ICP DAS USA PM-3133-MTCP User Manual
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ICP DAS USA PM-3133-MTCP User Manual

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PM-3133 User's Manual v1.09
Last Revised: Jun. 2021
Page: 1
 E-mail: service@icpdas.com
Copyright © ICP DAS Co., Ltd. All Rights Reserved.
www.icpdas.com

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  • Page 1 PM-3133 User’s Manual v1.09 Last Revised: Jun. 2021 Page: 1  E-mail: service@icpdas.com Copyright © ICP DAS Co., Ltd. All Rights Reserved. www.icpdas.com...

  • Page 2: Table Of Contents

    Chapter 1 Introduction ........4 Connection ...... 14 1.1. PM-3133 introduction ..4 Wiring ......16 1.2. Caution ......5 Relay ....... 18 1.2.1. Danger ......5 LED Indicator ....18 1.3. Warning ......5 Chapter 6 Modbus-RTU communication ..19 6.1.1 SW1－SW6 setting ..
  • Page 3 CANopen Protocol ..38 8.2.3.2 Error Control Protocol ..52 8.2.1 SDO Introduction .... 38 8.2.4 Special Functions for PM-3133-CPS ....53 8.2.1.1 Upload SDO Protocol ..38 8.2.4.1 Power Meter Data Table .. 53 8.2.1.2 Download SDO Protocol . 40 Object Dictionary of 8.2.1.3 Abort SDO Transfer Protocol...

  • Page 4: Chapter 1 Introduction

    Chapter 1 Introduction 1.1. PM-3133 introduction ICP DAS offers PM-3133 family in a full range of Single-phase and Three-phase smart power meters for power monitoring. The products offer a rich feature set combined with easy-to-integrate communications. With its high accuracy (<0.5%, PF=1), the PM-3133 series products can be applied both on low voltage primary side and/or medium/high voltage secondary side and enable the users to obtain in real time the reliable and accurate energy consumption readings from the monitored equipments while in operation.

  • Page 5: Caution

    1.2. Caution 1.2.1. Danger The meter contains hazardous voltages, and should never be disassembled. Failing to follow this practice will result in serious injury or death. Any work on or near energized meters, meter sockets, or other metering equipment could induce a danger of electrical shock.

  • Page 6: Limitation Of Warranty

    1.4.1. Limitation of Warranty This warranty does not apply to defects resulting from unauthorized modification, misuse, or use for reason other than electrical power monitoring. The supplied meter is not a user-serviceable product. PM-3133 User’s Manual v1.09 Last Revised: Jun. 2021 Page: 6 ...

  • Page 7: Chapter 2 Specifications

    Chapter 2 Specifications 2.1 Specifications Model PM-3133 PM-3133-MTCP AC Power Measurement Wiring 1P2W-1CT, 1P3W-2CT, 3P3W-2CT, 3P3W-3CT and 3P4W-3CT Measurement Voltage 10 ~ 500 V (CAT III) CT Φ10 mm (60 A); CTΦ16 mm (100 A); CTΦ24 mm (200 A); Measurement Current CTΦ36m (300 A);...
  • Page 8 Aux Power +12 ~ 48 VDC or PoE Input Range +12 ~ 48 VDC PoE Pin Assignments: + (Pin 1, 2), V- (Pin 3, 6) Power Consumption Dimensions (W x L x H) 127 mm x 105 mm x 33 mm Environment Operating Temperature -20 ~ +70 °C Storage Temperature...

  • Page 9: Naming Rules

    2.2 Naming Rules PM-3133 User’s Manual v1.09 Last Revised: Jun. 2021 Page: 9  E-mail: service@icpdas.com Copyright © ICP DAS Co., Ltd. All Rights Reserved. www.icpdas.com...

  • Page 10: Chapter 3 Installation

    Chapter 3 Installation 3.1 Inspection The instrument is no longer safe when, a) Shows clear signs of damage b) Does not work c) Long storage under extreme conditions d) Damage during shipment 3.2 Safety Please use the soft dry clothes to clean the instrument. Please do not use any chemical or detergent or volatile solvents to clean the instrument, in order to avoid any possibility of the cover damage.
  • Page 11  Products come with external split type clip-on CT’s. Disconnect the CT’s or use other CT’s is highly prohibited.  Please read this operation manual carefully before using.  Please re-confirm the measure position.  PM-3133 series can be installed as rail mounting mode or embedded, no need to drill a hole or screw to fix it (rail mounting width can up to the length of 35 mm).

  • Page 12: Mounting And Dismounting

    3.2.2 Mounting and Dismounting  Mounting Assembly: Place the PM-3133 on the DIN-Rail. Push the front of the PM-3133 toward the mounting surface until it audibly snaps into place. Dismantling: Pull out the latch and then remove the PM-3133 from the DIN-rail ...

  • Page 13: Ct's Installation Steps

    3.2.3 CT’s installation steps  At the bottom of the CT, there is a “K→L” mark.  Open the CT clip.  Make sure the power current  Installation steps finished. direction follow the “K→L” mark on the CT and then close the CT clip. PM-3133 User’s Manual v1.09 Last Revised: Jun.

