AccuEnergy EV300 Series User Manual
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AccuEnergy EV300 Series User Manual

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EV/DV300 Series Power Meter
Chapter 1: Introduction
[Cover page]
V:2.0 Revised October 2018
1

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Summary of Contents for AccuEnergy EV300 Series

  • Page 1 EV/DV300 Series Power Meter Chapter 1: Introduction [Cover page] V:2.0 Revised October 2018...
  • Page 2 The information contained in this document is believed be accurate at the time of publication, however, Accuenergy assumes no responsibility for any errors which may appear here and reserves the right to make changes without notice. Please ask the local representative for latest product specifications before ordering.
  • Page 3 EV/DV300 Series Power Meter Chapter 1: Introduction Please read this manual carefully before doing installation, operation and maintenance of the meter. Following symbols are used in this manual and on meter to alert the dangerous or prompt in the operating or setting process. Danger symbol, failure to observe the information may result in injury or death.

  • Page 4: Table Of Contents

    EV/DV300 Series Power Meter Chapter 1: Introduction CONTENTS Chapter 1: Introduction ....................6 1.1 Description of EV/DV300 ..................6 1.2 Application Area ...................... 7 1.3 EV/DV 300 Series ....................7 Chapter 2 Installation ....................10 2.1 Appearance and Dimensions ................10 2.1.1 Appearance ....................
  • Page 5 EV/DV300 Series Power Meter Chapter 1: Introduction EV/DV300 Series Power Meter Chapter 1: Introduction 1.1 Description of EV/DV300 1.2 Application Area 1.3 Meter Overview V:2.0 Revised October 2018...

  • Page 6: Chapter 1: Introduction

    EV/DV300 Series Power Meter Chapter 1: Introduction Chapter 1: Introduction 1.1 Description of EV/DV300 Powerful and Economical EV/DV300 series power meter is designed for three phase electrical parameter measurement by using of latest microprocessor and digital signal process technology. It can True-RMS measure Voltage, Current, Power, Reactive Power, Power Factor, Frequency and Energy.

  • Page 7: Application Area

    EV/DV300 Series Power Meter Chapter 1: Introduction 1.2 Application Area EV/DV 300 series meter can be used to replace analog meter, panel meter, transducer and small RTU in power distribution or power automation system. As it adopted true-RMS measuring method, the EV/DV 300 series are competent for meauring voltage and current in high distortion nonlinear load system, such as VVVF, Electric Ballast, Computer etc.
  • Page 8 EV/DV300 Series Power Meter Chapter 1: Introduction Table 1.1 EV300 Series Power Meter Item EV361 EV362 EV382 EV384 EV387 EV390 Voltage       Current       Power     ...
  • Page 9 EV/DV300 Series Power Meter Chapter 1: Introduction EV/DV300 Series Power Meter Chapter 2: Installation 2.1 Appearance and Dimensions 2.2 Installation Steps 2.3 Wiring 2.4 I/O Wiring Method V:2.0 Revised October 2018...

  • Page 10: Chapter 2 Installation

    EV/DV300 Series Power Meter Chapter 2: Installation Chapter 2: Installation 2.1 Appearance and Dimensions 2.1.1 Appearance Table 2.1 Part Name of Meter Part Name Description Meter house is made of high Strength 1. House inflaming retarding glass-Polymer 2. Front Panel Front Part of the meter 3.

  • Page 11: Dimension (Mm)

    EV/DV300 Series Power Meter Chapter 2: Installation 2.1.2 Dimension (mm) 2.2 Installation Before installation, please make sure that the environment should satisfy the following conditions. 1. Temperature EV/DV300 meter’s working temperature range are from -20℃ to 70℃. If the meter is used beyond this range, it will result in unnormal performance or even permanent damage of the meter.

  • Page 12: Installation Steps

    EV/DV300 Series Power Meter Chapter 2: Installation 3. Position EV/DV meter should be installed in dry and dust free environment and avoid heat, radiation and high electrical noise source. Installation Steps 1. Panel Cutting 2. Secondly, remove the clips from the meter and insert the meter into the square hole from the front side.

  • Page 13: Wiring

    EV/DV300 Series Power Meter Chapter 2: Installation 3. Finally, put clips back to the meter from the backside and push the clips tightly so that the meter is fixed on the panel. 2.3 Wiring Terminal Strips There are 3 groups of terminals on the back of the meter, top, middle and lower one. The top group is for current input and 2 DIs.

