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D P M - C 5 0 1 L / C 5 0 2   O p e r a t i o n   M a n u a l  

4 - 1 0  

_4 

 

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

 

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

 

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

 

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

 

15

30

45

60

Tim e (minutes)

Demand value is the average value that is calculated 

when the last interval ends. 

15-minute interval

15-minute interval

15-minute interval

 

 
Sliding block interval demand method   

Take a fifteen-minute time interval (T) as the example shown below and set the (n) to 1 minute. The power 

meter displays the demand value for the last completed interval. The present, predicted and peak demand 

values are updated every (T+n) minutes, the last demand value is updated at the end of the interval and is 

treated as the present demand after update.   

 

Last demand: the power meter calculates the value when the last interval completes. After reaching T, it 

refreshes the last demand value every (T+n) minutes. 

 

 

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

 

Predicted demand: the power meter calculates the value before the current interval completes. After 

reaching T, it refreshes the predicted demand value every (T+n) minutes. 

 

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

T, it refreshes the peak demand value every (T+n) minutes. 

 

Time inte rval ( T)

Calculate th e demand va lue 
in the time interval ( T)

0

n

2n

3n

T

T+n

T+2n

T+3n

Time ( minute s)

 

Содержание DPM-C501L

Страница 1: ...ion in this manual without prior notice EMEA Headquarters Delta Electronics Netherlands B V Sales Sales IA EMEA deltaww com Marketing Marketing IA EMEA deltaww com Technical Support iatechnicalsupport...

Страница 2: ...DPM C501L C502 Operation Manual Revision History Version Revision Date 1s t The first version was published 2018 08 24 2n d Added DPM C502 product information 2019 05 25...

Страница 3: ...1 Menu Tree 2 5 2 4 Dimension 2 6 2 5 DI DO 2 8 Chapter 3 Installation 3 1 Installation 3 2 3 1 1 Installation Environment 3 2 3 1 2 Notes on Installation 3 2 3 2 Basic Checks 3 3 3 3 Wiring 3 4 3 3...

Страница 4: ...NFO 4 9 4 3 Power Analysis Values 4 9 4 3 1 Total Harmonic Distortion Measurement 4 9 4 3 2 Demand Calculation Method only available for DPM C502 4 9 4 4 Auto wiring only available for DPM C502 4 11 C...

Страница 5: ...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...

Страница 6: ...uctions on the diagram for wiring the device Grounding must be performed correctly and properly according to provisions from relatedregulations on electric work currently effective in the country Do n...

Страница 7: ...es on Operation DO NOT work alone Before performing visual inspections tests or maintenance on this equipment disconnect all sources of electric power Always use a properly rated voltage sensing devic...

Страница 8: ...line voltage 35 to 690V AC L L or phase voltage 20 to 400V AC L N Connect only one cord on one plug on the quick connector For wrongfully forced unplug recheck the connecting cord and restart Maintena...

Страница 9: ...Chapter 2 Product Specifications Table of Contents 2 1 Electrical Characteristics 2 2 2 2 Communications Specifications 2 3 2 3 Operating the Display 2 4 2 3 1 Menu Tree 2 5 2 4 Dimension 2 6 2 5 DI D...

Страница 10: ...distortion in average DPM C502 Individual voltage current harmonic distortion in average Voltage Input Measuring Category CAT III Alarm Set up multi level alarms 10 multi level alarms Maximum Minimum...

Страница 11: ...creen type LCD Backlight Blue LED 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 Im...

Страница 12: ...ey M Value G BACK Key Button Basic Mode Setting Mode INDEX Key Return to the previous screen Return to the previous screen BACK Key Go to setting mode or return to the previous screen Return to the pr...

Страница 13: ...u can always use this button to return to HOME PA S S HOME V L N V L L AMP P F V R V A R W A T T P O S W H W H V A R H V A H V A H V A R H T H D I T H D V Setting Menu Tree You can always use this but...

Страница 14: ...DPM C501L C502 Operation Manual 2 6 _2 2 4 Dimension Front Unit mm Back...

Страница 15: ...ent Rated voltage VA 20V L N 400V L N 35V L L 690V L L VB VC VN Control power L 80 265 VAC 100 300 VDC 400 mA MAX N Rated current I1 1A 5A I1 I2 I2 I3 I3 RS 485 D 7 12 VDC D Digital input DI_COM 3 DI_...

Страница 16: ...10 ms 10 ON OFF 15 ms 10 Electrical isolation Optical coupler Screw turning torque 8 0 kgf cm 0 8 N m Cable diameter 12 24 AWG Digital Output DO Connector type Removable Terminal Block Number of outp...

