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WT1800 Precision Power Analyzer Getting

1. Delta Data Determined with the Delta Computation and Substituted Measurement Cemput tien Corresponding Symbols Sampled Data Function F The computation mode for AU1 to AU3 AUX and yp Al can be set to rms mean dc r mean or ac u t i t Voltage V Difference Computed differential voltage AU1 Udiff u1 u2 3P3W 3V3A Unmeasured line voltage AU1 Urs u1 u2 computed in a three phase three wire system Delta Star Phase voltage computed in a AU1 Ur 4 u1 u2 three phase three wire 3V3A g 3 system AU2 Us u1 u2 u2 3 AU3 Ut _ u1 u2 3 Wiring unit voltage AUZ UZ AU1 AU2 AU3 AUZ 3 Star Delta Line voltage computed in a AU1 Urs u1 u2 three phase four wire system AU2 Ust u2 u3 AU3 Utr u3 u1 Wiring unit voltage AUZ UZ AU1 AU2 AU3 ES AUZ 3 Current A Difference Computed differential current Al Idiff i1 i2 3P3W 3V3A Unmeasured phase current Alfit i1 i2 Delta Star Neutral line current Al In i1 i2 i3 Star Delta Neutral line current Alfin i1 i2 i3 Power W Difference 3P3W 3V3A Delta Star Phase power computed in a AP1 Pr u1 u2 three phase three wire 3V3A t er i1 system AP2 Ps f ud zn i2 3 AP3 Pt u1 u2 i3 3 Wiring unit power APZ P2 APZ AP1 AP2 AP3 Star Delta For the 3P3W 3V3A co
2. measurement 758921 y 758917 4 758922 Lb WT1800 voltage input terminal 758029 758923 758931 ae ce a Use the clamp on probes sold separately as shown below Wiring When Measuring Current Current under measurement 96001 voltage output type Judd WT1 pon EXT input termina e cL uq el e Q 751552 current output type 758917 758921 p WT1800 current input terminal Connecting a clamp on probe The current input terminal and EXT input terminal cannot be wired used simultaneously IM WT1801 03EN 2 11 sjueuiaJnseo y 104 suoneuedaag Burjelw Hu 2 7 Wiring for Accurate Measurements When you are wiring a single phase device there are the four patterns of terminal wiring positions shown in the following figures for wiring the voltage input and current input terminals Depending on the terminal wiring positions the effects of stray capacitance and the effects of the measured voltage and current amplitudes may become large To make accurate measurements refer to the items below when wiring the voltage input and current input terminals Effects of Stray Capacitance When measuring a single phase device the effects of stray capacitance on measure
3. Current input terminals A For connecting current measurement cables sections 2 8 2 9 and 2 11 External current sensor input connector A For connecting cables from an external current sensor section 2 10 Model with the motor evaluation function option Torque signal input connector option N Receives signals from a torque meter during motor evaluation D Sreto section 4 1 Revolution signal input connectors option A Receive signals from a revolution sensor during motor evaluation section 4 1 env Model with the auxiliary input option Auxiliary input connectors option A Receive signals from sensors section 4 2 Power inlet A Power connection section 2 3 RGB XGA output connector option A Transmits image signals section 4 5 USB port for PCs Use to connect the WT1800 to a PC that has a USB port Usage explanation communication interface user s manual Ethernet port Use to connect the WT1800 to a LAN Usage explanation Features guide and communication interface user s manual D A output and remote control connector l option A D A output Transmits DC voltage an analog signal that corresponds to the numeric data section 4 6 Remote control Receives control signals for holding values performing single measurements starting stopping and resetting integration and
4. YOKOGAWA dealer Problems and Solutions Reference Section Nothing appears on the screen when you turn on the power Securely connect the power cord to the instrument and to the power outlet 2 3 Set the supply voltage to within the permitted range 2 3 Check the screen settings 20 4 The built in power supply fuse may have blown Servicing is required 5 2 The displayed data is not correct Confirm that the ambient temperature and humidity are within their specified 2 2 ranges Confirm that noise is not affecting the measurement 2 1 2 5 Check the measurement cable wiring 2 8 2 11 Check the wiring system 2 8 2 11 1 1 Confirm that the line filter is off 1 13 Check the measurement period settings 1 12 Check the FAQ at the following URL http tmi yokogawa com Turn the power off and then on again 2 4 Keys do not work Check the REMOTE indicator If the REMOTE indicator is illuminated press LOCAL to turn it off Confirm that keys are not locked 20 10 Perform a key test If the test fails servicing is necessary 20 7 Triggering does not work Check the trigger conditions 9 1 Confirm that the trigger source is being applied 9 1 Unable to make harmonic measurements Check the PLL source settings 24 Confirm that the input signal that you have selected as the PLL source meets the 2 1 specifications Cannot print to the built in printer The printer head may be damaged or
5. HSFilter u4 n u2 n u3 n 3 n 0 ZU V rms m Three phase three wire True rms value EXT y HSFilter u1 n u2 n u3 n 3 with three voltage N n 0 away mean Rectified ess Tune calibrated to the rms value T 1 c x HSFilter u1 n u2 n u3 n 3 242 N 3 rmean 1 Rectified mean value N HSFilter u1 n u2 n u3 n 3 n 0 dc 2 1 N Simple average N HSFilter u1 n u2 n u3 n 3 n 0 ZI A rms 4 Nc Three phase True rms value HSFilter i1 n i2 n i3 n 3 four wire N f SFAW mean Rectified mean value calibrated to the rms value T 1 Na HSFilter i1 n i2 n i3 n 3 a Nw it mp 112 153 n 9 3 rmean 4 Nc Rectified mean value HSFilter li1 n i2 n i3 n 3 n 0 dc N Simple average HSFilter i1 n i2 n i3 n 3 n 0 zd N Continued on next page App 10 IM WT1801 03EN Appendix 1 Symbols and Determination of Measurement Functions Measurement Methods of Computation and Determination Function ZI A rms 1 Three phase three wire True rms value X HSFilter i1 n i2 n i3 n 3 with three voltage N E away mean Rectified Pil calibrated to the rms value T x HSFilter i1 n i2 n i3 n 3 aA N G i4 n i2 n i3 n 3 rmean 4X Rectified mean value N HSFilter Ji1 n i2 n i3 n 3 n 0 dc 1 N Simple average 7 HSFilter i1 n i2
6. WT1805 05 50A 50A 50A 50A_ 50A 14 5A 50A 50A 50A_ 50A 23 5A 5A 50A 50A 50A 32 5A 5A 5A 50A 50A 41 5A 5A 5A 5A 50A 50 5A 5A 5A 5A 5A WT1800 six input element model WT1806 06 50A 50A 50A 50A 15 5A 50A 50A 50A 24 5A 5A 50A 50A 33 5A 5A 5A 50A 42 5A 5A 5A 5A 51 5A 5A 5A 5A 60 5A 5A 5A 5A IM WT1801 03EN Checking the Package Contents Model Suffix Code Description Power cord D UL CSA standard power cord part no A1006WD Maximum rated voltage 125 V F VDE standard power cord part no A1009WD Maximum rated voltage 250 V R BS standard power cord part no A1054WD Maximum rated voltage 250 V Q AS standard power cord part no A1024WD Maximum rated voltage 250 V H GB standard power cord part no A1064WD Maximum rated voltage 250 V Language HE English menu HC Chinese English menu HG German English menu Options EX1 External current sensor input for the WT1801 EX2 External current sensor input for the WT1802 EX3 External current sensor input for the WT1803 EX4 External current sensor input for the WT1804 EX5 External current sensor input for the WT1805 EX6 External current sensor input for the WT1806 B5 Built in printer G5 Harmonic measurement G6 Simultaneous dual harmonic measurement IDT Delta computation FQ Add on frequency measurement I1 RGB output IDA 20 channel D A output IMTR Motor evaluation function AUX Auxiliary
7. U6 300V mumo 16 20A aura Sync Sre I6 Motor input or auxiliary input setup parameters option Data update interval Date and time Data update count Input Element Setup Parameters Input element number Harmonic group option Element 1 HRHi group epe NULL indicators WLLL 30 Voltage range ULL 1 2 Current range yncz r1 Integ z Reset Auto range indicators Synchronization source Integration status Wiring system Input elements of the same wiring unit are indicated with a border Non Numeric Displays O L Overload T Displayed if the measured value exceeds 140 of the measurement range Overflow im Displayed if the measured or computed result cannot be displayed using the specified decimal place or unit No data Displayed if a measurement function is not selected or if there is no numeric data Error E r ro r Displayed in cases such as when a measured value is outside of its determined range Note The WT1800 LCD may have a few defective pixels For details see section 6 2 Display 1 12 IM WT1801 03EN 1 4 System Configuration Power supply Wind speed sensor Pyranometer Current sensor Torque Y meter Revolution sensor etc Voltage Current Apply one of them Apply one of them vy vy Auxiliary input VW Motor evaluation option a opt
8. creas ce nnne reete ttn nennt 4 4 A 4 4 External Start Signal I O MEAS START enne nnne 4 5 A 4 5 RGB Output RGB OUT XGA option ssessssseeneennneeenenneen nennen 4 7 A 4 6 D A Output and Remote Control D A OUTPUT option eee 4 8 Chapter 5 Troubleshooting Maintenance and Inspection 5 1 TROUBIESHOOUMG estes eire reote ere xe e o P RE DE e Peces Prater depre 5 1 5 2 Power SUPDIY FUSO RR 5 2 5 9 Recommended Replacement Parts sssssssssssssssseseeeee ennt 5 3 IM WT1801 03EN xiii Contents Chapter 6 Appendix Specifications 6 1 je DE 6 1 6 2 BI 6 2 6 3 Displayed Items ie ne Wha kel ee teas ceci Dre ed vic re tar s 6 3 6 4 ACCURACY C 6 7 6 5 id cce C 6 10 6 6 Harmonic Measurement Option zsiros eaaa 6 12 6 7 Motor Evaluation Function Option eem enne 6 14 6 8 Auxiliary Input Option rencontre dette leta Ere e ded E eR ete 6 15 6 9 D A Output and Remote Control Option em 6 15 6 10 High Speed Data Capturing Option essem 6 16 6 11 Computations and Event Feature ssssssssssssssssssese eene ennt enne 6 16 612 BISplayca deiecti e orte os am o Ae EI e UU Bee suere ENS 6 17 6 13 Data Storage Feal re aee centre ei nes di aa emat e asta pel ees 6 17 o MEM dou ce 6 17 6
9. Move cursor up Same as left Move cursor up Execute PAGE UP Execute PAGE TOP Execute PAGE UP No feature is assigned to the key App 40 IM WT1801 03EN Appendix 8 List of Initial Settings and Numeric Data Display Order Factory Default Settings Example for a model with six input elements installed The default settings vary depending on the number of installed input elements and what options are installed Item Setting RANGE 5 A Input Element 50 A Input Element U Range 1000V 1000V Input Terminal Direct Direct Direct input Range 5A 50A External Sensor Range 10V 10V SENSOR RATIO 10 0000mV A WIRING Wiring Setting n Formula Udef2 Element Independent AMeasure displayed on models with the delta computation option 1P2W PZB PZA PZA PZB Off Off Off Off P1 None None None P1 None None None Off AMeasure Type AMeasure Mode rms SCALING Scaling Off VT Scaling 1 0000 CT Scaling 1 0000 Scaling Factor 1 0000 LINE FILTER Normal measurement mode Off Cutoff 0 5kHz High speed data capturing mode On Cutoff 300kHz FREQ FILTER Off AVG Averaging Off Averaging Type Exp Exp Count 2 Lin Count 8 MEASURE User Defined Function On Off Name Unit Expression Function Off Avg W Ww WH E1 TI E1 3600 Function2 Off P loss Ww P E1 P E2 Function3 Off U ripple UPPK E1 UMPK E1 2 UDC E1 100 Function4 Off l ripple 96 IPPK E1 IMP
10. The following is a list of operands that can be used in user defined functions Measurement Functions Used in Normal Measurement Measurement Function URMS User Defined Function Parameter in Element Example URMS E1 E1 to E6 Wiring Unit E7 to E9 UMN UMN E1 UDC UDC E1 URMN URMN E1 UAC UAC E1 IRMS IRMS E1 IMN IMN E1 IDC IDC E1 IRMN IRMN E1 IAC IAC E1 P P E1 S S E1 QQ Q E1 LAMBDA LAMBDA E1 PHI PHI E1 FU FU E1 FI FI E1 UPPK UPPK E1 UMPK UMPK E1 IPPK IPPK E1 IMPK IMPK E1 PPPK PPPK E1 PMPK PMPK E1 CFU CFU E1 CFI CFI E1 PC PC E1 User Defined Function Example WH E1 Parameter in Element E1 to E6 Wiring Unit E7 to E9 WHP E1 WHM E1 AH E1 AHP E1 AHM E1 SH E1 QH E1 TI E1 App 32 IM WT1801 03EN Appendix 6 User Defined Function Operands Efficiency Measurement Function User Defined Function Parameter in Element Wiring Unit E1 to E6 None or space E7 to E9 None or space None or space You cannot omit the parentheses User Defined Functions Measurement Function Us
11. Voltage Range V A 150 00 300 00 600 00 1000 0 10 000 600 00 W 1 0000KW 1 5000kW 3 0000KW 6 0000 kW 10 000KW Active Power Range of a Wiring Unit with a 1P3W or 3P3W System or a 3P3W System That Uses a 3V3A Method Current Voltage Range V Range 3 0000 6 0000 10 000 30 000 60 000 100 00 6 TAL 18990 15009 5 0000 15 000W 30 000W 60 000 w 100 000W 15000W 300 00W 0 30 000W 60 000 W 120 000W 20000W 300 00W 600 00 W ooo 60 000W 120 000W 240 00W 400 00W 800 00 w 1200 00W App 22 IM WT1801 03EN Appendix 4 Power Range Current Voltage Range V Teme LLL NNI 10 000m 1200 00 mW 2 0000 W 3 0000 W 6 0000 W 12 0000 W 20 000 W 100 00m 12 0000 W 20 000 W 30 000 W 60 000 W 120 000 W 200 00 W 200 00m 24 000 W 40 000 W 60 000 W 120 000 W 240 00 W 400 00 W Active Power Range of a Wiring Unit with a 3P4W Wiring System Current Voltage Range V 30 000 1 0000 4 5000 W 9 0000 W 18 0000 W 30 000 W 45 000 W 90 000 W Current Voltage Range V Range 60 000 100 00 300 00 600 00 1000 0 A 150 00 IM WT1801 03EN App 23 xipueddy E Appendix 4 Power Range When the Crest Factor Is Set to CF6 Active Power Range of Each Element Current Voltage Range V Range AD 0 7500 1 5000 3 0000 5 0000 7 500 15 000 5 0000m 25 000m 18750mW 37500mW 75 00mW 125 00mW 18750mW 375 00mW 250 00m 18750mW 3750
12. Returning to the Previous Screen To return to the previous screen press RESET Hiding Help Press HELP or ESC to hide the help screen IM WT1801 03EN Chapter 4 4 1 AN Auxiliary I O Motor Torque Signal and Revolution Signal Input TORQUE SPEED option CAUTION Only apply signals that meet the following specifications Signals that do not meet the specifications such as those with excessive voltage may damage the WT1800 Torque Signal Input Connector TORQUE A TORQUE 20V MAX Apply a torque meter output signal a DC voltage analog signal or pulse signal that is proportional to the motor s torque that meets the following specifications DC Voltage Analog input Item Specifications Connector type Isolated BNC connector Input range 1V 2V 5V 10V 20V Effective input range Input resistance Maximum allowable input Continuous maximum common mode voltage 0 to 110 of the measurement range Approx 1 MO 22 V 42 Vpeak or less Pulse Input Item Specifications Connector type Frequency range Amplitude input range Detection level Pulse width Input resistance Continuous maximum common mode voltage Isolated BNC connector 2 Hz to 1 MHz 12 Vpeak H level approx 2 V or more L level approx 0 8 V or less 500 ns or more Approx 1 MQ 42 Vpeak or less IM WT1801 03EN O Aveixny S 4 1 Motor Torque Signal and Revolution Signal Inpu
13. Same as left Execute ESC Same as left Back Space Back Space Same as left Tab Space Bar Space Same as left UTILITY menu Execute HELP Same as left Caps Lock No feature is assigned to the key Caps Lock Same as left IM WT1801 03EN xipueddy Appendix 7 USB Keyboard Key Assignments When the Ctrl Key Is Held Down on the When the Soft Keyboard Is Displayed Key USB Keyboard on the WT1800 When the WT1800 Shift on the Shift Is On USB Keyboard Execute U RANGE UP Select soft key 1 Same as left Select soft key 1 When the WT1800 Shift Is On Same as left Execute U RANGE DOWN Select soft key 2 Same as left Select soft key 2 Same as left Execute U CONFIG Select soft key 3 Same as left Select soft key 3 Same as left Execute U AUTO Select soft key 4 Same as left Select soft key 4 Same as left Execute RANGE UP Select soft key 5 Same as left Select soft key 5 Same as left Execute RANGE DOWN Select soft key 6 Same as left Select soft key 6 Same as left Execute CONFIG Execute DIRECT MEASURE Select soft key 7 Same as left Select soft key 7 Same as left Execute AUTO Execute U I P Execute S Q A 0 Execute WP q TIME Same as left Execute FU Fl n Same as left Execute PRINT PRINT menu E
14. Specifications When line filters are turned off Add the following accuracy values to the normal measurement accuracy values Frequency Voltage Current Power 0 5 Hz lt f lt 10 Hz 0 0596 of reading 0 25 of range 0 05 of reading 0 25 of range 0 1 of reading 0 5 of range 10 Hz lt f lt 45 Hz 0 05 of reading 0 25 of range 0 05 of reading 0 25 of range 0 1 of reading 0 5 of range 45 Hz lt f lt 66 Hz 0 05 of reading 0 25 of range 0 05 of reading 0 25 of range 0 1 of reading 0 5 of range 66 Hz lt f lt 440 Hz 0 05 of reading 0 25 of range 0 05 of reading 0 25 of range 0 1 of reading 0 5 of range 440 Hz lt f lt 1 kHz 0 05 of reading 0 25 of range 0 05 of reading 0 25 of range 0 1 of reading 0 5 of range 1 kHz fs 10 kHz 0 5 of reading 0 25 of range 0 596 of reading 0 25 of range 1 of reading 0 5 of range 10 kHz lt f lt 100 kHz 0 5 of range 0 596 of range 196 of range 100 kHz lt f lt 260 kHz 196 of range 196 of range 2 of range When line filters are turned on Add the line filter accuracy values to the accuracy values when the line filters are turned off The items listed below apply to the tables in this section The crest factor is set to 3 the power factor is 1 Power figures that exceed 2
15. lt ole lo eo Execute SET Execute ESC Same as left Same as left Escape Same as left Same as left Execute SET Execute ESC Same as left Same as left Back Space Same as left Space Same as left UTILITY menu Execute HELP Same as left Caps Lock No feature is assigned to the key Caps Lock Same as left IM WT1801 03EN Appendix 7 USB Keyboard Key Assignments Key When the Ctrl Key Is Held Down on the USB Keyboard Execute U RANGE UP When the WT1800 Shift Is On When the Soft Keyboard Is Displayed on the WT1800 Shift on the USB Keyboard Select soft key 1 Same as left Select soft key 1 When the WT1800 Shift Is On Same as left Execute U RANGE DOWN Select soft key 2 Same as left Select soft key 2 Same as left Execute U CONFIG Select soft key 3 Same as left Select soft key 3 Same as left Execute U AUTO Select soft key 4 Same as left Select soft key 4 Same as left Execute RANGE UP Select soft key 5 Same as left Select soft key 5 Same as left Execute RANGE DOWN Select soft key 6 Same as left Select soft key 6 Same as left Execute CONFIG Execute DIRECT MEASURE Select soft key 7 Same as left Select soft key 7 Same as left Execute AUTO Execute U l P Execute S Q A 0 Execute WP q TIME Same as left
16. sjueuiaJnseo y 104 suoneuedaag Huye N H 2 4 Turning the Power Switch On and Off Before Turning On the Power Check That e The instrument is installed properly section 2 2 Installing the Instrument The power cord is connected properly section 2 3 Connecting the Power Supply Power Switch Location The power switch is located in the lower left of the front panel Turning the Power Switch On and Off The power switch is a push button Press the button once to turn the instrument on and press it again to turn the instrument off Operations Performed When the Power Is Turned On When the power is turned on a self test starts automatically When the self test completes successfully the screen that was displayed immediately before the power was turned off appears Note After turning the power off wait at least 10 seconds before you turn it on again fthe instrument does not operate as described above when the power is turned on turn the power off and then check that The power cord is securely connected The correct voltage is coming to the power outlet see section 2 3 Connecting the Power Supply After checking the above try turning on the power while holding down RESET to initialize the settings reset them to their factory defaults For details about initializing the settings see section 3 6 Initializing Settings fthe instrument still does not work properly contact y
17. 3 Turn on the WT1800 and the monitor IM WT1801 03EN 4 7 O Aveyixny S 4 6 D A Output and Remote Control D A OUTPUT option If you select the DA option 20 channel D A output and remote control features are installed in the WT1800 Connector Pinout The connector s pinout is explained in the table below Pin No Signal Pin No Signal 1 D A CH1 19 D A CH2 A us 2 D A CH3 20 D A CH4 3 D A CH5 21 D A CH6 4 D A CH7 22 D A CH8 1 pp 19 5 D A CH9 23 D A CH10 gt 6 D ACH11 24 D A CH12 mH 7 D A CH13 25 D A CH14 a 8 D A CH15 26 D A CH16 dE 9 D A CH17 27 D A CH18 10 D A CH19 28 D A CH20 a 11 D ACOM 29 D ACOM 1 12 D ACOM 30 D ACOM LAL 13 D ACOM 31 D ACOM M d a 14 EXT PRINT 32 EXT RESET S 15 EXT STOP 33 EXT START o 16 EXT SINGLE 34 EXT HOLD 17 INTEG BUSY 35 EXT COM 18 EXT COM 36 EXT COM Note The D A COM and EXT COM signals are connected internally D A Output D A OUTPUT You can generate numeric data as a 5 V FS DC voltage signals from the rear panel D A output connector You can set up to 20 items channels A CAUTION Donot short or apply an external voltage to the D A output terminal Doing so may damage the WT1800 When connecting the D A output to another device do not connect the wrong signal pin Doing so may damage the WT1800 or the connected device Item Specifications D A conversion resolut
18. Change Drive D 0000 CSV 3 06K 2010 09 30 11 09 42 r u tn 0000 PNG H2 r ee JI oon ser kis Rename EE r u Click the file folder or a ls 0001 PI r Make Dir en Sel 59 2K 2010 09 30 11 js media drive that you want Topy D 0002 csv 200K 2010 09 30 11 09 46 r u to select gt Ci 0002 PNG 163K 2010 09 30 11 09 48 r u Move D 0002 SET 59 2K 2010 09 30 11 09 50 r w D 0003 CSV 2 98K 2010 09 30 11 09 50 r w Ci 0003 PNG 163K 2010 09 30 11 0952 r Scroll bar Ci 0003 SET 59 2K 2010 09 30 11 0954 rw F Click the item that you want to select IM WT1801 03EN suone4edo uouiulo 3 4 Setting the Menu and Message Languages This section explains how to set the language that is used to display the menus and messages on the screen The factory default setting is ENG English UTILITY System Config Menu Press UTILITY the System Config soft key and then the Language soft key to display the following menu Language Menu Language Message Language T Set the message language Setting the Menu Language Menu Language You can choose to display menus using one of the following languages English Japanese Chinese German T Set the menu language Setting the Message Language Message Language Error messages appear when errors occur You can choose to display these messages and the help see section 3 7 using one of the following languages The error codes that accompany erro
19. Efficiency of a Power Transformer Power Transformer with Single Phase Input and Single Phase Output If you are using input elements 1 and 2 to measure a device that converts single phase AC power to single phase DC power set the synchronization source of input elements 1 and 2 to the voltage or current on the AC power end In the example shown in the figure below set the synchronization source of input elements 1 and 2 to U1 or 11 The measurement periods of input element 1 input end and input element 2 output end will match and it will be possible to measure the power conversion efficiency at the input and output ends of the power transformer more accurately Input AC power U1 and I1 Output DC power U2 and I2 Power transformer Synchronization Source Setup Example Input element 1 U1 or 11 Input element 2 Likewise if you are using input elements 1 DC end and 2 AC end to measure a device that converts single phase DC power to single phase AC power set the synchronization source of input elements 1 and 2 to the voltage or current on the AC power end input element 2 In the example shown in the figure below set the synchronization source of input elements 1 and 2 to U2 or I2 Input DC power U1 and I1 Output AC power U2 and I2 p Power transformer Synchronization Source Setup Example Input element 1 U2 or 12 Input element 2 Pow
20. Execute FU Fl n Same as left Execute PRINT PRINT menu Execute IMAGE SAVE IMAGE SAVE menu Execute INPUT INFO Execute U I MODE Execute PAGE UP Execute PAGE TOP Execute PAGE UP Execute PAGE TOP End ELEMENT ALL Page Down Execute PAGE DOWN Execute PAGE END Execute PAGE DOWN Execute PAGE END Move cursor to the right Same as left Move cursor to the right Same as left Move cursor to the right Same as left Move cursor to the left Same as left Move cursor to the left Same as left Move cursor to the left Same as left Move cursor down Same as left Move cursor down Same as left Numeric Keypad Move cursor up Same as left Move cursor up Same as left When the Ctrl Key Is Held Down on When the Soft Keyboard Is Displayed on the USB Keyboard the WT1800 When the WT1800 Shift on the Shift on the Shift Is On USB Keyboard USB Keyboard Num Lock I I Same as left Same as left Same as left Same as left Execute SET Same as left Same as left Execute SET Move cursor down Same as left Move cursor down Execute PAGE DOWN Execute PAGE END Execute PAGE DOWN Move cursor to the left Same as left Move cursor to the left Move cursor to the left Move cursor to the right Same as left Move cursor to the right Move cursor to the right
21. Input resistance Approx 2 MQ input capacitance Approx 10 pF Current Direct input 50 A input element approx 2 mQ approx 0 07 uH 5A input element approx 100 mQ approx 0 07 uH External current sensor input approx 1 MO Instantaneous maximum allowable input within 20 ms Instantaneous maximum allowable input within 1 s Voltage Peak value of 4 kV or rms value of 2 kV whichever is less Current Direct input 50 A input element peak value of 450 A or rms value of 300 A whichever is less Direct input 5 A input element peak value of 30 A or rms value of 15 A whichever is less External current sensor input peak value less than or equal to 10 times the range Voltage Peak value of 3 kV or rms value of 1 5 kV whichever is less Current Direct input 50 A input element peak value of 150 A or rms value of 55 A whichever is less Direct input 5 A input element peak value of 10 A or rms value of 7 A whichever is less External current sensor input peak value less than or equal to 10 times the range Continuous maximum allowable input Voltage Peak value of 2 kV or rms value of 1 1 kV whichever is less If the frequency of the input voltage exceeds 100 kHz 1200 f Vrms or less fis the frequency of the input voltage in units of kHz Current Direct input 50 A input element peak value of 150 A or rms value of 55 A whichever is less Direct input 5 A input element peak va
22. Rated voltage 300 V 758929 1 Two pieces in one set For use with measurement lead 758917 Rated voltage 1000 V Fork terminal adapter set 758921 1 Two pieces in one set For use with measurement lead 758917 Rated voltage 1000 V Rated current 25A BNC to BNC measurement 366924 1 42 V or less Length 1 m lead 366925 1 42 V or less Length 2 m External sensor cable B9284LK 1 For connecting to the WT1800 s external current sensor input connector Length 0 5 m Conversion adapter 758924 1 BNC 4 mm socket adapter Rated voltage 500 V These optional accessories are sold individually The actual voltage that can be used is the lowest voltage of the WT1800 and cable specifications Measurement Safety terminal Safety terminal Alligator clip leads adapter set adapter set adapter set 758917 758923 758931 758922 Alligator clip Fork terminal BNC cable External sensor adapter set adapter set 366924 1 m cable 758929 758921 366925 2 m B9284LK pq Conversion adapter 758924 Consumables Sold separately The following consumables are available for purchase separately For information about ordering consumables contact your nearest YOKOGAWA dealer Name Part No Min Q ty Notes Printer roll paper B9316FX 10 Heat sensitive paper One roll is one unit Length 10 m vi IM WT1801 03EN Safety Precautions This instrument is an IEC safety class instrument provided with a terminal for protective earth groun
23. e gt e p INTEG BUSY The INTEG BUSY output signal is set to low level during integration Use this signal when you are observing integration Holding the Updating of Displayed Data The same functionality as pressing HOLD Apply an EXT HOLD signal as shown in the following figure 10 ms or more EXT HOLD 1 IM WT1801 03EN 4 9 O Aveixny S 4 6 D A Output and Remote Control D A OUTPUT option Updating Held Display Data The same functionality as pressing SINGLE While the display is being held you can update it by applying an EXT SINGLE signal 10 ms or more EXT SINGLE 010p Note If the width of the low pulse of the EXT SINGLE signal does not meet the conditions shown in the above figure the signal may not be detected by the WT1800 Printing on the Built In Printer Option the same functionality as pressing PRINT Apply an EXT PRINT signal as shown in the following figure 10 ms or more EXT PRINT _ 4 10 IM WT1801 03EN Chapter 5 5 1 Troubleshooting Maintenance and Inspection Troubleshooting Dealing with Problems Ifa message appears on the screen see the appendix in the user s manual IM WT1801 02EN e If servicing is necessary or if the instrument does not operate properly even after you have attempted to deal with the problem according to the instructions in this section contact your nearest
24. network settings D A output settings and performing self tests 1 10 IM WT1801 03EN 1 2 Keys LOCAL Key Press this key to switch from remote mode in which the REMOTE indicator is illuminated to local mode in which front panel key operations are valid This key is disabled when the WT 1800 is in local lockout mode SHIFT LOCAL KEY LOCK Key Combination Press this key combination to lock the keys on the front panel The LOCAL KEY LOCK key illuminates Press the key combination again to unlock the keys SHIFT Key Press this key once to illuminate it and access the features that are written in purple below each key Press the key again to disable the shifted state REMOTE EES Ged Do KEY LOCK SINGLE wu mu NULL SET m RESET Key Press this key to reset the entered value to its default value SET Key Press this key to display menus that you select using the cursor keys and to confirm items and values in the selected window When the menu is turned off on the numeric data display press this key to open a menu for changing displayed items Cursor Keys A Y 4 Press the lt keys to move the cursor between numeric digits Press the A V keys to increment or decrement the value of a digit You can also use the A V keys to select setup items PAGE Y and PAGE A Keys When measured items span over multiple pages on the
25. xiv IM WT1801 03EN Chapter 1 Component Names and Functions 1 1 Front Panel Rear Panel and Top Panel Front Panel Soft keys Use to select items on the soft key menus that appear during configuration ESC key Use to clear soft key menus and pop up menus Setup and execution keys Handle Explanation section 1 2 YOKOGAWA 4 WT1800 ew ra mn VOLTAGE RANGE CURRENT RANGE r1 V 8888 amp BBB sk owi nur ow mm ITEM amp ELEMENT LCD OOUOO0O0U00D POWER meu PoC o ur mo Built in printer option Power switch Use to print screen images and numeric data USB ports for peripherals Use to connect a USB keyboard mouse or memory device Usage explanation section 3 3 and the user s manual IM WT1801 03EN 1 1 suonoun pue sauiewN 3ueuoduio E 1 1 Front Panel Rear Panel and Top Panel Rear Panel GP IB connector Use to communicate with the WT1800 through the GP IB interface Explanation of the communication feature communication interface user s manual Voltage input terminals A For connecting volta
26. Capturing During high speed data capturing there are measurement conditions and computations whose settings you cannot change and features that you cannot execute em Operation Control Settings Item Operation Switching the Display Setup Parameter List Display IN Fundamental Measurement Conditions Frequency Filter IN Harmonic Measurement Harmonic Measurement Conditions NO Motor Evaluation Synchronization Source IN Electrical Angle Measurement INO Auxiliary Input Computation Rebar Power and Reactive Power Sonputaton Types S Formula Corrected Power Equation Pc Formula Sampling Frequency App 52 IM WT1801 03EN Appendix 10 Limitations on the Features during High Speed Data Capturing Item Operation Saving and Loading Data Saving WaveformDisplayData IN Saving Numeric Data IN Printing Automatic Printing Utility D A Output Other Features NULL Feature Zero Level Compensation Yes The setting can be changed or the feature can be performed No The setting cannot be changed or the feature cannot be performed 1 This setting or operation is unavailable when high speed data capturing has been started Start 2 This setting or operation is unavailable when a high speed data capturing file is being recorded to Rec 3 When the wiring system of a wiring unit has been set to a single phase three wire system 1P3W or a three phase three wire system 3P3W the voltage UZ current I
27. Date and time settings are backed up using an 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 3 12 IM WT1801 03EN 3 6 Initializing Settings This section explains how to 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 from scratch For information about the initial settings see appendix 8 List of Initial Settings and Numeric Data Display Order UTILITY System Config Menu Press UTILITY the System Config soft key and then the Initialize Settings soft key to display the following screen Alert Really All Settings will be initialized Do you want to execute Lok Cancel Initializes the Cancels the initialization settings of settings Settings That Cannot Be Reset to Their Factory Default Values Date and time settings Communication settings Menu and message language settings To Reset All Settings to Their Factory Default Values While holding down RESET turn the WT1800 on All settings ex
