph display indicates what harmonic order each cursor is located in For example e The location of cursor 1 is indicated in this format Order 2 The location of cursor 2 x is indicated in this format Orderx 55 The orders indicating the locations of cursors 1 and 2 x are the same for each bar graph from 1 to 3 Li If immeasurable data exists is displayed in the measured value display area 15 4 IM WT1801 01EN 16 High S
9. On models with the harmonic measurement option or the simultaneous dual harmonic measurement option you can display harmonics using bar graphs The harmonic orders are lined up on the horizontal axis and the vertical axis represents the amplitude of each harmonic You can configure three different bar graphs Bar Graph Display Example The bar graph number measurement function element and upper limit of the displayed bar graph log Scale only appears when logarithmic coordinates are used Harmonic order range of the displayed bar graph fog Scale CT 9 li Mi The bar graph number measurement function element and lower limit of the displayed bar graph Li When logarithmic coordinates are used Log Scale if a value is negative its absolute value is displayed with a red bar graph Ifthe analysis window width number of cycles of the fundamental signal that is determined by the fundamental frequency is shorter than the data update interval bar graphs are not displayed Set a longer data update interval For details see Notes about the Numeric Data Display P Click here The bar graphs of harmonic orders that exceed the maximum measurable order are not displayed For information about the maximum measurable harmonic order see Maximum Harmonic Order to Be Measured Max Order gt Click here Display Format FORM Number of Bar Graph Display
10. Year Any four digit Gregorian calendar value Hour Minute Second 00 00 00 to 23 59 59 Now The scheduled printing start time is set to the current time Copy The scheduled printing start time is copied into the scheduled printing stop time Li You can set the day for the scheduled start or stop time in February to a value as high as the 31st day If you do so an error message will appear when you enable automatic printing Reset the scheduled start and stop times The WT1800 recognizes leap years when it executes automatic printing Trigger Event Trigger Event You can configure this setting when Print Mode is set to Event You can select an event from Event1 to Events Printing is executed whenever the user defined event specified here occurs Printing of the Data at Print Start Print At Start This setting is valid when Print Mode is set to Interval Real Time or Integ Sync Select whether to print the data at print start Comment Comment This is the same as the comment setting for saving and loading data P Click here Paper Feed Paper Feed Each time you press Paper Feed the paper roll is fed through by approximately 3 cm IM WT1801 01EN 20 3 20 Printing Screen Images and Numeric Data Option Print Timing for Different Print Modes The timings at which automatic printing can be executed are indicated below Interval Print Mode When the scheduled start time is before Auto Print ON
11. see 4 8 Motor Efficiency and Total Efficiency Computation 4 9 Auxiliary Input Conditions Option Auxiliary Input Conditions MOTOR AUX SET nennen nennen nnns 5 1 Input Signal Name Aux Name eene tret inneren tat etie node taa e Ete Ede aN 5 1 Scaling Factor Scallrig s 52 ueteri poe eret Rp pu euro FIERE chest Sepa aca aec resp ces teer koe pat uon 5 1 Onit 801 eer a es ee eed ec ete ee NE T 5 1 Analog I MPuUt oz Ine E 5 1 Linear Scaling of Analog Input aarti eels ce ei Abeta Seite 5 2 Line Filter Cine FINGH ETE TUE DILLO LLL 5 3 Holding Measured Values and Performing Single Measurements Holding Measured Values HOLD eese aaa nannten nante nan nitida 6 1 Single Measurement SINGLE entere aoken erret nne aaa kn tone ae Ext Ee aeia EEEa ai 6 1 Numeric Data Display Numeric Data Display NUMERIO sssssseseeeneennenen nene enm nennen enne nene 7 1 Display Format FORM 1 eniti a toy ERR Om bee sek eue e pe SEE eee teeta 7 1 Numeric Data Display Fottmal 5 iar reden eroi ee er eh xe tech Regn 7 1 Switching the Displayed Page PAGE UP PAGE DOWN sseeeem eem 7 3 Jumping to the First or Last Page PAGE TOP PAGE END seem 7 3 Number of Displayed Digits Display Resolution 7 4 Display Men NEM TREE 7 4 4 8 and 16 Value Displays 4 Items 8 Items 16ltems seseee 7 5 Matix display Mathi ec
12. Element1 to Element6 Use the soft keys to select an element and then set the element s CT ratio to a value within the following range 0 0001 to 99999 9999 Copying the CT Ratio Exec Copy 2 Copy the CT ratio of the selected input element to the other input elements in the same wiring unit 2 14 IM WT1801 01EN 2 Fundamental Measurement Conditions Power Coefficient SF Scaling scaling factor By setting the power coefficient SF you can display the measured active power apparent power and reactive power after they have been multiplied by a coefficient Measurement Function Data before Transformation Transformation Result Voltage U U2 secondary output of the VT U2xV V VT ratio Current l2 secondary output of the CT l2 xC C CT ratio Active power P P2 P2xVxCxSF SF Power coefficient Apparent power S S2 S2 x V x C x SF Reactive power Q Q2 Q2 x V x C x SF Max min voltage Upk Upke secondary output of the VT Upk2 x V Max min current Ipk Ipk2 secondary output of the CT Ipk2 x C Element1 to Element6 Use the soft keys to select an element and then set the element s power coefficient to a value within the following range 0 0001 to 99999 9999 Copying the Power Coefficient Exec Copy Copy the power coefficient of the selected input element to the other input elements in the same wiring unit Li If the value of the result of multiplying the measured value by the VT ratio CT ratio or power coefficien
13. I k IPHI Rs k RSK Rp k RPK Ihdf k IHDF Ithd ITHD Ithf ITHF Itif ITIF hcf HCF fPLL2 PLLFRQ2 U1 U3 PHIU1U3 U3 13 PHIU3I3 P P S S Q QA X LAMBDA PHI Pc PC P pk PPPK P pk PMPK Time TI WS SH WQ QH P k PK Mk LAMBDAK k PHIK Xs k XSK Xp k XPK Phdf k PHDF Pthd PTHD Kfactor KFACT QU1 11 PHIU111 8 2 IM WT1801 01EN 8 Computation Delta Computation Option AU1 DELTAU1 AI DELTAK AP4 DELTAP1 AU2 DELTAU2 AP2 DELTAP2 AU3 DELTAU3 AP3 DELTAP3 AUX DELTAUSIG APX DELTAPSIG AU1rms DELTAU1RMS AU1mean DELTAU1MN AU1rmean DELTAU1RMN AU2rms DELTAU2RMS AU2mean DELTAU2MN AU2rmean DELTAU2RMN AU3rms DELTAU3RMS AU3mean DELTAU3MN AU3rmean DELTAU3RMN AUZrms DELTAUSIGRMS AUXmean DELTAUSIGMN AUXrmean DELTAUSIGRMN AU1de DELTAU1DC AU1ac DELTAU1AC Alrms DELTALRMS AU2dc DELTAU2DC AU2ac DELTAU2AC Almean DELTAIMN AU3dc DELTAU3DC AU3ac DELTAU3AC Alrmean DELTAIRMN AUS dc DELTAUSIGDC AUXac DELTAUSIGAC Aldc DELTAIDC Alac DELTAIAC Motor Evaluation Option Speed SPEED Torque TORQUE Pm PM Slip SLIP SyncSp SYNC EaU EAU
14. Li All advanced trend display settings are shared with the advanced waveform display settings If you change the advanced settings in the trend display the advanced settings in the waveform display also change For example if you set the display of the scale values to OFF in the trend display the display of the scale values will also be set to OFF in the waveform display IM WT1801 01EN 11 Trend Display Display Item ITEM Turning Trend Displays On and Off Display The upper left of the list You can set whether to display All ON or hide All OFF all trends from trend 1 T1 to trend 16 T16 Trend Numbers T1 to T16 You can select whether to display each trend from trend 1 T1 to trend 16 T16 by selecting or clearing its check box Function Function You can select any of the measurement functions listed under Items That This Instrument Can Measure P Click here Element Element 2 You can select the element wiring unit from the options below The available options vary depending on the installed elements Element1 Element2 Element3 Element4 Element5 Element6 2A 2B and XC If there are no elements assigned to a selected wiring unit because the wiring unit has no data its trend is displayed at the top or bottom of the screen For example if elements are assigned to ZA but not to 2B the trends of measurement functions for 2B appear at the top or bottom of the screen Order Order option
15. The WT1800 does not support Daylight Savings Time To set the Daylight Savings Time reset the time difference from Greenwich Mean Time Date and time settings are backed up using the internal lithium battery They are retained even if the power is turned off The WT1800 has leap year information The Time Difference From GMT setting is shared with the same setting found in the SNTP settings in the Ethernet communication Network settings If you change this setting in the date and time settings the Time Difference From GMT in the Ethernet communication Network settings also changes IM WT1801 01EN 22 5 22 Utility Language Language Set the language that is used in the setup menus and messages Menu Language Menu Language You can choose to display menus using one of the following languages English Japanese Chinese German Message Language Message Language Error messages appear when errors occur You can choose to display these messages and the help using one of the following languages The error codes that accompany error messages are the same for all languages For details about error messages see appendix 6 in the getting started guide IM WT1801 03EN English Japanese Chinese German Li Evenif you set the menu or message language to a language other than English some terms will be displayed in English You can specify different menu and message languages However you
16. X Axis Position X Axis Position This setting is valid when you set the vertical scale mode to Manual and the vertical scale type to Linear You can set the point at which the Y axis coordinate is O to Bottom the bottom of the screen or Center the center of the screen 12 2 IM WT1801 01EN 13 Vector Display Option Vector Display OTHERS Vector On models with the harmonic measurement option or the simultaneous dual harmonic measurement option you can select a wiring unit to display vectors of the phase differences and amplitudes rms values of the fundamental signals U 1 and I 1 in each element in the unit The positive vertical axis is set to zero angle zero and the vector of each input signal is displayed Vector Display Example For a 3P3W system with a three voltage three current method U1 1 U2 1 and U3 1 are line voltages e 11 1 12 1 and I3 1 are line currents Size of the peripheral circle range 300 0 V 6 000A Wiring ZA 3P3W 3V3A PLLSrc U1 fPLL1 QUI U2 U1 U3 U1 1 10260 V M 1 3 5237 A P1 1 0 3562kW S1 1 0 3615kVA amp 1 1 0 0618kvar MW 0 9853 Ug 1 10145 V 1 3 5090 A P2 1 0 5542kW S2 1 0 6016kVA Q2 1 0 2342kvar A2 0 9211 U3 1 101 40N V 13 1 3 4990 X P3 1 0 2128kW S3 1 0 5997kVA Q3 1 0 5067kvar A3 1 0 3549 For a 3P4W three phase four wire For a 3P3W three phase three wire system system U1 1 U2 1 an
17. You can apply the signals of sensors such as luminance wind power or temperature sensors to the AUX1 and AUX2 connectors and display the physical values measured by the sensors You can configure the following auxiliary input settings Input signal name Aux Name Scaling factor Scaling Unit Unit Analog input range Linear scaling of analog input Line filter Line Filter Input Signal Name Aux Name Number of characters Up to eight Usable characters Spaces and all characters that are displayed on the keyboard Scaling Factor Scaling You can set the factor for scaling the auxiliary input Set the factor to a value from 0 0001 to 99999 9999 This setting is used as the scaling factor in the equation for the linear scaling of analog input Unit Unit This setting is the same as the input signal name Aux Name setting P Click here Analog Input Range Set the auxiliary input analog input range Turning Auto Range On and Off Analog Auto Range Select whether to turn auto range on or off When auto range is on the WT1800 automatically switches between the following ranges according to the size of the auxiliary input 20 V 10V 5 V 2 V 1 V 500 mV 200 mV 100 mV and 50 mV Range Increase The measurement range is increased when the auxiliary input exceeds 11096 of the measurement range The measurement range is increased when the peak value of the auxiliary input exceeds 150 of the meas
18. Description Efficiency User Defined Functions Function Description F1to F20 User defined functions User defined events Function Description Ev1 to Ev8 User defined events Input Element Yes Yes Yes Yes Yes Yes Yes Yes Yes Wiring Unit No Yes Yes Yes Yes Yes Yes Yes Yes 1 2 IM WT1801 01EN 1 Items That This Instrument Can Measure Harmonic Measurement Functions Option Wiring Unit Function U k K k P k S k Q k A k O k U k 1 k Z k Rs k Xs k Rp k Xp k Uhdf k Ihdf k Phdf k Uthd Ithd Pthd Uthf Ithf Utif Itif hvf hcf K factor QUui Uj QUi Uk QUi li oUj lj QUk Ik Description Rms voltage of harmonic order k Rms current of harmonic order k Active power of harmonic order k Apparent power of harmonic order k Reactive power of harmonic order k Power factor of harmonic order k Phase difference between the voltage and current of harmonic order k Phase difference between the fundamental signal U 1 and harmonic voltage U k Phase difference between the fundamental signal I 1 and harmonic current I k Impedance of the load circuit Series resistance of the load circuit Series reactance of the load circuit Parallel resistance of the load circuit Parallel reactance of the load circuit Harmonic voltage distortion factor Harmonic current distortion factor Input Element Yes Yes Yes Yes Yes Yes Yes Y
19. Eal EAI e Auxiliary Input Option Aux1 AUX1 Aux2 AUX2 Setting Operand Parameters The parameters that you need to enter depend on whether the function is followed by or y Setting Parameters for Functions Followed by Specify the element to the left of the comma and specify the harmonic order to the right of the comma For example E1 OR2 Symbols used to represent elements E1 to E6 Elements 1 to 6 E7 to E9 Wiring units ZA to ZC Symbols that indicate the harmonic order Order ORT Total value ORO dc OR1 Fundamental wave OR2 to OR500 Harmonic orders 2 to 500 On models with the harmonic measurement option or the simultaneous dual harmonic measurement option Setting Parameters for Functions Followed by Specify the element You do not need to specify a harmonic order For example E1 For information about the parameters that you can use with each operand see appendix 6 in the getting started guide IM WT1801 03EN IM WT1801 01EN 8 3 8 Computation Values Substituted in Operands The unit of TI values is seconds n1 to n4 are displayed as percentages see in appendix 1 in the getting started guide IM WT1801 03EN However in this section ETA1 to ETA4 are described as ratios Example When n1 is 8096 ETA1 is 0 8 The U1 in PHIU1U2 represents the voltage signal of the element whose element number is the smallest in the wiring unit ZA 2B or 2C For
20. The date time and communication setup parameters are not saved So even if you load setup parameters from a file the date time and communication settings will not change The WT1800 cannot load setup parameters that have been saved by a product with an incompatible firmware version The WT1800 cannot load setup parameters that were saved by an instrument with a different element configuration different options etc IM WT1801 01EN 18 5 18 Saving and Loading Data File Operations Utility You can perform file operations such as creating folders on the storage medium deleting and copying files and changing file names Us the up and down cursor keys to select from the file list the file or folder that you want to perform an operation on Storage Media Displayed in the File List gt Click here Li Up to 512 files and folders can be displayed in the file list If there are more than a total of 512 files and folders in a given folder the file list for that folder will only display 512 files and folders There is no way to set which files and folders are displayed When you turn off the WT1800 power the contents of the internal RAM disk are lost Save the contents of the RAM disk to a USB memory device or network drive before you turn off the WT1800 Sorting the File List Sort To You can sort the file list by file name size or date and time Display Format Select whether to display a list of files or to
21. Waveform label TiUrms1 p9 60 V T2 P1 774 11 W NAN La TAPI 74 07W Ti Urms1 99 20V 00 00 00 lt lt 1602 p p gt gt 00 05 00 Time at the left edge Time at the right edge of the screen of the screen amount of time contained in the screen fixed at 0 seconds The number of data points between the left and right edges of the display P P s indicates that the displayed trend has been P P compressed Scale Value The trend number measurement function element and lower limit of the displayed trend IM WT1801 01EN 11 1 11 Trend Display Display Format FORM Number of Trend Display Windows Format You can choose the number of windows from one of the following options Single No windows Dual Two windows Triad Three windows Quad Four windows Depending on the number of windows the number of displayed points in each window changes as described below Single 672 points Dual 336 points Triad 224 points Quad 168 points When the screen is split the number of displayed points along the vertical axis of a single window is halved Methods for Assigning Waveforms to Screens Trends whose displays are turned on are assigned in numeric order T1 to T16 to the split screens The assignment method corresponds to the Auto option in the waveform display Time Axis Time div The time axis is set in Time div time per grid division The tim
22. When integrating lac DC to approximately 1 MHz DC or the lower frequency limit determined by the data update interval to approximately 1 MHz DC or the lower frequency limit determined by the data update interval to approximately 1 MHz DC to approximately 1 MHz DC or the lower frequency limit determined by the data update interval to approximately 1 MHz The lower frequency limit determined by the data update interval to approximately 1 MHz Using an External Signal to Control Integration Option On models with the 20 channel D A output option you can use the remote control feature to use an external signal to start stop and reset integration For details about the remote control feature see appendix 4 6 in the getting started guide IM WT1801 03EN Backup When a Power Failure Occurs f a power failure occurs when integration is in progress the integration result is held When the power returns integration is stopped and the integration result calculated up to the point when the power failure occurred is displayed After the power returns you must reset integration to start it again Limitations on Modifying the Settings during Integration During integration there are some settings that you cannot change and functions that you cannot execute For details see appendix 9 in the getting started guide IM WT1801 03EN Limitations on Waveform Display during Integration During integration the waveform display trigger d
23. When you select a function that has harmonic data you can set the displayed harmonic order within the following range Total Total value or 0 DC to 500 The orders that can be specified vary depending on the measurement function For details see Harmonic Measurement Function Orders P Click here The trends of orders that exceed the maximum measurable order are displayed at the top or bottom of the screen For information about the maximum measurable harmonic order see Maximum Harmonic Order to Be Measured Max Order P Click here Li Trends for which there is no corresponding numeric data are displayed at the top or bottom of the screen f you choose to display the trend of a user defined event Ev1 to Ev8 the trend display shows 1 when the user defined event is occurring and 0 when it is not occurring Trend Display Scale Setting the Vertical Scale Scaling You can set the upper and lower limits of a trend window Set the display mode to one of the options below Auto The upper and lower limits of the trend window are automatically determined based on the maximum and minimum trend display data values Manual You can set the upper and lower limits manually Upper and Lower Limits for Manual Scaling Upper Scale and Lower Scale You can set the upper and lower limits within the range of 9 9999 T to 9 999 T IM WT1801 01EN 11 3 12 Bar Graph Display Option Bar Graph Display OTHERS Bar
24. You can set the timeout time to a value between 1 and 3600 O To apply the settings that you specified press Entry FTP Server Overview When the WT1800 is connected to the network as an FTP server the following features become available FTP Server Feature From a PC you can view a list of files that are stored in the WT1800 storage media the internal RAM disk and the storage media that are connected to the WT1800 and retrieve files IM WT1801 01EN 21 3 21 Ethernet Communication Network Network Drive Net Drive You can save the WT1800 s setup data numeric data waveform display data and screen image data to a network drive You can also load the setup data from a network drive into the WT1800 FTP Server FTP Server Specify the IP address of an FTP server on the network You can save numeric data waveform display data and screen image data to the server and load setup data from it In a network with a DNS server you can specify the host name and domain name instead of the IP address Login Name Login Name Specify the login name Number of characters Up to 32 Usable characters All ASCII characters that are displayed on the keyboard Password Password Specify the password that corresponds to the login name Number of characters Up to 32 Usable characters All ASCII characters that are displayed on the keyboard Passive Mode Passive Turn passive FTP on or off In passive mode the FT
25. 1 Speed and torque waveforms are available on models with the motor evaluation option 2 Aux1 and Aux2 waveforms are available on models with the auxiliary input option Display Item ITEM Displaying All Waveforms All ON The waveforms of all input signals are displayed Displaying No Waveforms All OFF No waveforms are displayed Selecting Which Waveforms to Display Display ON OFF You can select whether to display the waveform of each input signal of each element by selecting or clearing the signal s check box Only the input signals of installed elements appear On models with the motor evaluation option you can turn the displays of the waveforms of the speed and torque input signals on and off On models with the auxiliary input option you can turn the displays of the waveforms of the Aux1 and Aux2 input signal on and off Vertical Zoom Vertical Zoom Each displayed waveform can be scaled You can select one of the following zoom factors 0 1 0 2 0 25 0 4 0 5 0 75 0 8 1 1 14 1 25 1 33 1 41 1 5 1 6 1 77 2 2 28 2 66 2 83 3 2 3 54 4 5 8 10 12 5 16 20 25 40 50 or 100 10 8 IM WT1801 01EN 10 Waveform Display Vertical Position Vertical Position You can vertically shift the displayed position vertical position of a waveform This is useful when you want to view the relationship between voltage and current waveforms or when the section of the waveform that you want to view do
26. Conditions for Simultaneous Element Selection Only input elements of the same type 50 A input or 5 A input can be selected Only input elements whose valid measurement range settings are the same can be selected Initial Values for Simultaneously Selected Elements The voltage range current range and auto range on off settings of the element that was selected before you selected the other elements are copied to all the other selected elements After you have selected all the input elements changes that you make to the voltage range current range and auto range on off settings affect all the selected input elements To disable simultaneous selection and specify independent input element settings press ELEMENT Voltage Range RANGE UP DOWN V The voltage range can be fixed when auto range is set to off or determined automatically when auto range is set to on Fixed Ranges When the voltage range is fixed you can select a range from the available options The selected voltage range does not change even if the amplitude of the input signal changes Set the range in reference to the rms value of the input signal When the Crest Factor Is Set to CF3 You can select from 1 5 V 3 V 6 V 10 V 15 V 30 V 60 V 100 V 150 V 300 V 600 V and 1000 V When the Crest Factor Is Set to CF6 You can select from 0 75 V 1 5 V 3 V 5 V 7 5 V 15 V 30 V 50 V 75 V 150 V 300 V and 500 V Auto Range P Click here Li
27. TEPIP E test items Thd formula ur ultr a e time difference from GMT Total effiCleliCy casi im oet cor ene iden niens trademarks oiii itae reete peste Lon scenes ete cues inue i li m wend display e nee crecctes ne E aE trend display scale trend display windows number of ssssssssss 11 2 trend n rmbetr i p c retrace se anil 11 3 trends restarting oet etus ien 11 2 trigger 10 5 16 6 triggered mod6e cci n n ees ER ta testet dien eene 10 5 Migger eVEM ienaa C 17 3 20 3 trigger IGVel e irt cc e aaa 10 5 trigger point 10 6 trigger settings 10 5 16 6 trigger slope 10 5 RII GOR SOUR CS Ur CADET NE 10 5 TYPO 8 8 Type 2 8 8 Hoc E MH 8 9 U Um Ul measuring Imode senr oerte reper e ESE U I MODE U Mag Unit oe LING auxiliary pL 2 ts rakes veered Attention unit motor evalu ati D errore rr vr pere rece ete unit user defined function T o To AL AS NI ETE pper limit a t ect en nu deas 12 2 Upper Scale ecciesie Pe rri TENi 11 3 12 2 Uii 22 3 18 1 18 1 USB keyboatd 2 2 ec ta a apo e aE 22 7 USB keyboard language 22 7 USB memory
28. 00 00 00 to 23 59 59 Now The scheduled integration start time is set to the current time Copy The scheduled integration start time is copied to the scheduled integration stop time When Independent Integration Is Disabled The scheduled times that you specified above apply to every element When Independent Integration Is Enabled Setting You can select the method for setting the scheduled times from the following options Each Setthem separately for each input element All Set them for all installed input elements at the same time Element1 to Element6 You can set the scheduled times for each element within the range given above o You can set the day for the scheduled start or stop time in February to a value as high as the 31st day If you do so an error message will appear when you start integration Reset the scheduled stop time The WT1800 recognizes leap years when it executes the integration operation n real time normal integration mode and real time continuous integration mode after you press Start and the WT1800 enters into an integration ready state the numeric data may not be updated immediately This is because the numeric data is updated in sync with the WT 1800 clock This ensures that the numeric data is updated at the same time as the scheduled integration start time and that the integration time is accurate 9 10 IM WT1801 01EN 9 Integrated Power Watt hours Integration Auto Ca
29. 16 4 IM WT1801 01EN 16 High Speed Data Capturing Capture Control Settings Control Settings Voltage and Current Measurement Modes U I Measuring Mode Select the modes for measuring voltage and current Setting Select the method for setting the voltage and current measurement modes from the following options Each Set the mode separately for the voltage and current of each input element All Set the mode for the voltages and currents of all installed input elements at the same time U1 to I6 Select the voltage and current measurement modes from the following options rms mean dc r mean For details about how the voltage and current values are determined in each measurement mode see appendix 1 in the getting started guide IM WT1801 03EN The voltage or current measurement mode rms mean dc r mean mE Element 2 Element 3 Element 4 Voltage Current Li If the voltage and current measurement mode settings differ for elements assigned to the same wiring unit the voltage UZ and current IZ of the wiring unit are not measured and are displayed as no data HS Filter HS Filter Turning on the HS high speed filter stabilizes the measured values The HS filter averages the measured values The HS filter is different from the line filter Set whether to enable the HS filter and set the cutoff frequency You can set the cutoff frequency within the following range 1 Hz to 1000 Hz in 1 Hz
30. Because the line filter is inserted into the voltage and current measurement input circuits it directly affects voltage current and power measurements see the block diagram in appendix 11 in the getting started guide IM WT1801 03EN When the line filter is turned on measured values do not contain high frequency components Thus the voltage current and power of inverter waveforms strain waveforms etc can be measured with their high frequency components eliminated Element1 to Element6 Use the soft keys to select an element and then turn the line filter on or off and set the cutoff frequency You can set the cutoff frequency to 300 kHz 1 MHz or a value from 0 1 kHz to 100 0 kHz in 0 1 kHz steps If the line filter of even one of the elements is not set to OFF the LINE FILTER key and the Line Filter indicator at the top of the screen illuminate Selecting OFF disables the line filter Copying the Line Filter Setting Exec Copy 2 Copy the line filter on off setting and cutoff frequency of the selected input element to the other input elements in the same wiring unit Line Filter for High Speed Data Capturing P Click here Frequency Filter FREQ FILTER The frequency filter is inserted into the frequency measurement input circuit and affects frequency measurements It also affects the detection of the measurement period for voltage current and power measurements see appendix 5 in the getting started guide IM WT1801
31. OL for over range is displayed for P OL for over range is displayed for UZ if even one of the measured voltage values for an input element in a single wiring unit is over range The same is true for I2 and Pz Uz and I are displayed as zero when they are the following percentage of the maximum voltage range or current range out of the input elements assigned to the same wiring unit When the Crest Factor Is Set to CF3 0 396 or less for Urms and Irms 296 or less for Umn Urmn Imn and Irmn When the Crest Factor Is Set to CF6 0 696 or less for Urms and Irms 496 or less for Umn Urmn Imn and Irmn Fundamental Measurement Conditions All the settings for the fundamental measurement conditions for high speed data capturing are the same as those for normal measurement However the following limitations apply to the wiring system and line filter Wiring System during High Speed Data Capturing When the wiring system is set to one of the following settings you can measure the voltage U current I and power P 1P2W Single phase two wire system e 3P4W Three phase four wire system 3P3W 3V3A Three voltage three current method When the wiring system is set to one of the following settings the voltage UZ current IZ and power P for the wiring unit are not measured and are displayed as no data When the wiring system is being set or high speed data capturing has been started
32. UI 3 U rms voltage rms current Phase difference between voltage and current The power values are related as follows Apparent power S Active power P Reactive power S 4 The three phase power is the sum of the power of each phase These definitions only apply for sine waves The measured values for apparent power and reactive power vary for distorted waveform measurement depending on which of the above definitions are combined for the computation Because the equations for deriving the apparent and reactive power for distorted waveforms are not defined none of the equations can be said to be more correct than the other Therefore the WT1800 provides three equations Type 1 to Type 3 for determining the apparent power and reactive power Unlike apparent power and reactive power active power is derived directly from the sampled data so errors resulting from different definitions do not occur Type 1 The method used in the normal mode of conventional WT series power meters The WT1800 calculates the apparent power of each phase using equation 3 calculates the reactive power of each phase using equation 2 and sums the results to derive the power Active power for a three phase four wire system P P1 P2 P3 Apparent power for a three phase four wire system S S1 S2 S3 U1 x 11 U2 x 2 U3 x I3 Reactive power for a three phase four wire system Q Q1 Q2 Q3 s1x4 U1 11 2 P12 82x 4 U2x12
33. You can select the element or wiring unit to display from the options below The available options vary depending on the installed elements Elementi Element2 Element3 Element4 Element5 Element6 2A 2B and 2C Setting Vector Zoom Factors U Mag I Mag You can change the sizes of the vectors You can specify separate zoom factors for the fundamental waves U 1 and 1 When you zoom a vector the value for the size of the peripheral circle of the vector changes according to the zoom factor Setting the Zoom Factor of the Vector of Fundamental Waveform U 1 U Mag You can set the zoom factor to a value between 0 100 and 100 000 Setting the Zoom Factor of the Vector of Fundamental Waveform 1 I Mag You can set the zoom factor to a value between 0 100 and 100 000 Li If the zoom factor is too large the vector will exceed the display range and will not be displayed properly Reduce the zoom factor so that the vector is displayed within the display range 13 2 IM WT1801 01EN 14 Split Display Split Display OTHERS You can split the screen into top and bottom halves and select a display to show in each half You can select the following items Split displays with the numeric display Numeric Split displays with the waveform display Wave Split displays with the trend display Trend Split Displays with the Numeric Display Numeric Numeric data is displayed in the top half of the screen Select
34. __ BMP format bmp PNG format png JPEG format jpg Screen image data BMP format bmp PNG format png JPEG format jpg Screen image data Ree 1 Data acquisition using USB Ethernet or GP IB 2 Data acquisition using USB memory Storage Media The WT1800 can access the following three types of storage media for saving and loading data Internal RAM Disk RAM 0 The internal RAM disk of the WT1800 USB Memory USB 0 or USB 1 A USB memory device that is connected to the WT1800 USB port USB2 0 mass storage devices compatible with USB Mass Storage Class Ver 1 1 can be connected to the WT1800 Network Drive Network A storage device on the network You can use a network storage device by connecting the WT1800 to an Ethernet network Li When you turn off the WT1800 power the contents of the internal RAM disk are lost Save the contents of the RAM disk to a USB memory device or network drive before you turn off the WT1800 IM WT1801 01EN 18 1 18 Saving and Loading Data Li Notes about Using USB Devices Connect the USB memory device to the USB port for peripherals type A directly not through a USB hub Use portable USB storage media that are compatible with USB Mass Storage Class version 1 1 You cannot use protected USB storage devices such as those that contain encrypted content Only connect compatible USB keyboards mouse d
35. 03EN In this case the filter also acts as a filter for detecting the zero crossing of the synchronization source signal more accurately The frequency filter is not inserted into the voltage and current measurement input circuits Therefore the measured values include high frequency components even when the frequency filter is turned on Element1 to Element6 Use the soft keys to select an element and then select the element s cutoff frequency from the options listed below OFF 100 Hz and 1 kHz The WT1800 detects the zero crossing point with a hysteresis of approximately 5 of the measurement range If even one element is not set to OFF the Freq Filter indicator at the top of the screen illuminates If the line filter described above is on it affects the frequency measurement even when the frequency filter is off We recommend that you turn the frequency filter on when the input signal frequency is less than or equal to 440 Hz IM WT1801 01EN 2 19 2 Fundamental Measurement Conditions Data Update Interval UPDATE RATE The data update interval is the interval at which the data that is used in measurement functions is sampled You can select the data update interval from the options below 50 ms 100 ms 200 ms 500 ms 1 s 2 s 5 s 10 s and 20s At each data update interval the numeric data is updated stored transmitted through a communication interface and converted and output as analog signals To capture r
36. 2 P22 s3x4 U3x13 2 P32 The signs for s1 s2 and s3 are negative when the current leads the voltage and positive when the current lags the voltage Type 2 The WT1800 calculates the apparent power of each phase using equation 3 and sums the results to derive the three phase apparent power The WT1800 calculates the three phase reactive power from the three phase apparent power and the three phase active power using equation 4 Active power for a three phase four wire system P P1 P2 P3 Apparent power for a three phase four wire system S S1 S2 S3 U1 x 11 U2 x 2 U3 x I3 Reactive power for a three phase four wire system Qz 4S2 P2 8 8 IM WT1801 01EN 8 Computation Type 3 The method used in the harmonic measurement modes of the WT1600 WT3000 and PZ4000 The WT1800 calculates the reactive power of each phase using equation 2 and calculates the three phase apparent power using equation 4 This equation is available on models with the harmonic measurement option or the simultaneous dual harmonic measurement option Active power for a three phase four wire system P P1 P2 P3 Apparent power for a three phase four wire system Srx J Pr2 Qy2 Reactive power for a three phase four wire system Q Q1 Q2 Q3 Corrected Power Equation Pc Formula Some standards require that a voltage transformer s active power be corrected when the load connected to the voltage transformer is very small You can sele
37. 200 ms observation time observation time 10 2 IM WT1801 01EN 10 Waveform Display Difference between Waveform Sampling Data and Waveform Display Data Waveform sampling data and waveform display data are both measured waveform data but they differ as described below Waveform sampling data Data derived through A D conversion of the input signal The WT1800 A D conversion rate is approximately 2 MS s Therefore if the data update interval is set to 1 s the number of data points sampled from a single input signal in a single measurement is approximately 2 000 000 see the figure below Waveform sampling data is also called acquisition data or raw wave data Waveform display data Waveform data displayed on the WT1800 screen 1602 points When the WT1800 displays waveforms data points of waveform display data are displayed in horizontal rasters along the time axis The number of rasters is 801 Each raster contains two points of waveform display data The two data points are the maximum and minimum values of the waveform data in each raster Therefore the number of waveform display data points the number of points displayed on the screen for a single input signal is 1602 p p Compression p p compression is the compression method used to derive waveform display data from waveform sampling data For example if a 2 Hz sine wave is measured at a data update rate of 1 s to display this waveform the WT1800 converts th
38. A output P Click here Self Test Selftest You can test the keyboard and memory operations P Click here IM WT1801 01EN 22 1 22 Utility Overview System Overview You can display the following information about the WT1800 Item Description Model The model number Suffix The suffix code No The instrument number Version The firmware version Element Configuration The input element type Options The options Link Date The firmware date Product ID A unique device ID that is assigned to each unit This number is necessary for the purchase of additional options Firmware Version and New Features This manual covers firmware versions 2 01 or later of the WT1800 The following table contains new features that are available for each firmware version If you are using an older version you will not be able to use all the features described in this manual To view the firmware version press UTILITY and then the System Overview Soft key and check Version on the System Overview screen that is displayed Version Suffix Code New Features 2 010rlater HS High Speed Data Capturing features Chinese and German have been added to the menu language and message language Initializing the Settings Initialize Settings You can reset the WT1800 settings to their factory default values This feature is useful when you want to cancel all of the settings that you have entered or when you want to redo measurement fro
39. Auto Print Auto Print ON OFF PRINT key PRINT key off Time Printing Tp Print interval Data is printed if Print at Start is set to ON Real Time Print Mode When the scheduled start time is before Auto Print ON Start Auto Print Auto Print OFF time ON or the ending time PRINT key PRINT key off Time T Printing A f A Tp Print interval Data is printed if Print at Start is set to ON When the scheduled start time is after Auto Print ON Auto Print Start Auto Print OFF ON time or the ending time PRINT key PRINT key PRINT key blinking off g Time Printing Tp Print interval Data is printed if Print at Start is set to ON 20 4 IM WT1801 01EN 20 Printing Screen Images and Numeric Data Option Integration Synchronization Print Mode Printing is executed in sync with the integration start time When integration starts before Auto Print ON Integration Auto Print Forced Auto Print start ON integration stop OFF PRINT key blinking PRINT key PRINT key off Time Printing Tp Print interval Data is printed if Print at Start is set to ON When integration starts after Auto Print ON Auto Print Integration Forced Auto Print ON start integration stop OFF PRINT key PRINT key blinking PRINT key PRINT key blinking off Time e Printing A A Tp Print interval Data is printed if Print at Start