  • Page 14: Chapter 4 Wiring Diagrams

    Chapter 4 Wiring Diagrams 4.1 Connection Please firstly check the current input terminal, and then in white black, white black, white black wire sequences (CT1-K, CT1-L, CT2-K, CT2-L,CT3-K,CT3-L). Then connect the CT’s, and close the CT clip. Make sure the arrow direction sign on CT’s follows current flow direction（K→L）...
  • Page 15 Voltage Input PM-3133 series: Input Voltage up to 500V. For any higher Input Voltage large than 500V, please add the PT (power transformer), and Change PT RATIO setup. Confirm the RST (ABC) phase sequence. Current Input The external CT’s are fragile, please handle with care. The current input of PM-3133 series is in mA range.

  • Page 16: Wiring

    4.2 Wiring  1P2W-1CT(PM-3133)  1P3W-2CT(PM-3133)  3P3W-2CT(PM-3133) PM-3133 User’s Manual v1.09 Last Revised: Jun. 2021 Page: 16  E-mail: service@icpdas.com Copyright © ICP DAS Co., Ltd. All Rights Reserved. www.icpdas.com...
  • Page 17  3P3W-3CT(PM-3133)  3P4W-3CT(PM-3133) PM-3133 User’s Manual v1.09 Last Revised: Jun. 2021 Page: 17  E-mail: service@icpdas.com Copyright © ICP DAS Co., Ltd. All Rights Reserved. www.icpdas.com...

  • Page 18: Relay

    Chapter 5 Relay output & LED Indicator 5.1 Relay Relay type Power Relay, Form A (SPST N.O.) Operating Voltage Range 250 VAC/30 VDC Max. Load Current 5 A at 25 °C Operate Time 6 ms Release Time 3 ms 5.2 LED Indicator The PM-3133 has 4 LED to indicate the unit power status, RS-485 communication, and power data calculation.

  • Page 19: Chapter 6 Modbus-Rtu Communication

    Chapter 6 Modbus-RTU communication 6.1 RS-485 setting  Default setting for RS-485: 19200, n, 8, 1  DIP switch (SW1-SW6) is used for Modbus address setting, default is 1, i.e. all OFF For example: Modbus address is 10，find the table of DIP switch 1-6 is ON, OFF, OFF, ON, OFF, OFF 6.1.1 SW1－SW6 setting Setting Modbus-RTU address for communication (1-64)
  • Page 20 PM-3133 User’s Manual v1.09 Last Revised: Jun. 2021 Page: 20  E-mail: service@icpdas.com Copyright © ICP DAS Co., Ltd. All Rights Reserved. www.icpdas.com...
  • Page 21  SW7－SW8 setting PM-3133：For Baud Rate Setting Baud Rate SW 7 9600 bps 19200 bps (Default) 38400 bps 115200 bps Add the Bias Resistor on RS-485 Network for stable signal The RS-485 master is required to provide the bias for PM-3133 series. Otherwise, the tM-SG4 or SG-785 should be added to provide the bias.

  • Page 22: Modbus-Rtu Setting

    6.2 Modbus-RTU setting 6.2.1 Specifications Protocol Modbus-RTU Transmission Bits per Byte： Specifications 1 start bit 8 data bits, least significant bit sent first None Parity 1 stop bits Error Check： Cyclical Redundancy Check (CRC) Baud Rate 9600, 19200 (Default), 38400, 115200 Modbus slave address 1-64 (Default = 1) ...
  • Page 23 IEEE 754 Format Definition of the floating format of the Bits Data Hi Word， Data Hi Word， Data Lo Word， Data Lo Word， Hi Byte Lo Byte Hi Byte Lo Byte SEEE EEEE EMMM MMMM MMMM MMMM MMMM MMMM E - 127 Value = (- 1) x (1.M) x 2 0 <...

