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Chapter 4 Operation

4-9

4_

4.4

Power Analysis Values

4.4.1

Total Harmonic Distortion Measurement

The total harmonic distortion (THD) is a measurement of the harmonic distortion and is defined as the ratio
between the power of the harmonic frequencies above the base frequency and the power of the base frequency.
The total harmonic distortions for current and voltage are calculated using the following formulas.

Total Harmonic

Distortion for Current

Total Harmonic
Distortion for Voltage

4.4.2

Demand Calculation Method

The power meter provides measured values for current demand, active power demand, reactive power
demand and apparent power demand. You can also calculate the last, present, predicted and peak demand
values from above measured values. The power meter supports fixed block interval demand methods. The
example shown below uses a 15-minute interval. You can select an interval from 1 to 60 minutes. The meter
updates the present, predicted and peak demand values every second, and updates the last demand value at
the end of the interval. The power meter treats last demand value as the present demand after updating.



Last demand: The power meter calculates the value when the last interval ends.



Present demand: The power meter calculates the value during the current interval.



Predicted demand: The power meter calculates the value before the current interval ends.



Peak demand: The power meter calculates the maximum value during the current interval.

15

30

45

60

Time (minutes)

Demand value is the average value that is calculated

when the last interval ends.

15-minute interval 15-minute interval 15-minute interval

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Summary of Contents for DPM-D520I

Page 1: ...EL 52 55 3603 9200 We reserve the right to change the information in this catalogue without prior notice EMEA Headquarters Delta Electronics Netherlands B V Sales Sales IA EMEA deltaww com Marketing M...

Page 2: ...Delta Din rail Power Meter DPM D520I User Manual Revision History Version Revision Date 1s t The first version was published 2020 8 13...

Page 3: ......

Page 4: ...Interface 2 4 2 4 Dimensions 2 4 Chapter 3 Installation 3 1 Installation 3 2 3 1 1 Installation Environment 3 2 3 1 2 Installation Notes 3 2 3 2 Basic Checks 3 3 3 3 Wiring 3 3 3 3 1 Wiring Diagrams 3...

Page 5: ...Values 4 9 4 4 1 Total Harmonic Distortion Measurement 4 9 4 4 2 Demand Calculation Method 4 9 Chapter 5 Parameters and Funcitons 5 1 Overview of Parameters 5 2 5 2 Modbus Protocol 5 79 5 2 1 Supporte...

Page 6: ...1 1 1 Chapter 1 Product Introduction Table of Contents 1 1 Preface 1 2 1 2 Overview 1 2 1 3 Safety Precautions 1 3 1...

Page 7: ...r corrosive and flammable gas Follow the instructions on the diagram in this manual for wiring the device Grounding must be performed correctly and properly according to provisions for related electri...

Page 8: ...n Notes Never short the secondary of a Power Transformer PT Never open circuit a Current Transformer CT Ensure that the CT secondary winding is fixed securely on the equipment It may damage the equipm...

Page 9: ...Delta Din rail Power Meter DPM D520I User Manual 1 4 _1 _1 MEMO...

Page 10: ...2 1 2 Chapter 2 Product Specifications Table of Contents 2 1 Electrical Characteristics 2 2 2 2 Communications Specifications 2 3 2 3 Operator Interface 2 4 2 4 Dimensions 2 4...

Page 11: ...3A Start Current 20mA Frequency 50 60 Hz Harmonic Distortion for Individual Current Voltage 31 Voltage Input Measuring Category CAT III Alarm Set up multi level alarms 29 multi level alarms Power Oper...

Page 12: ...n pulse light Red fault light Electromagnetic Compatibility Electrostatic Discharge IEC 61000 4 2 Immunity to Radiated Fields IEC 61000 4 3 Immunity to Fast Transients IEC 61000 4 4 Immunity to Impuls...

Page 13: ...Power Meter DPM D520I User Manual 2 4 _2 2 3 Operator Interface 2 4 Dimensions Front Side Unit mm inch Part Name A Measure current B Measure voltage C Setup Switch D RS 485 E Power light F Pulse light...