Страница 17: ...ect the neutral wire to the L2 Always use a fuse on L1 When using an ungrounded neutral wire to connect to the power use a fuse on L2 If you are using a Power Transformer PT or a Current Transformer C...

Страница 18: ...DPM C501L C502 Operation Manual 2 10 _2 MEMO...

Страница 19: ...ble of Contents 3 1 Installation 3 2 3 1 1 Installation Environment 3 2 3 1 2 Notes on Installation 3 2 3 2 Basic Checks 3 4 3 3 Wiring 3 4 3 3 1 Wiring Diagrams 3 4 3 3 2 DI DO Connection 3 6 3 3 3 C...

Страница 20: ...product in a place subjected to corrosive gases and liquids Correctly packaged and placed on a solid and durable surface Do not mount the product adjacent to heat radiating elements in a location sub...

Страница 21: ...ing and removing 2 Dimensions of the mounting hole is 92 mm 92 mm see the figure below 3 Slide the securing bracket into the slot and then push the meter in The maximum panel thickness should be withi...

Страница 22: ...e electromagnetic interference Check for correct voltage level for the power supplied to the power meter Pre running Check supplied with power Check whether power indicator light is lit Check whether...

Страница 23: ...ation 3 5 3_ Connection 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 1PH2W...

Страница 24: ...3 The following symbols are used in the diagram Symbol Description Grounding Current transformer Terminal block Voltage transformer Fuse 3 3 2 DI DO Connection 3 4 5 6 7 8 9 10 DI_COM DI_4 DI_3 DI_2 D...

Страница 25: ...one Odd Even Function Code 03 06 10 FE only available for DPM C502 Stop Bit 1 Use two wire cables for RS 485 communication The D communication terminal for all devices should be connected on the same...

Страница 26: ...DPM C501L C502 Operation Manual 3 8 _3 _3 MEMO...

Страница 27: ...4 Current Transformer Setup CT 4 4 4 2 5 Potential Transformer Setup PT 4 5 4 2 6 Reset RST 4 5 4 2 7 Digital Input DI 4 6 4 2 8 Relay Output RO 4 6 4 2 9 Edit Password PWD 4 9 4 2 10 Meter Informatio...

Страница 28: ...se B B phase C C and total power factor T Active power reactive power and apparent power page PQS values measured by the power meter including total active power P total reactive power Q total apparen...

Страница 29: ...s 2 3 till you complete the setting of the 4 digit password 5 After you complete the setting of the 4 digit password press ENTER key to go to the parameter setting page Note 1 if you need to edit the...

Страница 30: ...formers you need 5 Press NEXT key to confirm the setting and start to set the next setting the number of potential transformers PT 6 When the option starts blinking you can use UP and DOWN keys to sel...

Страница 31: ...ing you can use UP and DOWN keys to select the number of the secondary side potential transformer 6 Press NEXT key to confirm the setting and start to set the next number for the primary side potentia...

Страница 32: ...set the next digital input 4 When the option starts blinking you can use UP and DOWN keys to select ON or OFF 5 Press NEXT key to confirm the setting 6 Repeat steps 4 5 till you complete the settings...

Страница 33: ...age alarm is canceled the corresponding relay is open circuit Over phase voltage alarm If the over phase voltage alarm is triggered the corresponding relay is short circuit If the over phase voltage a...

Страница 34: ...ircuit Digital input 1 If the digital input 1 receives a higher potential the corresponding relay is short circuit If the digital input 1 receives a lower potential the corresponding relay is open cir...

Страница 35: ...d 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 voltage are calculated using the fo...

Страница 36: ...the demand value for the last completed interval The present predicted and peak demand values are updated every T n minutes the last demand value is updated at the end of the interval and is treated...

Страница 37: ...502 This is a future function for DPM C502 It will be available when the DPMSoft V1 26 8 is ready When the CT polarity negative and positive is incorrectly wired DPM C502 treats the wiring as a correc...

Страница 38: ...5 1 5 Chapter 5 Parameters and Functions Table of Contents 5 1 Advanced Features 5 2 5 2 Overview of Parameters 5 2...

Страница 39: ...eature up to 4 groups can be set Refer to parameters below for more details 5 2 Overview of Parameters MODBUS Address Item Range Data Type Unit Data Size byte Read R Write W Hex Modicom Format 0 Syste...

Страница 40: ...wer system configuration 0 3 4W 1 3 3W 2 1 2W 3 1 3W word 2 R W E 40015 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 65534 uint V 2 R W 11 40018...

Страница 41: ...e 1 Even 2 Odd word 2 R W 1A 40027 Stop bit 0 1 word bit 2 R W 1B 40028 Modbus address 1 254 word 2 R W 1C 40029 Reset 0 None 1 Reset to factory default 2 Reset value of energy 3 Reset the demand valu...