40. CSV conversion CUFSOE Ticis rac tdeo nee ees Do Lo ed ees aerate auto enter correction 2er erret trit nere eee hes rP automatic CSV conversion sssssssssss 16 8 17 5 cursor measurement ee automatic printing 20 2 cursor movement linking aona Mih es cocco cepcn ces tron cene tertie terret ri eS 18 4 cursor movement path of esses auto off 2 Cursot pali s ne ii duit eee auto print settings 0 cn reU retenta 20 2 custom auto range auxiliary input ees 5 1 custom display auto range current auto range motor evaluation D auto range voltage seeeeeeenen D A output items ete teret ERE auto range for the external current sensor range 2 12 D A output rated time Auxillary INDUS EE CES D A GUIDUE cect ivcichentedussincvscevesstsdciuansitdveray eanborensllob AN eee data SAVING aiia m Metas ct reti ee Lv average active power data update interval average count ale tM Gas xci recrtite cere AS ee nennen date and time settings ssss 22 5 averaging YPE sosirii rekrea s aN AAEN e s decimal point 22 7 AVG Pee eee eee eee reer ee reer reer reer reer eee ee eee eee ere rere eee ee ee eee eee ee eee eee eee eee decimal point for CSV File 22 7 delta star transformation uh B Page Delta Star is 27 background color 22 7 delta computation eee
41. Conditions P Click here Li When you save numeric data and a point has no numeric data NAN OL OF ERROR or a blank space will be saved instead The places that contain blank spaces are in measurement functions such as the ones for the Oth DC and 1st harmonic orders of PU and OI where the screen display is also blank 18 2 IM WT1801 01EN 18 Saving and Loading Data File Save Conditions Displaying a File List and Specifying the Save Destination File List On the file list specify the save destination For information about how to configure the file list display and how to operate files and folders see File Operations Utility P Click here Saved Items Item Settings This menu item only appears when you select Save Numeric Displayed Numeric Items Displayed Numeric Items The saved items vary as indicated below depending on the display When Numeric Values Are Displayed in the 4 8 or 16 Value Display or the Matrix Display All the measurement functions on the page that is displayed when saving starts are saved in the order that they are displayed When Numeric Values Are Displayed in the Single or Dual Harmonics List In addition to the data described above the data of harmonics that are not displayed on the screen is saved up to the maximum measurable order Max Order When Numeric Values Are Displayed in the All Items or Custom Display The data cannot be saved If you attempt to save the data a
42. Images and Numeric Data Option You can use the built in printer to print screen images and numeric data lists You can also add comments to Screen images If you use automatic printing screen images and numeric data lists are printed automatically at the specified print interval Also you can set scheduled automatic printing start and stop times to print at a specific time Printing Conditions PRINT MENU You can configure the following printing conditions Output format Format Automatic printing execution Auto Print ON Automatic printing Auto Print Settings Comment Comment Paper feed Paper Feed Output Format Format You can select the data format to print from the options listed below Screen Screen image data List Numeric list data Printed Items If you set the output format to numeric data list List the printed items vary as indicated below depending on the display that is shown When numeric values are displayed in the 4 8 or 16 value display or the matrix display All the measurement functions on the page that is displayed when printing starts are printed in the order that they are displayed When numeric values are displayed in the single or dual harmonics list In addition to the data described above the data of harmonics that are not displayed on the screen is printed up to the maximum measurable order Max Order When numeric values are displayed in the All Items or Custom display P
43. Li The output is O V if a measurement function is not selected or if there is no numeric data e Ifa scaling factor such as a VT ratio CT ratio or power coefficient is applied to a voltage current or power value and scaling is enabled the WT1800 produces 100 output 5 V when the scaled measured value is the same as the scaled rated value measurement range x scaling factor For 2 functions the WT1800 produces 100 output 5 V when the measured value is equivalent to the value that is measured when all of the elements in the group are at their rated values When the elements have different scaling factors the WT1800 produces 100 output 5 V when the scaled measured values are the same as the scaled rated values measurement range x scaling factor Relationship between Output Items and D A Output Voltage Frequency the figure is simplified D A output Approx 4 7 5V 5 0 V 0 5V 0 1 E 10 Hz 1 kHz Hz 100 Hz 10 kHz User Defined Events When the event is occurring True 5V When the event is not occurring False 100 kHz 1 MHz OV 100 MHz 10MHz 1G 1 X 7 5 value z GHz Displayed IM WT1801 01EN 22 9 22 Utility Integrated Values D A output4 Approx 7 0 V 25 rr rrr rr rrr rrr rrr rrr nnn rns At 140 of the rated input 5 0 V At the rated input 0 is gt Integration time t0 The
44. Min Order Max Order seem 3 2 Distortion Factor Equation Thd Formula eiiis n erigere cce recs roa trees dees 3 3 Input Element Group Element Settings enn 3 3 Anti Aliasing Filter eoi a n a eee tente cedet eed eel Fete rein ive eae 3 4 IM WT1801 01EN Contents Motor Evaluation Conditions Option Motor Evaluation Conditions and Auxiliary Input Conditions MOTOR AUX SET 4 1 Scaling Factor Scaling iniit eerie ER de tio ERO ERR EE te uec tene qu te pea 4 1 Ui eee GB NA 4 2 Input Signal Type Sense Type neoini aaan certe et ek eL u ende rennen aaa 4 2 Pncleeeuiulmc 4 3 Linear Scaling of Analog Input niei rece ean ie eee Eius v ie EE OR SEP CR UOS rab 4 3 Lime Filter LIMES INGE amp sscceseceseckacepcasces 4 4 Synchronization Source Sync SOUFCB eisai eA Masai df eka Eee cuiu dee dfe ua eap cud 4 5 Pulse Input Range etre Ernie eorom repo spe et vote best ce deo apa LE dE eta sa o ebat aput bote eade Eon D Eu ub 4 5 Torque Signal Pulse Ratlng 5 iria i eere Be iue cei Li ei HIE EDD ada 4 5 Revolution signal pulses per revolution Pulse N sseee me 4 7 Synchronous Speed Sync Speed iie ie retedies cese ie ie eie ces cenae cog 4 7 Electrical Angle Measurement Electrical Angle Measurement
45. NULL and enable the NULL feature the WT1800 sets the NULL value Afterwards the NULL value is used to correct the measurement function values If you press NULL again the NULL feature is disabled but the WT1800 saves the specified NULL value When the NULL value has already been set Even if you press NULL and enable the NULL feature the NULL value is not updated The saved NULL value discussed above is used to correct the measurement function values For example if you turn on the power and then immediately enable the NULL feature the NULL value has not yet been set so the value measured then is used as the NULL value If you press NULL again afterwards the NULL feature is disabled The WT1800 saves the NULL value Even if you press NULL and enable the NULL feature the NULL value is not updated The saved NULL value discussed above is used to correct the measurement function values OFF Even if you press NULL the NULL feature is not enabled Measurement function values are produced with no NULL correction The held NULL value is cleared under the following circumstances Operations that cause the NULL values of all inputs to be cleared Turning on the power the NULL values are not backed up when you turn off the power Initializing the settings Loading a setup data file Operations that cause the NULL value of the input whose settings were changed to be cleared Switching between direct current input and external current sensor
46. Pm we recommend that you set the scaling factor of each item so that the unit of Pm is W 2T 60 Motor output Pm xSpeedxTorquexS Speed The rotating speed determined from the number of pulses per revolution Torque The torque determined from the torque signal pulse rating S The scaling factor Unit Unit Number of characters Up to eight Usable characters Spaces and all characters that are displayed on the keyboard Input Signal Type Sense Type You can select which of the following two types of signals you want the WT1800 to receive from the revolution sensor and torque meter Analog Select this option when the WT1800 will receive DC voltage analog signals Pulse Select this option when the WT1800 will receive pulse signals Settings for Different Signal Types As indicated below the settings that you need to configure vary depending on the revolution and torque signal type Settings Related to the Signal Type Setting Signal Type Analog Pulse Analog auto range Yes No Analog range Yes No Linear scale A B Yes No Line filter Yes No Synchronization source Pulse range No Yes Number of pulses per revolution No Yes Yes Must be set No Does not need to be set Measurement can be performed when the sync source is set to None the default setting but you can increase synchronicity with power measurement by specifying a sync source IM WT1801 01EN 4 Motor Evaluation Conditions O
47. Qs E Max min current Ipk E Ipks current sensor output Ipks E Element1 to Element6 Use the soft keys to select an element and then set the element s external current sensor conversion ratio to a value within the following range 0 0001 to 99999 9999 Copying the External Current Sensor Conversion Ratio Exec Copy Z Copy the external current sensor conversion ratio of the selected input element to the other input elements in the same wiring unit External Current Sensor Range and Conversion Ratio Configuration Example When you measure a current with a maximum value of 100 A using a current sensor that produces 10 mV when 1 A of current is flowing the maximum voltage that the current sensor produces is 10 mV A x 100 A 1 V Therefore configure the settings as indicated below External current sensor range 1 V External current sensor conversion ratio 10 mV A Li When you want to divide the external current sensor output by the conversion ratio and read the current of the circuit under measurement directly turn the external VT CT scaling feature off If the feature is turned on the value will be further multiplied by the CT ratio When you are measuring a signal other than a sine wave such as a distorted wave you can obtain accurate measurements by selecting the smallest measurement range that does not produce any of the conditions below The input peak over range indicator at the top center of the screen illuminates
48. Range Box Left column of the list You can enable All ON or disable All OFF a range for all input elements at the same time Measurement Range in Which a Peak Over Range Has Occurred Peak Over Jump You can specify which measurement range to switch to when the auto range feature is enabled and a peak over range occurs The background of the selected measurement range turns yellow If a peak over range occurs when this feature is disabled the WT1800 increases the measurement range switching between valid measurement ranges measurement ranges whose check boxes have been selected You can specify valid current measurement ranges for each input element type e 50A Input Element Select the valid direct input measurement ranges of 50 A input elements 5A Input Element Select the valid direct input measurement ranges of 5 A input elements ExtSensor Input Element Option Select the valid external current sensor input measurement range Li You cannot set all measurement ranges to OFF There must be at least one valid range The settings for the valid range and for the measurement range to switch to when peak over range occurs are shared by all the input elements in a wiring unit When independent input element configuration is disabled and you change the wiring system all measurement ranges are enabled set to their initial setting When you switch independent input element configuration from on to off all measurement ranges
49. Real Time Normal Integration Mode R Normal Set the date and time when integration starts and stops and the duration of integration Integration starts at the scheduled start time When one of the conditions below is met integration is stopped and the integration time and integrated value are held The scheduled stop time is reached The specified timer time elapses The integration time reaches the maximum integration time 10000 hours The integrated value reaches its maximum or minimum displayable value A Hold no R S Hold c 2 I o o Start Stop Reset date and time date and time Li In real time integration mode when you set the integration time to 00000 00 00 integration starts at the scheduled start time When one of the conditions below is met integration is stopped and the integration time and integrated value are held The scheduled stop time is reached The integration time reaches the maximum integration time 10000 hours The integrated value reaches its maximum or minimum displayable value Real Time Continuous Integration Mode Continuous integration R Continuous Set the date and time when integration starts and stops and the duration of integration Integration starts at the scheduled start time When the specified timer time elapses integration is automatically reset and restarted If either of the conditions below is met integration is stopped and the integration time and
50. Setthe range in reference to the rms value of the input signal For example if you are applying a 100 Vrms sinusoidal signal set the range to 100 V When measuring a signal other than a sine wave such as a distorted wave you can obtain accurate measurements by selecting the smallest measurement range that does not produce any of the conditions below The input peak over range indicator at the top center of the screen illuminates or blinks in red The measured values of the voltage and current are indicated as being overload values OL The peak over range indicator may not illuminate or blink in the following cases e Ifthe pulse width is narrow and the peak value of the waveform cannot be acquired at the sampling rate of the WT1800 approximately 2 Ms S Ifthe high frequency components of the pulse waveform attenuate due to the bandwidth limitations of the WT1800 measurement circuit causing the waveform peak value to be less than the peak over range detection level When a signal with the peak which becomes more than about 10 times of the range is input it takes about 1 second to change the range When the secondary output of a VT voltage transformer is being applied to the voltage input terminal set the voltage range according to the maximum value of the VT output Then use the scaling feature to set the VT ratio IM WT1801 01EN 2 9 2 Fundamental Measurement Conditions To display a list of the range
51. Settings You can set the storage count to a value from 0 to the computed maximum storage count You can select Set to set the maximum storage count to the current storage count However you cannot do this if the current storage count is O 17 2 IM WT1801 01EN 17 Data Storage Li f you enable automatic CSV conversion Auto CSV Conversion and set the storage destination to a USB memory device the maximum storage count is computed with 2096 of the available USB memory designated as valid for stored data WTS and HDS files fthe maximum storage count is displayed as 0 there is not enough available memory in the storage destination Make more space available by deleting files for example f you change the number of stored items specified in Item Settings after you set the storage count the maximum storage count will change and you will need to set the storage count again Storage Interval Interval You can set the interval at which numeric data is stored You can set the hour minute and second within the following range If you set the interval to 00 00 00 the numeric data will be stored at the numeric data update interval 00 00 00 to 99 59 59 When the storage mode is set to Integ Sync storage continues even when integration is reset by the integration timer When the integration timer is reset the storage interval timer is also reset This setting is invalid when the storage mode is set to Event
52. Stopping High Speed Data Capturing Start Stop 16 9 Display Items ITEM enero erit eet cete terae e tre tes ee ERR eto pede Herten kenne und 16 11 Data Storage Storage Related Display Indications eene eee eene he cree tiia 17 1 Storage Conditions STORE SET 1 rici tien tcrra eod a ty senso vae nue e E eec 17 1 Storage Control Control Settings iui ie i ir hehe eei etes 17 2 Stored Items inesse es 17 4 Save Conditions File Settings 2 denied ieee a Ae es ae 17 5 Starting Stopping and Resetting Storage STORE START STORE STOP and STORE RESET 17 6 Storage Operations in Each Storage Mode sssseee enne 17 8 IM WT1801 01EN Contents 18 19 20 21 22 23 Index Saving and Loading Data Simus me 18 1 Saving Setup Data Save Setu p eiie tenter entente tt ertt elle cr Re eL Ye REDE de nb LENS 18 2 Saving Waveform Display Data Save Wawve ssssssee emen enn 18 2 Saving Numeric Data Save Numeric enne enne enne ener 18 2 Fil Save Conditions inrer rtr D a RE me en dea ti tati Her aR 18 3 Loading Setup Data Load Setup inei nien dives na eet 18 5 gi z9lsues je 18 6 Saving Screen Images Conditions for Saving Screen Image Data IMAGE SAVE MENU em 19 1 Saving Screen Image IMAGE SAVE edidi cete
53. Sync Integration synchronized storage mode Storage starts after you press STORE START and integration starts You can store numeric data at the storage interval until integration stops or just until the storage count is reached is reached Storage continues even when integration is reset by the integration timer When the integration timer is reset the storage interval timer is also reset Lu When independent integration is enabled storage cannot be performed in integration synchronized storage mode Event Event synchronized storage mode Storage starts after you press STORE START the measured data is updated and a user defined event occurs You can store numeric data each time the measured data is updated until the storage count is reached Single Shot Single shot storage mode Numeric data is stored whenever you press STORE START You can store numeric data until the storage count is reached Storage Count Store Count The storage count can be set to infinity or to a value from 1 to 9999999 When the storage count is set to infinity it is set to 9999999 Storage will stop before the specified storage count if the storage destination runs out of available memory or the stored data size exceeds the maximum value 1 GB Viewing and Optimizing the Maximum Storage Count Optimize Count The WT1800 computes the maximum storage count for the storage destination according to the number of data types specified in the Item
54. The ranges within which you can set the position are the same as those for cursor 1 C1 Position P Click here Linking Cursor Movement Linkage Set Linkage to ON to move cursor 1 and cursor 2 x without changing the distance between them Set the positions of the cursors by setting C1 Position Measured Items In the Waveform Display Yt The vertical axis Y axis value of cursor 1 Yx The vertical axis Y axis value of cursor 2 x Y The difference between the vertical axis Y axis values of cursor 1 and cursor 2 x X The horizontal axis X axis value of cursor 1 Xx The horizontal axis X axis value of cursor 2 x X The difference between the horizontal axis X axis values of cursor 1 and cursor 2 x 1 X The reciprocal of the difference between the horizontal axis X axis values of cursor 1 and cursor 2 x 15 2 IM WT1801 01EN 15 Cursor Measurement In the Trend Display Y Yx AY X Xx AX Dx Li The vertical axis Y axis value of cursor 1 The vertical axis Y axis value of cursor 2 x The difference between the vertical axis Y axis values of cursor 1 and cursor 2 x The horizontal axis X axis value of cursor 1 With the left edge of the screen being 0 seconds the time from the left edge of the screen is indicated The horizontal axis X axis value of cursor 2 x With the left edge of the screen being 0 seconds the time from the left
55. When the range is changed the NULL value upper limit will be determined by the new range The NULL value upper limit will also be adjusted when the range is decreased by the auto range feature Clearing Remote Mode LOCAL Use this key to switch from remote mode the REMOTE indicator will illuminate to local mode in which front panel key operations are valid This key is invalid when the WT1800 is in local lockout mode Key Lock KEY LOCK When you enable the key lock the WT1800 behaves as described below You can use the key lock to prevent unintentional operations All key operations are disabled except for those of the power switch and SHIFT LOCAL KEY LOCK The key lock indicator LOCK appears in the upper right of the screen 0 The key lock remains on or off even after the power is turned off IM WT1801 01EN 23 3 Index AMICI 2 6 AMeasure MOde ete et pps Cot c t pen 2 8 AMeasutre Types ciet ae eere err eter rcr 2 6 D EOFITIUIS eios e e E ne MEE D 2 functions ix UG LOTS oo sevice cag na ctetu LEE 16 value display 2 neret tp ze cete 7 1 SPSW IVSA ts diet ceeds eic fe cases Phaser cr D ECRIRE IR MIU IIBER 4 value display ji SIterme tet a C AE S ValUG display nto ed eR A Page advanced waveform display settings 10 7 aliasing 10 4 CUIBUIE 7 1 All tems display cii ette tret 7 1 ampere NOU Scia rap EE a EEE 9 1
56. are enabled set to their initial setting f you set the valid range setting for the current measurement range to OFF the WT1800 switches to the next highest measurement range If there is no measurement range above the current one the WT1800 Switches to the next lowest measurement range 2 16 IM WT1801 01EN 2 Fundamental Measurement Conditions Crest Factor Crest Factor The crest factor is defined as the ratio of the peak value of the waveform to the rms value Peak value Crest factor CF Rms value SS Sa es Peak value Rms value Input signal waveform On the WT 1800 the crest factor is the ratio of the maximum applicable peak value to the measurement range Peak value that can be input ies taser Measurement range You can set the crest factor to CF3 or CF6 CF3 The crest factor is 3 e CF6 The crest factor is 6 The measurable crest factor is as follows Crest factor CF measurement range x CF setting 3 or 6 Measured value rms value However the peak value of the input signal must be less than or equal to the maximum allowable input If the crest factor of the measured signal is greater than the specifications of the WT1800 the crest factor defined at the rated input you can measure the signal by setting a greater measurement range For example even if CF is set to 3 measurement is possible for signals with a crest factor greater than or equal to 5 when the measured v
57. ase end pons 10 5 Advanced Waveform Display Settings Display Settings 10 7 Waveform Mapping Wave Mapping sseeeeeneenm emm enne enne 10 8 Display Iter LTEM inre eret EE ede ne fed ire iets 10 8 Trend Display Other Displays OTHERS anite cose eeeo be bei eka hae Mie 11 1 Trend Display Trend 11 1 Display Format FO RM iit rte riore ite En ph eta E e esu setti tentot 11 2 BIO VALE UN 11 3 Bar Graph Display Option Bar Graph Display OTHERS Bar 1 creen nnne tee tre ertt itn iR ce nta Lund 12 1 Display Format FORM iiir ro ba e rere ieri c riesen redu tee pU 12 1 Display Item EUER d et LL 12 2 IM WT1801 01EN Contents 13 14 15 16 17 Vector Display Option Vector Display OTHERS Vector eror irr rnnt ne nini dnt than E kae ee ERR SEEE 13 1 Display Format FORM enirn onte bee over ERE dU Ce Ue i ee DEN ence DEUS PEU e CER a SR eR IS 13 2 Display Item ITEM eripe Rer e tese re na FOIE olasuseceuadeedaesoesnsaiueres 13 2 Split Display Split Display OTHERS inier ett e Eee eere t rir ER He eet Epi ee eai siue 14 1 Split Displays with the Numeric Display Numeric sssssssseeennm e 14 1 Split Displays with the Waveform Display Wave sssssssssssseee eme 14 1 Split Displays with the Trend Display Trend ssussssssssss
58. data of Urms or Irms is less than or equal to 105 of the next lower range The crest factor is set to CF3 and the data of Upk or Ipk is less than or equal to 30096 of the next lower range The crest factor is set to CF6 and the data of Upk or Ipk is less than or equal to 60096 of the next lower range Even if the NULL feature is on the values are determined as if it were off If all the installed input elements are selected all the element indicators are illuminated and meet the range decrease conditions described above all their measurement ranges are decreased When a wiring unit is configured and all the elements in the unit meet the range increase conditions described above all their measurement ranges are increased Li f you disable a measurement range in the valid measurement range settings that measurement range is skipped and the auto range feature operates using only the valid measurement ranges When non periodic pulse waveforms are applied the range may not remain constant If this happens use the fixed range setting 2 10 IM WT1801 01EN 2 Fundamental Measurement Conditions Current Range RANGE UP DOWN A The current range can be fixed when auto range is set to off or determined automatically when auto range is set to on Fixed Ranges When the current range is fixed you can select a range from the available options The selected current range does not change even if the amplitude of th
59. display the frequency as 0 or Error Motor Display When the Pulse Frequency Measurement Is Less Than the Lower Limit Motor Display at Pulse Freq Low When the pulse frequency of the torque or speed input signal is lower than the frequency that the WT1800 can measure you can choose to display the values of motor evaluation measurement functions as 0 or Error Separator and Decimal Point When Data Is Saved in ASCII Format csv Decimal Point for CSV File When you save data in ASCII format csv you can choose what type of decimal point to use and how to separate the data Period Period The decimal point is a period and the separator is a comma Comma Comma The decimal point is a comma and the separator is a semicolon Menu Font Size Menu Font Size You can set the menu font size to Small or Large Crest Factor Crest Factor gt Click here IM WT1801 01EN 22 7 22 Utility D A Output D A Output Items option You can generate numeric data as 5 V FS DC voltage signals from the rear panel D A output connector You can set up to 20 items channels Output Items Item The measurement functions that you select under Function and Element 2 appear here Function Function You can select any of the measurement functions listed under Items That This Instrument Can Measure P Click here To output integrated values through D A conversion set the rated time of integrated D A ou
60. example if input elements 2 3 and 4 are assigned to wiring unit 2A PHIU1U2 is the phase difference between the voltage signals of input elements 2 and 3 User defined equations can use other user defined equations with smaller numbers as operands For example the equation for user defined function F3 can be set to F1 F2 This allows equations that would otherwise exceed 50 characters in length to be computed This can be accomplished by for example setting equations in F1 and F2 and then adding or dividing those equations in F3 This feature is also convenient when defining multiple equations that include common operands For example you can set common operands in F1 and then set F4 as F3 divided by F1 and set F5 as F4 divided by F1 However if you enter a user defined equation with a number that is greater than or equal to its own number correct results will not be obtained For example if you set user defined function F3 to F1 F3 or to F1 F4 the computed result will be displayed as no data or OF overflow Operators The following operators can be used in equations Operator Example Description U E1 OR1 U E2 OR1 Basic arithmetic ABS ABS P E1 ORT P E2 ORT Absolute value SQR SQR I E1 ORO Square SQRT SQRT ABS I E1 OR3 Square root LOG LOG U E1 OR25 Natural logarithm LOG10 LOG10 U E1 OR25 Common logarithm EXP EXP U E1 0R12 Exponent NEG NEG U E1 0R12 Ne
61. input signal even once from the time when high speed data capturing starts until it stops the input signal is displayed in red Display example for when a peak over range has occurred in U1 and 12 Peak Over Status When display frames for measured values are displayed display frames of measured values within which a peak over range has occurred are displayed in red Evenif you stop high speed data capturing the peak over range occurrence information does not disappear The peak over range occurrence information will disappear be reset when after you stop high speed data capturing you restart high speed data capturing or change the settings o The input peak over range indicator in the center of the top section of the screen lights in red when a peak over range occurs IM WT1801 01EN 16 11 17 Data Storage You can store numeric data in binary format to the internal RAM disk or a USB memory device You can store the data at the data update interval or at a specified time interval You can convert stored binary data to ASCII csv format You can analyze the converted data on a PC You cannot use the WT1800 to recall stored data Storage Related Display Indications When the storage state is any state other than that of being reset the storage state and store count appear in the upper left of the screen Store state Storage count Store S 100 Start Storage has been started Stop Storage has been stopped Ready The
62. instructions on how to use them Notes Trademarks Revisions 2nd Edition August 2011 YMI The contents of this manual are subject to change without prior notice as a result of continuing improvements to the instrument s performance and functionality The figures given in this manual may differ from those that actually appear on your screen Every effort has been made in the preparation of this manual to ensure the accuracy of its contents However should you have any questions or find any errors please contact your nearest YOKOGAWA dealer Copying or reproducing all or any part of the contents of this manual without the permission of YOKOGAWVA is strictly prohibited The TCP IP software of this product and the documents concerning it have been developed created by YOKOGAWA based on the BSD Networking Software Release 1 that has been licensed from the Regents of the University of California Microsoft Internet Explorer MS DOS Windows Windows NT and Windows XP are either registered trademarks or trademarks of Microsoft Corporation in the United States and or other countries Adobe and Acrobat are either registered trademarks or trademarks of Adobe Systems Incorporated In this manual the amp and TM symbols do not accompany their respective registered trademark or trademark names Other company and product names are trademarks or registered trademarks of their respective holders 1st Edition February 2011 2nd Edit
63. left and right edges of the display P P indicates that the displayed waveform has been P P compressed Scale Value The measurement function element number and lower limit of the displayed waveform Measurement Mode during Waveform Display When waveforms are displayed the measurement mode indicated in the upper left of the screen is Normal Mode Trg After a trigger occurs measurement takes place at the data update interval Li f you do not set the trigger level properly the waveform display start point the signal level on the left edge of the screen may be unstable or waveforms may not appear Even when waveforms are displayed in the following situations the measurement mode indication at the upper left of the screen is Normal Mode During integration When the trigger mode is OFF In Normal Mode measurements are taken and the sampled data is updated automatically at the data update interval In this mode there are limitations on the waveform display feature gt Click here IM WT1801 01EN 10 1 10 Waveform Display Display Format FORM You can configure the following display format settings Number of windows Format Time axis Time div Trigger Trigger Settings Advanced waveform display settings Display Settings e Waveform mapping Wave Mapping Number of Windows Format You can divide the screen equally into windows and assign waveforms to those windows This function i
64. matrix display if you choose a measurement function that does not require an element or wiring unit such as n1 to n4 F1 to F20 Ev1 to Ev8 etc data is displayed in the first column Direct Function Selection U I P S Q A WP q TIME FU FI n and U I MODE This is the same as direct function selection in the 4 8 and 16 value displays P Click here Order Order option This is the same as setting the order in the 4 8 and 16 value displays P Click here Resetting the Display Items Reset Items This is the same as resetting the display items in the 4 8 and 16 value displays gt Click here Columns Column Settings Number of Columns Column Num You can set the number of columns to 4 or 6 Column Number Column No Select the number of the column that you want to configure Element Element z You can select the element wiring unit from the options below The available options vary depending on the installed elements None Element1 Element2 Element3 Element4 Element5 Element6 2A 2B and 2C f you select None no measurement data is displayed in the selected column If the selected wiring unit does not have any elements assigned to it because there is no data no data is displayed For example if elements are assigned to 2A but not to 2B the measurement function for 2B is displayed as no data Directly Selecting Elements ELEMENT This is the same as direc
65. may not be stable Also the numeric data measurement period may not be synchronized with the waveform data measurement period 10 6 IM WT1801 01EN 10 Waveform Display Advanced Waveform Display Settings Display Settings Display Interpolation Interpolate When there are less than 800 points of sampled data on the time axis the displayed points rasters do not connect with each other Numbers of sampled points below 800 are said to be within the interpolation range Display interpolation is a feature that connects the points linearly so that the waveform display is smooth You can set the interpolation method to one of the settings below DD No interpolation is performed Only the data points are displayed e The spaces between data points are connected with straight lines Outside of the Interpolation Zone The spaces between vertically aligned dots are filled If the number of data points is 1602 or greater the WT1800 determines the P P compression values the maximum and minimum sampled data values in a given interval and displays vertical lines rasters connecting each pair of maximum and minimum P P compression values du Inthe Interpolation Zone E eos ome Grid Graticule You can set the window grid to one of the following options The grid is displayed with dotted lines The grid frame is displayed HH The grid is displayed with a cross hair Turning the Scale Value Displ
66. motor evaluation ssssesesesss 4 3 Resolution 242227 optimization ssssseeeeenemeemnnen enn 16 4 17 2 rising 10 5 optimize count 16 4 17 2 Order e4 0S8 Page other displays ciet re E RUNS 11 1 a e OTHERS oooooooooooooo ooo voce ooo 11 1 oe enti Gouda ads Dm staan 22 2 SAN M E F sampling frequehoy iine ee ehe pte raa 8 9 Sav Condito Sessien iaaii E EEE 16 8 IM WT1801 01EN Index 3 Index saved tfe 16 8 save numeric 18 2 save setup 18 2 SAVE UTILE 18 2 Saving numeric data ic etie eta 18 2 scale mode scale value Scaling isi ei AE 4 1 5 1 11 3 Ie me Q 2 14 Scaling auxiliary Input oet foe tote 5 1 scaling motor evaluation scheduled storage time sessesssseess scheduled times 2 t eene Screen image colors screen image data formats Screen images saving selected item iin tweens idan CCIBCIIM C sense type sensor ratio separator sms SEQUENCE number suissa diane ieee set p data loadifig titres setup data saving Setup parameter liSt cesarean eaa cum SF scalitig u ttp aaia ep M single shot storage mode AM single harmonics liSt aeo ne Leinen tte ee d
67. or blinks in red The measured values of the voltage and current are indicated as being overload values OL IM WT1801 01EN 2 13 2 Fundamental Measurement Conditions External Current Sensor Range Display Format DIRECT MEASURE option You can select the external current sensor range display format from the following options DIRECT direct input value display Values are displayed within the external current sensor range voltage This setting is useful when you want to set the external current sensor range using the voltage received by the WT1800 from the external current sensor as a guide MEASURE measurement range display The external current sensor range is divided by the external current sensor conversion ratio and the resulting current range is displayed This setting is useful when you want to set the external current sensor range using the current measured by the external current sensor as a guide For example if you are using a current sensor that produces 10 mV when it receives 1 A external current sensor conversion ratio 10 mV A and you set the external current sensor range to 1 V the displayed current range is 100 A Scaling SCALING You can set coefficients for when you apply a voltage or current signal from an external VT voltage transformer or CT current transformer Turning Scaling On and Off Scaling You can select whether to apply the VT ratio CT ratio and power coefficient to appli
68. phase relative to the voltage of each element Set the display format to one of the options below 180 degrees If the current phase is in the counterclockwise direction with respect to voltage the current is leading D the voltage If the current phase is in the clockwise direction with respect to the voltage the current is lagging G the voltage The phase difference is expressed by an angle between 0 and 180 see appendix 2 in the getting started guide IM WT1801 03EN 360 degrees The phase difference is expressed as an angle between 0 and 360 in the clockwise direction Li Ifthe measured voltage or current value is zero Error is displayed When both the voltage and current signals are sinusoidal waves and the ratios of the voltage and current inputs with respect to the measurement range do not differ greatly the phase difference lead and lag are still detected and displayed correctly If the computation result of power factor A exceeds 1 is displayed as follows Ifthe power factor A is greater than 1 and less than or equal to 2 returns 0 f Ais greater than 2 returns an error Error is displayed On models with the harmonic measurement option the phase differences PU and OI of harmonic orders 1 to 500 of the voltage and current are always displayed using an angle between 0 and 180 no sign for lead and negative sign for lag Master Slave Synchronization Measurement Sync Measure Con
69. power equations Formula Sampling frequency Sampling Frequency Phase difference display format Phase Master slave synchronization measurement Sync Measure Voltages or currents whose frequencies will be measured FREQ MEASURE User Defined Functions User Defined Function You can combine function symbols to create equations and use the numeric data of the combined functions to determine the value of the equation It is convenient to use a USB keyboard when entering multiple equations or particularly long equations Lu User defined functions allow you to determine physical values other than those of the measurement functions by combining operands The measurement functions that you can specify for the efficiency equation are fixed at power and motor output However by using user defined functions you can create equations consisting of measurement functions other than power and motor output measurement functions to determine ratios other than efficiency Selecting Which User Defined Function to Configure Select the number of the user defined function that you want to configure from the options below User Defined F01 to F05 User defined functions F1 to F5 User Defined F06 to F10 User defined functions F6 to F10 User Defined F11 to F15 User defined functions F11 to F15 User Defined F16 to F20 User defined functions F16 to F20 Turning the Computation of a User Defined Function On or Off Selecting Whether to C
70. result are held Integration continues regardless of whether the display is held Releasing the Hold on Integration If you press the HOLD key when integration is held the HOLD key light turns off and the numeric data display is updated While the display is held you can update the display by pressing SINGLE to execute a single measurement The relationship between the hold function and the start and stop operations is as follows If you start integration while the display is held the display and communication output do not change When you release the hold function turn it off or make a single measurement by pressing SINGLE the integration result at that point is displayed and transmitted ON HOLD OFF Displayed value The dotted line is the integrated value Integration time i Start Stop Reset If you stop integration while the display is held the displayed and transmitted values do not change When you release the hold function turn it off or make a single measurement by pressing SINGLE the integration result at the point when integration was stopped is displayed and transmitted ON HOLD SINGLE p Single measurement Execution Execution Execution Y Displayed value _ The dotted line is the integrated value Integration time Start Sto 9 6 IM WT1801 01EN 9 Integrated Power Watt hours I