28. NAT uos 1 S2 PEN 2 Ns S2 3 S1 S2 S3 TYPE3 y Px QZ TYPE1 Q1 Q2 Q1 Q2 Q3 QE var TYPE2 J SZ PX TYPE3 Q1 Q2 Q1 Q2 Q3 Pc W Pc1 Pc2 Pc1 Pc2 Pc3 App 2 IM WT1801 03EN Appendix 1 Symbols and Determination of Measurement Functions Table 3 3 Measurement Function Methods of Computation and Determination For information about the symbols in the equations see the notes Wiring system Single phase Three phase oo eu Three phase three wire three wire i four wire three current method 1P3W 3P3W 3P3W 3V3A 3P4W WPz WP1 WP2 WP1 WP2 WP3 WPZ Wh WP z When the watt hour integration method for each polarity is Charge Discharge WP 1 WP 2 WP 3 WP 1 WP 2 When the watt hour integration method for each polarity is Sold Bought WP z is the sum of the positive active power WPX values at each data update interval WP When the watt hour integration method for each polarity is Charge Discharge WP 1 WP 2 WP 3 WP 1 WP 2 When the watt hour integration method for each polarity is Sold Bought 2 WP is the sum of the negative active power WP values at each data 2 update interval o S qx qi q2 qi q2 q3 w ax Ah qt q 1 q 2 q q 2 qe q q 1 q 2 q 1 q 2 q 3 N 4 SZ n Time WSz VAh n 1 Sx n is the nth apparent power X function N is the number of data updates The unit of time is hours N WOE varh
29. PZ4000 systems are different WT130 2533 2532 etc i i You can change from another When you change from another digital power meter to the WT1800 digital power meter to the WT1800 without making changes to the you have to make changes to the three phase three wire systems three phase three wire systems For example if you replace the WT 1000 used in a three phase three wire system with the WT1800 and leave the wiring unchanged the measured power of each element will be different between the WT1000 and the WT1800 Refer to this manual and re wire the system correctly IM WT1801 03EN 2 13 sjueujaJnseo y 104 suoneuedaag Burjelw B 2 9 Wiring the Circuit under Measurement for Direct Input This section explains how to wire the measurement cable directly from the circuit under measurement to the voltage or current input terminal To prevent electric shock and damage to the instrument follow the warnings given in section 2 5 Precautions When Wiring the Circuit under Measurement Connecting to the Input Terminal Voltage Input Terminal The terminals are safety banana jacks female that are 4 mm in diameter Only insert a safety terminal whose conductive parts are not exposed into a voltage input terminal If you are using the included 758931 Safety Terminal Adapter see section 2 6 Current Input Terminal When the voltage of the circuit under measurement is being applied to the current input te
30. Ww lez Time QZ n is the nth reactive power X function N is the number of data updates The unit of time is hours A E OE cos S Note u n denotes the instantaneous voltage i n denotes the instantaneous current n denotes the n measurement period The measurement period is determined by the synchronization Source setting AVG denotes the simple average of the item in brackets determined over the data measurement interval The data measurement interval is determined by the synchronization source setting PX denotes the active power of wiring unit 2 Input elements are assigned to wiring unit 2 differently depending on the number of input elements that are installed in the WT1800 and the selected wiring system pattern The numbers 1 2 and 3 used in the equations for Urms2 Umn2 Urmn 2 Udc2 Uacz Irms2 Imnz Irmnz Idc2 lac P2 SZ QZ Pc2 WP2 and q indicate the case when input elements 1 2 and 3 are set to the wiring system shown in the table Equation Type 3 for SZ and Q2 can only be selected on models with the harmonic measurement option Onthe WT1800 S Q A and are derived through the computation of the measured values of voltage current and active power however when Type 3 is selected Q is calculated directly from the sampled data Therefore for distorted signal input the value obtained on the WT1800 may differ from that obtained on other instruments that use a different met
31. a DC Signal When there are ripples in the DC signal if the level of the ripples is greater than or equal to the detection level of the frequency measurement circuit see the conditions listed under Accuracy under Frequency Measurement in section 6 5 Features and the period can be detected accurately and stably a more accurate DC measurement is possible If a large AC signal is superposed on a DC signal you can achieve a more stable measurement by detecting the AC signal period and averaging it In addition if a small fluctuating pulse noise riding on the DC signal crosses level zero that point is detected as a zero crossing As a result sampled data is averaged over an unintended period and measured values such as voltage and current may be unstable You can prevent these kinds of erroneous detections by setting the synchronization source to None All of the sampled data in the data update interval is used to determine measured values Set the synchronization source according to the signal under measurement and the measurement objective App 28 IM WT1801 03EN Appendix 5 Setting the Measurement Period Data update interval Data update interval Measurement period Measurement period La When the synchronization source setting is turned off Unintended zero crossing caused by pulse noise Setting the Synchronization Period When M
32. are reference values 5 A input element and external sensor input apparent power reading x 0 1 0 05 x f kKHz 50 A input element and direct input apparent power reading x 0 1 0 3 x f KHz When 0 A 1 Power reading x power reading error 96 power range error 96 x power range indicated apparent power value tan x influence when A 0 where Q is the phase angle between the voltage and current Line filter influence When the cutoff frequency fc is 100 Hz to 100 kHz Voltage and current Up to approx fc 2 Hz Add 2 x 1 N 1 1 f fc x 100 20 x f 300k 96 of reading Applies to frequencies less than or equal to 30 kHz Power Up to approx fc 2 Hz Add 4 x 1 N 1 1 f fc x 100 40 x f 300k of reading Applies to frequencies less than or equal to 30 kHz When the cutoff frequency fc is 300 kHz to 1 MHz Voltage and current Up to approx fc 10 Hz Add 20 x f fc of reading Power Up to approx fc 10 Hz Add 40 x f fc of reading Lead and lag detection The lead and lag of the voltage and current inputs can be detected correctly for the following Phase angle amp s Sine waves D lead and G lag When the measured value is 5096 or more 10096 or more when the crest factor is 6 of the measurement range Frequency 20 Hz to 10 kHz Phase difference 5 to 175 Symbol s in the reactive s is the sign for the lead and lag of each element It is negative when
33. external current sensor input connector Remove the measurement cable connected to the current input terminal Because the external current sensor input terminal and the current input terminal are connected internally connecting both terminals simultaneously not only results in measurement errors but may also cause damage to the instrument Also when the voltage of the circuit under measurement is being applied to the external current sensor input terminals do not touch the current input terminals Doing so is dangerous because the terminals are electrically connected inside the instrument Note The thick lines on the wiring diagrams are the parts where the current flows Use wires that are suitable for the current levels To measure the apparent power and power factor more accurately on an unbalanced three phase circuit we recommend that you use a three phase three wire system that uses a three voltage three current method 3P3W 3V3A Note that the frequency and phase characteristics of the current sensor affect the measured data Make sure that you have the polarities correct when you make connections If the polarity is reversed the polarity of the measurement current will be reversed and you will not be able to make correct measurements Be especially careful when connecting clamp type current sensors to the circuit under measurement because it is easy to reverse the connection To minimize error when using shunt type current
34. from the revolution sensor B offset Rotating speed NULL null value When the input signal from the revolution sensor is the number of pulses s NULL N S scaling factor X number of input pulses from the revolution sensor per minute N number of pulses per revolution NULL null value When the input signal from the torque meter is DC voltage an analog signal S AX B NULL S scaling factor A slope of the input signal X input voltage from the torque meter B offset NULL null value When the input signal from the torque meter is a pulse signal Torque S AX B NULL S scaling factor A torque pulse coefficient X pulse frequency B torque pulse offset NULL null value The WT1800 computes the torque pulse coefficient and torque pulse offset from torque values the unit is Nem at the upper and lower frequency limits Normally use a scaling factor of 1 If you are using a unit other than Nem set the unit conversion ratio 120 the frequency of the frequency measurement source Hz Number of motor poles Synchronous speed The unit of synchronous speed is fixed to min 1 or rpm SyncSp Normally use the voltage or current supplied by the motor as the frequency measurement source If you use any other signals the synchronous speed may not be computed correctly Slip Slip SyncSp Speed o 100 SyncSp Monitor output Pm 21 Speed To
35. input HS High speed data capturing 1 This features covers firmware versions 2 01 or later of the WT1800 2 Includes two rolls of paper B9316FX 3 The G5 and G6 options cannot be installed on the same instrument 4 One 36 pin connector A1005JD is installed in the instrument 5 The MTR and AUX options cannot be installed on the same instrument No Instrument number When contacting the dealer from which you purchased the instrument please tell them the instrument number IM WT1801 03EN Checking the Package Contents Accessories The instrument is shipped with the following accessories Make sure that all accessories are present and undamaged Power cord one of the following power cords is supplied according to the instrument s suffix codes ze UL CSA standard VDE standard BS standard AS standard GB standard A1006WD A1009WD A1054WD A1024WD A1064WD N D N F N Q N R N H Current input Rubber stoppers Safety terminal adapter set protection cover A9088ZM 758931 B8211BX S 2 N SG SD Printer roll paper 36 pin connector One set of manuals B9316FX A1005JD A CEA Su 1 Same number of sets as the number of installed input elements WT1801 One set with one hexagonal socket wrench WT1802 Two sets with one hexagonal socket wrench WT1803 Three sets with one hexagonal socket wrench WT1804 Four sets with one hexagonal socket wrench WT1805 Five sets with one hexagonal socket wrench WT1806 Six sets w
36. level 500 ns or more Applies to the master Input logic Negative logic falling edge Applies to slaves Minimum pulse width Low level 500 ns or more Applies to slaves Measurement start delay Within 15 sample intervals Applies to the master Within 1 us 15 sample intervals Applies to slaves Note The measurement of the master and slave units cannot be synchronized under the following conditions When the data update interval differs between the master and slave nreal time integration mode or real time storage mode Follow the procedure below to hold values during synchronized measurement To hold values Hold the values on the master first To stop holding values Stop holding values on the slaves first To Apply a External Synchronization Signal during High Speed Data Capturing Apply a external synchronization signal that meets the following specifications to the external start signal I O connector MEAS START on the rear panel Item Specifications Connector type BNC connector Input level TTL 0 to 5 V Input logic Negative logic falling edge Minimum pulse width Low level 500 ns or more Measurement start delay Within 1 us 15 sample intervals IM WT1801 03EN 4 4 External Start Signal I O MEAS START External Start Signal Output Circuit and Timing Chart 5V 5V i 10 KQ z A 1000 Start output signal DMK A V V V Measurement start delay I Measurement s
37. menu for setting the display format of the external current sensor range IM WT1801 03EN 1 2 Keys CQ VOLTAGE RANGE CURRENT RANGE O SENSOR RATIO OO HET kV LLLLLEL mA EXT SENSOR DIRECT MEASURE 9 gt c E e SCALING Key Press this key to display a menu for setting the VT and CT ratios or the power coefficient for each input element These ratios and the coefficient are used to convert the VT CT output or the power derived from measuring the VT and CT outputs to the real voltage current and power of the item under measurement LINE FILTER Key Press this key to display a menu for setting the filters to apply to the circuit under measurement for each input element SHIFT LINE FILTER FREQ FILTER Key Combination Press this key combination to display a menu for setting the filters to apply to the circuit under frequency measurement for each input element AVG Key Press this key to display a menu for configuring the measured value averaging feature SYNC SOURCE Key Press this key to display a menu for setting the synchronization source for each wiring unit The synchronization source defines the period measurement period over which sampled data which is used to produce numeric data measured values such as voltage current and power is acquired SCALING uwrue ws PUER sive source IM WT1801 03EN 1 5 s
38. move the digit cursor between digits point to the left or right of the value you want to set so that the pointer becomes a ora and then click this area The digit cursor will move one digit to the left or right each time you click U1 Position Ca Click within this area to select the item that you want to set with C und J the cursor keys Change the value by clicking and using the mouse wheel IM WT1801 03EN 3 3 Using USB Keyboards and Mouse Devices Selecting Check Boxes in Dialog Boxes Click the item that you want to select A check mark appears next to the item that you selected To clear an item s check box click it again Element Object ES mm Click the item that you want to select a lement 2 amp Element 5 amp Element 3 amp Element 6 All ON All OFF Note To close a dialog box click outside of it Selecting a File Folder or Media Drive from the File List Window Click on a file folder or media drive to select it Rotate the mouse wheel to scroll through the file list To cancel your selection click outside of the File List window The File List window will close when you cancel your selection File List Path USB 0 Data Space 468MB 490 332 160Bytes Num Of Files 12 ono File Name Size Date Attr mo 9 Ramo B E amp 3 Network Filter x amp USB 0 prope esci amp Data
39. of ics is ahead of the voltage by 90 the effect of ics on the measurement accuracy increases as the power factor gets smaller ics Vcs x 2rf x cs xipueddy H LOAD Because the WT1800 measures high frequencies the effects of ics cannot be ignored If you connect the WT1800 current input terminal to the side of the power supply SOURCE that is close to its earth potential the WT1800 current measurement circuit positive and negative terminals are close to the earth potential so Vcs becomes approximately zero and very little ics flows This reduces the effect on measurement accuracy IM WT1801 03EN App 21 Appendix 4 Power Range The table below shows actual voltage and current range combinations and the power ranges that result from them The values are for when the voltage and current ranges of each element are the same The table shows the active power range unit W The same ranges are set for apparent power unit VA and reactive power unit var Just read the unit as VA or var The number of displayed digits display resolution is as follows e lf the value is less than or equal to 60000 Five digits If the value is greater than 60000 Four digits When the Crest Factor Is Set to CF3 Active Power Range of Each Element Current Voltage Range V A 15000 830000 0000 10 000 15000 30 000 100 00m 150 00 mW 300 00 mW 600 00 mW 1 0000 W 1 5000 W 3 0000 W
40. of power factor A 4 A A 1 0002 cos cos sin 1 influence from the power factor when A 0 100 1 digit The voltage and current must be within their rated ranges Accuracy of phase angle cos 1 A 1 0002 sin 1 influence from the power factor when A 0 100 deg 1 digit The voltage and current must be within their rated ranges Accuracy at 1 year 1 5 times the reading errors for the accuracy at 6 months IM WT1801 03EN 6 9 suoneoyioods Hu 6 5 Features Measurement Features and Measurement Conditions Item Specifications Crest factor 300 for the minimum effective input 3 or 6 for the measurement range s rated direct input Measurement period Period used to determine and compute measurement functions Except for watt hours Wp and DC ampere hours q the measurement period is set using the zero crossing points of the reference signal synchronization source When displaying harmonics The measurement period is the first 1024 or 8192 points from the beginning of the data update interval at the harmonic sampling frequency Wiring system 1 1P2W single phase two wire 2 1P3W single phase three wire 3 3P3W three phase three wire 4 3P4W three phase four wire and 5 3P3W 3V3A three phase three wire system that uses a three voltage three current method The selectable wiring systems vary depending on the number of i
41. or Japanese version of Windows 7 32 bit Windows Vista 32 bit or Windows XP 32 bit SP2 or later IM WT1801 03EN 6 19 suoneoyioods Hu 6 17 USB for Peripherals Item Specifications Number of ports 2 Connector type USB type A receptacle Electrical and mechanical Complies with USB Rev 2 0 specifications Supported transfer modes HS High Speed 480 Mbps FS Full Speed 12 Mbps LS Low Speed 1 5 Mbps Compatible devices Mass storage devices that comply with USB Mass Storage Class Ver 1 1 104 or 109 keyboards that comply with USB HID Class Ver 1 1 Mouse devices that comply with USB HID Class Ver 1 1 Power supply 5 V 500 mA for each port You cannot connect devices whose maximum current consumptions exceed 100 mA to two different ports on the WT1800 at the same time 6 18 Built in Printer Option Item Specifications Print system Thermal line dot system Dot density 8 dots mm Sheet width 80 mm Valid recording width 72mm Auto print Set the interval at which you want to print measured values automatically You can set the start and stop times 6 19 Safety Terminal Adapter Item Specifications Maximum allowable current 36A Dielectric strength 1000 V CATIII Contact resistance 10 mO or less Contact section Nickel plating on brass or bronze Insulator Polyamide Core wire Maximum diameter 1 8 mm Insulation Maximum diameter 3 9
42. order k when R L and C are connected in parallel Xp k reactance of the load circuit in relation to harmonic order k when R L and C are connected in parallel Harmonic distortion factor 96 Uhdf k ratio of harmonic voltage U k to U 1 or U Ihdf k ratio of harmonic current I k to I 1 or I Phdf k ratio of harmonic active power P k to P 1 or P Total harmonic distortion 96 Uthd ratio of the total harmonic voltage to U 1 or U Ithd ratio of the total harmonic current to I 1 or I Pthd ratio of the total harmonic active power to P 1 or P Telephone harmonic factor Uthf voltage telephone harmonic factor Ithf current telephone harmonic factor applicable standard IEC34 1 1996 Telephone influence factor Utif voltage telephone influence factor Itif current telephone influence factor applicable standard IEEE Std 100 1996 Harmonic voltage factor hvf harmonic voltage factor Harmonic current factor hcf harmonic current factor K factor Ratio of the sum of squares whose harmonic components are weighted to the sum of squares of the electric current harmonics 1 Harmonic order k is an integer from 0 to the upper limit of harmonic analysis The Oth order is the DC component The upper limit is determined automatically according to the PLL source frequency It can go up to the 500th harmonic order 2 The total value is determined according to the equation on page App 4 from the fundamental wave 1
43. sensors follow the guidelines below when connecting the external current sensor cable Connect the shielded wire of the external current sensor cable to the L side of the shunt output terminal OUT IM WT1801 03EN 2 17 sjueuiaJnseo y 104 suoneuedaag Burjelw 2 10 Wiring the Circuit under Measurement When Using Current Sensors Minimize the area of the space between the wires connecting the current sensor to the external current sensor cable This reduces the effects of the lines of magnetic force which are caused by the measurement current and the external noise that enter the space Shunt type current sensor Space between the connection wires i Connect the shunt type current sensor to the power earth ground as shown in the figure below If you OUT H External current sensor cable B9284LK sold separately c7 WT1800 I D Shielded wire OUT L have to connect the sensor to the non earth side use a wire that is thicker than AWG18 with a conductive cross sectional area of approximately 1 mm between the sensor and the instrument to reduce the effects of common mode voltage Take safety and error reduction into consideration when constructing external current sensor cables WT1800 U i e O Voltage input terminal LOAD External current sensor input connector e a Shunt type current sensor When the circuit under measurement is not grou
44. the crest factor is 6 20 Hz to 1 kHz for 1 Aand 2A ranges of 50 A elements The conditions in which frequency filters are turned on are the same as those for frequency measurements FFT data length 1024 when the data update rate is 50 ms 100 ms or 200 ms 8192 when the data update rate is 500 ms 1 s 2 s 5s 10 s or 20 s Window function Rectangular Anti aliasing filter Set using the line filter Sample rates window widths and upper limits of harmonic analysis Number of FFT points 1024 when the data update rate is 50 ms 100 ms or 200 ms Upper Limit of Harmonic Analysis Fundamental Window Other Measured Frequency Sample Rate Width U I P 6 OU QI Values 15 Hz to 600 Hz f x 1024 1 500 100 600 Hzto1200Hz fx 512 2 255 100 1200 Hz to 2600 Hz fx 256 4 100 100 Number of FFT points 8192 when the data update rate is 500 ms 1s 2 s 5 s 10 s or 20 s Upper Limit of Harmonic Analysis Fundamental Window Other Measured Frequency Sample Rate Width U I P 6 OU OI Values 0 5 Hz to 1 5 Hz fx 8192 1 500 100 1 5 Hz to 5 Hz fx 4096 2 500 100 5 Hz to 10 Hz fx 2048 4 500 100 10 Hz to 600 Hz fx 1024 8 500 100 600 Hz to 1200Hz fx 512 16 255 100 1200 Hz to 2600 Hz fx 256 32 100 100 However when the data update rate is 50 ms the maximum harmonic order that can be measured is 100 6 12 IM WT1801 03EN 6 6 Harmonic Measurement Option
45. the voltage leads the power Q computation current Temperature coefficient Add 0 03 of reading C within the range of 5 C to 18 C or 28 C to 40 C Effective input range Udc Idc 0 to 110 of the measurement range Urms Irms 1 to 110 of the measurement range Umn Imn 10 to 110 of the measurement range Urmn Irmn 1096 to 11096 of the measurement range Power DC measurement 0 to 110 AC measurement 1 to 110 of the voltage and current ranges up to 110 of the power range However the synchronization source level must meet the frequency measurement input signal level When the crest factor is set to 6 the lower limits are multiplied by 2 Maximum display 140 of the rated voltage or current range Minimum display Depending on the measurement range the following are the minimum values that are displayed Urms Uac Irms and lac 0 3 0 6 when the crest factor is set to 6 Umn Urmn Imn and Irmn 2 4 when the crest factor is set to 6 Any values less than these lower limits are displayed as zero The integrated current q is dependent on the current value Lower limit of measurement Data update rate 50 ms 100 ms 200ms 500ms 1s 2s 5s 10s 20s frequency Lower limit of 45Hz 25Hz 125Hz 5Hz 2 5Hz 1 25 Hz 0 5 Hz 0 2 Hz 0 1 Hz measurement frequency Accuracy of apparent power S Voltage accuracy current accuracy Accuracy of reactive power Q_ Accuracy of apparent power v 1 0004 A2 N 1 M x 100 of range Accuracy
46. worn out Servicing is required Unable to recognize a storage medium Check the storage medium format If necessary format the storage medium The storage medium may be damaged Unable to save data to the selected storage medium If necessary format the storage medium Check the free space on the storage medium Remove files or use a different storage medium as necessary Unable to configure or control the instrument through the communication interface Confirm that the GP IB address and the IP address settings meet the specifications Confirm that the interface meets the electrical and mechanical specifications 1 See the user s manual IM WT1801 02EN 2 See the communication interface user s manual IM WT1801 17EN IM WT1801 03EN 5 1 uonoedsu pue aoueuajuleW 5unoouse qnouj BH 5 2 Power Supply Fuse Because the power supply fuse used by this instrument is inside the case you cannot replace it yourself If you believe that the power supply fuse inside the case has blown contact your nearest YOKOGAWA dealer IM WT1801 03EN 5 3 Recommended Replacement Parts The warranty applies only to the main unit of the instrument the warranty period begins the day that the instrument is delivered and does not cover any other items or expendable items items that wear out The replacement period for expendable items varies depending on the conditions of use Refer to the table b
47. xipueddy E Appendix 2 Power Basics Power harmonics and AC RLC circuits Active Power and the Power Factor In alternating electrical current not all of the power calculated by the product of voltage and current UI is consumed The product of U and is called the apparent power It is expressed as S The unit of apparent power is the volt ampere VA The apparent power is used to express the electrical capacity of a device that runs on AC electricity The true power that a device consumes is called active power or effective power It is expressed as P This power corresponds to the AC power discussed in the previous section S UI VA P Ulcos W cosQ is called the power factor and is expressed as A It indicates the portion of the apparent power that becomes true power Reactive Power If current lags voltage U by current can be broken down into a component in the same direction as voltage U Icos and a perpendicular component Isin Active power P which is equal to Ulcos is the product of voltage U and the current component Icos The product of voltage U and the current component Isin is called the reactive power It is expressed as Q The unit of reactive power is the var Q Ulsin var gt C The relationship between S the apparent power P the active power and Q the reactive power is as follows S P Q2 App 16 IM WT1801 03EN Appendix 2 Power Basics Power harmonics a
48. you press ESC when a setup menu or available options are displayed the screen returns to the menu level above the current one If you press ESC when the highest level menu is displayed the setup menu disappears suonejedo uouiulo B IM WT1801 03EN 3 1 3 1 Key Operation and Functions RESET Key Operation If you press RESET when you are using the cursor keys to set a value or select an item the setting is reset to its default value depending on the operating state of the WT1800 the setting may not be reset SET Key Operation The operation varies as indicated below depending on what you are setting Fora soft key menu that has two values that you use the cursor keys to adjust Press SET to switch the value that the cursor keys adjust Fora menu that has the cursor keys SET mark Q6 displayed on it Press SET to confirm the selected item Cursor Keys Operations The operation varies as indicated below depending on what you are setting When setting a value Up and down cursor keys Increases and decreases the value Left and right cursor keys Changes which digit to set When selecting the item to set Up and down cursor keys Moves the cursor between settings How to Enter Values in Setup Dialog Boxes 1 Use the keys to display the appropriate setup dialog box 2 Usethe cursor keys to move the cursor to the item that you want to set 3 Press SET The operation varies as indicated below depending o
49. 0 RH to 7596 RH Input waveform Sine wave A power factor 1 Common mode voltage 0 V Crest factor 3 Line filter Off Frequency filter Set to 1 kHz After the warm up time has elapsed Wired condition after zero level compensation or measurement range change The unit of f in the accuracy equations is kHz Voltage Frequency Accuracy reading error measurement range error DC 0 05 of reading 0 1 of range 0 1 Hz lt f lt 10 Hz 10 Hz lt f lt 45 Hz 0 1 of reading 0 2 of range 0 1 of reading 0 1 of range 45 Hz lt f lt 66 Hz 0 1 of reading 0 05 of range 66 Hz lt f lt 1 kHz 0 1 of reading 0 1 of range 1 kHz fs 50 kHz 0 3 of reading 0 1 of range 50 kHz lt f lt 100 kHz 0 6 of reading 0 2 of range 100 kHz lt f lt 500 kHz 0 006 x f of reading 0 5 of range 500 kHz f lt 1 MHz 0 022 x f 8 of reading 1 of range Frequency bandwidth 5 MHz 3 dB typical Current Frequency Accuracy reading error measurement range error DC 0 05 of reading 0 1 of range 0 1 Hz lt f lt 10 Hz 0 1 of reading 0 2 of range 10 Hz lt f lt 45 Hz 0 1 of reading 0 1 of range 45 Hz lt f lt 66 Hz 0 1 of reading 0 05 of range 66 Hz f lt 1 kHz 0 1 of reading 0 1 of range Direct input of a 50 A input element 0 2 of readin
50. 0 ns or more Applies to the master Input logic Negative logic falling edge Applies to slaves Minimum pulse width Low level 500 ns or more Applies to slaves Measurement start delay Within 15 sample intervals Applies to the master Within 1 us 15 sample intervals Applies to slaves To Apply the External Synchronization Signal during High Speed Data Capturing Item Specifications Connector type BNC connector Input level TTL Input logic Negative logic falling edge Minimum pulse width Low level 500 ns or more Measurement start delay Within 1 us 15 sample intervals External Clock Input Section Common Item Specifications Connector type BNC connector Input level TTL To Apply the Synchronization Source during Normal Measurement as Ext Clk Item Specifications Frequency range Same as the measurement ranges listed under Frequency Measurement Input waveform 50 duty ratio rectangular wave To Apply the PLL Source during Harmonic Measurement as Ext Clk Item Specifications Frequency range Harmonic measurement option G5 or G6 0 5 Hz to 2 6 kHz Input waveform 50 duty ratio rectangular wave To Apply Triggers Item Specifications Minimum pulse width 1 us Trigger delay Within 1 us 15 sample intervals RGB Output Section Option Item Specifications Connector type D sub 15 pin receptacle Output format Analog RGB output 6 18
51. 0mW 07500W 12800W 18750W 37500W 2 5000 1 8750W 37500W 7 500W 12500W 18750W 37500W 25000 18750W 37500W 7500W 12500W 18750W 37500W Current Voltage Range V Range A 30000 50000 75 00 150 00 300 00 500 00 25 000m 0 7500W 1 2500W 1 8750W 3 7500W 7 500W 12500W 25000m 7 500W 12500W 18 750W 37 500W 7500W 125 00W 2 5000 7500W 12500W 18750W 37500W 07500KW 1 2500kW 25 000 0 7500kKW 1 2500KW 1 8750kw 3 7500KW 7 500 kW 12 500 kW Active Power Range of a Wiring Unit with a 1P3W or 3P3W System or a 3P3W System That Uses a 3V3A Method Current Voltage Range V Range A 07500 15000 3 0000 5 0000 7 500 15 000 25 000m 37 500mW 75 000mW 150 00mW 250 00mW 375 00mW 750 00mW 250 00m 375 00mW 75000mW 1 5000W 2 5000W 37500W 7 5000W 2 5000 37500W 7 5000W 15 000W 25 000W 37500W 75 000W 25 000 37 500W 75000W 18000W 25000W 37500W 750 00W App 24 IM WT1801 03EN Appendix 4 Power Range Current Voltage Range V Tempe LLL OO OOOO S O 5 0000m 300 00 mW 500 00 mW 750 00 mW 1 5000 W 3 0000 W 5 0000 W 25000m 1 5000W 2 5000W 37500W 7 5000W 15 000 w 25 000W 250 00m 15 000W 25 000W 37500W 75 000W 15000W 250 00W 2 50000 15000W 25000W 3
52. 15 A xilary V O Ie 6 18 6 16 Computer InterfaCe cien te i ei dto desi eee 6 19 6 17 USBforPeripherals etiem eter ct erbe nrbe ine ers eee besote tenus rues 6 20 6 168 Built in Printer Option iiic ite cnr cec orte eee 6 20 6 19 Safety Terminal Adapter risian nnne enan panana ian eia 6 20 6 20 General Specifications echte treten aa EH Ea Eana sas ESNS 6 21 6 21 External DIMENSIONS cuenca reete aaia X aaan aN 6 22 Appendix 1 Symbols and Determination of Measurement Functions ssssse App 1 Appendix 2 Power Basics Power harmonics and AC RLC circuits App 12 Appendix 3 How to Make Accurate Measurements sssseeem ee App 20 Appendbc4 Power Rage nnii enne roit saine ene exito cipe ene Eae cnin Ede en epa ara ERE neq eee App 22 Appendix 5 Setting the Measurement Period sssse e App 26 Appendix 6 User Defined Function Operands see App 32 Appendix 7 USB Keyboard Key Assignments ssseee eme App 37 Appendix8 List of Initial Settings and Numeric Data Display Order App 41 Appendix 9 Limitations on Modifying Settings and Operations sseeeessss App 50 Appendix 10 Limitations on the Features during High Speed Data Capturing App 52 Appendix 11 Block Diagram trt rrr nent er tte RU ER eria en dh ne EEn ERE App 54