Страница 42: ...value alarm cleared 0 000 99999 999 float A 4 R W 24 40037 Alarm Over Voltage L L 34 40053 Alarm Enable 0 Disable 1 Enable word 2 R W 35 40054 Pickup setpoint line voltage value exceeding this value...

Страница 43: ...his value alarm triggered 0 000 99999 999 float V 4 R W 44 40069 45 40070 Reserved 46 40071 Dropout setpoint phase voltage value below this value alarm cleared 0 000 99999 999 float V 4 R W 47 40072 4...

Страница 44: ...100 64 40101 Reserved 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 alarm triggered 0 000 99999 999 f...

Страница 45: ...this value alarm triggered 0 0000 99 9999 float Hz 4 R W AD 40174 AE 40175 Reserved AF 40176 Dropout setpoint frequency value below this value alarm cleared 0 0000 99 9999 float Hz 4 R W B0 40177 B1 4...

Страница 46: ...oltage 0 000 99999 999 float V 4 R 107 40264 108 40265 A B line voltage 0 000 99999 999 float V 4 R 109 40266 10A 40267 B C line voltage 0 000 99999 999 float V 4 R 10B 40268 10C 40269 C A line voltag...

Страница 47: ...e voltage unbalance 0 00 99 99 float 4 R 11F 40288 120 40289 Phase A current 0 000 99999 999 float A 4 R 121 40290 122 40291 Phase B current 0 000 99999 999 float A 4 R 123 40292 124 40293 Phase C cur...

Страница 48: ...factor of phase C 1 00000 1 00000 positive lag negative lead float 4 R 139 40314 13A 40315 Total displacement power factor 1 00000 1 00000 positive lag negative lead float 4 R 13B 40316 13C 40317 Tota...

Страница 49: ...kVAR 4 R 14F 40336 150 40337 Instantaneous reactive power of phase B 0 000 99999 999 float kVAR 4 R 151 40338 152 40339 Instantaneous reactive power of phase C 0 000 99999 999 float kVAR 4 R 153 40340...

Страница 50: ...of three phase received Positive integer 0x00000000 0xFFFFFFFF uint VAh 4 R 167 40360 174 40373 Total harmonic distortion for phase A current 0 000 999 999 float 4 R 175 40374 176 40375 Total harmonic...

Страница 51: ...95 Total harmonic distortion for voltage 0 000 999 999 float 4 R 18B 40396 2 Maximum 0200 02FF 200 40513 Maximum A B line voltage 0 000 99999 999 float V 4 R 201 40514 202 40515 Date of maximum A B li...

Страница 52: ...59 byte Hour Minute 2 R 211 40530 Second 00 59 word Second 2 R 212 40531 Maximum phase A voltage 0 000 99999 999 float V 4 R 213 40532 214 40533 Date of maximum phase A voltage Year 00 99 Month 1 12...

Страница 53: ...ord Second 2 R 224 40549 Maximum phase A current 0 000 99999 999 float A 4 R 225 40550 226 40551 Date of maximum phase A current Year 00 99 Month 1 12 byte Year Month 2 R 227 40552 Date 1 31 word Date...

Страница 54: ...al line current 0 000 99999 999 float A 4 R 237 40568 238 40569 Date of maximum neutral line 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 maxim...

Страница 55: ...40587 Date of maximum total active power 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 Minu...

Страница 56: ...Date of minimum A B line voltage Year 00 99 Month 1 12 byte Year Month 2 R 303 40772 Date 1 31 word Date 2 R 304 40773 Time of minimum A B line voltage Hour 00 23 Minute 00 59 byte Hour Minute 2 R 30...

Страница 57: ...A voltage Year 00 99 Month 1 12 byte Year Month 2 R 315 40790 Date 1 31 word Date 2 R 316 40791 Time of minimum phase A voltage Hour 00 23 Minute 00 59 byte Hour Minute 2 R 317 40792 Second 00 59 word...

Страница 58: ...byte Year Month 2 R 327 40808 Date 1 31 word Date 2 R 328 40809 Time of minimum phase A current Hour 00 23 Minute 00 59 byte Hour Minute 2 R 329 40810 Second 00 59 word Second 2 R 32A 40811 Minimum ph...

Страница 59: ...Date 2 R 33A 40827 Time of minimum neutral line current Hour 00 23 Minute 00 59 byte Hour Minute 2 R 33B 40828 Second 00 59 word Second 2 R 33C 40829 Minimum frequency value 0 0000 99 9999 float Hz 4...

Страница 60: ...al active power Hour 00 23 Minute 00 59 byte Hour Minute 2 R 34D 40846 Second 00 59 word Second 2 R 34E 40847 Minimum total reactive power 0 000 99999 999 float kVAR 4 R 34F 40848 350 40849 Date of mi...