71. storage mode When the Storage Mode Is Not Set to Integ Sync Storage is performed according to the storage interval Time s 0 5 10 15 20 25 30 35 Data RR RR R8 5 update Time s 0 7 14 21 28 35 ee Storage A A A A When the Storage Mode Is Integ Sync and the Integration Mode Is Not Continuous or R Continuous Storage is performed at the first data update after the storage interval passes Time s 0 5 10 15 20 25 30 35 Data IEEE NER NE NE GERE EE update Time s 0 7 5 44 24 28 35 Storage Ab EE EE GM ee NN VT A NE d A IM WT1801 01EN 17 9 17 Data Storage When the Storage Mode Is Integ Sync and the Integration Mode Is Continuous or R Continuous Storage is performed at the first data update after the storage interval passes Storage continues even when integration is reset by the integration timer When the integration timer is reset the storage interval timer is also reset The figure below is an example for when the integration timer is set to 20 s Time s 0 5 15 20 5 10 15 10 gt Man t To xe eT Xo 4 pdate Time s o 7 14 20 pop WA ou Storage A Ak A AK AR V A V A Li When the storage of numeric data at store start Store At Start is enabled storage starts when the time is at 0 s store start Storage is performed when the integration mode is continuous integration mode or real time continuous integration mode the integration time
72. storage mode is real time storage mode integration synchronized storage mode or event synchronized storage mode and the WT1800 is ready to begin storing Cmpl Complete The WT1800 has completed the specified number of storage operations The WT1800 is in real time storage mode and the scheduled storage stop time has passed When storage is reset no storage state is displayed in the upper left of the screen Limitations on Changing the Settings during Storage While data is being stored there are some settings that you cannot change and functions that you cannot execute For details see appendix 9 in the getting started guide IM WT1801 03EN Storage Conditions STORE SET The following storage configuration menus are available Storage control Control Settings Stored items Item Settings Save conditions File Settings IM WT1801 01EN 17 1 17 Data Storage Storage Control Control Settings Storage Mode Store Mode You can choose from one of the following methods for starting and stopping storage Manual Manual storage mode When you press STORE START numeric data is stored at the storage interval for the number of times specified by the storage count Real Time Real time storage mode Storage starts after you press STORE START and the scheduled storage start time is reached You can store numeric data at the storage interval until the storage stop time or just the storage count is reached Integ
73. that you are currently configuring For example when you are configuring the conditions of user defined event Ev3 you can select Ev1 or Ev2 AND OR END Specification Boxes AND and OR To use multiple user defined events to configure a condition set the method of combining the events to logical AND or logical OR When you select AND or OR an event specification box appears to the right of the AND OR END specification box The number of user defined events that you can combine is indicated below When you reach the maximum number of combinable user defined events no AND OR END specification box appears to the right of the last event Ev1 0 You cannot use other user defined events as conditions Set the judgment condition using a range Ev2 1 Ev1 Ev3 2 Ev1 and Ev2 Ev4 3 Ev1 to Ev3 Ev5 4 Ev1 to Ev4 Ev6 5 Ev1 to Ev5 Ev7 6 Ev1 to Ev6 Ev8 7 Ev1 to Ev7 END Select END to end the definition of the condition No event specification box appears to the right of an AND OR END specification box that has been set to END Li If you set the event judgment condition to a range and the function of the judgment condition returns a value of no data because judgment cannot be performed the judgment result is FALSE For example when integration is not being performed if the function of event Ev1 is set to integrated power WP and the judgment condition is WH E1 gt 0 the measured data is displayed as
74. the data for the measurement functions on the page of the 16 value display that would appear is stored Li During storage even if you change the numeric data display format or the displayed items the data is stored according to the numeric data that was displayed at store start Selected Items Selected Items You can select the types of numeric data to store To select which types of numeric data to store click Items Items Items If you set the numeric data items to store to Selected Items you can select which types of numeric data to store Element Element To select an element or wiring unit that you want to store the data of select or clear its check box You can select from the following options Element1 Element2 Element3 Element4 Element5 Element6 2A 2B and 2C Function Function Select whether to store the data of a function by selecting or clearing its check box You can select any of the measurement function types listed under Items That This Instrument Can Measure gt Click here Selecting All Functions All ON The data of all measurement functions is stored Deselecting All Functions All OFF None of the data for any of the measurement functions is stored Preset 1 Preset 1 The data of the following measurement functions is stored for all elements and wiring units Urms Irms FreqU Freql P S Q A and Preset 2 Preset 2 The data of the following measurement functions is stored f
75. the elements and wiring units is displayed in nine columns If you select ON when the total number of elements and wiring units is six or less the display is the same as when OFF is selected Turning the Display Frame On and Off Display Frame This is the same as turning the display frame on and off in the 4 8 and 16 value displays P Click here 7 8 IM WT1801 01EN 7 Numeric Data Display Single Harmonics and Dual Harmonics Lists Hrm List Single Dual option For each measurement function you can display the numeric data for a harmonic order from 0 DC to 500 or for all harmonic orders in two columns This item is available on models with the harmonic measurement option or the simultaneous dual harmonic measurement option Item Number to Set List Item No You can specify two lists to show in the harmonic order data display area the right side of the screen Select the number 1 or 2 of the list that you want to select When Hrm List Single is selected the data of List Item No1 is listed in two columns When Hrm List Dual is selected the data of List Item No1 is listed in one column and the data of List ItemNo2 is listed in another column You cannot change individual items in the measurement function display area the left side of the screen Change the display by pressing PAGE UP and PAGE DOWN or the up and down cursor keys Function Function Select the measurement function to show in the har
76. the following integration modes Manual integration mode Real time normal integration mode when the integration timer is set to 00000 00 00 e In the following integration modes the rated time for integrated D A output is set to the same time that the timer is set to Normal integration mode Continuous integration mode Real time normal integration mode when the integration timer is not set to 00000 00 00 Real time continuous integration mode Li When the rated time for integrated D A output is set to 00000 00 00 the D A output for the integrated value is fixed at 0 V 9 12 IM WT1801 01EN 10 Waveform Display Waveform Display WAVE You can press WAVE to make the waveform displays of the following types of input signals Input element voltage and current Motor evaluation function option speed and torque Auxiliary inputs option Aux1 and Aux2 Each time you press WAVE the number of split screens switches in order between none 2 3 4 and 6 Waveform Display Example Scale Value The measurement function the element number and the upper limit of the displayed waveform Waveform label 1 UT 3 000 Ta Trigger level _ y 3 Ground level Ut 3 000kV 0 000s lt lt 1602 p p gt gt 50 000ms Time at the left edge Time at the right edge of the screen of the screen fixed at 0 seconds amount of time contained in the screen The number of data points between the
77. voltage signals or pulse signals from the revolution sensor and torque meter Also you can set the number of motor poles and determine the motor s synchronous speed and slip Furthermore you can use the active power frequency and motor output measured by the WT1800 to compute the motor efficiency and total efficiency For a list of the measurement functions that can be measured with the motor evaluation feature and their descriptions see Motor Evaluation Functions under Items That This Instrument Can Measure gt Click here Models with the Auxiliary Input Option The Aux Settings dialog box appears P Click here Motor Evaluation Settings You can configure the following motor evaluation settings Scaling factor Scaling Unit Unit Input signal type Sense Type Analog input range Linear scaling of analog input Line Filter Line Filter Synchronization Source Sync Source Pulse input range Torque signal pulse rating Revolution signal pulses per revolution Pulse N Motor poles Pole Frequency measurement source Source Electrical angle measurement Electrical Angle Measurement Motor efficiency and total efficiency computation This item is available on models with the harmonic measurement option or the simultaneous dual harmonic measurement option Scaling Factor Scaling Setting the Scaling Factor for Scaling the Revolution Signal You can set the factor for scaling the revol
78. 0000000 710094 Li When you want to zoom in on part of a waveform we recommend that you take the steps below 1 Set the zoom factor to 1 2 Following the instructions in this section for shifting a waveform s vertical position shift the part of the waveform that you want to view to the center of the display 3 Set the vertical zoom factor IM WT1801 01EN 10 9 11 Trend Display Other Displays OTHERS You can press OTHERS to make the following displays appear Trend display Trend Bargraph display Bar Vector display Vector Split display with the numeric value display Numeric Split display with the waveform display Wave Split display with the trend display Trend High speed data capturing High Speed Data Capturing Each time you press OTHER the display switches in order between the trend display the bar graph display option the vector display option and the split display the split display that you set previously nthe default split display setting the numeric value display and waveform display are shown Trend Display Trend You can display the trends of measurement functions Trend Display Example Scale Value The trend number measurement function element and upper limit of the displayed trend When the display is held trend values behave the same as numeric values When the display is un held the trend data from when the display was held appears
79. 2 3 J 4 3P4W or 3P3W 3V3A 2B 1P3W or 3P3W 2B 1P2W 5 1P2W 1P2W 1P2W 1P2W 1P2W 1 em 1P3W or 3P3W 2A 1P3W or 3P3W 2B 1P3W or 3P3W 2C 1P3W or 3P3W 2A 3P4W or 3P3W 2A 1P3W or 3P3W 2B 1P2W 3P4W or 3P3W 2A 3P4W or 3P3W 3V3A 2B o 3P4W or 3P3W 3V3A 2B 1P2W Select the wiring system to match the actual wiring of the circuit under measurement The method in which the functions wiring unit measurement functions are determined varies depending on the wiring system If the selected wiring system does not match the wiring of the actual circuit measurements and computation will not be correct Wiring System Display The wiring system configuration is displayed on the right side of the screen Because it is displayed behind the menu to view it you need to press the ESC key to hide the menu The figure below shows wiring system display examples for a model with six input elements installed When the wiring system of elements 1 2 When the wiring systems of elements 1 to 6 are set to single phase two wire Element 1 sei three phase three wire Ui 1000V 1 50A Ui 1000V Sync Src 1 50A Syne Src Element 2 pei U2 1000V MC ps YDG OTs Sync Src r1 Element 3 peng U3 1000V U3 1000V 3 50A 3 50A Sync Srcz I3 Sync Src Element 4 B
80. 21 Ethernet Communication Network TCP IP TCP IP Configure the settings that the WT1800 needs to connect to a network DHCP DHCP is a protocol that temporarily allocates settings that a PC needs to connect to the Internet To connect to a network that has a DHCP server turn the DHCP setting on When DHCP is turned on the IP address can be automatically obtained when the WT1800 is connected to a network You do not have to set it manually When DHCP is turned off you must set the appropriate IP address subnet mask and default gateway for the network DNS DNS is a system used to associate Internet host names and domain names with IP addresses Given AAA BBBBB com AAA is the host name and BBBBB com is the domain name You can use host names and domain names to access the network instead of using IP addresses which are just numbers The WT1800 allows you to specify the host by name instead of by IP address Set the domain name and the DNS server address 0 0 0 0 by default For details consult your network administrator DNS Servers DNS Server1 DNS Server2 You can specify up to two DNS server addresses primary and secondary If querying fails with the primary DNS server the secondary DNS server is automatically used to find the mapping of the host name and domain name to the IP address Domain Suffixes Domain Suffix1 Domain Suffix2 The domain suffix is a piece of information that is automatically added when a query i
81. 800 has begun recording to a file and while the WT 1800 is regularly recording data The name of the file that is being recorded to appears to the right of Name Rec High Speed Dalja Capturing File State Name HSdata001 File name Stop Stop appears when the WT 1800 has finished recording to a file and when recording to a file is stopped Error When a write error occurs while the WT1800 is recording to a file the WT1800 stops recording to the file and Error appears The measurement operations for high speed data capturing continue without stopping Initializing High Speed Data Capturing High speed data capturing is initialized when You switch from normal measurement to high speed data capturing You change one of the following settings A voltage or current measurement mode Whether the HS filter is on or off The HS filter s cutoff frequency Trigger Fundamental measurement conditions such as the measurement range and wiring system The time required for initialization is as indicated below For example when the cutoff frequency is 1 Hz the time required for initialization is approximately 2 7 s 2 7 The HS filter s cutoff frequency s However when the above formula results in a value of 250 ms or less the time required for initialization is 250 ms Measurement Functions For the symbols and meanings of the measurement functions that you can measure using high speed data capturing se
82. Data update interval Tpe Time it takes to print Printing PRINT Prints the screen image data or numeric data list Using an External Signal to Control Printing Option On models with the 20 channel D A output option you can use the remote control feature to print data For details about the remote control feature see appendix 4 6 in the getting started guide IM WT1801 03EN 20 6 IM WT1801 01EN 21 Ethernet Communication Network You can configure TCP IP parameters and use the optional Ethernet interface to perform the following tasks TCP IP TCP IP settings for connecting to an Ethernet network Set the IP address subnet mask and default gateway P Click here FTP Server FTP Server You can connect the WT 1800 as an FTP server to a network You can connect to the WT1800 from a PC on the same network and retrieve setup data numeric data waveform display data and screen image data P Click here Network Drive Net Drive You can save the WT1800 s setup data numeric data waveform display data and screen image data to a network drive You can also load the setup data from a network drive into the WT1800 gt Click here SNTP The WT1800 clock can be set using SNTP When the WT1800 is turned on the date and time are set automatically P Click here Li To connect a PC to the WT1800 use a hub or router and connect to a network Do not connect a PC directly to the WT1800 IM WT1801 01EN
83. FI n and U I MODE U I P S Q A WP q TIME and FU Fl n Each time you press U I P the selected function switches in order between U I and P The same is true for S Q N WP q TIME and FU FI n U I MODE Each time you press the key measurement function U or switches in order between rms mean dc rmean and ac IM WT1801 01EN 7 5 7 Numeric Data Display Element Element 2 e You can select the element wiring unit from the options below The available options vary depending on the installed elements Element1 Element2 Element3 Element4 Element5 Element6 2A 2B and C If the selected wiring unit does not have any elements assigned to it because there is no data no data is displayed For example if elements are assigned to 2A but not to 2B the measurement function for 2B is displayed as no data Directly Selecting Elements ELEMENT When the menu is not displayed you can change the element number of the selected measurement function by pressing ELEMENT Changing Elements Simultaneously ALL You can change the elements and wiring units of all displayed items at once The ALL indicator illuminates Order Order option When you select a function that has harmonic data you can set the displayed harmonic order within the following range Total Total value or 0 dc to 500 The orders that can be specified vary depending on the measurement function For details s
84. FREQ MEASURE the Freq Items menu will not appear o If frequency measurements are unstable because of noise try using the frequency filter The period cannot be detected if the AC amplitude is small For information about detectable frequency levels see the conditions listed in Frequency Measurement and Accuracy in chapter 6 of the getting started guide IM WT1801 03EN The measured data for the frequencies of voltages and currents whose frequencies are not measured is displayed as no data IM WT1801 01EN 8 11 9 Integrated Power Watt hours The WT1800 can integrate the active power watt hour the current ampere hour the apparent power volt ampere hour and the reactive power var hour values For a list of the measurement functions related to integrated power watt hours and their descriptions see Items That This Instrument Can Measure gt Click here You can set the following items Enabling or Disabling Independent Integration Independent Control Independently integrated elements Element Object Starting Stopping and Resetting Integration Start Stop Reset Integration Conditions Integ Set Integration Related Display Indications Normal Mode Integ Reset YOKOGAWA Scaling Line Filter Time p Put 15 000 Hz AVG Freq Filter PLL2 15 000 Hz Integration status Reset Displayed when the integrated value is reset and integration can be star
85. Filter Line Filter You can remove high frequency noise by inserting a line filter into the circuit used to measure the Aux1 and Aux2 auxiliary inputs You can select the cutoff frequency from the following options OFF 100 Hz and 1 kHz Selecting OFF disables the filter IM WT1801 01EN 5 3 6 Holding Measured Values and Performing Single Measurements Holding Measured Values HOLD The hold operation stops data measurement and display operations for each data update interval and holds the display of all measurement function data The D A output values the values in the data lists printed by the built in printer and the communication values all reflect the held values Li For information about how holding works during integration see the sections on holding and releasing integration P Click here Single Measurement SINGLE While the display is held the signal is measured once at the data update interval and then the display is re held If you press SINGLE when the display is not held measurement restarts from that point Using an External Signal to Hold Measured Values and Perform Single Measurements Option On models with the 20 channel D A output option you can use the remote control feature to hold measured values and perform single measurements For details about the remote control feature see appendix 4 6 in the getting started guide IM WT1801 03EN IM WT1801 01EN 6 1 7 Numeric Data Display
86. Function You can select the measurement function to display from the following options U I P S Q A 6 OU OI Z Rs Xs Rp and Xp Element Element You can select the element from the following options The available options vary depending on the installed elements Element1 Element2 Element3 Element4 Element5 and Element6 Bar Graph Display Scale Setting the Vertical Scale Mode Scale Mode You can set the upper and lower limits of a bar graph window Set the display mode to one of the options below Fixed When the function is U I P S or Q the scaling is logarithmic Log When the function is A OU Ol Z Rs Xs Rp or Xp the scaling is linear Linear The upper and lower limits of the bar graph window are automatically determined based on the maximum and minimum displayed trend data values The lower and upper limits for A are 1 and 1 For QU and OI the minimum and maximum values are 180 to 180 Negative values correspond to phase lagging and positive values correspond to phase leading Manual You can set the type upper limit and X axis position of the vertical scale Vertical Scale Type Vertical Scale This setting is valid when the vertical scale mode is set to Manual You can set the scale type to linear Linear or logarithmic Log Upper Limit Upper Scale This setting is valid when the vertical scale mode is set to Manual You can set the upper limit to a value from 0 to 9 999 T
87. Numeric Data Display NUMERIC You can press NUMERIC to make the numeric data display appear Each time you press NUMERIC the display format switches in order between 4 Items 8 Items 16 Items Matrix All Items Hrm List Single Hrm List Dual and Custom Display Format FORM The display format options vary depending on the current display Numeric data display format Waveform display format Trend display format Bargraph display format Vector display format Setup parameter list display format High speed data capturing settings Numeric Data Display Format You can select the number of numeric data items that are displayed simultaneously from the choices below or choose to display a list of items 4 Value Display 4 Items Four numeric data values are displayed in one column 8 Value Display 8 Items When the display mode is Numeric eight numeric data values are displayed in one column When the display is split eight numeric data values are displayed in two columns 16 Value Display 16 Items Sixteen numeric data values are displayed in two columns Matrix Matrix and All All Items Displays A table of numeric data is displayed with measurement functions listed vertically and symbols indicating elements and wiring units listed horizontally The number of displayed items varies depending on the number of elements that are installed in the WT1800 IM WT1801 01EN 7 1 7 Numeric Data Display S
88. P client sets the port number for data transfer Enable passive mode when you have set an external FTP server as a network drive or when you are accessing an FTP server through a firewall Timeout Time Out If the WT1800 cannot transfer files for a certain amount of time it disconnects from the FTP server You can set the timeout time to a value between 1 and 3600 Connecting to the Network Drive Connect Disconnect When you press Connect the WT1800 connects to the specified network drive When you press Disconnect the network drive is disconnected 21 4 IM WT1801 01EN 21 Ethernet Communication Network SNTP SNTP The WT1800 clock can be set using Simple Network Time Protocol SNTP When the WT1800 is turned on the date and time are set automatically SNTP Server SNTP Server Specify the IP address of the SNTP server that the WT1800 will use In a network with a DNS server you can specify the host name and domain name instead of the IP address Timeout Time Out If the WT1800 cannot connect to the SNTP server for a certain amount of time it aborts the operation You can set the timeout time to a value between 1 and 60 Executing Time Adjustment Adjust The WT1800 clock is synchronized to the SNTP server clock Automatic Adjustment Adjust at Power ON You can configure the WT 1800 so that its clock is automatically synchronized to the SNTP server clock when the WT1800 is turned on when it is connected to the net
89. ULLE Feature NULL SET rer et rut eat ee ent seve ctae p expo ctae gaz teneas reae eus 23 1 Enabling and Disabling the NULL Feature NULL 23 3 Clearing Remote Mode EOGCAL 2 cniin rai ete denied cha tni sae tpa aae rend iniri Re 23 3 Key Lock KEY LOGUK eite iiri te rte ti pta gab ende tyes seluveess 23 3 vi IM WT1801 01EN 1 Items That This Instrument Can Measure The items that you can measure with this instrument are listed below For details about how the values of the measurement functions are determined see appendix 1 in the getting started guide IM WT1801 03EN For explanations of the terms measurement function input element and wiring unit see What Is a Measurement Function P Click here The input elements and wiring units referred to in each measurement function table are listed below However the input elements and wiring units that you can measure vary depending on how many input elements are installed in the WT 1800 Input elements Wiring units ZA 2B ZC Element1 Element2 Element3 Element4 Element5 Element6 Measurement Functions Used in Normal Measurement Voltage Function Description Input Element Wiring Unit Urms True rms voltage Yes Yes Umn Rectified mean voltage calibrated to Yes Yes the rms value Udc Simple voltage average Yes Yes Urmn Rectified mean voltage Yes Yes Uac AC voltage component Yes Yes U pk Maximum voltage Yes No U pk Minimum volt
90. WT1800 Precision Power Analyzer USER S MANUAL Features Guide YOKOGAWA 4 Yokogawa Meters amp Instruments Corporation IM WT1801 01EN 2nd Edition Thank you for purchasing the WT1800 Precision Power Analyzer This manual contains useful information about the features of the WT 1800 To ensure correct use please read this manual thoroughly before beginning operation After reading the manual keep it in a convenient location for quick reference whenever a question arises during operation The following manuals including this one are provided as manuals for the WT1800 Please read all the manuals Manual Title Manual No Description WT1800 Precision Power Analyzer IM WT1801 01EN This manual The supplied CD contains the PDF Features Guide file of this manual This manual explains all the WT1800 features other than the communication interface features WT1800 Precision Power Analyzer IM WT1801 02EN The supplied CD contains the PDF file of this User s Manual manual The manual explains how to operate the WT1800 WT1800 Precision Power Analyzer IM WT1801 03EN The manual explains the handling precautions and Getting Started Guide basic operations of the WT1800 and provides an overview of its features WT1800 Precision Power Analyzer IM WT1801 17EN The supplied CD contains the PDF file of this Communication Interface manual The manual explains the WT1800 series User s Manual communication interface features and
91. Windows Format You can choose the number of windows from one of the following options Single No windows The data of bar graph Item No 1 is displayed Dual Two windows The data of bar graphs Item No 1 and 2 is displayed Triad Three windows The data of bar graphs Item No 1 to 3 is displayed IM WT1801 01EN 12 1 12 Bar Graph Display Option Bar Graph Display Range Start Order End Order You can configure the range of harmonic orders to show in a bar graph The range is the same for bar graphs 1 to 3 Starting Harmonic Order Start Order You can select a value between 0 and 490 However the starting harmonic order cannot be more than 10 orders less than the ending order When the measurement function of a bar graph is order 0 has no values so you cannot display it in the bar graph When the measurement function of a bar graph is MU or Ol orders 0 and 1 have no values so you cannot display them in the bar graph Ending Harmonic Order End Order You can select a value between 10 and 500 However the ending harmonic order cannot be more than 10 orders greater than the starting order You cannot display bar graphs containing harmonic orders that are greater than the maximum measurable order see section 6 6 in the getting started guide IM WT1801 03EN Display Item ITEM Bar Graph Number Item No Select the number from 1 to 3 of the bar graph that you want to select Function
92. ach harmonic An anti aliasing filter is used to prevent aliasing and eliminate high frequency components that are irrelevant to the harmonic measurement For example when an input signal with a fundamental frequency of 50 Hz is measured up to the 50th order the frequency of the 50th order is 2 5 kHz Thus a 5 kHz anti aliasing filter is used to eliminate high frequency components that are greater than or equal to approximately 5 kHz which are irrelevant to harmonic measurement The WT1800 uses the line filter as an anti aliasing filter for harmonic measurements For information about how to configure the filter see Line Filter LINE FILTER gt Click here The accuracy and the upper limit of the measurement bandwidth change when the anti aliasing filter line filter is turned ON For details see appendix 6 6 in the getting started guide IM WT1801 03EN IM WT1801 01EN 4 Motor Evaluation Conditions Option Motor Evaluation Conditions and Auxiliary Input Conditions MOTOR AUX SET Press MOTOR AUX SET to display a setup dialog box for the installed option Models with the Motor Evaluation Option The MOTOR Settings dialog box appears The WT1800 can determine the motor rotating speed torque and output It determines them using the revolution sensor signal which is proportional to the motor rotating speed and the torque meter signal which is proportional to the motor torque You can configure the WT1800 to receive analog DC
93. active power of element 1 set the equation of a user defined function as follows WH E1 TI E1 3600 The unit of TI values is seconds MAX Hold Max Hold Selecting Whether to Hold the Maximum Numeric Value MAX value You can determine the measurement functions whose maximum values will be held using a user defined function The different types of operands are listed below measurement function operand Urms URMSMAX Irms IRMSMAX P PMAX Umn UMEANMAX Imn IMEANMAX S SMAX Udc UDCMAX Idc IDCMAX Q QMAX Urmn URMEANMAX Irmn IRMEANMAX Uac UACMAX lac IACMAX U pk UPPEAKMAX I pk IPPEAKMAX P pk PPPEAKMAX U pk UMPEAKMAX l pk IMPEAKMAX P pk PMPEAKMAX To hold the maximum value of the Urms for element 1 enter URMSMAX E1 in the equation for a user defined function and enable MAX hold For information about the parameters that you can use with each operand see appendix 6 in the getting started guide IM WT1801 03EN The maximum values of the data above are held while the MAX hold function is enabled The D A output values the values in the data lists printed by the built in printer and the communication values all reflect the held maximum values Lu When MAX hold is applied to measurement functions that have positive and negative values the WT1800 compares the absolute values to determine the maximum value Toreset held maximum values turn MAX ho
94. age Yes No CfU Voltage crest factor Yes No Current Function Description Input Element Wiring Unit Irms True rms current Yes Yes Imn Rectified mean current calibrated to the Yes Yes rms value Idc Simple current average Yes Yes Irmn Rectified mean current Yes Yes lac AC current component Yes Yes l pk Maximum current Yes No I pk Minimum current Yes No Cfl Current crest factor Yes No Power Function Description Input Element Wiring Unit P Active power Yes Yes S Apparent power Yes Yes Q Reactive power Yes Yes Power factor Yes Yes o Phase difference Yes Yes Pc Corrected Power Yes Yes P pk Maximum power Yes No P pk Minimum power Yes No Frequency Function Description Input Element Wiring Unit fU Voltage frequency Yes No fl Current frequency Yes No fPLL1 Frequency of PLL11 No No fPLL2 Frequency of PLL2 No No 1 On models with the harmonic measurement option or the simultaneous dual harmonic measurement option 2 Only on models with the simultaneous dual harmonic measurement option IM WT1801 01EN 1 1 1 Items That This Instrument Can Measure Integrated Power Watt hours Function Time WP qt q WS WQ Efficiency Function n1 to n4 Description Integration time Sum of positive and negative watt hours Sum of positive P values Sum of negative P values Sum of positive and negative ampere hours Sum of positive values Sum of negative values Volt ampere hours Var hours
95. ally create an ASCII format stored data file csv from the stored data file wts and the header file hds that are saved when storage finishes or is reset When the storage destination is the internal RAM disk RAM 0 A CSV file is created in the root folder of the USB memory device whose ID number is 0 USB 0 When the storage destination is a USB memory device USB 0 or USB 1 A CSV file is saved in the same folder as the stored data file Automatic File Naming Auto Naming This is the same as the auto naming feature for saving and loading data P Click here File Name File Name This is the same as the file name setting for saving and loading data P Click here Comment Comment This is the same as the comment setting for saving and loading data P Click here Manually Converting to CSV Format CSV Convert You can convert the selected stored data to ASCII format csv This menu item appears when you press File List to display the file list When you convert stored data on the internal RAM disk RAM 0 A CSV file is created in the root folder of the USB memory device whose ID number is 0 USB 0 When you convert stored data on a USB memory device USB 0 or USB 1 A CSV file is saved in the same folder as the stored data file you are converting IM WT1801 01EN 17 5 17 Data Storage Li Data storage may fail under the following circumstances When this happens an asterisk appears in the
96. alue rms value is less than 60 of the measurement range If the minimum effective input 1 of the measurement range is being applied when CF is set to 3 measurement for CF 300 is possible The voltage range current range effective input range and measurement accuracy vary depending on the crest factor setting For details see chapter 6 in the getting started guide IM WT1801 03EN Li When you change the crest factor the following settings change for all elements All elements are automatically set to their maximum voltage and current ranges Inthe valid measurement range settings all measurement ranges are enabled selected Ifthe crest factor is set to CF6 the measurement conditions of crest factor 5 and higher required by IEC62018 are met When measuring waveforms whose crest factor is less than or equal to CF3 you can achieve more accurate measurements by setting the crest factor to 3 IM WT1801 01EN 2 17 2 Fundamental Measurement Conditions Measurement Period SYNC SOURCE Measurement Period for Measurement Functions Used in Normal Measurement The measurement period is determined by the input signal that is used as the reference synchronization source The measurement period is set within the data update interval between the first point where the sync Source crosses the level zero point center of the amplitude on a rising slope or falling slope and the last point where the sync source crosses t
97. an error message appears 1P3W Single phase three wire system 3P3W Three phase three wire system IM WT1801 01EN 16 3 16 High Speed Data Capturing Line Filter for High Speed Data Capturing You can also set a line filter for high speed data capturing The setting is not shared with normal measurement Even if you change the line filter setting during high speed data capturing the line filter setting for normal measurement will remain unchanged In high speed data capturing the line filter is always on You cannot select OFF The LINE FILTER key and the Line Filter indicator at the top of the screen illuminate You can set the cutoff frequency within the following range For normal measurement you can select 1 MHz but you cannot select 1 MHz for high speed data capturing 0 1 kHz to 100 0 kHz in 0 1 kHz steps 300 kHz Limitations on Setting Changes during High Speed Data Capturing During high speed data capturing there are some settings that you cannot change and functions that you cannot execute For details see appendix 10 in the getting started guide IM WT1801 03EN High Speed Data Capturing HS Settings FORM The high speed data capturing HS settings are listed below Number of data captures Capture Count Viewing and optimizing the maximum capturing count Optimize Count Capture control settings Control Settings Recording to a file Record to File Starting and stopping high speed data capturing St
98. an perform the following tests Memory Test Memory You can test the internal memory to determine whether it is functioning normally If Pass is displayed it is functioning normally If an error occurs Failed appears After the test is completed Test Completed appears Key Test Key Board Tests whether or not the front panel keys are operating properly If the name of the key that you press is displayed the key is operating properly If the indicators on the front panel turn on and off in order when you press the left and right cursor keys they are operating properly To exit the key test press ESC twice Keyboard Test Soft Key This test appears when you set Test Item to Key Board You can test whether the keyboard displayed on the screen is functioning properly If the characters that you type appear correctly in the keyboard s input box the keyboard is functioning properly Executing a Test Test Exec The selected self test starts If an Error Occurs during a Self Test If an error occurs even after you perform self tests numerous times contact your nearest YOKOGAWA dealer IM WT1801 01EN 22 11 23 Other Features You can set the following items Zero level compensation CAL NULL feature NULL SET Enabling and Disabling the NULL Feature NULL Clearing Remote Mode LOCAL Keylock KEY LOCK Zero Level Compensation CAL Zero level compensation is the process of creating a zero in
99. an select the D A output range mode from the following options Fixed Fixed range mode When a measurement function s rated value is received 5 V is output For details see Relationship between Output Items and the D A Output Voltage P Click here Manual Manual range mode You can set which measurement function values result in a D A output of 5 V and which result in a D A output of 5 V By doing so you can enlarge or reduce zoom the D A output of each channel For example if you are measuring a current that fluctuates between 0 6 A and 0 8 A with a measurement range of 1 A when the D A output range mode is Fixed the D A output voltage will fluctuate between 3 0 V and 4 0 V When you want to observe the fluctuations more closely you can use the D A zoom feature If you set the D A output range mode to Manual and set the minimum value to 0 6 and the maximum value to 0 8 the WT1800 will produce 5 V when the measured current value is 0 6 A and 5 V when the measured current value is 0 8 A 22 8 IM WT1801 01EN 22 Utility Fixed range mode Measured current A 1 0A 0 8A Y Maximum Max and Minimum Min Range Values 5 0V 4 0 V 3 0 V Time 5 0V D A output D A output 4 4 5 0 V Manual range mode DA zoom gt Time When the range mode is Manual you can set the maximum Max and minimum Min values within the following range 9 999 T to 9 999 T
100. and wiring units WP WP WP q q q Time WS and WQ If the wiring system setting Wiring is configured so that a wiring unit does not exist the data for the functions of that wiring unit is not saved For example if ZC does not exist the data for 2C is not saved IM WT1801 01EN 18 3 18 Saving and Loading Data Automatic File Naming Auto Naming Numbering Numbering The WT1800 automatically adds a four digit number from 0000 to 0999 after the common name specified using the File Name setting and saves files Date Date The date and time when the file is saved are used as its name The file name specified for the File Name setting is ignored 20100630 121530 0 2010 06 30 12 15 30 Year Sequence number 0 to 9 then A to Z for when multiple files Month are saved at the same time second Day Hour Minute Second A sequence number is appended to the date and time when multiple files are saved at the same time second The number starts at 0 and is incremented by one each time a file is added The number 9 is followed by letters of the alphabet OFF Disables the auto naming feature The name that you specify using the File Name setting is used If there is a file with the same name in the save destination folder you cannot save the data Save Destination Folder for Storage Caused by User Defined Events In the drive specified in the Store Set menu a folder is automatically created with the date yea
