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PM3000ACE User Manual

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1. log scale 1 0 ie 1 10 100 1000 In addition the total accumulated memory time should not exceed the duration of the observation period Memory time is a concept defined by the standard The power measurement technique is used in which the in phase and quadrature components of current are measured to define the size of the voltage disturbance Connect and power up the load under test to the CH1 inputs Selecting this option causes the display to report the MEMORY TIME This will accumulate in value over the observation period for the voltage fluctuations detected At the end of the test period pressing the DATADUMP key will automatically cause a print out of the total memory time elapsed time and the number of occurrences for each size of voltage fluctuation AU U from 0 1 to gt 3 40 bins in all These can then be checked according to the graph for IEC555 3 to assess compliance For more guidance refer to our Application Note 104 FLICKERMETER Flickermeter is the preferred method of measuring flicker to EN60555 61000 3 3 and is suited to measuring flicker where the load is either changing regularly or varying irregularly The IEC 868 Flickermeter simulates the Lamp Eye Brain Chain the basis upon which an acceptable level of disturbance to the supply caused by a piece of equipment was decided PAGE 5 6 PM3000A USER MANUAL THE FUNCTION MENUS 5 6 5 5 6 6 The Flicker
2. PAGE 8 8 PM3000A USER MANUAL INTERFACE SET UP If voltage has been selected the display will show RPM INPUT gt 10V full scale lt Use the SELECT and ENTER keys to choose the appropriate DC voltage range for the input to the RPM Channel 10V or 1V The display will then show RPM INPUT gt 1 000 per Volt lt Use the digit keys to enter the scaling for the RPM input and press ENTER The display will then show If pulse has been selected for the RPM INPUT the display will show HIGH FREQUENCY gt disabled lt Use the SELECT and ENTER keys to enable the high frequency mode if required The display will then show RPM INPUT gt 1 000 pulses rev lt Use the digit keys to enter the scaling for the speed input in pulses per revolution of the motor and press ENTER With 303W or 304W selected and W selected for display press the 3 channel key The display will now show XXXX Nm Xxxx rpm XXXx W The top line shows torque and speed The bottom line shows mechanical power and motor efficiency horsepower and ft lb would be used if originally selected Pressing the DISPLAY key when W is selected will toggle the display between the mechanical data presentation auxiliary inputs and the electrical data presentation CH1 CH2 CH3 inputs Efficiency is calculated from the formula Power Out 100 x Power In Where Power Ou
3. Using the SELECT and ENTER keys choose the required time from gt 30 lt gt 60 ms lt gt 300 ms lt gt 1 s lt gt 5 s lt or gt 18 ms 65 s lt If the latter option is chosen use the digit keys to enter the required time in ms e g for 9 sec enter 9000 then press ENTER PAGE 9 3 DATA LOG PM3000A USER MANUAL The next display will then show EXTERNAL TRIGGER LOG gt disabled lt Analysis can be triggered via the front panel START key or the rear trigger input Use the SELECT and ENTER keys to choose gt disabled lt or gt enabled lt for the rear panel trigger input as required The display will then show DATALOG SET MANUAL RANGE In data log mode the autoranging feature is disabled and the user must set the correct volts and amps range to suit the intended measurement The ranges should be set higher than the maximum peak input likely to occur For example if an inrush of about 20 Amps peak is expected the 50 amp range should be chosen Use the up and down arrow keys beneath the appropriate LED panel display to select a measurement range for voltage and current and then press ENTER The display now changes to DATALOG waiting for trigger Press the START key to capture the event The delay from trigger to the commencement of sampling is in the order of 10 20 uS The display will show DATALOG triggered After the trigger the LED under the
4. 4 1 PROGRAMMING 4 1 1 Up to five set ups can be stored in the PM3000A s non volatile memory Any of the five programs may be loaded on power up to configure the instrument automatically to a particular set up All settings are stored when a set up is saved The P button can also switch the instrument from the P 1 set up to the P 2 set up if the PROGRAM SWITCH function is enabled See section 5 5 To save a set up press the P key Use the SELECT key to choose gt save program lt and press ENTER The next display shows gt Program 1 5 lt Press ENTER to continue or SELECT to quit Then select the required program number with the digit keys and press ENTER The current configuration will be stored as the program selected in non volatile memory This is powered by a lithium battery with a life of at least five years To LOAD A STORED SETUP Press the P key Use the SELECT key to choose gt load program lt and press ENTER The next display offers the choice of gt standard lt gt program 1 to 5 lt or gt Quit lt Using the SELECT key choose gt standard lt for power up configuration or gt program 1 to 5 lt fora programmed configuration Press the ENTER key to confirm the setting If gt program 1 to 5 lt is selected the next display allows choice of the program number Enter the number using the digit keys and press ENTER The set up will be loaded If no program has ever been loaded into that st
5. 00 5 PONA APPENDIX 2 PM3000A USER MANUAL THD FORMULA TIMEBAND INTEGRATION TIMED PRINT TORQUE INPUT TRANSFORMER TEST MODE TRUE POWER V VA APPARENT POWER VAR REACTIVE POWER VERBOSE MODE VOLTAGE V VOLTAGE CREST FACTOR VOLTAGE DEVIATION TESTS VOLTAGE HARMONICS VOLTAGE TOTAL HARMONIC DISTORTION VPAS SOFTWARE FOR WINDOWS WARRANTY WATTS MEASUREMENT WIRING CONFIGURATION PAGE NUMBER 3 10 6 1 7 4 8 2 8 8 5 14 2 3 3 1 PAGE NUMBER ODOOON KAA PAGE NUMBER 11 17 3 1 2 2 5 1 PM3000A USER MANUAL APPENDIX 3 APPENDIX 3 FORMULAE APPENDIX 3 PM3000A USER MANUAL PM3000A USER MANUAL APPENDIX 3 CHANNEL FORMULAE CH1 2 3 AND NEUTRAL RMS FORMULAE VA IV MS x Ae VAr VA w 1 r7 Vers T A v dt l A pms T i dt PE Watt E x A us _ Total RMS Volts Total RMS Amps _ Peak Value CF RMS Value FUNDAMENTAL FORMULAE W fund V1 rx Al r V1 q x Al q VAr fund V1 q x Al r Vl r x 1 if W 0 VAr fund V1 r x Al q V1 q x Al r if W lt 0 V fund V1 7 V1l q A fund Al r Al q VA fund VVA PF fund cosQ where phase angle where W fund VA fund cos 0 APPENDIX 3 PM3000A USER MANUAL Z fund R fund jX where Re V fund A fund X fund F Jana x sin A fund cos O x HARMONIC ANALYSIS
6. CL1000 CL100 Ballast CT VPN 77 001 VPAS 1EC1000 3 PS1000 APP Note 101 APP Note 104 APP Note 105 PAGE 1 2 PM3000A USER MANUAL GENERAL DESCRIPTION 1 3 SYSTEM OVERVIEW The user is referred to the block diagram on the next page The PM3000A has 6 isolated input channels 3 voltage 3 current with 12 ranges per channel Each channel has its own A D converter which samples the input and sends the digital data back to a microprocessor using an isolation link This technique allows the PM3000A to have an extremely high common mode rejection minimizing the effects caused by high dv dt waveforms such as those existing in motor drives etc The sampling is under the direct control of the processor and the analogue to digital conversion for all channels is simultaneous no phasing errors The normal measurement procedure is as follows Note that many of the measurements have separate routines All channels are sampled at a sample rate set by the microprocessor The data is stored in memory until 400 samples for each channel have been made The data is then checked for over range or under range If the range is correct the frequency of the input is calculated If the sample rate is not right for the input frequency the sample rate is adjusted and 400 new samples are taken The digital signal processor then calculates the volts amps and watts etc for each channel and then performs a Fourier analysis of the d
7. Connect the output of the drive to the PM3000A in 303W 304W mode see diagram in section 2 3 Select PWM DRIVES gt real time output lt mode and the display shows as follows PWM OUTPUT RANGE gt 5 Hz to 1kHz lt Use the SELECT and ENTER keys to choose the frequency band depending on the motor operating speed range e g 5Hz to 1kHz Use the digit keys to enter the maximum PWM OUTPUT VOLTS for recorder scaling e g 250 Press ENTER Use the digit keys to enter the maximum PWM OUTPUT AMPS for recorder scaling e g 20 Press ENTER Use the digit keys to enter the maximum PWM OUTPUT WATTS for recorder scaling e g 5000 Press ENTER PAGE 5 12 PM3000A USER MANUAL THE FUNCTION MENUS The computed results appear on outputs 1 to 4 of the analogue output connector For example Output 1 total Vrms 0to5V Oto250V Output 2 total Arms 0 to 5V Oto20A total Watts 0 to 5V 5000W to 5000W Output 4 total PF Otosv Oto1 5 7 4 HARMONICS To extend the measurement of harmonics that exceed the filter cut off freguency provided the frequency is not fluctuating the following procedure can be followed First measure and store the freguency with the PWM filter on Switch to a configuration that uses the stored freguency and disables the filter Harmonics to the 99th may now be analyzed By using the PROGRAM SWITCH these two configurations can be toggled to update the stor
8. The function of each is as follows CH1 Displays the measured values for the phase connected to channel 1 CH2 Displays the measured values for the phase connected to channel 2 CH3 Displays the measured values for the phase connected to channel 3 gt Displays the summation total value for multiphase systems N Displays neutral currents in multiphase systems These waveforms are computed by summation of the instantaneous values of the individual phase currents Information is only displayed if relevant to the wiring mode selected For example if 1 2W has been selected only the CH1 key will display the measured parameters Selecting any of the other four keys will result in the message FUNCTION INVALID being displayed The user is encouraged to assess the effect of selecting combinations of the Channel Select and Wiring keys PAGE 2 2 PM3000A USER MANUAL GETTING STARTED 2 2 3 2 2 4 2 2 4 1 2 2 4 2 2 2 4 3 2 2 4 4 2 2 4 5 2 2 4 6 AUTO KEYS The PM3000A is a fully auto ranging instrument and in most measurement modes the green LED under the AUTO keys for volts and amps should be illuminated Specific ranges for voltage or current may be chosen if desired Use the up and down arrow keys beneath the appropriate display to select a measurement range The green LED beneath the AUTO key will be extinguished and the range chosen volts or amps indicated by the red LED panel If the voltage or
9. VAr etc to enter the functions to be printed Ifa parameter is already displayed pressing its key again will cancel it Press ENTER when the choice is correct If the fundamental components need to be printed use SELECT and ENTER to gt enable lt this option If both volts and amps harmonics have been selected watts harmonics can also be selected for print If harmonic measurements have been selected the next display allows the user to enter the maximum harmonic to be printed 1 to 99 and whether to print all harmonics odd and even or odd only Note that choosing more than the fundamental harmonic of either volts or amps will impose an additional burden on the processor and will lengthen the measurement cycle The magnitude of the harmonics is printed in volts or amps and as a percentage of the fundamental value Finally the choice of triggering method is set as described in section 8 1 1 PAGE 8 2 PM3000A USER MANUAL INTERFACE SET UP 8 1 3 8 2 PRINTING INTEGRATOR RESULTS Printouts will be generated automatically if the appropriate settings are made in the integrator setup menu see section 7 2 PRINTING DATALOG RESULTS Printouts will be generated automatically if the appropriate settings are made in the datalog setup menu see section 9 1 IEEE488 INTERFACE The PM3000A is configurable to IEEE488 1 and IEEE488 2 protocol standards See section 10 for a full description of the commands available
10. fund Ohms where phase angle where phase angle FORMULAE Vharm 4 Vh r Vh q Vharm deg tan Aharm J Ah r 4 Vh q Vh r Ah q Aharm deg tan aha Ah r TE JVRMS Vn1 VREF ying IAEA VR Vh4 Vh5 VREF Ahi AREF PE V4h2 Ah3 ARS AREF MEAN FORMULAE 1 zd T MEAN PM3000A USER MANUAL SUM FORMULAE APPENDIX 3 1 PHASE 3 WIRE SUM FORMULAE chlV ch2V fund chW fund ch2V fund gt W chW ch2W NW fund chW fund ch2W fund Y VAr Var fund chWAr h ch2VAr h gt Var fund chWAr fund ch2VAr fund Zra Y W Var Y VA fund Y W fund Y Var fund ye uS A So A LU 3 See Page 6 3 Y A fund er Y PF on gt PF fund DY fund 25 VA fund APPENDIX 3 PM3000A USER MANUAL 3 PHASE 3 WIRE SUM FORMULAE Y y S chlV ch2V 2 SV fund _ chiV fund ch2V fund gt chW ch2W fund chW fund ch2W fund N Var E VAr fund E x chWar h eraann gt Var fund ch VAr fund ch2VAr fund YVA DW Var Y VA fund JW fund VAr fund A or ya LE See Page 6 3 _ Y VA fund W rr Be NW fund fund STA PM3000A USER MANUAL APPENDIX 3 3 PHASE 4 WIRE SUM FORMULAE _ ch2V ch3V di _
11. 1 reading A reading x V error x 1 PF V reading x A error x 1 PF 0 04 1 PF reading It It It A reading x V error x 1 PF2 V reading x A error x 1 PF 0 06 1 PF 9 reading 196185 A reading x V error x 1 PF V reading x A error x 1 PF2 kHz 1250 x 0 01 1 reading indicates positive power flow indicates negative power flow 0 000 to 1 000 0 002 kHz x 0 001 PF indicates leading PF indicates lagging PF Range 1 000 to 19 999 Basic Accuracy Voltage Crest Factor 0 196 reading 0 05 range 0 02 23 5 C Current Crest Factor 0 196 reading 0 01 range 0 01 All models PAGE 11 2 SPECIFICATION PM3000A USER MANUAL 11 8 INRUSH CURRENT Range Accuracy 23 5 C Sampling Interval 10 2 wire All models 10 wire 3 3 wire 30 4 wire 11 9 IMPEDANCE Range Accuracy 23 5 C 45 to 450Hz All models 0 1 to 500kHz 11 10 FREQUENCY Range Internal Source External Source Accuracy 23 5 C All models 11 11 HARMONIC ANALYSIS Range Accuracy 23 5 C All models Std amp 001 models Current Fundamental 002 model Current Fundamental All Models Harmonic THD Voltage Fundamental 0 1A to 200Apk with scaling to 20MA 2 of selected range 3 6 US 6 8 US 10 uS 0 00010 to 9 999 MO 0 5 reading 0 5 reading kHz
12. IEEE COMMUNICATION 197 HIGH FREQUENCY NR1 0 disabled 1 enabled 198 RPM INPUT NR3_ 10 9 to 109 pulse rev 199 RPM INPUT NR1 0 pulse 1 voltage 200 CHART RECORDER R1 NR1 0 disabled 1 enabled 201 CHART RECORDER R1 NR1 function 0 31 202 CHART RECORDER R1 NR1 0 CH1 1 CH2 2 CH3 3 SUM 4 NEU 203 RECORDER MINIMUM R1 NR3 204 RECORDER MAXIMUM R1 NR3 205 ALARM TYPE R1 NR1 O noalarm 1 alarm if low 2 alarm if high 3 alarm if high or low 206 211 rec 2 as 200 204 above 212 217 rec 3 as 200 204 above 218 223 rec 4 as 200 204 above 224 229 rec 5 as 200 204 above 230 235 rec 6 as 200 204 above 236 241 rec 7 as 200 204 above 242 247 rec 8 as 200 204 above 248 N A 249 N A 250 FREQUENCY COMPENSATE NR1 0 disable 1 enable 251 autozero NR1 O disable 1 enable 252 FLICKER SIMULATION NR1 0 99 256 N A 257 N A 258 N A 259 N A 260 LINE RESISTANCE Ohms NR3 261 LINE INDUCTANCE mH NR3 262 RUN TIME minutes NR1 units of 0 1 minutes 263 PERMITTED DROP NRI units of 0 05 264 VOLTAGE OR CURRENT NR1 0 voltage 1 current 265 N A 266 N A 267 N A 268 N A 269 N A 270 EFFICIENCY NR1 0 disable 1 enable 271 EFFICIENCY FORMULA NR1 0 ch3 sum 1 sum ch3 2 ch1 ch3 3 ch2 ch3 4 ch1 ch2 272 EFFICIENCY UNITS NR1 0 Watts Watts 1 VANA 2 Watts VA 3 VA Watts 273 EFF
13. PIVBODOACE User Manual Version 6 Applies to PM3000ACE Standard PM3000ACE 001 with torque and speed inputs PM3000ACE 002 for full compliance IEC harmonics VPN 98 051 6 PM3000A USER MANUAL HEALTH AND SAFETY HEALTH AND SAFETY AT WORK Electrical devices can constitute a safety hazard It is the responsibility of the user to ensure the compliance of the installation with any local acts or bylaws in force Only qualified personnel should install this equipment after reading and understanding this users guide These operating instructions should be adhered to If in any doubt consult your supplier DANGER ELECTRIC SHOCK RISK Please note This equipment is supplied under warranty conditions in force at the time of purchase from your supplier Contact your supplier for details Any attempt to disassemble or modify the unit will render any warranty agreement invalid The contents of this guide are believed to be accurate at the time of printing The manufacturers however reserve the right to change the content product specification and performance criteria without notice No liability is accepted for the inappropriate negligent or incorrect set up of the instrument by the user either by manual or automated means HEALTH AND SAFETY PM3000A USER MANUAL SAFETY PRECAUTIONS 1 The PM3000A is constructed in compliance with the requirements of EN61010 1 Pollution Degree 2 Installation Category II
14. external trigger input on the rear panel The waveforms themselves are available on the analogue outputs The results from the analysis are not available at the front panel display Prior to using data log the user has to specify the functions to be printed printer menu When the results have been computed they will automatically be sent to the printer There are two Data Log modes Cycle by Cycle where the analysis is performed on a per cycle basis Datalog where the analysis is performed over a user entered time To set up the mode press the DATA LOG key and next display is as follows CYCLE BY CYCLE LOG gt disabled lt Use the SELECT and ENTER keys to choose gt disabled lt or gt enabled lt as required CYCLE BY CYCLE ANALYSIS After entering the number of cycles to analyze the PM3000A will produce RMS measurements for each cycle there is no averaging over cycles or missing cycles The data may be printed or returned to a computer for further analysis over the IEEE488 or RS232 interfaces The following parameters may be measured on a cycle by cycle basis CH1 CH2 CH3 Watts Volts Amps VA VAr Power Factor Frequency and Impedance 2 Watts Volts Amps VA VAr and Power Factor Neutral Amps Auxiliary Inputs Torgue Speed The speed input must be the analogue level to input B since a pulse speed input cannot be analyzed on a cycle by cycle basis PAGE 9 1 DAT
15. This allows the instrument to continue to support the previous IEEE command set alongside the new IEEE488 2 command set and automatically distinguish between the commands Where there is a direct incompatibility such as in the status reporting the instrument must be configured for IEEE488 2 operation The instrument will obey both sets of commands no matter whether IEEE488 2 operation has been selected or not with the following exceptions Serial Poll The serial poll byte is defined differently according to IEEE488 2 or the IEEE488 1 protocol Unterminated query error The IEEE488 1 protocol gives repeated BO command replies without a specific request This is not valid in IEEE488 2 mode and the instrument will time out and set the query error bit in the standard event time register if there is an attempt to read data without first sending a query Commands may be cascaded if separated by If a reply is waiting to be read further commands are received and buffered but will not be executed until the reply buffer has been read e g Note Single reply string F P 276 mode used output 09 CAL CH1 VLT 5 CAL CH2 VLT 5 CAL CH3 VLT 5 enter 09 1 1111E 01 2 222E 02 3 333E 03 PAGE 10 17 IEEE COMMUNICATION PM3000A USER MANUAL Data replies may only be sent in response to a query message which ends with a question mark The data is returned either as an integer NR1 numeric response type or in scientific format wi
16. This can be changed to harmonic series THD value by using F P 16 see section 6 1 A THD CuRRENT HARMONIC DISTORTION MEASUREMENTS The distortion factor of the current waveform can be measured by pressing the A THD key The calculation method is similar to that described in section 3 3 3 above FREQ FREQUENCY Press the FREQ key to display the fundamental frequency of the AC input This frequency is used as the basis for harmonic analysis Frequency is derived from the volts amps or external source see FREQ SOURCE section 3 2 1 In 102W 193W 303W and 304W wiring modes the frequency source is channel 1 In independent CH3 wiring the frequency source for channels 1 and 2 is CH1 and for channel 3 it is CH3 For all other wiring modes the frequency source is its respective channel FUND FUNDAMENTAL VALUES The PM3000A normally displays measurements as true RMS values This takes into account all harmonics noise offsets etc that can be measured within the bandwidth of the instrument When the FUND key is pressed results are displayed which are calculated from the fundamental components of voltage and current only For example the fundamental power factor displayed cos is the phase shift between the voltage and current fundamentals PAGE 3 10 PM3000A USER MANUAL PROGRAM SET UP CHAPTER 4 PROGRAM SET UP PROGRAM SET UP PM3000A USER MANUAL PM3000A USER MANUAL PROGRAM SET UP
17. involving both current and voltage instrumentation transformers and three phases IEEE C57 also guotes the formula 2 Pi kP2 Ea Where Terni temperature P Tm the load losses corrected for waveform at temperature Tm i the measured no load losses at temperature Tm P4 the ratio of hysteresis loss to total iron losses P2 the ratio of eddy current loss to total iron losses E the test voltage measured by the rms voltmeter Vrms Ea the test voltage measured by the mean sensing voltmeter Vav In the Transformer Test Mode the PM3000A will measure the Vav and will calculate the factor k and the corrected power P using a value of 0 5 for both P1 and P2 SETTING UP TRANSFORMER TEST MODE Press the F key and use SELECT and ENTER to choose F 9 TRANSFORMER mode The display is as follows TRANSFORMER MODE gt off lt Use SELECT and ENTER to choose from the following options Vav k fctr P corr The measured results are typically displayed as 0 000 0 000 V for Vav 0 000 V 0 000 A 0 000 W 0 000 for k fctr 0 000 V 100 00 0 000 W 0 000 W for P corr although use of the function keys and other display changes will alter the parameters displayed PAGE 5 15 THE FUNCTION MENUS PM3000A USER MANUAL 5 10 F 10 CALIBRATION 5 10 1 CALIBRATION OVERVIEW All calibration constants are stored in EEPROM allowing the PM3000A to be calibrated wit
18. press SELECT to display gt no lt followed by ENTER and move to the SAVE NEW CAL DATA prompt Choose gt yes lt to proceed with the calibration 5 10 6 EXTERNAL INPUT CALIBRATION Note To calibrate EXTERNAL the AMP RANGE must already be calibrated The display shows XR7 input 31mV rms Value in V gt 0 000 lt To proceed set the voltage generator output to approximately the value requested on the display 1096 and connect to all external inputs Key in the measured value from the digital multimeter Enter the data in volts e g 0 031V PAGE 5 19 THE FUNCTION MENUS PM3000A USER MANUAL Press ENTER and the calibration constants will be calculated The display will then advise PASS or FAIL as for the voltage range Proceed as described in section 5 10 4 Repeat for all six ranges XR7 XR12 If the instrument has the 001 option the display will then show CALIBRATE AUX gt yes lt If the auxiliary inputs do not require calibration press SELECT to display gt no lt followed by ENTER and move to the SAVE NEW CAL DATA prompt see section 4 6 8 7 Choose gt yes lt to proceed with the calibration 5 10 7 AUXILIARY INPUT CALIBRATION The display shows 10V AUX input 1V dc Value in V gt 0 000 lt To proceed set the voltage generator output to approximately the value reguested on the display 10 and connect to both auxiliary inputs A 8 Key in the measured v
19. with each cycle on one line as shown in the example printout on the next page The status indicates OVER if a higher range is required data invalid or UNDER if a lower range could be used data may be outside specification Note that once triggered analysis begins in 10 to 20usec The data used for cycle 0 will be incomplete and should be ignored PAGE 9 2 PM3000A USER MANUAL DATA LOG 9 2 2 CYCcLE BY CYCLE EXAMPLE PRINTOUT WHR c 9 3 9 3 1 18 Jly 95 13 42 RMS DC COUPLED Cycle Status Frequency Channel 1 Hz W V A PF OVER 2 620 1 9453 357 7m 5 469 0 994 OK 10 064 15 376 1 0134 12 874 1 000 OK 10 072 15 409 1 0140 12 847 1 000 DATALOG In Datalog the user has to specify the capture time the voltage and current ranges auto ranging is not available in datalog and the trigger Once triggered the instrument takes a number of samples on all channels over the chosen capture time This data is then analyzed To SET UP DATALOG FUNCTIONS A selection of results to be printed must first be made from the printer menu see section 8 1 2 Check that the correct wiring coupling shunt etc has been chosen Datalog is not configurable with Integrator or PWM mode Press the DATA LOG key and next display is as follows CYCLE BY CYCLE LOG gt disabled lt Use the SELECT and ENTER keys to choose gt disabled lt and the next display will be DATALOG WINDOW gt 30 ms lt