Page 14: ...ions 2 5 2_ FUNCTION PIN VOLTAGE CURRENT MEASURED VOLTAGE VA 20 V L N 400 V L N 35 V L L 690 V L L VB VC VN CONTROL POWER L1 80 265 VAC 100 300VDC 40 mA MAX L2 MEASURED CURRENT IA 3A 63A IA IB IB IC I...

Page 15: ...Delta Din rail Power Meter DPM D520I User Manual 2 6 _2 MEMO...

Page 16: ...Installation Table of Contents 3 1 Installation 3 2 3 1 1 Installation Environment 3 2 3 1 2 Installation Notes 3 2 3 2 Basic Checks 3 3 3 3 Wiring 3 3 3 3 1 Wiring Diagrams 3 3 3 3 2 Communication Ch...

Page 17: ...ensing Do not store the product in a place subjected to corrosive gases or liquids Place the product on a solid and durable surface Do not mount the product near heat radiating elements or in a locati...

Page 18: ...plied to the power meter Pre running Check supplied with power Check if the power indicator light is lit Check if communication between every device is normal If there is any abnormal response from th...

Page 19: ...l 3 4 _3 _3 Wiring Diagrams 3PH3W connection 3 CT No PT 3PH3W connection 2 CT No PT 3PH3W connection 3 CT 2 PT 3PH4W Y connection 3 CT No PT 3PH4W Y connection 3 CT 3 PT 3PH4W Y connection 2 CT 3 PT 3...

Page 20: ...ts the symbols used in the diagram Symbol Description Grounding Current transformer Terminal block Voltage transformer Fuse 1PH2W 1 CT 1PH3W 2 CT 1PH2W No CT 1PH3W No CT v IA IA IB IB IC IC V1 V2 V3 V...

Page 21: ...on Code 03 06 10 FE Stop Bits 1 2 Note The 7 bit data length is not available for the Modbus RTU protocol Use shielded twisted pair cables for RS485 communication When connecting multiple devices in s...

Page 22: ...formers Setting 4 4 4 2 4 Set up the System Parameters 4 5 4 2 5 Set up the Alarms 4 5 4 2 6 Set up the Demands 4 5 4 2 7 Set up the Resets 4 6 4 3 Advanced Setups 4 7 4 3 1 Auto Metering 4 7 4 3 2 Da...

Page 23: ...munication parameters are set to factory defaults Station 1 RTU 9600 8N1 When switching Setup Switch to USER the meter communication parameters are set to user setting values Note In case that users f...

Page 24: ...rom RTU factory default ASCII Corresponding Modbus address 0x17 Baud Rate Speed of communication transmission with the factory default of 9600 kbps Corresponding Modbus address 0x16 Parity Odd and eve...

Page 25: ...Use parameters in step 5 to connect the power meter 4 2 3 Transformers Setting Primary side current transformer CT1 Ampere for the primary side current transformer with a selectable range of 1 9999 A...

Page 26: ...g Modbus address 0X12 Number PT The number of PTs on the system options are 0 2 and 3 default Corresponding Modbus address 0X12 Note When the wiring is one phase two wire 1PH2W the fixed number of CT...

Page 27: ...s There are seven types of supported resets including Default Energy Demand Alarm MaxMin Data Log and ClearAll Default Restore all the settings back to the defaults Energy Clear all the accumulated an...

Page 28: ...set for the Interval it means the function is disabled default Corresponding Modbus address is 0x501 Example To record the Voltage L N and Current values write 1 the code for Voltage L N into the Mod...

Page 29: ...lti read for the measured values Example 1 You can use function code 0x06 single write or 0x10 multi write to read the average Voltage L N value Write the value 0x100 into Modbus 0x50C and the value 0...

Page 30: ...emand values from above measured values The power meter supports fixed block interval demand methods The example shown below uses a 15 minute interval You can select an interval from 1 to 60 minutes T...

Page 31: ...Delta Din rail Power Meter DPM D520I User Manual 4 10 _4 MEMO...

Page 32: ...rs and Functions Table of Contents 5 1 Overview of Parameters 5 2 5 2 Modbus Protocol 5 79 5 2 1 Supported Modbus Function Code 5 79 5 2 2 Modbus Communication Protocol 5 79 5 2 3 Packet Structure for...