  • Page 14: Safety Earth Connection

    EV/DV300 Series Power Meter Chapter 2: Installation Safety Earth Connection Before doing the meter wiring connection, please make sure that the switch Panel has a safety Earth DANGER system. Connect the meter safety earth terminal to the switch gear safety earth system. Only the qualified personnel The following safety earth symbol is used in the could do the wire connection...

  • Page 15: Voltage Input

    EV/DV300 Series Power Meter Chapter 2: Installation The wire number of voltage input could be AWG16~22 or 0.6~1.5mm2. A fuse or circuit breaker should be used in Aux. power supply circuit. Fuse could be selected Long Time Delay 1A/250Vac one. No. 3 terminal must be connected to the safety earth system of switch gear. An isolated transformer or EMI filter should be used in the auxiliary power supply loop if there is power quality problem in the power supply.

  • Page 16: Current Input

    EV/DV300 Series Power Meter Chapter 2: Installation A fuse (1A) or circuit breaker should be used in voltage input circuit. The wire number of voltage input could be AWG16~22 or 0.6~1.5mm2 Note: The secondary of PT cannot be shorted, otherwise it may cause the severe damage of the instrument.
  • Page 17 EV/DV300 Series Power Meter Chapter 2: Installation 1. Wye mode, 3CT 2. Star mode, 2CT (Wiring mode set 0) (Wiring mode set 0) 3. Delta mode 4. Star mode (Wiring mode set 2) (Wiring mode set 1) V:2.0 Revised October 2018...

  • Page 18: I/O Wiring Method

    (or 1PO) and a RS485 communication port. Digital Input There are 2 digital inputs in the EV300 series meter (can be extended to 6 digital input) can be used as monitoring switch status and other digital input. DI1, COM1 (17, 18), DI2, COM2(19,20), DI3, COM3 (21, 23), DI4, COM3 (22, 23), DI5, COM4 (24, 26), DI6, COM4 (25, 26) are the terminal name and number.
  • Page 19 EV/DV300 Series Power Meter Chapter 2: Installation The voltage of the power supply connected with switch K is 16~30Vdc. The DI voltage can be higher for purpose of anti-noise if the loop is too long, but the Max current should be less than 10mA.
  • Page 20 EV/DV300 Series Power Meter Chapter 2: Installation Digital outputs work in an open collector mode with electric coupling, The simplified circuit is shown as Fig 2.18. Analog Output There are two optional analog output in EV/DV300 series meter used in DCS or industry monitoring system.
  • Page 21 Max current 20mA 24Vdc Power Supply There is an 24Vdc power supply in IO extend of EV300 series. The terminal name and number is AO2+, AO2- (33, 34), corresponding with (24V+, 24G). The voltage output range is 24V (±10%), power rating is 2W and isolate voltage is 1000Vdc.
  • Page 22 EV/DV300 Series Power Meter Chapter 2: Installation The setting of alarm is as following: 1. Set the relay output mode as alarm. RO=2 2. The serial number of I1 is 7 from Table 2.2. 3. CT1=200, the equation converting between real value and register value is: Real value = (value in register×CT1÷5 )÷1000 4.
  • Page 23 EV/DV300 Series Power Meter Chapter 2: Installation EV/DV300 Series Power Meter Chapter 3: Operation and Setting 3.1 Display Panel and Keys 3.2 Metering Data Reading 3.3 Meter Parameter Setting V:2.0 Revised October 2018...

  • Page 24: Chapter 3: Operation And Setting

    EV/DV300 Series Power Meter Chapter 3: Operation and Setting Chapter 3: Operation and Setting 3.1 Display Panel and Keys There are one LCD display panel and four operation keys in the front of EV/DV300. All the segments in LCD display panel are display in Fig 3.1. V:2.0 Revised October 2018...