20. 11 2000 41 CURRENT RANGE CH1 NR1 0 0 05 1 0 1 2 0 2 3 0 5 4 1 0 5 2 0 6 5 0 7 10 8 20 9 50 10 100 11 200 42 VOLTAGE RANGING CH1 NR1 0 auto ranging 1 manual 43 CURRENT RANGING CH1 NR1 0 auto ranging 1 manual 44 VOLTAGE SCALING CH1 NR3 45 CURRENT SCALING CH1 NR3 46 RMS DISPLAY CH1 NR1 O true rms 1 mean rectified DC 47 FUNDAMENTALS CH1 NR1 0 disabled 1 enabled 48 JITTER GENERATOR CH1 NR1 0 disabled 1 enabled 49 PWM MOTOR DRIVES CH1 NR1 0 disabled 1 input 2 output 3 real time output 50 69 as 30 49 above for CH2 70 89 as 30 49 above CH3 90 MANUAL TRIGGER LOG NR1 0 disabled 1 enabled 91 EXTERNAL TRIGGER LOG NR1 0 disabled 1 enabled 92 TIMED TRIGGER LOG NR1 0 disabled 1 enabled 93 N A 94 N A 95 N A 96 LOG SAMPLES CYCLES NR1 200 6000 97 DATA LOG WINDOW NR1 0 65535 in units of 1ms 98 N A 99 N A PAGE 10 44 PM3000A USER MANUAL IEEE COMMUNICATION 100 MANUAL TRIGGER INT NR1 0 disabled 1 enabled 101 EXTERNAL TRIGGER INT NR1 O disabled 1 enabled 102 TIMED TRIGGER INT NR1 0 disabled 1 enabled 103 CYCLIC INTEGRATION NR1 0 disabled 1 enabled 104 CYCLIC INTERVAL NR1 0 65535 in minutes 105 INTEGRATE START DATE NR1 0 65535 yyyyymmmmdddddd 106 INTEGRATE ST
21. 135 HARMONIC SERIES NR1 0 odd and even 1 odd only 136 MAXIMUM HARMONIC NR1 0 99 137 PRINT FUNDAMENTALS NR1 O disabled 1 enabled 138 PRINTOUT RESULTS CH1 NR1 0 disabled 1 enabled 139 PRINTOUT RESULTS CH2 NR1 0 disabled 1 enabled 140 PRINTOUT RESULTS CH2 NR1 O disabled 1 enabled 141 PRINTOUT RESULTS SUM NR1 0 disabled 1 enabled 142 PRINTOUT RESULTS NEU NR1 0 disabled 1 enabled 143 PRINTOUT INTERVAL 1_ 0 11999 in minutes 144 N A 145 N A PAGE 10 45 IEEE COMMUNICATION PM3000A USER MANUAL 146 N A 147 N A 148 N A 149 N A 150 N A 151 N A 152 printout Watts NR1 0 disabled 1 enabled 153 printout VA NR1 0 disabled 1 enabled 154 printout VAr NR1 0 disabled 1 enabled 155 printout Vrms NR1 0 disabled 1 enabled 156 printout Arms NR1 0 disabled 1 enabled 157 printout PF NR1 0 disabled 1 enabled 158 printout V peak NR1 0 disabled 1 enabled 159 printout A peak NR1 0 disabled 1 enabled 160 printout V cf NR1 0 disabled 1 enabled 161 printout A cf NR1 0 disabled 1 enabled 162 printout A inrush NR1 0 disabled 1 enabled 163 printout Impedance NR1 0 disabled 1 enabled 164 printout W hours NR1 0 disabled 1 enabled 165 printout VA hours NR1 0 disabled 1 enabled 166 print
22. 3 Rx CTS 4 4 RTS RTS 5 5 CIS als 6 6 DSR ground Y 1 ground Note On some PC s it may be necessary to link pins 20 and 6 at the PC connector 9 way PC Connector PM3000A Computer Rx 2 3 Tx Tx 3 2 Rx CTS 4 7 RTS RTS 5 8 CTS 1 DCD 4 DTR 6 DSR ground 7 5 ground Note On some PC s it may be necessary to link pins 1 4 and 6 at the PC connector PAGE 8 4 PM3000A USER MANUAL INTERFACE SET UP 8 4 CHART RECORDER INTERFACE In Chart Recorder mode the Analog Alarms interface provides eight 0 to 5V DC outputs The signal provided from these outputs is proportional to the level of the function being monitored The Chart Recorder menu can be configured to record any eight functions including fundamentals and integrated values except inrush current Vpk Apk Vharm Aharm CORR Vars and AV PF from channels 1 2 3 and SUM To enable the Chart Recorder interface first use ENTER to choose the chart recorder option from the Interface menu and then use SELECT and ENTER as necessary to choose gt enabled lt The display will be similar to that shown below CHART RECORDER gt R1 lt Use the SELECT key to choose the required recorder output channel from R1 to R8 and press ENTER The display will then be similar to that shown below CHART RECORDER R1 gt enabled lt Use the SELECT and ENTER keys as necessary to enable the recorder out
23. Format Options Return format Example PWM DRIVE MODE device command none PWM DIS INP window OUT filter REC DIS disable PWM mode NP___ set PWM drive input mode OUT set PWM output mode REC set real time chart recorder mode window input window in seconds from 1 to 10 filter output filter 1 5Hz to 1kHz 2 0 5Hz to 50Hz 3 0 1Hz to 40Hz none CMD gt output 10 PWM OUT 1 RAV Class Return type Format Options Return format Example Notes Class Return type Format Options Return format Example RESET AVERAGING device command none RAV none none CMD gt output 10 RAV This command can be used to speed up the response of fixed averaging RMS SET RMS OR RECTIFIED MEAN MEASUREMENT device command none RMS TRU MEA true rms measurement MEA rectified mean none CMD gt output 10 RMS TRU PAGE 10 37 IEEE COMMUNICATION PM3000A USER MANUAL RNG SET RANGING Class Return type Format Options Return format Example RST device command none RNG VLT FIX range AMP RNG VLT AUT AMP set voltage ranging set current ranging fixed ranging autoranging range integer range 1 12 none CMD gt output 10 RNG AMP FIX 5 RESET DEVICES Class Return type Format Options Return format Example Notes Class Return type Format Options Return format Example Notes Class Return type Format Options Return format
24. MEASUREMENTS The PM3000A provides comprehensive integration capability for determining energy consumption or maximum demand The ACCUMULATED VALUES of WHr VAHr VAr Hr AHr average power factor and correction VArs are normally displayed and printed out These can be changed to provide AVERAGED VALUES of W VA VAr and A for the elapsed integrator period by using F P 115 to averaged see section 6 1 This can be set during before or after the integration period The instrument operates independently of other measurement functions allowing the operator to make normal measurements whilst integration is in progress The following functions are available W HR WATT Hours This records total energy consumption When used in conjunction with the FUND key the integrator will display energy consumption due to fundamental components only When the key is pressed the display changes to Elapsed time 0 00000 W hrs 0 000 VA HR VA Hours This records the apparent energy consumption or maximum demand When used in conjunction with the FUND key the integrator will display energy consumption due to fundamental components only The display format is similar to that shown above VAR HR VAR Hours This records the reactive energy consumption When used in conjunction with the FUND key the integrator will display energy consumption due to fundamental components only A HR AMPERE HOURS This measures the ampere hours c
25. START RESET key will illuminate to show that the analysis is under way When the analysis is complete the LED will turn off and the results chosen to be output will be printed At the same time the captured waveforms will be presented on the analogue outputs connector If there is a neutral wire the calculated neutral waveform will be output An oscilloscope trigger output is also generated After the event has been captured the display will show DATALOG gt stop lt or gt reset lt To set up a different menu in DATALOG first exit DATALOG by pressing STOP and then re enter the menu Press RESET to arm the PM3000A for another datalog trigger under the same conditions PAGE 9 4 PM3000A USER MANUAL DATA LOG 9 3 2 DATA LOG SAMPLE RATES WIRING CAPTURE SAMPLE MAX FREQ SAMPLES TIME RATE CHANNEL ALL WIRING SETUPS 30 mSec 60 mSec 300 mSec 1 Sec 5 Sec NOTE The maximum input wave form frequency is limited as indicated in the MAX FREQ column if harmonic analysis fundamental or frequency are to be recorded PAGE 9 5 DATA LOG PM3000A USER MANUAL PAGE 9 6 PM3000A USER MANUAL IEEE COMMUNICATION CHAPTER 10 IEEE COMMUNICATION IEEE COMMUNICATION PM3000A USER MANUAL PM3000A USER MANUAL IEEE COMMUNICATION 10 1 IEEE488 OVERVIEW The PM3000A is configurable to IEEE488 1 and IEEE 488 2 protocol standards Refer to section 10 4 for IEEE488 1 and section 10 6 for IEEE488 2
26. computer control lt mode as described above to allow the interface to be used for computer control Note that all of the commands described in section 10 of this manual are obeyed IEEE488 1 and IEEE488 2 PAGE 8 3 INTERFACE SET UP PM3000A USER MANUAL The PM3000A operates with a simple ASCII protocol where any received characters are echoed back to the sender On receipt of a carriage return the command is processed and any reply is returned terminated with an idle prompt gt Note that this means that all commands return some characters only the idle prompt if no other data If the PM3000A is unable to receive characters due to internal operations it will de assert the RTS handshaking line Due to delays in responding to the RTS line the preferred method of communicating with the PM3000A is to wait for the echoed data before sending the next character The completed protocol then becomes DO send character wait for echo UNTIL all strings sent send carriage return r or OD hex or 13 decimal DO receive data UNTIL gt received The echo function can be disabled by F P 275 Verbose Mode see Section 6 1 The REMOTE LED illuminates when the first command has been sent A screen prompt gt is provided to denote that the RS232 line is idle Connection details are shown in the following tables 25 way PC Connector PM3000A Computer screen 1 1 screen Rx 2 2 Tx Tx 3
27. control Enter a start date followed by a stop date Follow this with a start time and a stop time After each date time entry press ENTER to move on to the next display Dates and times are entered in the following format Day DD Month MM Year YY Hour HH Minutes MM The next display offers selection of CYCLIC INTEGRATION see next section Select gt disabled lt PAGE 7 3 INTEGRATOR PM3000A USER MANUAL 7 2 3 7 2 4 The display then offers selection of 5 timeband resets within the integration period see section 7 2 4 Repeatedly press ENTER to skip these For timed integration there is the option to reset clear the integrator result with each timeband or cyclic interval Ifthe INTEGRATOR RESET option is disabled the integrator results will be printed at each cyclic interval or timeband giving an accumulation between the start and stop times without resetting Enabled will clear the results at each cyclic interval or timeband When CYCLIC INTEGRATION or TIMEBAND INTEGRATION is not selected the setting of this option has no effect press ENTER There is then the option to configure the printer as described earlier and the integrator is then set and will integrate between the start and stop times automatically The terminal results may then be viewed on the front panel display and will automatically be printed out if the printer interface is enabled CYCLIC INTEGRATION If the CYCLIC
28. current range is set too low an OVERLOAD message will be displayed MEASUREMENT KEYS The use of the six keys at the top left of the front panel is described below these are used for the most common measurements of power systems Further details of these and other measurement keys are covered in the following chapters W TRUE POWER Measures the power absorbed by a load or delivered from an ac source even with distorted waveforms The instrument is ac dc coupled and therefore measures the total real power VA APPARENT POWER Determines the apparent power absorbed by a load or delivered from a source VAR REACTIVE POWER Computes and displays the reactive power flow due to the phase difference between the current and voltage waveforms and due to waveform distortion V VOLTAGE Displays the true RMS or mean values of the input voltage s even with distorted waveforms A CURRENT Displays the true RMS or mean values of the load current s even with distorted waveforms PF POWER FACTOR Displays the true power factor of an ac load PAGE 2 3 PM3000A MANUAL GETTING STARTED 2 3 CONNECTION DIAGRAMS Single phase Two wire and DC measurements Select 2W Single phase Three wire Select 3W Three phase Three wire 2 wattmeter method Select 3W Three Phase Source Three phase Three wire 3 wattmeter method Select E17 4W Three Phase S
29. each channel plus neutral if applicable in the following formats SINGLE PHASE TWO WIRE V1 A1 6000 S Ch SINGLE PHASE THREE WIRE V1A1V2A2N 6000 S Ch THREE PHASE THREE WIRE V1 A1 V2 A2 6000 S Ch THREE PHASE FOUR WIRE V1 A1 V2 A2 V3 A3 N 6000 S Ch X1xx0 Data Dump off for normal format data X1 xx 1 Data Dump on for 8 bit data To use the data log mode with the data dump facility Set the list of results required with the B1 command Send the X1 x x 1 command Wait until data log is complete Read the computed data Send B3 Read the data 6000 sets of samples Send X0 data log off o 92c0ocon PAGE 10 13 IEEE COMMUNICATION PM3000A USER MANUAL 10 4 28 FUNDAMENTAL DISPLAY SELECTION FORMAT Y 0 1 Turns the fundamental lamp on or off to select the fundamental component of the displayed results YO Display reads total values Fund LED off Y1 Display reads fundamental values Fund LED on This command will not work where the fundamental button would not have valid effect e g fundamental amps peak is not valid 10 5 EXAMPLE IEEE488 1 PROGRAM To read VOLTS AMPS WATTS FREQ and AMPS HARMONICS 1 15 odds only for a 1 phase 2 wire configuration Send MLA 9 address the PM3000A to listen Send P1 Set WIRING to 1 phase 2 wire Send B1 01 0 100110000000000000001001 This requests results to be returned from the background averaging store Return data from CH1 only and no fundam
30. for more details To select this mode press the F key and use SELECT and ENTER to choose F 6 IEC555 TESTING PAGE 5 4 PM3000A USER MANUAL THE FUNCTION MENUS 5 6 1 5 6 2 The options available are gt Disable lt gt Fixed Harmonics lt gt Fluctuating Harmonics lt gt Changing Voltage lt gt Flickermeter lt Use the SELECT and ENTER keys to choose the desired measurement mode FIXED HARMONICS There are various classes of EN60555 and EN61000 3 2 Limits Each of these limits is applicable to certain types of equipment such as balanced 3 phase portable tools lighting motor driven or other The equipment under test has met the IEC555 specification of fixed harmonics if the appropriate limits are not exceeded Selecting this mode automatically sets up the printer output for 40 current harmonics AH1 AH40 Watts and Power Factor Press DATADUMP to print the selection to the printer Refer also to our EN60555 61000 3 Test Software Disk which provides bargraphs with IEC limits and captured waveform display FLUCTUATING HARMONICS Fluctuating harmonics mode continuously measures the current harmonics of the equipment under test over a set period of time The harmonic levels are tested against the appropriate class limits and against a second set of limits which are 1 5 x class limits for the set period of time If any harmonic exceeds the second set of limits at any time during the test pe
31. has been set for following protocol Spoll until bit 1 Background Available goes high i e spoll AND 2 2 SPOLL 10 Send BRD command with selected channel OUTPUT 10 BRD CH1 Receive data until END ENTER 10 1 0734E2 8 714E 2 7 044E 1 6 102E1 1 0734E2 6 137E 2 9 999E 1 ENTER 10 PAGE 10 21 IEEE COMMUNICATION PM3000A USER MANUAL Notes END The values above correspond to the following results Vrms 1 0734E2 Arms 8 714E 2 PF 7 044E 1 Freq 6 102E1 Fund Vrms 1 0734E2 Fund Arms 6 137E 2 Cos phi 9 999E 1 BRD Background ReaD can be used to collect background analysis data over the IEEE interface It facilitates the passing of large amounts of data from the PM3000A to the host computer BRD uses the printer function selection bytes to establish which functions should be returned Once background data is available the BRD command is sent and the data will then be returned BRD sends data over the IEEE in the floating point format and up to 8 values are sent on each line This will continue until all lines have been sent BRD will then send a final line containing END It is important to note the order in which functions are returned There follows a list of the function order and this is constant for all channels Even if certain functions are not selected in the background analysis the same basic order will be maintained except those functions will be missing 1 Watts 2 VA 3 VAr 4 Vrms
32. in both modes To enable the IEEE488 interface first use ENTER to choose the IEEE488 option from the Interface menu and then use SELECT and ENTER as necessary to choose gt enabled lt Next you are prompted for the IEEE bus address to be used by the instrument Enter the required address between 1 and 30 and press ENTER Then use SELECT and ENTER as necessary to choose gt enabled lt or gt disabled lt for the IEEE488 2 protocol 8 3 RS232 INTERFACE 8 3 1 8 3 2 The RS232 interface operates with 1 start bit 8 data bits 2 stop bits and no parity The baud rate is user selectable Simple CTS RTS handshaking is used to control data flow To enable the RS232 interface first use ENTER to choose the RS232 option from the Interface menu and then use SELECT and ENTER as necessary to choose gt enabled lt The display will be similar to that shown below RS232 BAUD RATE gt 19200 lt Use the SELECT key to choose the required baud rate and press ENTER to confirm the selection The user must now choose between gt printer lt and gt computer control lt using the SELECT and ENTER keys USING THE RS232 INTERFACE WITH AN EXTERNAL PRINTER Choose the gt printer lt mode as described above The printer output will now be directed to the RS232 port on the rear of the PM3000A and a printer with a suitable serial interface may be connected USING THE RS232 INTERFACE FOR COMPUTER CONTROL Choose the gt
33. menu and choose disabled With the Chart Recorder enabled the Chart Recorder level will change between 0 and 5V in proportion to the function being recorded between the upper and lower limits ANALOGUE OUTPUTS INTERFACE The PM3000A has an Analogue Alarms interface at the rear panel which can be configured to work as a Chart Recorder described above Analogue Alarm or as an Analogue Output ANALOGUE ALARMS To set alarms simply program the low and high limits in the Chart Recorder option to the same value If the measured value is below the limit the recorder output will be OV if the measured value is above the limit the recorder output will move to 5V ANALOGUE RECORDER CONNECTOR 25 WAY D R1 SOCKET R2 R3 R4 R5 R6 R7 R8 2 16 even GROUND ANALOGUE OUTPUTS In this mode the waveforms on each input are digitized and sent to the analogue outputs The outputs can therefore be conveniently viewed in real time and at a safe potential 0 to 5V The outputs can be viewed without distortion for waveforms with frequencies less than 1kHz The voltage and current ranges can be changed to obtain the best resolution but all other measurement functions cease when this mode is active For this reason it is not possible to enter this mode whilst the integrator is running To enable the Analogue Outputs interface first use ENTER to choose the analogue outputs option from the Interface menu The display shows ANALOGUE
34. minimum This command resets the display and background averaging The Q3 command will take approx 10 seconds to make a reading if a low frequency 5 Hz is to be measured 10 4 21 SELECT VOLTAGE RANGE FORMAT RV 00 12 Selects the voltage range RVOO Selects auto ranging RVO7 Selects 50 Volt Peak range manual RVO1 Selects 0 5 Volt Peak range manual RVO8 Selects 100 Volt Peak range manual RVO2 Selects 1 0 Volt Peak range manual RVO9 Selects 200 Volt Peak range manual RVO3 Selects 2 0 Volt Peak range manual RV10 Selects 500 Volt Peak range manual RV04 Selects 5 0 Volt Peak range manual RV11 Selects 1000 Volt Peak range manual RVO5 Selects 10 Volt Peak range manual RV12 Selects 2000 Volt Peak range manual RVO6 Selects 20 Volt Peak range manual The commands RV01 RV12 reset the display and background averaging The auto ranging command RV00 has no effect on averaging 10 4 22 SELECTS AMPS RANGE FORMAT 00 12 Selects the amps range of all three channels RAOO Selects auto ranging RAO7 Selects 5 0 Amp Peak range manual RAO1 Selects 0 05 Amp Peak range manual RAO8 Selects 10 Amp Peak range manual RAO2 Selects 0 1 Amp Peak range manual RAO9 Selects 20 Amp Peak range manual RAO3 Selects 0 2 Amp Peak range manual RA10 Selects 50 Amp Peak range manual RA04 Selects 0 5 Amp Peak range manual RA11 Selects 100 Amp Peak range manual PAGE 10 11 IEEE COMMUNICATION PM30
35. register SRE READ SERVICE REQUEST ENABLE REGISTER Class common query Retum type NR1 numeric response data Format SRE Options none Return format 0 255 y ess BAS DAS DAS data available summary see DSR BAS background data available summary see BSR MAV message available ESB standard event status summary see ESR Example CMD gt output 10 SRE CMD gt enter 10 1 Notes The RAS bit in the serial poll status byte is set according to the change in the logical bitwise AND of the status byte register and the service request enable register READ STATUS BYTE Class common query Return type NR1 numeric response data Format STB Options none Return format 0 255 Mss ESB BAS DAS DAS data available summary see DSR BAS background data available summary see BSR MAV message available ESB standard event status summary see ESR MSS master summary status Example CMD gt output 10 STB CMD gt enter 10 65 Notes Reading the status byte clears the register PAGE 10 40 PM3000A USER MANUAL IEEE COMMUNICATION Class Retum type Format Options Return format Example Notes common command none TRG none none CMD gt output 10 TRG TRG hasthe same effect as a Group Execute Trigger It initiates the measurement cycles for BRD command TST Class Retum type Format Options Return format E
36. respectively To enable IEEE 488 mode press the INTERFACE key and then use the SELECT key to scroll through the options until gt IEEE488 lt is displayed Press the ENTER key and use SELECT and ENTER to gt enable lt 488 It will then be necessary to confirm the IEEE address number by pressing ENTER to modify see section 10 2 below If IEEE488 2 operation is required this must also be gt enabled lt using the SELECT and ENTER keys The IEEE Interface allows the PM3000A to form part of a system providing measurement data to other parts of that system In addition the instrument can be instructed via the interface so that the instrument s configuration can be selected remotely A typical installation is shown below Controller Able to Talk and Listen PM3000A Power Analyzer Printer IEEE BUS Listen Only Equipment Under Test Other Instruments The IEEE 488 bus consists of a controller e g a computer with an IEEE card and one or more instruments These may be talkers able to send results listeners able to receive commands or talker listeners able to receive commands and send results The PM3000A IEEE 488 interface is a full talker listener as defined by the IEEE Standard 488 1978 PAGE 10 1 IEEE COMMUNICATION PM3000A USER MANUAL The following subset is implemented SH1 Source Handshake complete capability AH1 Acceptor Handshake complete capability T6 Basic Talker with
37. serial poll and unaddress with MLA TEO No extended Talker L4 Basic Listener unaddress with MTA LEO No extended Listener SR1 Service request complete capability RL1 Remote Local complete capability PPO No parallel poll capability DC1 Device Clear complete capability DT1 Device Trigger complete capability CO No controller capability 10 2 ADDRESSING Each instrument has an address by which it is recognized on the bus The PM3000A address may be altered as follows Press the INTERFACE key and then use the SELECT and ENTER keys to enable the IEEE488 interface as described above The display will then show IEEE ADDRESS select 1 30 gt 10 lt Using the data entry keys enter the value e g 10 and press ENTER to store this value If you make a mistake before pressing ENTER press the SELECT key and re enter the value This now remains the default value even when the PM3000A is powered off When the PM3000A is addressed as a talker results may be read by the controller as a listener it will respond to commands sent by the controller After the PM3000A has been addressed the REMOTE LED will illuminate and the keyboard will be locked out It is possible to return to front panel control by pressing the LOCAL key The controller can send a LOCAL LOCKOUT command which will disable the LOCAL key if required 10 3 DATA SOURCES The PM3000A may send information from four different sources display backgro
38. to neutral voltage measurements El Selects phase to phase voltage measurements If 3 phase 4 wire measurements are being made EO or E1 should be sent atthe start of the program to ensure the correct voltage measurements are taken These commands have no relevance for any other wiring configuration 10 4 9 SELECT FUNCTION FORMAT F 00 23 The main measurement function bottom row of the display may be selected with this command The leading zero is necessary The functions are FOO Watts F13 VA Hours F01 VA F14 VAr Hours F02 VAr F15 Ampere Hours Volts F16 Average Power Factor F04 Amps F17 Correction VArs F05 Power Factor F18 Toggle Fundamental FO6 Volts Peak F19 Voltage Harmonics FO7 Amps Peak F20 Current Harmonics F08 Volts Crest Factor F21 Voltage Distortion Factor F09 Amps Crest Factor F22 Current Distortion factor F10 Inrush Current F23 Frequency F11 Impedance F12 Watt Hours 10 4 10 FAsT MODE FORMAT G 0 1 Sets the PM3000A to the fast mode of operation no harmonic analysis where measurement times are reduced by a factor of 1096 Results needing harmonic data will not be valid in this mode GO Fast mode off default G1 Fast mode on PAGE 10 7 IEEE COMMUNICATION PM3000A USER MANUAL 10 4 11 SINGLE HARMONICS FORMAT 00 99 Use in conjunction with F19 and F20 To read individual Harmonics Send Hxx and then F19 for V Harm xx or F20 for A Harm xx For example the following sequence progr
39. x 0 05 PF reading 5Hz to 1MHz 0 1Hz to 1MHz 0 1 DC and fundamental to 99th harmonic for voltage and current Max Harmonic 1MHz 0 1 reading 0 1 range kHzF x 0 02 reading 0 1 reading 0 1 range kHz x 0 04 reading 100 pA 0 1 reading 0 1 range kHz x 0 08 96 reading 100 uA KHz x 0 05 0 1 fundamental kHz x 0 01 0 2 fundamental 1 1 1 Ho 1 H 1 N B kHz Frequency of Fundamental component in kHz N B kHz Frequency of Harmonic component in kHz N B Specification using Harmonic series formula with dc excluded 11 12 INTEGRATOR Range Integration Interval Elapsed Time Display 0 001 Whr to 100 000MWhr 1 Second 7 Digit Floating Decimal Point PAGE 11 4 PM3000A USER MANUAL SPECIFICATION 11 13 BANDWIDTH A low bandpass filter is applied at power up It can be deselected using the BANDWIDTH key Unfiltered Bandwidth DC to 500kHz Filtered Bandwidth Std amp 001 models DC to 25kHz Specified Accuracies Achieved to 12 5kHz 002 model DC to 5kHz Specified Accuracies Achieved to 2 5kHz 11 14 CHART RECORDER OUTPUTS Functions All except Peaks Harmonics and Inrush Current Number of Outputs 8 Output Levels to 5V 5mA max Update Rate 0 5 seconds 11 15 EXTERNAL FREQUENCY SOURCE Input 1 to 10Vrms 0 1Hz 1MHz 10kQ input impedance N B Negative inputs see a reverse diode very high impedance 11 16 EX