Page 33: ...W 3 40004 Present time Hour 00 23 Minute 00 59 byte Hour Minute 2 R W 4 40005 Second 00 59 word Second 2 R W 5 40006 Meter Constant 3200 uint P kWh 2 R 6 40007 Meter Model 0 None 3 DPM D520I word 2 R...

Page 34: ...Primary CT A 1 9999 uint A 2 R W F 40016 Secondary CT A 0 1A 1 5A word A 2 R W 10 40017 Primary PT 1 65535 uint V 2 R W 11 40018 Secondary PT 1 9999 uint V 2 R W 12 40019 Transformer quantities 0 3CT...

Page 35: ...40024 Communication mode 0 ASCII 1 RTU word 2 R W 18 40025 Data bit 0 8 1 7 word bit 2 R W 19 40026 Stop bit 0 None 1 Even 2 Odd word 2 R W 1A 40027 Stop bit 0 1 1 2 word bit 2 R W 1B 40028 Modbus add...

Page 36: ...nable 0 Disable 1 Enable word 2 R W 20 40033 Pickup setpoint current value exceeding this value triggers alarm 0 000 99999 999 float A 4 R W 21 40034 22 40035 Pickup time delay alarm trigger delay 0 9...

Page 37: ...0046 Alarm enable 0 Disable 1 Enable word 2 R W 2E 40047 Pickup setpoint neutral current value exceeding this value triggers alarm 0 000 99999 999 float A 4 R W 2F 40048 30 40049 Pickup time delay ala...

Page 38: ...060 Alarm enable 0 Disable 1 Enable word 2 R W 3C 40061 Pickup setpoint line voltage value below this value triggers alarm 0 000 99999 999 float V 4 R W 3D 40062 3E 40063 Pickup time delay alarm trigg...

Page 39: ...L N 49 40074 Alarm enable 0 Disable 1 Enable word 2 R W 4A 40075 Pickup setpoint phase value below this value triggers alarm 0 000 99999 999 float V 4 R W 4B 40076 4C 40077 Pickup time delay alarm tr...

Page 40: ...2 R W Alarm Over Current Unbalance 57 40088 Alarm enable 0 Disable 1 Enable word 2 R W 58 40089 Pickup setpoint over current unbalance value below this value triggers alarm 0 00 99 99 float 4 R W 59...

Page 41: ...ut time delay alarm clear delay 0 99 word s 2 R W Over Reactive Power 65 40102 Alarm enable 0 Disable 1 Enable word 2 R W 66 40103 Pickup setpoint total reactive power value exceeding this value trigg...

Page 42: ...40115 Dropout time delay alarm clear delay 0 99 word s 2 R W Alarm Lead PF 73 40116 Alarm enable 0 Disable 1 Enable word 2 R W 74 40117 Pickup setpoint total power factor value below this value trigg...

Page 43: ...0 40129 Dropout time delay alarm clear delay 0 99 word s 2 R W Alarm Lead Displacement PF 81 40130 Alarm enable 0 Disable 1 Enable word 2 R W 82 40131 Pickup setpoint total displacement power factor v...

Page 44: ...his value clears alarm 0 00000 1 00000 float 4 R W 8D 40142 8E 40143 Dropout time delay alarm clear delay 0 99 word s 2 R W Alarm Over Current Demand 8F 40144 Alarm enable 0 Disable 1 Enable word 2 R...

Page 45: ...40155 Dropout setpoint active power demand value below this value clears alarm 0 000 99999 999 float kW 4 R W 9B 40156 9C 40157 Dropout time delay alarm clear delay 0 99 word s 2 R W Alarm Over React...

Page 46: ...emand value exceeding this value triggers alarm 0 000 99999 999 float kW 4 R W A6 40167 A7 40168 Pickup time delay alarm trigger delay 0 99 word s 2 R W A8 40169 Dropout setpoint apparent power demand...