53. 199 0 3 24 5 465 l ca Q eo e oo eo coo eoo opo o0o ooo BAA agojogjogoji aaoiopocdojio caaumaimeele 7 1 40 3 28 9 37 7 Rack mounting surface Rack mounting surface Unit mm Unless otherwise specified tolerances are 3 however tolerances are 0 3 mm when below 10 mm 6 22 IM WT1801 03EN Appendix Appendix 1 Symbols and Determination of Measurement Functions Measurement Functions Used in Normal Measurement Table 1 3 Methods of Computation and Determination Measurement Function For information about the symbols in the equations see the notes at the end of page App 3 True rms value Urms Urms Umn Udc Urmn Uac Voltage Rectified mean value U M calibrated to the rms value Umn Simple average Udc nue eue2nc2 Rectified mean value Urmn AVG u n 2 42 AVG u n li AVG u n AVG u n RMS DC AC component Uac True rms value Irms Irms Imn Idc Irmn lac Current Rectified mean value u calibrated to the rms value Imn TT I A simple average Idc aveti n zyz ell i n AVG i n AVG i n JA RMS2 DC2 Rectified mean value Irmn 2N2 AC component lac Active power P W AVG u n i n Apparent power S VA TYPE1 TYPE2 Select from Urm
54. 2 and power P of that wiring unit are not measured and are displayed as no data 4 When the NULL feature is enabled and this setting or operation would cause a current input switch between direct input and external current sensor input this setting or operation is unavailable Perform this setting or operation in the normal measurement mode 5 When the NULL feature is enabled you cannot switch between direct input and external current sensor input using the current input setting Perform this setting in the normal measurement mode 6 The line filter is always on The line filter setting range is different than the setting range for normal measurement The line filter setting for high speed data capturing is not the same as the line filter setting for normal measurement The WT1800 saves both settings 7 When the NULL feature is enabled you cannot change the motor input signal type Perform this setting in the normal measurement mode 8 You cannot select Auto When the sampling frequency has been set to Auto for normal measurement and you switch to high speed data capturing the WT1800 operates under the Clock C setting 9 You can print a screen image You cannot print numeric data lists 10 During high speed data capturing the setting for the NULL feature remains the same as the setting specified during normal measurement ON or OFF You cannot change the setting for the NULL feature Perform this setting in the normal measu
55. 20 25 30 35 40 45 50 Measured current A 0 Measured voltage V When the Measured Current Is Relatively Small Connect the current measurement circuit between the voltage measurement circuit and the load In this case the voltage measurement circuit measures the sum of e and ei ei is the load voltage and ej is the voltage drop across the current measurement circuit Only ei reduces measurement accuracy The input resistance of the current measurement circuit of the WT1800 is approximately 100 mQ for the 5 A input terminals and approximately 2 mQ for the 50 A input terminals If the load resistance is 1 kQ the effect of e on the measurement accuracy is approximately 0 01 100 mO 1 kQ for the 5A input terminals and approximately 0 000296 2 mQ 1 kQ for the 50 A input terminals SOURCE UR LOAD SOURCE v LOAD C gt Q S i LER NE NP d c gi WT1800 App 20 IM WT1801 03EN Appendix 3 How to Make Accurate Measurements Effects of Stray Capacitance The effects of stray capacitance on measurement accuracy can be minimized by connecting the WT1800 current input terminal to the side of the power supply SOURCE that is closest to its earth potential The internal structure of the WT1800 is explained below The voltage and current measurement circuits are each enclosed in shielded cases These shielded cases are contained within an
56. 6 kHz are reference values Add the following values when a voltage range is being used Voltage accuracy 25 mV Power accuracy 25 mV rated voltage range x 100 of range Add the following values when direct current input is being used 5 A elements Current accuracy 50 pA Power accuracy 50 pA rated current range x 100 of range 50 A elements Current accuracy 4 mA Power accuracy 4 mA rated current range x 100 of range Add the following values when an external current sensor range is being used Current accuracy 2 mV Power accuracy 2 mV rated external current sensor range x 10096 of range Add n 500 of reading to the n component of the voltage and current Add n 250 of reading to the n component of the power The accuracy when the crest factor is 6 is the same as the accuracy when the crest factor is 3 after doubling the measurement range The guaranteed accuracy ranges for frequency voltage and current are the same as the guaranteed ranges for normal measurement The neighboring harmonic orders may be affected by the side lobes from the input harmonic order When the frequency of the PLL source is 2 Hz or greater for n order component input add n m 1 50 of the n order reading to the n m order and n m order of the voltage and current and add n m 1 25 of the nt order reading to the n m order and n m order of the power When the frequency of the PLL source is less th
57. 7500W 75000W 15000KW __ 2 5000 kW 25 000 1 5000kW 2 5000KW 37500KW 7 5000KW 15 000KW 25 000kW Active Power Range of a Wiring Unit with a 3P4W Wiring System Current Voltage Range V 15 000 25 000m 56 250mW 112 500mW 225 00 mW 375 00mW 56250mW 1125 00mW 500 00m 1125 00 mW 2 2500 W 4 5000 W 7 5000 W 11 2500 W 22 500 W 2 5000 5 6250W 112500W 22500W 37500W 56250W 112500W 25 000 56250W 112500W 22500W 37500W 56250W 112500W Current Voltage Range V Range A 30000 50000 75 00 150 00 300 00 500 00 25 000m 22500W 3 7500W 5 6250W 11 2500W 22500W 37 500W 250 00m 22500W 37500W 56 250W 112500W 22500W 375 00 w 2 5000 225 00W 37500W 56250W 1125 00W 22500KW 3 7500kW 25 000 2 2500kW 37500KW 5 6250KW 11 2500 kw 22500KW 37 500KW IM WT1801 03EN App 25 xipueddy E Appendix 5 Setting the Measurement Period To make correct measurements on the WT1800 you must set its measurement period properly The WT1800 uses its frequency measurement circuit see appendix 11 to detect the period of the input signal that is selected using the measurement period setting The measurement period is an integer multiple of this detected period The WT1800 determines the measured values by averaging the data sampled in the measurement period The input signal used to determine the measure
58. 801 O3EN This manual This guide explains the handling Getting Started Guide precautions and basic operations of the WT1800 WT1800 Precision Power Analyzer IM WT1801 17EN The supplied CD contains the PDF file of this manual Communication Interface User s This manual explains the WT1800 communication Manual interface features and how to use them Notes 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 YOKOGAWA 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 Trademarks 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 I
59. A _ Line filter O Zero crossing Isolator for peripheral detection evices Peak detection Motor LLLA GP4B DSP e 0 0 9 A D H r O Ethernet inenler Zero crossing detection Peak Li detection Isolator gt Zero crossing detection Zero crossing detection External signal AUX input circuit option AUX1 gt e Line filter 0 O AID Isolator Peak detection AUX DSP t O AUX2 gt e D O AID H Line filter O Isolator Peak detection Input Signal Flow and Process Input elements 1 through 6 consist of a voltage input circuit and a current input circuit The input circuits are mutually isolated They are also isolated from the case The voltage signal that is applied to the voltage input terminal U is normalized using the voltage divider and the operational amplifier op amp of the voltage input circuit It is then sent to a voltage A D converter The current input circuit is equipped with two types of input terminals a current input terminal I and an external current sensor input connector EXT Only one can be used at any given time The voltage signal from the current sensor that is received at the external current sensor input connector is normalized using the voltage divider and the operational amplifier op amp It is then sent t
60. Control Item Specifications Signal EXT START EXT STOP EXT RESET INTEG BUSY EXT HOLD EXT SINGLE EXT PRINT Input level OVto5V IM WT1801 03EN 6 15 suoneoyi2ods Hu 6 10 High Speed Data Capturing Option Item Specifications Data capturing interval 5 ms when External Sync is set to OFF 1 ms to 100 ms when External Sync is set to ON synchronized with the external signal applied to the MEAS START terminal Display update interval 1 s the last data acquired in a 1 s interval is displayed Measurement functions Voltage current and power all elements 2 Select rms mean dc or r mean Torque speed and motor output option or AUX1 and AUX2 option Wiring systems 1P2W single phase two wire system DC signal 3PAW three phase four wire system e 3P3W 3V3A three phase three wire system Line filter Peak over Status Always on Cutoff frequency 100 Hz to 100 kHz in steps of 100 Hz or 300 kHz The indicator lights if a peak over range occurs even once from start to stop Data output destination Storage medium Internal RAM disk or USB memory Communication interface GP IB Ethernet or USB PC Interface The captured data for each second is output together Data capture start Data capturing starts after Start in the HS Settings menu is pressed or the WT1800 receives a communication command and the trigger conditions are met HS
61. D U U SOURCE U1 LOAD SOURCE LOAD Wiring Example of a Single Phase Three Wire System 1P3W If six input elements are available three single phase three wire systems can be wired SOURCE LOAD N G7 Input element 1 Input element 2 U1 and 11 U2 and 12 IM WT1801 03EN 2 15 sjueuiaJnseo y 104 suoneuedaag Burjelw B 2 9 Wiring the Circuit under Measurement for Direct Input Wiring Example of a Three Phase Three Wire System 3P3W If six input elements are available three three phase three wire systems can be wired INE LOAD n 1 p SOURCE E Wy B v9 LOAD Input element 1 Input element 2 U1 and 11 U2 and 12 Wiring Example of a Three Phase Three Wire System That Uses a Three Voltage Three Current Method 3P3W 3V3A If six input elements are available two three phase three wire systems that use a three voltage three current method can be wired R SOURCE LOAD t IME R VA SOURCE U IILOAD reel 10 FOL O Wiring Example of a Three Phase Four Wire System 3P4W If six input elements are available two three phase four wire systems can be wired Input element 1 Input element 2 Input element 3 U1 and 11 U2 and 12 U3 and 13 g SOURCE LOAD l 1 t gt R
62. E Load Setup IM WT1801 03EN App 47 Appendix 8 List of Initial Settings and Numeric Data Display Order Numeric Data Display Order Example for a Model with Six Input Elements Installed If you reset the order of the numeric data using the Element Origin setting the data of each measurement function is displayed in the order indicated in the table below 4 Items Display 1 2 3 4 5 6 7 8 9 10 11 12 Urms1 Urms2 Urms3 Urms4 Urms5 Urms6 Urms2A Urms2B WP1 WP5 n1 Speed Irms1 Irms2 Irms3 Irms4 Irms5 Irms6 IrmszA Irms2B WP2 WP6 n2 Torque P1 P2 P3 P4 P5 P6 PZA P2B WP3 WP2A n3 Slip M A2 A3 M A5 6 AXA AZB WP4 WP2B n4 Pm 8 Items Display 1 2 3 9 10 11 12 Urms1 Urms2 Urms3 Urms2A Urms2B WP1 WP5 P1 Speed Irms1 Irms2 Irms3 IrmsxA Irms2B q1 q5 P2 Torque P1 P2 P3 PZA PZB WP2 WP6 P3 SyncSp S1 S2 S3 SZA S2B q2 q6 P4 Slip Q1 Q2 Q3 QzA Q2B WP3 WPXA n1 Pm M A2 A3 AZA AZB q3 qXA n2 01 2 o3 PZA QZB WP4 WP2B n3 fU1 fU2 fU3 fU4 fU5 fU6 q4 qzB n4 16 Items Display Page 1 2 3 4 5 6 7 8 9 10 11 12 Urms1 Urms2 Urms3 Urms4 Urms5 Urms6 Urms2A P1 P5 P1 F1 Speed Irms1 Irms2 Irms3 Irms4 Irms5 Irms6 IrmszA WP1 WP5 P2 F2 Torque P1 P2 P3 P4 P5 P6 P2A Irms1 Irms5 P3 F3 Syn
63. Element 5 Reset Items B Frequency E uH os All Items i Phase 2B uai Hrm List o Cutoff 180 Iread I ag Single Dual Display Frame Sync Measure C Exec Copy G Custom OFF 9j Slave A Press the soft key to use the cursor keys to configure this setting Use the cursor keys to set the value or select an item Arelated setup menu appears when you press the soft key The selected setting switches each time you press the soft key A dialog box or the keyboard appears when you press the soft key Use the cursor keys and the SET key to configure the settings E Press the soft key to display a selection menu Press the soft key that corresponds to the appropriate setting F Press the soft key to use the cursor keys to configure this setting After you configure the setting the status of the selected setting switches each time you press the soft key Press the soft key to execute the specified feature Press the soft key to apply the value assigned to the key OOo DW IO How to Display the Setup Menus That Are Written in Purple below the Keys In the explanations in this manual SHIFT key name written in purple is used to indicate the following operation 1 Press SHIFT The SHIFT key illuminates to indicate that the keys are shifted Now you can select the setup menus written in purple below the keys 2 Press the key that you want to display the setup menu of ESC Key Operation If
64. Execute PAGE UP Execute PAGE TOP Execute PAGE UP No feature is assigned to the key IM WT1801 03EN Appendix 7 USB Keyboard Key Assignments 109 Keyboard Japanese Key When the Ctrl Key Is Held Down on When the Soft Keyboard Is Displayed on the USB Keyboard the WT1800 When the WT1800 Shift on the When the WT1800 Shift Is On USB Keyboard Shift Is On AVG menu A Execute STORE START STORE SET menu SCALING menu MOTOR AUX SET menu Execute HOLD Execute ELEMENT Execute ELEMENT ALL FILE menu Same as left INTEG menu 5j j jo jajo jo jv HRM SET menu Execute IMAGE SAVE IMAGE SAVE menu J Q jajo o jv Execute NULL NULL SET menu Execute STORE STOP Execute STORE RESET x je LINE FILTER menu FREQ FILTER menu x je MEASURE menu FREQ MEASURE menu Execute NUMERIC OTHERS menu Execute PRINT PRINT menu FORM menu CURSOR menu a o o 3 3 Execute RESET Same as left a o o 5 3 SHIFT on SHIFT off ITEM menu UPDATE RATE menu WIRING menu Execute WAVE Execute EXT SENSOR SENSOR RATIO menu SYNC SOURCE menu Execute SINGLE Execute CAL IN X xS cil2Mlo no lvol zi sir xic r om mo o om xipueddy s t u v w x y z 1 2 3 4 5 6 7 8 9 O OIN MH al ARlwl N IN lt x
65. F4 Ev4 n4 AUX S k Z k Uthf OUi Uj Q Uac lac q F5 Ev5 Speed 4 Al Q k Rs k Ithf Ui Uk U pk I pk q F6 Ev6 Torque AP1 A k Xs k Utif OUi li o U pk l pk q F7 Ev7 SyncSp AP2 k Rp k Itif OUj lj fU CfU Cfl ws F8 Ev8 Slip AP3 U k Xp k hvf Uk Ik fl Pc WQ F9 Pm AP GI k hef P pk F10 Pi rn F12 F13 F14 F15 F16 F17 F18 F19 F20 Left Side of the Single List Screen and Dual List Screen Page 1 2 3 4 5 6 7 8 9 10 11 Urms1 Urms2 Urms3 Urms4 Urms5 Urms6 UrmszA UrmszB Urms2zC F1 F17 Irms6 IrmszA IrmszB IrmszC K factor1 K factor2 K factor3 K factor4 K factor6 ak WN Displayed on models with the delta computation option Displayed on models with the motor evaluation function option Displayed on models with the harmonic measurement option or the simultaneous dual harmonic measurement option On models with the auxiliary input option Aux1 is displayed instead of Speed and Aux2 is displayed instead of Torque Not displayed when the split display is in use IM WT1801 03EN App 49 xipueddy E Appendix 9 Limitations on Modifying Settings and Operations During integration storage and auto printing there are measurement conditions and computations whose settings you cannot change and features that you cannot execute Operation Changing settings or executing features Integration Statu
66. Hold the cover as indicated in the figure and push the cover up al D 5 Pull approximately 10 cm of the roll paper out and load the roll paper in the holder so that the thermal side of the paper is facing up Load the paper so that it passes through the guides Holde in Roll paper Load the roll paper into the holder so that l N the thermal side of the paper is facing up IM WT1801 03EN 2 25 sjueuiaJnseo y 104 suoneuedaag Huye N 2 12 Loading Roll Paper into the Built In Printer Option 6 Lower the cover while you push the stopper to the left to release the latch Hold the tray from underneath with both hands and close the cover until you hear a click Stopper Push the stopper to the left to release the latch Close the cover until you hear a click 7 Push the printer unit push the area to the left of the lever on the front panel back into the WT1800 until you hear a click Push the printer unit until you hear a click This completes the procedure for loading the roll paper 2 26 IM WT1801 03EN 2 12 Loading Roll Paper into the Built In Printer Option Feeding Paper Press SHIFT PRINT MENU to display the following menu Print Menu Format Auto Print N lt Auto Print Settings Fa Comment Paper Feed Feeds paper Each time that you press this soft key the WT1800 feeds approximately 3 cm of the roll paper Cutting R
67. Hz 0 1 of reading 0 05 of range 66 Hz lt f lt 1 kHz 0 2 of reading 0 1 of range 1 kHz lt f lt 50 kHz 0 3 of reading 0 2 of range 50 mV 100 mV or 200 mV range of an external current sensor s input 0 5 of reading 0 2 of range Direct input of a 50 A input element 0 1 x f 0 2 of reading 0 2 of range 50 kHz lt f lt 100 kHz 0 7 of reading 0 3 of range Direct input of a 50 A input element 0 3 x f 9 5 of reading 0 3 of range 100 kHz f x 200 kHz 0 0105 x f 0 25 of reading 1 of range Direct input of a 50 A input element 0 09 x f 11 of reading 1 of range 200 kHz lt f lt 500 kHz 0 0105 x f 0 25 of reading 1 of range Direct input of a 50 A input element Accuracy is not defined 500 kHz f lt 1 MHz 0 048 x f 20 of reading 2 of range Direct input of a 50 A input element Accuracy is not defined Forthe external current sensor range add the following values to the accuracies listed above DC current accuracy 50 pV DC power accuracy 50 uV rated value of the external current sensor range x 100 of range Forthe direct current input range add the following values to the accuracies listed above 50 A input elements DC current accuracy 1 mA DC power accuracy 1 mA rated value of the direct current input range x 10096 of range 5 A input elements DC current accuracy 10 pA DC power accuracy 10 pA rated value o
68. IM WT1801 03EN 6 16 Computer Interface GP IB Interface Item Specifications Usable devices National Instruments Corporation PCI GPIB or PCI GPIB PCle GPIB or PCle GPIB PCMCIA GPIB or PCMCIA GPIB GPIB USB HS Use driver NI 488 2M Ver 1 60 or later Electrical and mechanical specifications Complies with IEEE St d 488 1978 JIS C 1901 1987 Functional specifications SH1 AH1 T6 L4 SR1 RL1 PPO DC1 DT1 and CO Protocol Complies with IEEE St d 488 2 1992 Code ISO ASCII Mode Addressable mode Address 0 to 30 Clearing remote mode Press LOCAL to clear remote mode except during Local Lockout Ethernet Interface Item Specifications Ports 1 Connector type RJ 45 connector Electrical and mechanical Complies with IEEE802 3 specifications Transmission system Ethernet 1000Base T 100BASE TX 10BASE T Communication protocol TCP IP Supported services FTP server DHCP DNS remote control VXI 11 SNTP and FTP client USB PC Interface Item Specifications Number of ports 1 Connector Type B connector receptacle Electrical and mechanical Complies with USB Rev 2 0 specifications Supported transfer modes HS High Speed 480 Mbps and FS Full Speed 12 Mbps Supported protocols USBTMC USB488 USB Test and Measurement Class Ver 1 0 PC system requirements APC with a USB port running the English
69. Input Terminal The terminals are safety banana jacks female that are 4 mm in diameter Only insert a safety terminal whose conductive parts are not exposed into a voltage input terminal If you are using the included 758931 Safety Terminal Adapter see section 2 6 Current Input Terminal When the voltage of the circuit under measurement is being applied to the current input terminals do not touch the external current sensor input terminals Doing so is dangerous because the terminals are electrically connected inside the instrument When connecting a measurement cable from an external current sensor to an external current sensor input connector remove the cables connected to the current input terminals Also when the voltage of the circuit under measurement is being applied to the external current sensor input terminals do not touch the current input terminals Doing so is dangerous because the terminals are electrically connected inside the instrument The screws used on the terminal binding post are M6 screws Wind the wire around the screw use the Fork Terminal Adapter 758921 sold separately or pass the crimping terminal through the Screw axis and then tighten firmly with the terminal knob Forthe dimensions of the terminal parts see section 2 9 Forthe precautions to follow when you connect the current input terminal and the crimping terminal and after you connect these terminals see section 2 9 General VT and CT Ha
70. K E1 2 IDC E1 100 Function5 Off D UrmsR V DELTAU1RMS E7 Function6 Off D UrmsS V DELTAU2RMS E7 Function7 Off D UrmsT V DELTAUSRMS E7 Function8 Off D UmnR V DELTAU1MN E7 Function9 Off D UmnS V DELTAU2MN E7 Function10 Off D UmnT V DELTAU3MN E7 Function11 Off PhiU3 U2 deg 360 PHIU1U3 E7 PHIU1U2 E7 Function12 Off Phil1 I2 deg PHIU1I2 E7 PHIU111 E7 Function13 Off Phil2 I3 deg PHIUSIS E7 PHIU2I2Z E7 F 11 Function14 Off Phil3 I1 deg 360 PHIU313 E7 PHIU111 E7 360 PHIU1U3 E7 Function15 Off Pp p Ww PPPK E1 PMPK E1 Function16 Off F16 V DELTAU1RMN E7 Function17 Off F17 V DELTAU2RMN E7 Function18 Off F18 V DELTAUSRMN E7 Function19 Off F19 V DELTAU1DC E7 Function20 Off F20 V DELTAU2DC E7 Max Hold Off Available on models with the external current sensor input option IM WT1801 03EN App 41 xipueddy E Appendix 8 List of Initial Settings and Numeric Data Display Order Item Setting User Defined Event On Off Event Name True False Expression Event No 1 Off Ev1 True False URMS E1 gt 0 00000 Event No 2 Off Ev2 True False IRMS E1 gt 0 00000 Event No 3 Off Ev3 True False EV1 amp EV2 Event No 4 OFF Ev4 True False No expression Event No 5 Off Ev5 True False No expression Event No 6 Off Ev6 True False No expression Event No 7 Off Ev7 True False No expression Event No 8 Off Ev8 True False No expression Formula S Formula Urms Irms S Q Formula Type1 Pc Formula IEC76 1 1976 IEC76 1 1976 s P1 and
71. Key Press this key to display the list of conditions for measuring voltage or current signals such as the wiring system wiring unit measurement range input filter scaling and synchronization source for each input element A list of the measurement range and valid measurement range settings are also displayed ITEM Key Press this key to display a menu for setting the displayed items in the display that has been selected using NUMERIC WAVE or OTHERS FORM Key Press this key to display a menu for selecting the display format for the display that has been selected using NUMERIC WAVE or OTHERS DISPLAY uen sse ar Cm IM WT1801 03EN 1 7 suonoun pue s wey 3ueuoduio BH 1 2 Keys U I P Key S Q A O Key WP q TIME Key and FU FI n Key Each time you press U I P the measurement function of the selected display item switches between measurement functions in the following order U P the measurement function that was selected before you pressed U I P and then back to U The numeric data for the selected measurement function is displayed The above behavior takes place when numeric data is being displayed but a menu is not being displayed Only the measurement function changes When you press S Q A WP q TIME or FU Fl n the measurement function changes in the same manner as was explained above for the U I P key U I MODE Key Each time you press U I MODE the measurement function
72. OURCE LOAD 0 EXT Input element 1 Input element 2 Input element 3 Note For details about the relationship between the wiring system and how measured and computed values are determined see appendix 1 Symbols and Determination of Measurement Functions 2 20 IM WT1801 03EN 2 11 Wiring the Circuit under Measurement When Using Voltage and Current Transformers This section explains how to wire measurement cables from external voltage transformers VT or current transformers CT to the voltage or current input terminals of input elements Also refer to this section when wiring clamp type current sensors that output current To prevent electric shock and damage to the instrument follow the warnings given in section 2 5 Precautions When Wiring the Circuit under Measurement When the maximum voltage of the circuit under measurement exceeds 1000 Vrms you can perform measurements by connecting an external VT to the voltage input terminal If the maximum current of the circuit under measurement exceeds the maximum range of the input elements you can measure the current of the circuit under measurement by connecting an external CT or a clamp type sensor that outputs current to the current input terminal 5Ainput elements When the maximum current exceeds 5 Arms 50Ainput elements When the maximum current exceeds 50 Arms Connecting to the Input Terminal Voltage
73. P2 Sampling Frequency Phase Sync Measure P1 0 5000 P2 0 5000 FREQ MEASURE Available on models without the add on frequency measurement option Freq Items SYNC SOURCE Element Object Sync Source Auto 180 Lead Lag Master U1 11 U2 Element1 Element2 Element3 Element4 Element5 Element6 1 I2 I3 l4 I5 l6 HRM SET Available on models with the harmonic measurement option or the simultaneous dual harmonic measurement option Element Settings Hrm1 PLL Source Hrm1 Min Order Hrm1 Max Order Hrm1 Thd Formula Hrm2 PLL Source Hrm2 Min Order Hrm2 Max Order Hrm2 Thd Formula Element1 to Element6 Hrm1 MOTOR SET Available on models with the motor evaluation function option Scaling Unit Sense Type Analog Auto Range Analog Range Linear Scale A Linear Scale B Calculation Point1X Point1Y Point2X Point2Y Line Filter Sync Source Pulse Range Upper Pulse Range Lower Rated Upper Rated Upper Rated Freq Rated Lower Rated Lower Rated Freq Pulse N Speed Sync Speed Pole Source U1 1 100 1 Total U1 1 100 1 Total Speed Torque Pm 1 0000 1 0000 1 0000 rpm Nm Ww Analog Analog Off Off 20V 20V 1 000 1 000 0 000 0 000 0 000 0 000 0 000 0 000 0 000 0 000 0 000 0 000 Off None 10000 0000 50 0000 0 0000 50 0000 50 0000 15000Hz 50 0000 5000Hz 60 2 I1 Available on models with the simultaneous dual harmonic measurement option App 42 IM WT1801 03EN Append
74. PPK HVF RMS SQR MPK HCF MN SQRT CF KFACT RMN LOG TK EAU DC LOG10 THD EAK AC EXP THF PLLFRQ PC NEG TIF Use the cursor keys to select a character string and press SET to enter the selected character string 4 Press the ENTER soft key or move the cursor to ENTER on the keyboard and press SET to confirm the character string and clear the keyboard IM WT1801 03EN 3 3 suone4edo uowwog B 3 2 Entering Values and Strings Enter a character string from the history Character insertion position Enter a preset character string p ien tes te etri insertion GOW CX XXX GEL gt position CPXaXRYsYr OIG Ca4X 5X 8X CuXvXwIxXv CeX xaX 4XN C12 31 Cz C caps Sa IC Back Space Deletes the previous character All Clear Deletes all characters i ENTER 4 Confirms the characters that you have entered 1 amp History Enter a character string from the history Input History A List of Previously Entered Character Strings HO After selecting an item with the cursor keys TESTOO1 press SET to confirm it Numeric01 WT1800 Note amp cannot be entered consecutively File names are not case sensitive Comments are case sensitive The following file names cannot be used due to MS DOS limitations AUX CON PRN NUL CLOCK COM1 to COMS an
75. T1801 03EN 2 1 Sjueuiaunseo N 104 suoneJedaug Buryelwy G 2 1 Handling Precautions When Carrying the Instrument First turn off the circuit under measurement and remove the measurement cables Then turn off the instrument and remove the power cord and any attached cables As indicated in the following figure use both hands to firmly hold the handles when carrying the instrument In addition if storage media is inserted in the instrument be sure to remove the storage media before you move the instrument When Cleaning the Instrument When cleaning the case or the operation panel turn off the circuit under measurement and the instrument and remove the instrument s power cord from the outlet Then wipe the instrument lightly with a clean dry cloth Do not use chemicals such as benzene or thinner Doing so may cause discoloring and deformation 2 2 IM WT1801 03EN 2 2 Installing the Instrument Installation Conditions Install the instrument in an indoors environment that meets the following conditions Flat and Level Location Install the instrument on a stable surface that is level in all directions If you install the instrument on an unstable or tilted surface the quality of recordings made by its printer and the accuracy of its measurements may be impeded Well Ventilated Location Inlet and vent holes are located on the top and bottom of the instrument To prevent internal overheating allow at least 20 mm o
76. U or I of the selected display item switches between modes in the following order rms mean dc rmean ac and then back to rms The numeric data for the selected measurement function is displayed The above behavior takes place when numeric data is being displayed but a menu is not being displayed ELEMENT Key On WT1800s that have six input elements installed each time you press ELEMENT the input element or wiring unit of the selected display item switches between input elements and wiring units in the following order 1 2 3 4 5 6 ZA 2B 2C and then back to 1 The numeric data for the selected input element or wiring unit is displayed The above behavior takes place when numeric data is being displayed but a menu is not being displayed Only the input element or wiring unit changes The displayed input elements and wiring units vary depending on the number of input elements that are installed in the WT1800 and the selected wiring system SHIFT ELEMENT ALL Key Combination On WT1800s that have six input elements installed pressing SHIFT ELEMENT ALL illuminates the ALL indicator With the WT1800 in this state each time you press ELEMENT the input elements or wiring units of the displayed page switch between input elements and wiring units in the following order 1 2 3 4 5 6 2A 2B XC and then back to 1 The numeric data for the selected input element or wiring unit is displayed Press SHIFT ELEMENT ALL agai
77. UACMAX E1 Rms current IRMSMAX IRMSMAX E1 Current mean IMEANMAX IMEANMAX E1 Current simple average IDCMAX IDCMAX E1 Current rectified mean value IRMEANMAX IRMEANMAX E1 Current AC component IACMAX IACMAX E1 Active power PMAX PMAX E1 Apparent power SMAX SMAX E1 Reactive power Positive peak voltage QMAX UPPEAKMAX QMAX E1 UPPEAKMAX E1 Negative peak voltage UMPEAKMAX UMPEAKMAX E1 Positive peak current IPPEAKMAX IPPEAKMAX E1 Negative peak current IMPEAKMAX IMPEAKMAX E1 Positive peak power PPPEAKMAX PPPEAKMAX E1 Negative peak power PMPEAKMAX Motor Evaluation Option PMPEAKMAX E1 Measurement Function User Defined Function Parameter in Element Wiring Unit Example SPEED E1 to E6 E7 to E9 None or space TORQUE None or space PM None or space SLIP None or space SYNC You cannot omit the parentheses Auxiliary Input Option Measurement Function User Defined Function None or space Parameter in Element Wiring Unit E1 to E6 E7 to E9 Aui xO AUX None or space Au2 AUXX AUX2 None or space You cannot omit the parentheses App 34 IM WT1801 03EN Appendix 6 User Defined Function Operands Delt
78. Umsinwt and the instantaneous current i Imsin wt the instantaneous AC power p is as follows p u xi Umsinwt x Imsin wt Ulcos Ulcos 2ut o U and represent the rms voltage and rms current respectively p is the sum of the time independent term Ulcos and the AC component term of the voltage or current at twice the frequency Ulcos 2wt d AC power refers to the mean power over 1 period When the mean over 1 period is taken AC power P is as follows P Ulcos W Even if the voltage and current are the same the power varies depending on the phase difference The section above the horizontal axis in the figure below represents positive power power supplied to the load and the section below the horizontal axis represents negative power power fed back from the load The difference between the positive and negative powers is the power consumed by the load As the phase difference between the voltage and current increases the negative power increases At 11 2 the positive and negative powers are equal and the load consumes no power When the phase difference between voltage and current is 0 sy 0 2T wt Average power P UI When the phase difference between voltage and current is Positive power Average power P Ulcos Negative power Average power P Ulcos 5 0 The positive and negative powers are the same IM WT1801 03EN App 15