40. 0 BSE 4 Enable AVF Bit in Background Status Enable Register output 10 TRG Trigger background analysis Spoll until Bit 2 goes high Spoll 10 Spoll 10 Output 10 BRD CH1 Receive data until END Data Return Format 46 NR3 s WATT AMP PF ATHD series formula Aharm0 Aharm40 FETCH IEC555 HARMONIC DATA Class device command Return type multiple NR3 or NR1 numeric response data separated by commas terminated by string response data END Format 1EC FLU FLI FLM IFS Options FLU Fluctuating harmonic mode FLI Changing voltage FLM Flickermeter IFS Instantaneous flicker sensation Return format FLU 86 NR3 s Freguency Run time Status Watts Voltech reserved value Voltech reserved value Ahrm 1 Ahrm40 Vhrm1 Vhrm40 FLI 40 NR1 s bin1 bin2 bin40 FLM 1028 NR3 s Frequency DC DMAX DT bin1 bin1024 PAGE 10 33 IEEE COMMUNICATION PM3000A USER MANUAL Example Notes In the default mode 8 returned results appear on one line The ENTER 10 command must be repeated to continue reading the sequence The whole data sequence is terminated with the word END In single reply string mode set up by CFG 276 1 the whole data sequence appears as one string with values separated by commas A single ENTER 10 command can be used to read the whole string The characters END do not form part of the string IFS 2 NR3 s Instant
41. 0 Ohm Current 40 Amp Printer PAGE 5 21 THE FUNCTION MENUS PM3000A USER MANUAL 5 10 9 VOLTAGE CALIBRATION CONNECTION LO O O DVM eg DATRON 1271 HI MAX 1500V pk MAX 1500V pk AT JA soars MR S ms 9 Sz LO gt aly ok EXT 2 5V pk EXTA 290 ext O Er BP exr Voltage Generator 0 1000 V 120Hz PAGE 9 22 PM3000A USER MANUAL THE FUNCTION MENUS 5 10 10 CURRENT CALIBRATION CONNECTION O O DVM eg DATRON 1271 ER CH 1 T ww MAX wa MAX MAX Vo 1500V pk 7 E 1500V pk V _ 80V pk LO O LO MAX 2000V Ez MAX2000V HI HI UM HI MAX i MAX 30A RM A p 30A RMS 1 000 Ohm 2 Amp 0 1000 Ohm 2 Amp LO SUN MAX 25 ok 2 5V pk 2 5V pk 0 ex O eT Short Lead to Generator 2 Current Generator 0 30 Amp 8 120Hz PAGE 5 23 THE FUNCTION MENUS PM3000A USER MANUAL 5 10 11 EXTERNAL CURRENT CALIBRATION DVM eg DATRON 1271 AIA CH1 Oy O O Lo L 1o 6 to 6 i ES SIUS y 30A RMS ES S LO QLo Q LO ook 290 d 2 pk EXT Twisted Short Leads 1 000 Ohm Current Generator 0 30 Amp 120Hz PAGE 5 24 PM3000A USER MANUAL ADVANCED CONFIGURATION CHAPTER 6 ADVANCED CONFIGURATIO
42. 000A into its standard power up mode and allow at least 30 minutes for the analyzer to reach a stable temperature Follow the instructions in the previous section until the following display appears CHANGE CONFIGURATION gt yes lt PAGE 5 16 PM3000A USER MANUAL THE FUNCTION MENUS If gt yes lt is selected the instrument can be re configured as a single phase two phase or three phase instrument Press the SELECT key to display gt no lt and then press ENTER to continue to the next display SELECT CHANNELS CH1 CH2 CH3 You can deselect and reselect each of the channels to be simultaneously calibrated by pressing the CHANNEL SELECT keys If all three channels are to be calibrated together press ENTER The next display shows CALIBRATE VOLTS gt yes lt Press ENTER for the voltage calibration routines Press SELECT to display gt no lt followed by ENTER if the voltage channels do not need calibration 5 10 4 VOLTAGE RANGE CALIBRATION The display shows VR1 input 200mV rms Value in V gt 0 000 lt If you wish to by pass the calibration of this range press ENTER and the program will move on to the next range To calibrate the range set the voltage generator output to approximately the value requested on the display 410 and allow it to settle Key in the measured value from the digital multimeter Enter the data in volts e g 0 200V Press ENTER The voltag
43. 001001 GOSUB delay 5 PRINT 1 OUTPUT 10 L15 1 GOSUB delay 5 PRINT 1 OUTPUT 10 T1 GOSUB delay 5 GOSUB spoll WHILE a lt gt END OF DATA PRINT 1 ENTER 10 LF INPUT 2 a LPRINT a WEND WHILE spoll lt gt 3 PRINT 1 SPOLL 10 INPUT 2 spoll spoll spoll AND 3 WEND RETURN IF t2 t1 lt 5 THEN GOTO 1 RETURN PAGE 10 16 PM3000A USER MANUAL IEEE COMMUNICATION 10 6IEEE 488 2 OPERATION It is first necessary to enable IEEE operation as described in sections 10 1 and 10 2 Use the front panel keys to enable IEEE488 1 and IEEE488 2 10 6 1 COMMAND STRUCTURE Commands and replies are passed as a sequence of ASCII letters and numbers terminated by either a line feed or an EOI hardware signal for end of instruction Upper and lower case letters are treated equally and all white space characters are ignored Thus to set manual voltage range 6 output 09 RNG VLT FIX 6 output 09 rng vit fix6 output 09 Rng VIt Fix 6 have exactly the same effect although it takes longer to transmit strings with more characters Commands may be of one oftwo types common or device Common commands and common queries apply universally to all instruments and are preceded by the character e g output 09 TRG The manufacturer of each instrument defines device commands and Voltech instruments device commands are preceded by the character e g output 09 RNG VLT FIX 6
44. 00A USER MANUAL RAO5 Selects 1 0 Amp Peak range manual RA12 Selects 200 Amp Peak range manual RAO6 Selects 2 0 Amp Peak range manual The commands RA01 RA12 reset the display and background averaging The auto ranging command RADO has no effect on averaging 10 4 23 INTERNAL EXTERNAL SHUNT SELECTION FORMAT 5 0 1 This command selects the internal shunt or external voltage input for the current channel 50 The AMPS input is taken from the 30 amp shunt S1 The AMPS input is taken from the external input This command resets the display and background averaging 10 4 24 TRIGGER FORMAT Triggers the instrument to take a reading after the B1 command has been sent Selected results mode T1 selected results will be prepared for output after the next measurement cycle 10 4 25 PARALLEL PORT CONTROL FORMAT U 00 63 Controls the lowest six bits on the parallel port UOO Resets bits 0 5 Sets bits 0 1 Resets bits 2 3 4 5 The parallel port may be utilized with this command to switch external logic The Centronics printer must be enabled for this function to operate 10 4 26 ANALOGUE OuTPUTS ONLY SELECTION FORMAT W 0 1 Converts the signal on each input channel to a 0 5 Volt analog output WO Turns off the analog outputs W1 Turns the analog outputs on All other functions are suspended while the analog outputs are enabled This command will be ignored if the integrator is running Analog conne
45. 18 see section 6 1 To view another harmonic press A HARM again and repeat the above procedure or press ENTER for the next highest order harmonic Harmonic phase information is not displayed in the multiple channel display To get a printout of all harmonics up to a pre set limit use the printer selection menu see section 8 1 Watts harmonics can also be selected for print if both volts and current harmonics are selected PAGE 3 9 BASIC FUNCTIONS PM3000A USER MANUAL 3 3 3 3 3 4 3 3 5 3 3 4 V THD VOLTAGE HARMONIC DISTORTION MEASUREMENTS The distortion factor of the voltage waveform can be measured by pressing the V THD key The result is obtained by the calculation RMS HY df x 100 REF where REF is normally the fundamental component It can be set to RMS see F P 17 section 6 1 This method is known as the difference formula This measurement takes into account all distortion including noise and DC offsets This will give very good results with waveforms having greater than 2 distortion An alternative method which works well with any distortion level is to measure individual harmonics and calculate the total harmonic distortion with the formula thd VH 4 H574 where H2 is the 2nd harmonic percentage of reference and H3 is the third harmonic percentage of the chosen REF value The default for the front panel display values is the difference formula
46. 2 2 EMC PRECAUTIONS 12 2 1 CONDUCTED AND RADIATED EMISSIONS The PM3000A complies with the limits of BS EN 55022 Class A To ensure continued compliance the RS232 lead supplied for PC communications must be fitted with the ferrite at the end of the lead closest to the PM3000A Any other RS232 or Parallel Printer leads used should have a ferrite fitted at the end of the lead closest to the PM3000A 12 2 2 IMMUNITY The PM3000A may be susceptible to Fast Electrical Transients on the power line and Electrostatic Discharges which can disrupt the operation of the unit In the event of such an occurrence the PM3000A may be returned to normal operation as follows 1 Switch off the power 2 Wait 5 seconds 3 Switch on again PAGE 12 2 PM3000A USER MANUAL APPENDIX 1 APPENDIX 1 INDEX TO FUNCTION KEYS APPENDIX 1 PM3000A USER MANUAL PM3000A USER MANUAL APPENDIX 1 See also Appendix 2 Alphabetical Index W Watts 3 1 VA Volts Amps 3 1 Var Reactive Volts Amps 3 1 V Volts 3 2 A Amps 3 2 Power Factor 3 2 Vex Peak Voltage 3 3 Peak Current 3 3 Ver Voltage Crest Factor 3 3 CF Current Crest Factor 3 3 INRUSH A Peak Inrush Current 3 3 IMPEDANCE Impedance 3 4 W hr Watt Hours 7 1 VA Hours 7 1 Var hr VAr Hours 7 1 A hr Ampere Hours 7 1 AV PF Average Power Factor 7 1 CORR VAr Correction VArs 7 2 FUND Fundamental 3 10 V HARM Voltage Harmonic 3 9 A HARM Current Harmonic 3 9 V THD Volta
47. 3 The Summation Voltage for 304W wiring is normally calculated using the formula yv Vict V2 V3 43 The Summation Voltage can be calculated as the arithmetic mean for 304W wiring using F P 192 Vi NS 3 RS232 VERBOSE MODE The PM3000A defaults to Verbose mode with echoed data when communicating via the RS232 link This echo function can be disabled via this configuration setting DATA RETURN FORMAT Data is normally returned in multiple lines with 8 pieces of data on each line This requires a data return request to be issued to the analyzer at the end of each line In single reply string mode all of the data is returned in one string with a line feed as a terminator There is no END OF DATA appended to the data 0 Normal multi line reply string 1 Single reply string V A W F ONLY MODE By restricting the parameters computed by the analyzer communications speed is improved 0 Normal functions available 1 V A W and Frequency are the only measurements available DATA RETURN FORMAT Data is normally returned in 4 5 digit ASCII This configuration can set the returned data to 5 digit ASCII PAGE FEED Appends a printed document with a page feed PAGE 6 3 ADVANCED CONFIGURATION PM3000A USER MANUAL PAGE 6 4 PM3000A USER MANUAL INTEGRATOR CHAPTER 7 INTEGRATOR INTEGRATOR PM3000A USER MANUAL PM3000A USER MANUAL INTEGRATOR 7 1 INTEGRATOR
48. 5 Arms 6 PF 7 Vpeak 8 Apeak 9 Vcf 10 Acf 11 Imp 12 Vthd 13 Athd 14 Frq 15 Vmean 16 Amean 17 VAV 18 k Factor 19 P corr 20 Fund Watts 21 Fund VA 22 Fund Var 23 Fund Vrms 24 Fund Arms 25 Cos phi 26 Resistance 27 Reactance 28 Fund Vmean 29 Fund Amean 30 Voltage harmonics Magnitude 8 Phase angle 31 Current harmonics Magnitude amp Phase angle 32 Power harmonics Magnitude only Resistance and Reactance are returned if the SEL FUN fundamentals option is used when the SEL IMP command is issued Harmonics and BRD When retrieving harmonics with BRD the following should be noted 1 If coupling is set to AC DC Harm 0 Magnitude only will be the first harmonic sent Harm 0 will not be sent if coupling is set to AC 2 If Odd 8 Even harmonics are selected then both odd and even harmonics will be sent otherwise only odd harmonics will be sent 3 Only harmonics up to and including that specified in Maximum harmonic will be sent PM3000A 001 Auxiliary Inputs and BRD If auxiliary inputs are selected then data is returned in the following order Torque speed power efficiency END PAGE 10 22 PM3000A USER MANUAL IEEE COMMUNICATION BSE SET BACKGROUND DATA STATUS ENABLE REGISTER Class Retum type Format Options Data format Example Notes device command none BSE data none 0 255 o y y OVA AVF NDV DVL DVL data available enable OVV Voltage overload enable AVF
49. 5 7 F 7 PWM Drives Mode 5 10 5 8 F 8 Ballast Ultrasonic Mode 5 14 5 9 F 9 Transformer Test Mode 5 14 5 10 F 10 Calibration 5 16 TABLE OF CONTENTS PM3000A USER MANUAL CHAPTER 6 ADVANCED CONFIGURATION PAGE 6 1 F P Configuration 6 1 CHAPTER 7 INTEGRATOR PAGE TA Integrator Measurements 7 1 7 2 Integrator Menu 7 2 CHAPTER 8 INTERFACES PAGE 8 0 Interface Menu 8 1 8 1 Printer Interface 8 1 8 2 IEEE Interface 8 3 8 3 RS232 Interface 8 3 8 4 Chart Recorder Interface 8 5 8 5 Analogue Output Interface 8 6 8 6 Auxiliary Inputs 8 8 CHAPTER 9 DATALOG PAGE 9 1 Datalog Overview 9 1 9 2 Cycle by Cycle Analysis 9 1 9 3 Datalog 9 3 CHAPTER 10 IEEE COMMUNICATION PAGE 10 1 IEEE488 Overview 10 1 10 2 Addressing 10 2 10 3 Data Sources 10 2 10 4 IEEE 488 1 Operation 10 3 10 5 Example IEEE 488 1 Program 10 14 10 6 IEEE 488 2 Operation 10 17 10 7 Program Timing 10 49 10 8 VPAS Demonstration Software 10 50 PM3000A USER MANUAL TABLE OF CONTENTS CHAPTER 11 11 1 11 2 11 3 11 4 11 5 11 6 11 7 11 8 11 9 11 10 11 11 11 12 11 13 11 14 11 15 11 16 11 17 11 18 11 19 11 20 11 21 11 22 CHAPTER 12 12 1 12 2 APPENDIX 1 APPENDIX 2 APPENDIX 3 SPECIFICATION Voltage Current Power Apparent Power Reactive Power Power Factor Crest Factor Inrush Current Impedance Frequency Harmonic Analysis Integrator Bandwidth Chart Recorder Outputs External Frequency Source External Trigger Input Operati
50. 8 36 38 46 115 126 127 135 136 190 LOW VALUE BLANKING If the PM3000A is operated in manual ranging or if the lowest range is operating in autoranging the display value will blank to zero if the voltage or current falls below a given value If however you want to observe the blanked value the blanking can be disabled through this option RANGE LOCKING The normal mode of operation is that the PM3000A responds to the maximum input on all three channels This is locked operation The ranging can be made independent through this option Once selected each channel will range according to the level of inputs experienced by that channel or to a pre set fixed range LOAD FIXED CHANNEL 1 FREQUENCY When enabled this option allows you to use existing measured frequency as the frequency reference source for later measurements It is used for example in the PWM MODE when measuring harmonics above the filter cut off frequency CH1 AVERAGING DEPTH This option allows the averaging depth to be set from 1 to 64 It is useful for reconfiguring the depth for AUTO mode see section 3 2 3 The equivalent F P setting for CH2 is 58 and CH3 is 78 RMS MEAN MEASUREMENT MODES The voltage and current can be displayed in either true RMS or rectified MEAN values This option allows you to select between the two modes INTEGRATOR DISPLAY This option allows selection of gt accumulated lt integrator values e g W
51. A LOG PM3000A USER MANUAL 9 2 1 SETTING UP CYCLE BY CYCLE MODE Choose gt enabled lt for CYCLE BY CYCLE LOG and the next display will be LOG SAMPLES CYCLES gt 1860 lt Use the digit keys to input the number reguired and then press ENTER The maximum is 1860 31 seconds at 60Hz The display will then show EXTERNAL TRIGGER LOG gt disabled lt Analysis can be triggered via the front panel START key the rear trigger input or the IEEE LOG TRG or EXT CYC x command x number of cycles Use the SELECT and ENTER keys to choose gt disabled lt or gt enabled lt for the rear panel trigger input as reguired The display will then show DATALOG SET MANUAL RANGE In cycle by cycle mode the auto ranging feature is disabled and the user must set the correct volts and amps range to suit the intended measurement The ranges should be set higher than the maximum peak input likely to occur For example if an inrush of about 20 amps peak is expected the 50 amp range should be chosen Use the up and down arrow keys beneath the appropriate LED array to select a measurement range for voltage and current and then press ENTER The display now changes to DATALOG waiting for trigger The measurements will then commence after the trigger has been received and the lower display line will show triggered For local operation the data is output to the selected printer port parallel or RS232
52. AST MODE BANDWIDTH SELECTION BAUD RATE CALIBRATION CHANNEL SELECTION CHANGING VOLTAGE CHART RECORDER SETUP CLOCK SETUP COMMON MODE SPECIFICATIONS CONFIGURATION NUMBER LISTING CONNECTION DIAGRAMS CONTROL KEYS CORRECTION VARS COUPLING CREST FACTOR CT SCALING CURRENT A CURRENT HARMONICS CURRENT TOTAL HARMONIC DISTORTION CURSOR HOME CYCLIC INTEGRATION CYCLE BY CYCLE ANALYSIS D DATADUMP KEY DATALOG SETUP DATALOG SAMPLE RATE DATA SOURCES DC SPECIFICATION DECLARATION OF CONFORMITY DISPLAY FORMAT DISPLAY UPDATE RATE PAGE NUMBER QQoomgvooooo o goN 0 PAGE NUMBER 5 14 5 1 8 3 PAGE NUMBER 5 16 2 2 5 6 8 5 3 8 11 1 e Q9 CO NI 2 KNOONOOOND OND PAGE NUMBER a MUNO eN 2 2 N Ow APPENDIX 2 PM3000A USER MANUAL EC DIRECTIVES EFFICIENCY EFFICIENCY FORMULA ENTER KEY EQUIPMENT CHECKLIST EXTERNAL FREQUENCY INPUT EXTERNAL SHUNT EXTERNAL TRIGGER F P CONFIGURATION FILTER CALIBRATION FIXED AVERAGING FIXED FREQUENCY FIXED HARMONICS FLICKERMETER FLUCTUATING HARMONIC MODE FREQUENCY MEASUREMENT FREQUENCY SOURCE FULL COMPLIANCE TESTING FUND KEY FUSE RATING HANDSHAKING HARMONIC ANALYSIS HARMONIC ACCURACY SPECIFICATION HARMONIC DISPLAY HARMONIC REFERENCE HARMONIC SERIES HIGH BANDWIDTH MODE HOLD FUNCTION IEC555 MODE IEC76 1 IEC1000 3 SoFTWARE FO
53. Auto or Manual 12 ranges 1 2 5 seguence Scaling Factors Computation Crest Factor Frequency Range Accuracy 23 5 C 0 2V 1000Vrms All models Effect of Common Mode Voltage Maximum Input Input Impedance Range Auto or Manual 12 ranges 1 2 5 sequences Scaling Factor Computation Crest Factor Frequency Range Accuracy 23 5 C 20mA to 30Arms Std amp 001models 002 model 80mA to 30Arms Effect of Common Mode Voltage Maximum Input DC 45 to 450Hz 0 1Hz to 500kHz 1000Vrms 60Hz 100Vrms 100kHz Continuous 1 second 11 2 CURRENT A INT INT EXT DC 45 to 450Hz 0 1Hz to 250kHz 250 to 500kHz DC 45 to 450Hz 0 1Hz to 250kHz 250 to 500kHz 1000Vrms 60Hz 100Vrms 100kHz Continuous 1 second EXT 0 5V to 2000Vpk 1400V rms 0 001 to 99999 True rms or rectified mean Up to 20 DC and 0 1Hz to 500kHz 0 05 reading 0 05 range 1mV 0 05 reading 0 05 range 0 1 reading 0 05 range 0 02 kHz Less than 20mV Less than 500mV 1V 002 model 1500Vpk 5000Vpk 1 MQ in parallel with 10pF all ranges 0 05A to 200Apk 30A rms 6 25mV to 2 5Vpk 1 5Vrms 0 00001 to 99999 0 8uA mV to 8000A mV True rms or rectified mean Up to 20 DC and 0 1Hz to 500kHz 0 05 reading 0 05 range 200uA 0 05 reading 0 05 range 100uA 0 1 reading 0 05 range kHz x 0 04 reading 100 0 1 reading 0 05
54. BACKGROUND STATUS Read by BSR or in summary by STB BAS bit DVL set to indicate the availability of data NDV set to indicate that new data has become available since the last BSR command AVF set to indicate that the averaging is full to the specified depth OVA set to indicate current range overload has occurred OVV set to indicate voltage range overload has occurred PAGE 10 18 PM3000A USER MANUAL IEEE COMMUNICATION 10 6 2 3 DISPLAY DATA STATUS Read by DSR or in summary by STB DAS bit DVL set to indicate the availability of data NDV set to indicate that new data has become available since the last DSR command AVF set to indicate that the averaging is full to the specified depth OVA set to indicate current range overload has occurred OVV set to indicate voltage range overload has occurred 10 6 2 4 STANDARD EVENT STATUS Read by ESR on in summary by STB ESB bit OPC operation complete data available QRE un terminated query error EXE execution error CME command error PAGE 10 19 IEEE COMMUNICATION PM3000A USER MANUAL 10 6 3 AVAILABLE COMMANDS AUX Class Retum type Format Options Example Notes Class Retum type Format Options Example AUXILIARY INPUT CONTROL device command none AUX DIS ENB SIU range scale USU range scale PLS pulse VLT range scale DIS disable ENB enable SIU Sl units Nm and W USU US units ftlb and HP PLS pulse speed input VLT vol
55. D gt output 10 CFG 21 1 The prog number is the program selected from the configurable list e g 21 will select F P 21 Fixed frequency enabled See end of commands listings for configuration list CFG Class Return type Format Options Return format Example READ CONFIGURATION device query NR1 numerical response data or NR3 numerical response data CFG prog prog integer program location 0 282 integer or floating point data as appropriate CMD gt output 10 CFG 21 CMD gt enter 10 1 PAGE 10 25 IEEE COMMUNICATION PM3000A USER MANUAL CLEAR STANDARD EVENT STATUS REGISTER Class Retum type Format Options Return format Example Notes common command none CLS none none CMD gt output 10 CLS Clearing this register leaves OPC set to 1 CPL Class Return type Format Options Return format Example SET AC DC COUPLING device command none CPL DC DC DC set AC DC coupling DC set AC only coupling none CMD gt output 10 CPL DC DSE SET DATA STATUS ENABLE REGISTER Class Return type Format Options Data format Example Notes device command none DSE data none 0 255 Jova avF NDV DVL DVL data available enable OVV Voltage overload enable AVF averaging full enable OVA Current overload enable NDV new data available enable CMD gt output 10 DSE 2 The DAS bit in the serial poll status byte i
56. ENCE gt Voltage lt By pressing SELECT the user can switch between voltage and current as the phase reference source for harmonic analysis Press ENTER to confirm the selection Either the red or green LED beneath the FREQ SOURCE key will illuminate to indicate the status VOLTS AMPS RMS oR MEAN The PM3000A can display voltage and current in either true RMS or rectified mean values RMS mode is the default and this is indicated by the corresponding LED beneath the key In the mean mode voltage current and amp hours only are displayed as rectified mean values All other parameters are displayed as RMS However when printing results all values are printed as RMS AVG AVERAGING The PM3000A will average a number of measurements to display a steady reading despite fluctuations at the inputs The results to be averaged are placed in an averaging store of user defined length When a new result is added to the store the oldest result in the store is discarded PAGE 3 5 BASIC FUNCTIONS PM3000A USER MANUAL 3 2 4 3 2 5 3 2 6 In AUTO mode the instrument will average the last 16 results If a large change occurs at the input the averaging store is reset all values are made zero and only new data is averaged This gives a fast response to large input changes The number of results averaged the averaging depth in AUTO mode can be changed by using the configuration keys F P 38 see section 6 1 For inde
57. Example common command none RST none none CMD gt output 10 RST This command resets the standard configuration SET RETRIGGER MODE device command none RTR ENB DIS ENB retrigger after completion of next trigger DIS do not retrigger None CMD gt output 10 RTR ENB After sending RTR ENB to initialize the re trigger function followed by TRG the PM3000A will start measuring and accumulating averages When it reaches the maximum number of measurements for the average it will reset and start averaging again This process will continue indefinitely until either the PM3000A is reset or RTR DIS is sent At any time during the process BRD can be sent and the latest complete average will be read back If retrigger is not selected when the average is complete the results will be stored and there will be no further measurement The results may then be read when required device command none SCL VLT scale AMP set voltage scaling set current scaling VLT AMP none CMD gt output 10 SCL AMP 99 34 Scaling values can be sent in any of the below example PAGE 10 38 PM3000A USER MANUAL IEEE COMMUNICATION Class device command Return type none Format SEL CLR Clear CH1 Channel 1 CH2 Channel 2 CH3 Channel 3 CHN Neutral Channel SUM Sum Channel FUN Fundamentals WAT Watts VAS VA VAR VAr VLT Volts AMP Current PWF Power factor VPK Volts peak APK Current peak VCF Voltage crest factor ACF C
58. GRATOR gt disabled lt Use the SELECT and ENTER keys to enable the integrator The display will then show INTEGRATOR CONTROL gt trigger lt Use the SELECT and ENTER keys to choose between trigger and timed operation Assuming trigger operation has been selected the display will now show EXTERNAL TRIGGER INT gt disabled lt If manual operation is required press the ENTER key to disable the external trigger The display will show INTEGRATOR RUN TIME HH MM gt 00 00 lt PAGE 7 2 PM3000A USER MANUAL INTEGRATOR 7 2 1 7 2 2 Use the digit keys to enter the time for which the integrator will run after manual triggering pressing the START RESET key If the integrator is to run continuously until the STOP key is pressed enter a time of 00 00 Use the SELECT and ENTER keys to enable or disable printed output The LED beneath the integrator key will be illuminated and the system waits for the manual trigger To start the integrator press the START RESET key The LED under the start key will turn on to indicate that the integrator is running Pressing any of the integration function keys will display the run time in hours and value of the integrated parameter If RUN TIME was set to 00 00 the integrator can now be reset or stopped To reset press the START RESET key again The integrator will be reset and restarted Each time the integrator is reset the sel