Page 47: ...e delay alarm clear delay 0 99 word s 2 R W Alarm Under Frequency B2 40179 Alarm enable 0 Disable 1 Enable word 2 R W B3 40180 Pickup setpoint frequency value below this value triggers alarm 0 0000 99...

Page 48: ...ed 0 000 999 999 float 4 R W BE 40191 BF 40192 Dropout time delay alarm clear delay 0 99 word s 2 R W Alarm Over THD Current C0 40193 Alarm enable 0 Disable 1 Enable word 2 R W C1 40194 Pickup setpoin...

Page 49: ...value below this value alarm cleared 0 000 99999 999 float kW m2 4 R W D3 40212 D4 40213 Dropout time delay alarm clear delay 0 99 word s 2 R W Alarm Over EUI D5 40214 Alarm enable 0 Disable 1 Enable...

Page 50: ...999 999 float V 4 R 103 40260 104 40261 Phase C voltage 0 000 99999 999 float V 4 R 105 40262 106 40263 Average phase voltage 0 000 99999 999 float V 4 R 107 40264 108 40265 A B line voltage 0 000 999...

Page 51: ...283 B C line voltage unbalance 0 00 99 99 float 4 R 11B 40284 11C 40285 C A line voltage unbalance 0 00 99 99 float 4 R 11D 40286 11E 40287 Line voltage unbalance 0 00 99 99 float 4 R 11F 40288 120 40...

Page 52: ...ad float 4 R 135 40310 136 40311 Power factor of phase B 0 00000 1 00000 positive lag negative lead float 4 R 137 40312 138 40313 Power factor of phase C 0 00000 1 00000 positive lag negative lead flo...

Page 53: ...active power of phase C 0 000 99999 999 positive power consumption negative power generation float kW 4 R 14B 40332 14C 40333 Total instantaneous reactive power 0 000 99999 999 positive lag negative...

Page 54: ...active energy of three phase delivered 0 4294967295 UINT VARh 4 R 161 40354 162 40355 Reactive energy of three phase received 0 4294967295 UINT VARh 4 R 163 40356 164 40357 Apparent energy of three ph...

Page 55: ...hase received 0 4294967295 UINT VAh 4 R 171 40370 172 40371 Apparent energy of three phase delivered apparent energy of three phase received 0x80000001 0x7FFFFFFF 2 s complement INT VAh 4 R 173 40372...

Page 56: ...0 000 999 999 float 4 R 185 40390 186 40391 Total harmonic distortion for phase C A voltage 0 000 999 999 float 4 R 187 40392 188 40393 Total harmonic distortion for current 0 000 999 999 float 4 R 1...

Page 57: ...active power demand 0 000 99999 999 float kW 4 R 199 40410 19A 40411 Last three phase active power demand 0 000 99999 999 float kW 4 R 19B 40412 19C 40413 Predicted three phase active power demand 0 0...

Page 58: ...te of the three phase reactive power demand Year 00 99 Month 1 12 byte Year Month 2 R 1AD 40430 Date 1 31 word Date 2 R 1AE 40431 Time of the three phase reactive power demand Hour 00 23 Minute 00 59...

Page 59: ...F 40448 1C0 40449 Auto Date 1 positive active energy 0 000 99999 999 999 999 float kWh 4 R 1C1 40450 1C2 40451 Auto Date 1 reversed active energy 0 000 99999 999 999 999 float kWh 4 R 1C3 40452 1C4 40...

Page 60: ...Instantaneous fundamental active power of phase C 0 000 99999 999 float kW 4 R 1D7 40472 1D8 40473 Instantaneous total fundamental reactive power 0 000 99999 999 float kVAR 4 R 1D9 40474 1DA 40475 In...

Page 61: ...Date of maximum A B line voltage Year 00 99 Month 1 12 byte Year Month 2 R 203 40516 Date 1 31 word Date 2 R 204 40517 Time of maximum A B line voltage Hour 00 23 Minute 00 59 byte Hour Minute 2 R 20...

Page 62: ...phase A voltage Year 00 99 Month 1 12 byte Year Month 2 R 215 40534 Date 1 31 word Date 2 R 216 40535 Time of maximum phase A voltage Hour 00 23 Minute 00 59 byte Hour Minute 2 R 217 40536 Second 00 5...