79. User s Manuia WT1800 Precision Power Analyzer Getting Started Guide YOKOGAWA 4 IM WT1801 03EN Yokogawa Meters amp Instruments Corporation 3rd Edition Product Registration Thank you for purchasing YOKOGAWA products YOKOGAWA provides registered users with a variety of information and services Please allow us to serve you best by completing the product registration form accessible from our homepage http tmi yokogawa com PIM 103 03E Thank you for purchasing the WT1800 Precision Power Analyzer The WT1800 is an instrument capable of measuring parameters such as voltage current and power with high precision This getting started guide primarily explains the handling precautions and basic operations of the WT1800 To ensure correct use please read this manual thoroughly before beginning operation Keep this manual in a safe place for quick reference in the event that a question arises This manual is one of four WT1800 manuals Please read all the manuals Manual Title Manual No Description WT1800 Precision Power Analyzer IM WT1801 01EN The supplied CD contains the PDF file of this manual Features Guide This manual explains all the WT 1800 features other than the communication interface features WT1800 Precision Power Analyzer IM WT1801 02EN The supplied CD contains the PDF file of this manual User s Manual The manual explains how to operate the WT1800 WT1800 Precision Power Analyzer IM WT1
80. X1 AUX2 option A CAUTION Only apply signals that meet the following specifications Signals that do not meet the specifications such as those with excessive voltage may damage the WT1800 Auxiliary Input Connectors AUX1 AUX2 O Aveyixny S Apply a sensor output DC voltage signal an analog signal that meets the following specifications DC Voltage Analog input Item Specifications Connector type Isolated BNC connector Input range 50 mV 100 mV 200 mV 500 mV V 2 V 5 V 10 V 20V Effective input range 0 to 110 of the measurement range Input resistance Approx 1 MQ Maximum allowable input 22 V Continuous maximum common mode voltage 42 Vpeak or less IM WT1801 03EN 4 3 4 3 External Clock Input EXT CLK IN A CAUTION Only apply signals that meet the following specifications Signals that do not meet the specifications such as those with excessive voltage may damage the WT1800 External Clock Signal Input Connector AN EXT CLK Apply a clock signal that meets the following specifications to the external clock input connector EXT CLK on the rear panel Common Item Specifications Connector type BNC connector Input level TTL 0 V to 5 V To Apply a Synchronization Source That Determines the Measurement Period Item Specifications Frequency range Same as the measurement ranges listed under Frequency Measurement in section 6 5 Features Input wave
81. a Computation Option Measurement Function User Defined Function DELTAU1 Parameter in Element Wiring Unit Example DELTAU1 E7 E1 to E6 E7 to E9 DELTAU2 E7 DELTAU2 DELTAU3 DELTAUSIG DELTAU3 E7 DELTAUSIG E7 DELTA DELTAI E7 DELTAP1 DELTAP1 E7 DELTAP2 DELTAP2 E7 DELTAP3 DELTAP3 E7 DELTAPSIG DELTAPSIG E7 DELTAU1RMS DELTAU1RMS E7 DELTAU2RMS E7 DELTAU2RMS DELTAU3RMS DELTAUSIGRMS DELTAU3RMS E7 DELTAUSIGRMS E7 DELTAU1MN DELTAU1MN E7 DELTAU2MN DELTAU2MN E7 DELTAU3MN DELTAU3MN E7 DELTAUSIGMN DELTAUSIGMN E7 DELTAU1RMN DELTAU1RMN E7 DELTAU2RMN E7 DELTAU2RMN DELTAU3RMN DELTAU3RMN E7 DELTAUSIGRMN DELTAUSIGRMN E7 DELTAU1DC DELTAU2DC DELTAU1DC E7 DELTAU2DC E7 DELTAU3DC DELTAU3DC E7 DELTAUSIGDC DELTAUSIGDC E7 DELTAU1AC DELTAU1AC E7 DELTAU2AC DELTAU2AC E7 DELTAU3AC DELTAU3AC E7 DELTAUSIGAC DELTAlrms DELTAUSIGAC E7 DELTAIRMS E7 DELTAIMN DELTAIMN E7 DELTAIRMN DELTAIRMN E7 DELTAIDC DELTAIDC E7 DELTAIAC DELTAIAC E7 IM WT1801 03EN App 35 xipueddy E Appendix 6 User Defined Function Operands Harmonic Measurement Option
82. al area may cause radio interference in which case the user is required to correct the interference Cable conditions EXT CLK MEAS START motor evaluation function terminals and AUX input terminals Use BNC cables GP IB interface connector Use a shielded GP IB cable 5 RGB output connector Use a shielded D sub 15 pin cable USB port PC Use a shielded USB cable 5 USB port for peripheral devices Use a USB keyboard that has a shielded cable 5 Ethernet connector Use a category 5 or better Ethernet cable STP Immunity Compliant standard EN61326 1 Table 2 for industrial locations Influence in the immunity environment Measurement input within 20 of range When the crest factor is set to 6 within 40 of range D A output within 20 of FS FS 25V Cable conditions The same as the cable conditions listed above for emissions Applies to products with CE marks For information on other products contact your nearest YOKOGAWA dealer 2 The overvoltage category installation category is a value used to define the transient overvoltage condition and includes the rated impulse withstand voltage CAT II applies to electrical equipment that is powered through a fixed installation such as a wall outlet wired to a distribution board 3 Measurement Category II CAT II applies to electrical equipment that is powered through a fixed installation such as a wall outlet wired to a distribution board and to measure
83. alues and then select Set f you select SNTP the WT1800 uses an SNTP server to set its date and time This setting is valid when Ethernet communications have been established For information on SNTP see the user s manual If you select SNTP set the time difference from Greenwich Mean Time the Time Diff GMT values and then select Set Setting the Time Difference from Greenwich Mean Time Time Difference From GMT This setting is valid 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 Date Time Display OFF ON Type Manual Time Difference From GMT Hour 9 Minute 0 Set Set the hours Set the minutes 4 Checking the Standard Time Using one of the methods below check the standard time of the region where you are using the instrument Check the Date Time Language and Regional Options on your PC e Check the standard time at the following URL http www worldtimeserver com IM WT1801 03EN 3 11 suonejedo UuOWWOD B 3 5 Synchronizing the Clock Note The WT1800 does not support Daylight Savings Time To set the Daylight Savings Time reset the time difference from Greenwich Mean Time
84. ampling count The unit of Time is hours WP is the sum of positive and negative watt hours WP is the sum of the positive power values at each data update interval WP is the sum of the negative power values at each data update interval c 2 1 N 3 rms L Vn Ti E mean N L n Time ara TRAN I n is the nth measured current value ours ac F Ah N is the number of data updates 1 The unit of time is hours q d dc N Y ifn Time N 4 i n is the nth sampled data of the current signal N is the number of data samples time is hours q is the sum of i n s positive and negative ampere hours q is the sum of the above equations for all iterations where i n is positive q is the sum of the above equations for all iterations where i n is negative Volt ampere hours WS VAh S n is the nth measured apparent power value N is the number of data updates N n Sin Time The unit of time is hours Var hours WQ varh N 1 N Lom Q n is the nth measured reactive power value N is the number of data updates The unit of time is hours Time Wiring system Single phase Three phase three wire three wire 1P3W 3P3W Three phase three wire with three voltage three current method 3P3W 3V3A Three phase four wire 3P4W UE V U1 U2 2 U1 U2 U3 3 o IZA I1 12 2 I1 12 13 3 2 PE IW P1 P2 P1 P2 P3 o S
85. an 2 Hz for nt order component input add n m 1 20 of the n order reading to the n m order and n m order of the voltage and current and add n m 1 10 of the nt order reading to the n m order and n m order of the power IM WT1801 03EN 6 13 suoneoyioods Hu 6 7 Motor Evaluation Function Option Item Specifications Input terminal TORQUE SPEED A B Z Input resistance Approx 1 MO Input connector type Analog Input Isolated BNC SPEED is being applied to terminal A Item Specifications Range 1V 2V 5V 10V 20V Input range 110 Line filter Off 100 kHz 1 kHz Continuous maximum 22 V allowable input Maximum common mode 42 Vpeak voltage Sampling interval Approx 200 kS s Resolution 16 bits Accuracy 0 05 of reading 0 05 of range Temperature coefficient 0 03 of range C Pulse Input If you do not need to detect the direction apply SPEED to terminal A If you need to detect the direction apply phase A and phase B of a rotary encoder to terminals A and B respectively If you are measuring the electrical angle apply phase Z of a rotary encoder to terminal Z Item Specifications Input range 12 Vpeak Frequency measurement 2 Hz to 1 MHz range Maximum common mode 42 Vpeak voltage Accuracy 0 05 f 500 of reading 1 mHz Z terminal input fall time and electrical angl
86. an connect a USB mouse and use it to perform the same operations that you can perform with the WT1800 keys Also by clicking a menu item you can perform the same operation that you can perform by pressing the menu item s soft key or selecting the menu item and pressing the SET key Usable USB Mouse Devices You can use mouse devices with wheels that are compliant with USB HID Class Version 1 1 Nolg mmm For USB mouse devices that have been tested for compatibility contact your nearest YOKOGAWA dealer Some settings cannot be configured by a mouse without a wheel USB Ports for Peripherals Connect a USB mouse to one of the USB ports for peripherals on the front panel of the WT1800 3 6 IM WT1801 03EN 3 3 Using USB Keyboards and Mouse Devices Connection Procedure To connect a USB mouse to the WT1800 use one of the USB ports for peripherals You can connect or disconnect a USB mouse at any time regardless of whether the WT1800 is on or off hot plugging is supported When the power is on the mouse is detected approximately 6 seconds after it is connected and the mouse pointer appears Note Only connect compatible USB keyboards mouse devices or memory devices to the USB ports for peripherals Even though there are two USB ports for peripherals do not connect two mouse devices to the WT1800 Operating the WT1800 Using a USB Mouse Operations That Correspond to the Front Panel Keys Top menu Displayi
87. anual ee Chapter 15 e Chapters 16 and 17 e Chapter 18 gt Section 20 6 Chapter 19 and the communication interface user s manual xii IM WT1801 03EN Contents Checking the Package Contents iieri ctis riri rerit tte rea arn risa ara aepo etos aiani ii Safety Precautlons ie eerte ice rh i d bedient e Eg o Ede a n a Lee e Roa vii Waste Electrical and Electronics Equipment sssssssssssssssesen eene nnne X Conventions Used iri This ManUalls siecAves Meee actinic ee eeaeee ea EN bee ESO spe eo koe RAD Ee aa xi luna xii Chapter 1 Component Names and Functions 1 1 Front Panel Rear Panel and Top Panel ssssssssssseseeeee eene 1 1 1 2 KOySu nsi nidi nnt ceeds cect Nagi DUAE DEDI RII E UI DIE 1 4 1 3 ICT NBI 1 12 1 4 SEunEenim T M 1 13 Chapter 2 Making Preparations for Measurements 2 1 Handling Precautions simii tret prec puede ces rte tenta teneo neu erba e e dts eel ees 2 1 2 2 Installing the MSthUIMONE T 2 3 A 2 3 Connecting the Power Supply rnit rnit nen nata rennen pa aE ar i Ei 2 5 24 Turning the Power Switch On and Off ssssssssssssssssessseee setenta 2 6 A 2 5 Precautions When Wiring the Circuit under Measurement sess 2 7 2 6 Assembling the Adapters for t
88. ation and setting the integration mode the integration timer the scheduled integration the integration auto calibration the watt hour integration methods for each polarity the current mode for current integration and the rated time of integrated D A output option CR woo J ses C m Cursor Measurement SHIFT FORM CURSOR Key Combination Press this key combination when you are displaying waveforms trends or bar graphs to display a menu for measuring values such as waveform and graph values using cursors On models with the harmonic measurement option or simultaneous dual harmonic measurement option DISPLAY Breq ne es fe rec vow CURSOR IM WT1801 03EN 1 9 suonoun pue sauiewN 3ueuoduio BH 1 2 Keys Storing Data Saving and Loading Data Printing on the Built In Printer Option STORE START Key Press this key to start the storage operation STORE STOP Key Press this key to stop the storage operation SHIFT STORE STOP STORE RESET Key Combination Press this key combination to reset the storage operation SHIFT STORE START STORE SET Key Operation Press this key combination to display a menu for setting storage control stored items and save conditions FILE Key Press this key to display a menu for performing operations such as saving and loading setup parameters saving measured data deleting and copying folders directories and files r
89. cSp S1 S2 S3 S4 S5 S6 SZA q1 q5 P4 F4 Slip Q1 Q2 Q3 Q4 Q5 Q6 Q2ZA P2 P6 P5 F5 Pm M A2 A3 M A5 6 AZA WP2 WP6 P6 F6 c1 2 o3 o4 p5 06 PZA Irms2 Irms6 PXA F7 Pc1 Pc2 Pc3 Pc4 Pc5 Pc6 Pc2A q2 q6 P2B F8 fU1 fU2 fU3 fU4 fU5 fU6 Urms2B P3 PXA n1 F9 fl1 fl2 fl3 fl4 fl5 fl6 Irms B WP3 WPZA n2 F10 U pk1 U pk2 U pk3 U pk4 U pk5 U pk6 P2B Irms3 IrmszA n3 F11 U pk1 U pk2 U pk3 U pk4 U pk5 U pk6 SZB q3 qzA n4 F12 I pk1 I pk2 I pk3 I pk4 I pk5 I pk6 Q2B P4 PZB F13 l pk1 l pk2 l pk3 l pk4 l pk5 l pk6 AZB WP4 WP2B F14 CfU1 CfU2 CfU3 CfU4 CfU5 CfU6 PZB Irms4 Irms2B F15 Cfl1 Cfl2 Cfl3 Cfl4 Cfl5 Cfl6 Pc2B q4 qzB F16 Matrix Display Page 1 2 3 4 5 6 7 8 9 Urms Urms Irms Time Irms Umn Imn WP P Udc Idc WP S Urmn Irmn WP Q Uac lac q U pk l pk q o U pk l pk q fU CfU Cfl WS fl fU fl WQ App 48 IM WT1801 03EN Appendix 8 List of Initial Settings and Numeric Data Display Order All Items Display Page 1 2 3 4 5 6 7 8 9 10 11 12 Urms Urms Irms Time F1 Ev1 n1 AU1 U k Uhdf k Uthd K factor rmsl Umn Imn Wp F2 Ev2 n2 AU2 I k Ihdf k Ithd EaU P Udc Idc WP F3 Ev3 n3 AU3 P k Phdf k Pthd Eal S Urmn Irmn WP
90. cations Mode Manual normal continuous real time normal and real time continuous Integration timer Integration can be stopped automatically by a timer that can be set to 0000h00m00s to 10000h00m00s Count overflow When the maximum integration time 10000 hours is reached or when an integrated value reaches the maximum or minimum displayable integrated value the integration time and value at that point are held and integration is stopped WP 1999999 MWh q 999999 MAh WS 999999 MVAh WQ x999999 Mvarh Accuracy normal measurement accuracy 0 02 of reading Timer accuracy 0 02 of reading IM WT1801 03EN 6 11 suoneoyioods Bu 6 6 Harmonic Measurement Option Item Specifications DUT All installed elements Method PLL synchronization method no external sampling clock Frequency range The range for the fundamental frequency of the PLL source is 0 5 Hz to 2 6 kHz PLL source Select the voltage or current of each input element or an external clock On models with the G6 option you can select two PLL sources and perform dual harmonic measurement On models with the G5 option you can select one PLL source Input level With voltage input 15 V range or higher With direct current input 50 mA range or higher With external current sensor input 200 mV range or higher 5096 or more of the rated measurement range when the crest factor is 3 10096 or more of the rated measurement range when
91. ce of the load circuit Z de U dc Zk U k Z 0 tse s 97 i Series resistance of the load circuit Rs dc T Rs k T Rs IQ Series reactance of the load circuit Xs dc EA Xs k 3 E Xs I0 Parallel resistance of the load circuit Rp dc ide Rp k UK Rp 9 1 6 Plac P k Parallel reactance of the load circuit Xp dc weer Xp k E Frequency of PLL source 1 Frequency of the PLL source of harmonic group 1 PLL source 1 FreqPLL1 Hz dur Hrs 2 Frequency of the PLL source of harmonic group 2 PLL source 2 Continued on next page Note k denotes a harmonic order r denotes the real part and j denotes the imaginary part Uk Ur k Uj k I k Ir k and lj K are expressed using rms values The minimum harmonic order is denoted by min min can be set to either 0 the dc component or 1 the fundamental component The upper limit of harmonic analysis is denoted by max max is either an automatically determined value or the specified maximum measured harmonic order whichever is smaller App 4 IM WT1801 03EN Appendix 1 Symbols and Determination of Measurement Functions Table 2 4 Methods of Computation and Determination The numbers and characters in the parentheses are dc when k 0 or k when k 1 to max Measurement Function When the Denominator of the Distortion Factor Equation Is the Total Value Total When the Deno
92. cept the date and time settings display on off setting will be reset and the setup data stored on the internal RAM disk will be reset to their factory default values Note Only initialize the WT1800 if you are sure that it is okay for all of the settings to be returned to their initial values You cannot undo an initialization We recommend that you save the setup parameters before you initialize the WT1800 IM WT1801 03EN 3 13 suone4edo uouiulo B 3 7 Displaying Help Displaying Help Press HELP to display the help screen The table of contents and index appear in the left frame and text appears in the right frame Switching between Frames To switch to the frame that you want to control use the left and right cursor keys Moving Cursors and Scrolling To scroll through the screen or to move the cursor in the table of contents or index use the up and down cursor keys e Press PAGE A or PAGE to scroll through the screen by approximately half a page in the specified direction Press SHIFT PAGE A A to display the first entry e Press SHIFT PAGE V VW to display the last entry Moving to the Link Destination To move to a description that relates to blue text or to move from the table of contents or index to the corresponding description move the cursor to the appropriate blue text or item and press SET Displaying Panel Key Descriptions With help displayed press a panel key to display an explanation of it
93. d LPT1 to LPT9 For details on file name limitations see the features guide IM WT1801 01EN IM WT1801 03EN 3 3 Using USB Keyboards and Mouse Devices Connecting a USB Keyboard You can connect a USB keyboard and use it to enter file names comments and other items Usable Keyboards You can use the following keyboards that conform to USB Human Interface Devices HID Class Ver 1 1 When the USB keyboard language is English 104 key keyboards e When the USB keyboard language is Japanese 109 key keyboards Note Do not connect incompatible keyboards The operation of USB keyboards that have USB hubs or mouse connectors is not guaranteed For USB keyboards that have been tested for compatibility contact your nearest YOKOGAWA dealer USB Ports for Peripherals Connect a USB keyboard to one of the USB ports for peripherals on the front panel of the WT1800 Connection Procedure Connect a USB keyboard directly to the WT1800 using a USB cable You can connect or remove the USB cable regardless of whether the WT1800 is on or off hot plugging is supported Connect the type A connector of the USB cable to the WT1800 and connect the type B connector to the keyboard When the power is turned on the keyboard is detected and enabled approximately 6 seconds after it is connected Note Only connect compatible USB keyboards mouse devices or memory devices to the USB ports for peripherals Do not connect multiple ke
94. d Plug To prevent fire and electric shock only use a power cord supplied by YOKOGAWA The main power plug must be plugged into an outlet with a protective earth terminal Do not disable this protection by using an extension cord without protective earth grounding Additionally do not use the power cord supplied with this instrument with another instrument Connect the Protective Grounding Terminal To prevent electric shock be sure to connect to a protective earth terminal before turning on the instrument s power The power cord that comes with the instrument is a three prong type power cord Connect the power cord to a properly grounded three prong outlet Do Not Impair the Protective Grounding Never cut off the internal or external protective earth wire or disconnect the wiring of the protective earth terminal Doing so poses a potential shock hazard Do Not Operate with Defective Protective Grounding or a Defective Fuse Do not operate the instrument if protection features such as the protective earth or fuse might be defective Check the grounding and the fuse before operating the instrument Do Not Operate in an Explosive Atmosphere Do not operate the instrument in the presence of flammable gasses or vapors Operation in such an environment constitutes a safety hazard Fuse To have the instrument s fuse replaced contact your nearest YOKOGAWA dealer Do Not Remove the Case The case should be removed by YOKOGAWA s qualified personnel o
95. d to correct the interference Not xmmm Ifyou are measuring large currents or voltages or currents that contain high frequency components take special care in dealing with mutual interference and noise when you wire the cables Keep measurement cables as short as possible to minimize the loss between the circuit under measurement and the instrument The thick lines on the wiring diagrams shown in sections 2 9 to 2 11 are the parts where the current flows Use wires that are suitable for the current levels To make accurate measurements of the voltage of the circuit under measurement connect the measurement cable that is connected to the voltage input terminal to the circuit as closely as possible To make accurate measurements separate the measurement cables as far away from the ground wires and the instrument s case as possible to minimize static capacitance to the ground To measure the apparent power and power factor more accurately on an unbalanced three phase circuit we recommend that you use a three voltage three current method with a three phase three wire system 3P3W 3V3A IM WT1801 03EN sjueuiaJnseo y 104 suoneuedaag Bulye 2 6 Assembling the Adapters for the Voltage Input Terminals Assembling the 758931 Safety Terminal Adapter When connecting a measurement cable to a WT1800 voltage input terminal use the included 758931 Safety Terminal Adapter or the 758923 Safety Terminal Adapter sold separatel
96. date Voltage crest factor CfU Current crest factor Cfl Upk Urms Ipk Irms Voltage crest factor CfU Current crest factor Cfl Upk U pk or U pk whichever is larger lpk I pk or I pk whichever is larger Corrected Power Pc W IEC76 1 1976 IEEE C57 12 90 1993 VEMM EM P1 P2 Urms Umn P1 P2 coefficients defined in the applicable standards IEC76 1 1993 P 1 a Umn ams Umn Continued on next page IM WT1801 03EN App 1 xipueddy H Appendix 1 Symbols and Determination of Measurement Functions Table 2 3 Me asurement Function Methods of Computation and Determination For information about the symbols in the equations see the notes at the end of page App 3 Integration time Time from integration start to integration stop The unit of h m s Time When the watt hour integration method for each polarity is Charge Discharge WP 1 Watt hours wpa umm i n Time Wh WP N ivi N is the integration time sampling count The unit of Time is hours WP is the sum of positive and negative watt hours WP is the sum of the above equations for all iterations where u n i n is positive WP is the sum of the above equations for all iterations where u n i n is negative When the watt hour integration method for each polarity is Sold Bought N 1 s Y ut it Time nz1 N is the integration time s
97. diately after you turn the item under measurement off The amount of time that power remains in the item under measurement varies depending on the item Operating Environment Limitations CAUTION This product is a Class A for industrial environments product Operation of this product in a residential area may cause radio interference in which case the user is required to correct the interference IM WT1801 03EN ix Waste Electrical and Electronics Equipment Waste Electrical and Electronic Equipment WEEE Directive 2002 96 EC This directive is only valid in the EU mmm his product complies with the WEEE Directive 2002 96 EC marking requirement This marking indicates that you must not discard this electrical electronic product in domestic household waste Product Category With reference to the equipment types in the WEEE directive Annex 1 this product is classified as a Monitoring and Control Instrumentation product Do not dispose in domestic household waste When disposing products in the EU contact your local YOKOGAWA Europe B V office Xx IM WT1801 03EN Conventions Used in This Manual Unit k Denotes 1000 Example 100 kS s sample rate K Denotes 1024 Example 720 KB file size Displayed Characters Bold characters in procedural explanations are used to indicate panel keys and soft keys that are used in the procedure and menu items that appear on the screen Notes and Cautions The n
98. ding The general safety precautions described herein must be observed during all phases of operation If the instrument is used in a manner not specified in this manual the protection provided by the instrument may be impaired YOKOGAWA assumes no liability for the customer s failure to comply with these requirements The following Symbols Are Used on This Instrument A Warning handle with care Refer to the user s manual or service manual This symbol appears on dangerous locations on the instrument which require special instructions for proper handling or use The same symbol appears in the corresponding place in the manual to identify those instructions A Electric shock danger Protective earth ground or protective earth ground terminal dL Ground or the functional ground terminal do not use as the protective earth ground terminal w Alternating current Both direct and alternating current On power O Off power I In position of a bi stable push control 0 Out position of a bi stable push control IM WT1801 03EN vii Safety Precautions Be Sure to Comply with the Precautions below Not Complying Might Result in Injury or Death WARNING Use the Correct Power Supply Before connecting the power cord ensure that the power supply voltage matches the rated supply voltage of the instrument and that it is within the maximum rated voltage of the provided power cord Use the Correct Power Cord an
99. e measurement start time Detection level 500 ns or less H level approx 2 V or more L level approx 0 8 V or less Pulse width 500 ns or more To measure electrical angles you need the harmonic measurement option G5 or G6 6 14 IM WT1801 03EN 6 8 Auxiliary Input Option Item Specifications Input terminal AUXA AUX2 Input format Analog Input resistance Approx 1 MO Input connector type Isolated BNC Range 50 mV 100 mV 200 mV 500 mV 1V 2V 5V 10V 20V Input range 110 Line filter Off 100 Hz 1 kHz Continuous maximum 22 V allowable input Maximum common mode 42 Vpeak voltage Sampling interval Approx 200 kS s Resolution 16 bits Accuracy 0 05 of reading 0 05 of range Add 20 uV C for temperature changes after zero level compensation or range change Temperature coefficient 0 03 of range C 6 9 D A Output and Remote Control Option D A Output Item Specifications D A conversion resolution 16 bits Output voltage Each rated value 5 V FS maximum of approx 7 5 V Update interval Same as the WT1800 data update interval Number of outputs 20 channels the output items can be set for each channel Accuracy each measurement function s accuracy 0 1 of FS FS 5 V Minimum load 100 kQ Temperature coefficient 0 05 of FS C Continuous maximum 42 Vpeak or less common mode voltage Remote
100. e humidity environment or when there is a sudden change in temperature In these kinds of circumstances wait for at least an hour before using the instrument to acclimate it to the surrounding temperature Storage Location When storing the instrument avoid the following places Where the relative humidity is greater than 80 Where the level of mechanical vibration is high In direct sunlight Where there are corrosive or explosive gasses Where the temperature is 60 C or higher Where an excessive amount of soot dust salt or iron is present Near a strong source of heat or moisture Where water oil or chemicals may splash onto the instrument We recommend that the instrument be stored in an environment where the temperature is between 5 C and 40 C and the relative humidity is between 2096 RH and 8096 RH IM WT1801 03EN 2 3 sjueuiaJnseo y 104 suoneuedaag Burjelw G 2 2 Installing the Instrument Installation Position Desktop Place the instrument on a flat level surface as shown in the figure below Rubber Stoppers If the instrument is installed so that it is flat as shown in the above figure rubber stoppers can be attached to the feet to prevent the instrument from sliding Two sets of rubber stoppers four stoppers are included in the package Rack Mounting To mount the instrument on a rack use a rack mount kit sold separately Name Model Notes Rack mount kit 751535 E4 F
101. e to the voltage signal Voltage waveform Synchronization source setting voltage signal Current waveform App 26 IM WT1801 03EN Appendix 5 Setting the Measurement Period As another example if an inverter is being measured and the current waveform distortion is smaller than the voltage waveform distortion set the synchronization source to the current signal votoge HAITI TAT NWO LI Synchronization source setting current signal Current n y waveform Zero Crossing The rising or falling zero crossing is the time when the synchronization source passes through level zero the center of the amplitude on a rising or falling slope The measurement period on the WT1800 is between the first rising or falling zero crossing and the last rising or falling zero crossing in the data update interval The WT1800 determines whether to define the measurement period using the rising or falling zero crossing automatically by choosing the method that will result in the longest measurement period Data update interval Measurement period m Synchronization source 5 ARRAY Rising zero crossing O Falling zero crossing When the Period of the Synchronization Source Cannot Be Detected If the total number of rising and falling zero crossings on the input signal that has been set as the synchronization source is less than two within the data update interval the period cannot be detected Als
102. e wire system that uses a three voltage three current method 3P3W 3V3A The following wiring examples are for connecting a CT When connecting a clamp type current sensor that outputs current substitute the CT with the clamp type current sensor The wiring examples shown below are examples of the following wiring systems in which the specified input elements have been wired To wire other input elements substitute the numbers in the figures with the appropriate element numbers Single phase two wire systems 1P2W Input element 1 Single phase three wire system 1P3W and three phase three wire system 3P3W Input elements 1 and 2 Three phase three wire system that uses a three voltage three current method 3P3W 3V3A and three phase four wire system 3P4W Input elements 1 to 3 Wiring Example of Single Phase Two Wire Systems 1P2W with a VT and CT SOURCE LOAD SOURCE LOAD UY 0 34 QD QD 2 2 Input element 1 Input element 1 Wiring Example of a Single Phase Three Wire System 1P3W with VTs and CTs SOURCE LOAD OH 9 1 4 QD QD 2 2 Input element 1 Input element2 2 22 IM WT1801 03EN 2 11 Wiring the Circuit under Measurement When Using Voltage and Current Transformers Wiring Example of a Three Phase Three W
103. easuring a Three Phase Device If a three phase device is measured with input elements 1 and 2 using a three phase three wire System set the synchronization source of input elements 1 and 2 to the same signal For example set the synchronization source of input elements 1 and 2 to U1 or 11 The measurement periods of input elements 1 and 2 will match and it will be possible to measure the voltage 2 current and 2 power of a three phase device more accurately Likewise if a three phase device is measured with input elements 1 2 and 3 using a three phase four wire system set the synchronization source of input elements 1 2 and 3 to the same signal To facilitate this sort of configuration the synchronization source setting on the WT1800 is linked to the wiring unit of the wiring system when independent input element configuration is turned off If independent input element configuration is turned on the synchronization source of each input element in the wiring unit can be set independently Data update interval Measurement period E gt Synchronization source Input signal U1 Input signal U2 gt Input signal U3 g Synchronization Source Setup Example Input element 1 Input element 2 U1 or I1 Input element 3 IM WT1801 03EN App 29 xipueddy H Appendix 5 Setting the Measurement Period Setting the Synchronization Period When Measuring the
104. ed heat caused by current input Add the following values to the current and power accuracies of 50 A input elements AC input signal 0 00006 x I of reading DC input signal 0 00006 x I of reading 0 004 x I mA 6 8 IM WT1801 03EN 6 4 Accuracy Add the following values to the current and power accuracies of 5 A input elements AC input signal 0 006 x I 96 of reading DC input signal 0 006 x 1 of reading 0 004 x 1 of reading l is the current reading A Even if the current input decreases the influence from self generated heat continues until the shunt resistor temperature decreases Accuracy changes caused by data update interval When the data update interval is 50 ms add 0 1 of the reading When the interval is 100 ms add 0 05 of the reading Guaranteed accuracy ranges for frequency voltage and current All accuracy figures for 0 1 Hz to 10 Hz are reference values The voltage and power accuracy figures for 30 kHz to 100 kHz when the voltage exceeds 750 V are reference values The current and power accuracy figures for DC 10 Hz to 45 Hz and 400 Hz to 100 kHz when the current exceeds 20 A are reference values The accuracy when the crest factor is 6 is the same as that when the crest factor is 3 after doubling the measurement range Item Specifications Power factor A influence When A 0 Apparent power reading x 0 1 in the range of 45 Hz to 66 Hz For other frequency ranges see below Be aware that these figures