101. are held The integration time reaches the maximum integration time 10000 hours The integrated value of WP q WS or WQ reaches the maximum or minimum displayable value given above Integration When the MAX Hold Feature Is Enabled The WT1800 determines and displays the integrated value by summing the value that is measured at every data update interval irrespective of the MAX hold feature Integration When the Measured Value Exceeds the Measurement Limit If a sampled instantaneous current or voltage exceeds the maximum or minimum measurement range limits of the AD circuit the value is measured as the maximum or minimum measurement range limit value Integration When Current Input Is Small Integration is performed assuming a current of zero when the current input relative to the measurement range is as indicated below When the Crest Factor Is Set to CF3 When Irms or lac is 0 5 or less When Imn or Irmn is 2 or less When the Crest Factor Is Set to CF6 When Irms or lac is 1 0 or less When Imn or Irmn is 4 or less 9 2 IM WT1801 01EN 9 Integrated Power Watt hours Sample Rate and Valid Frequency Ranges for Integration The sample rate is approximately 2 MHz The voltage current signal frequencies that are valid for integration are as follows Integrated Item Valid Frequency Range for Integration Active power Current When integrating Irms When integrating Imn When integrating Idc When integrating Irmn
102. are displayed four data updates after the change Correct measured values may not be obtained immediately after the PLL source or its frequency changes because the PLL circuit inside the WT1800 redetects the frequency Measured Harmonic Orders Min Order Max Order The harmonic measurement range can be specified The harmonic orders specified here are used to determine the numeric data of the distortion factor P Click here Minimum Harmonic Order to Be Measured Min Order Select from the following 0 The Oth order DC component is included when numeric harmonic waveform data is determined 1 The Oth order DC component is not included when numeric harmonic waveform data is determined The harmonic measurement data the harmonic waveform data is determined from the 1st order the fundamental wave Maximum Harmonic Order to Be Measured Max Order You can select a value between 1 and 500 However the maximum measurable harmonic order is the smallest of the three orders listed below The specified maximum harmonic order to be measured The value determined automatically according to the PLL source frequency see section 6 6 in the getting started guide IM WT1801 03EN When the data update interval is 50 ms the maximum measurable harmonic order is 100 The numeric data corresponding to harmonic orders above the maximum measurable harmonic order is displayed as no data Li Ifthe minimum harmonic or
103. art Stop Number of Data Captures Capture Count The number of captures can be set to infinity or to a value from 1 to 10000000 Viewing and Optimizing the Maximum Capturing Count Optimize Co unt The WT1800 computes the maximum capturing count for the save destination of the captured data file according to the number of numeric data items specified in Item Settings You can set the capturing count to a value from 0 to the computed maximum capturing count If you select Set the maximum capturing count is set to the number of data captures However you cannot do this if the current number of data captures is O This setting is not valid when Record to File is set to OFF O f you enable automatic CSV conversion Auto CSV Conversion and set the storage destination for the high speed data capturing files to a USB memory device the maximum capturing count is computed with approximately 2096 of the available USB memory designated as valid for the high speed data capturing files WTS and HDS files When the maximum capturing count is displayed as 0 the save destination device for the high speed data capturing file does not have enough free space Make more space available by deleting files for example f you change the number of numeric data items specified in Item Settings after you set the number of data captures the maximum capturing count will change and you will need to set the number of data captures again
104. ary input option Select Press NULL to select the input signals that you want to enable hold or disable the NULL feature for Voltage U Al You can enable or disable the NULL feature for the voltage signals of all elements at the same time Ufto6 You can enable or disable the NULL feature for the voltage signals of each element separately Current I Al You can enable or disable the NULL feature for the current signals of all elements at the same time e l1to6 You can enable or disable the NULL feature for the current signals of each element separately Motor Motor All You can enable or disable the NULL feature for the Speed and Torque signals at the same time Speed Torque You can enable or disable the NULL feature for the Speed and Torque signals separately IM WT1801 01EN 23 1 23 Other Features Auxiliary Input Aux Al You can enable or disable the NULL feature for the Aux1 and Aux2 signals at the same time e Aux1 Aux2 You can enable or disable the NULL feature for the Aux1 and Aux2 signals separately NULL Status Status Enable or disable the NULL feature for each input signal ON When you press NULL the WT1800 sets or updates the NULL value Afterwards the NULL value is used to correct the measurement function values Hold The function of this key varies depending on whether the NULL value has yet to be set or has already been set When the NULL value has yet to be set When you press
105. asurement range and scaling VT CT ratio and coefficients of the elements that are undergoing delta computation as closely as possible Using different measurement ranges or scaling causes the measurement resolutions of the sampled data to be different This results in errors The numbers 1 2 and 3 that are attached to delta computation measurement function symbols have no relation to the element numbers The computation of all delta measurement functions from AU1 to AP varies depending on the wiring system and the delta computation type For details see appendix 1 in the getting started guide IM WT1801 03EN When only one element is installed in the WT1800 this feature cannot be used and its settings do not appear Delta computation cannot be performed on a single phase two wire 1P2W wiring system Selecting an Element Whose Measurement Range You Want to Specify ELEMENT Select an element whose measurement range you want to specify Press ELEMENT to switch in order between the indicators of the installed elements When independent input element configuration is off the selected elements will switch by wiring unit according to the wiring system 2 8 IM WT1801 01EN 2 Fundamental Measurement Conditions Selecting All Input Elements ALL At the same time you can select the currently selected element and all elements that meet the following conditions You can set their voltage and current ranges at the same time
106. ay White Dark Gray Blue Gray and Black IM WT1801 01EN 7 11 7 Numeric Data Display Saving the Display Configuration Save Custom Items You can save the display configuration that you have created to the specified storage medium The extension is TXT Displaying a File List and Specifying the Save Destination File List On the file list specify the save destination For information about how to configure the file list display and how to operate files and folders see File Operations Utility P Click here Automatic File Naming Auto Naming This is the same as the auto naming feature for saving and loading data P Click here File Name File Name This is the same as file name setting for saving and loading data gt Click here Saving Save Exec Saves the display configuration O Note that if there is a file with the same name in the save destination it will be overwritten without warning File names are not case sensitive Turning the Display Frame On and Off Display Frame This is the same as turning the display frame on and off in the 4 8 and 16 value displays P Click here 7 12 IM WT1801 01EN 8 Computation Computation MEASURE You can set the following items User defined functions User Defined Function Measuring the Average Active Power MAX hold Max Hold User defined events User Defined Event Apparent power reactive power and corrected
107. ay On and Off Scale Value You can select whether to display the following values for each waveform The upper and lower limits of the vertical axis The values at the left and right edges of the horizontal axis time axis Turning the Display of Waveform Labels On and Off Wave Label Select whether to display waveform labels IM WT1801 01EN 10 7 10 Waveform Display Waveform Mapping Wave Mapping Assignment Method Mode You can assign waveforms to windows on the screen Choose one of the following methods for assigning the waveforms to the windows Auto The waveforms whose displays are turned on are assigned in order according to their element numbers with an element s voltage waveform U coming first followed by its current I speed torque Aux1 and then Aux2 waveform Fixed Regardless of whether their displays are on or off waveforms are assigned in order according to their element numbers with an element s voltage waveform U coming before its current waveform I The speed and Aux1 waveforms appear in the top window 1 The torque and Aux2 waveforms appear in the second window from the top 2 User You can pick which waveforms to assign to which windows regardless of whether the waveform s displays are on or off You can set the display position to a number from 0 to 5 Number 0 corresponds to the window at the top of the screen and the window number increases for each successively lower window
108. being recorded to for recording to the file to stop and for the file recording state to change to Error When you perform consecutive operations in the setup menu When the WT1800 receives consecutive communication commands When you operate the WT1800 over FTP When you save to a USB memory device with a slow write speed When the write speed to the USB memory device that has been specified as the save destination is slow the data update speed exceeds the speed at which the file is being recorded to and recording to the file Stops you may be able to remedy the situation by using the methods described below Reduce the number of items that are being saved Using a faster USB memory device When it takes a long time for data to be written to the USB memory device recording to the file may be stopped forcefully and some data may not be saved When this happens the file state indication is Error Conversion to ASCII format csv uses a pair of files that consists of a high speed data capturing data file wts and a high speed data capturing header file hds with the same name Do not change the names of high speed data capturing data files wts and high speed data capturing header files hds for different sets of data to the same name If you do so the WT1800 may malfunction and the USB memory may be damaged when you convert the data to ASCII format csv f you disconnect a USB memory device while a file is being r
109. c data box Select the String menu item to enter the string Element Element Z This setting is valid when Function is not set to None This is the same as setting the element in the 4 8 and 16 value displays P Click here Order Order option This is the same as setting the order in the 4 8 and 16 value displays P Click here If you set Function to None instead of the Order menu item a menu item for entering a string String appears String String This menu item appears when you set Function to None Enter the character string to display in the numeric data box You can enter a string of up to 15 characters in length If you do not set Function to None instead of the String menu item the Order menu item appears X Display Position X Pos Set the position where the left edge of the numeric data box will appear on the screen to a value from 0 the left edge of the screen to 800 the right edge of the screen Y Display Position Y Pos Set the position where the top edge of the numeric data box will appear on the screen to a value from 0 the top of the screen to 671 the bottom of the screen Font Size Font Size Select the font size from the options below 14 16 20 24 32 48 64 96 and 128 Font Color Font Color Select the font color from the options below Yellow Green Magenta Cyan Red Orange Light Blue Purple Blue Pink Light Green Dark Blue Blue Green Salmon Pink Mid Green Gr
110. cable measurement functions When reading measured values directly by using a VT or CT or current sensor select ON When you select ON the SCALING key and the Scaling indicator at the top of the screen illuminate Applicable Measurement Functions Voltage U current I power P S and Q maximum and minimum voltages U pk and U pk and maximum and minimum currents I pk and I pk e ON The measurement functions above are multiplied by the VT ratio CT ratio or power coefficient OFF The measurement functions above are not multiplied by the VT ratio CT ratio or power coefficient The output values of the VT and CT are displayed directly as numeric data VT Ratio VT Scaling Set the VT ratio when applying the secondary output of a VT to the voltage input terminal Then set the voltage range according to the maximum VT output Element1 to Element6 Use the soft keys to select an element and then set the element s VT ratio to a value within the following range 0 0001 to 99999 9999 Copying the VT Ratio Exec Copy 2 Copy the VT ratio of the selected input element to the other input elements in the same wiring unit CT Ratio CT Scaling Set the CT ratio or the conversion ratio of the current sensor that produces current when applying the secondary output of a CT or clamp type current sensor that produces current to the current input terminal Then set the current range according to the maximum CT or current sensor output
111. cannot set Japanese and Chinese to the menu language and the message language at the same time For example if you specify Japanese as the menu language and Chinese as the message language the menu language will also be set to Chinese Adjusting the LCD LCD You can turn off the LCD and adjust its brightness Turning Off the LCD LCD Turn OFF You can turn off the LCD When the LCD is off you can turn it back on by pressing a key Automatically Turning Off the LCD Auto OFF The LCD turns off automatically when there are no key operations for a given time period The LCD turns back on when you press a key Auto Off Time Auto OFF Time You can set the time after which the LCD turns off automatically to a value within the following range 1 min to 60 min Adjusting the Brightness Brightness You can set the brightness to a value from 1 darkest to 10 brightest You can prolong the LCD service life by decreasing the LCD brightness or by turning off the LCD when you do not need to view it Display Color Color Settings Graph Colors Graph Color You can choose the colors that are used to display the data in the waveform trend and vector displays from the following options Default Default CH1 to CH16 are displayed with different colors Classic Classic The color scheme is the same as that of the WT1600 Some channels from CH1 to CH16 share the same color 22 6 IM WT1801 01EN 22 Utility The display da
112. ce nent ese epet eo eer antea eee Ee ipte lesu eec eee castle bec ciega 7 7 Alliltems Display All IteMmS ss acct LER 7 8 Single Harmonics and Dual Harmonics Lists Hrm List Single Dual option 7 9 Custom Display CuUStOM ierra OM UEM ERE 7 10 IM WT1801 01EN Contents 8 10 11 12 Computation Computation MEASURE srine pesien e spines eeeas Fee e ue En eek ea Ex ERIS EET pds aee ue ae aee exe RE 8 1 User Defined Functions User Defined Function 8 1 Measuring the Average Active Power ccecsccersscecressereersssneesgenesueeceenssenesnauersueceeeeeineresenseeeees 8 5 MAX Hold Max HONG ccs M M ee 8 5 User Defined Events User Defined Event 0 0 cece eeeneeeeeee erties eeenteeeeneee eee eeeaeeseeeeeenneeeneaa 8 6 Apparent Power Reactive Power and Corrected Power Equations Formwula 8 8 Sampling Frequency Sampling Frequency seen emen nennen 8 9 Phase Difference Display Format Phase eec eee enteras 8 10 Master Slave Synchronization Measurement Sync Measure 8 10 Voltages or Currents Whose Frequencies Will Be Measured FREQ MEASURE 8 11 Integrated Power Watt hours Integration Related Display Indications sssen meme 9 1 Number of Displayed Digits Display Resolution 9 2 Enabling or Disabling Independent Integration Independent Control
113. cest esee ts 8 9 load E r rU o Dm peak over range jump 2 16 local Lo T Tees ML NER E E DE 11 3 M Page manual CSV conversion esesessesse 16 9 17 5 manual integration mode ssssssssseees 9 7 DOWER Talde ceto estis teo dapes 2 12 manual storage mode E preference sssssseeetttte tette tette tenen 22 7 MASTOT presetitems ioo cse cete eR etes 7 6 Inn CREE matrix display Print At Stat cett na rtt yt ctt 20 3 max hold print conditioris rac roce cnm c e s 20 1 maximum capturing count is print count 20 2 maximum harmonic to be measured ssssssssss 3 2 printing 20 1 maximumv storage COUNT massissas 17 2 printing execution of 20 6 max Order ssie r er nn erara Resana SEa nennen 9 2 bp Intel alerte tense EEE 20 2 measured harmonic order e 92 PRINT MENU irssi niinen ttt 20 1 measurement function sssssssssseeetene 1 6 print modes 20 2 measurement Period cceeccceeeeeeeeeeeeeeeeeneeeeeeteeetenneeetes 2 18 pulse input range 4 5 MENU OME size pner tpe core rte pd pulse Nu s ALT menu language zn pulserange lOWer rne itt erem terere 4 5 message language sssse ee 22 6 pulse range upper 4 5 minimum harmonic to be measured ssssssssss 3 2 pulse rating 2 4 5 veWrllpce
114. ck here Element Element Z You can select the element wiring unit from the options below The available options vary depending on the installed elements Element1 Element2 Element3 Element4 Element5 Element6 2A 2B and 2C Order Order option This is the same as setting the harmonic order in the 4 8 and 16 value displays P Click here Judgment Condition Select the method for comparing the measured value and the reference value from the following options OFF lt lt gt gt not equal Reference Value Select a number from 9 9999 T to 9 9999 T 8 6 IM WT1801 01EN 8 Computation For example a condition that is true when 150 the measured power value of element 1 160 W and false otherwise would be configured as shown below Expression fim Condition Function Element Order Range P Element 1 Total 150 00 CO C6000 Condition Condition Specify the judgment condition here when you have set the judgment condition specification method to Condition Inverts the condition Event specification boxes Condition Olnverse Ev OR Ev2 END AND OR END specification boxes Inverting the Condition Inverse You can invert the judgment of the condition indicated to the right of the check box Event Specification Boxes You can select the number of a user defined event that is smaller than the number of the user defined event
115. ct an equation to use for this correction and specify the coefficient Applicable Standard Select standard Select from the following EC76 1 1976 EC76 1 1993 Equations for each applicable standard IEC76 1 1976 IEC76 1 1993 P Umn Urms Umn Pc Pc P 2 P4 P2 ves Umn Pc Corrected power P Active power Urms True rms voltage Umn Voltage s rectified mean calibrated to the rms value P1 P2 Coefficients specified by the applicable standard Coefficients P1 and P2 You can set coefficients P1 and P2 to values within the range of 0 0001 to 9 9999 o The IEEE C57 12 90 1993 equation is the same as IEC761 1976 Sampling Frequency Sampling Frequency The WT1800 offers three types of sampling frequencies each approximately 2 MHz to prevent the input waveform from being measured as a DC signal because of aliasing You can choose to automatically switch the sampling frequency or choose to use a fixed frequency Auto The WT1800 automatically switches between clocks A B and C e Clock A 2 000000 MHz ClockB 1 941176 MHz Clock C 1 885714 MHz Li Setthe sampling frequency to Auto to prevent the measured values from being distorted by aliasing f you want to use a fixed sampling frequency select a frequency from Clock A to Clock C IM WT1801 01EN 8 9 8 Computation Phase Difference Display Format Phase The phase difference between the voltage and current indicates the current
116. cteatoceensesenecmereteaernteutenrentnstosecr streets eer display items vector 219 2 display items waveform sssssssseen 10 8 m JJ Page display re Solito Missirien 7 4 harmonic MEaSUreMeMbs esscco csccs ceeseeeceessesetessseneeseynenaececesene 3 1 display settings high speed data capturing 16 1 distortion factor high speed data capturing state 16 1 DNS uin ne fo Reever tote arcte 6 1 DNS Sefe ic rtt ten n rep Ra a0 01 e etree rr rery 3 3 domain SUTTDC s accettare e RODA HER HEISE ORAN AMO E le 3 3 dual harmonics list Hrm List Dual 7 2 Hrm List Single es T2 E Page HSiller ise een tione 16 5 OMIGION CV ete 2 4 electrical angle Ascionana ien ice ce cie coti 4 8 Page electrical angle COrrectiO Msni 4 8 Micro eC E E A A A 13 2 ELEMENT measurement range of 2 8 Independent Control 9 4 ELEMENT numeric data display 7 6 independent input element configuration 2 5 element independent E independent integration element object esssssssssseseeseeerenet nnne LOTES P4 o enee MC sel NEEE RE elements rr rte rrr rt erae n Hn d eerte lnitialize Settings coi teorie element settings input element groups z ending harmonic order cce eddie ca IN PUL IMO oi itc er p e te pee exa end Orde Pert ERE ERE input sigialiniarme coercere tse ric Lee environment settings
117. current mode from the following options For information about the equations used in each mode see appendix 1 in the getting started guide IM WT1801 03EN rms True rms value mean Rectified mean value calibrated to the rms value dc Simple average e r mean Rectified mean value ac AC component When the current mode is dc the polarity or is displayed IM WT1801 01EN 9 11 9 Integrated Power Watt hours Rated Time of Integrated D A Output D A Output Rated Time Option This setting appears on models with the 20 channel D A output option When integrated values are output through D A output a rating value the same value as the measurement range is continuously applied the integrated value after the specified amount of time has elapsed is taken to be 100 and the D A output at that point is 5 V It is assumed that the change in the D A output from 0 of the integrated value 0 V to 100 of the integrated value 5 V will occur linearly over time and the D A output value is determined by the ratio of the actual input level to this assumed straight line For information about the relationship between the measured integrated D A output value and the voltage see Relationship between Output Items and the D A Output Voltage P Click here Setting the Rated Time for Integrated D A Output You can set the hour minute and second within the following range 00000 00 00 to 10000 00 00 This setting is valid in
118. d B A gt o n g When the maximum 2 5 integrated value is i reached Hold T 2 S o g Start Stop Reset Start Reset IM WT1801 01EN 9 7 9 Integrated Power Watt hours Normal Integration Mode Normal You can set a relative integration time set a timer Integration starts when you press Start When one of the conditions below is met integration is stopped and the integration time and integrated value are held The specified timer time elapses The Stop soft key is pressed The integrated value reaches its maximum or minimum displayable value S B Hold gt o o g 4 o o g S ODA E Hold 5 c 2 c L4 o o g f Timer value it gt Start Reset Continuous Integration Mode Continuous integration Continuous You can set a relative integration time Integration starts when you press Start When the specified timer time elapses integration is automatically reset and restarted Integration repeats until you press Stop However if the integrated value reaches its maximum or minimum displayable value before the specified amount of time has elapsed integration is stopped and the integration time and integrated value at that point are held A Integration time Integrated value Timer value Timer Timer it value value Start Stop Reset 9 8 IM WT1801 01EN 9 Integrated Power Watt hours
119. d U3 1 are line U1 1 U2 1 and U3 1 are line voltages voltages e 1 1 12 1 and 13 1 are line 1 1 I2 1 and 13 1 are line c currents urrents However U3 1 and I3 1 are not actually measured for the 3P3W system The vectors are displayed through computation i11 I2 1 If the analysis window width number of cycles of the fundamental signal that is determined by the fundamental frequency is shorter than the data update interval vectors are not displayed Set a longer data update interval For details see Notes about the Numeric Data Display P Click here IM WT1801 01EN 13 1 13 Vector Display Option D D isplay Format FORM Number of Vector Display Windows Format You can choose the number of windows from one of the following options Single No windows The data of vector Item No 1 is displayed Dual Two windows The data of vectors Item No 1 and 2 is displayed However in the split display the data of vector 1 is displayed Turning the Display of Numeric Data On and Off Numeric You can select whether to show ON or hide OFF numeric data You can display the size of each signal and the phase differences between signals For information about phase difference display formats see Phase Difference Display Formats P Click here isplay Item ITEM Vector Number Item No Select the vector you want to set 1 or 2 Element or Wiring Unit Object
120. d time on the WT1800 Method for Setting the Date and Time Type You can set the method for setting the date and time to one of the following options Manual Setthe date or time manually e SNTP Use an SNTP server to set the time valid when Ethernet communication is being used Date and Time Date Time This setting is valid when the method for setting the date and time is set to Manual Set the date and time Setting the date The format for setting the date is YYYY MM DD year month day Set the year using the last two digits of the year according to the Gregorian calendar Setting the time The format for setting the time is HH MM SS hour minute second The hour can be set to a value from 0 to 23 Setting the Time Difference from Greenwich Mean Time Time Difference From GMT This setting appears when the method for setting the date and time is set to SNTP Set the time difference between the region where you are using the WT1800 and Greenwich Mean Time to a value within the following range 12 hours 00 minutes to 13 hours 00 minutes For example Japan standard time is ahead of GMT by 9 hours In this case set Hour to 9 and Minute to 00 Checking the Standard Time Using one of the methods below check the standard time of the region where you are using the instrument e Check the Date Time Language Regional Options on your PC e Check the standard time at the URL on the right http www worldtimeserver com 0
121. der to be measured is set to 1 the data of the DC component is not included when the distortion factor is determined There is no overload value indication OL or zero indication suppression to zero for the numeric data of harmonic orders 0 DC to 500 For information about the overload value indication OL and zero indication suppression to zero in normal measurement see section 6 4 in the getting started guide IM WT1801 03EN IM WT1801 01EN 3 Harmonic Measurement Conditions Option Distortion Factor Equation Thd Formula When determining the harmonic measurement functions Uhdf Ihdf Phdf Uthd Ithd and Pthd you can select to use one of the denominators described below as the denominator for the equation For information about equations see appendix 1 in the getting started guide IM WT1801 03EN 1 Total The denominator is the measured data of all orders from the minimum measured order 0 or 15t to the maximum measured order within the upper limit of harmonic analysis 1 Fundamental The denominator is the data of the fundamental signal component 1st order Input Element Group Element Settings This setting appears on models with the simultaneous dual harmonic measurement option You can divide all the input elements into two groups Hrm1 and Hrm2 and measure harmonics using two PLL sources with different frequencies You can measure the input and output harmonics of an AC AC converter whose inpu
122. display thumbnails Selecting the Type of File to List File Filter You can limit the type of files that appear in the list by selecting an extension Changing the Storage Medium Change Drive You can select the storage medium that you want to access The WT1800 displays the storage media as follows e RAM 0 The internal RAM disk of the WT1800 USB 0 The first USB memory device connected to a WT1800 USB port USB 1 The second USB memory device connected to a WT1800 USB port e Network A storage device on the network Deleting Files and Folders Delete You can delete the selected files and folders Renaming Files and Folders Rename You can rename a selected file or folder Making Folders Make Dir Make a folder You can use the same characters in folder names that you can in file names Copying and Moving Files and Folders Copy and Move You can copy or move the selected files and folders to other storage media or folders You can copy or move multiple files at the same time Operations Operation You can select from the following operations Delete Delete files and folders Rename Rename a file or folder Make Dir Make a folder Copy Copy files and folders Move Move files and folders 18 6 IM WT1801 01EN 18 Saving and Loading Data File Selection Set Reset Select or deselect files and folders Selecting multiple files is useful when you want to copy or delete multiple files at the sa
123. e High Speed Data Capturing Measurement Functions under Items That This Instrument Can Measure P Click here 16 2 IM WT1801 01EN 16 High Speed Data Capturing Data Capturing Interval The interval at which data is captured varies as shown below depending on how External Sync is set When External Sync is set to OFF 5 ms When External Sync is setto ON The interval at which data is captured depends on the sync signal that is applied to the external start signal I O MEAS START connector The WT1800 can sync with a signal whose period is 1 ms to 100 ms Display Update Rate The display update rate is approximately 1 s Numeric Data Display The numeric data for each measurement function that was last measured within the display update interval is displayed You cannot make individual changes to the displayed measurement functions Use the PAGE UP and PAGE DOWN keys to change the display The number of pages varies as indicated below depending on the installed options Motor Evaluation Function External Signal Input Number of Pages Not installed Not installed Installed Not installed Not installed Installed O fthe measured value exceeds 300 OL for over range is displayed for U or When you are measuring with the highest measurement range if the measured value exceeds 140 OL for over range is displayed for U or I fthe measured value for the voltage or current is over range
124. e RAM disk to a USB memory device or network drive before you turn off the WT1800 Format of Screen Image Data Format You can select the format to save to from the options listed below BMP The extension is BMP The file size is approximately 100 KB for black and white mode and approximately 1 5 MB for color mode PNG The extension is PNG The file size is approximately 25 KB for black and white mode and approximately 100 KB for color mode JPEG The extension is JPG The file size is approximately 200 KB for color mode Li The file sizes listed here are for reference Actual file sizes will vary depending on the image that is saved Screen Image Colors Color You can select the color format to save to from the options below OFF Data is saved in black and white Color Data is saved in 65536 colors Reverse Data is saved in 65536 colors The image background is set to white Gray Data is saved in 16 grayscale levels Automatic File Naming Auto Naming This is the same as the auto naming feature for saving and loading data P Click here File Name File Name This is the same as the file name setting for saving and loading data P Click here Comment Displayed at the Bottom of the Screen Comment This is the same as the comment setting for saving and loading data P Click here Saving a Screen Image IMAGE SAVE Save the screen image to a file IM WT1801 01EN 19 1 20 Printing Screen
125. e when you are measuring signals for rotating speeds of 120 rpm to 180 rpm and torques of 18 Nem to 18 Nem set the rotating speed pulse input range to 100 rpm to 200 rpm and set the torque pulse input range to 20 Nem to 20 Nem Upper and Lower Limits Pulse Range Upper Pulse Range Lower You can set the pulse range for each input signal within the following limits Revolution signal 0 0000 to 99999 9999 rpm Torque signal 10000 0000 to 10000 0000 N m When the input signal type is pulse the waveform display lower and upper limits are the values that you set here On models with the D A output option the rated D A output values are as follows Revolution and Torque Input Signals D A output Setting for Pulse Range Upper T5V Setting for Pulse Range Upper x 1 5V Torque Signal Pulse Rating When the torque signal type is pulse refer to the torque meter s specifications to set its rated positive and negative values Positive and Negative Rated Torque Signal Values Rated Upper Rated Lower Range 10000 0000 to 10000 0000 N m IM WT1801 01EN 4 5 4 Motor Evaluation Conditions Option Positive and Negative Rated Torque Signal Pulse Frequencies Rated Freq Upper Rated Freq Lower Range 1 to 100000000 Hz The following equation is used to compute the torque Torque S AX B NULL S The scaling factor A The torque pulse coefficient X The pulse frequency B The torque pulse off
126. e been disabled in the valid measurement range settings are dimmed Display Items ITEM Turning the Display Frame On and Off Display Frame P Click here Li The setup parameter list shows the settings when measurement took place If the measurement range or some other setting is changed while the hold feature is on the changes will not be reflected in the list When the setup parameter list is displayed press FORM to switch between the FORM menu for the setup parameter list and the FORM menu for the display in the bottom half of the screen Likewise press ITEM to switch between ITEM menus 2 22 IM WT1801 01EN 3 Harmonic Measurement Conditions Option Harmonic Measurement Conditions HRM SET Using harmonic measurement you can measure functions that are based on the voltage current and power harmonics and their distortion factors on the phase angle of each harmonic relative to the fundamental etc You can also compute the harmonic distortion factors for voltage and current For a list of the measurement functions that can be measured with harmonic measurement and their descriptions see Harmonic Measurement Functions under Items That This Instrument Can Measure gt Click here Models with the Harmonic Measurement Option The following menu items appear PLL source PLL Source Measured harmonic orders Min Order Max Order Distortion Factor Equation Thd Formula Models with the Simultaneous Dua
127. e following additional restrictions apply when you use the file name auto naming feature f you set auto naming to Numbering a file name will consist of the characters that you entered for the file name and a four character sequence number f you set auto naming to Date date and time the characters that you entered for the file name will not be used File names will only consist of the date information 18 4 IM WT1801 01EN 18 Saving and Loading Data Comment Comment You can add a comment that consists of up to 30 characters when saving files You do not have to enter a comment In the comment you can include spaces and all characters that are displayed on the keyboard The comment appears in the bottom of the screen Settings That Are Shared with Those of Other Menus The following settings are shared by the menus for saving the custom display configuration storing data saving and loading data and saving screen images File list display and save destination settings File List Automatic file naming settings Auto Naming File name File Name The comment settings Comment are shared by the menus for storing data saving and loading data saving screen images and the menus for printing screen images and numeric data Saving Save Exec Saves the data to the specified save destination with the specified file name It can take anywhere from a few seconds to a few tens of seconds for the WT 1800 to save t
128. e following trigger slope settings are available for triggering the WT1800 F An edge is detected when the trigger source changes from a level below the trigger level to a level above the trigger level rising e An edge is detected when the trigger source changes from a level above the trigger level to a level below the trigger level falling e The WT1800 triggers on both rising and falling edges Trigger Level Level The trigger level is the level at which the trigger slope is determined When the trigger source passes through the trigger level on a rising or falling edge a trigger occurs You can select a value between 0 0 and 100 0 Avalue of 10096 corresponds to half the height of the waveform display If the zero level of the input signal is set to the center of the vertical axis 100 corresponds to the top of the waveform display and 10096 corresponds to the bottom of the waveform display The upper and lower limits of the waveform display correspond to three times the voltage or current measurement range of each element when the crest factor is set to CF3 and six times when the crest factor is set to CF6 When scaling is used the upper and lower limits correspond to three or six times the scaled ranges When Ext Clk is set as the trigger source the trigger level setting is invalid IM WT1801 01EN 10 5 10 Waveform Display Trigger level I l Trigger source i l The WT1800 triggers here
129. e input signal changes Set the range in reference to the rms value of the input signal For 5 A Input Elements When the Crest Factor Is Set to CF3 You can select from 10 mA 20 mA 50 mA 100 mA 200 mA 500 mA 1A 2A and 5A When the Crest Factor Is Set to CF6 You can select from 5 mA 10 mA 25 mA 50 mA 100 mA 250 mA 500 mA 1 A and 2 5 A For 50 A Input Elements When the Crest Factor Is Set to CF3 You can select from 1 A 2 A 5 A 10A 20A and 50 A When the Crest Factor Is Set to CF6 You can select from 500 mA 1 A 2 5 A 5 A 10 A and 25 A Auto Range This is the same as the auto range feature for voltage gt Click here Li When the secondary output of a CT current transformer or a clamp type current sensor that outputs current is being applied to the current input terminal set the current range according to the maximum value of the CT or current sensor output Then use the scaling feature to set the CT ratio or the conversion ratio of the clamp type current sensor that outputs current Auto Current Range AUTO A This is the same as the auto range feature for voltage P Click here IM WT1801 01EN 2 11 2 Fundamental Measurement Conditions Power Range The measurement ranges power ranges of active power P apparent power S and reactive power Q are as follows Wiring System Power Range 1P2W single phase two wire system Current range x voltage range 1P3W single phase three wi
130. e is Auto or Normal Trigger Data wait capturing Highspeed MESSA NEVER data capturing Ready Start Ready state HS State File recording T E MEM ere state Read R i Read File State ees ME eid Time Start key Trigger Completion of Completion file recording of initialization Stop key or capture count After a trigger occurs measured data is regularly written to the high speed data capturing data file WTS 16 10 IM WT1801 01EN 16 High Speed Data Capturing Display Items ITEM Number of Columns Column Num You can select four or six columns Column Number Column No Select the number of the column that you want to configure Element Element 2 This is the same as the element Element 2 item in the Matrix display P Click here Directly Selecting Elements ELEMENT This is the same as direct element selection in the 4 8 and 16 value displays P Click here Resetting the Settings Reset Items Exec Reset the column settings Turning the Display Frame On and Off Display Frame This is the same as turning the display frame on and off in the 4 8 and 16 value displays P Click here Displaying Peak Over Range Occurrence Information Display Peak Over Status You can select whether to show ON or hide OFF peak over range occurrence information Peak Over Range Occurrence Information Peak Over Status Ifa peak over range occurs in an
131. e may be incomplete or corrupted If this is the case you will not be able to convert the data to ASCII format csv Be sure to remove the USB memory after storage has been reset or has completed Cmpl When you turn off the WT1800 power the contents of the internal RAM disk are lost Save the contents of the RAM disk to a USB memory device or network drive before you turn off the WT1800 Please be aware that the number of times that you can write to USB memory is limited Starting Stopping and Resetting Storage STORE START STORE STOP and STORE RESET Starting Storage STORE START When you press STORE START storage starts under one of the conditions described below depending on the storage mode Manual storage mode Manual Storage starts immediately Real time storage mode Real Time The WT1800 enters into a storage ready state Storage starts when the scheduled storage start time is reached Integration synchronized storage mode Integ Sync The WT1800 enters into a storage ready state Storage starts when integration starts Event synchronized storage mode Event The WT1800 enters into a storage ready state Storage starts when a user defined event occurs Single shot storage mode Single Shot Storage starts immediately Numeric data is stored whenever you press STORE START When storage starts the STORE START key illuminates and Store Start appears in the upper left of the Screen When the WT1800 is in a st