59. Hours 4 Volts 16 Amp Hours 5 Amps 17 Average Power Factor 6 Power Factor 18 Not Used 7 Volts Peak 19 Not Used 8 Amps Peak 20 Voltage Harmonics 9 Volts Crest Factor 21 Amps Harmonics 10 Amps Crest Factor 22 Volts Distortion Factor 11 Not Used 23 Amps Distortion Factor 12 Impedance 24 Frequency E g to store Ch 1 Watts Volts Amps and Freq no fundamentals B1 01 0 100110000000000000000001 Ch 1 2 3 Volts Amps V Peak A Peak V THD A THD with fundamental Volts and Amps B1 07 1 0001101100000000000001 10 Ch 1 2 3 SUM Neutral Volts Amps Freq Amps Harmonics 0 20 no fundamentals B1 31 0 000110000000000000001001 then send L20 0 to set the maximum harmonic at 20 Once the B1 command has been set the PM3000A will measure and average all the functions selected However nothing will be entered into the results store until a trigger command T1 is sent At the end of the next measurement cycle the averaged results will be stored and may be read sequentially over the bus A further trigger T1 will enable the store to receive a new set of results at the end of the next measurement cycle The B1 command should not be used in a multi line command 10 4 4 DATA OUTPUT SOURCE INTEGRATOR FORMAT 2 2 Allows access to the integrator result store The integrator store is filled by the integrator stop 10 command and can be read seguentially following 2 The integrator results inc fu
60. Hr or gt averaged lt values e g W average for the integrator period CURSOR HOME The PM3000A can be connected to a PC via RS232 and configured to send Print mode results to the screen using the DATA DUMP key for remote monitoring Using a VT100 or VT320 terminal and this configuration Print Mode results can be displayed with each Dump beginning at the top left hand corner of the screen rather than scrolling from the bottom of screen DISPLAY MODE In communications control the display will show Communications Control instead of updating the display measurements Communications speed is improved 0 Normal display mode 1 Communications control display mode HARMONIC SERIES This option allows selection of gt odd only lt or gt odd and even lt harmonics in the harmonic series for THD or printout MAXIMUM HARMONIC This option allows selection of the maximum harmonic in the harmonic series for THD or printout POWER FACTOR POLARITY This may be reversed from the normal applied convention by enabling this option PAGE 6 2 PM3000A USER MANUAL ADVANCED CONFIGURATION 191 192 275 276 277 279 282 SUM A A4 A2 A3 3 The Summation Current is normally calculated using the formula gt VA a The Summation current can be calculated as the arithmetic mean of the 20 or 30 channel inputs using F P 191 304W 193w303w GTA SUM V V4 V2 V3
61. ICIENCY SCALING NR3 274 TRANSFORMER MODE NR1 0 off 1 Vav 2 k fctr 3 P corr 275 RS232 VERBOSE MODE NR1 0 disable 1 enable 276 SINGLE REPLY STRING NR1 0 disable 1 enable PAGE 10 47 IEEE COMMUNICATION PM3000A USER MANUAL 277 Vrms Arms W ONLY NR1 0 disable 1 enable 278 CHANNEL 3 DC BUS NR1 0 disable 1 enable 279 Data Return Format NR1 0 4 5 digit ASCII 1 5 digit ASCII 280 CYCLE BY CYCLE LOG NR1 0 disable 1 enable 281 HARMONIC WINDOWING NR1 0 disable 1 enable 282 PAGE FEED NR1 0 disable 1 enable 10 6 4 1 SETTING DATES USING THE CFG COMMAND Each date is stored as a 16 bit number between 0 65535 The way the address is translated to this number is shown below YYYYYYY MMMM DDDDD Year after 1900 Month Day The number given is added to 1900 to give a valid year range of 1900 Valid Number Ranges Year 0 127 2027 Month 1 12 Day 1 31 Note Should an invalid date be entered then the date will revert to 00 00 00 10 6 4 2 EXAMPLE For an example date of 20 July 1969 the conversion to a 16 bit number would go as follows Show the dateas3 20th July 1969 appropriate numbers 20 07 69 Then convert each ES digit to binary 10100 0111 1000101 Then convert the 1000101011110100 16 bit binary number Year Day Month to decimal 35572 Depending upon whether it is for an integrator start or stop the ex
62. INTEGRATION option is gt enabled lt after inputting the start and stop dates times for the integration period see above the next display is as follows CYCLIC INTERVAL HH MM gt 00 00 lt Use the digit keys to enter the cycle interval Use SELECT if you make a mistake whilst entering the time Press ENTER when the interval is correct Next enter the reset period in hours HH and minutes MM and press ENTER There is then the option to configure the printer as described earlier and the integrator will then run between the start and stop times and printout at each cyclic interval TIMEBAND INTEGRATION If CYCLE INTEGRATION is gt disabled lt the display prompts for timeband resets B1 B2 B3 B4 and B5 Enter each band reset time in hours HH and minutes MM and press ENTER If not all resets are needed skip them by pressing ENTER without selecting a time There is then the option to configure the printer as described earlier The integrator will then integrate between start and stop times resetting and printing out results printer enabled at each timeband setting If the integrator is set over several days the timeband resets will continue in a cyclic manner for each day of the period B1 B2 B4 B5 Integrator Integrator Start Stop This option is useful for monitoring and costing consumption over different tariff bands Time PAGE 7 4 PM3000A USER MANUAL INTERFACE SET UP CHAPTE
63. Meter produces flicker values of Pst or Pst and Plt where Pst is the short term flicker severity evaluated over a short period in minutes and Pit is the long term flicker severity evaluated over a long period a few hours using successive Pst values IEC set limits for Pst 1 and PIt 0 65 where a Pst gt 1 or Plt gt 0 65 indicates that the equipment under test causes flicker that exceeds the acceptable level The PM3000A can measure flicker by the Voltage Method which provides full compliance testing and by the Current Method which is not part of the IEC 868 Flickermeter Standard but provides very effective pre compliance testing FULL COMPLIANCE TESTING Equipment Required AC Power Source Source Impedance PM3000A PC Printer Note 1 The AC power source must meet stability and distortion requirements of the EN60555 61000 3 3 standards Note 2 Source Impedance of 0 40 0 250 must meet specification of the standards The PM3000A monitors the voltage fluctuations and performs a series of filter functions digitally to produce an instantaneous flicker level This flicker level is classified into 1024 logarithmically scaled Bins to provide a 1024 level classifier At the end of the observation period the PC reads the values in the Bins and creates a Cumulative Probability Function representing the probability of exceeding a particular flicker level for a given percentage of the observation ti
64. N ADVANCED CONFIGURATION PM3000A USER MANUAL PM3000A USER MANUAL ADVANCED CONFIGURATION 6 1 F P CONFIGURATION The F and P keys pressed consecutively provide a greater selection of instrument configuration Press F then P followed by the required number from the selection list below and then ENTER Use the SELECT key to highlight the required configuration setting e g harmonic series for F P 16 or a digit key for a display with numeric information e g 5 for F P 13 Then press ENTER Note that only the most common F P selection numbers are shown below for full list refer to CONFIGURATION LISTING under section 10 6 4 0 10 16 17 18 19 20 21 22 MANUAL ZERO To reduce the current and voltage offsets a zeroing calibration can be carried out Each of the inputs should be shorted together and MANUAL ZERO should be selected The instrument will proceed to self calibrate for each measurement range LANGUAGE MODE The default display language is English Using this option it can be changed to the desired language THD FORMULA The displayed THD value may be calculated from the difference formula or from series THD see section 3 3 3 If calculated from series THD the background averaging is used and the displayed value is updated each time the averaging is filled The top line continues to be updated at the normal rate The default setting is the difference formu
65. OP DATE NR1 0 65535 yyyyymmmmdddddd 107 INTEGRATE START TIME NR1 0 65535 in minutes 108 INTEGRATE STOP TIME NR1 0 65535 in minutes 109 INTEGRATOR BAND B1 NR1 0 65535 in minutes 110 INTEGRATOR BAND B2 NR1 0 65535 in minutes 111 INTEGRATOR BAND B3 NR1 0 65535 in minutes 112 INTEGRATOR BAND B4 NR1 0 65535 in minutes 113 INTEGRATOR BAND B5 NR1 0 65535 in minutes 114 INTEGRATOR RUN TIME NR1 0 65535 in minutes 115 INTEGRATOR FUNCTIONS NR1 0 accumulated 1 averaged 116 PWM OUTPUT VOLTS NR3 117 PWM OUTPUT AMPS NR3 118 PWM OUTPUT WATTS NR3 119 PWM INPUT WINDOW NR3 units of seconds 120 PWM OUTPUT RANGE NR1 1 5 Hz to 1kHz 2 0 5Hz to 50Hz 3 0 1Hz to 40Hz 4 5Hz to 1 kHz 121 ENABLE IEEE488 NR1 O disabled 1 enabled 122 IEEE ADDRESS NR1 1 30 123 IEEE Std 488 2 NR1 0 disabled 1 enabled 124 ENABLE RS232 NR1 0 disabled 1 enabled 125 RS232 BAUD RATE NR1 0 38400 1 19200 2 9600 3 4800 4 2400 5 1200 126 RS232 CURSOR HOME NR1 O disabled 1 enabled 127 REMOTE DISPLAY NR1 O disabled 1 enabled 128 N A 129 IEC555 MODE NR1 0 disable 1 fixed harmonics 2 fluctuating harms 3 changing voltage 4 flicker meter 130 ENABLE PRINTER NR1 0 disabled 1 enabled 131 MANUAL TRIGGER PRN NR1 0 disabled 1 enabled 132 EXTERNAL TRIGGER PRN NR1 0 disabled 1 enabled 133 TIMED TRIGGER PRN NR1 0 disabled 1 enabled 134 PRINT MODE NR1 0 display 1 selection
66. OUTPUT MODE time date PAGE 8 6 PM3000A USER MANUAL INTERFACE SET UP The waveforms will now be output to the analogue connector Cancel this mode by pressing the INTERFACE key See the table below for pinout details WIRING PIN WAVE FORM SINGLE PHASE TWO WIRE SINGLE PHASE THREE WIRE THREE PHASE THREE WIRE THREE PHASE FOUR WIRE 13 15 2 16 EVEN 13 15 2 16 EVEN 2 16 EVEN CH1 AMPS CH1 VOLTS SCOPE TRIGGER GROUND CH1 AMPS CH1 VOLTS CH2 AMPS CH2 VOLTS NEUTRAL AMPS SCOPE TRIGGER GROUND CH1 AMPS CH1 VOLTS CH2 AMPS CH2 VOLTS NEUTRAL AMPS SCOPE TRIGGER GROUND CH1 AMPS CH1 VOLTS CH2 AMPS CH2 VOLTS CH3 AMPS CH3 VOLTS NEUTRAL AMPS SCOPE TRIGGER GROUND ANALOGUE OUTPUT CONNECTOR Note that the neutral current will be output on a reduced scale compared to the other phase current PAGE 8 7 INTERFACE SET UP PM3000A USER MANUAL 8 6 AUXILIARY INPUTS If fitted with this option the PM3000A has two BNC input connectors on the real panel marked AUXILIARY INPUTS A and B Each input can accept a slowly fluctuating DC level of 0 1V or 0 10V menu selected from a signal conditioner connected to a motor tacho generator or torque transducer In addition the EXTERNAL FREQ BNC connector can be used to input a pulse signal from a transducer which is proportional to motor speed These features allow the user to monitor motor torque speed and mechanical pow
67. P RANGE CALIBRATION The display shows AR1 input 20mA rms Value in A gt 0 000 lt If you wish to by pass the calibration of this range press ENTER and the program will move on to the next range PAGE 5 18 PM3000A USER MANUAL THE FUNCTION MENUS To calibrate the range set the current generator output to approximately the value requested on the display 10 and allow it to settle Key in the measured value from the digital multimeter Enter the data in amps e g 0 020A Press ENTER The current will be measured on all three inputs and the calibration constants for each analogue channel will be calculated The display will then advise PASS or FAIL as for the voltage range Proceed as described in section 5 10 4 Repeat for all twelve ranges AR1 AR12 The display will then show INPUT 250mArms 20kHz enter to continue This allows the calibration of the low bandwidth filter 20kHz on standard and 001 models 4kHz on 002 models This step can be bypassed by pressing the F key which will cause the previously stored filter calibration to be retained Input 250mArms sinewave at the specified frequency then press the ENTER key The PM3000A will calibrate and after a few seconds will display CHANNEL 1 2 3 PASS or indicate the failed channels Press ENTER to continue The display will then show CALIBRATE EXTERNAL gt yes lt If the external inputs do not require calibration
68. R 8 INTERFACE SET UP INTERFACE SET UP PM3000A USER MANUAL PM3000A USER MANUAL INTERFACE SET UP 8 0 INTERFACE MENU 8 1 This key allows the user to program the digital and analogue interfaces of the PM3000A When pressed the display will show the following INTERFACE gt printer lt The SELECT key is used to display the options available and the ENTER key used to access a specific option gt printer lt gt IEEE488 lt gt RS232 lt gt chart recorder lt gt analogue outputs lt gt auxiliary inputs lt PM3000A 001 option only Each ofthese is described in more detail in the following sections PRINTER INTERFACE The printer used may be either a Atext printer with an RS232 serial interface b Atext printer with a parallel Centronics interface Centronics is the default but the output will be directed to the RS232 port if this interface is enabled see section 8 3 1 The printout can be from one of four sources a The results on the front panel display b The results from one or more channels c The integrator results d The datalog results PRINTING FRONT PANEL DISPLAY RESULTS Press the INTERFACE key and use SELECT and ENTER to gt enable lt the printer Then use SELECT and ENTER again to choose gt display lt The front panel display shows EXTERNAL TRIGGER PRN gt disabled lt To print use a manual trigger press ENTER to choose the gt disable
69. R WINDOWS IEEE INTERFACE IEEE 488 1 OPERATION IEEE 488 2 OPERATION IMPEDANCE KEY INDEPENDENT CHANNELS INDEPENDENT RANGING INRUSH A KEY INRUSH CURRENT INTEGRATOR MEASUREMENTS INTERFACE MENU JITTER K FACTOR PAGE NUMBER PAGE NUMBER 6 1 10 43 5 18 wo aw Qao o cg CT Q9 xi PAGE NUMBER 8 3 1 PAGE NUMBER 5 4 5 14 PAGE NUMBER 10 43 PAGE NUMBER 5 15 APPENDIX 2 PM3000A USER MANUAL L LANGUAGE MODE LOCAL KEY LOW VALUE BLANKING M MANUAL CALIBRATION MANUAL RANGE SETTING MANUAL ZERO MAXIMUM HARMONIC MEAN MEASUREMENT MODE MEASUREMENT MODES PAGE FEED PASSCODE PEAK CURRENT PEAK VOLTAGE PEAK INRUSH CURRENT PHASE ANGLE PHASE REFERENCE PHASE TO PHASE VOLTAGE POLARITY POWER FACTOR POWER ON DEFAULT POWER SOURCE PRE COMPLIANCE TESTING PRINTER SETUP PROGRAM SETUP PROGRAM SWITCH PROGRAM TIMING PWM MOTOR DRIVE MODE R RANGE LOCKING REAL TIME OUTPUTS REMOTE LED REACTIVE POWER VAR RESET KEY RMS MEASUREMENT MODE RS232 INTERFACE SCALING SET UP KEYS SHUNT INPUTS SINGLE REPLY STRING SPEED INPUT SPECIFICATION START KEY STATUS BYTE STOP BIT STORED SET UP SUMMATION SUMMATION FORMULAE SYSTEM OVERVIEW PAGE NUMBER 6 1 10 2 6 2 PAGE NUMBER 10 4 5 10 PAGE NUMBER 6 2 5 12 8 4 3 1 9 4 3 5 8 3 PAGE NUMBER o Qo Q Appendix 3
70. SEL CH1 SEL CH2 SEL CH3 SEL SUM CMD gt output 10 SEL VLT SEL AMP SEL WAT CMD gt output 10 LOG TRG CYC 10 CMD gt output 10 STB CMD gt enter 10 2 CMD gt output 10 LOG CYC CMD gt enter 10 0 62528 1 5934E2 3 576E1 results for cycle 0 CMD gt enter 10 1 0 1 5968E2 3 574E1 results for cycle 1 CMD gt The results read by the command LOG CYC have data in the following order Cycle Status integer both NR1 Frequency NR3 WATT VA VAr V A PF IMP for CH1 all NR3 WATT VA VAr V A PF IMP for CH2 all NR3 WATT VA VAr V A PF IMP for CH3 all NR3 WATT VA VAr V A PF IMP for all NR3 Torgue Speed both NR3 If more than 24 NR3 s are reguired per cycle single reply string mode should be used INITIALIZE OPERATION COMPLETE FUNCTION Class common command Retum type none Format OPC Options none Return format none Example CMD gt output 10 OPC PAGE 10 36 PM3000A USER MANUAL IEEE COMMUNICATION FLAG WHEN OPERATION COMPLETE Class Retum type Format Options Return format Example common guery NR1 numeric response data OPC none 1 CMD gt output 10 OPC CMD gt output 10 OPC CMD gt enter 10 1 PRG PROGRAM SET UP Class Return type Format Example device command none PRG LOD 1 5 Load Program SAV 1 5 Save Program CMD gt Output 10 PRG LOD 3 PWM Class Return type
71. TERNAL TRIGGER INPUT Closed switch to pass 5mA max Li close to trigger D BNC connector Case 11 17 OPERATING TEMPERATURE AND HUMIDITY Temperature 5 to 40 C Humidity 1096 to 8096 RH non condensing 11 18 DIELECTRIC STRENGTH Input to Case 4kV AC 50 60Hz for 1 minute Inputs to Power Supply 4kV AC 50 60Hz for 1 minute Input to Input 2kV AC 50 60Hz for 1 minute Power Supply to Case 2 9kV DC for 1 minute PAGE 11 5 SPECIFICATION PM3000A USER MANUAL 11 19 POWER SOURCE AC Input Voltage Protection Consumption 11 20 DIMENSIONS AND WEIGHT Dimensions Weight 100 to 220V 20 48 to 440Hz Fuse 20mm 1AT 30W 50VA max 420mm W 129mm H 406mm D 9kg 11 21 AUXILIARY INPUTS A AND B TORQUE AND SPEED 100 Hz 1MHz 0 1V DC software selectable 0 10V DC software selectable BNC rear panel connector Pulse Ext Frequency Input 0 5Hz 1kHz High Frequency Bipolar Input Type Accuracy Input Impedance 0 1 reading 0 1 range 10mV 20k2 over the normal operating range N B All stated accuracies are based upon a minimum AVERAGING DEPTH setting of 8 The default on power up is 16 PAGE 11 6 PM3000A USER MANUAL SPECIFICATION 11 22 WARRANTY This product is warranted against defect in materials and workmanship for a period of one year from date of shipment During the warranty period Voltech Instruments will at its option either repair or replace
72. able register PAGE 10 23 IEEE COMMUNICATION PM3000A USER MANUAL Class Return type Format Options Return format Example Example device command none CAL PWD pass CAL CH1 VLT range value CH2 AMP CH3 EXT ALL VFI AFI CAL END pass enter password to start calibration calibrate channel 1 only calibrate channel 2 only calibrate channel 3 only calibrate all channels calibrate voltage calibrate current calibrate external shunt voltage filter calibration current filter calibration end calibration and save values in EEPROM calibration password 0 9999 range to be calibrated 1 12 measured value CMD gt output 10 CAL PWD 1234 CMD gt output 10 CAL CH1 VLT 3 1 2345 CMD gt output 10 CAL END 1234 For the external shunt calibration only ranges 7 12 are directly calibrated due to the very low signal levels Having calibrated ranges 7 12 ranges 1 6 may then be calibrated with a derived value by a single CAL command e g CMD gt output 10 CAL PWD 1234 calibrate voltage current and external 7 12 CMD gt output 10 CAL CH1 EXT 6 CMD gt output 10 CAL END 1234 In this example the top 6 ranges 7 12 are explicitly calibrated then the lower 6 ranges are calibrated with the single command for range 6 any range less than 7 may be passed as the argument Note that the current ranges must be calibrated before the lower external ranges For filter calibration VFI and AFI the range parameter is re
73. alue from the digital multimeter Enter the data in volts e g 0 031V The display then shows 10V AUX input 9V dc Value in V gt 0 000 lt Repeat the above but with a 9V dc input Press ENTER and the calibration constants will be calculated The display will then advise PASS or FAIL for the two inputs similar to the voltage range Proceed as described in section 5 10 4 pressing ENTER to continue and or repeat the calibration as reguired Press ENTER to continue and repeat the above procedure for the 1V AUXILIARY RANGE The display will then show SAVE NEW CAL DATA gt yes lt To save any new calibration data press ENTER to select gt yes lt Press SELECT and then ENTER to return without altering the EEPROM contents PAGE 5 20 PM3000A USER MANUAL THE FUNCTION MENUS The next display will show PRINT CALIBRATION gt yes lt Connect a printer to the Centronics port and press ENTER to select gt yes lt if a printout is required Otherwise select gt no lt and press ENTER to end the calibration routine 5 10 8 RECOMMENDED EQUIPMENT The following equipment is required to calibrate the PM3000A 1 2 Datron 1271 or equivalent high accuracy true RMS digital voltmeter Current generator Current 0 30 Amps Frequency 120 Hz Voltage Generator Voltage 0 1000 Volts Frequency 120 Hz Shunts a Resistance 1 0000 Ohms Current 2 0 Amp b Resistance 0 1000
74. ample device command none WRG 1P2 1P3 3P3 1 2 set 1 phase 2 wire 1P3 set 1 phase wire 3P3 set 3 phase 3 wire 3P4 set 3 phase 4 wire CH3 set channel 3 only CH2 set channel 2 only MIX set 3 phase 3 wire plus independent channel ALL set independent channels PHP set phase to phase voltage 3 phase 4 wire only none CMD gt output 10 WRG 3P4 CMD gt output 10 WRG PHP PAGE 10 42 PM3000A USER MANUAL IEEE COMMUNICATION 10 6 4 CONFIGURATION NUMBER LISTING CFG COMMAND To change options via the front panel press F and P and then ENTER the relevant number Number Function Data Settings 0 MANUAL ZERO yes no 1 POWER ON PROGRAM NR1 0 standard 1 5 user program 2 TARGET POWER FACTOR NR3 3 N A 4 CHANNEL 3 ONLY MODE NR1 0 off 1 5 PROGRAM SWITCH NR1 0 off 1 6 N A 7 N A 8 N A 9 N A 10 LANGUAGE NR1 0 English 1 German 11 DISABLE ACQUISITION NR1 0 run 1 hold 12 HOLD DISPLAY NR1 O run 1 hold 13 WIRING CONFIGURATION NR1 0 1 phase 2 wire 1 1 phase wire 2 3 phase wire 3 3 phase 4 wire 4 channel 3 only 5 channel 2 only 6 independent ch3 7 all independent 14 PHASE LOCKING NR1 0 locked 1 independent 15 RS232 MODE NR1 0 computer control 1 printer 16 THD FORMULA NR1 0 difference formula 1 ha
75. ample date would be entered as Integrator start date 105 35572 Integrator stop date 106 35572 PAGE 10 48 PM3000A USER MANUAL IEEE COMMUNICATION 10 7 PROGRAM TIMING When writing programs to control the PM3000A Analyzer via the IEEE488 2 interface it may be necessary to insert delays to allow for the relative speeds of the controller and instrument The following example which is part of a program shows delays being used to stop any commands being written to the instrument after issuing a DVC command and to break up a long string of commands 150 characters which could overflow the input buffer A delay of 5 seconds must be issued after writing a DVC command to the instrument PRINT 1 OUTPUT 10 DVC GOSUB delay for 5 seconds PRINT 1 OUTPUT 10 SEL CLR PRINT 1 OUTPUT 10 SEL CH1 PRINT 1 OUTPUT 10 SEL VLT SEL AMP SEL WAT PRINT 1 OUTPUT 10 SEL VPK SEL APK SEL VCF SEL ACF PRINT 1 OUTPUT 10 SEL VAS SEL VAR SEL PWF PRINT 1 OUTPUT 10 SEL FRG SEL IMP SEL VDF SEL ADF PRINT 1 OUTPUT 10 TRG Wait for averaging to fill and read back results If the program is using serial polling and and for example the DSE has been set to 4 averaging full after issuing a TRG it will be necessary to poll for the averaging to be reset then to poll for the averaging to be set This restriction is due to the
76. ams the instrument to display the voltage harmonic 5 HO5F 19 This command resets the display averaging HOO Harmonic 0 dc H01 Fundamental component only H02 99 Harmonics 2 99 10 4 12 INTEGRATOR CONTROL This command allows control of the integrator function I1 Starts integration 10 Stops integration and stores all integrator values in the integrator result store The contents of the store may then be accessed with the B2 command see Data output control The integrator results may be read from the display at any time by the F12 F17 commands 10 4 13 AMPS ScALING FACTOR FORMAT 4J D U 1 99999 Sets amps scaling factors for all three channels Scaling up JU will multiply the result by the scaling factor Scaling down JD will divide the result by the scaling factor JU1000 Scale Amps up by 1000 1 JD10 5 Scale Amps down by 10 5 1 JU1 Set Scaling Factor 1 1 Scaling factor may not be less than one and may be no more than 5 digits plus decimal point The scaling LED will illuminate if a scaling factor of other than 1 1 is set for volts or amps This command must not be used in a multi command line Any commands following this will not be recognized PAGE 10 8 PM3000A USER MANUAL IEEE COMMUNICATION 10 4 14 VOLTAGE SCALING FACTOR FORMAT KU 1 99999 Sets voltage scaling factors for all three channels KU1000 Scale Volts up by 1000 1 KU10 5 Scale Volts up by 10 5 1 KU1 Set Scaling Factor 1 1 Scalin
77. and as such ensures the safety of the meter and the user when normal precautions are followed 2 The power source should be inserted in a socket with a protective ground contact 3 The power source should be inserted before connections are made to measuring or control circuits 4 Do not attempt to remove outer cover without first disconnecting auxiliary and test power supply 5 This instrument must only be serviced by gualified personnel who understand the danger of shock hazards 6 When the instrument is removed from its case hazardous voltages are present 7 The electronic circuitry of this instrument is fully floating with respect to ground If the instrument is opened and dangerous voltages above 50V peak applied to the input terminals then all the circuitry must be considered Live 8 The signal leads must be in good condition with no damage PM3000A USER MANUAL TABLE OF CONTENTS TABLE OF CONTENTS TABLE OF CONTENTS PM3000A USER MANUAL PM3000A USER MANUAL TABLE OF CONTENTS 1 1 Eguipment Checklist 1 1 1 2 Accessories 1 2 1 3 System Overview 1 3 2 1 Power On 2 1 2 2 Using the Control Keys 2 1 2 3 Connection Diagrams 2 4 3 1 Basic Measurement Function Keys 3 1 3 2 Set Up Keys 3 4 3 3 Harmonic Analysis 3 9 4 1 Programming 4 1 5 1 F 1 Power On Default 5 1 5 2 F 2 Bandwidth 5 1 5 3 F 3 Wiring 5 1 5 4 F 4 Efficiency 5 3 5 5 F 5 Program Switch 5 4 5 6 F 6 IEC 555 Testing Mode 5 4