105. elow as a general guideline Contact your nearest YOKOGAWA dealer to have parts replaced Part Name Recommended Replacement Interval Built in printer Under normal conditions of use the period it takes to use 200 rolls of printer paper part number B9316FX Cooling fan 3 years Backup battery 3 years lithium IM WT1801 03EN 5 3 uonoedsu pue eoueugjure y 5unoouse qnou BH Chapter 6 Specifications 6 1 Input Item Specifications Input terminal type Voltage Plug in terminal safety terminal Current Direct input large binding post External current sensor input isolated BNC connector Input format Voltage Floating input through resistive voltage divider Current Floating input through shunt Measurement range Voltage Crest factor 3 1 5 V 3 V 6 V 10 V 15 V 30 V 60 V 100 V 150 V 300 V 600 V 1000 V Crest factor 6 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 500 V Current Direct input 50 A input elements Crest factor 3 14 2A 5A 10A 20A 50A Crest factor 6 500 mA 1A 2 54 5A 10A 25A 5A input elements Crest factor 3 10 mA 20 mA 50 mA 100 mA 200 mA 500 mA 1A 2A 5A Crest factor 6 5 mA 10 mA 25 mA 50 mA 100 mA 250 mA 500 mA 1A 2 5A External current sensor input Crest factor 3 50 mV 100 mV 200 mV 500 mV 1V 2V 5 V 10V Crest factor 6 25 mV 50 mV 100 mV 250 mV 500 mV 1 V 2 5 V 5 V Input impedance Voltage
106. enaming folders and files and making folders IMAGE SAVE Key Press this key to save the screen image data SHIFT IMAGE SAVE MENU Key Combination Press this key combination to display a menu for setting screen image data save options such as the file name data format color mode and comments PRINT Key Press this key to print the screen image or the list of numeric data SHIFT PRINT MENU Key Combination Press this key combination to display a menu for performing print related tasks such as setting the print format the comment and auto printing and feeding paper Ce rn er store sar STORE STOP STORE SET STORE RESET Other Functions SHIFT SINGLE CAL Key Combination Press this key combination to execute zero level compensation When zero level compensation is executed the WT1800 creates a zero input condition in its internal circuitry and sets the zero level to the level at that point NULL Key Press NULL to enable the NULL feature The NULL indicator illuminates Press NULL again to disable the NULL feature The NULL indicator turns off SHIFT NULL NULL SET Key Combination Press this key combination to display a menu for setting the NULL feature UTILITY Key Press this key to display a menu for displaying system information input element information installed options and firmware version initializing settings configuring communication settings system settings
107. ent is expressed by Imsinwt where Im is the maximum value of the current w is the angular velocity defined as w 2rrf and f is the frequency of the sinusoidal alternating current The thermal action of this alternating current is proportional to i and varies as shown in the figure below Thermal action is the phenomenon in which electric energy is converted to heat energy when a current flows through a resistance i Imsinwt The rms value effective value is the DC value that generates the same thermal action as the alternating current With as the DC value that produces the same thermal action as the alternating current Iz V The mean of i over one period Because this value corresponds to the root mean square of the instantaneous values over 1 period the effective value is normally denoted using the abbreviation rms App 12 IM WT1801 03EN Appendix 2 Power Basics Power harmonics and AC RLC circuits To determine the mean value the average is taken over 1 period of absolute values because simply taking the average over 1 period of the sine wave results in a value of zero With Imn as the mean value of the instantaneous current i which is equal to Imsinwt 2T 1 2 Imn The mean of il over one period x i dwt Im These relationships also apply to sinusoidal voltages The maximum value rms value and mean value of a sinusoidal alternating current are related as shown bel
108. ent values from the A D converter is converted to single precision floating point data before it undergoes computation IM WT1801 03EN App 11 xipueddy E Appendix 2 Power Basics Power harmonics and AC RLC circuits This section explains the basics of power harmonics and AC RLC circuits Power Electrical energy can be converted into other forms of energy and used For example it can be converted into the heat in an electric heater the torque in a motor or the light in a fluorescent or mercury lamp In these kinds of examples the work that electricity performs in a given period of time or the electrical energy expended is referred to as electric power The unit of electric power is watts W 1 watt is equivalent to 1 joule of work performed in 1 second DC Power The DC power P in watts is determined by multiplying the applied voltage U in volts by the current I in amps P UI W In the example below the amount of electrical energy determined by the equation above is retrieved from the power supply and consumed by resistance R in ohms every second Alternating Current Normally the power supplied by power companies is alternating current with sinusoidal waveforms The magnitude of alternating current can be expressed using values such as instantaneous maximum rms and mean values Normally it is expressed using rms values The instantaneous value i of a sinusoidal alternating curr
109. er Defined Function None or space Parameter in Element Wiring Unit Example E1 to E6 None or space E7 to E9 None or space None or space None or space None or space None or space None or space None or space None or space None or space None or space None or space None or space None or space None or space None or space None or space None or space None or space You cannot omit the parentheses User Defined Events Measurement Function User Defined Function None or space Parameter in Element Wiring Unit Example E1 to E6 None or space E7 to E9 None or space None or space None or space None or space None or space None or space You cannot omit the parentheses None or space IM WT1801 03EN App 33 xipueddy E Appendix 6 User Defined Function Operands MAX Hold Measurement Function User Defined Function Parameter in Element Wiring Unit E1 to E6 E7 to E9 Rms voltage URMSMAX Example URMSMAX E1 Voltage mean UMEANMAX UMEANMAX E1 Voltage simple average UDCMAX UDCMAX E1 Voltage rectified mean value Voltage AC component URMEANMAX UACMAX URMEANMAX E1
110. er Transformer with Single Phase DC Input and Three Phase AC Output If you are using the connections shown on the next page to measure a device that converts single phase DC power to three phase AC power set the synchronization source of all input elements to the same signal the voltage or current of element 2 or 3 on the AC power end In this example set the synchronization source of input elements 1 2 and 3 to U2 or I2 U3 or 13 The measurement periods of the input signal and all output signals will match and it will be possible to measure the power conversion efficiency of the power transformer more accurately Single phase DC power Connect to input element 1 Three phase AC power Connect to input elements 2 and 3 using a three phase three wire system App 30 IM WT1801 03EN Appendix 5 Setting the Measurement Period AC power U2 and I2 DC power U1 and l1 AC power U3 and I3 M r Power transformer Synchronization Source Setup Example Input element 1 Input element 2 U2 or I2 U3 or I3 Input element 3 Power Transformer with Single Phase AC Input and Three Phase AC Output If you are using the connections shown in the figure below to measure a device that converts single phase AC power to three phase AC power set the synchronization source of input elements on the input end to the same signal and do the same for input elements on the output end In thi
111. er lines are connected in star wiring configurations or delta wiring configurations Star wiring Delta wiring R R pu or Vector Display of Three Phase Alternating Current In typical three phase AC power the voltage of each phase is offset by 120 The figure below expresses this offset using vectors The voltage of each phase is called the phase voltage and the voltage between each phase is called the line voltage R Phase voltage X voltage T S If a power supply or load is connected in a delta wiring configuration and no neutral line is present the phase voltage cannot be measured In this case the line voltage is measured Sometimes the line voltage is also measured when measuring three phase AC power using two single phase wattmeters the two wattmeter method If the magnitude of each phase voltage is equal and each phase is offset by 120 the magnitude of the line voltage is J3 times the magnitude of the phase voltage and the line voltage phase is offset by 30 Below is a vector representation of the relationship between the phase voltages and line currents of a three phase AC voltage when the current lags the voltage by 0 Usa App 14 IM WT1801 03EN Appendix 2 Power Basics Power harmonics and AC RLC circuits AC Power AC power cannot be determined as easily as DC power because of the phase difference between the voltage and current caused by load If the instantaneous voltage u
112. erprints on the paper thereby blurring the recorded sections f you rub something against the surface of the roll paper the paper may change color due to frictional heat If the roll paper comes into contact with products such as chemicals or oil there is a chance that the paper will change color or that the recorded sections will disappear 2 24 IM WT1801 03EN 2 12 Loading Roll Paper into the Built In Printer Option Loading the Roll Paper A A roll paper cutter is present inside the printer unit cover Be careful of the cutter so as to avoid injuring your fingers or hands Do not insert your fingers into the opening on the printer unit the roll paper ejection hole When you have opened the printer unit cover to place roll paper in the holder avoid touching the cutter with your fingers and hands Do not touch the print head and print motor with your fingers and hands Doing so when these parts are extremely hot may lead to burns 1 Slide the lever to the right to make the printer unit 2 Insert your finger into the groove on the right side protrude from the WT1800 of the printer unit 3 Hold the top bottom and right side of the printer 4 Hold the left and right sides of the printer unit s unit and then pull it toward you until it stops pull tray with your hands and push the right and left the unit approximately 5 cm sides of the front of the cover with your thumbs to raise it Cover
113. et Turn the circuit under measurement off before connecting and disconnecting cables to it Connecting or removing measurement cables while the power is on is dangerous Do not wire a current circuit to the voltage input terminal or a voltage circuit to the current input terminal Strip the insulation covers of measurement cables so that when they are wired to the input terminals the conductive parts bare wires do not protrude from the terminals Also make sure to fasten the input terminal screws securely so that cables do not come loose When connecting measurement cables to the voltage input terminals only connect measurement cables that have safety terminals that cover their conductive parts Using a terminal with bare conductive parts such as a banana plug can be dangerous if the terminal comes loose When connecting cables to the external current sensor input terminals only connect cables that have safety terminals that cover their conductive parts Using a connector with bare conductive parts can be dangerous if the terminal comes loose When the voltage of the circuit under measurement is being applied to the current input terminals do not touch the external current sensor input terminals Doing so is dangerous because the terminals are electrically connected inside the instrument When connecting a measurement cable from an external current sensor to an external current sensor input connector remove the cables connected to the cur
114. f space around the inlet and vent holes When connecting measurement wires and other various cables and when opening and closing the cover of the built in printer allow extra space for operation Ambient Temperature and Humidity Ambient temperature 5 C to 40 C Ambient humidity 20 RH to 80 RH when the printer is not being used 35 RH to 80 RH when the printer is being used In either case there must be no condensation Do Not Install the Instrument in the Following Kinds of Places n direct sunlight or near sources of heat n an environment with excessive amounts of soot steam dust or corrosive gases Near sources of strong magnetic fields Near high voltage equipment or power lines n an environment that is subject to large levels of mechanical vibration Onanunstable surface Note Forthe most accurate measurements use the instrument in the following kind of environment Ambient temperature 23 C x 5 C Ambient humidity 30 RH to 75 RH no condensation When using the instrument in a place where the ambient temperature is 5 C to 18 C or 28 C to 40 C add the temperature coefficient to the accuracy as specified in chapter 6 When installing the instrument in a place where the ambient humidity is 30 or less take measures to prevent static electricity such as using an anti static mat Condensation may form when the instrument is moved from a low temperature humidity environment to a high temperatur
115. f the direct current input range x 100 of range For the accuracies of waveform display data functions Upk and Ipk Add the following values reference values to the accuracies listed above The effective input range is within 300 600 when the crest factor is set to 6 of the range Voltage input 1 5 x N 15 range 0 5 of range Direct current input range 50 A input element 3 x v 1 range of range 10 mA 5 A input element 10 x V 10m range 0 5 of range External current sensor input range 50 mV to 200 mV range 10 x V 0 01 range 0 5 of range 500 mV to 10 V range 10 x V 0 05 range 0 5 of range Influence of temperature changes after zero level compensation or range change Add the following values to the accuracies listed above DC voltage accuracy 0 02 of range C Direct current input DC accuracy 50 A input element 1 mA C 5 Ainput element 10 pA C External current sensor input DC accuracy 50 uV C DC power accuracy the product of the voltage influence and the current influence Influence of self generated heat caused by voltage input Add the following values to the voltage and power accuracies AC input signal 0 0000001 x U of reading DC input signal 0 0000001 x U 96 of reading 0 0000001 x U 96 of range U is the voltage reading V Even if the voltage input decreases the influence from self generated heat continues until the temperature of the input resistor decreases Influence of self generat
116. f the voltage flows Thus the current phase leads the voltage C 1 v nja App 18 IM WT1801 03EN Appendix 2 Power Basics Power harmonics and AC RLC circuits Series RLC Circuits The equations below express the voltage relationships when resistance Rs O inductance L H and capacitance C F are connected in series U 2A Uns UL Uc A IRs IX IXc IJ Rs X Xc IJ RS XS Xs E Q tan aJ Rs Xs Rs i Rs L C be NA Agel anie See URs l UL if Uc U The relationship between resistance Rs reactance Xs and impedance Z is expressed by the equations below Xs XL Xc Z JRs Xs Parallel RLC Circuits The equations below express the current relationships when resistance Rp Q inductance L H and capacitance C F are connected in parallel U U U 2 2 et l l IR IL Ic Rp XL Me 1 4 a 1 4 nud a 4 Es Xc U RP XP IRPXpP _ RP yz tan X A4 Rp Xe Ic c 1I U IL L i DIR IRe RP The relationship between resistance Rp reactance Xp and impedance Z is expressed by the equations below XLXc Xp Xc XL RPXP Z A4 Rp Xp IM WT1801 03EN App 19 xipueddy E Appendix 3 How to Make Accurate Measurements Effects of Power Loss By wiring a circuit to match the load you can mi
117. filter Off 1 Hz to 1000 Hz in steps of 1 Hz 6 11 Computations and Event Feature Item Specifications User defined functions Used to compute equations that are created by combining measurement function symbols and operators up to 20 equations can be created Efficiency equation Up to four efficiencies can be displayed by setting the items to measure with the efficiency equation User defined events Event Set conditions for measured values Auto printing storage and D A output can be performed as the result of an event occurring 6 16 IM WT1801 03EN 6 12 Display Numeric Display Item Specifications Number of Displayed Digits If the value is less than or equal to 60000 Five digits Display Resolution If the value is greater than 60000 Four digits Number of displayed items Select from 4 8 16 Matrix ALL Hrm List Single Hrm List Dual and Custom Waveform Display Item Specifications Display format Peak to peak compressed data If the time axis setting is set so that there are not enough sampled data the missing data values are filled using the previous data value Time axis In the range of 0 05 ms to 2 s div Must be less than or equal to 1 10 of the data update rate Trigger Trigger type Edge Trigger mode Select from off auto and normal Triggering is automatically switched off during integration Trigger source Can be set to an exte
118. form 5096 duty ratio rectangular wave To Apply a PLL Source during Harmonic Measurement Item Specifications Frequency range 0 5 Hz to 2 6 kHz Input waveform 5096 duty ratio rectangular wave To Apply a Trigger Source for Displaying Waveforms Item Specifications Minimum pulse width 1 us Trigger delay Within 1 us 3 sample intervals IM WT1801 03EN 4 4 External Start Signal I O MEAS START A CAUTION External Start Signal I O Connector f you have set the WT1800 as the master unit do not apply an external voltage to the external start signal I O connector MEAS START Doing so may damage the WT1800 f you have set the WT1800 as a slave unit or set External Sync to ON in high speed data capturing mode only apply signals to the external start signal I O connector that meet the following specifications Signals that do not meet the specifications such as those with excessive voltage may damage the WT1800 O Mexny Il MEAS START To Apply a Master Slave Synchronization Signal during Normal Measurement Connect the external start signal I O connectors on the rear panels of the master and slave instruments using a BNC cable sold separately Item Specifications Notes Connector type BNC connector Same for both master and slave I O level TTL 0 to 5 V Same for both master and slave Output logic Negative logic falling edge Applies to the master Output hold time Low
119. g 0 1 of range 1 kHz fs 50 kHz 0 3 of reading 0 1 of range 50 mV 100 mV or 200 mV range of an external current sensor s input 0 5 of reading 0 1 of range Direct input of a 50 A input element 0 1 x f 0 2 of reading 0 1 of range 50 kHz lt f lt 100 kHz 0 6 of reading 0 2 of range Direct input of a 50 A input element suoneoyi2ods Hu 0 1 x f 0 2 of reading 0 1 of range 100 kHz lt f lt 200kHz 0 00725 x f 0 125 of reading 0 5 of range Direct input of a 50 A input element 0 05 x f 5 of reading 0 5 of range 200 kHz lt f lt 500 kHz 0 00725 x f 0 125 of reading 0 5 of range Direct input of a 50 A input element Accuracy is not defined 500 kHz lt f s 1 MHz 0 022 x f 8 of reading 1 of range Direct input of a 50 A input element Accuracy is not defined Frequency bandwidth 5 MHz 3 dB typical 5A input element External current sensor input of a 50 A input element IM WT1801 03EN 6 4 Accuracy Power Item Specifications Accuracy at 6 months Conditions Same as the conditions for the voltage and current accuracies Frequency Accuracy reading error measurement range error DC 0 05 of reading 0 1 of range 0 1 Hz lt f lt 10 Hz 0 3 of reading 0 2 of range 10 Hz lt f lt 45 Hz 0 1 of reading 0 2 of range 45 Hz lt f lt 66
120. ge Direct input Section 2 9 Direct input is not possible Voltage wiring VT voltage transformer Section 2 11 Current Measurement Methods When the Voltage Is 1000 V or Less When the Current When the Current Is 50 Aor Less Exceeds 50A When the Current When the Current Is 5AorLess Exceeds 5A When the Voltage Input Exceeds 1000 V element Direct input Section 2 9 Direct input is not possible Shunt type current sensors cannot be used Shunt type current sensor y Section 2 10 Current Clamp type current sensor Section 2 10 wiring voltage output type Clamp type current sensor current output type Section 2 11 Section 2 11 CT current transformer Notes when Replacing Other Power Meters with the WT1800 In three phase three wire systems 3P3W and three phase three wire systems that use a three voltage three current method 3P3W 3V3A the wiring system of the WT1800 may be different from that of another product another digital power meter depending on whether the reference voltage used to measure the line voltage see appendix 2 for details is based on single phase or three phase power To make accurate measurements see the referenced sections in the selection guide above and check the wiring method of the corresponding three phase three wire system WT3000 WT2000 WT1600 WT1000 WT500 The three phase three wire WT230
121. ge measurement cables sections 2 8 to 2 11 Input element 1 Input element 2 Input element 3 Input element 4 Input element 5 Input element 6 External start signal I O connector A Use to perform master and slave synchronized measurement section 4 4 RReceives the external sync signal during high speed data capturing section 4 4 External clock input connector A Receives the synchronization Source signal which determines the measurement period section 4 3 Receives the external PLL Source signal for harmonic measurement section 4 3 wa Z 8 amp efl mat A TAGE A TAGE A TAGE A Dar A qua A gt Age ogy max Terum Tecum Lire a oo max ms A EXT AA EXT EXT Aer AN EXT A EXT fov s fov e sas uv us inv wax iow wis ov s sas H e d g3 somvwux Sov wx sw v wi soon mae ECLA omy a e ER E Pus pus uw Q Q Q Q Q Q e N 2 S SN D N A FET TODORASE I A A A A A e XA TESTI TEI SUC E ESI TESTI ESE t t t t t t Q T1 Q T Q vm m Ti OQ dra Ls Ls LS LS Lg Ls N00 Ip 2 1000 V MAX TO JE CD 1000 v aax ro EN 1000 v Ax ro E 1000 v Ax ro jJ 1600 Vax To amp 1000V MAX TO pori 4d
122. he Voltage Input Terminals sesssssssss 2 10 2 7 Wiring for Accurate Measurements sssssssssssssssseeeeeeeerenn nene 2 12 2 8 Guide for Selecting the Method Used to Measure the Power eeeeees 2 13 A 2 9 Wiring the Circuit under Measurement for Direct Input sse 2 14 2 10 Wiring the Circuit under Measurement When Using Current Sensors 2 17 2 11 Wiring the Circuit under Measurement When Using Voltage and Current Transformers 2 21 AN 2 12 Loading Roll Paper into the Built In Printer Option sene 2 24 Chapter 3 Common Operations 3 1 Key Operation and Functions eeee eerte eterne aaee aa aea tend nennen 3 1 3 2 Entering Values and Strings eicere denn cte nee hone nne tenebre bk n eura 3 3 3 3 Using USB Keyboards and Mouse Devices sse 3 5 3 4 Setting the Menu and Message Languages ssssee ee 3 10 3 5 Synchronizing the CLOCK d 3 11 3 6 Initializing Settirigs eire doin e erri fer teo eie e dee tede 3 13 3 7 Displaying Help e 3 14 Chapter 4 Auxiliary I O A 4 1 Motor Torque Signal and Revolution Signal Input TORQUE SPEED option 4 1 A 4 2 Auxiliary Input AUX1 AUX2 Option eee cece cece ener nnne nnne 4 3 A 4 3 External Clock Input EXT CLK IN
123. hod ForQ var when the current leads the voltage the Q value is displayed as a negative value when the current lags the voltage the Q value is displayed as a positive value The value of Q may be negative because it is calculated from the Q of each element with the signs included IM WT1801 03EN App 3 xipueddy E Appendix 1 Symbols and Determination of Measurement Functions Measurement Functions Used in Harmonic Measurement Option Table 1 4 Measurement Function Methods of Computation and Determination Numbers and Characters in the Parentheses Total Value Total dc 1 k when k 0 when k 1 when k 1 to max No parentheses Voltage U V U dc Ur 0 U k A Ur k Ui k y ut k min max Xp 0 1 B Current I A de 10 k k ky 124 Yt k min Active power P W P dc Ur 0 I 0 P k Ur k l k Ui k i k P P k min A t S VA eeey L Side e Pide S I9 V PIKE Qk s JPG Reactive power Q var hia els v TYPE3 Q dc Q k Ur k lj k Uj k Ir k Q 2 009 Power factor A dc a MK Er t Phase difference 6 k tan S tan 9 Phase difference with U 1 U k The phase difference KE U between U k and U 1 Phase difference with I 1 l k The phase difference o E di between I k and I 1 Impedan
124. input lt terminal 7 i dE D M i D Eden gt t M Input element 2 14 IM WT1801 03EN 2 9 Wiring the Circuit under Measurement for Direct Input The wiring examples shown below are examples of the following wiring systems in which the specified input elements have been wired To wire other input elements substitute the numbers in the figures with the appropriate element numbers Single phase two wire systems 1P2W Input element 1 Single phase three wire system 1P3W and three phase three wire system 3P3W Input elements 1 and 2 Three phase three wire system that uses a three voltage three current method 3P3W 3V3A and three phase four wire system 3P4W Input elements 1 to 3 Note The thick lines on the wiring diagrams are the parts where the current flows Use wires that are suitable for the current levels Wiring Examples of Single Phase Two Wire Systems 1P2W If six input elements are available six single phase two wire systems can be wired For information about deciding which of the wiring systems shown below you should select see section 2 7 SOURCE LOAD SOURCE LOAD Input element 1 Input element 1 U SOURCE ON LOAD SOURCE LOAD AL Near SOURCE LOAD SOURCE LOAD O O Input element 1 Input element 1 l 11 I1 p
125. integrated value of Q 6 4 IM WT1801 03EN 6 3 Displayed Items Harmonic Measurement Option Measurement Functions Determined for Each Input Element Item Symbols and Meanings Voltage V U k rms voltage value of harmonic order k U total rms voltage Current A I K rms current value of harmonic order k I total rms current Active power W P k active power of harmonic order k P total active power Apparent power VA S k apparent power of harmonic orderk S total apparent power Reactive power var Q k reactive power of harmonic order k Q total reactive power Power factor A k power factor of harmonic order k A total power factor Phase difference k phase difference between the voltage and current of harmonic order k total phase difference U k phase difference between harmonic voltage U k and the fundamental wave U 1 GI k phase difference between harmonic current I k and the fundamental wave I 1 Load circuit Z k impedance of the load circuit in relation to harmonic order k impedance Q Load circuit resistance and Rs k resistance of the load circuit in relation to harmonic order k when resistor R inductor L and reactance Q capacitor C are connected in series Xs k reactance of the load circuit in relation to harmonic order k when resistor R inductor L and capacitor C are connected in series Rp K resistance of the load circuit in relation to harmonic
126. ion Input element Wty Apply one set of signals External clock input Master and slave Start and stop sync signal measuring USB mouse lt Built in printer option Prints screen images and numeric data lists AA Internal RAM disk Stores numeric data USB keyboard EJEIEI E EIEJE ES EIBIET ES ES ESESES ERE ES ES EE ER EIER OOOOOOO0 ET CET CT MOOOOOOD OOO ILES ES CILCTES C3 IETEI ETC Setup parameters USB PERIPHERAL interface Screen image data Stored data Numeric data Waveform display data emory device Setup parameters GP IB Ethernet or USB communication n RGB XGA output option Image signal D A output option Measured values are transmitted as analog voltage Numeric data Waveform display data Screen image data Monitor Recorder LEY iL IM WT1801 03EN suoloun y pue sauiewN 3ueuoduio E Chapter 2 2 1 Making Preparations for Measurements Handling Precautions Safety Precautions If you are using this instrument for the first time make sure to read Safety Precautions on pages vii and viii Do Not Remove the Case Do not remove the case from the instrument Some parts of the instrument use high voltages and are extremely dangerous For internal in
127. ion 16 bits Output voltage Each rated value 5 V FS maximum of approx 7 5 V Update interval Same as the WT1800 data update interval Number of outputs 20 channels The output items can be set for each channel Continuous maximum common mode voltage 42 Vpeak or less Relationship between output items and D A See the features guide output voltage 4 8 IM WT1801 03EN 4 6 D A Output and Remote Control D A OUTPUT option Remote Control Through external control you can hold values perform single measurements start stop and reset integration and print A CAUTION Only apply voltages that are within the range of 0 V to 5 V to the remote control input pins Do not short or apply external voltages to the output pins Doing so may damage the WT1800 Item Specifications Input signal EXT START EXT STOP EXT RESET EXT HOLD EXT SINGLE EXT PRINT Output signal INTEG BUSY Input level OVto5V Remote Control I O Circuit Input circuit Output circuit 5V 5 V e 10 kQ A 10 kQ 100 Q d 0 01 T un uF L level 0 V to 1 V L level 0 V to 1 5 V 8 mA H level 4 V to5V H level 2 8 V to 5 V 8 mA Controlling Integration Remotely Apply signals according to the following timing chart Start Stop Reset Start Stop gt lt 10 ms or more EXT START j m 1 mooo ducc 10 ms or more EXT STOP EXT RESET 1sorless 100 ms or less 1s or less 100 ms or less gt lt lt gt
128. ire System 3P3W with VTs and CTs SOURCE R LOAD Input element 1 Input element2 Wiring Example of a Three Phase Three Wire System That Uses a Three Voltage Three Current Method 3P3W 3V3A with VTs and CTs SOURCE LOAD I lu L ER EES FW FU LS pm A cubi A UU At dE n O om D D D CE ecd O Input element 1 Input element 2 Input element 3 Wiring Example of a Three Phase Four Wire System 3P4W with VTs and CTs SOURCE LOAD R 0 m GO7 3 Input element 2 ma Input element 1 Note For details about the relationship between the wiring system and how measured and computed values are determined see appendix 1 Symbols and Determination of Measurement Functions Input element 3 IM WT1801 03EN 2 23 sjueuiaJnseo y 104 suoneuedaag Huye 2 12 Loading Roll Paper into the Built In Printer Option This section explains how to load roll paper into the optional built in printer Printer Roll Paper Only use roll paper specifically made for use with the WT1800 When you first use the printer use the included roll paper When you need a new supply of roll paper contact your nearest YOKOGAWA dealer Part N
129. ith one hexagonal socket wrench 2 Included with models that have a built in printer B5 3 Included with models that have 20 channel D A output and remote control DA IM WT1801 03EN Checking the Package Contents How to Use the CD ROM User s Manuals The CD ROM contains PDF files of the following manuals WT1800 Precision Power Analyzer Features Guide IM WT1801 01EN WT1800 Precision Power Analyzer User s Manual IM WT1801 02EN WT1800 Precision Power Analyzer Communication Interface User s Manual IM WT1801 17EN To view the manuals above you need Adobe Reader 5 0 or later Never play this CD ROM on an audio CD player Doing so may cause loss of hearing or speaker damage due to the high volume sound that may be produced IM WT1801 03EN Checking the Package Contents Optional Accessories Sold separately The following optional accessories are available for purchase separately For information about ordering accessories contact your nearest YOKOGAWA dealer Name Model Min Q ty Notes Part No Measurement lead 758917 1 Two leads in one set Used with the 758922 or 758929 adapter sold separately Length 0 75 m Rated voltage 1000 V Safety terminal adapter set 758923 1 Two pieces in one set Rated voltage 600 V 758931 1 Two pieces in one set Rated voltage 1000 V Alligator clip adapter set 758922 1 Two pieces in one set For use with measurement lead 758917