Page 63: ...se A current Year 00 99 Month 1 12 byte Year Month 2 R 227 40552 Date 1 31 word Date 2 R 228 40553 Time of maximum phase A current Hour 00 23 Minute 00 59 byte Hour Minute 2 R 229 40554 Second 00 59 w...

Page 64: ...current Year 00 99 Month 1 12 byte Year Month 2 R 239 40570 Date 1 31 word Date 2 R 23A 40571 Time of maximum neutral line current Hour 00 23 Minute 00 59 byte Hour Minute 2 R 23B 40572 Second 00 59 w...

Page 65: ...ower Year 00 99 Month 1 12 byte Year Month 2 R 24B 40588 Date 1 31 word Date 2 R 24C 40589 Time of maximum total active power Hour 00 23 Minute 00 59 byte Hour Minute 2 R 24D 40590 Second 00 59 word S...

Page 66: ...r Month 2 R 25D 40606 Date 1 31 word Date 2 R 25E 40607 Time of maximum total harmonic distortion for A B line voltage Hour 00 23 Minute 00 59 byte Hour Minute 2 R 25F 40608 Second 00 59 word Second 2...

Page 67: ...voltage Year 00 99 Month 1 12 byte Year Month 2 R 26F 40624 Date 1 31 word Date 270 40625 Time of maximum total harmonic distortion for phase A voltage Hour 00 23 Minute 00 59 byte Hour Minute 2 R 27...

Page 68: ...ar 00 99 Month 1 12 byte Year Month 2 R 281 40642 Date 1 31 word Date 282 40643 Time of maximum total harmonic distortion for line voltage Hour 00 23 Minute 00 59 byte Hour Minute 2 R 283 40644 Second...

Page 69: ...B current Year 00 99 Month 1 12 byte Year Month 2 R 293 40660 Date 1 31 word Date 294 40661 Time of maximum total harmonic distortion for phase B current Hour 00 23 Minute 00 59 byte Hour Minute 2 R 2...

Page 70: ...otal harmonic distortion for A B line voltage unbalance Year 00 99 Month 1 12 byte Year Month 2 R 2A5 40678 Date 1 31 word Date 2A6 40679 Time of maximum total harmonic distortion for A B line voltage...

Page 71: ...C A line voltage unbalance Hour 00 23 Minute 00 59 byte Hour Minute 2 R 2B3 40692 Second 00 59 word Second 2B4 40693 Maximum total harmonic distortion for phase A voltage unbalance 0 00 99 99 float 4...

Page 72: ...onic distortion for phase C voltage unbalance Year 00 99 Month 1 12 byte Year Month 2 R 2C3 40708 Date 1 31 word Date 2C4 40709 Time of maximum total harmonic distortion for phase C voltage unbalance...

Page 73: ...40723 Maximum total harmonic distortion for phase A current unbalance 0 00 99 99 float 4 R 2D3 40724 2D4 40725 Date of maximum total harmonic distortion for phase A current unbalance Year 00 99 Month...

Page 74: ...40739 Time of maximum total harmonic distortion for phase C current unbalance Hour 00 23 Minute 00 59 byte Hour Minute 2 R 2E3 40740 Second 00 59 word Second 2E4 40741 Maximum total harmonic distorti...

Page 75: ...line voltage Year 00 99 Month 1 12 byte Year Month 2 R 309 40778 Date 1 31 word Date 2 R 30A 40779 Time of minimum B C line voltage Hour 00 23 Minute 00 59 byte Hour Minute 2 R 30B 40780 Second 00 59...

Page 76: ...ltage Year 00 99 Month 1 12 byte Year Month 2 R 31B 40796 Date 1 31 word Date 2 R 31C 40797 Time of minimum phase B voltage Hour 00 23 Minute 00 59 byte Hour Minute 2 R 31D 40798 Second 00 59 word Sec...

Page 77: ...B current Year 00 99 Month 1 12 byte Year Month 2 R 32D 40814 Date 1 31 word Date 2 R 32E 40815 Time of minimum phase B current Hour 00 23 Minute 00 59 byte Hour Minute 2 R 32F 40816 Second 00 59 word...