78. ands in IEEE488 1 mode Terminate command strings with a line feed or assert EOI End or Identify with the last byte Upper and lower case are ignored with commands e g p4 or P4 are acceptable White space is ignored e g output p1 and output p1 are equivalent COMMAND SUMMARY A Averaging L Multiple harmonics select B Data output source display buffer M Service request switch integrator data log N AC DC coupling select C Channel select O Mean or RMS volts amps select D Display set up P Wiring select E Phase phase phase neutral switch Q Frequency source select 3phase 4wire R Range select RA amps RV volts F Parameter function select S Internal external shunt select G Fast mode switch T Trigger H Single harmonic select U Parallel port control Integrator switch W Analogue outputs only select J Amps scaling factor X Data log set up K Voltage scaling factor Y Fundamental display select 10 4 1 AVERAGING FORMAT A 00 64 This command selects the display and background averaging It resets the display and background averaging A00 Selects auto averaging 16 A01 A64 Selects the number of display and background averages PAGE 10 3 IEEE COMMUNICATION PM3000A USER MANUAL 10 4 2 DATA OUTPUT SOURCE DISPLAY FORMAT 0 BO will return the contents of the 40 character display buffer ensure IEEE488 2 is disabled for this command The results seen on the display will be returned in a 40 charac
79. anel to allow convenient access to these modes of operation These and other modes may also be accessed via the menu system as follows Press the F key and then use SELECT until the display is as shown below F 3 WIRING lt select gt or lt enter gt Press ENTER to display the Wiring Configuration options Use the SELECT key to cycle through the options and press ENTER to confirm the required setting The options are covered in more detail below 1 PHASE 2 WIRE Select for single phase loads on a 2 wire distribution system Also use to measure the output of a rectifier stage Connect to channel 1 1 PHASE 3 WIRE Select for three wire single phase distribution systems Connect to channels 1 and 2 3 PHASE 3 WIRE Select for three phase measurements where there is no neutral connection two wattmeter method The current in the N channel is computed by summation of the instantaneous phase currents In this way Arms Amean Apk Acf and Amps harmonics can be displayed for the 3rd wire They are displayed as neutral current measurements Total watts volts etc for CH1 and CH2 are displayed as gt values Connect to channels 1 and 2 3 PHASE 4 WIRE Select for three phase measurements with or without a neutral connection three wattmeter method The current in the neutral wire is computed by summation of the instantaneous phase currents In this way Arms Amean Apk Acf and Amps harmonics can be displayed for the ne
80. aneous flicker sensation peak instantaneous flicker Fluctuating Harmonics CMD gt output 10 IEC FLU CH1 CMD gt output 10 IEC FLU CMD gt enter 10 to receive all the data as a single string or CMD gt enter 10 read 8 values CMD gt enter 10 END Flickermeter CMD gt output 10 IEC FLM VLT or CMD gt output 10 IEC FLM AMP real imaginary Where real is the real part and imag is the imaginary part of the test impedance Both values are in Ohms CMD gt output 10 IEC FLM CH1 runtime DC Where runtime is the measurement time in minutes and DC is the relative steady state voltage change in as defined in EN 61000 3 3 Check for the NDV bit set in the Data Status Register CMD gt output 10 IEC FLM CMD gt enter 10 to receive all the data as a single string or CMD gt enter 10 read 8 values CMD gt enter 10 END The modes must be first set up with one of the IEC commands see example SET UP INTEGRATOR Class Return type Format Options Return format Example device command none INT ENB DIS RUN time ENB enable integrator DIS disable integrator RUN time setin minutes none CMD gt output 10 INT ENB SET UP AND DATALOG Class Return type Format device command none LOG EXT window TRG LOG EXT DMP window TRG LOG EXT CYC number TRG LOG DIS PAGE 10 34 PM3000A USER MANUAL IEEE COMMUNICATION Options EXT wait
81. ar costs In no case shall Voltech s liability exceed the amount of the license fee All rights reserved No part of this publication may be produced stored in a retrieval system or transmitted in any form or by means electronic mechanical photocopying recording or otherwise without prior permission of Voltech Instruments 2002 Voltech Instruments PAGE 11 7 SPECIFICATION PM3000A USER MANUAL PAGE 11 8 PM3000A USER MANUAL COMPLIANCE WITH EC DIRECTIVES CHAPTER 12 COMPLIANCE WITH EC DIRECTIVES COMPLIANCE WITH EC DIRECTIVES PM3000A USER MANUAL PM3000A USER MANUAL COMPLIANCE WITH EC DIRECTIVES 12 1 DECLARATION OF CONFORMITY DECLARATION OF CONFORMITY Manufacturer s Name Voltech Instruments Ltd Manufacturer s Address 148 Sixth Street Harwell International Business Centre Harwell Didcot Oxon OX11 ORA United Kingdom declares that the product Product Name Power Analyzer Model Number PM3000A conforms to the following product specifications Safety BS EN 61010 1993 EMC BS EN 55022 1995 Class A BS EN 50082 2 1992 Supplementary Information The product herewith complies with the requirements of the EMC Directives 89 336 EEC and 92 31 EEC and the Low Voltage Directive 73 23 EEC Signed for on behalf of Voltech Instruments Ltd Martin Whitley Quality Manager Abingdon United Kingdom July 22 1996 PAGE 12 1 COMPLIANCE WITH EC DIRECTIVES PM3000A USER MANUAL 1
82. ata to compute the fundamental components of the volts and amps and any other harmonics required This data is then transferred to the interface processor and another set of samples is taken The interface processor averages and displays the results required for the front panel display Further to this all the results for every phase are computed averaged and stored in memory These background results are available to the IEEE RS232 and printer interfaces The user can select over 400 different measurements from this store making the PM3000A an extremely versatile instrument PAGE 1 3 GENERAL DESCRIPTION PM3000A USER MANUAL PM3000A BLOCK SCHEMATIC CH1 CH2 CH3 Gain Gain Gain Gain Gain Gain Amplifier Amplifier Amplifier Amplifier Amplifier Amplifier Filter Isolation Isolation Isolation Isolation Isolation Isolation Computation Processor Interface Processor Analog Outputs IEEE RS232 Centronics Keyboard Display PAGE 1 4 PM3000A USER MANUAL GETTING STARTED CHAPTER 2 GETTING STARTED GETTING STARTED PM3000A MANUAL PM3000A USER MANUAL GETTING STARTED 2 1 POWER ON 2 2 The instrument is supplied with a power lead to suit the local electricity supply In some cases a power plug will need to be fitted connect brown wire to phase or live pin blue wire to neutral pin and green yellow wire to ground or earth pin On no account should th
83. averaging full enable OVA Current overload enable NDV new data available enable CMD gt output 10 BSE 4 The BAS bitin the serial poll status byte is set according to the logical bitwise AND of the background data status register and the background data status enable register BSE Class Return type Format Options Return format Example READ BACKGROUND DATA STATUS ENABLE REGISTER device query NR1 numerical response data BSE none 0 255 o COVA OVV AVF NDV DVL DVL data available enable OVV Voltage overload enable AVF averaging full enable OVA Current overload enable NDV new data available enable CMD gt output 10 BSE CMD gt enter 10 4 The BAS bit in the serial poll status byte is set according to the logical bitwise AND of the background data status register and the background data status enable register READ BACKGROUND DATA STATUS REGISTER Class Return type Format Options Return format Example device query NR1 numerical response data BSR none 0 255 ova ovv AVF DVL data available OVV Voltage overload AVF averaging full OVA Current overload NDV new data available CMD gt output 10 BSR CMD gt enter 10 7 This command clears the background data status register The BAS bit in the serial poll status byte is set according to the logical bitwise AND of the background data status register and the background data status en
84. chlV ch2V ch3V 6 3 Le T SV fund chiV fund a ch3V fund ch2W ch3W fund chlW fund ch2W fund ch3W fund S J rs 253 VAr fund chWaAr h ch2VAr h ch3VAr h Var fund ch VAr fund ch2VAr fund ch3VAr fund SVA JY Y Var Y VA fund J W fund gt VAr fund m TE Es EET See Page 6 3 Y A fund m i gt PF 2 fund VAr h xVAr VAr fund APPENDIX 3 PM3000A USER MANUAL
85. ctor 25 way D socket Pin 1 Amps Channel 1 Pin9 Amps Channel 3 Pin3 Volts Channel 1 Pin 11 Volts Channel 3 Pin5 Amps Channel 2 Pins 2 4 6 8 10 12 Ground Pin7 Volts Channel 2 PAGE 10 12 PM3000A USER MANUAL IEEE COMMUNICATION Channels 2 and 3 will only be operative if the wiring is selected for multi phase P2 P4 The wiring and range commands P and RV RA are still available with the analog outputs enabled 10 4 27 DATA LoG FORMAT X 0 X 1 xxx This command allows entry to the data logging routines A B1 command should be sent first to specify which results are to be calculated and stored If the integrator is running this command will be ignored X0 Exits the data log mode and should be used before returning to normal operation X1 Enters data log mode There are three fields i Capture Time 0 4 X10xx 30 milli Seconds X11xx 60 milli Seconds X12xx 300 milli Seconds X13xx 1 Second X14xx 5 Seconds ii Internal or External Trigger X1x0x The PM3000A will start data logging without waiting for a further trigger X1x1x The PM3000A will wait for either a The external trigger input to be brought low b An IEEE bus GET Group Execute Trigger iii Data Dump This will allow the user to transfer the data captured during data log to the computer for further analysis After the data log is complete a B3 command must be sent to read the samples The 8 bit data 000 255 will be returned for
86. d lt option Pressing the DATA DUMP key will trigger the printout To print use an external trigger use the SELECT and ENTER keys to choose the gt enabled lt option Shorting the Ext Trigger input will trigger the printout PAGE 8 1 INTERFACE SET UP PM3000A USER MANUAL The timed trigger setup is then entered The display shows TIMED TRIGGER PRN gt disabled lt The PM3000A will automatically print at a user specified time interval if this mode is enabled Use the SELECT and ENTER keys to gt enable lt or gt disable lt this option as required If enabled the display will show PRINTOUT INTERVAL HH MM gt 00 00 lt Use the digit keys to enter the time interval between printed output Use SELECT if you make a mistake whilst entering the time Press ENTER when the interval is correct Printouts will then occur automatically at the time interval selected Additional printouts may be initiated by pressing the DATA DUMP key PRINTING CHANNEL SELECTION RESULTS Press the INTERFACE key and use SELECT and ENTER to gt enable lt the printer Then use SELECT and ENTER again to choose gt selection lt The front panel display shows SELECT CHANNELS Use the Channel Select keys to choose the channels for which results will be printed Ifa channel is already displayed pressing its key again will cancel it Press ENTER when the choice is correct Now use the function keys W VA
87. e SELECT key to show the following display DISPLAY FORMAT gt single lt PAGE 3 7 BASIC FUNCTIONS PM3000A USER MANUAL 3 2 7 2 3 2 7 3 3 2 8 Press ENTER to select this display mode The display will be similar to the following UPPER RIGHT DISPLAY gt Arms lt Press the reguired function key at the top left of the front panel to choose the reguired parameter for display The allowed keys are V A W VA FREQ PF Vpk and Apk The lower line of the display will change to show the selected parameter Press ENTER to confirm and then repeat this procedure for the upper left display The display will reconfigure to show the selected measured parameters on the upper line The lower line may be changed simply by pressing the required function key MULTIPLE FUNCTION DISPLAY To display measure parameters for all channels first select the 304W key the Channel Select key 2 and the required function key for example W Press the DISPLAY key and use the SELECT key until the display is as shown below DISPLAY FORMAT gt multiple lt Press ENTER to select this option and the display will be similar to 0 000 0 000 0 000 Watts 0 000 W The three numbers on the top row correspond to CH1 CH2 and CH3 respectively and the bottom row shows the sum of the Watts Other function keys may be pressed to indicate their values but note that not all are valid for a m
88. e instrument be used without the safety ground being made Turn the power on at the front of the instrument The display will briefly show VOLTECH INSTRUMENTS and the firmware version number followed by the default display 0 000 V 0 000 A Watts 0 000 W All the LED indicators will be lit for a short time before the default display is shown and it is assumed at this stage that no voltage and current inputs are present The factory set default display is for a single phase 2 wire connection see section 2 3 Watts Volts and Amps are displayed for channel 1 confirmed by the LED indicator below the CH1 key In this display mode the keys for phases 2 and 3 CH2 and CH3 as well as the calculated sum key gt and neutral current key N are invalid The power on display may have been changed by a previous user It is possible to restore the default display by loading the standard program see section 4 1 1 Important Note The PM3000A is a high bandwidth 500kHz instrument The standard and 001 versions of the instrument are fitted with a low bandpass 25 kHz filter that is enabled as default Version PM3000A 002 has a 5kHz filter to meet requirements of the EN60555 2 and EN61000 3 2 standards For high frequency measurements disable the filter as described in section 5 2 USING THE CONTROL KEYS Although a sophisticated instrument the PM3000A is extremely easy to configure and operate The control keys are all fro
89. e will be measured on all three inputs and the calibration constants for each analogue channel will be calculated The display will then show either PASS PAGE 5 17 THE FUNCTION MENUS PM3000A USER MANUAL or for example FAIL Channel 2 If a calibration fail occurs the display advises which channel s have failed In either case press ENTER to continue If a PASS occurs the next range is set For a FAIL the display returns to the range on which the fail occurred press ENTER to move on through the menu or retry the range calibration again Repeat for all twelve ranges VR1 VR12 The display will then show INPUT 10Vrms 20kHz enter to continue This allows the calibration of the low bandwidth filter 20kHz on standard and 001 models 4kHz on 002 models This step can be bypassed by pressing the F key which will cause the previously stored filter calibration to be retained Input 10Vrms sinewave at the specified frequency then press the ENTER key The PM3000A will calibrate and after a few seconds will display CHANNEL 1 2 3 PASS or indicate the failed channels Press ENTER to continue The display will then show CALIBRATE AMPS gt yes lt If only the Voltage channels require calibration press SELECT to display gt no lt followed by ENTER and move to the SAVE NEW CAL DATA prompt The Current channels may now be calibrated by choosing gt yes lt 5 10 5 AM
90. ean 30 Voltage harmonics Magnitude 8 Phase angle 31 Current harmonics Magnitude amp Phase angle Resistance and Reactance are returned if the SEL FUN fundamentals option is used when the SEL IMP command is issued Voltage and current harmonics are further broken down as follows HO Magnitude only H1 Magnitude 8 phase only H2 H99 This depends on the setting of FP17 Harmonic Reference Mode If FP17 is set to of then of reference 8 phase If FP17 is set to absolute value then Magnitude amp phase When requesting harmonics in FRD if a harmonic is selected which falls between H2 and H99 then it will only be returned if it is currently being displayed This is true for voltage and current harmonics HO and H1 are returned regardless of whether they are displayed or not as long as one or the other has been selected Only one harmonic can be selected at a time PM3000A 001 Auxiliary Inputs and FRD If auxiliary inputs are selected then data is returned in the following order Torque speed power efficiency END PAGE 10 31 IEEE COMMUNICATION PM3000A USER MANUAL FSR___ SET FREQUENCY SOURCE Class Retum type Format Options Return format Example device command none FSR VLT AMP EXT SLW set voltage frequency source AMP set current frequency source EXT set external frequency source SLW set external slow frequency source none CMD gt o
91. ected integrator functions for that point in time will be printed out provided the interface has been configured To stop the integrator press the STOP key The LED under the START RESET key will turn off and the integrator will stop The terminal results are held and can be viewed from the front panel display They will automatically be printed if the printer interface is enabled The integrator can be restarted at this point by pressing START again or can be disabled by entering the integrator menu and selecting disabled SETUP EXTERNAL TRIGGER Enter the integrator menu use SELECT and ENTER to gt enable lt the integrator then select gt trigger lt control Use SELECT and ENTER to gt enable lt the external trigger The LED under the INTEGRATOR key will illuminate to show that the integrator is ready to be triggered The integrator will start when the external trigger input on the rear panel is grounded The integrator will run whilst this input is low To stop the integrator release the input The terminal results may then be viewed on the front panel display and will automatically be printed providing the printer interface is enabled The integrator can be reset and restarted at this point by grounding the external input again or can be disabled by pressing the integrator menu key and selecting gt disabled lt SET UP TIME CONTROL With the integrator enabled use SELECT and ENTER to choose gt timed lt
92. ed by string response data END Format FRD CH1 CH2 CH3 CHN SUM AUX Options CH1 Channel 1 only CH2 Channel 2 only CH3 Channel 3 only CHN Neutral channel SUM Summation values AUX Auxiliary inputs PM3000A 001 only Return format NR3 NR3 NR3 maximum 8 on one line OUTPUT 10 SEL CLR Example OUTPUT 10 SEL CH1 OUTPUT 10 SEL VLT OUTPUT 10 SEL AMP OUTPUT 10 SEL FRQ OUTPUT 10 SEL PWF OUTPUT 10 SEL FUN PAGE 10 30 PM3000A USER MANUAL IEEE COMMUNICATION Notes Send FRD command with selected channel OUTPUT 10 FRD CH1 Receive data until END ENTER 10 1 0734E2 8 714E 2 7 044E 1 6 102E1 1 0734E2 6 137E 2 9 999E 1 ENTER 10 END The values above correspond to the following results Vrms 1 0734E2 Arms 8 714E 2 PF 7 044E 1 Freq 6 102E1 Fund Vrms 1 0734E2 Fund Arms 6 137E 2 PF 9 999E 1 It is important to note the order in which functions are returned There follows a list of the function order and this is constant for all channels Even if certain functions are not selected in the background analysis the same basic order will be maintained except those functions will be missing 1 Watts 2 VA 3 VAr 4 Vrms 5 Arms 6 PF 7 Vpeak 8 Apeak 9 Vcf 10 Acf 11 Imp 12 Vthd 13 Athd 14 Frq 15 Vmean 16 Amean 17 VAV 18 k Factor 19 P corr 20 Fund Watts 21 Fund VA 22 Fund Var 23 Fund Vrms 24 Fund Arms 25 Cos phi 26 Resistance 27 Reactance 28 Fund Vmean 29 Fund Am
93. ed freguency 1 Select PWM gt output lt mode and the appropriate filter as described in the earlier sections Select F P 36 LOAD FIXED FREQUENCY and set gt enable lt Press ENTER This will store the freguency Save as Program 1 see section 4 1 Note that this overwrites any program previously stored in P1 Set PWM mode F 7 to gt disabled lt Select F P 21 FIXED FREQUENCY and set gt enabled lt Save as in Program 2 Load Program 1 see section 4 1 1 Enable the PROGRAM SWITCH see section 5 5 The P key now toggles the configuration between Program 1 and Program 2 each time it is pressed Full harmonics can be measured when Program 2 is set PAGE 5 13 THE FUNCTION MENUS PM3000A USER MANUAL 9 8 5 9 F 8 BALLAST ULTRASONIC MODE In situations where high freguency voltage and current waveforms are heavily modulated by mains borne freguencies itis difficult to make accurate measurements as the sampling is not synchronized to the 50 60 Hz modulation This occurs freguently with lighting ballast power measurements The ballast ultrasonic mode F 8 solves this problem Voltech Application Note 101 covers its use in detail To use the function 1 Press the F key and use SELECT and ENTER to choose F 8 BALLAST mode 2 Select off or 50HZ or 60Hz and press ENTER 2 The PM3000A will now capture and analyze the relevant number of samples that correspond to one comple
94. entals Selection of parameters is WATTS VOLTS AMPS AMPS HARMONICS FREQUENCY Send L15 1 for harmonics 1 3 5 7 9 11 13 15 Send T1 Trigger Wait x seconds appropriate to the time needed to do the harmonic analysis for the averaging depth used For averaging of 4 this may be 1 second approximately The results requested may now be read from the PM3000A An empty string will be returned if the results are not ready If the serial poll is sent to the PM3000A bit 1 of the status byte will show if data is ready to be read Bit 1 shows when the results have been averaged to a preset limit This can be used to ensure that the results are stable and full accuracy is maintained PAGE 10 14 PM3000A USER MANUAL IEEE COMMUNICATION A detailed program in Auick Basic is given on the following page The results returned are shown as follows CHANNEL 1 kkkkkkkkkkkkkk 0 1263W 2 511 V 0 050 A 50 60 Hz AH1 0 050A 000 0 deg ARMON 3 tnit ole AH00 0 003A AHO3 0 108 AH05 0 066 AHO7 0 039 AH09 0 073 AH11 0 108 AH13 0 060 AH15 0 053 0 203 Athd END OF DATA 014 1 deg 019 7 deg 319 6 deg 117 8 deg 147 4 deg 029 2 deg 223 0 deg PAGE 10 15 IEEE COMMUNICATION PM3000A USER MANUAL PRINT 1 CLEAR 10 GOSUB delay 5 PRINT 1 REMOTE 10 GOSUB delay 5 PRINT 1 OUTPUT 10 A04 PRINT 1 OUTPUT 10 P1 PRINT 1 OUTPUT 10 B1 01 0 100110000000000000
95. er together with efficiency based upon these inputs and the electrical power delivered to the motor monitored on the main channel inputs Connect the motor electrical inputs to CH1 CH2 CH3 in 323W or 304W mode Connect the torque and speed inputs to the marked BNC inputs Channel A torque input Channel B or EXTERNAL FREQ speed input To enable the Auxiliary Inputs interface first use ENTER to choose the auxiliary inputs option from the Interface menu and then use SELECT and ENTER as necessary to choose gt enabled lt The display will be similar to that shown below TORQUE INPUT gt 10V full scale lt Use the SELECT and ENTER keys to choose the appropriate DC voltage range for the input to the Torgue Channel 10V or 1V The display will then show TORQUE INPUT gt torque in Nm lt Use the SELECT and ENTER keys to choose Newton meters Nm or foot pounds ftlb as the units of torque for the display The display will then show TORQUE INPUT gt 1 000 per Volt lt Use the digit keys to enter the scaling for the torque input in the selected units and press ENTER The display will then show RPM INPUT gt pulse lt Use the SELECT and ENTER keys to choose the appropriate input for motor speed rpm Choose pulse if a pulse transducer output has been connected to EXTERNAL FREQ Choose voltage if a voltage transducer output has been connected to the AUXILIARY input B
96. esponse data Format ESR Options none Return format 0 255 CME EXE QRE OPC OPC operation complete QRE unterminated query error EXE execution error CME command error Example CMD gt output 10 ESR CMD gt enter 10 1 The ESB bitin the serial poll status byte is set according to the logical bitwise AND of the standard event status register and the standard event status enable register The register is then cleared FNC READ FUNCTION DATA Class device query Return type NR3 numerical response data Format FNC CH1 function CH2 CH3 CHN SUM Options CH1 WAT Watts CH2 VAS VA CH3 VAR VArs CHN VLT Volts SUM AMP Amps PWF Power factor VPK Volts peak APK Amps peak PAGE 10 28 PM3000A USER MANUAL IEEE COMMUNICATION Example Notes VCF Volts Crest factor ACF Amps Crest factor IMP Impedance EFF Efficiency WHR Watt Hrs VAH VA Hours VRH VAr Hours AHR Amp Hours APF Average Power Factor VHM Voltage Harmonic AHM Current Harmonic VDF Volts Distortion ADF Current distortion FRQ Frequency TIM Integrator time elapsed VDC Volts DC ADC Amps DC VHA Voltage Harm Angle AHA Current Harm Angle VMN Voltage rectified mean AMN Current rectified mean AIN Inrush Current 4 digit mantissa with 2 digit exponent 1 CMD gt output 10 FNC CH1 VLT CMD gt enter 10 2 395E 02 Data read can be synchronized to new data values by using the NDV bi
97. execution speed of the TRG command when the TRG command has been issued the DSR will not have been updated by the time when the first serial poll has been issued and therefore the DSR is still set to averaging full PAGE 10 49 IEEE COMMUNICATION PM3000A USER MANUAL 10 8 VPAS FoR WINDOWs DEMO This demo software disk supplied with your PM3000A is designed to run with an IBM compatible PC fitted with an IEEE interface see section 8 2 VPAS enables the user to set up the PM3000A via a PC command the measurement and read back the results All results obtained can be displayed graphically or as text and can be printed out or exported as ASCII or CSV formats for word processing and spreadsheets The package also supports HF ballast mode PWM motor drive mode and torque speed inputs 10 8 1 HARDWARE REQUIREMENTS Compatible PC Processor DX CPU or installed math co processor SX CPU will not run VPAS Memory 4Mbytes minimum Although VPAS will typically run with 4M Voltech will not guarantee its reliability 8Mbytes recommended Hard Disk Drive 4Mbytes free minimum Video VGA 640x480 DPI resolution minimum Higher resolutions will allow the user to view more data simultaneously without having to move windows around 1024x768 DPI allows the user to view virtually all data simultaneously Operating Systems Supported Windows 3 1 Windows 3 11 for Workgroups Windows 95 Power Analyzer PM3000A Fi