Страница 61: ...8 Date 1 31 word Date 2 R 404 41029 Alarm time of over current Hour 00 23 Minute 00 59 byte Hour Minute 2 R 405 41030 Second 00 59 word Second 2 R 412 41043 Alarm status of over line voltage 0 Cleared...

Страница 62: ...e 0 Cleared 1 Triggered word 2 R 41F 41056 Alarm times of over phase voltage 1 255 word times 2 R 420 41057 Alarm date of over phase voltage Year 00 99 Month 1 12 byte Year Month 2 R 421 41058 Date 1...

Страница 63: ...word Date 2 R 43A 41083 Alarm time of over active energy Hour 00 23 Minute 00 59 byte Hour Minute 2 R 43B 41084 Second 00 59 word Second 2 R 43C 41085 Alarm status of over reactive energy 0 Cleared 1...

Страница 64: ...word 2 R 479 41146 Alarm times of power factor lead 1 255 word times 2 R 47A 41147 Alarm date of power factor lead Year 00 99 Month 1 12 byte Year Month 2 R 47B 41148 Date 1 31 word Date 2 R 47C 4114...

Страница 65: ...2 R 553 41364 Reset energy date Date 1 31 word Date 2 R 554 41365 Reset energy time Hour 00 23 Minute 00 59 byte Hour Minute 2 R 555 41366 Reset energy time Second 00 59 word Second 2 R 556 41367 Dat...

Страница 66: ...Reversed reactive energy 14 Positive apparent energy 15 Reversed apparent energy 16 Total harmonic distortion of a voltage 17 Total harmonic distortion of a current word 2 R W 55C 41373 Setting for d...

Страница 67: ...9 byte Hour Minute 2 R W 574 41397 Time of Use 3 Available for C502 only 0 Sharp P1 1 Peak P2 2 Shoulder P3 3 Off peak P4 word 2 R W 575 41398 Time of Use 3 start time Available for C502 only Hour 00...

Страница 68: ...2 0 Disable 1 Enable word 2 R W 58A 41419 Setting of digital input 3 0 Disable 1 Enable word 2 R W 58B 41420 Setting of digital input 4 0 Disable 1 Enable word 2 R W 58C 41421 Setting of relay output...

Страница 69: ...ster 0x594 is writable when set for Relay Output 2 register 0x595 is writable word 2 R W 590 41425 Status of digital input 1 0 Low 1 High 255 Disable word 2 R 591 41426 Status of digital input 2 0 Low...

Страница 70: ...ics 0700 07FF Available for C502 only 700 41793 The 1st harmonic of average voltage 0 000 999 999 Float 2 R 701 41794 702 41795 The 2nd harmonic of average voltage 0 000 999 999 Float 2 R 703 41796 0...

Страница 71: ...DPM C501L C502 Operation Manual 5 34 _5 MEMO...

Страница 72: ...6 1 Chapter 6 Error Codes Table of Contents 6 1 Table of Error Codes 6 2 6...

Страница 73: ...You can refer to the following table of error codes to see the causes of the errors Error Code Name Description 0x01 Illegal function Incorrect function code 0x02 Illegal data address Incorrect data...

Страница 74: ...A 1 Appendix A Accessories Table of Contents A 1 DCT1000 Series A 2 A 2 DCT2000 Series A 4 12 A...

Страница 75: ...External Dimension 1 mm Size of Opening 1 mm DCT S301C 1 0 100A 5A 1 5 90 40 111 21 32 DCT S211C 0 5 200A 5A 1 DCT S221C 0 5 300A 5A 1 5 DCT S231C 0 5 400A 5A 2 5 DCT S241C 0 5 500A 5A 2 5 116 5 52 14...

Страница 76: ...m DCT S301C External Dimension 90 40 111 Size of Opening 21 32 DCT S211C DCT S221C DCT S231C DCT S241C External Dimension 116 5 52 147 Size of Opening 50 80 DCT S251C DCT S261C DCT S271C DCT S281C Ext...

Страница 77: ...Secondary Current Rated Burden VA External Dimension 1 mm Size of Opening 1 mm DCT S201B 1 0 100A 5A 1 90 40 110 20 30 DCT S211B 0 5 200A 5A 1 DCT S221B 0 5 300A 5A 1 5 DCT S231B 0 5 400A 5A 1 5 115...

Страница 78: ...5 A_ Model Number Dimension mm DCT S201B External Dimension 90 40 110 Size of Opening 20 30 DCT S211B DCT S221B DCT S231B External Dimension 115 57 158 Size of Opening 50 80 DCT S241B DCT S251B DCT S...

Страница 79: ...DPM C501L C502 Operation Manual A 6 _A _1 MEMO...

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