Page 78: ...alue Year 00 99 Month 1 12 byte Year Month 2 R 33F 40832 Date 1 31 word Date 2 R 340 40833 Time of minimum frequency value Hour 00 23 Minute 00 59 byte Hour Minute 2 R 341 40834 Second 00 59 word Seco...

Page 79: ...ar 00 99 Month 1 12 byte Year Month 2 R 351 40850 Date 1 31 word Date 2 R 352 40851 Time of minimum total reactive power Hour 00 23 Minute 00 59 byte Hour Minute 2 R 353 40852 Second 00 59 word Second...

Page 80: ...00 99 Month 1 12 byte Year Month 2 R 363 40868 Date 1 31 word Date 364 40869 Time of minimum total harmonic distortion for B C line voltage Hour 00 23 Minute 00 59 byte Hour Minute 2 R 365 40870 Secon...

Page 81: ...tage Year 00 99 Month 1 12 byte Year Month 2 R 375 40886 Date 1 31 word Date 376 40887 Time of minimum total harmonic distortion for phase B voltage Hour 00 23 Minute 00 59 byte Hour Minute 2 R 377 40...

Page 82: ...99 Month 1 12 byte Year Month 2 R 387 40904 Date 1 31 word Date 388 40905 Time of minimum total harmonic distortion for phase voltage Hour 00 23 Minute 00 59 byte Hour Minute 2 R 389 40906 Second 00...

Page 83: ...istortion for phase C current Year 00 99 Month 1 12 byte Year Month 2 R 399 40922 Date 1 31 word Date 39A 40923 Time of minimum total harmonic distortion for phase C current Hour 00 23 Minute 00 59 by...

Page 84: ...938 3AA 40939 Date of minimum total harmonic distortion for B C line voltage unbalance Year 00 99 Month 1 12 byte Year Month 2 R 3AB 40940 Date 1 31 word Date 3AC 40941 Time of minimum total harmonic...

Page 85: ...ond 00 59 word Second 3BA 40955 Minimum total harmonic distortion for phase B voltage unbalance 0 00 99 99 float 4 R 3BB 40956 3BC 40957 Date of minimum total harmonic distortion for phase B voltage u...

Page 86: ...Time of minimum total harmonic distortion for line voltage unbalance Hour 00 23 Minute 00 59 byte Hour Minute 2 R 3CB 40972 Second 00 59 word Second 3CC 40973 Minimum total harmonic distortion for pha...

Page 87: ...al harmonic distortion for phase B current unbalance Year 00 99 Month 1 12 byte Year Month 2 R 3DB 40988 Date 1 31 word Date 3DC 40989 Time of minimum total harmonic distortion for phase B current unb...

Page 88: ...r 00 23 Minute 00 59 byte Hour Minute 2 R 3E9 41002 Second 00 59 word Second 4 Alarm 0400 04FF 400 41025 Alarm status of over current 0 Cleared 1 Triggered word 2 R 401 41026 Alarm times of over curre...

Page 89: ...nt 1 255 word Times 2 R 40E 41039 Alarm date of over neutral current Year 00 99 Month 1 12 byte Year Month 2 R 40F 41040 Date 1 31 word Date 410 41041 Alarm time of over neutral current Hour 00 23 Min...

Page 90: ...3 Minute 00 59 byte Hour Minute 2 R 41D 41054 Second 00 59 word Second 41E 41055 Alarm status of over phase voltage 0 Cleared 1 Triggered word 2 R 41F 41056 Alarm times of over phase voltage 1 255 wor...

Page 91: ...255 word Times 2 R 42C 41069 Alarm date of over voltage unbalance Year 00 99 Month 1 12 byte Year Month 2 R 42D 41070 Date 1 31 word Date 42E 41071 Alarm time of over voltage unbalance Hour 00 23 Min...

Page 92: ...e 00 59 byte Hour Minute 2 R 43B 41084 Second 00 59 word Second 43C 41085 Alarm status of over reactive energy 0 Cleared 1 Triggered word 2 R 43D 41086 Alarm times of over reactive energy 1 255 word T...