98. for external trigger TRG trigger immediately DMP return also data dump CYC enable cycle by cycle mode DIS disable datalog window capture window in ms number the number of cycles in cycle by cycle mode Return format none Example Datalog Using BRD To Read The Results CMD gt output 10 SEL CLR CMD gt output 10 SEL CH1 CMD gt output 10 SEL CH2 CMD gt output 10 SEL VLT CMD gt output 10 SEL AMP CMD gt output 10 SEL WAT CMD gt output 10 BSE 2 CMD gt output 10 LOG TRG 50 wait for datalog BAS spoll bit CMD gt output 10 BRD CH1 CMD gt enter 10 NR3 NR3 NR3 CMD gt enter 10 END CMD gt output 10 BRD CH2 CMD gt enter 10 NR3 NR3 NR3 CMD gt enter 10 END The command LOG EXT or TRG window takes 6000 samples and analyses for the functions previously selected see SEL The data may be read using BRD Additionally the sample data may be requested using the command LOG EXT or TRG DMP window and read using LOG DMP The command LOG EXT or TRG CYC number sets up cycle by cycle analysis over the specified number of cycles The data should be read using the LOG CYC command READ DATALOG SAMPLES Notes Class device query Return type multiple NR1 or NR1 and NR3 in combination Format LOG DMP Na LOG CYC Options DMP read data dump CYC read Cycle by Cycle results number of accumulated raw samples per output sample Return
99. format DMP sequence of NR1 s terminated by END if not in single reply string mode CYC two NR1 s plus a sequence of NR3 s terminated by END if not in single reply string mode Example 1 Data Dump CMD gt output 10 LOG TRG DMP wait for datalog NDV bit in BSR CMD gt output 10 LOG DMP 8 CMD gt enter 10 8000 12345 CMD gt enter 10 8002 12340 CMD gt enter 10 8004 12335 repeat for 6000 8 lines CMD gt enter 10 END PAGE 10 35 IEEE COMMUNICATION PM3000A USER MANUAL The command LOG DMP reads raw sample data in multiple lines depending on the wiring selected 1 phase 2 wire V1 A1 Torque Speed 1 phase 3 wire V1 A1 V2 A2 N Torque Speed 3 phase 3 wire V1 A1 V2 A2 N Torque Speed phase 4 wire V1 A1 V2 A2 V3 A3 N Torque Speed Data for Torque and Speed will only be available if the AUX inputs are enabled See AUX Each sample returned is the sum of N4 raw samples This allows the user either to select a smaller number of samples than 6000 ifthis is reguired or to use this summation to filter out high freguency noise The number Na should be chosen to divide into 6000 exactly as the number of data replies returned is equal to 6000 Na Example 2 Cycle by Cycle CMD gt output 10 WRG 3P4 CMD gt output 10 AUX ENB CMD gt output 10 AUX SIU 0 10 CMD gt output 10 AUX VLT 0 10 CMD gt output 10 BSE 2 enable NDV bit CMD gt output 10 SEL CLR CMD gt output 10
100. g factor may not be less than one and may be no more than 5 digits plus decimal point There is no command to scale the volts down This command must not be used in a multi command line Any commands following this will not be recognized 10 4 15 MULTIPLE HARMONICS FORMAT L 00 99 0 1 Use after the B1 command where V Harmonics and or A Harmonics have been selected All the harmonics up to and including the limit 00 99 will be analyzed and averaged The second field selects odd harmonics only to be returned L010 will return fundamental component only LO20 will return dc fundamental and all harmonics up to the limit T 0 LO21 will return odd harmonics only up to the limit M 1 e g L17 1 will analyze harmonics 1 3 5 7 9 11 13 15 and 17 L08 0 will analyze harmonics 0 1 2 3 4 5 6 7 and 8 10 4 16 SERvICE REQUEST ENABLE FORMAT 0 1 Enables or disables the service request MO disables service request M1 enables service request on data ready After the M1 command the service request line will be asserted when data is ready to be read The PM3000A will return a status byte after a serial poll This byte has the following significance PAGE 10 9 IEEE COMMUNICATION PM3000A USER MANUAL bit 0 data ready bit 1 background averaging has reached maximum bit 2 display averaging has reached maximum bit 3 not used bit 4 not used bit 5 not calibrated or calibration corrupted bit 6 set if service reguested bit 7
101. ge Harmonic Distortion 3 10 A THD Current Harmonic Distortion 3 10 FREA Freguency 3 10 FREQSOURCE Frequency Source Selection 3 4 VOLTS AMPS 5 Selection 3 5 AVG Averaging Selection 3 5 COUPLING AC DC AC Coupling Selection 3 6 SHUNT Shunt Selection 3 6 APPENDIX 1 PM3000A USER MANUAL SCALING Scale Factor Options 3 6 INTEGRATOR Integrator Options 7 2 INTERFACE Interface Options 8 1 DISPLAY Display Options 3 7 DATA LOG Event Analysis Options 9 1 102W Single Phase Two Wire 2 2 103W Single Phase Three Wire 2 2 3 3W Three Phase Three Wire 2 2 304W Three Phase Four Wire 2 2 CH1 Channel 1 2 2 CH2 Channel 2 2 2 CH3 Channel 3 2 2 y Summation 2 2 N Neutral 2 2 F Function Key 5 1 P Program Key 4 1 SELECT Option Select Key 3 5 ENTER Option Confirm Key 3 5 CLOCK SET Time and Date Adjustment 3 8 STOP Datalog Integrator Stop key 9 4 START RESET Datalog Integrator Reset key 9 4 DATA DUMP Printer Data dump Key 4 5 LOCAL IEEE Local Mode Key 10 2 AUTO Volts and Amps Auto Ranging 2 3 PM3000A USER MANUAL APPENDIX 2 APPENDIX 2 ALPHABETICAL INDEX APPENDIX 2 PM3000A USER MANUAL PM3000A USER MANUAL APPENDIX 2 ALPHABETICAL INDEX A A KEY AC DC COUPLING SELECTION ACCESSORIES ACCURACY SPECIFICATION ADDRESSING ADVANCED CONFIGURATION ANALOG ALARMS OUTPUTS ANTI ALIASING FILTER APPARENT POWER VA AUTO KEY AUTO RANGING AUXILIARY INPUTS AVERAGING AVERAGING DEPTH AVG KEY BALL
102. hen shows CURRENT SCALING gt up lt Pressing SELECT switches between gt up lt and gt down lt Choose gt up lt to multiply the measured current by the scale factor or gt down lt to divide the measured current by the scale factor Press ENTER to confirm the setting A scale factor of 100 down is equivalent to 0 01 up If you return to this menu the scale factor is always displayed as the equivalent gt up lt scale factor SCALING THE EXTERNAL SHUNT The external shunt input has a range of 0 to 2 5V peak This corresponds to 12 5mV per amp 2500mV 200A If for example a 0 10 external shunt is used this will generate 100mV per Amp The current scale factor must be set to 8 0 down to obtain the correct display 100 mV Amp 12 5 mV Amp The formulae for UP and DOWN scaling are as follows SF 12 5 SF Actual mV Amp Actual mV Amp 12 5 UP DOWN If you return to this menu the scale factor is always displayed as the equivalent up scale factor If 8 0 down were entered the display will show a SF of 0 125 the next time this menu is accessed DISPLAY DisPLAY FORMAT Using this key allows the user to specify the measurements to be shown in each part of the display If multi channel measurements are being made it is possible to display simultaneously the results for all channels plus the sum Examples of use are provided below SINGLE FUNCTION DISPLAY Press the DISPLAY key and use th
103. hout having to remove the cover The calibration sequence is passcode protected All three voltage or current inputs are calibrated simultaneously for maximum efficiency although it is possible to calibrate each channel separately if required The integrity of the EEPROM contents is verified at power on and the message UNCALIBRATED is displayed if the contents are invalid 5 10 2 PASSCODE The passcode is a 4 digit number that allows entry to the calibration routines It comes factory set at 3000 but may be changed by the user for extra security If the new code is lost or forgotten then a master code is held at Voltech to allow access Contact Voltech or your dealer if this is needed To change the passcode press the F key and use SELECT and ENTER to choose F 10 CALIBRATION mode Press ENTER to proceed The display is as follows CAL CODE 0 9999 gt 0 lt Enter the current 4 digit passcode if this is incorrect you will be returned to the default display The display then shows ENTER NEW CAL CODE gt yes lt Press ENTER to change the passcode and then enter the new code If the instrument does not require calibration it may be switched off at this point To skip entering a new passcode press SELECT to display gt no lt and then ENTER The system will now enter the main calibration menu Refer to section 5 10 8 for the equipment needed 5 10 3 MANUAL CALIBRATION Switch on the PM3
104. kHz 750 x 0 01 PF reading It It A reading x V error V reading x A error 0 04 reading A reading x V error x PF V reading x A error x PF 0 04 PF reading HE reading x V error V reading x A error x kHz x 0 06 PF reading HE reading x V error V reading x A error x kHz 1250 x 0 01 PF reading HE It indicates positive power flow indicates negative power flow 25mVA to 400kVApk with scaling to 100 000MVA A reading x V error x PF PAGE 11 3 SPECIFICATION PM3000A USER MANUAL 23 5 C sinewave All models 11 5 REACTIVE POWER VAR Ranges Auto or Manual 144 ranges corresponding to V amp A Accuracy 45 to 450Hz 23 5 C sinewave Std amp 001 models 0 1Hz to 250kHz 250 to 500kHz 002 model 45 to 450Hz 0 1Hz to 250kHz 250 to 500kHz Polarity 11 6 POWER FACTOR Range Accuracy 23 5 C All models Polarity 11 7 CREST FACTOR CF V reading x A error x PF 25mVAr to 400kVArpk with scaling to 100 000MVAr A reading x V error x 1 PF V reading x A error x 1 PF 0 04 1 PF 9 reading I I A reading x V error x 1 PF V reading x A error x 1 PF 95 0 04 1 reading HE It A reading x V error x 1 PF V reading x A error 1 kHz 750 x 0 01
105. la To select series THD Press F P 16 and ENTER Select harmonic series and ENTER Press F P 19 and ENTER Select HO dc excluded or HO dc included as required Press ENTER Press F P 135 to select odd or odd and even harmonics in the THD series Press ENTER Press F P 136 to select max harmonic for the THD series Press ENTER HARMONIC REFERENCE The fundamental or RMS value may be chosen as reference for THD calculation both on the display and the printout The default is fundamental HARMONIC DISPLAY The harmonics may be chosen to display as percentage of the reference or as actual values of volts or amps HARMONIC ZERO DC The zero harmonic DC can be included or excluded in the THD series formula DISPLAY UPDATE RATE This is set as 0 5 sec default It may be changed from 0 to 9 9s in units of 100ms in this option by selecting 0 99 FIXED FREQUENCY ENABLE For accurate operation the PM3000A needs to obtain the frequency of whatever source it measures Sometimes this may be impractical To overcome this the user can set a fixed frequency value in F P 22 and enable it as the instrument s source of reference gt disabled lt is the default normal operation FIXED FREQUENCY Through this option the value of fixed frequency can be set It is activated by selecting enabled in F P 21 PAGE 6 1 ADVANCED CONFIGURATION PM3000A USER MANUAL 26 2
106. lculate efficiency using a combination of power or apparent power between any two channels or between a 3 phase 3 wire measurement and CH3 Press the F key and use SELECT and ENTER to choose F 4 EFFICIENCY mode The display is as follows EFFICIENCY gt disabled lt Select gt enabled lt to give the following display EFFICIENCY FORMULA gt ch3 sum lt Use SELECT and ENTER to choose the channels to calculate the efficiency from gt ch3 sum lt gt sum ch3 lt gt ch1 ch3 lt gt ch2 ch3 lt gt ch1 ch2 lt PAGE 5 3 THE FUNCTION MENUS PM3000A USER MANUAL Then use SELECT and ENTER to choose the units for calculation from gt Watts Watts lt gt VAIVA lt gt Watts VA lt gt VA Watts lt If required the efficiency can then be scaled to suit the application using the digit keys followed by ENTER When the FUND key is pressed the efficiency is calculated from the fundamental values of WATTS and or VA When efficiency is enabled independent CH3 is set up irrespective of the previously selected wiring mode The efficiency units formula and scaling are printed when Watts and VA are selected for printout 5 5 F 5 PROGRAM SWITCH The program switch facility enables two stored set ups to be alternatively loaded with a single key press To use save the first set up in P 1 and reconfigure the instrument for the second set up save this in P 2 Press the F key and use SELECT a
107. me The PC will then calculate values of Pst and Pit from equations defined in this standard PRE COMPLIANCE TESTING Pre Compliance testing does not require a Source Impedance as the measurement is made by the fluctuating current taken by the load Operation is the same except that the PM3000A determines the fluctuating voltage by calculating the instantaneous voltage drop across a Standard Source Impedance as set in flickermeter menu and subtracting this calculated voltage drop from the voltage seen by the PM3000A PAGE 5 7 THE FUNCTION MENUS PM3000A USER MANUAL 5 6 7 5 6 8 5 6 8 1 VOLTAGE DEVIATION TESTS The Flickermeter technigue provides an excellent assessment of continuous voltage changes However a load that causes a single or very occasional large voltage change will have only a small effect on the Pst Plt measurement yet this large voltage change will have a disturbing effect on lamps Because of this measurements of voltage deviations are made throughout the observation period by the PM3000A and the percentage value displayed is the largest change in voltage seen during observation Steady State 1 A steady state voltage that undergoes a voltage change exceeding the limit dc for a time dt seconds but staying within the limit dmax before returning to a second steady state dc voltage level which is less than dc with dt being less than 200ms will pass the dc dmax and d
108. measurement Fluctuating Harmonics 7Mb per hour Flicker 5kb per 10 minutes Windows Version 3 1 or higher IEEE 488 INTERFACE CARDS SUPPORTED All current National Instruments cards supporting 488 2 protocols 5 6 8 4 INSTALLING THE SOFTWARE TO YOUR PC 5 6 8 5 1 2 3 4 Insert the 3 inch disk into drive A on your PC From the Windows Program Manager using the mouse Pull down the File menu Click on Run In the Run dialogue box on the Command Line type a setup and click on the OK button Follow the on screen prompts The default directory for the IEC1000 for Windows software is CMEC1000 You may choose an alternative drive directory when prompted during the installation process For more information on installation please refer to the IEC1000 3 User Manual SETTING UP YOUR IEEE488 INTERFACE CARD Initially refer to the user manual supplied with your IEEE488 interface card for the recommended procedures for installation and set up of the card in your PC If there is any difficulty please refer to the IEC1000 software on line help PAGE 5 9 THE FUNCTION MENUS PM3000A USER MANUAL 5 7 F 7 PWM Drive MODE The difficulties associated with making measurements on the complex waveforms of PWM drives are overcome with this special operating mode It is described fully in Voltech Application Note 105 High frequency sampling and digital filtering reject the carrier frequency and extract the moto
109. mpedance will be displayed in ohms calculated as _ Total RMS Volts Total RMS Amps If fundamentals have been selected i e the FUND LED is on the complex impedance due to the fundamental volts amps and power factor is displayed Z R jX Ohms Only the resistive part R of the impedance is displayed on the single function and multiple channel displays R Indicates power flow into load R Indicates power flow from load X Indicates inductive reactance X Indicates capacitive reactance 3 1 11 ENTER HOLD THE DISPLAY 3 2 3 2 1 When not in a configuration programming or data entry mode the ENTER key may be used to hold the value of the parameter in the lower line of the display The values of other parameters are also held when ENTER is pressed and these may be displayed by pressing the appropriate control key To return to real time display press ENTER again SET UP KEYS The SET UP keys control the configuration of the input circuits of the PM3000A Since each channel is entirely separate and isolated from each other the set up can be different for each channel when independent channel wiring modes are selected In normal 3 phase 3 wire or 3 phase 4 wire connection modes the set up parameters are linked together for simplicity FREQ SOURCE As part of the operation of the PM3000A the measurement functions are synchronized to the ac supply frequency The source of this frequency is selected by mea
110. n internal INT and external EXT shunt selection INT mode is selected for direct measurement of ac and dc currents up to 30A rms and uses signals from precision internal shunts in the PM3000A This mode is also used with ac current transformers EXT mode is used when taking current measurements with external high current shunts dc current transformers or other devices providing a voltage signal that is proportional to current SCALING Scale factors for the voltage and current input on all three channels can be entered If 1000 1 current transformers are being used for example use a current scale factor of 1000 UP to make the PM3000A display the actual currents watts etc If a wiring configuration other than 1 2W is used scaling can be locked the same scaling on all channels or independent Press the SCALING key Choose gt locked lt or gt independent lt voltage scaling using the SELECT key and press ENTER to confirm the setting Enter a voltage scale factor if required using the numeric keys and press ENTER to confirm the setting PAGE 3 6 PM3000A USER MANUAL BASIC FUNCTIONS 3 2 6 1 3 2 7 3 2 7 1 If you have chosen independent scale factors you are then prompted for the CH1 CH2 and CH3 scale factors Next choose gt locked lt or gt independent lt current scaling and then enter a scale factor in the same manner if required If a current scale factor other than 1 0 is entered the display t
111. nd ENTER to choose F 5 PROGRAM SWITCH mode Use SELECT and ENTER to switch the option gt on lt Pressing the P key now switches the configuration between set up P 1 and set up P 2 To restore the P function to normal operation repeat the above procedure selecting PROGRAM SWITCH gt off lt N B The Program Switch does not change integrator chart recorder or datalog functions 5 6 F 6 IEC555 TESTING MODE The EN60555 and EN61000 3 standards provide limits for the magnitude of harmonics that can be generated by equipment connected to the public low voltage system It defines these limits for steady state harmonics and fluctuating harmonics Voltage fluctuations that cause flicker in lighting equipment are also limited by the standard It further defines the requirements of the measuring instrument and the method by which the measurements are made To simplify measurements to EN60555 and EN61000 3 Voltech recommends the use of the Windows based PC software that is available for the PM3000A power analyzer as listed in the accessories section of this manual page 1 2 This software is available from your supplier and comes complete with its own user manual For steady state fixed harmonics the PM3000A harmonic measurement mode normally meets these criteria Special operating modes are included to meet the requirements of fluctuating harmonics and voltage fluctuation measurement See Voltech Application Note 104
112. nd displays the reactive power flow due to the phase difference between the current and voltage waveforms and due to waveform distortion VAr is computed as VAr V4 W The polarity of the fundamental VArs is shown in the table in section 3 1 1 for various angles between current and voltage For VArs indicates an inductive load indicates a capacitive load PAGE 3 1 BASIC FUNCTIONS PM3000A USER MANUAL 3 1 4 V VOLTAGE The input is AC DC coupled see section 3 2 4 and the instrument will record the RMS or MEAN see section 3 2 2 value of the combined AC and DC components Only the voltage input leads need be connected for Vrms measurements Vrms is computed as T2 los T f V dt and Vmean is computed as V lv dt A CURRENT Only the current input need be connected when taking Arms measurements Arms is computed as l r7 ous ral 1 dt Amran Her and Amean is computed as PF POWER FACTOR Displays the true power factor of an AC load Power factor is only cos for undistorted waveforms cos is merely the displacement factor of the load a measure of the phase shift between the voltage and current waveforms Power factor is computed as PE Watt 2 Ams If the current waveform is distorted the fundamental components of the voltage and current may well be in phase with cos 1 but the true power factor will be less than unity The PM3000A computes the ra
113. ndamentals for all phases are stored automatically by 10 integrator stop PAGE 10 5 IEEE COMMUNICATION PM3000A USER MANUAL 10 4 5 DATA OUTPUT SOURCE DATA LOG FORMAT 3 B3 Only use after Data Log to access the individual samples See DATA LOG section 4 5 10 4 6 CHANNEL SELECT FORMAT 1 5 Selects the displayed Channel C1 Channel 1 C2 Channel 2 C3 Channel 3 C4 SUM C5 NEUTRAL This function will have no effect if the selection is invalid e g if WIRING is configured for single phase two wire and C4 SUM is sent This command will reset the display averaging 10 4 7 DISPLAY SETUP This set of commands configures the display format FORMAT DL 0 7 The DL command will configure the top left hand display DLO Volts DL1 Amps DL2 Watts DL3 VA DL4 Frequency DL5 Power Factor DL6 Peak Volts DL7 Peak Amps FORMAT DR 0 7 The DR command will configure the top right hand display DRO Volts DR1 Amps DR2 Watts DR3 VA DR4 Frequency DR5 Power Factor DR6 Peak Volts DR7 Peak Amps PAGE 10 6 PM3000A USER MANUAL IEEE COMMUNICATION FORMAT DM 0 1 The DM command will configure the SUM display DMO Standard three parameter Sum display DM1 Three channel parameters and Sum display 10 4 8 THREE PHASE FOUR WIRE VOLTS MEASUREMENT Phase to Phase or Phase to Neutral FORMAT 0 1 Selects the voltage measurement system for 3 phase 4 wire measurements only EO Selects phase
114. ng Temperature and Humidity Dielectric Strength Power Source Dimensions and Weight Auxiliary Inputs Warranty COMPLIANCE WITH EC DIRECTIVES Declaration of Conformity EMC Precautions INDEX TO FUNCTION KEYS ALPHABETICAL INDEX FORMULAE PAGE 11 1 11 1 11 2 11 2 11 3 11 3 11 3 11 4 11 4 11 4 11 4 11 4 11 5 11 5 11 5 11 5 11 5 11 5 11 6 11 6 11 6 11 7 PAGE 12 1 12 2 TABLE OF CONTENTS PM3000A USER MANUAL PM3000A USER MANUAL GENERAL DESCRIPTION CHAPTER 1 GENERAL DESCRIPTION GENERAL DESCRIPTION PM3000A USER MANUAL PM3000A USER MANUAL GENERAL DESCRIPTION 1 1 EQUIPMENT CHECK LIST The following items comprise a complete instrument 1 off 6 off 6 off 6 off 6 off 1 off 1 off 1 off 1 off 1 off PM3000A Unit Yellow Test Leads Black Test Leads Yellow Crocodile Clips Black Crocodile Clips AC Power Lead User Manual RS232 Lead VPAS Demonstration Disk 1EC1000 3 Demonstration Disk PAGE 1 1 GENERAL DESCRIPTION PM3000A USER MANUAL 1 2 ACCESSORIES Current Transformer 1000 100 1 1000 1 Current Clamp Transformer 100 1 Current Clamp Transformer Ballast Current Transformer Parallel Printer Cable VPAS Visual Power Analysis Software 1EC1000 3 Software for Windows PS1000 Power Switch for Inrush Current Measurements 1 2 1 APPLICATION NOTES Power Measurements in Lighting Applications 1EC1000 3 Application Note PWM Drives CT1000
115. not used e g 01 means new data is ready 65 means data is ready and the srg line has been asserted 00 no data is ready 10 4 17 AC DC COUPLING SELECTION FORMAT 0 1 This command selects ac or dc coupling NO AC DC coupling selected 1 AC coupling only There is a 1 Sec delay after this instruction is executed This command resets the display and background averaging 10 4 18 MEAN RMS VOLTS AND AMPS SELECTION FORMAT 0 1 Set the Volts and Amps results to read in either RMS or MEAN terms 00 Set to RMS 01 Set to MEAN This command will be inoperative if the integrator is running and the display averaging will be reset by this command 10 4 19 WIRING SELECT FORMAT 1 5 Selects the wiring configuration This command resets the display and the background averaging P1 Sets single phase two wire P2 Sets single phase three wire P3 Sets three phase three wire P4 Sets three phase four wire P5 Sets the channel 3 only mode After sending P4 3 phase 4 wire it is recommended that either the EO phase neutral volts or E1 phase phase volts command is sent PAGE 10 10 PM3000A USER MANUAL IEEE COMMUNICATION 10 4 20 FREQUENCY SOURCE FORMAT Q 0 3 This command selects either the CH1 Volts or CH1 Amps or External as the frequency source QO Selects the Ch1 Volts Q1 Selects the Ch1 Amps Q2 Selects the External frequency input 5Hz minimum Q3 Selects the Slow external frequency input 0 1Hz
116. ns of the FREQ SOURCE key INT mode synchronizes measurement to input voltage or current over the frequency range 5Hz to 1MHz The user can choose between voltage or current frequency measurement This feature is useful in applications such as motor drives where one input may be chopped PAGE 3 4 PM3000A USER MANUAL BASIC FUNCTIONS 3 2 2 3 2 3 EXT mode synchronizes measurement to a signal applied to a rear panel connector It is typically used when both voltage and current are chopped or when frequencies as low as 0 1Hz are required to be measured Options There are four options Use the SELECT key to display the required option and then press ENTER i gt voltage lt CH1 Volts with a frequency range of DC and 5Hz 1MHz ii gt current lt CH1 Amps with a frequency range of DC and 5Hz 1MHz iii gt external lt Frequency source applied to EXTERNAL FREQUENCY input with a range of DC and 5Hz 1MHz iv slow external Frequency source applied to EXTERNAL FREQUENCY input with a range 0 1Hz 100Hz Selecting this mode will give measurement times in excess of 10 seconds for frequencies under 5Hz The maximum voltage to be applied to the EXTERNAL input is limited to 10Vrms Phase Reference If voltage is selected the phase reference source is automatically set as the Voltage Waveform of CH1 If current external or slow external have been selected the display then shows PHASE REFER