130. ix 8 List of Initial Settings and Numeric Data Display Order Item Setting Electrical Angle Measurement Off Electrical Angle Offset Offset Value 0 00 Auto Enter Target U1 AUX SET Available on models with the auxiliary input option Aux Name AUX1 AUX2 Scaling 1 0000 1 0000 Unit kW m2 kW m2 Analog Auto Range Off Off Analog Range 20V 20V Linear Scale A 1 000 1 000 Linear Scale B 0 000 0 000 Calculation Point1X 0 000 0 000 Point1Y 0 000 0 000 Point2X 0 000 0 000 Point2Y 0 000 0 000 Line Filter Off UPDATE RATE Update Rate 500ms HOLD Hold Off INTEG Integrator Status Independent Control Integ Set Mode Integ Timer Integ Start Integ End Auto Cal WP Type Setting Element1 to Element6 q mode Setting Element1 to Element6 D A Output Rated Time Reset condition Off Normal 00000 00 00 2011 01 01 00 00 00 2011 01 01 01 00 00 Off Each Charge Discharge Each dc 00001 00 00 Displayed on models with the D A output option ITEM Numeric Item No 1 Function Urms Element 2 Element1 Order Display Frame On FORM Numeric Numeric Form 4 Items ITEM Wave Display On Vertical Zoom Vertical Position U1 to I6 Speed Torque Aux1 Aux2 x1 0 00096 1 Available on models with the motor evaluation function option 2 Available on models with the auxiliary input option IM WT1801 03EN xipueddy E Appendix 8 List of Initial Settings and Numeric Data Display O
131. lick the selection menu item that you want to choose If an item has available options such as ON and OFF click the item to change its setting For menu items that are usually selected using the cursor keys and the SET key clicking on the item that you want to select will confirm your selection and close the dialog box Numeric 4 gt Item No m Functi LL B Click in this area to display a menu for selecting items using the cursor keys and SET 4 Element Clicking the item that you want to select will confirm your selection D Order mE 4 Reset Items c Click in this area to display a selection menu Clicking the item that you want to select will confirm your selection Display Frame 18 Click in this area to change the selected item Orr GN Clearing the Menu To clear the menu click outside of it Specifying Values The following description explains how to specify values for menu items that have a icon next to them When a menu item has two amp icons click the top or bottom half of the menu item to select the corresponding setting To decrease a value rotate the mouse wheel back To increase a value rotate the mouse wheel forward To increase a value move the pointer above the value so that the pointer becomes a z and then click above the value To decrease a value move the pointer below the value so that the pointer becomes a xz and then click below the value To
132. ls with the motor evaluation function option PHIUSI3 E7 App 36 IM WT1801 03EN Appendix 7 USB Keyboard Key Assignments 104 Keyboard US When the Ctrl Key Is Held Down on the When the Soft Keyboard Is Displayed USB Keyboard on the WT1800 When the WT1800 Shift on the When the WT1800 Shift Is On USB Keyboard Shift Is On Execute STORE START STORE SET menu SCALING menu Execute HOLD MOTOR AUX SET menu Execute ELEMENT FILE menu Same as left INTEG menu HRM SET menu Execute IMAGE SAVE IMAGE SAVE menu Execute NULL NULL SET menu Execute STORE STOP Execute STORE RESET xl LINE FILTER menu FREQ FILTER menu MEASURE menu FREQ MEASURE menu Execute NUMERIC OTHERS menu Execute PRINT PRINT menu FORM menu CURSOR menu a o o 3 3 Execute RESET Same as left e jo o 3 3 SHIFT on SHIFT off ITEM menu UPDATE RATE menu WIRING menu Execute WAVE Execute EXT SENSOR SENSOR RATIO menu SYNC SOURCE menu Execute SINGLE Execute CAL N lt x lt cjajojajoj vjoj z zjr x jo st s t u v w x y z 1 2 3 4 5 6 7 8 9 eo o oon jojlNJrxIsI jc jejo 0 0 Enter Execute SET Same as left Enter Same as left Execute SET Same as left Esc Execute ESC Same as left Escape
133. lue of 10 A or rms value of 7 A whichever is less External current sensor input peak value less than or equal to 5 times the range Continuous maximum common mode voltage 50 60 Hz 1000 Vrms Influence of common mode voltage When 1000 Vrms is applied between the input terminal and case with the voltage input terminals shorted the current input terminals open and the external current sensor input terminals shorted 50 60 Hz 0 01 of range or less Reference value for up to 100 kHz maximum rated range rated range x 0 001 x f of range or less For external current sensor input add maximum rated range rated range x 0 0125 x log f x 1000 0 021 of range to the value above 0 0196 or greater The unit of f is KHz The maximum rated range in the equation is 1000 V 50A 5A or 10 V IM WT1801 03EN 6 1 suoneoyi2ods Bu 6 1 Input Item Line filter Specifications Select from off 100 Hz to 100 kHz in steps of 100 Hz 300 kHz and 1 MHz Frequency filter Select from off 100 Hz and 1 kHz A D converter Converts voltage and current inputs simultaneously Resolution 16 bits Conversion rate sampling interval approx 500 ns For the values when displaying harmonics see the sections on harmonic measurement Range switching The range can be set for each input element Auto range feature Range increase When Urms or Irms exceeds 110 of the measuremen
134. ly and turn the power on Select the measurement method Wire the circuit under measurement Getting Started Guide 9 Section 2 2 9 Sections 2 3 and 2 4 e Section 2 8 e Sections 2 9 to 2 11 Read the precautions in sections 2 5 and 2 7 thoroughly before connecting the wires Also if necessary assemble the input terminal adapter that connects to the voltage input terminal see section 2 6 before connecting the wires Common Operations Perform key operations Synchronize the clock Initialize settings Display help Set the Measurement Conditions Basic measurement conditions Harmonic measurement conditions option Motor evaluation conditions option Auxiliary input conditions option Getting Started Guide ee Sections 3 1 to 3 4 ee Section 3 5 ee Section 3 6 ee Section 3 7 User s Manual e Chapter 1 ee Chapter 2 ee Chapter 3 ee Chapter 4 Display Measured Computed Results Measured power value and computations Integrated power watt hour Voltage current waveforms Trends Harmonic measurements option bar graphs vectors Cursor measurement Acquire Data Store data to the internal RAM disk Save data to a USB memory device Print data option Transmit data using D A output option Transmit data through the USB GP IB or Ethernet interface User s Manual ep Chapters 6 and 7 ep Chapter 8 ep Chapter 9 ee Chapter 10 e Chapters 11 and 12 ee Chapter 14 User s M
135. ment period is called the synchronization source The measurement period is automatically determined inside the WT1800 when you specify the synchronization source You can select the synchronization source signal from the options listed below U1 11 U2 12 U3 I3 U4 14 U5 15 U6 I6 Ext Clk external clock and None The available options vary depending on the installed elements For example if the synchronization source for input element 1 is set to 11 an integer multiple of the period of 11 becomes the measurement period By averaging the sampled data in this measurement period the WT1800 computes the measured values for input element 1 such as U1 I1 and P1 Deciding Whether to Use Voltage or Current Input as the Synchronization Source Select input signals with stable input levels and frequencies with little distortion as synchronization sources Correct measured values can only be obtained if the period of the synchronization source signal is detected accurately On the WT1800 display the frequency of the input signal that you have selected as the synchronization source and confirm that the frequency is being measured correctly The most suitable synchronization source is the input signal that is the most stable and that provides accurate measured results For example if a switching power supply is being measured and the voltage waveform distortion is smaller than the current waveform distortion set the synchronization sourc
136. ment accuracy can be minimized by connecting the instrument s current input terminal to the side that is closest to the earth potential of the power supply SOURCE Easily affected Not easily affected P NA U U SOURCE lop SOURCE 0 LOAD l y Ned UP MU U U SOURCE U LOAD SOURCE U LOAD OJ O 4 Lt GN l VA Effects of the Measured Voltage and Current Amplitudes When the measured current is relatively large When the measured current is relatively small Connect the voltage measurement terminal Connect the current measurement terminal between the current measurement between the voltage measurement terminal and terminal and the load the load 0 Ay Iu SOURCE LOAD SOURCE v LOAD souroe O LOAD source LOAD DL 3 Iu Explanation For details on the effects of stray capacitance and the effects of the measured voltage and current amplitudes see appendix 3 How to Make Accurate Measurements 2 12 IM WT1801 03EN 2 8 Guide for Selecting the Method Used to Measure the Power Select the measurement method from the table below according to the amplitude of the measured voltage or current For details about a wiring method see its corresponding section indicated in the table Voltage Measurement Methods When the Volta
137. ment performed on such wiring 4 Pollution Degree applies to the degree of adhesion of a solid liquid or gas that deteriorates withstand voltage or surface resistivity Pollution Degree 2 applies to normal indoor atmospheres with only non conductive pollution 5 Use cables of length 3 m or less 6 Usecables of length 30 m or less IM WT1801 03EN 6 21 suoneoyioods Hu 6 21 13 426 13 o ce e e Q oo e coh oo 090 o0o naiaa odgaasja onjojoojo c3ee c O EE JIS rack mount dimensions 480 1 Spee M 177 20 460 External Dimensions Rear view Fle fal EI P Je Cod OK 32 427 28 9 c g e e e oOo eeaa eoo 009 adlaaladlo ooo coo oojoojoojo o0olnaliaaimeeis EIA rack mount dimensions 481 1 0 4 o 50 50
138. mination QU1 U2 Phase angle between U1 1 and the fundamental voltage of element 2 U2 1 QU1 U3 Phase angle between U1 1 and the fundamental voltage of element 3 U3 1 U1 H Phase angle between U1 1 and the fundamental current of element 1 I1 1 U2 I2 Phase angle between U2 1 and the fundamental current of element 2 I2 1 U3 I3 Phase angle between U3 1 and the fundamental current of element 3 I3 1 EaU1 EaU2 EaU3 EaU4 EaU5 EaU6 Eal1 Eal2 Eal3 Eal4 Eal5 Eal6 Electrical angle Phase angle of U1 to I6 with the falling edge of the signal received through the Z terminal of the motor evaluation function option as the reference Note The numbers 1 2 and 3 used in the equations indicate the case when input elements 1 2 and 3 are set to the wiring system shown in the table App 6 IM WT1801 03EN Appendix 1 Symbols and Determination of Measurement Functions Measurement Functions Used in Delta Computation Option Computed results are determined by substituting all of the sampled data in the table into the equations for voltage U and current I The synchronization source used in delta computation is the same source as the source of the first input element the input element with the smallest number in the wiring unit that is subject to delta computation
139. minator of the Distortion Factor Equation Is the Fundamental Wave Fundamental A k coefficient defined in the applicable standard IEC34 1 1996 Harmonic voltage distortion U k U k factor U Total s u y 100 Uhdf Harmonic current distortion i k I k factor Kota 10 100 Ihdf 96 Harmonic active power P k P k distortion factor ree EI 100 Phdf Total h ic volt lt v otal harmonic voltage 2 2 distortion I uw 0 100 100 Uthd U Total U 1 Total h B t max max otal harmonic curren 2 2 distortion m m o a A 100 ithe Pel Totaly 2 1 T t Ih z ti max max otal harmonic active power distortion PW PW 100 100 Pthd P Total 2 P 1 max max Voltage telephone harmonic factor Uthf 4 Uthf A k U k 2 100 Ithf 1 09 I k 100 Current telephone harmonic factor Ithf 76 U Total 2 m I Total 2 Lh Voltage telephone influence factor Utif Current telephone influence factor Itif TE 1 max Utif sate Eo U k T k coefficient defined in the applicable standard IEEE Std 100 1992 max C9 1 9 k 1 titz _ I Total 2 Harmonic voltage factor hvf 96 Harmonic current factor hcf max 2 hvf 1 _ y X9 100 U Totaly k max 2 hef 5 y 100 Tota 4 k K factor max qa kz1 y Kk k 1 K factor 1 The expression
140. mm 6 20 IM WT1801 03EN 6 20 General Specifications Item Specifications Warm up time Approx 30 minutes Operating environment Temperature 5 C to 40 C Humidity 20 RH to 80 RH No condensation Elevation 2000 m or less Installation location Indoors Storage environment Rated supply voltage Temperature 25 C to 60 C Humidity 20 RH to 80 RH No condensation 100 VAC to 240 VAC Permitted supply voltage range 90 VAC to 264 VAC Rated supply frequency 50 60 Hz Permitted supply voltage frequency range 48 Hz to 63 Hz Maximum power consumption 150 VA when the built in printer is used External dimensions See section 6 21 Approx 426 W x 177 H x 459 D mm When the printer cover is not attached excluding the handle and other protruding parts Weight Approx 15 kg the weight of the main unit with six input elements and all options installed Battery backup Setup parameters and the internal clock are backed up with a lithium battery Safety standards Compliant standard EN61010 1 The overvoltage category installation category is CAT II The measurement category is CAT II 3 Pollution degree 2 Emissions Compliant standards EN61326 1 Class A EN61000 3 2 EN61000 3 3 C tick EN55011 Class A Group1 This product is a Class A for industrial environments product Operation of this product in a residenti
141. mputation it is assumed that i1 i2 i3 0 For the Delta Star computation it is assumed that the center of the delta connection is computed as the center of the star connection The equations for voltage U and current I listed in Symbols and Determination of Measurement Functions IM WT1801 03EN App 7 xipueddy E Appendix 1 Symbols and Determination of Measurement Functions Note uf u2 and u3 represent the sampled voltage data of elements 1 2 and 3 respectively i1 i2 and i3 represent the sampled current data of elements 1 2 and 3 respectively The numbers 1 2 and 3 that are attached to delta computation measurement function symbols have no relation to the element numbers For details on the rms mean dc rmean and ac equations of delta computation mode see page App 1 We recommend that you set the measurement range and scaling conversion ratios 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 Measurement Functions Used in the Motor Evaluation Function Option Measurement Function Methods of Computation and Determination When the input signal from the revolution sensor is DC voltage an analog signal S AX B NULL S scaling factor A slope of the input signal X input voltage
142. n 3P3W gt 3V3A AU1 unmeasured line voltage computed in a three phase three wire system DELTA gt STAR AU1 AU2 AU3 phase voltage computed in a three phase three wire 3V3A system AUX AU1 AU2 AU3 3 STAR gt DELTA AU1 AU2 AU3 line voltage computed in a three phase four wire system AU AU1 AU2 AU3 3 Current A difference Al differential current between i1 and i2 determined through computation 3P3W gt 3V3A Al unmeasured phase current DELTA gt STAR Al neutral line current STAR gt DELTA Al neutral line current Power W difference 3P3W gt 3V3A DELTA gt STAR AP1 AP2 AP3 phase power computed in a three phase three wire 3V3A system AP AP1 AP2 AP3 STAR gt DELTA Waveforms and Trends Item Specifications Waveform display Displays voltage current torque speed AUX1 and AUX2 waveforms for elements 1 to 6 Trend display Displays a line graph of measurement function numeric data trends Number of measurement channels up to 16 Bar Graphs and Vectors Option Item Specifications Bar graph display Displays a bar graph of the amplitude of each harmonic Vector display Displays the phase difference between the fundamental voltage signal and fundamental current signal as a vector 6 6 IM WT1801 03EN 6 4 Accuracy Voltage and Current Item Specifications Accuracy at 6 months Conditions Temperature 23 C x 5 C Humidity 3
143. n i3 n 3 n 0 ZP W 4 Nat Three phase Active power HSFilter u1 n xi1 n u2 n xi2 n u3 n xi3 n four wire N i 3P4W ZP W 4 Not Three phase three wire Active power HSFilter u1 n xi1 n u2 n xi2 n with three voltage N f three current method 3P3W 3V3A Torque 4X Simple average N HSFilter torque n n 0 Speed 1 Not Simple average N HSFilter speed n n 0 Pm See page App 8 Monitor output Pm AUX1 4 Not Simple average N HSFilter aux1 n n 0 AUX2 1 Ma Simple average N HSFilter aux2 n 5 o 1 Itis necessary to set the cutoff frequency of the HS filter to match the frequency of the circuit under measurement 2 This value does not have physical meaning when three phase AC wiring is used Note Inthe above equations u n and i n denote the nth instantaneous voltage value and the nth instantaneous current value respectively nindicates the nth item within the data capturing interval N indicates the number of sampled data items within the data capturing interval HSFilter indicates that the items enclosed in the brackets that follow have passed through an HS Filter low pass filter The HS filter is a second order Butterworth filter When the HS filter is enabled the characteristics of the second order Butterworth filter result in the attenuation averaging of the amplitude of the AC components The response also becomes slower The 16 bit data instantaneous voltage and curr
144. n to turn the ALL indicator off and disable the feature for changing all the input elements or wiring units on the page The above behavior takes place when numeric data is being displayed but a menu is not being displayed Only the input elements or wiring units change The displayed input elements and wiring units vary depending on the number of input elements that are installed in the WT1800 and the selected wiring system ITEM amp ELEMENT Ui ELEMENT OAL IM WT1801 03EN 1 2 Keys Computation MEASURE Key Press this key to display a menu for configuring settings for user defined functions MAX hold user defined events apparent and reactive power equations corrected power equations for selecting the phase difference display format and the sampling frequency and for configuring settings for master and slave synchronized measurement SHIFT MEASURE FREQ MEASURE Key Combination Press this key combination to display a menu for setting the item under frequency measurement However on models with the add on frequency measurement option the frequencies of the voltages or currents of all elements can be measured so this menu is not displayed came merus ave f measure FREQ MEASURE Integrated Power Watt hour INTEG Key Press this key to display a menu for turning independent integration on and off starting stopping and resetting integr
145. n what you are setting Aselection menu appears Acheck box is selected or cleared Anitem is selected Atable of settings is selected Displaying a Selection Menu and Selecting an Item Select OFF or ON User Defined Event Edit Items Event No 1 ON Event Name Evi TRUE True FALSE False Expression Condition Element Z Element 1 Order Total Function Urms OF 0 0000 Range Condition Cilnverse Setting Items in a Table Trend Items Display Element 1 Element 1 Element 1 select a table entry Displays the selection menu After selecting an item with the cursor keys press SET to confirm it eem After moving the cursor to the table press SET E s to select the setting that you want to change Use the cursor keys and the SET key to Element 1 Trend Items amp a o o Fanon M Display STi Element 1 Auto Irms Element 1 MT Auto How to Clear Setup Dialog Boxes Press ESC to clear the setup dialog box from the screen IM WT1801 03EN 3 2 Entering Values and Strings Entering Values Using the Cursor Keys to Enter Values Select the appropriate item using the soft keys and change the value using the cursor keys and the SET key This manual sometimes describes this operation simply a
146. ncorporated n this manual the amp and TM symbols do not accompany their respective registered trademark or trademark names Other company and product names are registered trademarks or trademarks of their respective holders Revisions e 1st Edition February 2011 2nd Edition August 2011 3rd Edition December 2011 3rd Edition December 2011 YMI All Rights Reserved Copyright 2011 Yokogawa Meters amp Instruments Corporation IM WT1801 03EN i Checking the Package Contents Unpack the box and check the contents before operating the instrument If the wrong items have been delivered if items are missing or if there is a problem with the appearance of the items contact your nearest YOKOGAWA dealer WT1800 Check that the product that you received is what you ordered by referring to the model name and suffix code given on the name plate on the left side panel MODEL O SUFFIX M p ep YOKOGAMA 4 Made in Japan Model Suffix Code Description WT1800 one input element model WT1801 01 50A 10 5A WT1800 two input element model WT1802 02 50A 50A 11 5A 50A 20 5A 5A WT1800 three input element model WT1803 03 50A 50A 50A 12 5A 50A 50A 21 5A 5A 50A 30 5A 5A 5A WT1800 four input element model WT1804 04 50A 50A 50A 50A 13 5A 50A 50A 50A 22 5A 5A 50A 50A 31 5A 5A 5A 50A
147. nd AC RLC circuits Harmonics Harmonics refer to all sine waves whose frequency is an integer multiple of the fundamental wave normally a 50 Hz or 60 Hz sinusoidal power line signal except for the fundamental wave itself The input currents that flow through the power rectification circuits phase control circuits and other circuits used in various kinds of electrical equipment generate harmonic currents and voltages in power lines When the fundamental wave and harmonic waves are combined waveforms become distorted and interference sometimes occurs in equipment connected to the power line Terminology The terminology related to harmonics is described below Fundamental wave fundamental component The sine wave with the longest period among the different sine waves contained in a periodic complex wave Or the sine wave that has the fundamental frequency within the components of the complex wave Fundamental frequency The frequency corresponding to the longest period in a periodic complex wave The frequency of the fundamental wave Distorted wave A wave that differs from the fundamental wave Higher harmonic A sine wave with a frequency that is an integer multiple twice or more of the fundamental frequency Harmonic component A waveform component with a frequency that is an integer multiple twice or more of the fundamental frequency Harmonic distortion factor The ratio of the rms value of the specified nt order ha
148. nded and the signal is high in frequency or large in power the effects of the inductance of the shunt type current sensor cable become large In this case use an isolation sensor CT DC CT or clamp to perform measurements Clamp type current sensor WT1800 U e o4 Voltage input terminal LOAD External current sensor input connector In the figures on the following pages the WT1800 s input elements voltage input terminals and external current sensor input connectors are simplified as shown in the following figure VOLTAGE Voltage input Tee terminal O x a 3 External current 9 sensor input o Nanc l connector EXT SSE Glues 9 EXT toa Input element 2 18 IM WT1801 03EN 2 10 Wiring the Circuit under Measurement When Using Current Sensors The following wiring examples are for connecting shunt type current sensors When connecting a clamp type current sensor that outputs voltage substitute shunt type current sensors with clamp type current sensors Clamp type current sens Shunt type current sensor that outputs voltage I YO O EXT O EXT Input element Input element The wiring examples shown below are examples of the following wiring systems in which the specified input elements have been wired To wire other input elements substitute the numbers in the figures with the appropriate eleme
149. ndling Precautions Do not short the secondary side of a VT Doing so may damage it Do not short the secondary side of a CT Doing so may damage it Also follow the VT or CT handling precautions in the manual that comes with the VT or CT that you are using sjueuiaJnseo y 104 suoneuedaag Burjelw B IM WT1801 03EN 2 21 2 11 Wiring the Circuit under Measurement When Using Voltage and Current Transformers Note The thick lines on the wiring diagrams are the parts where the current flows Use wires that are suitable for the current levels Make sure that you have the polarities correct when you make connections If the polarity is reversed the polarity of the measurement current will be reversed and you will not be able to make correct measurements Be especially careful when connecting clamp type current sensors to the circuit under measurement because it is easy to reverse the connection Note that the frequency and phase characteristics of the VT or CT affect the measured data For safety reasons the common terminals of the secondary side of the VT and CT are grounded in the wiring diagrams in this section However the necessity of grounding and the grounding location ground near the VT or CT or ground near the power meter vary depending on the item under measurement To measure the apparent power and power factor more accurately on an unbalanced three phase circuit we recommend that you use a three phase thre
150. ng the Top Menu Right click on the display A menu of the WT1800 front panel keys the top menu appears Selecting an Item from the Top Menu Click the item that you want to select A setup menu that corresponds to the item that you selected appears on the right side of the display The top menu disappears To display an item s submenu click the item To select an item on a submenu click it just as you would to select an item on the top menu Top menu Right click to display the top menu Submenu Submenus appear for items that have them Display ops Numeric Item ops Item Form Cursor Wiring Voltage Ranges Current Ranges Scaling Filters E Averaging Sync Source Update Rate Hold Single ops NULL CAL ops Integ Sampling S E Harmonics Freq Measure Pointer Store P 1U File Image Save Print Motor Aux Settings Utility Help a nm User Defined Function The setup menu that you select using the mouse appears Auto Phase 190 Lead Lag Sync Measure Master Slave Ops is short for operations Note The following keys are not displayed on the top menu ESC RESET and SET 3 7 suonejedo uouiulo B 3 3 Using USB Keyboards and Mouse Devices Setup Menu Operations Same as soft key operations Selecting a Setup Menu Item Click the setup menu item that you want to select If a selection menu appears after you select an item c
151. nimize the effects of power loss on measurement accuracy We will discuss the wiring of the DC power supply SOURCE and a load resistance LOAD below When the Measured Current Is Relatively Large Connect the voltage measurement circuit between the current measurement circuit and the load The current measurement circuit measures the sum of i and iv iL is the current flowing through the load of the circuit under measurement and iv is the current flowing through the voltage measurement circuit Because the current flowing through the circuit under measurement is iL only iv reduces measurement accuracy The input resistance of the voltage measurement circuit of the WT1800 is approximately 2 MQ If the input voltage is 1000 V iv is approximately 0 5 mA 1000 V 2 MQ If the load current i is 5 A or more load resistance is 200 O or less the effect of iv on the measurement accuracy is 0 01 or less If the input voltage is 100 V and the current is 5 A iy 0 05 mA 100 V 2 MQ so the effect of iv on the measurement accuracy is 0 001 0 05 mA 5 A SOURCE aa source db LOAD gt LENT LOAD WT1800 As a reference the relationships between the voltages and currents that produce effects of 0 0196 0 001 and 0 0001 are shown in the figure below ae effect ork effect 1000 800 600 400 Smaller effect 200 net effect 4 t I 1 i 1 0 5 10 15
152. nly Opening the case is dangerous because some areas inside the instrument have high voltages Ground the Instrument before Making External Connections Securely connect the protective grounding before connecting to the item under measurement or to an external control unit Before touching a circuit turn off its power and check that it has no voltage viii IM WT1801 03EN Safety Precautions Wiring Power meters can measure large voltages and currents directly If you use a voltage transformer or a current transformer together with this power meter you can measure even larger voltages or currents When you are measuring a large voltage or current the power capacity of the item under measurement becomes large If you do not connect the cables correctly an overvoltage or overcurrent may be generated in the circuit under measurement This may lead to not only damage to the power meter and the item under measurement but electric shock and fire as well Be careful when you connect the cables and be sure to check the following points Before you begin measuring before you turn the item under measurement on check that Cables have been connected to the power meter s input terminals correctly Check that there are no voltage measurement cables that have been connected to the current input terminals Check that there are no current measurement cables that have been connected to the voltage input terminals If you are measuring multipha
153. nput elements that are installed Scaling Set the current sensor conversion ratio VT ratio CT ratio and power coefficient in the range of 0 0001 to 99999 9999 when applying the external current sensor VT or CT output to the instrument Averaging Using one of the following methods perform averaging on the normal measurement items voltage U current I power P apparent power S or reactive power Q Power factor A and phase difference angle are determined from the averaged P and S values Select either exponential averages or moving averages Exponential average Select the attenuation constant from a value between 2 and 64 Moving average Select the average count from a value between 8 and 64 Harmonic measurement Only exponential averaging is valid Data update rate Response time Select from 50 ms 100 ms 200 ms 500 ms 1s 2 s 5 s 10 s and 20 s Data update rate x 2 or less only during numeric display Hold Holds the data display Single Executes a single measurement while measurements are held Zero level compensation Null Performs zero level compensation Null compensation range 10 of range You can configure the null setting individually for each of the following input signals Each input element s voltage and current Rotating speed and torque AUX1 and AUX2 6 10 IM WT1801 03EN 6 5 Features Frequency Measurement Item Specifications DUT Up t
154. nt numbers Single phase two wire system 1P2W Input element 1 Single phase three wire system 1P3W and three phase three wire system 3P3W Input elements 1 and 2 Three phase three wire system that uses a three voltage three current method 3P3W 3V3A and three phase four wire system 3P4W Input elements 1 to 3 Wiring Example of a Single Phase Two Wire System 1P2W with a Shunt Type Current Sensor SOURCE LOAD ff Shunt type current sensor EXT Input element 1 Wiring Example of a Single Phase Three Wire System 1P3W with Shunt Type Current Sensors SOURCE LOAD H o EXT Input element 1 Input element 2 IM WT1801 03EN 2 19 sjueuiaJnseo y 104 suoneuedaag Burjelw B 2 10 Wiring the Circuit under Measurement When Using Current Sensors Wiring Example of a Three Phase Three Wire System 3P3W with Shunt Type Current Sensors SOURCE l LOAD H Om C EXT O EXT Input element 1 Input element 2 Wiring Example of a Three Phase Three Wire System That Uses a Three Voltage Three Current Method 3P3W 3V3A with Shunt Type Current Sensors SOURCE i LOAD Input element 1 Input element 2 Input element 3 Wiring Example of a Three Phase Four Wire System 3P4W with Shunt Type Current Sensors S
155. nts are superposed on the current waveform such as in the aforementioned inverter example turn the frequency filter on to stably detect zero crossings Use of the filter is appropriate if it makes the measured frequency accurate and more stable Because the frequency filter can be used to facilitate the detection of the synchronization source s zero crossings it is sometimes called the synchronization source filter or the zero crossing filter With the frequency filter on o When Measuring a Signal That Has No Zero Crossings Because of a DC Offset Superposed on the AC Signal The measured values may be unstable if the period of the AC signal cannot be detected accurately Change the synchronization source to a signal that allows for more stable detection of the period switch from voltage to current or from current to voltage The frequency detection circuit is AC coupled Even with AC signals in which there are no zero crossings because of an offset the period can be detected if the AC amplitude is greater than or equal to the detection level of the frequency measurement circuit see the conditions listed under Accuracy under Frequency Measurement in section 6 5 Features With this feature the measurement period is set to an integer multiple of the period of the AC signal Data update interval Data update interval a Signal Measurement period AC coupling 5 IRF RIPR When Measuring
156. numeric data display press these keys to Switch between pages Press SHIFT PAGE A to move to the first page and SHIFT PAGE V to move to the last page egeo CO ee HELP Key Press this key to display and hide the help window which explains various features IM WT1801 03EN suonoun pue sauiewN 3ueuoduio BH 1 3 Screen Display Display Example When Measuring Power Numeric display Setting indicators Scaling Averaging Page bar indicates the currently displayed page Line filter and the page numbers of displayable pages Storage status Peak Frequency filter Key lock indicator and storage over range Integration NULL indicator count Indicator setting status Settings and measured values lr of PLL sources 1 and 2 option Normal Mode Peak ver Ter Integ Reset In Store Stop 15 manm Scaling Line Filter Time Jey 41 000 Hz nanu AVG FreqFilter Timer 1 00 09 PLyb 41 000 Hz 2 EI amp change items peu F 3 Crest factor setting Element 1 U1 300V mum I 2A sure Sync Sret Input element setup parameters ud for details see the following T figure Element 3 Hei U3 300V aura 13 1 0A AUTO Sync Src I3 Element 4 HH 101 20 v V E la 1 18874 A s z u4 300v am o PAP m P 1 8 Element 5 HeH JO w BODAS Element 6 HRW 1 e Eal