132. e number of data points from approximately 2 000 000 to 1602 801 pairs of maximum and minimum values Thus two points a pair of waveform display data are derived from approximately 2500 points of waveform sampling data This conversion is called p p peak peak compression The compression ratio of p p compression varies depending on the data update interval and the horizontal scale time axis of the waveform display Waveform sampling data lt 1s Number of data points Approx 2 000 000 Waveform display data WT screen Vertical axis lt gt 0 801 rasters 800 Number of data points 1 602 801 pairs A D converted data i E p p compression Compresses EE approximately 2500 points of waveform d sampling data to E 2 points extracts the maximum and minimum values and draws them in each raster Time axis With display interpolation IM WT1801 01EN 10 3 10 Waveform Display Aliasing When the sample rate is low compared to the frequency of the input signal the high frequency components of the signal are lost In accordance with the Nyquist sampling theorem the high frequency components in the signal are misread as low frequency components This is called aliasing Aliased signal Input signal Sampled points Vertical Axis Amplitude The height di
133. e per 1 V Li If you enable the NULL function and then change the input signal slope A or offset value B NULL correction will be offset Reset the NULL value Computing the Input Signal Slope and Offset by Specifying Two Points Calculation On the input characteristic graphs of the rotating speed and torque you can specify two measured rpm or Nem values Point1Y and Point2Y in relation to two input voltage values Point1X and Point2X Measured values Point1X and Point2X 1 000 T to 1 000 T Computed values Point1Y and Point2Y 1 000 T to 1 000 T Select Execute to use these four values to determine and set the input signal slope A and offset B Measured value y Ax B Point2Y Point e Point1Y Input value Point1X Point2X Measurement range Line Filter Line Filter You can remove high frequency noise by inserting a line filter into the circuit used to measure the revolution and torque signals You can select the cutoff frequency from the following options OFF 100 Hz and 1 kHz Selecting OFF disables the filter Li The line filter setting applies to input signals whose type has been set to analog For input signals whose type has been set to pulse there is no need to configure this setting 4 4 IM WT1801 01EN 4 Motor Evaluation Conditions Option Synchronization Source Sync Source When you are measuring analog revolution and torque signals you can select t
134. e per division can be set in the range of 3 s to 1 day The trend data update interval is determined by the data update interval and the time axis Time div For example if the data update interval is 50 ms and you set Time div to 3 s div the trend display is updated every 1 s If you set the data update interval to 10 s and Time div to 3 s div the trend display is updated every 10 s and the trend data is displayed as a line graph with each point separated by 10 s If you set Time div to 1 day div the trend display will be updated once every 1080 s regardless of the data update interval Li One division 1 div on the trend display is equivalent to 80 rasters For example if you set Time div to 1 day div one raster is 1080 s which is equal to 1 day 80 the trend data update interval is 1080 s and the displayed data is P P compressed For information about rasters and P P compression see p p Compression gt Click here Restarting Trends Clear Trend Exec When you restart trends the trend display up to that point is cleared and the trends start over from the right end of the screen In addition to when you execute Clear Trend Exec trends will also restart when You change a trend display function element or harmonic option setting You change the trend time axis horizontal axis setting Advanced Trend Display Settings Display Settings These are the same as the advanced waveform display settings P Click here
135. e used to determine the values of harmonic measurement functions may be different from those used to determine the values of normal measurement functions Element1 to Element6 Use the soft keys to select an element and then select the signal to use as the sync source from the options listed below The available options vary depending on the installed elements When independent input element configuration is off elements in the same wiring unit have the same sync source U1 11 U2 I2 U3 I3 U4 14 U5 I5 U6 I6 Ext Clk external clock and None When you select Ext Clk the external signal applied to the external clock input connector EXT CLK on the rear panel is used as the sync source For the EXT CLK connector specifications see section 4 3 in the getting started guide IM WT1801 03EN 2 18 IM WT1801 01EN 2 Fundamental Measurement Conditions Li f you specify no sync source by selecting None all of the sampled data within the data update interval is used to determine the numeric data When you are measuring DC signals this method can be used to prevent noise from causing errors in the detection of the measurement period Ifthe sync source is not set correctly the measured value may fluctuate or be incorrect When you set the sync source refer to appendix 5 in the getting started guide IM WT1801 03EN Line Filter LINE FILTER There are two types of input filters line filters and frequency filters
136. eWi u4 1000V 4 50A U4 1000V Sync Srcz H4 4 50A Sync Src 14 Element b Het US 1000V Us 1000V 5 50A 5 50A Sync Src I5 Sync Src 14l Element 6 Het Element 6 met UB 1000V UG 1000V 6 50A 6 50A Sync Sre I6 Sync Sre I6 and 3 is set to three phase four wire and the wiring system of elements 4 and 5 is set to ZAPAH Wiring unit and system The elements that compose the wiring unit are shown in the frame ERPI HE Wiring unit and system The elements that compose the wiring unit are shown in the frame 2 2 IM WT1801 01EN 2 Fundamental Measurement Conditions Settings of Elements Grouped in a Wiring Unit If independent input element configuration is off and a wiring system other than 1P2W is selected when the measurement range valid measurement range or valid synchronization source settings of each input element are different these settings are changed in the manner described below The measurement range is set to the greatest of the measurement ranges of the input elements assigned to the same wiring unit The external current sensor input range has precedence over the direct input current range The auto range on off settings are changed to match the setting of the input element whose measurement range is highest If multiple input elements are set to a common highest measurement range the setting of the input element with the smallest input elemen
137. ecorded to and the file recording state changes to Error the high speed data capturing file may be incomplete or damaged If this is the case you Will not be able to convert the data to ASCII format csv Be sure to only disconnect the USB memory device when the file recording state is Ready When you turn off the WT1800 power the contents of the internal RAM disk are lost Save the contents of the RAM disk to a USB memory device or network drive before you turn off the WT1800 Please be aware that the number of times that you can write to USB memory is limited IM WT1801 01EN 16 7 16 High Speed Data Capturing Save Conditions File Settings File List Display and Save Destination Settings File List On the file list specify the save destination for the measured data You can set the storage medium to the internal RAM disk or to a USB memory device You cannot set the storage medium to a network drive For information about how to configure the file list display and how to operate files and folders see File Operations Utility gt Click here Li If you set the storage medium to a USB memory device when you remove the USB memory device the storage medium automatically changes to the internal RAM disk Automatic CSV Conversion Auto CSV Conversion You can choose whether to automatically create an ASCII format high speed data capturing file csv from the high speed data capturing data file wts and the high sp
138. ection This function is useful when you wish to observe the phase voltage of an object that has no neutral line such as a motor The center N of the star connection is computed as the center of the delta connection If the actual center of the star connection does not match the center of the delta connection an error results R R gt T S T S When you perform delta computation on wiring unit ZA the available measurement functions are as follows AU1rms UrA AU1mn UrA AU1dc UrA AU 1rmn UrA AU1ac UrA AU2rms UsA AU2mn UsA AU2dc UsA AU2rmn UsA AU2ac UsA AU3rms UtA AU3mn UtA AU3dc UtA AU3rmn UtA AU3ac UtA AU2rms UZA AUZmn UZA AUZdc UZA AUZrmn UZA AUZac UZA Alrms InA Almn InA Aldc InA Alrmn InA Alac InA AP1 PrA AP2 PsA AP3 PtA AP2 P2 A IM WT1801 01EN 2 7 2 Fundamental Measurement Conditions S T C A og 17 n the measurement functions rms mn mean dc rmn r mean and ac are the delta computation modes A indicates the wiring unit gt Click here For information about equations see appendix 1 in the getting started guide IM WT1801 03EN For information about the measurement period see Measurement Period P Click here Delta Computation Modes AMeasure Mode You can select the voltage or current mode to be displayed as delta computation values from the following rms mean dc r mean ac Li We recommend that you set the me
139. edge of the screen is indicated The difference between the horizontal axis X axis values of cursor 1 and cursor 2 x The date and time at the position of cursor 1 The date and time of measurement are displayed in this format Year Month Day Hour Minute Second The date and time at the position of cursor 2 x The date and time of measurement are displayed in this format Year Month Day Hour Minute Second lf immeasurable data exists is displayed in the measured value display area AY can be measured even when the units of the cursors are different The measured result will not have a unit In the Bar Graph Display Y1 Y1x AY1 Y2 Y2x AY2 Y3 Y3x AY3 The vertical axis Y axis value of cursor 1 of bar graph 1 The vertical axis Y axis value of cursor 2 x of bar graph 1 The difference between the vertical axis Y axis values of cursor 1 and cursor 2 x of bar graph 1 The vertical axis Y axis value of cursor 1 of bar graph 2 The vertical axis Y axis value of cursor 2 x of bar graph 2 The difference between the vertical axis Y axis values of cursor 1 and cursor 2 x of bar graph 2 The vertical axis Y axis value of cursor 1 of bar graph 3 The vertical axis Y axis value of cursor 2 x of bar graph 3 The difference between the vertical axis Y axis values of cursor 1 and cursor 2 x of bar graph 3 IM WT1801 01EN 15 3 15 Cursor Measurement
140. ee Harmonic Measurement Function Orders P Click here The numeric data corresponding to harmonic orders above the maximum measurable harmonic order is displayed as no data For information about the maximum measurable harmonic order see Maximum Harmonic Order to Be Measured Max Order gt Click here Resetting the Display Items Reset Items Reset Patterns Reset Pattern You can select the reset method from the following options Element Origin The numeric data for each element is displayed on each page The pattern that the data is arranged in varies depending on the number of installed elements Function Origin The numeric data for each function is displayed on each page The pattern that the data is arranged in varies depending on the number of installed elements Clear Current Page All the display items on the current page are set to None Clear All Pages All the display items on every page are set to None Resetting the Items Reset Items Exec Reset the items Turning the Display Frame On and Off Display Frame Set whether to show the display frame 7 6 IM WT1801 01EN 7 Numeric Data Display Matrix display Matrix Item Number to Set Item No This is the same as setting the item number in the 4 8 and 16 value displays P Click here Function Function This is the same as setting the function in the 4 8 and 16 value displays P Click here Li In the
141. eed data capturing header file hds that are saved when high speed data capturing stops When the storage destination is the internal RAM disk RAM 0 A CSV file is created in the root folder of the USB memory device whose ID number is 0 USB 0 An error message appears when USB memory is not connected When the storage destination is a USB memory device USB 0 or USB 1 A CSV file is saved in the same folder as the high speed data capturing data file Li The WT1800 will not create a CSV file whose size exceeds 2 GB but will instead create a CSV file for 2 GB worth of captured data To convert the data into a CSV file whose size exceeds 2 GB use the file reader software available from the following Yokogawa webpage http www yokogawa com jp ymi tm F SOF T wtfs wtfs1 htm Saved Items Item Settings Select whether to store a numeric data item by selecting or clearing its check box o Items for which there is no measurement data are displayed as no data and no data is saved for them Automatic File Naming Auto Naming This is the same as the auto naming feature for saving and loading data P Click here File Name File Name This is the same as the file name setting for saving and loading data P Click here Comment Comment This is the same as the comment setting for saving and loading data P Click here 16 8 IM WT1801 01EN 16 High Speed Data Capturing Manually Converting to CSV Forma
142. elatively fast load fluctuations in the power system select a fast data update rate To capture low frequency signals select a slow data update rate Fast The WT1800 switches to the next fastest data update interval out of the intervals listed above Slow The WT1800 switches to the next slowest data update interval out of the intervals listed above Current Rate Displays the current data update interval You can press a soft key to select a data update interval from the options listed above Li The display update intervals of numeric data and waveform data may be longer than the data update interval The lowest measurable AC signal frequency varies depending on the data update interval The measured value may not be stable if an AC signal of a frequency lower than the low frequency measurement limit see section 6 5 in the getting started guide IM WT1801 03EN is measured Averaging AVG You can take exponential or moving averages of the numeric data The averaging function is effective when reading of the numeric display is difficult due to fluctuations This occurs when the fluctuation of the power supply or the load is large or when the input signal frequency is low Turning Averaging On and Off Averaging Measurement Functions Used in Normal Measurement You can select whether to average values When you enable averaging ON the AVG key and the AVG indicator at the top of the screen illuminate Measurement Fu
143. elta computation Types of Delta Computation AMeasure Type The following types of delta computation are available Differential voltage and differential current Difference Line voltage and phase current 3P3W 3V3A Star delta transformation Star gt Delta Delta star transformation Delta gt Star The delta computation types that you can select vary as indicated below according to the wiring system Wiring System Delta Computation Type 1P3W Difference 3P3W gt 3V3A 3P3W Difference 3P3W gt 3V3A 3PAW Star gt Delta 3P3W 3V3A Delta gt Star Differential Voltage and Differential Current Difference The differential voltage and differential current between two elements can be computed on a single phase three wire system or on a three phase three wire system When you perform delta computation on wiring unit ZA the available measurement functions are as follows AU1rms UdiffA AU1mn UdiffA AU1dc UdiffA AU1rmn UdiffA AU1ac UdiffA Alrms ldiffA Almn IdiffA Aldc ldiffA Alrmn ldiffA Alac IdiffA n the measurement functions rms mn mean dc rmn r mean and ac are the delta computation modes A indicates the wiring unit P Click here Line Voltage and Phase Current 3P3W 3V3A You can compute unmeasured line voltages and phase currents by converting the data of a three phase three wire system to the data of the three voltage three current method 3V3A R R mud T S T S When
144. endix 1 in the getting started guide IM WT1801 03EN e Q DC DC value 1 Fundamental harmonic value Kk The value of any order from 2 to N Nis the maximum measurable order The maximum measurable harmonic order is the smallest of the three orders listed below The specified maximum measurable harmonic order The value determined automatically according to the PLL source frequency see section 6 4 in the getting started guide IM WT1801 03EN When the data update interval is 50 ms the maximum measurable harmonic order is 100 1 4 IM WT1801 01EN 1 Items That This Instrument Can Measure Wiring Unit Harmonic Measurement Functions X functions Measurement Characters or Numbers Function in Parentheses Total 1 U2 Yes Yes IZ _ Yes Yes PX Yes Yes Sx Yes Yes Q2 Yes Yes AX Yes Yes Functions with parentheses will produce different values depending on which of the following is contained in their parentheses Total Total value 1 Fundamental harmonic value Delta Computation Functions Option Function Description AU1 The values returned by the delta computation AU2 functions vary depending on the specified delta AUS computation type AUX Al AP1 AP2 AP3 APZ For details about delta computation functions see Delta Computation Measure optional gt Click here Motor Evaluation Functions Option Function Description Speed Motor rotating speed Torque Motor torq
145. ennm em 14 1 SjeldererWEcsuDorrsee e ys 14 1 Cursor Measurement Cursor Measurement CURSOR 5 2 cete icit enar rapa etate nod Rede Eat a i aaa 15 1 Turning Cursor Measurement On and Off Cursor sse 15 1 Waveform Measured by Cursor 1 C1 Trace emen 15 1 Waveform Measured by Cursor 2 x C2x Trace ssssssseeeeneeee em enne 15 1 Cursor Path Cursor Path iint ara e de sav AN va sae PU SEXUS DER aono s 15 2 Position of Cursor 1 C1 Position eene nennen nite ener nt rene rino EE iere th da nitent 15 2 Position of Cursor 2 x C2x POSION osson a eaea a aoda anaa iaaa 15 2 Linking Cursor Movement Linkage emnes 15 2 Measured tems ack disdained nda 15 2 CUFSOF lovis s 15 4 High Speed Data Capturing High Speed Data Capturing OTHERS High Speed Data Capturing sess 16 1 High Speed Data Capturing HS Settings FORM sss 16 4 Number of Data Captures Capture COUN isisisi eene 16 4 Viewing and Optimizing the Maximum Capturing Count Optimize Count sss 16 4 Capture Control Settings Control Settings seeeee e 16 5 Recording toa File Record to File nre nnm renidet inen 16 7 Save Conditions File Settlngs irent nece e dein ere eiit roaa 16 8 Starting and
146. eq Filter Count High Speed Data Capturing State Ready Ready appears when high speed data capturing has been reset and the WT1800 is ready to begin high speed data capturing When the number of data captures has been set to a value other than Infinite the number of data captures appears to the right of Count Ready HS State Captured Count 1000 Number of data captures Start e Start appears when high speed data capturing has been started The number of data captures that have been performed appears to the right of Captured Start HS State Captured ME Number of times data has been captured Count 1000 e lnit Initialize Init appears when high speed data capturing is being initialized Abar appears that indicates the initialization progress The time remaining for the initialization appears to the right of Remaining Init HS State 0 100 itiali i fea ioe Initialization progress Remaining initialization time IM WT1801 01EN 16 1 16 High Speed Data Capturing File Recording State This indication appears when you set Record to File to ON Ready e Ready appears when recording to a file is possible and the WT 1800 is ready to begin high speed data capturing Ready appears when you stop high speed data capturing and all processing for recording to a file finishes Ready High Speed Dalla Capturing File State Rec Record e Rec appears when the WT1
147. es Auxiliary input measured value SX NULL You can scale the auxiliary input by setting the scaling factor to the number of units per 1 V When There Is Offset in the Auxiliary Input Voltage If you set S to 1 the scaling factor does not affect the computation and the previous equation becomes Auxiliary input measured value AX B NULL You can scale the auxiliary input by setting the offset value B and setting the auxiliary input slope A to the number of units per 1 V Li If you enable the NULL function and then change the auxiliary input slope A or offset value B NULL correction will be offset Reset the NULL value Computing the Auxiliary Input Slope and Offset by Specifying Two Points Calculation On the input characteristic graph of the external input signal you can specify two measured unit values Point1Y and Point2Y in relation to two input voltage values Point1X and Point2X Select Execute to use these four values to determine and set the auxiliary input slope A and offset B Measured values Point1X and Point2X 1 000 T to 1 000 T Computed values Point1Y and Point2Y 1 000 T to 1 000 T Select Execute to use these four values to determine and set the auxiliary input slope A and offset B Measured value y Ax B 1 Point2Y Point1Y 2 Pointi Poinx Input value Measurement range 5 2 IM WT1801 01EN 5 Auxiliary Input Conditions Option Line
148. es Yes Yes Yes Yes Yes Yes Yes Yes Harmonic active power distortion factor Yes Total harmonic voltage distortion Total harmonic current distortion Total harmonic active power distortion Telephone harmonic factor of the voltage Telephone harmonic factor of the current Telephone influence factor of the voltage Telephone influence factor of the current Harmonic voltage factor Harmonic current factor K factor Phase difference between the fundamental voltage of element i Ui 1 and the fundamental voltage of element j Uj 1 Phase difference between Ui 1 and the fundamental voltage of element k Uk 1 Phase difference between Ui 1 and the fundamental current of element i li 1 Phase difference between Uj 1 and the fundamental current of element j 1 Phase difference between Uk 1 and the fundamental current of element k Ik 1 Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No Yes No No Yes Yes Yes Yes Yes Yes No No No No No No No No No No No No No No No No No No No No No Yes Yes Yes Yes Yes 1 i j and k are input element numbers For example when the number of input elements in wiring unit ZA is six and the wiring system of elements 1 2 and 3 is three phase four wire i is 1 j is 2 and k is 3 Ui Uj represents U1 U2 the difference between the fundamental voltage signal of element 1 U1 1 and the fundamental v
149. es not fit into the display frame You can select a value between 0 000 and 130 000 When the zoom factor is set to 1 a value of 10096 corresponds to half the height display range of the waveform display which is three or six times the measurement range when the crest factor is set to CF3 or CF6 respectively The upper and lower vertical display limits of the screen are 100 and 100 100 7 F Position moved by 50 E Position moved by 50 100 As shown in the figure below when the zoom factor is set to a value other than 1 the upper and lower display limits of the screen do not correspond to three or six times the measurement range or to 10096 when the crest factor is set to CF3 or CF6 respectively You must take the zoom factor into account when setting a waveform s position In the figure below the crest factor is set to CF3 the voltage range is 100 V the zoom factor is 2 and the vertical position has been shifted by 2596 The waveform is shifted by the same amount that it would be if the zoom factor were set to 1 and the vertical position was shifted by 5096 Display range position moved by 25 1 E i 4 eae eee See eee eet ee eae ees Peed See rong yi E 0d 0g 71004 777777
150. ete ene 2 6 DaCKOFOUNGMNG 3 scecccocspcese cesexeerve tices se erersereecce pieces tenses delta computation mode 2 8 C M eee delta computation type 2 6 bar graph display 2 dey lOC ce TE 23 3 bar graph display ANGE D 12 2 DIG E 21 2 bar graph display scale 12 2 lnizr ie poieni aeaa da aree Be anaia 2 6 bar graph display windows number of 12 1 differential current es 26 bar graph number 12 2 differential voltage ssssessssseseseeeeeeeeenneenenn nenne 2 6 DIREGT MEASURE iooot na AE 2 14 C Page display configuration file sssssssss 7 10 na M odisplay didlle ue ae n eid 22 7 C1 Position sseseseeeeenneennnnnnnnnne 19 2 displayed numeric items 17 4 18 3 IM WT1801 01EN Index 1 Index display format bar graph ene entree FTP SEV iorra eb E re a ER dre sinus 21 3 display format numeric data FU FI n display format trend display format Vector cs cie cotone nie circi pce eres G Page d Eua oM Ta ae lt E 22 3 display frame display interpolation 40 7 S el M T 10 7 ad gun CDM CEDE EE Greenwich Mean Time 21 5 22 5 display Ilem oisi one ec eS 11 3 display items bar graph rre 12 2 9nd RN MM MEM DMMMND or display Items high speed data capturing 16 11 BHIGLIDGD EY ceee
151. etthe values manually Specify two points and use those points to compute the values Manually Setting the Input Signal Slope and Offset Linear Scale A B You can set the slope A and offset B of the rotating speed and torque input signals to values within the following ranges A 1 000 m to 1 000 M B 1 000 M to 1 000 M The following equation is used to compute the rotating speed and torque Rotating speed torque S AX B NULL S The scaling factor A The input signal slope X The input voltage from the revolution sensor or torque meter B The offset NULL The NULL value IM WT1801 01EN 4 3 4 Motor Evaluation Conditions Option When There Is No Offset in the Input Voltages from the Revolution Sensor and Torque Meter If you set Ato 1 and B to O the linear scaling settings do not affect computation and the previous equation becomes Rotating speed torque SX NULL You can compute the rotating speed and torque by setting the scaling factors to the number of revolutions and the amount of torque per 1 V When There Is Offset in the Input Voltages from the Revolution Sensor and Torque Meter If you set S to 1 the scaling factor does not affect the computation and the previous equation becomes Rotating speed torque AX B NULL You can compute the rotating speed and torque by setting the offset values B and setting the input signal slopes A to the number of revolutions and the amount of torqu
152. evices or memory devices to the USB ports for peripherals Donot connect and disconnect multiple USB devices repetitively Provide a 10 second interval between removal and connection Do not connect or remove USB devices from the time when the WT1800 is turned on until key operation becomes available approximately 20 to 30 seconds The WT1800 can handle up to two USB memory devices Saving Setup Data Save Setup You can save the WT1800 setup data to the specified storage medium The date time and communication setup parameters are not saved The extension is SET For information about the file save conditions see File Save Conditions P Click here Saving Waveform Display Data Save Wave You can save the waveform data that the WT1800 has measured to a file in ASCII format csv The waveform displayed on the screen is saved For information about the file save conditions see File Save Conditions P Click here Li The waveform display data that the WT1800 saves is not the sampled waveform data that is acquired at the WT1800 sample rate of approximately 2 MS s The WT1800 performs P P compression on the sampled waveform data to produce 1602 points of waveform display data that are used to display the waveform on the screen Saving Numeric Data Save Numeric You can save the numeric data that the WT1800 has measured to a file in ASCII format csv For information about the file save conditions see File Save
153. f whether independent input element configuration is turned on or off How Settings Are Aligned When You Turn Independent Input Element Configuration from On to Off When independent input element configuration is switched from on to off the measurement range valid measurement range and sync source settings of each input element in a wiring unit ZA 2B or ZC are changed as follows The measurement range is set to the greatest of the measurement ranges of the input elements assigned to the same wiring unit The external current sensor input range has precedence over the direct input current range The auto range on off settings are changed to match the setting of the input element whose measurement range is highest If multiple input elements are set to a common highest measurement range the setting of the input element with the smallest input element number takes precedence n the valid measurement range settings all measurement ranges are enabled selected The synchronization source for a wiring unit is set to the input element whose number is the smallest of the elements in the unit IM WT1801 01EN 2 5 2 Fundamental Measurement Conditions Delta Computation A Measure option The sum or difference of the instantaneous voltage or current values sampled data between the elements in a wiring unit can be used to determine various types of data such as the differential voltage and phase voltage This operation is called d
154. gation Number and Type of Characters That Can Be Used in Equations Number of characters Up to 50 Usable characters Spaces and all characters that are displayed on the keyboard On the keyboard press to enter operand and equation characters The characters that you can select are indicated below ABS PPK HVF RMS SQR MPK HCF MN SQRT CF KFACT RMN LOG TK EAU DC LOG10 THD EAI AC EXP THF PLLFRQ PC NEG TIF Equation Examples An equation to determine the rms value of the harmonic components of the voltage signal of input element 2 Total rms voltage value Rms value of the fundamental voltage signal SQRT SQR U E2 ORT SQR U E2 OR1 84 IM WT1801 01EN 8 Computation Li If an operand in an equation is undetermined the computed result is displayed as no data This occurs when a delta computation measurement function is in the equation but delta computation is turned OFF or when a measurement function of an element that is not installed is in the equation Measuring the Average Active Power The average active power can be computed for devices such as intermittent control devices whose power fluctuates Use a user defined function to specify the equation for computing the average active power Integrated power Aver activ Wer eae Gone RENE Elapsed integration time Use the equation above For example to determine the average
155. he data depending on the number of waveforms being saved the data update interval and the transfer speed to the save destination medium It will take longer for the WT 1800 to save the data when there many waveforms are saved or the data update interval is long Measurement stops while the WT1800 is saving data After the WT1800 finishes saving or saving is cancelled measurement resumes To save data when the data update interval is 20 s enable the hold feature perform a single shot measurement and then save the data after the data update for the single shot measurement has completed O Because the header files saved by the WT1800 use a format that is common to YOKOGAWA measurement devices they contain some data that is not used by the WT1800 Loading Setup Data Load Setup On the file list specify a file to load setup data from The extension is SET For information about how to configure the file list display and how to operate files and folders see File Operations Utility P Click here Loading Load Exec Loads the data of the specified file Lu fyou change the extension of the saved data file by using a PC or some other device the WT1800 will no longer be able to load it When setup information is loaded from a file the setup data for each key is changed to match the loaded settings and it cannot be changed back We recommend that you save the current settings before loading different setup information
156. he element to use as the sync source from the following options The available options vary depending on the installed elements U1 11 U2 I2 U3 I3 U4 I4 U5 15 U6 16 Ext Clk external clock and None For the EXT CLK connector specifications see section 4 3 in the getting started guide IM WT1801 03EN The measurement period is determined according to the zero crossing point of the selected synchronization source The WT1800 uses the measurement period to measure the analog revolution and torque signals If you specify no synchronization source by selecting None all the sampled data within the data update interval is used to determine the rotating speed and torque When the revolution or torque signal is a pulse signal its value is the pulse signal period averaged over the measurement period The measurement period is determined according to the sync source If the pulse signal period does not fit within the measurement period the previous period is used to determine the measured value e To achieve stable motor efficiency measurements we recommend that you set the sync source for motor efficiency measurement to the same sync source that is set in the fundamental measurement conditions This ensures that the measurement period is in sync with the measurement functions such as those for voltage current and active power Pulse Input Range Set an appropriate range for the maximum and minimum input signal values For exampl
157. he level zero point center of the amplitude on a rising slope or falling slope Data update interval Measurement period Synchronization source 5 RAR Rising zero crossing Falling zero crossing If there is not more than one rising or falling slope within the data update interval the entire data update interval is set as the measurement period Data update interval a Y Measurement period a gt Synchronization source p The measurement period for determining the numeric data of the peak voltage or peak current is always the entire span of the data update interval Therefore the measurement period for the measurement functions that are determined on the basis of the maximum voltage or current value U pk U pk I pk I pk CfU and Cfl is also the entire span of the data update interval For details see appendix 5 in the getting started guide IM WT1801 03EN Measurement Period for Measurement Functions Used in Harmonic Measurement The measurement period extends from the first sample in the data update interval for the number of points indicated below When the data update interval is 50 ms 100 ms or 200 ms 1024 points When the data update interval is 500 ms 1 s 2 s 5 s 10 s or 20 s 8192 points The WT1800 determines the harmonic sampling frequency automatically based on the period of the signal that is set as the PLL source The sampling data and measurement period that ar
158. he relationships between integration and starting stopping and resetting are indicated below Time up Integrated value Timer value Integration time Start Stop Start Stop Reset Start Reset Starting Integration Start Integration starts under the different conditions indicated below depending on the integration mode Manual integration mode standard integration mode and continuous integration mode Integration starts immediately Real time normal integration mode and real time continuous integration mode The WT1800 enters into an integration ready state when you press Start Integration starts when the scheduled start time is reached When integration starts the START indicator to the right of the INTEG key illuminates and the integration status indication is Start When the WT1800 is in an integration ready state the START indicator blinks and the integration status indication is Ready 0 When you start integration in auto range mode the measurement range switches to a fixed range MP dM Integration Stop You can force integration to stop The integration time and integrated value are held When you force integration to stop the STOP indicator blinks and Stop appears in yellow as the integration status indication You can press Start to resume integration However after the automatic stopping of integration which is discussed later you cannot press Start to resume in
159. ic Data Display Custom Display Custom You can use an illustration BMP or picture BMP from a PC or other device as the background of the display You can arrange numeric data boxes on top of this background to create a custom display Numeric data appears in this custom display Background BMP Display items TXT pesi Power mene Motor Numeric data box supply Voltage v 230 12 228 76 Current pin 42615 3 2729 Power Wl 0 75342k 0 59864k 0 4523k efficiency 79 451 75559 Total conversion efficiency 60 033 l Power Inverter Motor supply Voltage 230 12 228 76 y Current 4 2615 3 2729 A Power 0 75342k 0 59864k 0 4523k yj Conversion 79 454 75 559 efficiency Total conversion efficiency 60 033 Display Switching the Displayed Page PAGE UP PAGE DOWN You can switch the displayed page and display a new set of items PAGEW The next page is displayed PAGEA The previous page is displayed In the 4 8 and 16 Value Displays You can switch between and display pages 1 to 12 In the Matrix Display You can switch between and display pages 1 to 9 In the All Items Display The first page is always displayed in the top half of the screen You can switch between pages 2 and later pages in the b
160. igh speed data capturing header file HDS The measurement conditions settings and recording information are saved to this file File name extensions are added automatically The file recording state File State appears in the upper left of the screen The file recording state appears as Ready Rec Stop or Error depending on the state of high speed data capturing If you set the save destination to a USB memory device a high speed data capturing data file WTS can contain up to 1 GB of data or 10 000 000 data captures The WT1800 cannot load the measurement data that has been recorded on a file Li Underthe following circumstances recording to a file stops and the file recording state changes to Stop The measurement operations for high speed data capturing continue without stopping When the file save destination runs out of free space When the size of the high speed data capturing data file exceeds the maximum value 1 GB When high speed data capturing is performed 10 000 000 times Do not output captured data through communication and record it to a file at the same time Doing so can lead to a reduction in the communication output speed and a reduction in the recording speed can cause recording to a file to stop and can make the file recording state change to Error n the following circumstances it is possible for the data update speed to surpass the speed at which the file is
161. ingle Harmonics List Display Hrm List Single option When the display mode is Numeric up to 42 of the harmonic order data items of a single measurement function are displayed in two columns When the display is split up to 22 of the harmonic order data items of a single measurement function are displayed in two columns Measurement function display area Data concerning all harmonics ut VI haf T ut VI Harmonic order data display area Measurement functions fPLL1 U1 49 997 1 729 fPLL2 U1 49 997 1 716 99 275 0 191 11 023 Urmst 1 728 0 068 3 958 Irmst 1 729 0 035 2 011 P1 4074 00 W 0 021 1 240 s1 1 86 VA 0 014 0 837 a 0 20 var 0 010 0 586 M Error 5 0 007 0 438 el Error 0 006 0 345 0 005 0 274 0 216 0 205 0 153 0 138 Uthdt 12 017 0 004 Ithdi 0 309 0 004 Pthdl 0 004 9 003 Uthfl 1 202 0 002 Ithfi 0 54 0 002 0 122 Utifl 44 586 0 001 0 095 Itifl 25 350 0 002 0 106 hvfi 8 60 0 001 0 067 heft 0 076 Y 0 001 0 057 Kfactt 1 0542 FEIPAGEE 1 11 Numeric data for each harmonic Dual Harmonics List Display Hrm List Dual option Distortion factors of each harmonic When the selected measurement funct
162. input Changing the Sense Type setting for the Speed or Torque motor evaluation input signal NULL Values When you enable the NULL feature the following measurement values are used as the NULL values Udcand ldc the voltage and current simple averages Speed and Torque signals on models with the motor evaluation option e Aux1 and Aux2 on models with the auxiliary input option Measurement Functions Affected by the NULL Feature All measurement functions are affected by the NULL values Li If there are no previously measured values for Udc Idc Speed Torque Aux1 or Aux2 because for example the NULL feature has been turned on before any measurements have been made the NULL values are set to zero For measurement functions that are computed based on an element s voltage and current values the NULL values are subtracted from the sampled voltage and current values For motor evaluation measurement functions and auxiliary input measurement functions the NULL values are subtracted from the computed numeric data 23 2 IM WT1801 01EN 23 Other Features Enabling and Disabling the NULL Feature NULL Enable the NULL feature The NULL key illuminates The NULL indicator illuminates as described below depending on how the Target Element setting has been set All The NULL indicator illuminates in the upper right of the screen Select The NULL indicator illuminates to the left of the element motor or AUX input