  • Page 25: Metering Data Reading

    EV/DV300 Series Power Meter Chapter 3: Operation and Setting Table 3.1 Some symbols on LCD panel Display Meaning Description Display metering data Data display V, I, P, PF, F, kWh etc. Load Nature Inductive or capacitive load No icon display: No communication data Icons of One display: Receiving data...
  • Page 26 EV/DV300 Series Power Meter Chapter 3: Operation and Setting Press V/A to read voltage and current in the metering data area. The first screen: display U1, U2, U3 and Uavg as in Fig 3.2. U1=100.3V; U2=100.1V; U3=100.2V; communication state normal; DI1, DI2, DI3 and DI4 open;...
  • Page 27 EV/DV300 Series Power Meter Chapter 3: Operation and Setting The forth screen: display average phase voltage, line voltage and current of 3 phase, Uavg, Ulavg, and Iavg. As in Fig 3.5: Uavg=100.2V, Iavg=2.496A, Ulavg=173.2V; communication status normal; DI1, DI2, DI3 and DI4 open;...
  • Page 28 EV/DV300 Series Power Meter Chapter 3: Operation and Setting Press E key: display real energy and reactive energy in metering area. The first screen: display real energy. As in Fig 3.8: Ep=38106.1kWh. Max energy counter is 99999999.9kWh, it will go to 0 if the counter is over that value.

  • Page 29: Meter Parameter Setting

    EV/DV300 Series Power Meter Chapter 3: Operation and Setting 3.3 Meter Parameter Setting Under the data display mode, press and V/A keys simultaneously, get into the meter parameter setting mode. NOTE In the meter parameter setting mode, press key to move cursor. Right move one digit The setting should be done by each time.
  • Page 30 EV/DV300 Series Power Meter Chapter 3: Operation and Setting Access code is needed for going into the parameter setting mode. Only the person who knows the access code can do the parameter setting. The access code is 4 digits decimal number. It is from 0000 to 9999.
  • Page 31 EV/DV300 Series Power Meter Chapter 3: Operation and Setting The third screen: PT primary rating voltage PT1 setting page. PT1 value is an integer from 100 to 500,000. The unit is volt. As in Fig 3.14, PT1=1000V. Use key for moving cursor, E key for increasing and P key for decreasing.
  • Page 32 EV/DV300 Series Power Meter Chapter 3: Operation and Setting The sixth screen: CT secondary setting page. The default value of CT2 is 5A. 1A input is for option. As in Fig 3.17, CT2=5. Press V/A key, go to the next setting page. The seventh screen: wiring setting page.
  • Page 33 EV/DV300 Series Power Meter Chapter 3: Operation and Setting When setting the relay output working as alarm output, the value should be set as 2. Press V/A key, go to the next page. The ninth screen: Analog output 1 (AO1) setting (this setting will be inoperative if PO is selected).
  • Page 34 EV/DV300 Series Power Meter Chapter 3: Operation and Setting V:2.0 Revised October 2018...
  • Page 35 EV/DV300 Series Power Meter Chapter 3: Operation and Setting The eleventh screen: real energy presetting page. Use , E and P key to preset the value of energy. As in Fig 3.25, the energy value is 8848.3kWh. Press V/A to acknowledge and go to the next setting page.
  • Page 36 EV/DV300 Series Power Meter Chapter 3: Operation and Setting The fourteenth screen: access code setting page. This is the last setting page. The access code is set in this page. As in Fig 3.28, the access code is 0001. Press V/A key, go back to the first page.
  • Page 37 EV/DV300 Series Power Meter EV/DV300 Series Power Meter Chapter 4: Communications 4.1 Introducing Modbus Protocol 4.2 Format of Communication 4.5 Data Address Table V:2.0 Revised October 2018...

  • Page 38: Chapter 4: Communications

    Chapter 4: Communications 4.1 Modbus Protocol Introduction The Modbus RTU protocol is used for communication in EV300 series meter. The data format and error check field are defined in Modbus protocol. The half-duplex query and respond mode is adopted in Modbus protocol. There is only one master device in the communication net.
  • Page 39 EV/DV300 Series Power Meter 2.3 Function code The function code field of a message frame contains eight bits. Valid codes are in the range of 1-255 decimal. When a message is sent from a master to a slave device the function code tells the slave what kind of action to perform.