157. o Yes Error Pole No ee S Electrical Angle No cmm R R E R EE No No No No No O Yes Yes Electrical Angle Correction No No Scaling 1 1 M JN Yes AuoRage 1 MN NoYes Yes Yes Yes Rage No No Yes X Ye X Yes Yes Linear Scale AB No No JNo No No X Yes Linear Scale Calculate Execute No No No No No Yes lLineFilter n MM No No No No Yes User Defined Function Conditions No Yes No o No Yes Max Hold ON OFF No No Yes Yes Yes Yes User Defined Event Conditions No Yes No No No _ Ys Yes App 50 IM WT1801 03EN Appendix 9 Limitations on Modifying Settings and Operations Operation Changing settings or executing features Integration Status Storage State Computation S Q Formula Waveform Display Nu Numeric Save Item Settings Change Drive e Auto Print ON Ye Print images Yes eric Save e Directo Date Time Type Menu Language or Display Other Features Manual Ca SS d Yes The setting can be changed or the feature can be performed No The setting cannot be changed or the feature cannot be performed 1 Only in Integ Sync mode 2 Storage can be started in Single Shot mode IM WT1801 03EN App 51 xipueddy E Appendix 10 Limitations on the Features during High Speed Data
158. o the period cannot be detected if the AC amplitude is small For information about the detectable frequency levels see the conditions listed under Accuracy under Frequency Measurement in section 6 5 Features If the period cannot be detected the entire data update interval becomes the measurement period and the sampled data of the entire period is averaged Data update interval Measurement period Because of the reasons described above the measured voltage and current values may be unstable If this happens lower the data update rate so that more periods of the input signal fit within the data update interval IM WT1801 03EN App 27 xipueddy E Appendix 5 Setting the Measurement Period When the Waveform of the Synchronization Source Is Distorted Change the synchronization source to a signal that allows for more stable detection of the period switch from voltage to current or from current to voltage Also turn on the frequency filter The WT1800 reduces the effects of noise by using hysteresis when it detects zero crossings If the synchronization source is distorted or harmonics and noise are superposed on the signal to a level exceeding this hysteresis harmonic components will cause zero crossing detection to occur frequently and the zero crossing of the fundamental frequency will not be detected stably Consequently the measured voltage and current may be unstable When high frequency compone
159. o a current A D converter The current signal that is applied to the current input terminal is converted to a voltage signal by a shunt Then it is sent to the current A D converter in the same fashion as the voltage signal from the current sensor App 54 IM WT1801 03EN Appendix 10 Block Diagram The voltage signal that is applied to the voltage A D converter and current A D converter is converted to digital values at an interval of approximately 0 5 us These digital values are isolated by the isolator and passed to the DSP In the DSP the measured values are derived based on the digital values The measured values are then transmitted to the CPU Various computed values are determined from the measured values The measured values and computed values are displayed and transmitted as D A and communication output as measurement functions of normal measurement The harmonic measurement functions option are derived in the following manner The voltage signal sent to the A D converter is converted to digital values at a sampling frequency that is determined by the PLL source signal The DSP derives the measured value of each harmonic measurement item by performing an FFT on the converted digital values IM WT1801 03EN App 55 xipueddy H
160. o three of the voltage or current frequencies applied to an input element can be selected and measured On models with the add on frequency measurement option the voltage and current frequencies of all input elements can be measured Measurement method Reciprocal method Measurement range Data Update Rate Measurement Range 50 ms 45 Hz lt f lt 1 MHz 100 ms 25 Hz lt f lt 1 MHz 200 ms 12 5 Hz lt f lt 500 kHz 500 ms 5 Hz lt f lt 200 kHz 1s 2 5 Hz lt f lt 100 kHz 2s 1 25 Hz lt f lt 50 kHz 5s 0 5 Hz lt f lt 20 kHz 10s 0 25 Hz lt f lt 10 kHz 20s 0 15 Hz lt f lt 5 kHz Accuracy 0 06 of reading 0 1 mHz when the input signal level is 30 or more 60 or more when the crest factor is set to 6 of the measurement range The equation above holds true given that The input signal is less than or equal to two times the frequency lower limit written above The input signal is less than or equal to two times the frequency lower limit written above The range is 10 mA for the 5 A element The range is 1 A for the 50 A element The 100 Hz frequency filter is on for frequencies between 0 15 Hz and 100 Hz and the 1 kHz frequency filter is on for frequencies between 100 Hz and 1 kHz Number of Displayed Digits 5 99999 Display Resolution Minimum frequency 0 0001 Hz resolution Frequency measurement Select from off 100 Hz and 1 kHz filter Integration Item Specifi
161. oll Paper After you load roll paper and close the cover or after you print measured data to cut the roll paper pull the paper up against the top of the cover Note Ifyou open the printer cover immediately after you cut the roll paper repeat steps 5 to 7 on pages 2 25 and 2 26 After you load roll paper and close the cover check whether the paper feeds correctly If the roll paper does not feed straight repeat steps 1 to 7 on pages 2 25 and 2 26 Ifyou load the roll paper backwards the paper may not feed properly or data may not be printed This is because the print head doesn t come into contact with the thermal side of the paper Load the roll paper into the holder in the proper orientation IM WT1801 03EN 2 27 sjueuiaJnseo y 104 suoneuedaag Burjelw Chapter 3 Common Operations 3 1 Key Operation and Functions Key Operation How to Use Setup Menus That Appear When Keys Are Pressed The operation after you press a key varies depending on the key that you press Numeric 4 Menu Measure Menu Line Filter Menu Numeric Form Menu Numeric 4 Measure Line Filter Numeric Form Item No JS hes peret ru A Mi ser Defini i B m A Function e Cutoff F 3 iatis H BR 3 Function E Exp User Defined py N SIUS Event C Cutoff Ums 0 5kHz Element 5 4 met a Formula e Cutoff 16 Items angu Element 4 gt Order ER ON e Cutoff Matrix 0 5kHz 4 R
162. onnect the power cord to a three prong power outlet with a protective earth terminal Do not use an ungrounded extension cord Doing so renders the protective features of the instrument ineffective Use an outlet that complies with the power cord provided and securely connect the protective grounding If such an outlet is unavailable and protective grounding cannot be furnished do not use the instrument Connecting the Power Cord 1 2 3 Confirm that the instrument s power switch is off Connect the instrument s power cord to the power inlet on the rear panel Connect the other end of the cord to an outlet that meets the conditions below Use a three prong power outlet with a protective earth terminal Item Specifications Rated supply voltage 100 VAC to 120 VAC 200 VAC to 240 VAC Permitted supply voltage range 90 VAC to 132 VAC 180 VAC to 264 VAC Rated supply frequency 50 60 Hz Permitted supply frequency range 48 Hz to 63 Hz Maximum power consumption 150 VA when the printer is being used The instrument can use a 100 V or a 200 V power supply The maximum voltage rating differs according to the type of power cord Before you use the instrument check that the voltage supplied to it is less than or equal to the maximum rated voltage of the power cord provided with it see page v for the maximum voltage rating Three prong outlet Power cord accessory IM WT1801 03EN 2 5
163. option The ranges selected with these keys are valid when the AUTO key described below is not illuminated when the fixed range feature is being used AUTO Key Press AUTO to activate the auto range feature When this feature is active the AUTO key illuminates The auto range feature automatically sets the voltage current and external current sensor ranges depending on the amplitude of the received electrical signal Press AUTO again to activate the fixed range feature The AUTO key turns off EXT SENSOR Key Press EXT SENSOR to illuminate the EXT SENSOR key While the WT1800 is in this state press the current range s A and V keys to select the external current sensor range that is used when the WT1800 measures the output from the current sensor Press EXT SENSOR again to turn off the EXT SENSOR key and enable the selecting of the current range for direct input SHIFT EXT SENSOR SENSOR RATIO Key Combination Press this key combination to display a menu for setting the external current sensor conversion ratio for each input element These conversion ratios are used to convert current sensor output to current CONFIG Key Press this key to display a menu for setting the valid measurement ranges for the voltage range current range or external current sensor range option You can also set the measurement range to Switch to when a peak over range occurs SHIFT CONFIG DIRECT MEASURE Key Combination Press this key combination to display a
164. or EIA Rack mount kit 751535 J4 For JIS Asummary of the procedure for mounting the instrument on a rack is given below For detailed instructions see the manual that is included with the rack mount kit 1 Remove the handles from both sides of the instrument 2 Remove the four feet from the bottom of the instrument 3 Remove the two plastic rivets and the four seals covering the rack mount attachment holes on each side of the instrument near the front 4 Place seals over the feet and handle attachment holes 5 Attach the rack mount kit to the instrument 6 Mount the instrument on a rack When mounting the instrument on a rack allow at least 20 mm of space around the inlet and vent holes to prevent internal heating Make sure to provide adequate support from the bottom of the instrument The support should not block the inlet and vent holes 2 4 IM WT1801 03EN 2 3 Connecting the Power Supply Before Connecting the Power Supply To prevent electric shock and damage to the instrument follow the warnings below A Make sure that the power supply voltage matches the instrument s rated supply voltage and that it does not exceed the maximum voltage range specified for the power cord Confirm that the instrument s power switch is off before you connect the power cord To prevent fire and electric shock only use a power cord supplied by YOKOGAWA To avoid electric shock be sure to ground the instrument C
165. or Simultaneous Dual Harmonic Measurement Option Measurement Function User Defined Function IK Left Parameter in or Parameter in Right Parameter in Element Wiring Unit Harmonic Order Fundamental Wave Harmonics Example UK E1 OR3 IK E1 OR3 E1 to E6 E7 to E9 OR2 to OR100 500 Up to OR500 Up to OR500 PK PK E1 OR3 Up to OR500 SK SK E1 OR3 Up to OR500 QK QK E1 0R3 Up to OR500 LAMBDAK LAMBDAK E1 OR3 Up to OR500 PHIK PHIK E1 OR3 Up to OR500 UPHI UPHI E1 OR3 IPHKE1 OR3 Up to OR500 Up to OR500 ZK E1 OR3 Up to OR100 RSK E1 OR3 Up to OR100 Up to OR100 XSK E1 OR3 RPK E1 OR3 Up to OR100 XPK E1 OR3 Up to OR100 IHDF UHDF E1 OR3 IHDF E1 OR3 Up to OR500 Up to OR500 PHDF PHDF E1 OR3 Up to OR500 UTHD UTHD E1 ITHD ITHD E1 PTHD PTHD E1 UTHF UTHF E1 ITHF ITHF E1 UTIF UTIF E1 ITIF ITIF E1 HVF HVF E1 HCF HCF E1 KFACT KFACT E1 EAU EAU E1 EAI EAI E1 PLLFRQ1 PLLFRQ1 PLLFRQ2 PLLFRQ2 PHIU1U2 PHIU1U2 E7 PHIU1U3 PHIU1U3 E7 PHIU1I1 PHIU1I1 E7 PHIU2I2 PHIU2I2 E7 PHIUSI3 Available on mode
166. otes and cautions in this manual are categorized using the following symbols Improper handling or use can lead to injury to the user or damage to the A instrument This symbol appears on the instrument to indicate that the user must refer to the user s manual for special instructions The same symbol appears in the corresponding place in the user s manual to identify those instructions In the manual the symbol is used in conjunction with the word WARNING or CAUTION ATANIN e Calls attention to actions or conditions that could cause serious or fatal injury to the user and precautions that can be taken to prevent such occurrences CAUTION Calls attention to actions or conditions that could cause light injury to the user or cause damage to the instrument or user s data and precautions that can be taken to prevent such occurrences Note Calls attention to information that is important for proper operation of the instrument IM WT1801 03EN xi l Workflow The figure below is provided to familiarize the first time user with the workflow of WT1800 operation For a description of an item see the relevant section or chapter In addition to the sections and chapters that are referenced in the figure below this manual also contains safety precautions for handling and wiring the instrument Be sure to observe the precautions Installation and Circuit Wiring Install the WT1800 Connect the power supp
167. our nearest YOKOGAWA dealer for repairs t may take a few seconds for the startup screen to appear To Make Accurate Measurements After turning on the power wait at least 30 minutes to allow the instrument to warm up After the instrument warms up execute zero level compensation see the user s manual Operations Performed When the Power Is Turned Off After the power is turned off the instrument stores the setup parameters in its memory before shutting down The same is true when the power cord is disconnected from the outlet The next time the power is turned on the instrument powers up using the stored setup parameters Note The instrument stores the settings using an internal lithium battery When the lithium battery voltage falls below a specified value you will no longer be able to store setup parameters and a message error 901 will appear on the screen when you turn on the power If this message appears frequently you need to replace the battery soon Do not try to replace the battery yourself Contact your nearest YOKOGAWA dealer to have the battery replaced 2 6 IM WT1801 03EN 2 5 Precautions When Wiring the Circuit under Measurement To prevent electric shock and damage to the instrument follow the warnings below A Ground the instrument before connecting measurement cables The power cord that comes with the instrument is a three prong cord Insert the power cord into a grounded three prong outl
168. outer case The shielded case of the voltage measurement circuit is connected to the positive and negative voltage input terminals and the shielded case of the current measurement circuit is connected to the positive and negative current input terminals Because the outer case is insulated from the shielded cases there is stray capacitance which is expressed as Cs Cs is approximately 40 pF The current generated by stray capacitance Cs causes errors Shielded case of the voltage measurement circuit Outer case Grounding Shielded case of the current measurement circuit As an example we will consider the case when the outer case and one side of the power supply are grounded In this case there are two conceivable current flows iL and ics iL is the load current and ics is the current that flows through the stray capacitance i flows through the current measurement circuit then through the load and returns to the power supply shown with a dotted line ics flows through the current measurement circuit the stray capacitance and the earth ground of the outer case and then returns to the power supply shown with a dot dash line Therefore the current measurement circuit ends up measuring the sum of iL and ics even if the objective is just to measure iL Only ics reduces measurement accuracy If the voltage applied to Cs is Vcs common mode voltage ics can be found using the equation shown below Because the phase
169. ow The crest factor and form factor are used to define the tendency of an AC waveform Maximum value Rms value Crest factor Rms value Mean value Form factor Vector Display of Alternating Current In general instantaneous voltage and current values are expressed using the equations listed below Voltage u Umsinwt Current i Imsin wt o The time offset between the voltage and current is called the phase difference and is the phase angle The time offset is mainly caused by the load that the power is supplied to In general the phase difference is zero when the load is purely resistive The current lags the voltage when the load is inductive is coiled The current leads the voltage when the load is capacitive When the current lags the voltage When the current leads the voltage u wt uw 2m wt A vector display is used to clearly convey the magnitude and phase relationships between the voltage and current A positive phase angle is represented by a counterclockwise angle with respect to the vertical axis Normally a dot is placed above the symbol representing a quantity to explicitly indicate that it is a vector The magnitude of a vector represents the rms value When the current lags the voltage When the current leads the voltage A ut IM WT1801 03EN App 13 xipueddy H Appendix 2 Power Basics Power harmonics and AC RLC circuits Three Phase AC Wiring Generally three phase AC pow
170. printing section 4 6 1 2 IM WT1801 03EN 1 1 Front Panel Rear Panel and Top Panel Top Panel Component Names and Functions Inlet holes section 2 2 There are also inlet holes on the bottom panel Vent holes section 2 2 Handles J O 0 05 2509 950 o909Q 990909 Vent holes section 2 2 1 3 IM WT1801 03EN 1 2 Keys Measurement Conditions WIRING Key Press this key to display the menu for selecting the wiring system setting the efficiency equation selecting the independent input element configuration and setting the delta computation option ELEMENT Key Press this key to select the input element that you want to select the measurement range for The selected input element changes each time that you press ELEMENT When you select the wiring system input elements that are assigned to the same wiring unit are selected at the same time SHIFT ELEMENT ALL Key Combination Press this key combination to collectively set the voltage range current range or external current sensor range option of all the input elements that satisfy the following conditions The input elements are the same type 5 Aor 50A input elements The valid measurement range settings are the same Press ELEMENT again to configure settings for individual elements A and V Keys Use these keys to select the voltage range current range or external current sensor range
171. r messages are the same for all languages For more information about error messages see section 5 2 English Japanese Chinese German 1 This features covers firmware versions 2 01 or later of the WT1800 Note 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 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 3 10 IM WT1801 03EN 3 5 Synchronizing the Clock This section explains how to set the WT1800 clock which is used to generate timestamps for measured data and files When the WT1800 is shipped from the factory it has a set date and time You must synchronize the clock before you start measurements UTILITY System Config Menu Press UTILITY the System Config soft key and then the Date Time soft key to display the following Screen Date Time Display OFF UJ Turn the date and time display on or off Type IManual SNTP Date 2010 7 10 7 14 Time 10 38 00 Set the setup type Set the date year month day Set the time hour minute second Set E Setting the Setup Type Type If you select Manual set the Date and Time v
172. rder Item Setting FORM Wave Format Single Time div 5ms Trigger Settings Mode Auto Source U1 Slope Rise Level 0 096 Display Setting Interpolate Line Graticule Grid Bi Scale Value On Wave Label Off Wave Mapping Mode Auto User Setting U1 0 11 0 U2 1 I2 1 U3 2 I3 2 U4 3 14 3 U5 4 15 4 U6 5 16 5 Speed 0 Torque 0 Aux1 0 2 Aux2 0 ITEM Trend Display On T1 to T8 Function T1 Urms T2 Irms T3 P T4 S T5 Q T6 A T7 T8 FreqU T9 to T16 Urms Element Element1 Order Scaling Auto Upper Scale 1 000E 02 Lower Scale 1 000E 02 FORM Trend Trend Format Single Time div 3s Display Setting Same as those listed under FORM Wave ITEM Bar displayed on models with the option Bar Item No Function Element Scale Mode harmonic measurement option or simultaneous dual harmonic measurement 1 2 3 U P Elementi Element1 Element1 Fixed Fixed Fixed FORM Bar displayed on models with the harmonic measurement option or simultaneous dual harmonic measurement option Format Start Order End Order Single 1 100 ITEM Vector displayed on models with the harmonic measurement option or simultaneous dual harmonic measurement option Vector Item No Object U Mag Mag 1 2 2A Element1 1 000 1 000 1 000 1 000 FORM Vector displayed on models with the harmonic measurement option or simultaneous dual harmonic measurement option Format Nume
173. rement mode Note When the same setting is used for both normal measurement and high speed data capturing that setting cannot be specified when high speed data capturing has been started Start IM WT1801 03EN App 53 xipueddy H Appendix 11 Block Diagram Block Diagram uC EXT al TORQUE SPEED Z Input elements 2 to 6 Input element 1 cpu poe O E EE ERASMI ne e aaae ROR E a a I Voltage input circuit i ecce ee mE E Voltage measurement D uite iege iate eed 8 4 inch LCD oltage measurement input circuit 1 vw e O O AID Line filter O 1 1 ac T MM E oe M ney f Frequency measurement alata Zero crossing i Frequency detection i O i 1 filter i l Input peak detection circuit Peak I RGB output detection option n a a E DERE OU SEES mtm RE crue cU E UTI Fateor da ies CUOFEES CE Ac ee CA Current input circuit l _ Built in printer OO AID I option uu O T Line filter Zero crossing Isolator Frequency detection Isolator DA filter I Peak option detection A USB port Motor input circuit option PC D P
174. rent input terminals Also when the voltage of the circuit under measurement is being applied to the external current sensor input terminals do not touch the current input terminals Doing so is dangerous because the terminals are electrically connected inside the instrument When using an external voltage transformer VT or current transformer CT make sure that it has enough dielectric strength for the voltage U being measured 2U 1000 V recommended Also make sure that the secondary side of the CT does not become an open circuit while the power is being applied If this happens high voltage will appear at the secondary side of the CT making it extremely dangerous When using an external current sensor make sure to use a sensor that comes in a case The conductive parts and the case should be insulated and the sensor should have enough dielectric strength for the voltage of the circuit under measurement Using a bare sensor is dangerous because there is a high probability that you might accidentally touch it When using a shunt type current sensor as an external current sensor turn off the circuit under measurement before you connect the sensor Connecting or removing the sensor while the power is on is dangerous When using a clamp type current sensor as an external current sensor make sure that you understand the voltage of the circuit under measurement and the specifications and handling of the clamp type sensor and then confirm
175. ric Single ON 1 Available on models with the motor evaluation function option 2 Available on models with the auxiliary input option App 44 IM WT1801 03EN Appendix 8 List of Initial Settings and Numeric Data Display Order Item Setting FORM High speed data capturing displayed on models with the high speed data capturing option Capt Count Infinite Control Settings U I Measuring Mode Setting Each U1 to I6 rms HS Filter Off Cutoff 100Hz Trigger Settings Same as those listed under FORM Wave External Sync Off Record to File Off File Settings Auto CSV Conversion On Item Settings U1 I1 P1 Auto Naming Numbering ITEM High speed data capturing displayed on models with the high speed data capturing option Column Num 4 Column No 1 Element 2 Element1 Display Peak Over Status Off Display Frame Same as those listed under ITEM Numeric CURSOR Wave Wave Cursor Off Wave C1 Trace U1 Wave C2x Trace n Cursor Path Max Wave C1 Position 160 Wave C2x Position 640 Linkage Off CURSOR Trend Trend Cursor Off Trend C1 Trace T1 Trend C2x Trace T2 Trend C1 Position 160 Trend C2x Position 1440 Linkage Off CURSOR Bar displayed on models with the harmonic measurement option or simultaneous dual harmonic measurement option Bar Cursor Off Bar C1 1 order Bar C2x 15 order Linkage Off IM WT1801 03EN App 45 xipueddy E Appendix 8 List of Initial Settings and Nume
176. ric Data Display Order Item Setting CURSOR Wave Wave Cursor Off Wave C1 Trace U1 Wave C2x Trace 11 Cursor Path Max Wave C1 Position 160 Wave C2x Position 640 Linkage Off CURSOR Trend Trend Cursor Off Trend C1 Trace T1 Trend C2x Trace T2 Trend C1 Position 160 Trend C2x Position 1440 Linkage Off CURSOR Bar displayed on models with the harmonic measurement option or simultaneous dual harmonic measurement option Bar Cursor Off Bar C1 1 order Bar C2x 15 order Linkage Off STORE START STOP RESET Store Status Off STORE SET Control Settings Store Mode Manual Store Count 100 Interval 00 00 00 Item Settings Store Items Selected Items Items Element1 Urms Irms P S Q A FreqU Freql File Settings Auto CSV Conversion On Auto Naming Numbering FILE Auto Naming Numbering IMAGE SAVE Format BMP Color Off Auto Naming Numbering PRINT MENU Available on models with the printer option Format Screen Auto Print Settings Print Mode Interval Print Count Infinite Print Interval 00 00 10 Print at Start On NULL Null Off NULL SET Target Element All Selected Items U1 to U6 11 to I6 Speed Torque Aux1 Aux2 KEY LOCK Off 1 Available on models with the motor evaluation function option 2 Available on models with the auxiliary input option 3 This setting is initialized when an RST command is received through the communication interface App 46 IM WT1801 03EN Appendix 8 Lis
177. rminals do not touch the external current sensor input terminals Doing so is dangerous because the terminals are electrically connected inside the instrument When connecting a measurement cable from an external current sensor to an external current sensor input connector remove the cables connected to the current input terminals Also when the voltage of the circuit under measurement is being applied to the external current sensor input terminals do not touch the current input terminals Doing so is dangerous because the terminals are electrically connected inside the instrument The terminal is a binding post and the screws are M6 Either wind the wire around the screw or pass the crimping terminal through the screw axis and then tighten firmly with the terminal knob A CAUTION Confirm that no foreign materials are caught between the current input terminal and the crimping terminal Periodically confirm that the current input terminal is not loose and that there are no foreign materials caught between the current input terminal and the crimping terminal In the figures on the following pages the WT1800 s input elements voltage input terminals and current input terminals are simplified as shown in the following figure al VOLTAGE Voltage input lt 9 i F terminal C Qa Tusce 3o od 61 The voltage input terminal and current input terminal of input i element 1 are labeled as U1 and I1 respectively Current
178. rmined see appendix 1 Item Symbols and Meanings Voltage V Urms true rms value Umn rectified mean value calibrated to the rms value Udc simple average Urmn rectified mean value Uac AC component Current A Irms true rms value Imn rectified mean value calibrated to the rms value Idc simple average Irmn rectified mean value lac AC component Active power W Apparent power VA Reactive power var Power factor Phase difference e o o vu Frequency Hz fU FreqU voltage frequency fl Freql current frequency You can simultaneously measure three frequencies from the frequencies fU and fl of all the installed elements On models with the add on frequency measurement option the fU and fl of all elements can be measured simultaneously For signals that are not selected no data is displayed Voltage max and min V U pk maximum voltage U pk minimum voltage Current max and min A l pk maximum current I pk minimum current Power max and min W P pk maximum power P pk minimum power Crest factor peak to rms ratio CfU voltage crest factor Cfl current crest factor Corrected power W Integration Pc Applicable standards IEC76 1 1976 IEC76 1 1993 Time integration time WP sum of positive and negative watt hours WP sum of positive P consumed watt hours WP sum of negative P watt hours ret
179. rmonic contained in the distorted wave to the rms value of the fundamental wave or all signals Harmonic order The integer ratio of the harmonic frequency with respect to the fundamental frequency Total harmonic distortion The ratio of the rms value of all harmonics to the rms value of the fundamental wave or all signals Interference Caused by Harmonics Some of the effects of harmonics on electrical devices and equipment are explained in the list below Synchronization capacitors and series reactors Harmonic current reduces circuit impedance This causes excessive current flow which can result in vibration humming overheat or burnout Cables Harmonic current flow through the neutral line of a three phase four wire system will cause the neutral line to overheat Voltage transformers Harmonics cause magnetostrictive noise in the iron core and increase iron and copper loss Breakers and fuses Excessive harmonic current can cause erroneous operation and blow fuses Communication lines The electromagnetic induction caused by harmonics creates noise voltage Controllers Harmonic distortion of control signals can lead to erroneous operation Audio visual equipment Harmonics can cause degradation of performance and service life noise related video flickering and damaged parts IM WT1801 03EN App 17 xipueddy H Appendix 2 Power Basics Power harmonics and AC RLC circuits AC RLC Circuits Resistance The c
180. rnal clock signal or to a voltage or current applied to an input element Trigger slope Select from rising falling and rising and falling Trigger level When the trigger source is set to the voltage or current applied to an input element the trigger level can be set to a value that is within the range defined by the middle of the screen 100 to the top and bottom edges of the screen Resolution 0 1 When the trigger source is Ext Clk external clock TTL level suoneoyi2ods Hu Time axis zoom feature None 6 13 Data Storage Feature Item Specifications Storage Numeric data is stored to the internal memory or to an external USB storage medium Maximum file size 1GB Storage interval 50 ms when waveforms are turned off to 99 hours 59 minutes 59 seconds 6 14 File Feature Item Specifications Saving Setup parameters waveform display data numeric data and screen image data can be saved to a storage medium Loading Saved setup parameters can be loaded from the storage medium IM WT1801 03EN 6 17 6 15 Auxiliary I O Section External Start Signal I O Section To Apply the Master Slave Synchronization Signal during Normal Measurement Item Specifications Connector type BNC connector Same for both master and slave 1 0 level TTL Same for both master and slave Output logic Negative logic falling edge Applies to the master Output hold time Low level 50
181. rque 60 When the unit of speed is min 1 or rpm the unit of torque is Nem and the scaling factor is 1 the unit of motor output Pm is W e Scaling factor IM WT1801 03EN Appendix 1 Symbols and Determination of Measurement Functions Measurement Methods of Computation and Determination Function 4 U 1 Eau tan Tia Ur 1 real part of the fundamental voltage Uj 1 imaginary part of the fundamental voltage Electrical B offset angle a 1 o 1 B Eal tan I0 Ir 1 real part of the fundamental current lj 1 imaginary part of the fundamental current B offset Use the efficiency equation and the user defined functions to set the motor efficiency and total efficiency Measurement Functions for Auxiliary Input Option Measurement Methods of Computation and Determination Function S AX B NULL S scaling factor AUX1 A slope of the external signal X average value of the external signal s input voltage AVG AUX input1 n B offset NULL null value S AX B NULL S scaling factor AUX2 A slope of the external signal X average value of the external signal s input voltage AVG AUX input2 n B offset NULL null value Note AUX_input1 n and AUX input2 n denote the instantaneous auxiliary input ndenotes the n measurement period The measurement period is determined by the synchronization Source setting AVG denotes the simple average of