117. nt panel mounted and are arranged in a manner to aid intuitive operation of the equipment To enable the user to get up and running as quickly as possible several of the basic measuring functions are described below Greater detail of their operation plus a description of the remainder of the control keys is covered in the following chapters PAGE 2 1 GETTING STARTED PM3000A MANUAL 2 2 1 2 2 2 WIRING KEYS Before meaningful measurements can be made the wiring mode must be selected and appropriate connections made to the rear panel The PM3000A is highly versatile and can be configured to analyze almost any electrical system This versatility is achieved because all power inputs are ac dc coupled and isolated from each other and ground The four main wiring modes are 12W SINGLE PHASE TWO WIRE Select for single phase loads with two wire distribution system 193W SINGLE PHASE THREE WIRE Select for single phase loads with three wire distribution system 303W THREE PHASE THREE WIRE Select for single phase loads without neutral connection two wattmeter method 302W THREE PHASE FOUR WIRE Select for single phase loads with or without neutral connection three wattmeter method Refer to section 2 3 for the rear panel connections to be used for each wiring mode CHANNEL SELECT KEYS These keys are used in conjunction with the wiring keys to display the measure values for the selected phase or channel
118. nual trigger external trigger timed trigger cyclic interval Datalog Control XXXXXXXX bit 7 bit 0 manual trigger external trigger timed trigger cycle by cycle bit 8 bit 9 bit 10 bit 11 bit 12 bit 13 bit 14 bit 15 bit 4 bit 5 bit 6 bit 7 bit 4 bit 5 bit 6 bit 7 logic output 1 logic output 2 logic output 3 logic output 4 logic output 5 not used not used not used averaged integration display reset accumulators after print not used integrator enabled not used not used not used not used PAGE 4 4 PM3000A USER MANUAL THE FUNCTION MENUS CHAPTER 5 THE FUNCTION MENUS THE FUNCTION MENUS PM3000A USER MANUAL PM3000A USER MANUAL THE FUNCTION MENUS 5 0 THE FUNCTION MENUS 231 9228 The Func F key can be used to configure the PM3000A into special operating modes for a wide number of application areas including PWM motor drives High frequency electronic ballasts Testing to EN60555 parts 2 and 3 and EN61000 3 Transformer testing to IEC76 1 The function system also accesses other PM3000A configuration menus including the calibration menu The function structure and operation are described below in the same numerical order in which they appear on the PM3000A F 1 POWER ON DEFAULT The contents of any of the five program stores P1 P5 or the power down setting can be made the power on default set up To do this press the F key Use the SELECT key to display
119. ol XXXXXXXX bit 7 bit 0 bitO Harmonic reference rms bit1 Harmonic display absolute bit 2 Even harmonics in series bit3 not used bit 16 bit 17 bit 18 bit 19 bit 20 bit 21 bit 22 bit 23 bit 24 bit 25 bit 26 bit 27 bit 28 bit 29 bit 30 bit 31 bit 11 bit 12 bit 13 bit 14 bit 15 bit 16 bit 17 bit 18 bit 19 bit 20 bit 21 bit 22 bit 23 bit 4 bit 5 bit 6 bit 7 Average PF selected Correction VArs selected Efficiency selected Voltage harmonics selected Current harmonics selected Voltage THD selected Current THD selected Frequency selected Channel 1 selected Channel 2 selected Channel 3 selected Sum channel selected Neutral channel selected Fundamentals selected Watt harmonics selected Not used Fundamentals enabled Jitter enabled AC coupled External shunt selected Current phase reference Ballast ultrasonic mode Ballast ultrasonic mode Fixed sample rate Autozero enabled PWM mode PWM mode Not used Channel enabled Series thd formula DC included in thd not used not used PAGE 4 3 PROGRAM SET UP PM3000A USER MANUAL 3 bit 0 bit 1 bit 2 bit 3 bit 4 bit 5 bit 6 bit 7 bit 0 bit 1 bit 2 bit 3 bit O bit 1 bit 2 bit 3 Printer Control XXXXXXXX bit 15 bit O manual trigger external trigger timed trigger not used not used printer port RS232 print selection printer enabled Integrator Control XXXXXXXX bit 7 bit 0 ma
120. ol 10001000 00110001 00000000 2 voltage range auto current range auto averaging 16 auto voltage scale 1 000 urrent scale 1 000 maximum harmonic 7 4 integrator control 00000000 SSC 8 Gatalog control 00000001 A datalog window 0 IEEE address 10 RS232 baud rate 9600 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk There are 6 items of information marked on the printout that require further explanation They are Function Selection Channel Control Harmonic Control Printer Control Integrator Control Datalog Control D OLEON gt PAGE 4 2 PM3000A USER MANUAL PROGRAM SET UP 1 Function Selection XXXXXXXX bit 31 bit O bitO Watts selected bit1 VA selected bit 2 VAr selected bit 3 Vrms selected bit4 Arms selected bit5 Power factor selected bit6 V peak selected bit7 A peak selected bit8 crest factor selected bit9 Acrest factor selected bit 10 Not used bit11 impedance selected bit 12 W hours selected bit 13 VA hours selected bit 14 VAr hours selected bit 15 A hours selected 2 Channel Control XXXXXXXX XXXXXXXX bit 23 bit 0 bit 081 Freg source 0 voltage 1 current 10 external 11 slow external bit 2 Slow sampling enabled bit 3 Fast mode bit 4 Jitter fixed bit 5 Frequency fixed bit 6 Voltage range fixed bit 7 Current range fixed bit 8 Filter on bit9 Not used bit 10 Rectified mean enabled 3 Harmonic Contr
121. olding the highest value The sample rate varies according to the wiring configuration WIRING SELECTION SAMPLE RATE Single phase two wire 3 64S Single phase three wire Three phase three wire 6 8uS Three phase four wire 10 0uS Inrush current can also be measured using the data log function see section 9 1 This has the advantage of allowing the user to view the captured inrush waveforms and of making other measurements on the same data To measure inrush current press the INRUSH A key the display will then be similar to that shown below SET MANUAL RANGE Inrush 0 000 A Using the up and down arrow keys beneath the red LED panel select an amps range that is able to accommodate the expected peak inrush current Switch on the load and the display will show the highest current captured PAGE 3 3 BASIC FUNCTIONS PM3000A USER MANUAL If the load is multi phase the inrush current on each phase will have been captured and can be viewed with the CH1 CH2 and CH3 CHANNEL SELECT keys The highest value captured will be held until the INRUSH key is pressed again to reset the display or a higher value is measured If an overload occurs the display will not clear until the INRUSH key is pressed even if the overload is no longer present Press another Function key to to the previous displays 3 1 10 IMPEDANCE The impedance of a load can be measured by pressing the IMPEDANCE key The total i
122. onsumed This function can be programmed to respond to true rms or rectified mean current When used in conjunction with the FUND key the integrator will display energy consumption due to fundamental components only AV PF AVERAGE POWER FACTOR This displays the average power factor during the integration interval When used in conjunction with the FUND key the integrator will display average power factor due to fundamental components only PAGE 7 1 INTEGRATOR PM3000A USER MANUAL 7 1 6 CORR VAR CORRECTION VARS 7 2 This displays the value of the VArs reguired to correct the average power factor to a target power factor pre set by the user F P 2 can be used to change the default value from 1 000 The correction will calculate the necessary VArs to provide the phase shift to reach the target power factor it does not compute the total VArs e g if a poor power factor is completely due to distortion no amount of phase lead or lag will improve it This implies that the correction VArs value will be very low due to the fundamental power factor being unity INTEGRATOR MENU The integrator allows total flexibility and is controlled in response to 1 Manual control i e local control 2 External remote control 3 The internal real time clock 4 IEEE commands The required integrating mode is selected by pressing the INTEGRATOR key in the Menu section of the front panel The display will show ENABLE INTE
123. ore or the data has been corrupted the load will be cancelled and the program will exit the menu To SET THE POWER ON DEFAULT The contents of any of the five program stores P1 P5 or the power down setting can be made the power on default set up To do this press the F key Use the SELECT key to display the following F 1 P ON DEFAULT lt select gt or lt enter gt Press ENTER and then use SELECT to display gt standard lt gt program 1 5 lt or gt power down lt Press ENTER to confirm the choice If gt program 1 5 lt is selected then enter the program number using the digit keys and press ENTER again Until the default is changed back to standard the PM3000A will power up with the set up stored in the program number selected To PRINT A PROGRAM SET UP The program configuration currently in use can be printed at any time To print any other program set up it must first be loaded To print press P then use the SELECT key to display gt print program lt Press ENTER and select gt yes lt The configuration will then be printed PAGE 4 1 PROGRAM SET UP PM3000A USER MANUAL KKK kk KKK KOK KOKK KK A PM3000 configuration data operating mode 1 program switch off 1 phase 2 wire wiring lock on phase lock on function selection 00000001 10000001 11110000 11111111 1 target power factor 1 000 pre averaging time 5 fixed freguency 60 00 channel contr
124. ource AS Three phase Four wire 3 wattmeter method Select 4W PAGE 2 4 PM3000A USER MANUAL BASIC FUNCTIONS CHAPTER 3 BASIC FUNCTIONS BASIC FUNCTIONS PM3000A USER MANUAL PM3000A USER MANUAL BASIC FUNCTIONS 3 1 BASIC MEASUREMENT FUNCTION KEYS 3 1 1 W TRUE POWER Measures accurately the power absorbed by a load or delivered from an AC source even with distorted waveforms The instrument is AC DC coupled see section 3 2 4 and therefore measures the total real power Connect the PM3000A as shown in the appropriate connection diagram see section 2 3 and select W The instrument is fully autoranging and the display will show the actual power in watts The polarity indicates the direction of power flow Real power is computed as 1 W vi dt T Jo v and i represent instantaneous volts and amps The polarity of Watts VArs fundamental and PF fundamental are given in the table below The displacement angle is the angle of the current fundamental with reference to the voltage fundamental 0 90 180 270 360 For Watts indicates positive power flow indicates negative power flow VA APPARENT POWER Determines the apparent power absorbed by a load or delivered from a source Connect the instrument as for power measurements and select VA VA is computed as VA x Arms VAR REACTIVE POWER VOLT AMPERES The PM3000A computes a
125. out VAr hours NR1 0 disabled 1 enabled 167 printout A hours NR1 0 disabled 1 enabled 168 printout Average pf NR1 0 disabled 1 enabled 169 printout C VAr NR1 0 disabled 1 enabled 170 printout Reactance NR1 0 disabled 1 enabled 171 printout V harmonics NR1 0 disabled 1 enabled 172 printout A harmonics NR1 0 disabled 1 enabled 173 printout V thd NR1 0 disabled 1 enabled 174 printout A thd NR1 0 disabled 1 enabled 175 printout Freguency NR1 0 disabled 1 enabled 176 WATT HARMONICS NR1 0 disabled 1 enabled 177 LOGIC OUTPUTS NR1 0 disabled 1 enabled 178 N A 179 INTEGRATOR RESET NR1 0 disabled 1 enabled 180 DISPLAY CHANNEL NR1 0 CH1 1 CH2 2 CH3 3 SUM 4 NEU 181 DISPLAY FUNCTION NR1 0 31 182 UPPER RIGHT DISPLAY NR1 0 7 183 UPPER LEFT DISPLAY NR1 0 7 184 SELECTED HARMONIC NR1 0 99 185 DISPLAY FORMAT NR1 0 single 1 multiple 2 4 Function 186 LOWER RIGHT DISPLAY NR1 0 7 187 LOWER LEFT DISPLAY NR1 0 7 188 N A 189 N A 190 REVERSED PF SIGN NR1 0 disabled 1 enabled 191 SUM A A4 A2 A3 3 NR1 0 disabled 1 enabled 192 SUM V V4 V9 V3 3 NR1 0 disabled 1 enabled 193 AUXILIARY INPUTS NR1 0 disabled 1 enabled 194 TORQUE INPUT NR1 0 10V full scale 1 1V full scale 195 TORQUE INPUT 10 9 to 109 per volt 196 TORQUE INPUT NR1 0 torque in Nm 1 torque in ftlb PAGE 10 46 PM3000A USER MANUAL
126. pendent wiring modes F P 58 and F P 78 set the AUTO averaging depth for CH2 and CH3 respectively In FIXED mode the instrument performs averaging as before but large changes at the input will not reset the averaging store This can be useful when measuring an input which contains large voltage spikes for example To make a selection press the AVG key Choose gt fixed lt or gt auto reset lt with the SELECT key and press ENTER If fixed averaging has been chosen the green LED next to N beneath the AVG key will illuminate Next enter an averaging depth using the digit keys and press ENTER The averaging store can be reset by pressing the channel key for the measurement currently selected For example if Watts is currently selected pressing the W key resets the averaging store Zeros are temporarily displayed for all measurements before new averaged values are displayed COUPLING INPUT COUPLING AC DC coupling is normally selected The PM3000A computes results due to all components in the input voltage and current including DC and low freguency components in this mode AC coupling the instrument means that DC and low freguency components are ignored This is useful measuring the ripple voltage on rectifier outputs and for calibration of instruments that are only AC coupled Press the COUPLING key to toggle between AC DC coupling and AC coupling only SHUNT SHUNT SELECTION This key switches betwee
127. perating mode select 7 PWM DRIVES by pressing the F key and then using SELECT and ENTER Four options are then available gt disable lt gt input lt gt output lt gt real time output lt All wiring configurations for the PWM mode that are 30 3W will enable the third channel CH3 as independent This allows the DC link of the drive to be measured simultaneously Using the DC link efficiency E measurements for the drive can be derived DC Link power CH3 Useful Output power 34 3w Input power 34 3w DC Link power CH3 OuTPUT MODE 1 Connect the output of the drive to the PM3000A and motor in either 303W or 304W mode see diagram in section 2 3 2 Select PWM DRIVES gt output lt mode 3 Select the chosen frequency band depending on the motor operating speed range e g gt 5Hz to 1kHz lt using the SELECT and ENTER keys 4 Select gt 303W lt or gt 3 4W lt as required 5 Select High Bandwidth mode see section 5 2 Check that the frequency is being monitored correctly Measurement of the RMS values fundamentals and harmonics up to the limit frequency of the filter can now be analyzed It is normal for there to be a large difference between the Vrms amp Vfund values but only small differences between Arms amp Afund and Wrms amp Wfund as the inductive motor filters the current Harmonic Losses Total Power Fundamental Power Note that if a printer output is selected then Watts Ha
128. products that prove to be defective For repair services under warranty the instrument must be returned to a service center designated by Voltech Purchaser shall pre pay shipment charges to service center and Voltech will pay shipment charges to return instrument to purchaser Limitation of Warranty The foregoing warranty shall not apply to defects resulting from unauthorized modification or misuse or operation of the instrument outside its specification No other warranty is expressed or implied Whilst every care has been taken in compiling the information in this publication Voltech Instruments Ltd cannot accept legal liability for any inaccuracies contained herein Voltech Instruments Ltd has an intensive program of design and development which may well alter the product specification They reserve the right to alter specification without notice and whenever necessary to ensure optimum performance from its product range Because software is inherently complex and may not be completely free of errors you are advised to verify your work In no event will Voltech be liable for direct indirect special incidental or consequential damages arising out of the use of or inability to use software or documentation even if advised of the possibility of such damage In particular Voltech is not responsible for any lost profits or revenue loss of use of software loss of data cost of substitute software claims by third parties or for other simil
129. put channel The display will be similar to that shown below CHART RECORDER R1 gt CH1 lt Now use the Channel Select keys to set the required channel CH1 CH2 CH3 or N and press ENTER The function keys may be used to set the required parameter e g Watts VA PF etc followed by the FUND key if the fundamental is to be recorded Then press ENTER The display will be similar to that shown below RECORDER MINIMUM R1 gt 0 000 lt Use the digit keys along with the k M key to set the minimum value The SELECT key will allow the sign to be changed Press ENTER and use a similar procedure to set the maximum value Press ENTER again and the display returns to the recorder channel selection mode When level of reading for a selected function is less than or equal to the lower limit the Chart Recorder output will be zero When the level of the reading for the selected function is greater than or equal to the upper limit the Chart Recorder output will be 5V Repeat the above process to set all required recorder channels and then use SELECT to display gt Quit lt Press ENTER to save the settings and return to the default display PAGE 8 5 INTERFACE SET UP PM3000A USER MANUAL 8 5 8 5 1 8 5 2 The chart recorder output is now active and available at the ANALOGUE ALARMS output connector on the rear panel See the next section for the pin out connections To disable it re enter the
130. quired but the value parameter is ignored CMD gt output 10 CAL CH1 VFI 6 In the case of the filter calibration commands the range parameter is set to a value that is the correct range for the magnitude of the filter calibration input signal For Voltage 10 Vrms use range 6 For Current 250mArms use range 4 PAGE 10 24 PM3000A USER MANUAL IEEE COMMUNICATION READ CALIBRATION VALUES Class Retum type Format Options Return format Example Notes CFG device guery NR3 numerical response data or string response data CAL CH1 VLT range CH2 AMP CH3 EXT VFI AFI read calibration value for channel 1 read calibration value for channel 2 read calibration value for channel 3 read voltage calibration read current calibration read external shunt calibration VFI voltage filter calibration AFI current filter calibration range range calibrated 1 12 4 digit signed mantissa with 2 digit exponent UNCAL CMD gt output 10 CAL CH2 VLT 3 CMD gt enter 10 6 73E 02 This represents the calibration correction for the given channel The calibrated value of an input is given by actual value measured value x 1 calibration VFI and AFI do not require a range parameter CONFIGURE Class Return type Format Options Return format Example Notes device command none CFG prog data prog integer program location 0 282 data appropriate integer of floating point data none CM
131. r frequency and harmonic components True power and other rms parameters are computed from the PREFILTERED data VOLTAGE VOLTAGE FUNDAMENTAL CURRENT Mm uc There is a choice of 3 filters selected according to the frequency range of the motor 5Hz to 1kHz 400ms display update 0 5Hz to 50Hz 4sec update time 0 1Hz to 40Hz 16sec update time Notes 1 The low bandpass filter is normally applied to prevent anti aliasing This will affect the PWM pre filtered data values PWM filtered values will be unaffected 2 Output mode harmonics are blanked to give zero values above the maximum frequency of the filter selected For example Filter 5Hz to 1kHz Motor freguency 30 Hz Max harmonic computed 33rd 990Hz 3 Input mode harmonics are blanked at frequencies above the limit 400 input window Hz 4 For low loaded motors it is advisable to remove the display blanking as the fundamental can be very small compared to the total rms value In such a case the display value may be forced to zero Select F P 26 Low value blanking 5 It is important to check that the correct frequency has been obtained when the mode is selected If not then select FREQ SOURCE to gt current lt 6 The wiring for PWM mode is either 303W or 304W The N channel provides computed values of neutral current Arms AFund Acf Apk Aharm and Athd PAGE 5 10 PM3000A USER MANUAL THE FUNCTION MENUS 5 7 1 5 7 2 use this o
132. range kHz 250 x 0 02 reading 100 0 05 reading 0 05 range 800uA 0 05 reading 0 05 range 100uA 0 1 reading 0 05 range kHz x 0 08 reading 100u A 0 1 reading 0 05 range kHz 250 x 0 04 reading 100 Less than 2 rms Less than 20mA rms 50mA 002 model 30A rms must be limited by ext fuses or CT s 200A rms PAGE 11 1 PM3000A USER MANUAL SPECIFICATION Input Impedance INT 12 5mQ on all ranges Std amp 001 models EXT 1MQ in parallel with 100pF all ranges 002 model INT 3 5mQ on all ranges EXT 20KQ in parallel with 33pF all ranges N B The DC accuracy stated is only valid for a unit using the auto zero facility 11 3 POWER W Ranges Auto or Manual 144 ranges corresponding to V amp A Accuracy DC 23 5 C sinewave Std amp 001 models 45 to 450Hz 0 1Hz to 250kHz 250 to 500kHz 002 model DC 45 to 450Hz 0 1Hz to 250kHz 250 to 500kHz Polarity 11 4 APPARENT POWER VA Ranges Auto or Manual 144 ranges corresponding to V amp A Accuracy 0 1Hz to 500kHz 25mW to 400kWpk with scaling to 100 000MW A reading x V error V reading x A error 0 04 reading A reading x V error x PF V reading x A error x PF 0 04 PF reading HE A reading x V error x PF V reading x A error x PF kHz x 0 04 PF reading HE A reading x V error PF V reading x A error x PF
133. rial poll status byte is set according to the logical bitwise AND of the data status register and the data status enable register DEVICE CLEAR device command none DVC none none CMD gt output 10 DVC Same function as DEVICE CLEAR It is a useful function for RS232 applications ESE SET STANDARD EVENT STATUS ENABLE REGISTER Class Return type Format Data format Example Notes common command none ESE flags 0 255 EXE QRE opc OPC operation complete ARE unterminated guery error EXE execution error CME command error CMD gt output 10 ESE 32 The ESB bitin the serial poll status byte is set according to the logical bitwise AND of the standard event status register and the standard event status enable register PAGE 10 27 IEEE COMMUNICATION PM3000A USER MANUAL READ STANDARD EVENT STATUS ENABLE REGISTER Class common query Return type NR1 numeric response data Format ESE Options none Return format 0 255 EXE QRE opc OPC operation complete QRE unterminated query error EXE execution error CME command error Example CMD gt output 10 ESE CMD gt enter 10 32 The ESB bit in the serial poll status byte is set according to the logical bitwise AND of the standard event status register and the standard event status enable register ESR READ STANDARD EVENT STATUS REGISTER Class common query Return type NR1 numeric r
134. riod the unit under test has failed the test If any harmonics exceed the first set of limits for more than 15 seconds 10 over any 2 5 minute interval it has failed the test and does not meet the IEC specifications for fluctuating harmonics To choose this mode of analysis select gt fluctuating harmonics lt and then press ENTER The display then shows IEC555 MODE Freq xx xx Select the appropriate display harmonic by pressing A HARM the digit keys and ENTER The harmonics can be stepped through using SELECT Refer also to our EN60555 61000 3 Test Software Disk which provides a real time bargraph of fluctuating harmonics with IEC limits and graphs of single harmonic levels over time PAGE 5 5 THE FUNCTION MENUS PM3000A USER MANUAL 5 6 3 5 6 4 CHANGING VOLTAGE Flicker is defined as the fluctuating luminance of lighting eguipment caused by voltage fluctuations on the supply system to which it is connected Changing Voltage is a method of measuring flicker to EN60555 3 and is suited to measurements where the load is changing regularly The EN60555 Standard 555 3 stipulates limits for voltage disturbances in the supply system that can be caused by household and similar electrical equipment The limits are defined in the graph below This shows the magnitude of the maximum permissible percentage voltage changes AU U with respect to the allowed number of voltage changes per minute R AU
135. rmonic series 17 HARMONIC REFERENCE NR1 0 fundamental 1 RMS 18 HARMONIC DISPLAY NR1 0 percentage 1 actual value V A 19 THD FORMULA NR1 0 HO dc excluded 1 HO dc included 20 DISPLAY UPDATE TIME NR1 0 255 in units of 100ms 21 FIXED FREQUENCY NR1 O disable 1 enable 22 FIXED FREQUENCY NR3 23 FAST MODE NR1 O disable 1 enable 24 N A 25 JITTER SELECTION NR1 0 auto selection 1 manual 26 LOW LEVEL BLANKING NR1 disable 1 enable 27 WAVEFORM SNAPSHOT NR1 0 disable 1 enable 28 RANGE LOCKING NR1 0 locked 1 independent 29 N A 30 DISABLE CHANNEL CH1 NR1 0 disable 1 enable 31 CURRENT SHUNT CH1 NR1 0 Internal 30A shunt 1 External 2 5V input 32 AC DC COUPLING CH1 NR1 0 AC coupled 1 AC DC coupled 33 BALLAST U SONIC CH1 NR1 0 off 1 50Hz 2 60Hz 34 PHASE REFERENCE CH1 NR1 0 voltage 1 current PAGE 10 43 IEEE COMMUNICATION PM3000A USER MANUAL 35 HIGH BANDWIDTH CH1 NR1 0 high 1 low 36 LOAD FIXED FREA CH1 NR1 0 disabled 1 enabled 37 AVERAGING CH1 NR1 0 fixed 1 auto reset 38 AVERAGING DEPTH CH1 NR1 1 64 39 FREQUENCY SOURCE CH1 NR1 0 voltage 1 current 2 external 3 slow external 40 VOLTAGE RANGE CH1 NR1 10 0 5 1 1 2 2 3 5 4 10 5 20 6 50 7 100 8 200 9 500 10 1000