Page 93: ...actor lead 1 255 word Times 2 R 44A 41099 Alarm date of power factor lead Year 00 99 Month 1 12 byte Year Month 2 R 44B 41100 Date 1 31 word Date 44C 41101 Alarm time of power factor lead Hour 00 23 M...

Page 94: ...ment power factor lead Hour 00 23 Minute 00 59 byte Hour Minute 2 R 459 41114 Second 00 59 word Second 45A 41115 Alarm status of displacement power factor lag 0 Cleared 1 Triggered word 2 R 45B 41116...

Page 95: ...Triggered word 2 R 467 41128 Alarm times of over active power demand 1 255 word Times 2 R 468 41129 Alarm date of over active power demand Year 00 99 Month 1 12 byte Year Month 2 R 469 41130 Date 1 31...

Page 96: ...demand Year 00 99 Month 1 12 byte Year Month 2 R 475 41142 Date 1 31 word Date 476 41143 Alarm time of over apparent power demand Hour 00 23 Minute 00 59 byte Hour Minute 2 R 477 41144 Second 00 59 w...

Page 97: ...us of total harmonic distortion for over voltage 0 Cleared 1 Triggered word 2 R 485 41158 Alarm times of total harmonic distortion for over voltage 1 255 word Times 2 R 486 41159 Alarm date of total h...

Page 98: ...1170 Alarm times of phase loss 1 255 word Times 2 R 492 41171 Alarm date of phase loss Year 00 99 Month 1 12 byte Year Month 2 R 493 41172 Date 1 31 word Date 2 R 494 41173 Alarm time of phase loss Ho...

Page 99: ...phase rotation Hour 00 23 Minute 00 59 byte Hour Minute 2 R 4A1 41186 Second 00 59 word Second 2 R 4A2 41187 Alarm status of over DUI 0 Cleared 1 Triggered word 2 R 4A3 41188 Alarm times of over DUI...

Page 100: ...ced Settings 0500 05FF 500 41281 Floor Area 1 65536 word m2 2 R W 501 41282 Data Log Minute 00 60 Second 00 59 0 Disable byte Minute Second 2 R W 502 41283 Auto Recording Energy 1 0 Disable 1 Enable w...

Page 101: ...Minute 00 59 byte Hour Minute 2 R 555 41366 Reset energy time Second 00 59 word Second 2 R 556 41367 Data log start date Year 00 99 Month 1 12 byte Year Month 2 R 557 41368 Date 1 31 word Date 2 R 558...

Page 102: ...otal harmonic distortion for voltage 17 Total harmonic distortion for current 55F 41376 Parameter 5 for data log 560 41377 Parameter 6 for data log 561 41378 Parameter 7 for data log 562 41379 Paramet...

Page 103: ...Hour 00 23 Minute 00 59 byte Hour Minute 2 R W 573 41399 Time of Use 3 stop time Hour 00 23 Minute 00 59 byte Hour Minute 2 R W 574 41401 Time of Use 4 start time Hour 00 23 Minute 00 59 byte Hour Mi...

Page 104: ...se 8 stop time Hour 00 23 Minute 00 59 byte Hour Minute 2 R W 6 Parameter Group 0600 06FF 600 41537 Read data from group 1 2 R 601 41538 Read data from group 2 645 41606 Read data from group 70 646 41...

Page 105: ...Year byte 3 Second Minute Hour byte 3 1 Phase voltage float 4 2 Line voltage float 4 3 Average current float 4 4 Neutral line current float 4 5 Power factor Positive lag Negative lead float 4 6 Displ...

Page 106: ...of 3 intervals R 0801 data log of 3 intervals R 0802 data log of 3 intervals R R R B6FF data log of 3 intervals R Alarm History use only function code 0xFE to read the following parameters Alarm types...

Page 107: ...1 17 Over Current Demand byte 1 18 Over kW Demand byte 1 19 Over kVAR Demand byte 1 20 Over kVA Demand byte 1 21 Over Frequency byte 1 22 Under Frequency byte 1 23 Over Voltage THD byte 1 24 Over Curr...