182. s Irms Umn Imn Udc Idc Umn Irms and Urmn Irmn TYPE3 Reactive power Q var TYPE1 TYPE2 s A S P S is 1 for a lead phase and 1 for a lag phase TYPE3 max alk k min Q k Ur k lj k Uj k Ir k Ur k and Ir k are the real number components of U k and I k Uj k and Ij k are the imaginary components of U k and I k Valid only when harmonics are being measured correctly Power factor A P Phase difference 6 Ss cos 2 S The phase angle can be switched between lead D lag G display and 360 display Voltage frequency fU FreqU Hz Current frequency fl Freql Hz The voltage frequency fU and current frequency fl are measured by detecting the zero crossing points You can simultaneously measure three frequencies from the frequencies fU and fl of all the installed elements On models with the add on frequency measurement option the fU and fl of all elements can be measured simultaneously Maximum voltage U pk V The maximum u n for every data update Minimum voltage U pk V The minimum u n for every data update Maximum current pk A The maximum i n for every data update Minimum current I pk A The minimum i n for every data update Maximum power P pk W The maximum u n i n for every data update Minimum power P pk W The minimum u n i n for every data up
183. s using the cursor keys Note Some items that you can set using the cursor keys are reset to their default values when you press the RESET key Entering Character Strings Use the keyboard that appears on the screen to enter character strings such as file names and comments Use the cursor keys and the SET key to operate the keyboard and enter a character string How to Operate the Keyboard 1 After bringing up the keyboard use the cursor keys to move the cursor to the character that you want to enter 2 Press SET to enter the character Ifa character string has already been entered use the arrow soft keys lt and gt to move the cursor to the position you want to insert characters into To switch between uppercase and lowercase letters move the cursor to CAPS on the keyboard and then press SET e To delete the previous character press the Back Space soft key To delete all the characters press the All Clear soft key 3 Repeat steps 1 and 2 to enter all the characters in the string Select x on the keyboard or press the History soft key to display a list of character strings that you have entered previously Use the cursor keys to select a character string and press SET to enter the selected character string e Select sa on the keyboard to display a list of preset character strings The following operands and equations which are used with user defined functions are included as preset character strings ABS
184. s IStorageState 1 State Ai Print Harmonics Computation Stop Comp or Timeup or Error Wing MM M M Formula o Yes X No Element Independent No No No AMeasue Type INO No No es Jem pne ne Element ALL Voltage or current range No No Yes Yes Natlage or curent Avie Renge MEN a Yes Direct Current Input or External No Current Sensor jSensorRaio INO INO No No Mo es VT CTISF Scaling No o No o NoYes ConfigVYConfig No 1 No No o o es CrestFactor MM M MM No MM IN Sync Source NO M MM No NoYes Line Fitr MM o No No NoYes O Freq Fiter Mw M MM o Mo fes Update Rate MM Mm MM No jo MM k Average NINO INO NO M Ys PLLSource MM vo NO No NoYes MiMaxOrder M vo INO o o es hdFomua NO M MM M MM s k Element Settings No No No No NoYes O Scaling NINO MM o Mo es SeneType MN INO MM M_M s AuoRane M o Yes Yes Yes Yes Range No M Yves es X es X j Ye LinearScale NB No INO INO o o fes Linear Scale Calculate Execute No No No No No Pes Line Fitr MM o No j No Nes O Moor No w M MM NoYes Pulse Range UpperlLower No No No o No es Torque Puse NO INO o o o Pes Torque Pulse Rated Freg No No No o No Yes Pusen Sc Y Yes N
185. s example set the synchronization source of input element 1 to U1 or 11 and set the synchronization source of input elements 2 and 3 to U2 or I2 U3 or I3 In this case AC signals of different frequencies are measured If the synchronization source of all input elements is set to the same signal the measurement period of either the input signal or the output signal will not be an integer multiple of the signal Single phase AC power Connect to input element 1 Three phase AC power Connect to input elements 2 and 3 using a three phase three wire system AC power U2 and I2 AC power U1 and I1 AC power U3 and I3 Power transformer Synchronization Source Setup Example Input element 1 U1 or 11 Input element 2 U2 or 12 U3 or I3 Input element 3 Note The measurement period for determining the numeric data of the peak voltage or peak current is the entire span of the data update interval regardless of the measurement period settings discussed Therefore the measurement period for the measurement functions that are determined using 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 above Fordetails on the measurement period for measurement functions related to harmonic measurement see the features guide IM WT1801 03EN App 31 xipueddy H Appendix 6 User Defined Function Operands
186. se power check that there are no mistakes in the phase wiring Cables have been connected to the power supply and the item under measurement correctly Check that there are no short circuits between terminals and between connected cables The cables are connected firmly to the current input terminals There are no problems with the current input terminals and the crimping terminals such as the presence of foreign substances During measurement never touch the terminals and the connected cables when the item under measurement is on check that There no problems with the input terminals and the crimping terminals such as the presence of foreign substances The input terminals are not abnormally hot The cables are connected firmly to the input terminals The terminal connections may become loose over time If this happens heat may be generated due to changes in contact resistance If you are going to take measurements using the same setup for a long time periodically check that the cables are firmly connected to the terminals Be sure to turn both the power meter and the item under measurement off before you check the connections After measuring immediately after you turn the item under measurement off After you measure a large voltage or current power may remain for some time in the item under measurement even after you turn it off This remaining power may lead to electric shock so do not touch the input terminals imme
187. spection and adjustment contact your nearest YOKOGAWA dealer Unplug If Abnormal Behavior Occurs If you notice smoke or unusual odors coming from the instrument immediately turn off the power and unplug the power cord Also turn off the power to any circuits under measurement that are connected to the input terminals Then contact your nearest YOKOGAWA dealer Do Not Damage the Power Cord Nothing should be placed on top of the power cord The power cord should also be kept away from any heat sources When unplugging the power cord from the outlet never pull by the cord itself Be sure to hold and pull by the plug If the power cord is damaged purchase a replacement with the same part number as the one indicated on page v General Handling Precautions Do Not Place Objects on Top of the Instrument Never stack the instrument or place other instruments or any objects containing water on top of it Doing so may cause the instrument to malfunction Keep Electrically Charged Objects Away from the Instrument Keep electrically charged objects away from the input terminals They may damage the internal circuitry Do Not Damage the LCD Because it is very easy to damage the LCD do not allow any sharp objects near it Also the LCD should not be exposed to vibration or mechanical shock During Extended Periods of Non Use Turn off the power to the circuit under measurement and the instrument and remove the power cord from the outlet IM W
188. st order and all harmonic components 2nd order to the upper limit of harmonic analysis The DC component can also be included 3 Total harmonic values are determined from all harmonic components the 2nd order to the upper limit of harmonic analysis according to the equations on App 5 4 The expression may vary depending on the definitions in the standard For details see the corresponding standard Measurement Functions that Indicate Fundamental Voltage and Current Phase Differences between Input Elements These measurement functions indicate the phase differences between the fundamental voltage U 1 of the smallest numbered input element in a wiring unit and the fundamental voltages U 1 or currents I 1 of other input elements The following table indicates the measurement functions for a wiring unit that combines elements 1 2 and 3 Item Symbols and Meanings Phase angle U1 U2 U1 U2 phase angle between the fundamental voltage of element 1 which is expressed as U1 1 and the fundamental voltage of element 2 which is expressed as U2 1 Phase angle U1 U3 U1 U3 phase angle between U1 1 and the fundamental voltage of element 3 U3 1 Phase angle U1 I1 U1 I1 phase angle between U1 1 and the fundamental current of element 1 11 1 Phase angle U2 12 U2 I2 phase angle between U2 1 and the fundamental current of element 2 12 1 Phase angle U3 I3 U3 I3 phase angle between U3 1 and
189. t TORQUE SPEED option SPEED 20V MAX Revolution Signal Input Connector SPEED Apply a revolution sensor output signal a DC voltage analog signal or pulse signal that is proportional to the motor s rotating speed that meets the following specifications DC Voltage Analog input Item Specifications Connector type Isolated BNC connector Input range 1V 2V 5V 10V 20V Effective input range Input resistance Maximum allowable input Continuous maximum common mode voltage 0 to 110 of the measurement range Approx 1 MO 22 V 42 Vpeak or less Pulse Input Item Specifications Connector type Frequency range Amplitude input range Detection level Pulse width Input resistance Continuous maximum common mode voltage Isolated BNC connector 2 Hz to 1 MHz 12 Vpeak H level approx 2 V or more L level approx 0 8 V or less 500 ns or more Approx 1 MO 42 Vpeak or less Terminal Used for Analog Input Apply analog input to terminal A Terminal Used for Pulse Input If you do not need to detect the revolution direction of a revolution signal SPEED apply pulse input to terminal A f you need to detect the revolution direction apply phase A and phase B of a rotary encoder to terminals A and B respectively If you need to measure the electrical angle apply phase Z of a rotary encoder to terminal Z 4 2 IM WT1801 03EN 4 2 Auxiliary Input AU
190. t of Initial Settings and Numeric Data Display Order Item Setting UTILITY Remote Control GP IB Address 1 Network Time Out 900s System Config Date Time Display On Type Manual Language Menu Language ENG Message Language ENG LCD Auto Off Off Auto Off Time 5min Brightness 7 Color Settings Graph Color Default Grid Intensity 4 Base Color Blue USB Keyboard English Preference Resolution 5digits Freq Display at Frequency Low Error Motor Display at Pulse Freq Low Error Decimal Point for CSV File Period Menu Font Size Large Crest Factor CF3 Network TCP IP DHCP 2 On DNS 2 Auto FTP Server User Name anonymous Time Out seconds 900 Net Drive Login Name anonymous FTP Passive Off Time Out seconds 15 SNTP Time Out seconds 3 Adjust at Power On Off Time Difference From GMT Hour 9 Minute 0 D A Output Available on models with the D A output option Ch Function Element 2 Order Range Mode 1 Urms Element 1 Fixed 2 Irms Element 1 Fixed 3 P Element 1 Fixed 4 S Element 1 Fixed 5 Q Element 1 Fixed 6 Element 1 Fixed 7 o Element 1 Fixed 8 fU Element 1 Fixed 9 fl Element 1 Fixed 10 to 20 None Element 1 Fixed Selftest Test Item Memory xipueddy E 1 This setting is not affected when the WT 1800 is initialized when you press UTILITY and then the Initialize Settings soft key 2 ltems that are not loaded when a setup parameter file is loaded FIL
191. t option to display a menu for configuring the auxiliary input feature scame MOTOR AUX SET LET SET IM WT1801 03EN 1 2 Keys Displaying the Measured Results NUMERIC Key Press this key to display numeric data When you are displaying numeric data you can press ITEM which is described later in this section to display a menu for changing the displayed items When you are displaying numeric data you can press FORM which is described later in this section to display a menu for changing the display format WAVE Key Press this key to display waveforms When you are displaying waveforms you can press ITEM which is described later in this section to display a menu for selecting and zooming in on the displayed waveforms When you are displaying waveforms you can press FORM which is described later in this section to display a menu for configuring settings such as the time axis of the displayed waveforms the triggers for displaying waveforms on the screen the number of divisions of the waveform screen and the mapping of waveforms to parts of the divided screen OTHERS Key Press this key to display a menu for selecting the trend bar graph vector split displays and high speed data capturing 1 On models with the harmonic measurement option or simultaneous dual harmonic measurement option 2 On models with the high speed data capturing option INPUT INFO
192. t range When the peak value of the input signal exceeds approximately 33096 approximately 66096 when the crest factor is set to 6 of the range Range decrease The range is decreased when all the following conditions are met The measured Urms or Irms value is less than or equal to 3096 of the range The measured Upk or Ipk value is less than or equal to 30096 approximately 60096 when the crest factor is set to 6 of the lower range The measured Urms or Irms value is less than or equal to 105 of the lower range the range to decrease to 6 2 Display Item Specifications Display 8 4 inch color TFT LCD Resolution of the entire screen 1024 x 768 dots H x V Display update rate Same as the data update rate However 1 When only the numeric display is in use and the data update rate is 50 ms 100 ms or 200 ms the display update rate is a value in the range of 200 ms to 500 ms the rate varies depending on the number of displayed items 2 When a display other than the numeric display including the Custom display is in use and the data update rate is 50 ms 100 ms 200 ms or 500 ms the display update rate is 1 s Relative to the total number of pixels 0 00296 of the LCD screen may be defective IM WT1801 03EN 6 3 Displayed Items Numeric Display Measurement Functions Determined for Each Input Element For details about how the measurement function values are computed and dete
193. tart Start output signal p 395 Output hold time External Start Signal Input Circuit and Timing Chart 5V 1000 Start input signal AM Zz V Minimum pulse width I Start input signal l N l Input delay Measurement start Trigger occurrence 4 6 IM WT1801 03EN 4 5 RGB Output RGB OUT XGA option A CAUTION Only connect the WT1800 to a monitor after turning both the WT1800 and the monitor off Donotshort the VIDEO OUT terminal or apply an external voltage to it Doing so may damage the WT1800 RGB Output Terminal 6 1 O H 11 090 050 oxo 5 074 15 VIDEO QUT 10 XGA D Sub 15 pin receptacle You can use RGB output to display the WT1800 screen on a monitor Any multisync monitor that supports XGA can be connected Item Specifications Connector type D sub 15 pin Output format Analog RGB output Output resolution XGA output 1024 x 768 dots approx 60 Hz Vsync Pin No Signal Specifications 1 Red 0 7 Vp p 2 Green 0 7 Vp p 3 Blue 0 7 Vp p 4 Z 5 6 GND 7 GND 8 GND 9 10 GND 11 12 13 Horizontal sync signal Approx 36 4 kHz TTL positive logic 14 Vertical sync signal Approx 60 Hz TTL positive logic 15 Connecting to a Monitor 1 Turn off the WT1800 and the monitor 2 Connect the WT1800 and the monitor using an analog RGB cable
194. that there are no dangers such as shock hazards For safety reasons when using the instrument after mounting it on a rack furnish a switch for turning off the circuit under measurement from the front side of the rack For safety reasons after you connect the measurement cables use the included screws to attach the current input protection cover screw tightening torque 0 6 Nem Make sure that the conductive parts do not protrude from the protection cover IM WT1801 03EN 2 7 sjueuiaJnseo y 104 suoneuedaag Huye N H 2 5 Precautions When Wiring the Circuit under Measurement To make the protective features effective before applying the voltage or current from the circuit under measurement check that The power cord provided with the instrument is being used to connect to the power supply and that the instrument is grounded The instrument is turned on e The current input protection cover provided with the instrument is attached When the instrument is turned on do not apply a signal that exceeds the following values to the voltage or current input terminals When the instrument is turned off turn the circuit under measurement off For information about other input terminals see the specifications in chapter 6 Instantaneous maximum allowable input within 20 ms Voltage input Peak value of 4 kV or rms value of 2 kV whichever is less Current input Direct input 5 A input elements Peak value of 30 A or rms
195. the fundamental current of element 3 13 1 EaU1 to EaU6 x 2 N where 6 is the phase angle of the fundamental wave of U1 to I6 with the rising edge of the Eal1 to Eal6 signal received through the Z terminal of the motor evaluation function option as the reference N is the number of poles that have been specified for the motor evaluation function IM WT1801 03EN 6 5 suoneo2yi2ods 6 3 Displayed Items Measurement Functions 2 Functions Determined for Each Wiring Unit ZA ZB and ZC Item Symbols and Meanings Voltage V U2 1 rms voltage of harmonic order 1 U total rms voltage Current A 12 1 rms current of harmonic order 1 IZ total rms current Active power W P2 1 active power of harmonic order 1 P2 total active power Apparent power VA S2 1 apparent power of harmonic order 1 Sz total apparent power Reactive power var Q2 1 reactive power of harmonic order 1 Q2 total reactive power Power factor A2 1 power factor of harmonic order 1 AX total power factor The total value is determined according to the equation on page App 4 from the fundamental wave 1st order and all harmonic components 2nd order to the upper limit of harmonic analysis The DC component can also be included Delta Computation Option Item Delta Symbols and Meanings Computation Setting Voltage V difference AUT differential voltage between u1 and u2 determined through computatio
196. the item in brackets determined over the data measurement interval The data measurement interval is determined by the synchronization source setting Measurement Functions for High Speed Data Capturing Option Measurement Methods of Computation and Determination Function U V t rms 1 True rms value X HSFilter u n N no mean Rectified mean value calibrated to the rms value T 1 N 1 Xr HSFilter u n 20 M Ju I rmean 4 Rectified mean value N Y HSFilter Ju n n 0 dc 4 N Simple average N HSFilter u n n 0 Continued on next page IM WT1801 03EN App 9 xipueddy H Appendix 1 Symbols and Determination of Measurement Functions Measurement Methods of Computation and Determination Function I A 1 rms 4 Ni True rms value H E HSFilter i n n 0 mean Rectified mean value calibrated to the rms value T E x HSFilter i n za We i li rmean 4 Rectified mean value N HSFilter i n n 0 dc 4X Simple average N HSFilter i n P W 1 Active power N HSFilter u n xi n n 0 ZU V rms 4 Nz Three phase True rms value i 24 24 2 md N 3 HSFilter u1 n 2 u2 n u3 n 3 3P4W mean Rectified mean value calibrated to the rms value T 1 N 1 2A XN 3 HSFilter u1 n u2 n u3 n 3 rmean 4X Rectified mean value N 3 HSFilter u1 n u2 n u3 n 3 n 0 dc 1 N Simple average
197. umber B9316FX Specifications Heat sensitive paper 10 m Minimum Quantity 10 rolls Handling Roll Paper The roll paper is made of heat sensitive paper that changes color thermochemically Please read the following information carefully Storage Precautions When in use the heat sensitive paper changes color gradually at temperatures of approximately 70 C or higher The paper can be affected by heat humidity light and chemicals whether something has been recorded on it or not As such please follow the guidelines listed below Store the paper in a cool dry and dark place Usethe paper as quickly as possible after you break its protective seal e If you attach a plastic film that contains plasticizing material such as vinyl chloride film or cellophane tape to the paper for a long time the recorded sections will fade due to the effect of the plasticizing material Use a holder made of polypropylene to store the roll paper When pasting the record paper to another material do not use paste that contains organic solvents such as alcohol or ether Doing so will change the paper s color We recommend that you make copies of the recordings if you intend to store them for a long period of time Because of the nature of heat sensitive paper the recorded sections may fade Handling Precautions Use genuine YOKOGAWA supplied roll paper f you touch the roll paper with sweaty hands there is a chance that you will leave fing
198. uonoun pue sauiewN 3ueuoduio BH 1 2 Keys UPDATE RATE Key Press this key to display a menu for selecting the period data update interval at which sampled data which is used to produce numeric data measured values such as voltage current and power is acquired HOLD Key Press HOLD to illuminate the HOLD key stop data measurement and display operations per data update interval and hold the numeric data display Press HOLD again to turn the HOLD key off and enable the updating of the numeric data display SINGLE Key While the numeric data is held press SINGLE to measure data only once at the set data update interval and then hold the numeric data co mee Harmonic Measurement Option Motor Evaluation Option and Auxiliary Input Option oe SET Key Press this key on models with the harmonic measurement option to display a menu for setting the PLL source the measured harmonic orders and the distortion factor equation Press this key on models with the simultaneous dual harmonic measurement option to display a menu for configuring the input element groups and setting the PLL source the measured harmonic orders and the distortion factor equation for each group cess MOTOR AUX SET Key Combination Press this key combination on models with the motor evaluation function option to display a menu for configuring the motor evaluation function Press this key combination on models with the auxiliary inpu
199. urned to the power supply q sum of positive and negative ampere hours q sum of positive ampere hours q sum of negative ampere hours WS volt ampere hours WQ var hours By using the current mode setting you can select to integrate the ampere hours using Irms Imn Idc Irmn or lac IM WT1801 03EN 6 3 suoneoyioods Hu 6 3 Displayed Items Measurement Functions 2 Functions Determined for Each Wiring Unit ZA 2B and 2C For details about how function values are computed and determined see appendix 1 Item Symbols and Meanings Voltage V Urmsz true rms value Umn rectified mean value calibrated to the rms value Udc2 simple average Urmn2 rectified mean value Uac AC component Current A Irmsz true rms value Imn2 rectified mean value calibrated to the rms value Idc2 simple average Irmnz rectified mean value lac2 AC component Active power W P Apparent power VA Sz Reactive power var Qz Power factor AX Phase difference o Corrected power W Pc Applicable standards IEC76 1 1976 IEC76 1 1993 Integration WP2 sum of positive and negative watt hours WP 2z sum of positive P consumed watt hours WP 2 sum of negative P watt hours returned to the power supply qz sum of positive and negative ampere hours q 2 sum of positive ampere hours q 2 sum of negative ampere hours WS 2 integrated value of S WQ
200. urrent i when an AC voltage whose instantaneous value u Umsinwt is applied to load resistance R O is expressed by the equation below Im denotes the maximum current Um i sinwt Imsinut R Expressed using rms values the equation is U R There is no phase difference between the current flowing through a resistive circuit and the voltage u TST h Inductance The current i when an AC voltage whose instantaneous value u Umsinwt is applied to a coil load of inductance L H is expressed by the equation below TT wt Imsin 2 jee a rem x is Expressed using rms values the equation is U Xi XL is called inductive reactance and is defined as X ux The unit of inductive reactance is Q Inductance works to counter current changes increase or decrease and causes the current to lag the T e PAAY Capacitance The current i when an AC voltage whose instantaneous value u Umsinwt is applied to a capacitive load C F is expressed by the equation below T wt Imsin 2 on pee Um i g sin Expressed using rms values the equation is U Xc Xc is called capacitive reactance and is defined as Xc 1 wC The unit of capacitive reactance is O When the polarity of the voltage changes the largest charging current with the same polarity as the voltage flows through the capacitor When the voltage decreases discharge current with the opposite polarity o
201. v U T 01 N SOURCE N t LOAD T s Atte U3 U2 28 l I3 Nt Input element 1 Input element2 Input element 3 U1 and 11 U2 and 12 U3 and 13 Note For details about the relationship between the wiring system and how measured and computed values are determined see appendix 1 Symbols and Determination of Measurement Functions 2 16 IM WT1801 03EN 2 10 Wiring the Circuit under Measurement When Using Current Sensors To prevent electric shock and damage to the instrument follow the warnings given in section 2 5 Precautions When Wiring the Circuit under Measurement If the maximum current of the circuit under measurement exceeds the maximum range of the input elements you can measure the current of the circuit under measurement by connecting an external current sensor to the external current sensor input connector 5Ainput elements When the maximum current exceeds 5 Arms 50Ainput elements When the maximum current exceeds 50 Arms Current Sensor Output Type f you are using a shunt type current sensor or a clamp type current sensor that outputs voltage as the external current sensor see the wiring examples in this section f you are using a clamp type current sensor that outputs current see section 2 11 Connecting to the Input Terminal External Current Sensor Input Terminal Connect an external current sensor cable with a BNC connector B9284LK sold separately to an
202. value of 15 A whichever is less 50 A input elements Peak value of 450 A or rms value of 300 A whichever is less External current sensor input Peak value less than or equal to 10 times the range Instantaneous maximum allowable input 1 s or less Voltage input Peak value of 3 kV or rms value of 1 5 kV whichever is less Current input Direct input 5 A input elements Peak value of 10 Aor rms value of 7 A whichever is less 50 A input elements Peak value of 150 Aor rms value of 55 A whichever is less External current sensor input Peak value less than or equal to 10 times the range Continuous maximum allowable input Voltage input Peak value of 2 kV or rms value of 1 1 kV whichever is less Current input Direct input 5 A input elements Peak value of 10 Aor rms value of 7 A whichever is less 50 A input elements Peak value of 150 Aor rms value of 55 A whichever is less External current sensor input Peak value less than or equal to 5 times the range 2 8 IM WT1801 03EN 2 5 Precautions When Wiring the Circuit under Measurement CAUTION Use measurement cables with dielectric strengths and current capacities that are appropriate for the voltage or current being measured Example When making measurements on a current of 20 A use copper wires that have a conductive cross sectional area of 4 mm or greater The act of connecting measuring cables may cause radio interference in which case users will be require
203. varies depending on the definitions in the standard For more details see the standard IEC34 1 1996 max U k k min Note 2 U Total I Total P Total Pik k min Yu k min The minimum harmonic order is denoted by min The upper limit of harmonic analysis is denoted by max max is either an automatically determined value or the specified maximum measured harmonic order whichever is smaller k denotes a harmonic order r denotes the real part and j denotes the imaginary part IM WT1801 03EN App 5 xipueddy E Appendix 1 Symbols and Determination of Measurement Functions Table 3 4 Measurement Function Methods of Computation and Determination Wiring system Single Phase Three Phase E uad ian Three Phase ANI Wi Four Wire 3P4AW Three Wire 1P3W Three Wire 3P3W Method 3V3A our Wire Ux V U1 U2 2 U1 U2 U3 3 5 IZ A 1 12 2 11 12 413 3 E PZ W P1 P2 P1 P2 P3 z Sx VA uL af Px QE W TYPE3 2 PZ QE Qz var TYPE3 2 Q1 Q2 Q1 Q2 Q3 AZ lt gt Note The numbers 1 2 and 3 used in the equations for UZ I2 P S and Q2 indicate the case when input elements 1 2 and 3 are set to the wiring system shown in the table Only the total value and the fundamental wave 15t harmonic are computed for Table 4 4 Measurement Function Methods of Computation and Deter
204. xecute IMAGE SAVE IMAGE SAVE menu Execute INPUT INFO Execute U I MODE Execute PAGE UP Execute PAGE TOP Execute PAGE UP Execute PAGE TOP End ELEMENT ALL Page Down Execute PAGE DOWN Execute PAGE END Execute PAGE DOWN Execute PAGE END Move cursor to the right Move cursor to Same as left the right Same as left Move cursor to the right Same as left Move cursor to the left Move cursor to Same as left the left Same as left Move cursor to the left Same as left Move cursor down Same as left Move cursor down Same as left Move cursor up Numeric Keypad Same as left Move cursor up Same as left When the Ctrl Key Is Held Down on When the Soft Keyboard Is Displayed the USB Keyboard on the WT1800 When the WT1800 Shift on the Shift on the Shift Is On USB Keyboard USB Keyboard Num Lock I I Same as left Same as left Same as left Same as left Execute SET Same as left Same as left Execute SET Move cursor down Same as left Move cursor down Enter 1 2 3 4 Execute PAGE DOWN Move cursor to the left Execute PAGE END Same as left Move cursor to the left Execute PAGE DOWN Move cursor to the left Move cursor to the right Same as left Move cursor to the right Move cursor to the right Move cursor up Same as left Move cursor up
205. y When using the 758931 Safety Terminal Adapter assemble it according to the following procedure Assembling the Safety Terminal Adapter 1 Remove approximately 10 mm of the covering from the end of the cable and pass the cable through the internal insulator Internal insulator Attachable cable Cable Covering max diameter 3 9 mm Core wire max diameter 1 8 mm mum 10mm 2 Insertthe tip of the cable into the plug Fasten the cable in place using the hexagonal wrench Hexagonal wrench Plug 4 JL i Sp Cable tip Insert the hexagonal wrench into the plug and tighten 3 Insert the plug into the internal insulator P 4 Attach the external cover Make sure that the cover does not come off Cover Note LLLLL L S S S S Once you attach the cover it is difficult to disassemble the safety terminal adapter Use care when attaching the cover Below is an illustration of the adapter after it has been assembled 2 10 IM WT1801 03EN 2 6 Assembling the Adapters for the Voltage Input Terminals Explanation Wire the adapters that come with the WT1800 or the adapters and various sensors that are sold separately as shown below Wiring When Measuring Voltage Voltage under
206. yboards You can connect one keyboard and one mouse to the WT1800 Do not connect and disconnect multiple USB devices repetitively Wait for at least 10 seconds after you connect or remove one USB device before you connect or remove another USB device Do not remove USB cables during the time from when the WT 1800 is turned on until key operation becomes available approximately 20 seconds IM WT1801 03EN 3 5 suone4edo uowwog B 3 3 Using USB Keyboards and Mouse Devices Setting the USB Keyboard Language UTILITY System Config Menu Press UTILITY and then the System Config soft key to display the following menu System Config E Date Time 4 Language LCD USB Keyboard Set the USB Keyboard Language Japanese lt Preference Crest Factor CF6 Entering File Names Comments and Other Items When a keyboard is displayed on the screen you can enter file names comments and other items using the USB keyboard Entering Values from a USB Keyboard You can use the USB keyboard to enter values for settings in which the o mark is displayed on the menu 1 key or 8 on the numeric keypad The value increases key or 2 on the numeric keypad The value decreases key or 6 on the numeric keypad The digit cursor moves to the next digit on the right lt key or 4 on the numeric keypad The digit cursor moves to the next digit on the left Using a USB Mouse You c

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