136. rmonics can be selected for printout if Aharm and Vharm have previously been selected in the menu For measurement of harmonics above the upper filter limit see the later section on harmonics INPUT MODE If the output of the drive is unbalanced the input waveforms are modulated by the output motor frequency Accurate measurements are obtained by synchronizing the sampling of data to the line frequency and sampling over an interval t between 1 and 10 seconds as follows Output frequency f t input time window 1 lt f lt 10 10 f f lt 1 1 f PAGE 5 11 THE FUNCTION MENUS PM3000A USER MANUAL For example if f 7 2Hz then set t to 10 7 2 1 39 or a multiple of this value 1 4 Connect the input of the drive to the PM3000A in 333W 304W mode see diagram in section 2 3 Select PWM DRIVES gt input lt mode and the display will be as follows PWM INPUT WINDOW gt 1 000 lt Use the digit keys to set the calculated value for e g 1 39 and press ENTER If you make a mistake press SELECT to re enter the value and then press ENTER Select gt 303W lt or gt 4 lt as required The PM3000A will now measure input power over an integral number of input cycles within the selected time window of measurement 1 39 seconds 5 7 3 REAL TIME OUTPUT MODE Real time output of the FILTERED values of Vrms Arms Wrms and PF can be output as analogue outputs for chart recorders 1
137. rmware version 1 67 or above Power Analyzer to Computer interface RS232 Comm ports 1 4 IEEE 488 All current National Instruments cards supporting 488 2 protocols 10 8 2 INSTALLING VPAS 1 Turn on your computer and run Windows 2 Insert the VPAS set up disk into the computer floppy disk drive 3 Select RUN and choose SETUP on the VPAS disk to start the installation process PAGE 10 50 PM3000A USER MANUAL IEEE COMMUNICATION The VPAS installation program will prompt you to specify 2 directories one for the CVI Run Time executable and one for VPAS If you have other programs that were written in LabWindow CVI you should choose the same Run Time directory When installation is complete a new program group called Voltech Software will appear on your computer desktop To run VPAS simply double click on the VPAS icon found in the Voltech Software Program Group Please Note Due to the complexity of VPAS it is not recommended to run any other applications while VPAS is running It is also not recommended to run VPAS while logged on to a network If you encounter any problems or difficulties while using this demo please contact your Voltech supplier PAGE 10 51 IEEE COMMUNICATION PM3000A USER MANUAL PAGE 10 52 PM3000A USER MANUAL SPECIFICATION CHAPTER 11 SPECIFICATION SPECIFICATION PM3000A USER MANUAL PM3000A USER MANUAL SPECIFICATION 11 1 VOLTAGE V Range
138. s set according to the logical bitwise AND of the data status register and the data status enable register DSE Class Return type Format Options Return format Example Notes READ DATA STATUS ENABLE REGISTER device query NR1 numerical response data DSE None 0 255 o y COVA OVV AVF NDV DVL DVL data available enable OVV Voltage overload enable AVF averaging full enable OVA Current overload enable NDV new data available enable CMD gt output 10 DSE CMD gt enter 10 2 The DAS bit in the serial poll status byte is set according to the logical bitwise AND of the data status register and the data status enable register PAGE 10 26 PM3000A USER MANUAL IEEE COMMUNICATION DSP READ DISPLAY Class Device guery Retum type string response data Format DSP Options none Return format 40 ASCII characters in quotes Example CMD gt DSP Return gt 239 5V 67 89mA Watts 12 345W DSR READ DATA STATUS REGISTER Class Return type Format Options Return format Example Class Return type Format Options Return format Example Notes device query NR1 numerical response data DSR none 0 255 o y OVA OVV AVF NDV DVL DVL data available OVV Voltage overload AVF averaging full OVA Current overload NDV new data available CMD gt output 10 DSR CMD gt enter 10 7 This command clears the data status register The DAS bit in the se
139. t in the data status register see DSR or via the SPOLL register if the appropriate enable register is set see DSE For Harmonics VHM AHM The HRM command must be used to set up the Harmonic to be read e g output 10 HRM 3 output 10 FNC CH1 VHM enter 10 dummy read to clear buffer output 10 HRM 3 output 10 FNC CH1 VHM enter 10 reads harmonic 3 Harmonics can be returned as s or absolute value See CFG 18 PAGE 10 29 IEEE COMMUNICATION PM3000A USER MANUAL Class device query Return type NR3 numerical response data Format FND CH1 function CH2 CH3 CHN SUM Options FND CH1 WAT Watts CH2 VAS VA CH3 VAR VArs CHN VLT Volts SUM AMP Amps PWF Power factor IMP Impedance EFF Efficiency WHR Watt Hrs VAH VA Hours VRH VAr Hours AHR Amp Hours APF Average Power Factor CVR Correction VArs VHM Voltage Harmonic AHM Current Harmonic VHA Voltage Harm Angle AHA Current Harm Angle VMN Voltage rectified mean AMN Current rectified mean Return format 4 digit mantissa with 2 digit exponent 1 Example CMD gt output 10 FND CH1 VLT CMD gt enter 10 2 395E 02 Notes Data can be synchronized to new data values by using the NDV bit in the data register see DSR or via the SPOLL register if the appropriate enable register is set see DSE FRD READ FOREGROUND DATA Class device query Return type multiple NR3 numerical response data separated by commas terminat
140. t is the Mechanical Power displayed in the auxiliary window and Power In is the simultaneous electrical power input to the motor on the gt channel PAGE 8 9 INTERFACE SET UP PM3000A USER MANUAL If a background selection printout is requested while this mode is selected it will automatically printout the auxiliary data there is no means of requesting it in the printer menu as seen in the following example 04 July 98 15 54 RMS DC COUPLED VOLTAGE FREQUENCY SOURCE kkkkkkkkkkkkk CHANNEL 1 kkkkkkkkkkkkk Watts 12 367 W Vrms 96 96 V Arms 127 72mA Kk kkk kk kkk kkk CHANNEL 2 Kiki kkk kkk kk Watts 13 830 W Vrms 97 21 V Arms 142 37mA kkkkkkkkkkkkk CHANNEL 3 kkkkkkkkkkkkk Watts 13 297 W Vrms 98 01 V Arms 136 12mA Kk kkk kkk kkk kk SUM 1 2 3 Kk kkk kk kkk kk Watts 39 49 W Vrms 168 69 V Arms 135 38mA Kk kkk kk kkk kkk AUXILIARY Kk kkk kk kkk kkk Torgue 50 63 Nm Speed 7 002 rpm Power 37 13 W Efficiency 94 01 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk PAGE 8 10 PM3000A USER MANUAL DATA LOG CHAPTER 9 DATA LOG DATA LOG PM3000A USER MANUAL PM3000A USER MANUAL DATA LOG 9 1 DATA LOG OVERVIEW 9 2 The PM3000A can record and analyze short term events from a few milliseconds up to several seconds The waveforms are recorded and parameters already set up on the printer menu are printed after analysis Data logging can be triggered manually or triggered externally using the
141. t voltage deviations test IEC1000 3 SOFTWARE FoR WINDOWS This versatile software package greatly simplifies the task of making the measurements that qualify a product under test to the specification EN61000 The software runs on a PC and works with your Voltech PM3000A Power Analyzer and the programmable ac source of your choice The test equipment may be connected to the PC using either an RS232 or IEEE488 interface The software allows you to quickly set up the tests to be done and controls the ac source and Power Analyzer to make the measurements It then reads back the measurement data and presents the results in easy to read tables and graphs including comparisons with the specification limits and highlighting the Passes and Fails When the test is finished all results can be archived to disk printed or passed on to another application for example to be included in a document produced by a word processor INSTALLATION To enable this software to install and run correctly please ensure that your PC and relevant hardware conforms to the specifications outlined as follows PAGE 5 8 PM3000A USER MANUAL THE FUNCTION MENUS 5 6 8 2 PC REQUIREMENTS 5 6 8 3 PC 486 DX or higher RAM At least 4Mb Disk 1Mb of hard disk space for program installation plus at least 1Mb for recording test data The requirements for each type of test are as follows Waveform capture 1 5kb per waveform Steady State Harmonics 1kb per
142. tage speed input range 0 10V 1 1V scale 10 9 to 109 pulse pulses per revolution CMD gt output 10 AUX SIU 0 10 Measured values can be read using BRD and FRD commands see later sections and corresponding notes SET AVERAGING device command none AVG FIX AUT FIX set fixed averaging depth AUT set auto averaging depth 1 64 CMD gt output 10 AVG FIX 16 BAL Class Return type Format Options Example SET BALLAST ULTRASONIC MODE device command none BAL 50H 60H DIS disable ballast mode 50H set ballast mode for lock to 50Hz 60H set ballast mode for lock to 60Hz CMD gt output 10 BAL 50H PAGE 10 20 PM3000A USER MANUAL IEEE COMMUNICATION Class device query Return type arbitrary ASCII response data Format BRD BRD CH1 CH2 CH3 CHN SUM AUX Options BRD Channels BRD CH1 Channel 1 only BRD CH2 Channel 2 only BRD CH3 Channel 3 only BRD CHN Neutral Channel BRD SUM Summation values BRD AUX Auxiliary inputs PM3000A 001 only Return format sequence of data strings terminated by END Example First select the functions you wish to acquire OUTPUT 10 SEL CLR OUTPUT 10 SEL CH1 OUTPUT 10 SEL VLT OUTPUT 10 SEL AMP OUTPUT 10 SEL FRQ OUTPUT 10 SEL PWF OUTPUT 10 SEL FUN Enable the AVF Averaging full bit of the Background Data Status Register OUTPUT 10 BSE 4 Trigger background analysis OUTPUT 10 TRG Ensure that IEEE488 2
143. te cycle of 50Hz or 60Hz at the fastest sampling rate Once captured the subsequent processing is carried out as normal including autoranging The display automatically sets to a four function display The frequency displayed is the carrier frequency 4 If three phase three wire mode has previously been selected as the wiring configuration then after selecting 50 60Hz step 2 you can select INDEPENDENT CH3 This allows you to measure ballast power output using CH1 CH2 and gt whilst measuring input power on CH3 F 9 TRANSFORMER MODE The Transformer Test Mode has an application in the measurement of no load losses when testing large e g 10 to 20 kVa power transformers The no load losses include core loss dielectric loss conductor loss in the winding due to excitation current and conductor loss due to circulating current in parallel windings The core loss is usually the most important it is a function of the magnitude freguency and waveform of the input voltage and it also varies significantly with temperature The method of testing is specified in the Standards IEC76 1 and IEEE C57 An example single phase test circuit as specified in IEEE C57 is as follows i rok T where Arms Ammeter rms W Wattmeter Vrms Voltmeter rms Vav Voltmeter mean sensing rms scaled for sinewave PAGE 5 14 PM3000A USER MANUAL THE FUNCTION MENUS 5 9 1 Other test circuits are shown in the Standards
144. ter string followed by a line feed The buffer may only be read once each measurement cycle and will return a single line feed on each subsequent read until new data is available 10 4 3 DATA OUTPUT SOURCE BUFFER FORMAT 1 XX X XXXXXXXXXXXXXXXXXXXXXXXX B1 This allows the full versatility of the instrument to be utilized on the IEEE bus Over 400 different measurements may be initialized with this one command There are 27 arguments in three fields consisting of i Channel Select 2 digits This field comprises the decimal addition of the following 01 Ch 1 results 02 Ch 2 results 04 Ch 3 results 08 SUM results 16 Neutral results E g to select results from Channels 1 and 2 only the string to send would be B1 03 X XXXXXXXXXXXXXXXXXXXXXXXX To select results from Channels 1 and 2 and Neutral B1 19 X XXXXXXXXXXXXXXXXXXXXXXXX To select results from Channel 3 only send B1 04 X XXXXXXXXXXXXXXXXXXXXXXXX ii Select fundamental components 1 digit B1 xx 1 XXXXXXXXXXXXXXXXXXXXXXXX will store the fundamental components of those functions where the PM3000A computes the fundamental B1 XX 0 XXXXXXXXXXXXXXXXXXXXXXXx will not store fundamental components iii Select function 24 digits Digit 1 selects Watts digit 2 selects VA etc To select the function write 1 Write O if not required PAGE 10 4 PM3000A USER MANUAL IEEE COMMUNICATION Position Table 1 Watts 13 Watt Hours 2 VA 14 VA Hours 3 VArs 15 VAr
145. th 4 digit signed mantissa and 2 digit signed exponent numeric response type Data may be entered as integer integer with decimals or scientific e g to set target power factor the following commands have the same effect output 09 cfg 2 1 output 09 cfg 2 1 00 output 09 cfg 2 1 0000E 00 Two detailed examples of operation are given under the BRD and FRD commands listed later 10 6 2 STATUS REPORTING The IEEE488 2 status byte contains the mandatory MSS ESB and MAV bits with two instrument specific summary bits BAS and DAS The enable registers are set by the user and act as a mask to reflect chosen elements of the appropriate status registers to the Status Byte Register Transparency is set by setting the appropriate bit of the enable register to 1 If any of the status registers are read the register is reset to zero 10 6 2 1 STATUS BYTE REGISTER Read by STB or serial poll DAS summary bit to show display data available BAS summary bit to show background data available MAV set whenever there is a message available in the output buffer ESB summary bit to show standard event status MSS master summary status set as a result of the logical bitwise AND of the status byte register with the service request enable register Note that the serial poll register is the same as the status byte register except that bit 6 MSS in stb RQS in serial poll is controlled in order to generate the service request 10 6 2 2
146. the following F 1 P ON DEFAULT lt select gt or lt enter gt Press ENTER and then use SELECT to display gt standard lt gt program 1 5 lt or gt power down lt Press ENTER to confirm the choice If gt program 1 5 lt is selected then enter the program number using the digit keys and press ENTER again Until the default is changed back to standard the PM3000A will power up with the set up stored in the program number selected F 2 BANDWIDTH The power up default is gt low lt i e filter enabled 25 kHz for 001 and standard models 5 kHz for 002 models This option allows the user to select the full 1MHz bandwidth by selected gt high lt F 3 WIRING Various wiring modes are available to suit the various input connections that can be made by the user see Connection Diagrams Section 2 3 All the voltage and current inputs are isolated from each other and from ground PAGE 5 1 THE FUNCTION MENUS PM3000A USER MANUAL 5 3 1 5 3 2 5 3 3 5 3 4 5 3 5 5 3 6 Connection to the PM3000A voltage channel inputs is via 4mm sockets on the rear panel of the instrument Currents up to 30A RMS may be connected directly to similar rear panel sockets For higher current measurement use either a current transformer to reduce the current presented to the PM3000A or an external shunt to derive a voltage input suitable for the external shunt input Four wiring keys are provided on the front p
147. tio W VA which is the true power factor even for distorted waveforms The polarity of the fundamental power factor is given in the table of section 3 1 1 for various angles between current and voltage For PF indicates a leading current indicates a lagging current NB The polarity of the power factor can be reversed if desired see section 6 1 PAGE 3 2 PM3000A USER MANUAL BASIC FUNCTIONS 3 1 7 VPK APK PEAK VOLTAGE OR CURRENT These keys display the repetitive peak current or voltage The peak voltage measurement is used to determine the working voltage of insulation or the voltage available for rectification The peak current measurement can be used to set current limit or trip levels in UPS or similar eguipment Vcr ACF VOLTAGE OR CURRENT CREST FACTOR Crest factor is the ratio of the magnitude of the peak value to the RMS value of a waveform F Peak Value RMS Value The crest factor of a sinewave is N2 or 1 41 Many loads such as rectifiers with capacitor filters produce a distorted current waveform where the Amps crest factor will be much larger than V2 INRUSH A PEAK INRUSH CURRENT The INRUSH A key allows the user to capture and hold the peak current of all three current channels This feature is typically used to display the peak inrush current as power supplies motors etc are switched on The measurement is made by sampling continuously on all three current channels and h
148. ultiple display FOUR FUNCTION DISPLAY Press the DISPLAY key and use the SELECT key until the display is as shown below DISPLAY FORMAT gt four function lt Press ENTER to select this option and then choose the parameters to be displayed in a manner similar to that for single function display Note that not all are valid for the four function display CLOCK SET DATE AND TIME The date and time may be changed by the user To do this press the CLOCK SET key Use SELECT to switch between gt accept lt and gt change lt and then press ENTER If changing the current date and time use the digit keys to enter new values in the format shown Press ENTER after each entry and again to gt accept lt the revised date and time PAGE 3 8 PM3000A USER MANUAL BASIC FUNCTIONS 3 3 3 3 1 3 3 2 HARMONIC ANALYSIS The PM3000A will measure the harmonic content of the voltage and current waveforms for all components up to the 99th harmonic It will also analyze the current flowing in the neutral wire of a 3 phase 4 wire system and calculate any DC components A specially designed mode is incorporated for testing to EN60555 and EN61000 3 Flicker and fluctuating harmonics as well as steady state harmonics can be measured in the IEC555 mode See section 5 6 The VPAS Demo software supplied can be used to display and print harmonic barcharts see section 10 8 Harmonic measurements can be made at any frequency
149. und integrator and datalog i Display buffer The contents of the foreground results buffer will be sent This is the default setting ii Background results buffer When the PM3000A takes a measurement it computes not only the three or four results to be viewed on the front panel display but also results for all the functions on every active channel These are stored and averaged in the background results buffer and are available over the IEEE bus PAGE 10 2 PM3000A USER MANUAL IEEE COMMUNICATION 10 4 iii Integrator results buffer When the integrator is stopped the results for all active channels are automatically stored in the integrator results buffer These results only become available at the end of a measurement cycle The duration of each cycle normally varies from 0 5 1 second This time will increase if more than one harmonic is to be analyzed or the input frequency is very low E g A 0 1Hz input will take at least 10 seconds to update results iv Datalog Data captured during datalog can be transferred to the PC as computed values as 8 bit sample data or as 16 bit filtered data IEEE 488 1 OPERATION It is first necessary to enable IEEE operation as described in sections 10 1 and 10 2 Use the front panel keys to enable IEEE488 1 and disable IEEE488 2 The following commands are available to control the operation of the PM3000A Additionally ALL OF THE IEEE488 2 COMMANDS can be used alongside these comm
150. urrent crest factor IMP Impedance EFF Efficiency WHR Watt Hrs VAH VA Hours VRH VAr Hours AHR Amp Hours APF Average Power Factor CVR Correction VArs VHM Voltage harmonic AHM Current harmonic VDF Volts distortion ADF Current distortion FRQ Frequency TIM Integrator time VDC Volts DC ADC Amps DC VHA Voltage Harm Angle AHA Current Harm Angle VMN Voltage Rectified Mean AMN Current Rectified Mean TTM Transformer Test parameters Options CLR clears entire selection others set selection for that function Return format none Example CMD gt output 10 SEL CLR CMD gt output 10 SEL CH1 CMD gt output 10 SEL VLT SEL WAT SEL AMP SHU SET INTERNAL EXTERNAL SHUNT Class device command Return type none Format SHU INT EXT Options INT use internal shunt EXT use external shunt Return format none Example CMD gt output 10 SHU EXT PAGE 10 39 IEEE COMMUNICATION PM3000A USER MANUAL SRE SET SERVICE REQUEST ENABLE REGISTER Class common command Return type none Format SRE flags Data format 0 255 1 ess w BAS DAS DAS data available summary see DSR BAS background data available summary see BSR MAV message available ESB standard event status summary see ESR Example CMD gt output 10 SRE 1 Notes The RQS bit in the serial poll status byte is set according to the change in the logical bitwise AND of the status byte register and the service request enable
151. utput 10 FSR VLT HGH SET HIGH BANDWIDTH MODE Class Return type Format Options Return format Example device command none HGH ENB DIS ENB enable 1MHz bandwidth DIS disable 1MHz bandwidth none CMD gt output 10 HGH ENB HRM SET SINGLE HARMONIC Class Return type Format Options Return format Example device command none HRM harm harm integer harmonic number 0 99 none CMD gt output 10 HRM 3 SET MAXIMUM HARMONIC FOR SERIES Class Return type Format Options Return format Example device command none HMX ODD harm ALL ODD only odd harmonics ALL use both odd and even harmonics harm integer maximum harmonic 0 99 none CMD gt output 10 HMX ODD 39 IDN Class Return type Format Options Return format Example IDENTIFY common query arbitrary ASCII response data IDN none VOLTECH PM3000 0 version CMD gt output 10 IDN CMD gt enter 10 VOLTECH PM3000A 1234 v2 15 PAGE 10 32 PM3000A USER MANUAL IEEE COMMUNICATION SET UP IEC555 HARMONICS Class device command Return type none Format EC DIS 1EC FIX CH1 FLU CH2 FLI CH3 FLM Options disable IEC555 mode flicker meter fixed harmonic mode fluctuating harmonic mode changing voltage Return format Examples Setting up Fluctuating Harmonic Mode CMD gt output 10 IEC FLU CH1 Returning Data to Fixed Harmonic Mode e g output 10 IEC FIX CH1 Setup Fixed Harmonics output 1
152. utral wire Total watts volts etc are displayed as gt values CHANNEL 3 ONLY Select for single phase measurements on channel CHANNEL 2 ONLY Select for single phase measurements on channel 2 PAGE 5 2 PM3000A USER MANUAL THE FUNCTION MENUS 5 3 7 5 3 8 5 3 9 5 4 INDEPENDENT CH3 Channel 3 will operate completely independently of the other channels For example use in conjunction with 3 phase 3 wire mode for taking simultaneous input and output measurements on 3 phase rectifier assemblies ALL INDEPENDENT All three channels operate completely independently of each other Each channel operates as a completely independent power analyzer sourcing its own frequency and selecting ranges and set up functions PHASE TO PHASE VOLTAGE When voltage measurements are made by the PM3000A the value displayed is normally the voltage across the Vhi and Vlo inputs In the case of three phase four wire multi phase measurements three watt meter this voltage is normally the phase to neutral volts In other cases the required voltage is the phase to phase voltage When wiring is set to 32 4W mode an additional menu allows the PM3000A voltage display to be configured to display phase to phase measurement Select 324W in the wiring menu to achieve this The voltage readings will be from phase to phase computed vectorially from the phase to neutral data F 4 EFFICIENCY The PM3000A can be configured to ca
153. within the bandwidth of the instrument V HARM VOLTAGE HARMONIC Press the V HARM key Enter the required harmonic using the number keys followed by ENTER Use SELECT if you make a mistake during number entry The chosen harmonic amplitude is displayed For harmonic 0 DC component and harmonic 1 fundamental the absolute value of the amplitude is displayed for other harmonics up to 99 the harmonic amplitude is displayed as a percentage of the fundamental To display harmonics 2 to 99 as absolute values use F P 18 see section 6 1 To view another harmonic press V HARM again and repeat the above procedure or press ENTER for the next highest order harmonic Harmonic phase information is not displayed in the multiple channel display To get a printout of all harmonics up to a pre set limit use the printer selection menu see section 8 1 Watts harmonics can also be selected for print if both volts and current harmonics are selected A HARM CURRENT HARMONIC Press the A HARM key Enter the required harmonic using the number keys followed by ENTER Use SELECT if you make a mistake during number entry The chosen harmonic amplitude is displayed For harmonic 0 DC component and harmonic 1 fundamental the absolute value of the amplitude is displayed for other harmonics up to 99 the harmonic amplitude is displayed as a percentage of the fundamental To display harmonics 2 to 99 as absolute values use F P
154. xample Class Retum type Format Return format REPORT SELF TEST common guery NR1 numeric response data TST none 0 255 EEP NVR SHR BNK RAM ROM CPU ROM RAM BNK CPU error ROM checksum error RAM read write error ROM RAM error from extended memory SHR RAM read write error on DSP NVR non volatile RAM checksum error EEP EEPROM error CMD gt output 10 TST CMD gt enter 10 0 SET UP TRANSFORMER TEST MODE device command none TTM DIS TTM VAV TTM KAY TTM PWC none to disable Transformer Test Mode to enable Transformer Test Mode TTM Class Return type Format Return format READ BACK THE TRANSFORMER TEST MODE RESULTS device query multiple NR3 numeric response data separated by commas TTM CH1 TTM CH2 TTM CH3 TTM SUM NR3 NR3 NR3 NR3 NR3 NR3 six results Watts Vrms Arms Vav k and P for the selected channel PAGE 10 41 IEEE COMMUNICATION PM3000A USER MANUAL WAI WAIT FOR OPERATION Class Return type Format Options Return format Example Notes Return format Example WRG common command none WAI none none CMD gt output 10 WAI The operation complete flag is set when data is available WAI will then effect a delay until data is available none CMD gt output 10 RST CMD gt output 10 WAI CMD gt output 10 FNC WAT SET WIRING CONFIGURATION Class Return type Format Options Return format Ex

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