163. installed elements U1 11 U2 12 U3 I3 U4 14 U5 15 U6 and I6 On models that do not have the add on frequency measurement option installed select a voltage or current whose frequency is being measured voltage current to measure the frequency of If you select a voltage or current whose frequency is not being measured an error will occur Normally you should select the voltage or current that is being applied to the motor and whose frequency is being measured If you select the frequency of a voltage or current that is not being applied to the motor the sync speed may not be determined properly Sync Speed Equation The sync speed unit is fixed at min or rpm Sync speed min pum y Pole Fs The frequency of the frequency measurement source Hz Pole The number of motor poles IM WT1801 01EN 4 7 4 Motor Evaluation Conditions Option Slip Equation The sync speed unit is fixed at min or rpm To determine the slip configure the rotating speed scaling factor so that the unit of the rotating speed is also min or rpm SyncSp Speed alp n SyncSp 100 SyncSp The synchronous speed min Speed The rotating speed min Li Set the frequency measurement source to a stable voltage or current signal that is being applied to the motor and that has low distortion and noise Electrical Angle Measurement Electrical Angle Measurement This item is appears on models with the harmonic measure
164. integrated value are held The scheduled stop time is reached The integrated value reaches its maximum or minimum displayable value E c gt no 28 g Hold o 8 DA E c 2 5 Hold 2 Timer ae Timer Timer value value value Start Stop Reset date and time date and time IM WT1801 01EN 9 9 9 Integrated Power Watt hours Integration Timer Integ Timer You can set the hour minute and second within the following range 00000 00 00 to 10000 00 00 When Independent Integration Is Disabled The integration timer that you specified above applies to every element When Independent Integration Is Enabled Setting You can select the method for setting the integration timer from the following options Each Setit separately for each input element All Set it for all installed input elements at the same time Element1 to Element6 You can set the integration timers for each element within the range given above Scheduled Times for Real Time Integration Real time Control This setting is valid in real time normal integration mode and real time continuous integration mode You can set the year month day hour minute and second of the integration start and stop times Be sure to set the integration stop time to a time after the integration start time You can set the values within the following ranges Year Any four digit Gregorian calendar value Hour Minute Second
165. inting stops it starts again at the next data update Print Count Print Count This setting is valid when Print Mode is set to Interval Real Time or Event You can set the print count within the following range Infinite or 1 to 9999 Print Interval Print Interval This setting is valid when Print Mode is set to Interval Real Time or Integ Sync You can set print interval hour minute and second within the following range 00 00 10 to 99 59 59 When the print interval is not an integer multiple of the data update interval the print operation behaves in the same manner described in Storage Operation When the Storage Interval Is Not an Integer Multiple of the Data Update Interval P Click here 20 2 IM WT1801 01EN 20 Printing Screen Images and Numeric Data Option Li f you specify a number of measurement functions as items to be printed it may take a long time to print the data Set the print interval to a time that is longer than the time required to print the data e f you touch the keys or execute communication commands during printing printing may slow down Scheduled Start and Stop Times Real Time Control You can configure these settings when Print Mode is set to Real Time You can set the year month day hour minute and second of the print start and stop times Be sure to set the scheduled printing stop time to a time after the printing start time You can set the values within the following ranges
166. ion August 2011 All Rights Reserved Copyright 2011 Yokogawa Meters amp Instruments Corporation IM WT1801 01EN Contents 1 Items That This Instrument Can Measure Measurement Functions Used in Normal Measurement seen 1 1 Harmonic Measurement Functions Option eee nennen 1 3 Delta Computation Functions OPON rieres nns widen rp eee cce Ee E aa 1 5 Motor Evaluation Functions Option seen enm ener 1 5 Auxiliary Input Measurement Functions Option seen 1 5 High Speed Data Capturing Option nennen rennen 1 5 What Isa Measurement Function iiueeciee inrer rnnt ennt a pet Ee LE ae epa hate tu uoa Rena 1 6 Measurement Period scsi aa na EEN EEEE AE EEEE EENE Eni 1 6 2 Fundamental Measurement Conditions Wiring System Settings WIRING sissies sirin rnsracisriai iniinis ensi irtainta aiaa donna 2 1 Wiring System VVIBIEYO eseina a Ear E isset el Lce 2 1 Efficiency Equation rj Formula 2 eite e bases cree einai nae 2 4 Independent Input Element Configuration Element Independent 2 5 Delta Computation A Measure optlon operiert need andi tien cei eor vi ceteri eel 2 6 Selecting an Element Whose Measurement Range You Want to Specify ELEMENT 2 8 Selecting All Input Elements ALL 42 1 avast iet reete cider tere bn Ecran este ze ves ee ERR eU 2 9 Voltage Range RANGE UP DOWN V ssesseeseeenennnenn enne nen
167. ion is U I or P Uhdf Ihdf or Phdf is displayed When the display mode is Numeric the numeric values of two measurement functions are displayed in two separate columns each containing up to 22 numeric values When the display is split the numeric values of two measurement function are displayed in two separate columns each containing up to 12 numeric values Measurement function display area Data concerning all harmonics Harmonic order data display area r ut LVI ut Lv Measurement function 1 Measurement function 2 haf 4 fPlLT U0 9 985 Hz al 1 129 PLL2 U1 9 985 Hz AT 0 000 0 008 0 191 0 000 0 020 0 069 0 000 0 018 0 035 0 000 0 016 0 021 0 000 0 017 0 014 0 000 0 012 0 010 0 000 0 004 0 008 0 000 0 022 0 006 0 000 0 010 0 005 0 000 0 023 0 004 0 000 0 016 0 003 0 000 0 006 0 003 0 000 0 022 0 002 0 000 0 019 0 002 0 000 0 009 0 001 0 000 0 016 0 002 0 000 0 008 0 001 0 000 0 017 0 001 0 000 0 002 0 001 0 000 0 018 Numeric data for each harmonic Distortion factors of each harmonic When the selected measurement function is U I or P Uhdf Ihdf or Phdf is displayed In 7 2 IM WT1801 01EN 7 Numer
168. ion the background will return to its default Simultaneously Loading a Display Configuration File and a Background File Load Items amp Bmp When you select a display configuration file TXT from the file list and load it if there is a background file with a BMP extension and the same name as the display configuration file that file is also loaded gt Click here Li If there is no background file with the same name as the display configuration file in the same directory as the display configuration file an error occurs Display Configuration Edit Items Total Number of Items Total Items You can set the total number of numeric data boxes to display to a number from 1 to 192 Number of Items per Page Items Per Page You can set the total number of numeric data boxes to display per page to a number from 1 to 192 The total number of pages is Total Items Items Per Page The ranges of Total Items and Items Per Page are related as indicated below Total Items Items Per Page to Items Per Page x 12 tems Per Page Total Items 12 to Total Items 7 10 IM WT1801 01EN 7 Numeric Data Display Customizing the Displayed Items Custom Items Item Number to Set Item No Select the number of the item that you want to configure Function Function This is the same as setting the function in the 4 8 and 16 value displays P Click here If you select None you can display a character string in the numeri
169. is connected by GP IB has its own unique address in the GP IB system This address is used to distinguish one device from other devices Therefore you must assign a unique address to the WT1800 when connecting it to a PC or other device O When the controller is communicating with the WT1800 or with other devices through GP IB do not change the address Notes about Connections Several cables can be used to connect multiple devices However no more than 15 devices including the controller can be connected on a single bus When connecting multiple devices you must assign a unique address to each device Use cables that are 2 m or shorter in length to connect devices Keep the total length of the cables under 20 m When devices are communicating have at least two thirds of the devices on the bus turned on To connect multiple devices use a star or daisy chain configuration Loop and parallel configurations are not allowed USB Connects the WT1800 to a PC using USB To remotely control the WT1800 using communication commands through the USB port select USBTMC and then carry out the following procedure Install the YOKOGAWA USB TMC Test and Measurement Class driver on your PC For information about how to obtain the YOKOGAWA USB TMC driver contact your nearest YOKOGAWA dealer You can also access the YOKOGAWA USB driver download webpage and download the driver http tmi yokogawa com service support downloads Do not
170. is set to ON Integration Timer and Print Interval in Continuous Integration Mode and Real Time Continuous Integration Mode Printing is executed whenever the integration timer time elapses Integration Integration time up Forced Auto Print start integration restart integration stop OFF PRINT key PRINT key PRINT key on blinking off Time Printing M A Tp Print interval Data is printed if Print at Start is set to ON Li If integration stops for one of the following reasons printing is executed and Auto Print is automatically set to OFF The integration timer time elapses TimeUp The scheduled stop time is reached Stop in orange text IM WT1801 01EN 20 5 20 Printing Screen Images and Numeric Data Option Event Synchronization Print Mode Printing is executed whenever a user defined event occurs When the time it takes to print is shorter than the data update interval Auto Print Auto Print ON OFF PRINT key PRINT key on off Event occurrence Ta ES E Time Printing T Event occurrence F No event occurrence Td Data update interval Tpe Time it takes to print When the time it takes to print is longer than the data update interval Auto Print Auto Print ON OFF PRINT key PRINT key on off S INS T F i i Ta Ta sla Ta Ta a Ta Ta Tpe Tpe Time gt gt Printing T Event occurrence F No event occurrence Td
171. isplay 1 screen Split display Hrm List Single Hrm List Dual Turning the Display Frame On and Off Display Frame This is the same as turning the display frame on and off in the 4 8 and 16 value displays P Click here IM WT1801 01EN 7 9 7 Numeric Data Display Custom Display Custom Loading a Display Configuration File Load Items On the file list specify a file to load display configuration data from The extension is TXT For information about how to configure the file list display and how to operate files and folders see File Operations Utility gt Click here Loading a Background File Load Bmp On the file list specify a background file to load The extension is BMP If you use a commercial graphics program to create an image that meets the following specifications you can load the image to the WT1800 File format BMP Resolution 800 x 672 pixels Color scale 16 bit high color R 5 bits G 6 bits B 5 bits or 24 bit true color R 8 bits G 8 bits B 8 bits Size Approx 1 MB 16 bit or approx 1 6 MB 24 bit gt Click here o f you attempt to load an image that does not meet the above specifications the image will not be displayed properly or an error message will appear and you will not be able to load the image After you properly load a display configuration file and a background file if you restart the WT1800 and the same background file is not in the same locat
172. isplayed if a measurement function is not selected or if there is no numeric data fUrms Umn Udc Urmn Uac Irms Imn Idc Irmn or lac exceeds 140 of the measurement range OL is displayed to indicate an overload value If the voltage or current exceeds 140 of the measurement range OL is displayed to indicate an overload value for P fthe measured or computed result cannot be displayed using the specified decimal place or unit OF for overflow is displayed When the measured voltage or current value is at or below the percentage of the measurement range indicated below the values of Urms Umn Urmn Irms Imn Irmn and other measurement functions that are based on them are displayed as zero The and functions will return errors Error is displayed When the Crest Factor Is Set to CF3 When Urms Uac Irms or lac is 0 5 or less When Umn Urmn Imn or Irmn is 296 or less When the Crest Factor Is Set to CF6 When Urms Uac Irms or lac is 1 0 or less When Umn Urmn Imn or Irmn is 496 or less lf the analysis window width number of cycles of the fundamental signal that is determined by the fundamental frequency is shorter than the data update interval harmonic data is not measured and no data is displayed If this happens increase the data update interval For example if the data update interval is 50 ms and the fundamental frequency is 10 Hz the period is 100 ms the a
173. it integration such as the integrated active power and apparent power functions return errors Independently Integrated Elements Element Object This setting is valid when independent integration is enabled You can select which elements to start stop and reset the integration of by selecting the elements check boxes All ON All elements are controlled All OFF No elements are controlled Li Even if you enable independent integration when independent input element configuration is disabled the integration of elements in the same wiring unit is controlled simultaneously regardless of whether the elements check boxes are selected Example Elements 1 2 and 3 are assigned to wiring unit 2A as a three phase four wire system Under Element Object the check box of element 1 is selected but the check boxes of elements 2 and 3 are not If you start or stop the integration of element 1 under the above conditions the integration of elements 2 and 3 whose check boxes are not selected also starts or stops To independently control the integration of input elements that are assigned to the same wiring unit you must enable independent integration and independent input element configuration IM WT1801 01EN 9 Integrated Power Watt hours Starting Stopping and Resetting Integration Start Stop Reset You can start stop and reset integration using the soft keys on the front panel or communication commands T
174. l Harmonic Measurement Option The following menu items appear Input element group Element Settings PLL source of group Hrm1 Hrm1 PLL Source Measured harmonic orders of group Hrm1 Min Order Max Order Distortion factor equation of group Hrm1 Thd Formula PLL source of group Hrm2 Hrm2 PLL Source Measured harmonic orders of group Hrm2 Min Order Max Order Distortion factor equation of group Hrm2 Thd Formula PLL Source PLL Source For harmonics to be measured the fundamental period the period of the fundamental signal that will be used to analyze the harmonics must be determined The signal for determining the fundamental period is the PLL phase locked loop source Select the PLL source from the choices below The available options vary depending on the installed elements U1 11 U2 I2 U3 13 U4 14 U5 I5 U6 16 and Ext Clk f you select Ext Clk the frequency of the signal applied to the rear panel s external clock input connector EXT CLK is used as the fundamental frequency for harmonic measurement For the EXT CLK connector specifications see section 4 3 in the getting started guide IM WT1801 03EN IM WT1801 01EN 3 1 3 Harmonic Measurement Conditions Option Li Select a signal that has the same period as the signal that you want to measure the harmonics of For stable harmonic measurement choose an input signal for the PLL source that has as little distortion and fluctua
175. l Sync External Sync You can synchronize the WT1800 with another device during measurement by applying an external sync signal to the external start signal I O MEAS START connector OFF The WT1800 does not synchronize with an external start signal but instead captures data every 5 ms ON The WT1800 captures data in sync with an external start signal For the specifications of the external start signal I O connector see section 4 4 in the getting started guide IM WT1801 03EN Li When External Sync is set to ON the trigger settings are invalid The trigger feature operates as if the trigger mode was set to OFF To measure in sync with an external signal set External Sync to ON and apply a number of pulses equal to or greater than the specified number of data captures 1 to the external start signal I O MEAS START connector To synchronize multiple WT1800s and perform high speed data capturing synchronize a WT1800 on which External Sync has been set to ON to a WT1800 on which External Sync has been set to OFF When you synchronize the WT1800s make sure that they are set to the same number of data captures 16 6 IM WT1801 01EN 16 High Speed Data Capturing Recording to a File Record to File If you set Record to File to ON when high speed data capturing starts the WT1800 saves the following two files in binary format High speed data capturing data file WTS The measured data is saved to this file H
176. ld off and then turn it on again IM WT1801 01EN 8 5 8 Computation User Defined Events User Defined Event User defined events can be used to trigger data storage and automatic printing option You can define up to eight user defined events User Defined Event Number Event No Select a user defined event number from 1 to 8 Turning User Defined Events On and Off Select whether to enable user defined events User Defined Event Name Event Name e Number of characters Up to eight Usable characters Spaces and all characters that are displayed on the keyboard Indication of User Defined Event Occurrence TRUE FALSE Set the character strings to show when a user defined event occurs and when it does not occur Number of characters Up to six Usable characters Spaces and all characters that are displayed on the keyboard Judgment Condition Specification Method Expression Select the method for specifying judgment conditions from the following options Range Range Specify judgment conditions using ranges of measurement function values or differences from a reference value e Condition Condition Specify judgment conditions using user defined events Range Range Specify the judgment condition here when you have set the judgment condition specification method to Range Function Function You can select any of the measurement function types listed under Items That This Instrument Can Measure P Cli
177. lectively or independently Turning Independent Input Element Configuration On or Off For example assume that the wiring system on a model with three input elements is set as follows Input elements 1 to 3 Three phase four wire system 3PAW Input elements 1 to 3 are assigned to a single wiring unit ZA ON The measurement range and sync source can be set independently for each input element included in a wiring unit OFF The measurement range and sync source of input elements 1 to 3 are set to the same setting This is convenient because when you are measuring a three phase device you can set the range and sync source settings of all input elements included in a wiring unit simultaneously Settings That Are Shared between Input Elements When Independent Input Element Configuration Is Turned Off Measurement range including auto range on or off Direct current input or external current sensor input Valid measurement range Synchronization source Input element group for harmonic measurement applies to models with the simultaneous dual harmonic measurement option Settings That Can Be Configured Independently Even When Independent Input Element Configuration Is Turned Off External current sensor conversion ratio option Scaling values VT ratio CT ratio and power coefficient Input filters line filter and frequency filter These settings can be configured independently for each input element regardless o
178. libration On Off Auto Cal Ordinary zero level compensation takes place when the measurement range or line filter is changed but you can also automatically calibrate the zero level during integration ON Zero level compensation takes place approximately once every hour during integration lt OFF Zero level compensation does not take place during integration o When integration auto calibration is on and zero level compensation is in progress the power or current value measured immediately before is integrated Watt Hour Integration Method for Each Polarity WP Type Setting You can select the method for setting the integration method from the following options Each Set it separately for each input element All Set it for all installed input elements at the same time Elementi to Element6 Set the integration method to one of the options below Charge Discharge Measure DC watt hours for each sampled data item by polarity Sold Bought Measure AC watt hours for each sampled data item by polarity For information about the equations used in each method see appendix 1 in the getting started guide IM WT1801 03EN Current Mode for Current Integration q Mode Setting You can select the method for setting the current mode from the following options Each Set it separately for each input element All Set it for all installed input elements at the same time Elementi to Element6 You can select the
179. m scratch Li Only initialize the WT1800 if you are sure that it is okay for all of the settings to return to their initial values You cannot undo an initialization We recommend that you save the setup parameters before initializing the WT1800 Items That Cannot Be Reset The following settings cannot be reset Date and time settings communication settings the menu language setting the message language setting and environment settings To Reset All Settings to Their Default Values While holding down RESET turn the power switch on All settings except the date and time settings display on off setting will be reset will be reset to their factory default values 22 2 IM WT1801 01EN 22 Utility Remote Control Remote Control Communication interface for controlling the WT1800 from a PC GP IB USB and Network are the available communication interfaces For details see the communication interface user s manual IM WT1801 17EN o Only use one communication interface GP IB USB or Network If you send commands simultaneously from more than one communication interface the WT1800 will not execute the commands properly When the WT1800 is in remote mode and is communicating with a PC REMOTE appears in the center of the WT1800 screen All keys except LOCAL are disabled in Remote mode GP IB Connects the WT1800 to a PC using GP IB Address Address You can select a value between 0 and 30 Each device that
180. me time Simultaneous File Selection All Set All Reset Selecting All Files ALL Set When the cursor is on a drive or folder in the file list select ALL Set to select all of the files and folders within the drive or folder that the cursor is on Deselecting All Files ALL Reset All of the selected files and folders are deselected Jumping to a Specified File or Folder Jump To You can make the cursor jump to a file or folder at a specified numeric position in the file list The numeric position at the top of the file list is O Range 0 to 999 Other Operations More You can select from the following operations Sort To Sort the file list Display Type Select the display format list or thumbnail Filter Select the type of file to list Change Drive Change the storage medium Executing an Operation Execute the operation that you specified for the Operation setting IM WT1801 01EN 18 7 19 Saving Screen Images You can save screen image data to files in BMP PNG and JPEG formats Conditions for Saving Screen Image Data IMAGE SAVE MENU File List Display and Save Destination Settings File List On the file list specify the save destination For information about how to configure the file list display and how to operate files and folders see File Operations Utility P Click here 0 When you turn off the WT1800 power the contents of the internal RAM disk are lost Save the contents of th
181. ment option or the simultaneous dual harmonic measurement option Turning Electrical Angle Measurement On and Off Select whether to measure electrical angles Electrical Angle Correction Electrical Angle Correction Set the electrical angle correction value Correction Value Correction Value Set the correction value to a number from 180 00 to 180 00 Clearing the Correction Value Clear Correction Set the correction value to 0 00 Automatically Computing the Correction Value Auto Enter Correction The WT1800 automatically sets the correction value to the difference between the phase of the voltage or current whose correction value is being automatically computed and the current electrical angle phase Voltage or Current to Automatically Compute the Correction Value of Auto Enter Target Select the voltage or current to automatically compute the correction value of from the options below The available options vary depending on the installed elements U1 11 U2 12 U3 13 UA I4 U5 15 U6 and I6 4 8 IM WT1801 01EN 4 Motor Evaluation Conditions Option Motor Efficiency and Total Efficiency Computation The WT1800 can compute the motor efficiency the ratio of power consumption to motor output and total efficiency from the active power and motor output that it measures You can set the efficiency equation using the n Formula setting P Click here The total efficiency is the ratio of total powe
182. monic order data display area from the following options U I P S Q A OU OI Z Rs Xs Rp and Xp Direct Function Selection U I P S Q A WP q TIME FU Fl n and U I MODE Directly select the measurement function to show in the harmonic order data display area This is the same as direct function selection in the 4 8 and 16 value displays However when you are displaying the single harmonics or dual harmonics list you can only select measurement functions that have harmonic order data You can press U I P to select U or P You can press S Q A 0 to select S Q A 6 BU or OI WP q TIME FU Fl n and U I MODE are invalid Element Element 2 You can select the element or wiring unit to display in the harmonic order data display area This is the same as setting the element in the 4 8 and 16 value displays P Click here Directly Selecting Elements ELEMENT You can select the element or wiring unit to display in the harmonic order data display area This is the same as direct element selection in the 4 8 and 16 value displays gt Click here Order The Total value and 0 DC order numeric data is always displayed at the top of the harmonic order data display area To switch between the displays of the numeric data for harmonic orders 1 to 500 press PAGE UP and PAGE DOWN or use the up and down cursor keys The number of harmonic orders that switch when you change the page is indicated below Normal d
183. monic orders of MU and Ol where the screen display is also blank Functions AU1 to AP2 are stored according to the delta computation option type that you selected in the delta computation settings When the WT1800 automatically changes the range during storage because measured data cannot be acquired the store operation is paused and no measured data is stored After the WT1800 finishes changing the range storage resumes You cannot use the auto print feature during storage 17 10 IM WT1801 01EN 18 Saving and Loading Data You can save numeric data waveform display data screen image data and setup parameters to USB memory or a network drive For information about saving screen image data see Saving Screen Images P Click here You can load the setup data from a storage medium into the WT1800 You can also rename copy and delete data files Using a PC to Load Numeric Data Waveform Display Data or Screen Image Data WT1800 Screen image data Online Waveform display data aveform display data Numeric data Online Numeric data Binary format wtw conversion Waveform display data Internal RAM disk Binary format wts hds USB memory Binary format wts hds Numeric data Offline ASCII format csv ASCII format csv Numeric data r Numeric data Waveform display datar Waveform display data pray Offline
184. n Fixed Ranges When the current range is fixed you can select a range from the available options The selected current range does not change even if the amplitude of the input signal changes Set the range in reference to the rms value of the input signal When the Crest Factor Is Set to CF3 You can select from 50 mV 100 mV 200 mV 500 mV 1 V 2 V 5 V and 10 V When the Crest Factor Is Set to CF6 You can select from 25 mV 50 mV 100 mV 250 mV 500 mV 1 V 2 5 V and 5 V Auto Range This is the same as the auto range feature for voltage P Click here 2 12 IM WT1801 01EN 2 Fundamental Measurement Conditions External Current Sensor Conversion Ratio SENSOR RATIO option Set the conversion ratio used to measure the signal received by the external current sensor input connector EXT from a current sensor that produces voltage Set how many millivolts the current sensor transmits when 1 A of current is applied conversion ratio Then the input signal can be made to correspond to the numeric data or waveform display data that is obtained when the current is directly applied to the input terminals When using a current sensor that produces current set the conversion ratio as the CT ratio P Click here Measurement Function Conversion Data before Transformation Ratio Transformation Result Current I E Is current sensor output Is E Active power P E Ps Ps E Apparent power S E Ss Ss E Reactive power Q E Qs
185. n The storage mode is set to Manual and the storage interval is not 00 00 00 The storage mode is set to Real Time and the storage interval is not 00 00 00 The storage mode is set to Integ Sync IM WT1801 01EN 17 3 17 Data Storage Stored Items Item Settings You can set which numeric data items to store You can choose to store the displayed numeric items Displayed Numeric Items or the selected items Selected Items Displayed Numeric Items Displayed Numeric Items The numeric data items displayed on the screen are stored The stored items vary as indicated below depending on the display When Numeric Values Are Displayed in the 4 8 or 16 Value Display or the Matrix Display All the measurement functions on the page that is displayed when storage starts are stored in the order that they are displayed When Numeric Values Are Displayed in the Single or Dual Harmonics List In addition to the data described above the data of harmonics that are not displayed on the screen is stored up to the maximum measurable order Max Order When Numeric Values Are Displayed in the All Items or Custom Display Storage cannot be performed An error message is displayed at store start n Non Numeric Displays Waveform display trend display etc The WT1800 stores data according to the numeric display settings For example when the waveform display is shown if the 16 value display would appear when you pressed NUMERIC then
186. n error message is displayed n Non Numeric Displays Waveform display trend display etc The WT1800 saved data according to the numeric display settings For example when the waveform display is shown if the 16 value display would appear when you pressed NUMERIC then the data for the measurement functions on the page of the 16 value display that would appear is saved Selected Items Selected Items You can select the types of numeric data to save Items Items If you selected Selected Items select which numeric data to save Element Element To select an element or wiring unit that you want to store the data of select or clear its check box You can select from the following options Element1 Element2 Element3 Element4 Element5 Element6 2A 2B and C Function Function Select whether to store the data of a function by selecting or clearing its check box You can select any of the measurement function types listed under Items That This Instrument Can Measure P Click here Selecting All Functions All ON The data of all measurement functions is saved Deselecting All Functions All OFF None of the data for any of the measurement functions is saved e Preset 1 Preset 1 The data of the following measurement functions is saved for all elements and wiring units Urms Irms FreqU Freql P S Q A and Preset 2 Preset 2 The data of the following measurement functions is saved for all elements
187. nalysis window will be 1 wave wide see section 6 6 in the getting started guide IM WT1801 03EN and the data measurement interval will be 100 ms In this case the time required for harmonic measurement is approximately 150 ms or greater data measurement interval data processing time To measure and display harmonic data set the data update interval to a value greater than or equal to 200 ms There is no overload value indication OL or zero indication suppression to zero for the numeric data of harmonic orders 0 DC to 500 If the measured frequency is outside the measurement range the fU or fl function returns an error Error is displayed e If the power factor A is greater than 1 and less than or equal to 2 A returns 1 returns zero e IfA is greater than 2 and return errors Error is displayed 4 8 and 16 Value Displays 4 Items 8 Items 16ltems Item Number to Set Item No Select the number of the item that you want to configure Function Function You can select any of the measurement function types listed under Items That This Instrument Can Measure P Click here If you select None no measurement function is displayed for the selected item Direct Function Selection U I P S Q A WP q TIME FU FI n and U I MODE When the menu is not displayed you can change which of the selected measurement functions is displayed using the function select keys U I P S Q M WP q TIME FU
188. nctions That Do Not Perform Averaging The following measurement functions do not perform averaging Measurement Functions Used in Normal Measurement fU fl U pk U pk I pk I pk P pk P pk Time WP WP WP WP2 WP 2 WP WS WQ and SyncSp on models with the motor evaluation option Measurement Functions Used in Harmonic Measurement Option U k Ol k GUi Uj GUi UKk Uili oUj lj DUk Ik fPLL1 fPLL2 EaU and Eal Kk The harmonic order Measurement Functions Used in Normal and Harmonic Measurement Option F1 to F20 and Event 1 to Event 8 Li When averaging is turned on the average value of multiple measurements is determined and displayed If the input signal changes drastically it will take longer for the change to be reflected in the measured values when averaging is used Alarger attenuation constant for exponential averaging or average count for moving averages will result in more stable and less responsive measured values Displaying the Setup Parameter List INPUT INFO The setup parameter list appears in the top half of the screen Display Format FORM Input Element Settings List Power Element Settings The wiring system measurement range scaling factor synchronization source line filter and frequency filter settings for each element are displayed Measurement Range Settings List Range Settings The measurement range settings for each element are displayed Measurement ranges that hav
189. nctions Used in Harmonic Measurement Option f averaging is turned on and the averaging type is Exp exponential averaging averaging is performed on harmonic measurement functions Evenif averaging is turned on if the averaging type is Lin moving average averaging is not performed on harmonic measurement functions 2 20 IM WT1801 01EN 2 Fundamental Measurement Conditions Averaging Types Type You can use exponential or moving averages Exponential Averaging Exp With the specified attenuation constant the numeric data is exponentially averaged according to the equation below Mn Dn 1 K Dn Dn 1 Dn Displayed value that has been exponentially averaged n times The first displayed value D1 is equal to M1 Dn 1 Displayed value that has been exponentially averaged n 1 times Mn Measured data at the n time K Attenuation constant select from 2 to 64 Moving Average Lin The specified average count is used to compute moving averages according to the equation below Mn m 1 e Mn 2 Mn 1 Mn m Da n m 1 to the n time Mn m 1 Measured data at the n m 1 time Dn Mn 2 Measured data at the n 2 time Mn 1 Measured data at the n 1 t time Mn Measured data at the n time m Average count select a number from 8 to 64 Attenuation Constant or Average Count Count Ifthe averaging type is Exp exponential averaging set the attenuation constant to a value
190. nect the external start signal input output connectors MEAS START of the master and slave instruments using a BNC cable sold separately You can synchronize the measurement of two WT1800s making one WT 1800 the master and the other WT1800 the slave The master outputs a measurement start signal and the slave receives the signal For the specifications of the external start signal input output connectors see section 4 4 in the getting started guide IM WT1801 03EN Li The measurement of the master and slave cannot be synchronized under the following conditions When the data update interval differs between the master and slave During real time integration mode or real time storage mode Follow the procedure below to hold the display during synchronized measurement To hold the display Hold the display of the master first Tounhold the display Unhold the display of the slave first 8 10 IM WT1801 01EN 8 Computation Voltages or Currents Whose Frequencies Will Be Measured FREQ MEASURE Select the three voltages or currents to measure the frequencies of from the options below The available options vary depending on the installed elements U1 11 U2 12 U3 13 UA I4 U5 15 U6 and I6 On models with the add on frequency measurement option the frequencies of the voltages and currents of all elements can be measured so there is no need to set which frequencies to measure Thus even if you press SHIFT MEASURE
191. nen enne renis 2 9 Auto Voltage Range AUTO V eet reete ent nete DM Rr Ebert ee a 2 10 Current Range RANGE UP DOWN A sese meme nennen erre 2 11 Auto Current Range AUTO oc in true r pto nea eere So eren Er e ERE M eer Ehre e spine 2 11 eV dich c e 2 12 External Current Sensor Range EXT SENSOR option em 2 12 External Current Sensor Conversion Ratio SENSOR RATIO option 2 13 External Current Sensor Range Display Format DIRECT MEASURE option 2 14 scaling SCALING e HT 2 14 Valid Measurement Range CONFIG V CONFIG A cesse enne 2 16 Crest Factor Crest Factor inii ie ra diee fe noe Pee ee ec reete hea 2 17 Measurement Period SYNC SOURCE sssesseeeeeeennenen nennen nennen nennen enne 2 18 Line lcwiBbsai yz EAN CERE EES ETa INNEIN 2 19 Frequency Filter FREQ FIETE aita croceo et aep cru nnt tig E Eae 2 19 Data Update Interval UPDATE RATE sssssseeeneeene nem emen nennen nnnm eere 2 20 Averaging AVG ms 2 20 Displaying the Setup Parameter List INPUT INFO seesem em 2 22 3 Harmonic Measurement Conditions Option Harmonic Measurement Conditions HRM SET eene ener 3 1 PEL Source PLL SoUfCe eter e aden edere boi ete re ened 3 1 Measured Harmonic Orders
192. ntegration Conditions Integ Set You can configure the following integration conditions Integration mode Mode Integration timer Integ Timer Scheduled times for real time integration Real time Control Integration auto calibration on off Auto Cal Watt hour integration method for each polarity WP Type Current mode for current integration q Mode Rated time of integrated D A output D A Output Rated Time option Integration Mode Mode The integration feature has the following five modes Integration mode Start Stop Repetition Manual integration mode Key Key Meme epson uem aera pamon rime Normal operation the timer Continuous integration mode Key Key Repeats when Continuous operation loperation the timer expires Real time normal integration mode Date and Date and R Normal time time R Continuous time time the timer expires Manual integration mode When you set the integration mode to normal integration mode Normal and set the integration timer to 00000 00 00 the WT1800 performs integration in manual integration mode After integration is started it continues until you press Stop However if either of the conditions below is met integration is stopped and the integration time and integrated value are held The integration time reaches the maximum integration time 10000 hours The integrated value reaches its maximum or minimum displayable value Hol
193. oes not function Therefore the signal level of the waveform display at the left end of the screen may not be stable During integration the shortest possible waveform data update interval is 1 s If you select an update interval shorter than 1 s the numeric data and waveform data will contain measured values for different measurement periods IM WT1801 01EN 9 3 9 Integrated Power Watt hours Enabling or Disabling Independent Integration Independent Control You can select whether to start stop and reset integration on all elements simultaneously or separately OFF Integration starts stops and is reset simultaneously on all elements ON Integration works differently depending on the independent input element configuration Element Independent setting When independent input element configuration is disabled Elements whose wiring system is 1P2W are controlled separately For elements whose wiring system is not 1P2W integration starts stops and is reset at the same time for all elements in the same wiring unit When independent input element configuration is enabled The integration of each element is controlled separately O When independent integration and independent input element configuration are enabled and integration is controlled separately for elements in the same wiring unit because the elements integration periods differ the functions for those elements the functions that deal with wiring un