  • Page 40: Format Of Communication

    EV/DV300 Series Power Meter The receiving device recalculates a CRC during receipt of the message, and compares the calculated value to the actual value it received in the CRC field. If the two values are not equal, an error results. The CRC is started by first pre-loading a 16-bit register to all 1’s.
  • Page 41 EV/DV300 Series Power Meter 1. Read Status of Relay (function code 01) Query Query message is sent from master to slave device. This function code is used to read status of Relay Output in slave device. (1=ON,0=OFF), There are 2 relays in the meter. The address of each relay is Relay1=0000H and Relay2=0001H.
  • Page 42 EV/DV300 Series Power Meter 2 Read status of Digital Input (function code 02) Query This function is used to read the status of DI ON/OFF (1=ON, 0=OFF). The frame message contains slave device address, function field, quantity of data characters, data characters and error checking.
  • Page 43 EV/DV300 Series Power Meter 3. Read Data (function code 03) Query This function code is used to read the metering data in meter. Table 4.8 Example of reading 3 metering data U1, U2 and U3. The register address is, U1: 0110H, U2: 011H and U3: 0112H.
  • Page 44 EV/DV300 Series Power Meter Table 4.10 Control Relay query message DO addr DO addr CRC16 CRC16 Addr Value hi Value lo Response The normal response to the request is to retransmit back the message received after the Relay status has been altered. Table 4.11 Response of control Relay query DO addr DO addr...
  • Page 45 EV/DV300 Series Power Meter Table 4.12 Preset multi-register Data start Data start Data #of Data #of Byte count Addr reg hi reg lo regs hi regs lo CRC16 CRC16 Value hi Value lo Value hi Value lo Response The response message includes address of slave device, function code, data start register, data number and error checking.

  • Page 46: Data Address Table

    EV/DV300 Series Power Meter 4.3 Data Address Table Basic metering data All the measuring data in this register area are stored in this register area and are read by using function code 03. Table 4.14 Metering data address table Object Address Parameter Range...
  • Page 47 EV/DV300 Series Power Meter The relation between real value (Val_r) and communication value (Val_c) Table 4.15 The relation between real value and communication value Parameter Relation Unit U1, U2, U3, Uavg U12 U23, Val_r= Val_cX (PT1 / PT2) /10 Volt U31, Ulavg I1, I2, I3, Iavg, In Val_r = Val_c X(CT1/5) /1000...
  • Page 48 EV/DV300 Series Power Meter Alarm data Alarm related parameter and data store in this area. Function code 03 and 16 are used to read and write data respectively. Table 4.17 Alarm parameter and data Address Parameters Access Range Data Type Wiring mode 0~3 phase 4 wire,1~3 phase 3 Integer...
  • Page 49 EV/DV300 Series Power Meter Table 4.19 Relay output address table Address Parameters Range Data Type Access 0000H Relay 1 1 = ON, 0 = OFF 0001H Relay 2 1 = ON, 0 = OFF Note: 1. Object type: Bit-binary bit, Word-unsigned integer of 16 bit, Integer-Sign integer of 16 bit, Dwordunsigned integer of 32 bit 2.
  • Page 50 EV/DV300 Series Power Meter EV/DV300 Series Power Meter Appendix Appendix A Technical Data and Specifications Appendix B Ordering Information V:2.0 Revised October 2018...

  • Page 51: Appendix

    EV/DV300 Series Power Meter Appendix Appendix Appendix A Technical Data and Specification Input ratings Voltage Input Voltage rating -100V 100Vac nominal F.S.input,Vln with 20% overrange 100Vac nominal F.S.input,Vll with 20% overrange -400V 400Vac nominal F.S.input, Vln with 20% overrange 400Vac nominal F.S.input,Vll with 20% overrange Frequency range 45~65Hz...
  • Page 52 EV/DV300 Series Power Meter Appendix Accuracy Parameters Accuracy Resolution Voltage 0.5% 0.1% Current 0.5% 0.02% Power 1.0% 0.1% Reactive Power 1.0% 0.1% Apparent Power 1.0% 0.1% Power Factor 1.0% 0.1% Frequency 0.5% 0.01Hz Energy 1.0% 0.1kWh Reactive Energy 1.0% 0.1kvarh Drift with temp.
  • Page 53 EV/DV300 Series Power Meter Appendix Analog output (AO) Output Range 4~20mA or 0~1mA or 0~5V Resolution 12bit 4~20mA Max load resistance: 500Ω Max Load 0~1mA Max load resistance: 10kΩ 0~5V Max load current: 20mA 24Vdc power supply (PO) Voltage Output range 24V(±10%) Power Rating Isolate Voltage...

  • Page 54: Appendix B Ordering Information

    EV/DV300 Series Power Meter Appendix Appendix B Ordering Information V:2.0 Revised October 2018...
  • Page 55 EV/DV300 Series Power Meter Appendix V:2.0 Revised October 2018...

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