Page 108: ...2 R B8F5 Date 1 31 word Date 2 R B8F6 Alarm 01 Time Hour 00 23 Minute 00 59 byte Hour Minute 2 R B8F7 Second 00 59 word Second 2 R B8F8 Alarm 02 Date Year 00 99 Month 1 12 byte Year Month 2 R B8F9 Da...

Page 109: ...C0C1 Date 1 31 word Date 2 R C0C2 Alarm 500 Time Hour 00 23 Minute 00 59 byte Hour Minute 2 R C0C3 Second 00 59 word Second 2 R byte Year Month 2 R C0C0 Alarm 500 Date Year 00 99 Month 1 12 byte Year...

Page 110: ...I the maximum address to be gathered with a single Modbus block read is 60 for function code 0x03 and the maximum address is 59 for function code 0x10 Function code 0xFE is only supported when the pro...

Page 111: ...ch as PLCs or data collectors reads values of CT s primary current Register address 0x000E of the power meter Modbus Slave Slave address is 0x1 by using Modbus protocol which the register value would...

Page 112: ...s data log 2 31th harmonics and alarm log supported only when using Modbus RTU communication Similar to Modbus RTU mode Modbus master sends the Request message which contains Function code 0xFE asking...

Page 113: ...tors reads recorded data from the meter with function code 0xFE in Modbus address 0x800 the Request packet format sent by Modbus Master would be as follows Same as Modbus RTU but Number of Points must...

Page 114: ...igh byte Low byte 8 Selected parameter 2 4 Low word High byte Low byte High word High byte Low byte N Selected parameter N 4 Low word High byte Low byte High word High byte Low byte Example c Alarm hi...

Page 115: ...Code Start Address Hi Start Address Lo Number of Points Hi Number of Points Lo Master Request The following is packet format of Response sent by Modbus Slave The part before Byte Count is same as Modb...

Page 116: ...6 1 Chapter 6 Error Codes Table of Contents 6 1 Error Codes 6 2 6 2 Alarm Types 6 2 6...

Page 117: ...nt exceeds the setting value 2 Under Current The measured current is below the setting value 3 Over Neutral Current The measured neutral current exceeds the setting value 4 Over Voltage LL The measure...

Page 118: ...1 Over Frequency The measured frequency exceeds the setting value 22 Under Frequency The measured frequency is below the setting value 23 Over Voltage THD The total harmonic distortion for voltage exc...

Page 119: ...Delta Din rail Power Meter DPM D520I User Manual 6 4 _6 Memo...

Page 120: ...A 1 Appendix A Accessories Table of Contents A 1 DCT1000 Series A 2 A 2 DCT2000 Series A 4 12 A...

Page 121: ...Rated Burden VA External Dimension 1 mm Size of Opening 1 mm DCT S301C 1 0 100 A 5 A 1 5 90 x 40 x 111 21 x 32 DCT S211C 0 5 200 A 5 A 1 DCT S221C 0 5 300 A 5 A 1 5 DCT S231C 0 5 400 A 5 A 2 5 DCT S24...

Page 122: ...1C External Dimension 90 x 40 x 111 Size of Opening 21 x 32 DCT S211C DCT S221C DCT S231C DCT S241C External Dimension 116 5 x 52 x 147 Size of Opening 50 x 80 DCT S251C DCT S261C DCT S271C DCT S281C...

Page 123: ...ondary Current Rated Burden VA External Dimension 1 mm Size of Opening 1 mm DCT S201B 1 0 100 A 5 A 1 90 x 40 x 110 20 x 30 DCT S211B 0 5 200 A 5 A 1 DCT S221B 0 5 300 A 5 A 1 5 DCT S231B 0 5 400 A 5...

Page 124: ...Model Number Dimension mm DCT S201B External Dimension 90 x 40 x 110 Size of Opening 20 x 30 DCT S211B DCT S221B DCT S231B External Dimension 115 x 57 x 158 Size of Opening 50 x 80 DCT S241B DCT S251B...

Page 125: ...Delta Din rail Power Meter DPM D520I User Manual A 6 _A _1 _1 MEMO...

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