194. of the input range x the revolution scaling factor x the input signal slope this is the rated value For example when the input range is 10 V if the scaling factor is set to 100 rpm per 1 V of input voltage the output is 5 V when the rotating speed is 1000 rpm The output for a pulse rotating speed signal is 5 V when the rotating speed reaches the value specified for Pulse Range Upper x 1 this is the rated value and the output is 5 V when the rotating speed reaches the value specified for Pulse RangeUpper The output for a pulse torque signal is 5 V when the torque reaches the value specified for Pulse Range Upper x 1 this is the rated value and the output is 5 V when the torque reaches the value specified for Pulse RangeUpper The output for SyncSp is 5 V when SyncSp is at the rated value for Speed The output for Pm is 5 V when Pm reaches the motor output value obtained from the rated values for the torque and rotating speed The output for Aux1 or Aux2 is 5 V when Aux1 or Aux2 reaches the value of the input range x the scaling factor for Aux1 or Aux2 x the input signal slope this is the rated value Speed and torque waveforms are available on models with the motor evaluation option Aux1 and Aux2 waveforms are available on models with the auxiliary input option 22 10 IM WT1801 01EN 22 Utility Self Test Selftest You can test the keyboard and memory operations Test Items Test Item You c
195. oltage signal of element 2 U2 1 In the same way Ui Uk Ui li GUj lj and GUK Ik represent to DU1 U3 PU1 11 DU2 I2 and OU3 I3 respectively 2 Setting i to an input element is the same as setting k to 1 in k IM WT1801 01EN 1 3 1 Items That This Instrument Can Measure Harmonic Measurement Function Orders The harmonic orders that you can specify are indicated below Input Element Harmonic Measurement Functions Measurement Characters or Numbers in Parentheses Function Total 0 DC 1 k UC Yes Yes Yes 2 to 500 Yes Yes Yes 2 to 500 P Yes Yes Yes 2 to 500 S Yes Yes Yes 2 to 500 Q Yes Fixed at 0 Yes 2 to 500 X Yes Yes Yes 2 to 500 o Yes No Yes 2 to 500 U No No No 2 to 500 ol No No No 2 to 500 Z No Yes Yes 2 to 100 Rs No Yes Yes 2 to 100 Xs No Yes Yes 2 to 100 Rp No Yes Yes 2 to 100 Xp No Yes Yes 2 to 100 Uhdf No Yes Yes 2 to 500 Ihdf No Yes Yes 2 to 500 Phdf No Yes Yes 2 to 500 Uthd Yes No No No Ithd Yes No No No Pthd Yes No No No Uthf Yes No No No Ithf Yes No No No Utif Yes No No No Itif Yes No No No hvf Yes No No No hcf Yes No No No K factor Yes No No No Functions with parentheses will produce different values depending on which of the following is contained in their parentheses Total Total value The total value of all harmonic components from the minimum order to N For information about how the value is determined see app
196. ompute a User Defined Function User Defined Function Name Name Number of characters Up to eight Usable characters Spaces and all characters that are displayed on the keyboard Unit Unit Number of characters Up to eight Usable characters Spaces and all characters that are displayed on the keyboard IM WT1801 01EN 8 1 8 Computation Expression Expression Operation Type You can use combinations of measurement functions and element numbers e g Urms1 as operands to configure up to 20 equations F1 to F20 There can be up to 16 operands in 1 equation The different types of operands are listed below measurement function operand Normal Measurement Voltage current and power Urms URMS Umn UMN Udc UDC Urmn URMN Uac UAC U pk UPPK U pk UMPK CfU CFU fU FU Integrated power Wp WH Wp WHP Wp WHM Efficiency Irms IRMS Imn IMN Idc IDC Irmn IRMN lac IAC I pk IPPK I pk IMPK Cfl CFI fl FI q AH q AHP q AHM n1 ETA1 to n4 ETA4 User defined functions F1 F1 to F20 F20 User defined events Ev1 EV1 to Ev8 EV8 Harmonic Measurement Option U k UK S k SK U k UPHI Z k ZK Uhdf k UHDF Uthd UTHD Uthf UTHF Utif UTIF hvf HVF fPLL1 PLLFRQ1 U1 U2 PHIU1U2 U2 12 PHIU2I2 I IK Q k QK
197. onnant slope auxiliary Input coercere a slope motor evaluation ssssssene SNTP iiiie sepes Source split display d star delta transformation esses Star Delta retener te tenerte starting harmonic order iss starting high speed data capturing ssusss 16 9 Start ordet osian TS 12 2 stopping high speed data capturing sss 16 9 Corp PC 17 1 Storage resetting au d 7 Storage Starih coer cytes cactesesacs eneneseeesoces EEN 17 6 storage S OPPIN iiaii nte eani ta 17 7 storage conditions 17 1 storage control 17 2 storage count au 47 2 storage interv al 2 2 tree He eio Da 17 3 storage MODS sie son seti tton dics bx eaten coda a 17 2 store at start 17 3 stored items 17 4 store reset es 17 7 jog C M 17 1 Store Start coner rrr ee e REESE 17 6 store stop 17 7 Cle 7 11 synchronization source motor evaluation 4 5 synchronized measurement seessssessee 8 10 SYNChrOnOUS Speed ndi ade ideae 4 7 Sync measure T SYNC SOUC E e SYNC SOU io ae SVME Speed aeui edd tidie dati buese iua acess 4 7 System config 22 5 System overview 222 SyStem sSeltihgs rsen cde ep Sede Dee s 22 5 T
198. ooas iaaa aniani file save condition s r5 dps UEM DAE soneesenicenendeipaiimmaidn rig file settings stets 166 175 LEM waveform i Por MEN MM 741 ITEM vector SpE E a 7 11 itemiSettings oco E cereo une FORM high speed data capturing 16 4 FORM numeric data n T4 JL Page ien Mr p 11 2 judgment CoDdillOn occorre ete eee 8 6 FORM bar graph FORM WaVefOFTIt icic ciiin tei cir c rrr K Page FORM VORTON segist emrenin E EO 23 3 fOr Atis a a a EREQ EIETER uror ES FREQ MEASURE CD 0 Page Trequenocy fiter issnin aE LAN QWAG Esia a iE 22 6 frequency measurement sse 8 11 OD M n 22 6 frequency measurement source sssssssssses 4 7 LCD adjustment 22 6 H M 10 5 Index 2 IM WT1801 01EN linear Scale cet EC ee reb Vo Deci esee dts P Page linear scale motor evaluation URL ee linear scaling auxiliary input P P COMPIESSION 2 veces ici aaiae anaa pein eR cto rues 10 3 line filter PAGE DOWN satusenexisenceseitiiensetemonitenplenpiem tients 7 3 line filter auxiliary input 5 3 PAGE END 7 3 line filter motor evaluation desde ol zh id linKage eon ritenere rte eee readers peanas Du O A se M Cm pacc i paper feeditig rien etico eer n EE 20 3 Oda NNNM MEUM Pc fotimula nce deep
199. or Single Shot Scheduled Storage Times for Real Time Storage Mode Real Time Control These settings are only valid when the storage mode is set to Real Time You can set the year month day hour minute and second of the storage start and stop times Be sure to set the storage stop time to a time after the storage start time You can set the values within the following ranges Year Any four digit Gregorian calendar value Hour Minute Second 00 00 00 to 23 59 59 Now The scheduled storage start time is set to the current time Copy The scheduled storage start time is copied into the scheduled storage stop time Li You can set the day for the scheduled start or stop time in February to a value as high as the 31st day If you do so an error message will appear when you start storage Reset the scheduled start and stop times The WT1800 recognizes leap years when it executes the storage operation Trigger Event for Event Synchronized Storage Mode Trigger Event This setting is only valid when the storage mode is set to Event You can select the user defined event whose occurrence will cause storage to start If you select a disabled user defined event storage cannot start For information about configuring user defined events see User Defined Events P Click here Storage of the Numeric Data at Store Start Store At Start Select whether to store the numeric data at store start You can configure this setting whe
200. or all elements and wiring units WP WP WP q q q Time WS and WQ If the wiring system setting Wiring is configured so that a wiring unit does not exist the data for the functions of that wiring unit is not stored For example if 2C does not exist the data for 2C is not stored 17 4 IM WT1801 01EN 17 Data Storage Save Conditions File Settings Stored measurement data is saved to files in binary format with wts extensions Measurement conditions settings and storage information are saved in binary format to header files with hds extensions File name extensions are added automatically When the storage destination is a USB memory device the maximum stored data file wts file size is 1 GB You cannot load stored data using the WT1800 P Click here Displaying a File List and Specifying the Save Destination File List On the file list specify the save destination You can set the storage medium to the internal RAM disk or to a USB memory device You cannot set the storage medium to a network drive For information about how to configure the file list display and how to operate files and folders see File Operations Utility gt Click here O If you set the storage medium to a USB memory device when you remove the USB memory device the storage medium automatically changes to the internal RAM disk Automatic CSV Conversion Auto CSV Conversion You can choose whether to automatic
201. orage continues until the storage count or the scheduled storage stop time ntegration synchronized storage mode Integ Sync Storage continues until the storage count is reached and then storage is completed Cmpl When integration stops the following occurs fintegration cannot be restarted without being reset the storage state changes to Stop e lfintegration can be restarted without being reset the storage state changes to Ready Event synchronized storage mode Event Storage continues until the storage count is reached Single shot storage mode Single Shot Storage continues until the storage count is reached After storage is completed the following occurs The STORE STOP key illuminates and Store Cmpl appears in the upper left of the screen Writing to the stored data file wts and header file hds finishes and the files are closed When automatic CSV conversion Auto CSV Conversion is enabled an ASCII format stored data file csv is created o Storage will stop before the specified storage count if the storage destination runs out of available memory or the stored data size exceeds the maximum value 1 GB Resetting Storage STORE RESET When you reset storage the WT1800 enters into the reset store state in which the store state indicator is blank f you reset storage when the store state is Stop writing to the stored data file wts and header file hds finishes and the files a
202. orage ready state the STORE START key blinks and Store Ready appears in the upper left of the screen After storage is reset a stored data file wts and header file hds are created when storage starts again When the storage state is Stop you can restart storage When you restart storage the stored data continues to be written to the file from before storage was stopped When the store state is Cmpl you cannot restart storage until you reset it After you reset storage and then start it a new stored data file is created and written to 17 6 IM WT1801 01EN 17 Data Storage stepping Storage STORE STOP You can temporarily stop storage by pressing STORE STOP When storage stops the STORE STOP key blinks and Store Stop appears in the upper left of the screen e When the storage count is zero and the WT1800 is in a storage ready state Ready and you press STORE STOP storage is reset The storage data file wts and storage header file hds are deleted This state can occur in real time storage mode when you have pressed STORE START but the scheduled storage start time has not yet arrived the storage operation has not begun Ending Storage Depending on the storage mode storage automatically stops and the storage state changes to Cmpl under one of the following conditions Manual storage mode Manual Storage continues until the storage count is reached Real time storage mode Real Time St
203. ottom half of the screen When the display is split and the All Items display is shown you can switch between all pages including page 1 in order In the Single Harmonics List and Dual Harmonics List Displays You can switch separately between the pages of the measurement function display on the left side of the Screen and the harmonic order data display on the right side of the screen Use the left and right cursor keys to select the display whose pages you want to switch between In the Custom Display When you have configured the custom display to contain multiple pages you can switch between each of the pages Jumping to the First or Last Page PAGE TOP PAGE END Y The last page is displayed E The first page is displayed IM WT1801 01EN 7 3 7 Numeric Data Display Number of Displayed Digits Display Resolution The number of displayed digits display resolution for voltage current active power apparent power reactive power and so on is as follows e If the value is less than or equal to 60000 Five digits e If the value is greater than 60000 Four digits For details see appendix 4 in the getting started guide IM WT1801 03EN When the range rating rated value of the specified measurement range is specified the functions of the voltage current active power apparent power reactive power and so on are set to the decimal place and unit of the element with the lowest number of displayed digits displa
204. out the measurement period for computing measurement functions see Measurement Period SYNC SOURCE P Click here 1 6 IM WT1801 01EN 2 Fundamental Measurement Conditions Wiring System Settings WIRING The wiring system settings are listed below Wiring system Wiring Efficiency equation n Formula Independent input element configuration Element Independent Delta computation A Measure option Wiring System Wiring There are five wiring systems available on the WT1800 The selectable wiring systems vary depending on the number of installed input elements e 1P2W Single phase two wire system 1P3W Single phase three wire system e 3P3W Three phase three wire system e 3PAW Three phase four wire system 3P3W 3V3A Three voltage three current method Wiring Unit Wiring units are sets of two or three input elements of the same wiring system that are grouped together You can define up to three wiring units ZA 2B and 2C When there is one wiring unit that unit is A You cannot make 2B or 2C the first wiring unit When there are two wiring units those units are 2A and 2B You cannot make 2C one of the first two wiring units When there are three wiring units those units are 2A 2B and 2C When there are multiple wiring units element numbers are assigned to them in ascending order The element numbers are assigned to 2A 2B and then 2C Wiring units are composed of input element
205. peed Data Capturing High Speed Data Capturing OTHERS High Speed Data Capturing Models with the high speed data capturing option can measure every 5 ms and save the measured data to a file Also you can synchronize the WT1800 with another device during measurement by applying an external sync signal to the external start signal I O MEAS START connector High speed data capturing takes advantage of the fact that in a balanced three phase circuit the instantaneous values of the three phases of the rms voltage Urms2 the rms current Irms2 and the power P2 add up to a direct current For a three phase three wire system or three phase four wire system the WT1800 can measure the rms voltage Urms2 the rms current Irms2 and the power P at a high response speed In an unbalanced three phase circuit the measured values fluctuate This indicates that the power consumed by the load varies instantaneously When the measured values fluctuate you can stabilize the measured voltage U current I and power P values for each element and the measured Umean Imeanz Ur mean and Ir mean values for each wiring unit by setting a low cutoff frequency for the HS filter However if you set a low cutoff frequency for the HS filter the response to changes in the measured values becomes slower Display Indications for High Speed Data Capturing File Recording State High Speed Data Capturing State Scaling Line Filter Captured AVG Fr
206. play and the display that you assigned to the bottom half of the screen in the split display Likewise press ITEM to switch between ITEM menus IM WT1801 01EN 14 1 15 Cursor Measurement Cursor Measurement CURSOR You can place cursors on displayed waveforms trends and bar graphs and display the values at the cursor locations Example of cursors in the waveform display Cursor 2 Cursor 1 You can set the following items Turning Cursor measurement on and off Cursor Waveform measured by cursor 1 C1 Trace Waveform measured by cursor 2 C2x Trace Cursor path Cursor Path Position of cursor 1 C1 Position Position of cursor 2 C2x Position Linking cursor movement Linkage Turning Cursor Measurement On and Off Cursor ON Cursor measurement is performed OFF Cursor measurement is not performed Waveform Measured by Cursor 1 C1 Trace This item only appears in the waveform and trend displays It does not appear in the bar graph display In the Waveform Display You can select the waveform to measure with cursor 1 from the following options The available options vary depending on the installed elements U1 11 U2 I2 U3 I3 U4 I4 U5 I5 U6 16 Speed Torque Aux1 and Aux2 2 1 Speed and torque waveforms are available on models with the motor evaluation option 2 Aux1 and Aux2 waveforms are available on models with the auxiliary input option In the Trend Di
207. ption Common Settings Unrelated to the Signal Type Scaling factor Unit Motor poles Sync speed frequency measurement source Analog Input Range Set the analog input range for input signals whose type has been set to analog For input signals whose type has been set to pulse there is no need to set the analog input range Turning Auto Range On and Off Analog Auto Range Select whether to turn auto range on or off When auto range is on the WT1800 automatically switches between the following ranges according to the size of the input signal 20V 10 V 5 V 2 V and 1 V Range Increase The measurement range is increased when the rotating speed signal or torque signal exceeds 110 of the measurement range The measurement range is increased when the peak value of the input signal exceeds 150 of the measurement range Range Decrease The measurement range is decreased when the rotating speed signal or torque signal falls below 3096 of the measurement range and the peak value of the input signal is less than 12596 of the lower range Li When non periodic pulse waveforms are applied during auto range the range may not remain constant If this happens use the fixed range setting Fixed Range Analog Range You can select one of the following input ranges 20V 10V 5V 2V or1V Linear Scaling of Analog Input You can set the slope and the offset value of the input signal using one of the following two methods S
208. put condition using the WT1800 internal circuit and setting the level at that point to the zero level It must be performed to meet the specifications of this instrument Pressing CAL executes zero level compensation The WT1800 automatically performs zero level compensation after you change the measurement range or input filter Li To make accurate measurements we recommend that you execute zero level compensation after warming up the instrument for at least 30 minutes Also the ambient temperature should be stable and within the specified range see chapter 6 in the getting started guide IM WT1801 03EN fthe measurement range and input filter remain the same for a long period of time the zero level may change due to the changes in the environment surrounding the WT1800 If this happens we recommend that you execute zero level compensation There is a feature that automatically performs zero level compensation during integration integration auto calibration P Click here NULL Feature NULL SET You can use the NULL feature to subtract the DC offset while a measurement cable or external sensor is connected Items to Configure NULL Settings for Target Element All Each time you press NULL you can enable or disable the NULL feature for all the following input signals U and I signals of each element Speed and Torque signals on models with the motor evaluation option e Aux1 and Aux2 on models with the auxili
209. r month and day as its name and data is saved to files in that folder whose names are specified by the auto naming feature If the number of files in the save destination folder exceeds 1000 a new folder is automatically created with the date and an incremented sequence number 000 to 999 as its name and the data continues to be saved in the new folder File Name File Name You can set the common file name that is used when the auto naming feature is turned off or when the auto naming feature is set to Numbering The maximum number of characters that you can use for file names and folder names is 32 characters The following restrictions apply The following types of characters can be used 0 to 9 Ato Z a toz 4 L 96 amp and cannot be entered consecutively The following character strings cannot be used due to MS DOS limitations AUX CON PRN NUL CLOCK LPT1 LPT2 LPT3 LPT4 LPT5 LPT6 LPT7 LPT8 LPT9 COM1 COM2 COM3 COM4 COM5 COM6 COM7 COM8 and COM9 Make sure that the full file path absolute path from the root directory is less than or equal to 255 characters in length If it exceeds 255 characters an error occurs when you perform a file operation such as save copy rename or create folder When an operation is being performed on a folder the full path is up to the name of the folder When an operation is being performed on a file the full path is up to the name of the file Th
210. r consumption not just the power consumption of the motor but also the power consumption of the converter that supplies the motor with power to motor output The following is an example of how the values are computed When the Motor Input Is Wired to ZA Motor output Pm W Motor efficiency 96 PIAW 9 x100 PZA Motor power consumption Motor il Motor output Pm When the Converter and Motor Inputs Are Wired to ZA and ZB Respectively Motor output Pm W F Opis Motor efficiency PSB x100 Motor output Pm W Of Total efficiency 96 PEA W x100 PZA Motor and converter power consumption _Converter inverter etc Motor power When the Converter and Motor Inputs Are Wired to ZB and ZA Respectively Motor output Pm W T Motor efficiency PEA W x100 Motor output Pm W yy Total efficiency PZB W x100 PZB Motor and converter power consumption Li If ZA or 2B is a three phase three wire 3P3W system you can use delta computation to perform 3P3W gt 3V3A transformation on A and 2B From the 3P3W gt 3V3A transformation you can determine one unmeasured line voltage and one unmeasured common mode current Converter PZA inverter etc Motor power consumption g Motor output Pm IM WT1801 01EN 4 9 5 Auxiliary Input Conditions Option Auxiliary Input Conditions MOTOR AUX SET
211. r time elapses and the integrated values are reset In the above example the integration timer is set to 20 s so the data is stored after 20 s have passed and then the integrated values are reset Operations when Values Are Held If you press HOLD after storage has been started the displayed values are held and storage is performed as indicated below When the storage mode is set to Manual and the storage interval is 00 00 00 when the storage mode is set to Real Time and the storage interval is 00 00 00 or when Storage Mode is set to Event The storage operation stops but integration does not When the storage mode is set to Single Shot The held display values are stored Even during integration the held display values are stored n All Other Cases The held display values are stored During integration the values being measured are stored Li Media access indication icon only illuminates when the WT1800 creates files at the start of storage and closes them at the end of storage but the WT1800 is actually always accessing the storage medium During the period between when the files are created and when they are closed do not remove the USB memory or turn off the power Doing so may damage the storage medium and corrupt its data When a point has no numeric data NAN OL OF ERROR or a blank space will be stored instead The places that contain blank spaces are in measurement functions such as the ones for the Oth DC and 1st har
212. rated time of integrated D A output in manual integration mode The timer time in normal or continuous integration mode Other Items Displayed Output err A xd D A output rox 7 100 PP 50V Approx 7 5 V Approx 7 0 V 777777677 0 0v 100 5 0V 5 0V gt 7 140 Approx 7 0 V 140 100 0 100140 Displayed value Sedes 5 0 V a HIR Approx 7 0 V DOMUM IET Approx 7 5 V The outputs for A EaU and Eal do not exceed 5 V When the display format of is set to 360 degrees the output for ranges from 0 V to 5 V When the display format of is set to 180 degrees lagging 180 to leading 180 the output for ranges from 5 V to 5 V However when an error occurs the output is approximately 7 5 V Only the outputs for U pk and I pk are approximately 7 5 V when an error occurs The outputs for n to n Uhdf Ihdf Phdf Uthd Ithd Pthd Uthf Ithf hvf hcf and Slip are 5 V at 100 The outputs for Utif and Itif are 5 V at 100 The output for an analog torque signal is 5 V when the torque reaches the value of the input range x the torque scaling factor x the input signal slope this is the rated value For example when the input range is 10 V if the scaling factor is set to 1 Nem of torque per 1 V of input voltage the output is 5 V when the torque is 10 Nem The output for an analog rotating speed signal is 5 V when the rotating speed reaches the value
213. re closed When automatic CSV conversion Auto CSV Conversion is enabled an ASCII format stored data file csv is created When the store state is Cmpl the stored data file wts and header file hds are already closed so no file operations are performed when storage is reset IM WT1801 01EN 17 7 17 Data Storage Storage Operations in Each Storage Mode Manual Manual storage mode STORE START STORE STOP on on State Start Cmpl Time A STORE START Storage count STORE RESET key key Real Time Real time storage mode STORE START STORE START STORE STOP blinking on on Sa ae State Ready Start Cmpl Time A A 1 STORE START Scheduled Scheduled STORE RESET key start time stop time or key storage count Integ Sync Integration synchronized storage mode When the storage count is reached before integration stops STORE START STORE START STORE STOP blinking on on RN ee NN State Ready Start Cmpl Time f er STORE START Integration start Storage count STORE RESET key key When integration stops before the storage count is reached illustration of operations after integration starts STORE START STORE START STORE STOP on blinking blinking mien mu eis mT State Start Ready Stop Time A A Integration Integration Integration STORE RESET start stop reset key If you reset integration after it has been stopped the store state changes to Cmpl Writing to the sto
214. re system Voltage range x current range x 2 3P3W three phase three wire system when the voltage and current ranges on the 3P3W 3V3A three voltage three elements in the wiring unit are set to the same range current method 3P4W three phase four wire system Voltage range x current range x 3 when the voltage and current ranges on the elements in the wiring unit are set to the same range When the result of the equation voltage range x current range exceeds 1000 W VA or var the displayed unit changes to kW kVA or kvar Number of displayed digits display resolution P Click here For a detailed list of the available voltage and current range combinations and power ranges when all the elements have the same voltage or current range see appendix 4 in the getting started guide IM WT1801 O3EN Li In auto range mode because the voltage and current ranges switch independently according to range increase and decrease conditions different power ranges may be set for the same power value External Current Sensor Range EXT SENSOR option The output of current sensors that produce voltage such as shunts and clamps can be applied to an element s external current sensor input connector EXT and measured Press EXT SENSOR so that it illuminates and then set the external current sensor range The external current sensor range can be fixed when auto range is set to off or determined automatically when auto range is set to o
215. red data file wts and header file hds finishes and the files are closed If you restart integration after it has been stopped the store state changes to Start The stored data continues to be written to the file from before storage was stopped Event Event synchronized storage mode STORE START STORE START STORE STOP blinking on on State Ready Start Cmpl Time i ji STORE START Event occurrence Storage count STORE RESET key key 17 8 IM WT1801 01EN 17 Data Storage Single Shot Single shot storage mode STORE START STORE STOP on on State Start Cmpl Time v f i j STORE RESET STORE START Storage count key key Storage Operations Performed When You Press STORE STOP After Storage Has Been Started Restarting Storage When you press STORE START STORE STOP and then STORE START STORE START STORE STOP STORE START on blinking on State Start Stop Start Time gt STORE START STORE STOP STORE START key key key Resetting Storage When you press STORE START STORE STOP and then STORE RESET STORE START STORE STOP on blinking State Start Stop Time x STORE START STORE STOP STORE RESET key key key Storage Operation When the Storage Interval Is Not an Integer Multiple of the Data Update Interval Here we will use the case when the data update interval is 5 s and the storage interval is 7 s as an example How storage is performed varies as indicated below depending on the
216. rinting cannot be performed If you attempt to print the data an error message is displayed n non numeric displays waveform display trend display etc The WT1800 prints data according to the numeric display settings For example when the waveform display is shown if the 16 value display would appear when you pressed NUMERIC then the data for the measurement functions on the page of the 16 value display that would appear is printed Li e For items with no numeric data no data is printed If integration is not being performed and thus there is no integrated value no data is printed P no data is also printed for the integration time The maximum harmonic order that can be printed is determined by the maximum harmonic order set in the harmonic measurement option menu For orders with no numeric data no data is printed Functions AU1 to AP2 are printed according to the delta computation option type that you selected in the delta computation settings IM WT1801 01EN 20 1 20 Printing Screen Images and Numeric Data Option Automatic Printing Execution Auto Print ON Enable automatic printing When you enable automatic printing the timing at which printing occurs and at which the PRINT key illuminates varied depending on the print mode For details see Print Timing for Different Print Modes P Click here Limitations on Changing the Settings during Automa
217. s which are located on the right side of the screen All Select NULL Bene CF 3 indicator Element 1 300V CF 3 Element 1 NULL a Sync Src Sync Src indicator Element 2 1000V 50A Syne Src Element 2 1000V 50A Sync Src Element 3 1000V 50A Sync Src Element 3 1000V 50A Sync Src Element 4 1000V 50A Sync Src Element 4 1000V 50A Sync Src Element 5 Element 5 f you press NULL while the NULL feature is enabled the NULL key light and NULL indicators turn off and the NULL feature is disabled Li To make accurate measurements we recommend that you execute zero level compensation before enabling the NULL feature The NULL feature is disabled when The power is turned on The settings are initialized Asetup data file is loaded You switch between direct current input and external current sensor input You change the Sense Type setting for the Speed or Torque motor evaluation input signal If the NULL feature is enabled or disabled while the display is held the NULL indicator will illuminate or turn off but the held data will not be affected Also the NULL indicator will be highlighted The DC values that the NULL value is based on when the NULL feature is ON are held but the upper limit of the NULL value is 10 of the range when the crest factor is set to CF3 The upper limit of the NULL value is 20 of the range when the crest factor is set to CF6
218. s made to a DNS server using only a portion of the domain name For example if BBBBB co jp is registered as a domain suffix and a query is made using AAA the name AAA BBBBB co jp is searched You can specify up to two domain suffixes Domain Suffix1 and Domain Suffix 2 You can use up to 127 characters The characters that you can use are 0 to 9 A to Z a to z and hyphens TCP IP settings are applied when you press Bind and then SET or when you turn on the WT1800 the next time 21 2 IM WT1801 01EN 21 Ethernet Communication Network FTP Server FTP Server You can connect the WT 1800 as an FTP server to a network Set the user name and password that will be used by devices on the network to access the WT 1800 Also set the access timeout value User Name User Name Set the user name that will be used to access the WT1800 from a PC If you set the user name to anonymous you can connect to the WT1800 without entering a password Number of characters Up to 32 Usable characters All ASCII characters that are displayed on the keyboard Password Password Set the password that will be used to access the WT1800 from a PC Number of characters Up to 32 Usable characters All ASCII characters that are displayed on the keyboard Timeout Time Out If an FTP connection cannot be established between the WT1800 and the PC within the amount of time specified here the WT1800 aborts the connection process
219. s not displayed so do not remove the USB memory device or turn off the power Doing so may damage the storage medium and corrupt its data Stopping High Speed Data Capturing Stop High speed data capturing stops When high speed data capturing stops the following operations are performed HS State Ready appears in the upper right of the screen When recording to a file is enabled the WT1800 finishes writing to the high speed data capturing data file WTS and high speed data capturing header file HDS and closes them File State Ready appears in the upper left of the screen When recording to a file and automatic CSV conversion are enabled the WT1800 creates an ASCII format high speed data capturing file CSV Automatically Stopping High Speed Data Capturing After the specified number of high speed data captures have been made high speed data capturing automatically stops The same operations are performed as those listed above for when high speed data capturing stops Li When External Sync is set to ON and the following conditions regarding the external start signal applied to the WT1800 are met high speed data capturing automatically stops When the external start signal is not applied for 1 s or longer When the period of the external start signal is less than 1 ms IM WT1801 01EN 16 9 16 High Speed Data Capturing High Speed Data Capturing Operations Examples for when the trigger mod
220. s that are next to each other Wiring units cannot consist of input elements that are not next to each other Awiring unit must either be composed of only 50 A input elements or only 5 A input elements Wiring units cannot consist of different types of input elements X Functions The measurement function of a wiring unit is called a function For example Urms2ZA corresponds to the average of the voltages of the input elements that are assigned to the wiring unit ZA The average value represents the true rms value Wiring System Combinations The following tables provide examples of the wiring system combinations that you can use and the input elements that you can assign to wiring system 2A 2B or 2C depending on the number of installed input elements In addition to the combinations indicated in the tables below you can also configure any pattern that meets the conditions for wiring units described above For details about the relationship between wiring systems and how the values of the measurement functions are determined see appendix 1 in the getting started guide IM WT1801 03EN IM WT1801 01EN 2 1 2 Fundamental Measurement Conditions Input Element Wiring system 1P2W combination Input Element Wiring system 1P2W 1P2W combination 1P3W or 3P3W 2A nptElemet 1 2 3 1P3W or 3P3W 2A 1P2W 1P3W or 3P3W 2A 3P4W or 3P3W 2A linputElement 1 2 3 J 4 nutEemet 1 2 3 J 4 nutEemet 1
221. s useful when there are many waveforms and it is difficult to view them all in a single display You can choose the number of windows from one of the following options Single No windows Dual Two windows Triad Three windows Quad Four windows Hexa Six windows Depending on the number of windows the number of displayed points in each window changes as described below Single 672 points Dual 336 points Triad 224 points Quad 168 points Hexa 112 points When the screen is split the number of displayed points along the vertical axis of a single window is halved For information about how to assign waveforms to windows see Waveform Mapping gt Click here Time Axis Time div The time axis is set in Time div time per grid division The time axis can be set up to the point in which the time corresponding to one screen is equal to the data update interval in 1 2 5 steps For example when the data update interval is 500 ms if you change the time per division in this order 0 05 ms gt 0 1 ms gt 0 2 ms gt 0 5 ms gt 1 ms gt 2 ms gt 5 ms gt 10 ms gt 20 ms gt 50 ms the time corresponding to one screen changes in this order 0 5 ms 1 ms 2 ms 5 ms 10 ms 20 ms 50 ms gt 100 ms gt 200 ms gt 500 ms 1 grid division 2 10 ms 1 grid division 20 ms 100 ms lt
222. set NULL The NULL value 1 Ifthe torque signal is a changed signal you can set the scaling factor to determine the torque before the change 2 The torque pulse coefficient and torque pulse offset are determined from the torque signal pulse rating as shown in the next figure Relationship between the Torque Signal Pulse Input Range and Pulse Rating To measure a torque of 20 Nem to 20 Nem using a torque meter with specifications in the figure below configure the pulse input range and pulse rating settings as indicated below Upper limit of the pulse input range Pulse Range Upper 20 0000 Lower limit of the pulse input range Pulse Range Lower 20 0000 Positive rated torque signal value Rated Upper 50 0000 Negative rated torque signal value Rated Lower 50 0000 Positive rated torque signal pulse frequency Rated Freq Upper 15000 Negative rated torque signal pulse frequency Rated Freq Lower 5000 Torque sensor specifications Pulse rating positive 15 kHz is output at a torque of 50 Nem Pulse rating negative 5 kHz is output at a torque of 50 N m Slope Torque pulse coefficient A P Torque pulse offset B Vo o v amp oz 52 23 a 535 zo Torque input Output axis Torque signal to the WT1800 Pulse signal corresponding to 20 Nem to 20 Nem D A output signal to the recorder 5 V for 20 Nem to 20 Nem IM WT1801 01EN 4 Motor Evalua
223. settings of all input elements see Displaying the Setup Parameter List You can change measurement ranges from the list P Click here Auto Voltage Range AUTO V When you press AUTO the AUTO key illuminates and the range is set automatically The measurement range is Switched automatically depending on the amplitude of the input signal as described below The different ranges used in the auto range are the same as those available for the fixed range Range Increase The measurement range is increased when any of the following conditions is met The data of measurement function Urms or Irms exceeds 11096 of the measurement range The crest factor is set to CF3 and the data of Upk or Ipk exceeds 330 of the current measurement range The crest factor is set to CF6 and the data of Upk or Ipk exceeds 660 of the current measurement range If all the installed input elements are selected all the element indicators are illuminated the measurement range is increased on all input elements when any of the elements meets the range increase conditions described above When a wiring unit is configured the measurement range is increased on all input elements in the wiring unit when any of the elements in the unit meets the range increase conditions described above Range Decrease The measurement range is decreased when all the following conditions are met The data of Urms or Irms is less than or equal to 3096 of the measurement range The
224. signal is greater than 100 ms the display is updated as the two conditions described above alternate If this occurs use Normal mode Normal Normal mode The WT1800 only updates the waveform display when the trigger conditions are met If no triggers occur the display is not updated If you want to view waveforms that the WT1800 cannot trigger on or if you want to check the ground level use Auto mode OFF The trigger feature does not function The display is updated at the data update interval There are limitations on the waveform display feature gt Click here Trigger Source Source The signal that the WT1800 checks for the trigger condition is referred to as the trigger source Select from the following options The available options vary depending on the installed elements U1 11 U2 12 U3 13 U4 I4 U5 I5 U6 I6 and Ext Clk external clock When you select Ext Clk the external signal applied to the external clock input connector EXT CLK on the rear panel is used as the trigger source For the EXT CLK connector specifications see section 4 3 in the getting started guide IM WT1801 03EN When Ext Clk is set as the trigger source the trigger level setting is invalid Trigger Slope Slope Slope refers to the signal movement from a low level to a high level rising slope or from a high level to a low level falling slope When the slope is used as one of the trigger conditions it is called a trigger slope Th
225. splay You can set the trend to measure with cursor 1 to a trend from T1 to T16 Waveform Measured by Cursor 2 x C2x Trace You can select the waveform to measure with cursor 2 x The options are the same as those for cursor 1 C1 Trace gt Click here IM WT1801 01EN 15 1 15 Cursor Measurement Cursor Path Cursor Path Because the WT1800 uses P P compression on sampled data two values a maximum and a minimum value are displayed at each time axis point You can choose the path that the cursors move through and the data points that are measured by the cursors from one of the options below Max Cursors move along and measure the maximum values on the time axis Min Cursors move along and measure the minimum values on the time axis Mid Cursors move through the middles of the maximum and minimum values on the time axis and they measure the values in the middle of the maximum and minimum values This item only appears in the waveform display It does not appear in the trend or bar graph display Position of Cursor 1 C1 Position Set the position of cursor 1 to a value within one of the following ranges Waveform display 0 the left edge of the screen to 800 the right edge of the screen Trend display 0 the left edge of the screen to 1601 the right edge of the screen Bargraph display 0 DC to 500 the 500th order Position of Cursor 2 x C2x Position Set the position of cursor 2 x
226. splay range of the vertical axis is based on the specified crest factor and measurement range For example if the crest factor is set to CF3 and the voltage measurement range is set to 100 Vrms the display range is set to 300 Vpk 3 x 100 Vrms with the zero input line at the center The waveform is clipped if this range is exceeded In the same way if the crest factor is set to CF6 and the voltage measurement range is set to 50 Vrms the display range is set to 300 Vpk 6 x 50 Vrms with the zero input line at the center When measured with a measurement range of 100 Vrms 300 Vpk Input zero line 300 Vpk 1 grid division 100V When the same signal is measured with a measurement range of 300 Vrms 900 Vpk 900 Vpk i 1 grid division 300V 10 4 IM WT1801 01EN 10 Waveform Display Trigger Trigger Settings The trigger determines when a waveform is displayed A trigger is said to occur when the trigger condition is met and a waveform is displayed Trigger Mode Mode The trigger mode determines the conditions for updating the display Select from the following options Auto Auto mode If the trigger conditions are met before an approximately 100 ms timeout the WT 1800 updates the displayed waveforms on each trigger occurrence If not the WT1800 automatically updates the displayed waveforms If the period of the trigger
227. steps Selecting OFF disables the HS filter Li You can stabilize the measured voltage U current I and power P values for each element and the measured Umeanz Imeanz Ur meanz and Ir mean values for each wiring unit by specifying a low cutoff frequency for the HS filter However the response to changes in the measurement data becomes slower IM WT1801 01EN 16 5 16 High Speed Data Capturing Trigger Trigger Settings The trigger is what starts high speed data capturing The act of starting high speed data capturing when the trigger conditions are met is referred to as triggering Li All the trigger settings for high speed data capturing are shared with those for displaying waveforms If you change these settings in the menu for high speed data capturing the waveform display trigger settings will also change For example if you set the trigger mode to off in the high speed data capturing menu the trigger mode for waveform display will also be set to OFF Trigger Mode Mode This setting is the same as the waveform display trigger mode setting gt Click here Trigger Source Source This setting is the same as the waveform display trigger source setting gt Click here Trigger Slope Slope This setting is the same as the waveform display trigger slope setting gt Click here Trigger Level Level This setting is the same as the waveform display trigger level setting P Click here Externa
228. storage state indication The storage count includes the missing stored data When you perform consecutive operations in the setup menu When the WT1800 receives consecutive communication commands When you operate the WT1800 over FTP If you choose to store data through USB and the write speed of the connected USB device is slow a new numeric data storage operation may begin before the previous operation is finished and some of the numeric data may be lost When this happens an asterisk appears in the storage state indication The storage count includes the missing stored data You can avoid the loss of numeric data during storage by Setting a longer data update interval Reducing the number of stored data types Using a faster USB memory device When it takes a long time for data to be written to the USB storage may be stopped forcefully and some data may not be saved When this happens the storage state indication is Error Conversion to ASCII format csv uses a pair of files that consists of a stored numeric data file wts and a header file hds with the same name Do not change the names of stored numeric data wts and header hds files for different sets of data to the same name If you do so the WT1800 may malfunction and the USB memory may be damaged when you convert the data to ASCII format csv If you remove the USB memory during storage and the storage state indication is Error the stored data fil
229. t scaling factor exceeds 9999 99 M OF will appear in the numeric data display frame You can view the VT and CT ratios and the power coefficients of all input elements by displaying the setup parameter list P Click here To correctly compute the power and efficiency of 2 functions set the power coefficients of all elements so that all power units used in the computation are the same For example the efficiency cannot be computed correctly if elements or wiring units used in the computation have different power units such as W watt and J joule To compute the efficiency correctly make all the power units the same either all W or all J IM WT1801 01EN 2 15 2 Fundamental Measurement Conditions Valid Measurement Range CONFIG V CONFIG A You can enable or disable a measurement range by selecting or clearing its check box The WT1800 switches between enabled measurement ranges Disabled measurement ranges are skipped For example when using auto range to measure the current of a device that produces 2 A when operating and 100 mA when in standby disable the 200 mA 500 mA and 1 A ranges When the device is in standby the range will be 200 mA When the device begins operating the WT1800 will skip the intermediate 200 mA 500 mA and 1 A ranges and switch directly to the 2 A range Element1 to Element6 For each input element or wiring unit you can enable all measurement ranges at the same time All ON Measurement
230. t CSV Convert You can convert the selected high speed data capturing data to ASCII format csv This menu item appears when you press File List to display the file list When you convert high speed data capturing data on the internal RAM disk RAM 0 A CSV file is created in the root folder of the USB memory device whose ID number is 0 USB 0 An error message appears when USB memory is not connected When you convert high speed data capturing data on a USB memory device USB 0 or USB 1 A CSV file is saved in the same folder as the high speed data capturing data file that is being converted Starting and Stopping High Speed Data Capturing Start Stop Starting High Speed Data Capturing Start High speed data capturing starts When high speed data capturing starts the following operations are performed If the trigger mode is set to OFF data is captured If the trigger mode is set to Auto or Normal the WT1800 waits for a trigger to occur When a trigger occurs the WT1800 begins capturing data HS State Start appears in the upper right of the screen When recording to a file is enabled the WT1800 creates a high speed data capturing data file WTS and a high speed data capturing header file HDS File State Rec and the file name appear in the upper left of the screen Li While File State Rec is displayed the storage medium is constantly being accessed even though the icon that indicates this i
231. t Power of element 2 P2 Efficiency equation P2 P1 x 100 96 Input power P1 Converter Output power P2 inverter etc Efficiency of a Single Phase Two Wire Input Three Phase Three Wire Output Device Input Power of element 1 P1 Output 2 power of elements 2 and 3 PZA Efficiency equation PZA P1 x 100 96 Efficiency of a Three Phase Three Wire Input Three Phase Three Wire Output Device Input 2 power of elements 1 and 2 PZA Output 2 power of elements 3 and 4 P2 B Efficiency equation P2B PZA x 100 96 Efficiency of a Motor with a Single Phase Two Wire Input Input Power of element 1 P1 Output Motor output Pm Efficiency equation Pm P1 x 100 96 Efficiency of a Motor with a Three Phase Three Wire Input Input 2 power of elements 1 and 2 P2A Output Motor output Pm Efficiency equation Pm PZA x 100 96 Li To correctly compute the efficiency set the power coefficients of all elements so that all power units used in the computation are the same For example the efficiency cannot be computed correctly if elements or wiring units used in the computation have different power units such as W watt and J joule 2 4 IM WT1801 01EN 2 Fundamental Measurement Conditions Independent Input Element Configuration Element Independent In the wiring system settings you can select whether to set the measurement range or sync source of input elements in the same wiring unit col
232. t and output frequencies are different This setting does not appear on models with the harmonic measurement option Element1 to Element6 Use the soft keys to select an element and then assign the element to group Hrm1 or group Hrm2 Input elements that are assigned to the same wiring unit are assigned to the same group PLL Source of Group Hrm1 Hrm1 PLL Source PLL Source of Group Hrm2 Hrm2 PLL Source These settings are the same as the PLL source PLL Source setting P Click here Measured Harmonic Orders of Group Hrm1 Min Order Max Order Measured Harmonic Orders of Group Hrm2 Min Order Max Order These settings are the same as the measured harmonic orders Min Order Max Order setting P Click here Distortion Factor Equation of Group Hrm1 Thd Formula Distortion Factor Equation of Group Hrm2 Thd Formula These settings are the same as the distortion factor equation Thd Formula setting P Click here IM WT1801 01EN 3 3 3 Harmonic Measurement Conditions Option Anti Aliasing Filter When an FFT is taken through the performance of A D conversion on a repetitive waveform a phenomenon occurs in which frequency components that exceed half the frequency of the sampling frequency are detected as low frequency components This is called aliasing Aliased signal Input signal Sampled points Aliasing causes problems such as increased errors in measured values and incorrect measurements of the phase angles on e
233. t element selection in the 4 8 and 16 value displays P Click here Resetting the Settings Reset Items Exec Reset the column settings Turning the Display Frame On and Off Display Frame This is the same as turning the display frame on and off in the 4 8 and 16 value displays gt Click here IM WT1801 01EN 7 7 7 Numeric Data Display All Items Display All Items You cannot change individual measurement functions Change the display by pressing PAGE UP and PAGE DOWN or the up and down cursor keys The number of displayed pages varies as indicated below depending on the installed options Harmonic Measurement Option or Simultaneous Dual Harmonic Measurement Option Installed Not installed Delta computation option Installed 12 pages Not installed 12 pages Order Order k option This setting is valid on the 9 or 10 page On the 9 or 10 page the order setting appears in the upper left of the screen This is the same as setting the order in the 4 8 and 16 value displays gt Click here Turning the Display of the Numeric Data for All Elements and Wiring Units On and Off Display All Elements OFF The numeric data is displayed in six columns If there is a total of seven or more elements and wiring units you can change the displayed elements and wiring units by pressing the left and right cursor keys ON When there is a total of 7 or more elements and wiring units all the numeric data for
234. t number takes precedence Inthe valid measurement range settings all measurement ranges are enabled selected The synchronization source for a wiring unit is set to the input element whose number is the smallest of the elements in the unit At the same time that you press ELEMENT to select the element that you want to set the voltage or current range of the indicators for the input elements that have been assigned to the same wiring unit illuminate Wiring System during High Speed Data Capturing gt Click here IM WT1801 01EN 2 3 2 Fundamental Measurement Conditions Efficiency Equation n Formula You can create an efficiency equation by combining measurement function symbols The WT1800 can determine the energy conversion efficiency of the device using the numeric values of the measurement functions n1 to n4 You can create four efficiency equations n1 to n4 using the following measurement functions as operands The active powers of each element P1 to P6 The active powers of the functions PZA to P C The motor output Pm on models with the motor evaluation option Udef1 and Udef2 Udef1 and Udef2 To add active powers and motor output and use them in n1 to n4 use Udef1 and Udef2 You can add up to four operands consisting of the measurement functions listed above Equation Examples Efficiency of a Single Phase Two Wire Input Single Phase Two Wire Output Device Input Power of element 1 P1 Outpu
235. ta that corresponds to CH1 to CH16 in the waveform trend and vector displays is indicated below Waveform Display Trend Display Vector Display CH1 U1 T1 U1 CH2 11 T2 1 CH3 U2 T3 U2 CH4 12 T4 I2 CH5 U3 T5 U3 CH6 I3 T6 I3 CH7 U4 T7 U4 CH8 l4 T8 14 CH9 U5 T9 U5 CH10 I5 T10 I5 CH11 U6 T11 U6 CH12 l6 T12 l6 CH13 Speed Aux1 T13 CH14 Torque Aux2 T14 CH15 T15 CH16 T16 e Grid Intensity Grid Intensity You can set the grid intensity to a value from 1 darkest to 8 brightest e Menu Background Color Base Color You can set the background color of the menu to Blue or Gray USB Keyboard Language USB Keyboard Select the USB keyboard language to use when entering file names comments etc You can use the following keyboards conforming to USB Human Interface Devices HID Class Ver 1 1 English 104 keyboard Japanese 109 Keyboard For details on how the WT1800 keys are mapped to the keys on a USB keyboard see appendix 7 in the getting started guide IM WT1801 03EN Environment Settings Preference Display Digits Resolution You can choose to display four digits or five digits of the numeric data The number of displayed digits for integration measurement functions is fixed at six Frequency Display When the Frequency Measurement Is Less Than Lower Limit Freq Display at Frequency Low When the frequency of the input signal is lower than the frequency that the WT1800 can measure you can choose to
236. ted Start Displayed along with the elapsed integration time when integration has been started Stop Displayed along with the elapsed integration time when integration has been stopped When integration has been stopped forcibly through the pressing of the Stop soft key Stop appears in yellow You can press Start to resume integration In real time normal integration mode and real time continuous integration mode once the scheduled integration stop time is reached Stop appears in orange Even if you press Start integration is not resumed To start integration you must first reset it Ready In real time normal integration mode when you press Start before the scheduled integration start time is reached Ready and the scheduled integration start time appear Integ Start Time 2011 02 10 09 00 00 Scheduled integration start time TimeUp After the specified integration timer time elapses integration stops automatically and TimeUp and the elapsed integration time appear Error In the following situations integration stops automatically and Error and the elapsed integration time appear The integration time reaches the maximum integration time 10000 hours The integrated value reaches its maximum or minimum displayable value Apower failure occurs when integration is in progress Even when a power failure occurs the WT1800 stores and holds the integration result When the power returns integration is s
237. tegration Automatic Stopping of Integration Integration stops automatically under the different conditions indicated below depending on the integration mode The integration time and integrated value are held After integration stops automatically you cannot resume it by pressing Start To start integration you must first reset it When the integration mode is manual integration mode standard integration mode or real time normal integration mode After the specified timer time elapses integration stops automatically The STOP indicator illuminates and the integration status indication is TimeUp When the integration mode is real time normal integration mode or real time continuous integration mode Integration stops automatically when the scheduled integration end time is reached The STOP indicator illuminates and Stop appears in orange as the integration status indication IM WT1801 01EN 9 5 9 Integrated Power Watt hours Resetting Integration Reset The integration time and integrated value are reset The STOP indicator turns off The displays for integration related functions change to no data Li When an integration error occurs the START and STOP indicators blink and the integration status indication is Error Holding Integration and Releasing the Hold Holding Integration When you press the HOLD key it illuminates and the display and communication output of the integration
238. the display to show in the bottom half of the screen from the following options x Wave Waveform Trend Trend Bar Bar graph Vector Vector This item is available on models with the harmonic measurement option or the simultaneous dual harmonic measurement option Split Displays with the Waveform Display Wave Waveforms are displayed in the top half of the screen Select the display to show in the bottom half of the screen from the following options Numeric Numeric data Trend Trend Bar Bar graph Vector Vector This item is available on models with the harmonic measurement option or the simultaneous dual harmonic measurement option Split Displays with the Trend Display Trend Trends are displayed in the top half of the screen Select the display to show in the bottom half of the screen from the following options Numeric Numeric data Wave Waveform Bar Bar graph Vector Vector This item is available on models with the harmonic measurement option or the simultaneous dual harmonic measurement option Li When the setup parameter list is displayed the INPUT INFO key is lit it appears in the top half of the screen and the display that you assigned in the Others menu to the top window in the split display is displayed in the bottom half of the screen Split Display Settings Press FORM to switch between the FORM menus of the display that you assigned to the top half of the screen in the split dis
239. the trigger point when the trigger edge is set to rising 4 Measurement range 100 Vrms or 50 Vrms when the crest factor is set to CF3 or CF6 respectively Trigger level 25 100 300 Vpk Ta Trigger level AL Input zero line 25 trigger level 75 V center of the vertical axis 100 300 Vpk Trigger Point The trigger point is the point at which a trigger occurs The trigger point is always displayed at the left end of the Screen After the trigger is activated the waveform display continues from the left of the screen to the right of the screen with the passage of time The arrow below the word Trigger point in the figure below is just for illustration The arrow does not appear on the actual display Trigger point Time Li To prevent noise related errors the trigger feature has a hysteresis of approximately 196 when the crest factor is set to CF3 For example when the trigger slope is set to 4 a trigger will occur if the input signal level falls approximately 196 below the trigger level and then passes through the trigger level on a rising edge The trigger feature has a hysteresis of approximately 296 when the crest factor is set to CF6 When integration is in progress or has been stopped the trigger feature does not function Therefore the waveform display start point the signal level at the left edge of the screen
240. tic Printing While automatic printing is enabled there are some setting that you cannot change and functions that you cannot execute For details see appendix 9 in the getting started guide IM WT1801 03EN If you perform the following operations while automatic printing is enabled automatic printing will not be performed e Save data or settings or access a storage medium in some other way Execute an FTP server command Manually start printing or start printing using communication commands Automatic Printing Auto Print Settings Print Mode Print Mode You can specify the method for starting stopping and executing printing from the options below Interval Interval Print Mode Printing starts when you enable automatic printing Data is printed at each print interval RealTime Real Time Print Mode Printing starts and stops in synch with the scheduled printing start and stop times Data is printed at each print interval nteg Sync Integration Synchronization Print Mode Printing starts and stops in synch with the starting and stopping of integration Data is printed at each print interval Event Event Synchronization Print Mode When you enable automatic printing printing is executed when the measurement data is updated and a user defined event occurs Printing is executed at the data update interval for as long as the event continues However if the time it takes to print is longer than the data update interval after pr
241. til co cce Endo Fe cis Co dex heats 19 1 Printing Screen Images and Numeric Data Option Printing Conditions PRINT MENU rini rr n eie eerie erecti 20 1 Output Format Format iieri ee certi de the etx EH Ee o re Eae eR Ed aaRS 20 1 Automatic Printing Execution Auto Print ON nne 20 2 Automatic Printing Auto Print Settings eee 20 2 ero niei 20 3 Paper Feed Paper Feed eie eee iii teed desta feud ee eee 20 3 Print Timing for Different Print Modes eene tnn rennen nitent tienne npe 20 4 Printing PRIN ape 20 6 Ethernet Communication Network gelassen 21 2 FIP Serer FTP SQrven n 21 3 Network Drive Net Drive i dine rettet Re a Ad A Nn vies 21 4 SNTP CON MP eM 21 5 Utility Busan E die 22 1 Overview System OVervIew ieaie eiriaa nte Exe E REA ERES Rao sek usan Enea siena dnb b uns 22 2 Initializing the Settings Initialize Settings ssesm 22 2 Remote Control Remote Gorntrol tree reete retenta te Eee RES RR E aa daa E 22 3 System Configuration System Config enne 22 5 D A Output D A Output Items option ssssssssssssssssee rennen nennen nnn 22 8 SIE WII DEN 22 11 Other Features Z ro Level Compensation CAL isie 2 aided idee cite ha Bre da de deed epe b Le dg e 23 1 N
242. tion Conditions Option Li The pulse input range setting applies to input signals whose type has been set to pulse For input signals whose type has been set to analog there is no need to configure this setting Revolution signal pulses per revolution Pulse N Set the number of pulses per revolution to a value from 1 to 9999 The following equation is used to compute the rotating speed X Rotating speed S NULL S The scaling factor X The number of input pulses from the revolution sensor per minute N The number of pulses per revolution NULL The NULL value When the scaling factor is 1 the rotating speed is the number of revolutions per minute min or rpm If the revolution signal is a changed signal you can set the scaling factor to determine the rotating speed before the change Li The setting specifying the number of revolution signal pulses per revolution applies to input signals whose type has been set to pulse For input signals whose type has been set to analog there is no need to configure this setting Synchronous Speed Sync Speed Motor Poles Pole Set the number of motor poles to a value from 1 to 99 This number is used to compute the sync speed Frequency Measurement Source Source Select the frequency measurement source to use to compute the sync speed from the options below The frequency measurement source is used to compute the sync speed The available options vary depending on the
243. tion as possible If the fundamental frequency of the PLL source fluctuates or if the fundamental frequency cannot be measured due to waveform distortion correct measurements will not be obtained When the measured item is a switching power supply and in other cases where the distortion of the voltage signal is smaller than that of the current signal we recommend that the PLL source be set to the voltage If all of the input signals are distorted or the amplitude is small compared to the measurement range the specifications may not be met To achieve stable accurate measurements on high harmonics set the PLL source to an external clock signal and apply a signal with the same period as the input signal to the external clock input connector If the fundamental frequency is less than or equal to 440 Hz and the signal contains high frequency components we recommend that you turn the frequency filter on This filter is only effective on the frequency measurement circuit Ifthe amplitude level of the signal applied to the element that is specified as the PLL source is small compared to the range PLL synchronization may not be achieved If the crest factor is set to CF3 set the measurement range so that the amplitude level of the PLL source is at least 5096 If the crest factor is set to CF6 set the measurement range so that the amplitude level of the PLL source is at least 100 If the frequency of the PLL source changes correct measured values
244. topped and the integration result calculated up to the point when the power failure occurred is displayed Example of the Display When the Integration Time Is Set to a Non Zero Value Elapsed integration time Integration timer IM WT1801 01EN 9 1 9 Integrated Power Watt hours Example of the Display When Independent Integration Is Enabled Element 1 1000V 50A Sync Integ Reset The integration status of the input penen 2 Integration status element or wiring unit selected with 50A of each element the ELEMENT key for setting Syne m Mitoc Ragat ranges ae When a wiring unit is selected the 50A element number at the top is the ibis a ess deste number of the smallest input rae element in the wiring unit 50A Sync KH Integ Reset Element 5 DOO Number of Displayed Digits Display Resolution The number of displayed digits display resolution for an integrated value is six the maximum value is 999999 When an integrated value reaches 1000000 counts the decimal point shifts automatically For example if 0 001 mWh is added to 999 999 mWh the display shows 1 00000 Wh Maximum and Minimum Displayable Integrated Values Active power WP 999999 MWh Current q 999999 MAh Apparent power WS 999999 MVAh Reactive power WQ 999999 Mvarh Display When Integration Overflow Occurs If either of the conditions below is met integration is stopped and the integration time and integrated value
245. tput gt Click here You can also choose not to output a measurement function None The output for channels that have been set to none is 0 V because they have no corresponding numeric data When the D A output range mode is set to Fixed the D A output of channels whose measurement function has been set to Z Rs Xs Rp Xp or F1 to F20 is Fixed at 0 V When the range mode is set to Manual the channels produce voltages Element Element 2 You can select the element wiring unit from the choices below The available options vary depending on the installed elements Element1 Element2 Element3 Element4 Element5 Element6 2A 2B and C fan element in the selected wiring unit does not exist because there is no data the output is 0 V For example if elements are assigned to ZA but not to 2B the output for the measurement function for 2B is O V Order Order option When you select a function that has harmonic data you can set the displayed harmonic order within the following range Total Total value or 0 DC to 500 The orders that can be specified vary depending on the measurement function For details see Harmonic Measurement Function Orders gt Click here The outputs of orders that exceed the maximum measurable order are 0 V For information about the maximum measurable harmonic order see Maximum Harmonic Order to Be Measured Max Order P Click here D A Output Range Mode Range Mode You c
246. ts numbered from 1 to 6 An element number is appended to the measurement function symbol for the measured data that the WT1800 displays so that you can tell which data belongs to which element For example Urms1 corresponds to the true rms voltage of element 1 Wiring System You can specify five wiring systems on the WT1800 to measure the power of various single phase and three phase power transmission systems single phase two wire single phase three wire three phase three wire three phase four wire and three phase three wire with three voltage three current method Wiring Unit The wiring unit is a set of two or three input elements of the same wiring system that are grouped to measure three phase power There can be up to three wiring units ZA 2B and 2C P Click here Functions The measurement function of a wiring unit is called a function For example Urms2ZA corresponds to the average of the voltages of the input elements that are assigned to the wiring unit ZA The average value represents the true rms value P Click here Element Element Element Element Element Element 1 2 3 4 5 6 O Voltage input lt Current input lt O O o O O e 6 o e 6 o e 6 o e 6 o M V JN AN J j E WU Three phase Three phase Three phase a2 prs three wire three wire three wire Wiring system YA IB IC Wiring unit Measurement Period For information ab
247. ue SyncSp Synchronous speed Slip Slip 96 Pm Mechanical output of the motor mechanical power EaU1 to 6 Electrical angle Phase angles of U1 to I6 with the Eal to 6 falling edge of the signal received through the Z terminal of the motor evaluation function as the reference On models with the harmonic measurement option or the simultaneous dual harmonic measurement option Auxiliary Input Measurement Functions Option Function Description Aux1 Auxiliary input 1 Aux2 Auxiliary input 2 High Speed Data Capturing Measurement Functios Option For the U and of each input element and wiring unit Select rms mean dc or r mean The P of each input element and wiring unit Motor evaluation function option speed torque and Pm Auxiliary inputs option Aux1 and Aux2 The maximum and minimum values of the above measurement functions IM WT1801 01EN 1 5 1 Items That This Instrument Can Measure What Is a Measurement Function Measurement Function The physical values such as rms voltage average current power and phase difference that the WT1800 measures and displays are called measurement functions Each measurement function is displayed using symbols that correspond to its physical value For example Urms corresponds to the true rms voltage Element Element refers to a set of input terminals that can receive a single phase of voltage and current to be measured The WT1800 can contain up to six elemen
248. urement range Range Decrease The measurement range is decreased when auxiliary input falls below 3096 of the measurement range and the peak value of the auxiliary input is less than 125 of the lower range o When non periodic pulse waveforms are applied during auto range the range may not remain constant If this happens use the fixed range setting Fixed Range Analog Range You can select one of the following input ranges 20 V 10 V 5 V 2 V 1 V 500 mV 200 mV 100 mV and 50 mV IM WT1801 01EN 5 1 5 Auxiliary Input Conditions Option Linear Scaling of Analog Input You can set the slope and the offset value of the auxiliary input using one of the following two methods Setthe values manually Specify two points and use those points to compute the values Manually Setting the Auxiliary Input Slope and Offset Linear Scale A B You can set the slope A and offset B of the auxiliary input to values within the following ranges A 1 000 m to 1 000 M B 1 000 M to 1 000 M The following equation is used to compute measured values of the auxiliary input Auxiliary input measured value S AX B NULL S The scaling factor A The auxiliary input slope X The input voltage of the auxiliary input B The offset NULL The NULL value When There Is No Offset in the Auxiliary Input Voltage If you set Ato 1 and B to O the linear scaling settings do not affect computation and the previous equation becom
249. use USB TMC drivers or software supplied by other companies IM WT1801 01EN 22 3 22 Utility Network Connects the WT1800 to a PC using Ethernet IP Address IP Address Displays the TCP IP setting that you specified in the Ethernet communication settings gt Click here Timeout Time Out If a connection cannot be established between the WT1800 and the PC within the amount of time specified here the WT1800 aborts the connection process You can set the timeout time to infinity or a value between 1 and 3600 Li You must set TCP IP parameters to connect the WT 1800 to an Ethernet network P Click here Notes about Connections To connect the WT1800 to a PC be sure to use straight cables through a hub Correct operation is not guaranteed for a one to one connection using a crossover cable Useone of the following types of network cables that support the data rate of your network UTP Unshielded Twisted Pair cable STP Shielded Twisted Pair cable Clearing Remote Mode LOCAL To clear remote mode press LOCAL P Click here 22 4 IM WT1801 01EN 22 Utility System Configuration System Config You can specify the following settings WT1800 date and time Language LCD adjustment USB keyboard language Environment settings Preference Crest factor Date and Time Settings Date Time The WT1800 date and time Turning the Display On and Off Display Set whether to show the date an
250. ution signal Set the factor to a value from 0 0001 to 99999 9999 When the Revolution Signal Type is Analog This setting is used as the scaling factor in the equation for the linear scaling of analog input When the Revolution Signal Type is Pulse This setting is used as the scaling factor in the equation for the number of revolution signal pulses per revolution IM WT1801 01EN 4 1 4 Motor Evaluation Conditions Option Setting the Scaling Factor for Scaling the Torque Signal You can set the factor for scaling the torque signal to motor torque Set the factor to a value from 0 0001 to 99999 9999 When the Torque Signal Type is Analog This setting is used as the scaling factor in the equation for the linear scaling of analog input When the Torque Signal Type is Pulse This setting is used as the scaling factor in the equation for the torque signal pulse rating Setting the Scaling Factor for Computing the Motor Output You can specify the scaling factor for computing the motor output mechanical power from the rotating speed and torque Set the factor to a value from 0 0001 to 99999 9999 The equation is indicated below The scaling factors of the rotating speed and torque are set so that the unit of the rotating speed is min or rpm and the unit of torque is Nem When the scaling factor of the motor output specified here is 1 the unit of the motor output Pm is W Because the efficiency computation uses W as the unit of
251. within the following range 2 to 64 Ifthe averaging type is Lin moving average set the average count to a value within the following range 8 to 64 Measurement Functions That Are Averaged The measurement functions that are directly averaged are indicated below Other functions that use these functions in their computation are also affected by averaging For details about how the values of the measurement functions are determined see appendix 1 in the getting started guide IM WT1801 03EN Measurement Functions Used in Normal Measurement Urms Umn Udc Urmn Uac Irms Imn Idc Irmn lac P S and Q AUT to AP2 on models with the delta computation option Torque speed and Pm on models with the motor evaluation option e Aux1 and Aux2 on models with the auxiliary input option A CfU Cfl Pc q q q and n1 to n4 are computed using the averaged values of Urms Irms P S and Q Slip is computed using the averaged value of Speed on models with the motor evaluation option Measurement Functions Used in Harmonic Measurement Option U K I k P K S k and Q k AK and k are computed using the averaged values of P k and Q k Z Rs Xs Rp Xp Uhdf Ihdf Phdf Uthd Ithd Pthd Uthf Ithf Utif Itif hvf hcf and K factor are computed using the averaged values of U k I k and P k k The harmonic order IM WT1801 01EN 2 21 2 Fundamental Measurement Conditions Measurement Fu
252. work Setting the Time Difference from Greenwich Mean Time Time Difference From GMT This is the same as the Setting the Time Difference from Greenwich Mean Time Time Difference From GMT setting in the date and time settings P Click here Li The Time Difference From GMT setting is shared with the same setting found in the SNTP settings in the date and time settings Date Time If you change this setting in the Ethernet communication Network settings the Time Difference From GMT in the date and time settings Date Time also changes IM WT1801 01EN 21 5 22 Utility Utility UTILITY You can specify the following settings Overview System Overview You can view the WT1800 system and setup information P Click here Initializing the Settings Initialize Settings You can reset the WT1800 settings to their factory default values P Click here Remote Control Remote Control You can select the method for connecting a PC to the WT1800 to control it gt Click here System Configuration System Config You can set the date and time time synchronization the menu and message languages the LCD intensity whether the backlight is on or off the USB keyboard language and USB communication and you can format storage media P Click here Ethernet Communication Network You can configure TCP IP FTP server network drive and SNTP settings P Click here D A Output D A Output Items option Configure D
253. y resolution in the wiring unit For details about the display resolution during integration see Number of Displayed Digits Display Resolution under Integrated Power Watt hours P Click here Display Item ITEM The display item options vary depending on the current display Numeric data display format 4 8 and 16 value displays 4 Items 8 Items 16ltems Matrix display Matrix All Items display All Items Single Harmonics and Dual Harmonics Lists Hrm List Single Dual option Custom display Custom Waveform display items Trend display items Bargraph display items Vector display items High speed data capturing display items For a list of the measurement functions and their descriptions see Items That This Instrument Can Measure P Click here Example of How Measurement Functions Are Displayed in the Numeric Data Display True rms voltage of element 1 Urms1 Element 1 True rms value Voltage Simple average of the currents of the elements in wiring unit 2A Idc2A a mr function of wiring unit ZA Simple average Current Voltage of the 20 order of element 2 Voltage Element 2 BS L Harmonic order 20 Simple average of the fundamental currents of the elements in wiring unit 2B Current p function of wiring unit B L Oorder 1 fundamental wave 74 IM WT1801 01EN 7 Numeric Data Display Notes about the Numeric Data Display e aae is d
254. you perform delta computation on wiring unit ZA the available measurement functions are as follows AU 1rms UrsA AU1mn UrsA AU1dc UrsA AU1rmn UrsA AU1ac UrsA Alrms ItA Almn ItA Aldc ItA Alrmn ItA Alac ItA In the measurement functions rms mn mean dc rmn r mean and ac are the delta computation modes A indicates the wiring unit P Click here 2 6 IM WT1801 01EN 2 Fundamental Measurement Conditions Star delta transformation Star gt Delta You can use the data from a three phase four wire system to compute the data of a delta connection from the data of a star connection R R gt T S T S When you perform delta computation on wiring unit ZA the available measurement functions are as follows AU1rms UrsA AU1mn UrsA AU1dc UrsA AU1rmn UrsA AU1ac UrsA AU2rms UstA AU2mn UstA AU2dc UstA AU2rmn UstA AU2ac UstA AU3rms UtrA AU3mn UtrA AU3dc UtrA AU3rmn UtrA AU3Sac UtrA AU2rms UZA AUZmn UZA AUZdc UZA AUZrmn UZA AUZac UZA Alrms InA Almn InA Aldc InA Alrmn InA Alac InA n the measurement functions rms mn mean dc rmn r mean and ac are the delta computation modes A indicates the wiring unit P Click here Delta star transformation Delta gt Star Using the data from a three phase three wire system that uses a three voltage three current method you can compute the data of a star connection from the data of a delta conn

Download Pdf Manuals

Related Search

Related Contents

Summit Appliance REX243B Use and Care Manual  N8160-40 Upgrade型LTOライブラリ用 増設筐体 取扱説明書  MANUAL DEL USUARIO - Icon Heath & Fitness  Samsung 730B Instrukcja obsługi  x94ag008.d01 _S5U13781R00C10M User Manual Rev 0.93_  multi reproductor grabable digital mp  燃焼排ガス分析計 取扱説明書  HP E1330A Digital I/O Module Service manual - NSCA TRA-CAL  Vogel's PUA 9501 Coupler for Connect-it poles small  Dragon Dictate  

Copyright © All rights reserved. Failed to retrieve file