  • Page 24: Modbus Register

    6.2.2 Modbus Register  Modbus Module #1 – Coil: Relay Value Modbus Register Data Default Parameter name Range Comment Modicom value Type Format 0 = OFF DO 0 04097 0x1000 Word Byte 1 = ON 0 = OFF DO 1 04098 0x1001 Word...
  • Page 25 0: Disable Harmonic Phase 1: Phase A 44114 0x1011 Word UInt Select 2: Phase B 3: Phase C 0: Automatic Refer to Q12 Display Voltage 44115 0x1012 Word UInt 1: Show as Vln 2: Show as Vll  Modbus Module #3 － Input Register : System Information Modbus Register Data Default...
  • Page 26  Modbus Module #4 － Input Register :Power value (Float) Modbus Register Parameter Data Type Range Units Comment name Modicom Format 0x1100- 0x1101 34353-34354 DWord Float Volt 34355- 34356 0x1102- 0x1103 DWord Float 34357- 34358 0x1104- 0x1105 DWord Float kW_a 34359- 34360 0x1106- 0x1107 kvar_a...
  • Page 27 34417-34418 0x1140-0x1141 PF_tot DWord Float 34419-34420 0x1142-0x1143 kWh_tot DWord Float 34421-34422 0x1144-0x1145 kvarh_tot DWord Float 34423-34424 0x1146-0x1147 kVAh_tot DWord Float 34425-34426 0x1148-0x1149 Freq_a DWord Float 45~65 34427-34428 0x114A-0x114B Freq_b DWord Float 45~65 34429-34430 0x114C-0x114D Freq_c DWord Float 45~65 34431-34432 0x114E-0x114F Freq_max DWord Float...
  • Page 28 34649- 34650 0x1228-0x1229 kvar_c DWord Int32 0.1kvar 34651- 34652 0x122A-0x122B kVA_c DWord Int32 0.1kVA 34653 0x122C PF_c Word 0~1000 0.001PF 0~1.000 34654- 34655 0x122D-0x122E kWh_c DWord Int32 ±0~99999999 0.1kWh ±0~9999999.9 34656-34657 0x122F-0x1230 kvarh_c DWord Int32 0~99999999 0.1kvarh 0~9999999.9 34658-34659 0x1231-0x1232 kVAh_c DWord Int32...
  • Page 29 34888- 34889 0x1317- 0x1318 kvar_b DWord Int32 0.1kvar 34890- 34891 0x1319- 0x131A kVA_b DWord Int32 0.1kVA 34892 0x131B PF_b Word 0~1000 0.001PF 0~1.000 34893- 34894 0x131C- 0x131D kWh_b DWord Int32 ±0~99999999 0.1kWh ±0~9999999.9 34895- 34896 0x131E- 0x131F kvarh_b DWord Int32 0~99999999 0.1kvarh 0~9999999.9...

  • Page 30: Chapter 7 Modbus-Tcp Communication

    Chapter 7 Modbus-TCP Communication 7.1 Default settings Ethernet default settings： IP Address 192.168.255.1 Subnet mask 255.255.0.0 Gateway 192.168.0.1 Port For recovering to default settings, dip Init/Run Switch (SW 4) to Init position for 10 seconds after power on, the settings will be changed as default values. Must dip back to Run position and repower on after settings changed.
  • Page 31 Click “Search” to enter the “Communication Interface Setting” window. Click ”Search” button to search the available power meter. PM-3133 User’s Manual v1.09 Last Revised: Jun. 2021 Page: 31  E-mail: service@icpdas.com Copyright © ICP DAS Co., Ltd. All Rights Reserved. www.icpdas.com...
  • Page 32 Select the power meter which you want to modify parameters from the meter list, then click ”Configuration” button to setup the meter parameters. After complete all setting, click “OK”, and return to the meter list windows. PM-3133 User’s Manual v1.09 Last Revised: Jun.

  • Page 33: Specifications

    7.2 Specifications Modbus-TCP structure Byte 00~05 Byte 06~11 6-byte header RTU Data Modbus-TCP( Byte 00~05) Byte 00 Byte 01 Byte 02 Byte 03 Byte 04 Byte 05 Transaction identifier Protocol identifier Data length Data length upper byte lower byte Transaction identifier = Assign by Modbus/TCP Master (Client) Protocol identifier = 0 Data length (upper byte) = 0 Data length (lower byte) = Depend on the number of the RTU Data bytes...

  • Page 34: Connecting The Power And

    7.3 Connecting the Power and Host PC (without PoE) Power over Ethernet (PoE): The PM-3133-xxx-MTCP module can be powered by an IEEE802.3af compliant PoE switch. Both Ethernet and power can be carried by an Ethernet cable eliminating the need for additional wiring and power supply.

  • Page 35: Chapter 8 Canopen Communication

    Chapter 8 CANopen communication 8.1 CANopen setting  Default setting for CANopen: Baud rate:125 K b.p.s. , Node ID:1  DIP switch (SW1-SW6) is used for Node ID setting, default is 1, i.e. all OFF For example: Node ID is 10，find the table of DIP switch 1-6 is ON, OFF, OFF, ON, OFF, OFF SW1－SW6 setting ...
  • Page 36 PM-3133 User’s Manual v1.09 Last Revised: Jun. 2021 Page: 36  E-mail: service@icpdas.com Copyright © ICP DAS Co., Ltd. All Rights Reserved. www.icpdas.com...
  • Page 37  SW7－SW8 setting PM-3133：For CANopen Baud Rate Setting Baud Rate SW 7 125 K bps(Default) 250 K bps 500 K bps 1M bps  SW9－SW10 setting PM-3133-CPS：Select the different wiring mode (Please select the Software setting, if 1P2W-1CT or 1P3W-2CT is used) Wiring SW 9 SW 10...

  • Page 38: Canopen Protocol

    8.2 CANopen Protocol The CANopen is a kind of network protocols evolving from the CAN bus, used on car control system in early days, and has been greatly used in various applications, such as vehicles, industrial machines, building automation, medical devices, maritime applications, restaurant appliances, laboratory equipment &...
  • Page 39 2: initiate upload request scs: server command specified 2: initiate upload response n : Only valid if e = 1 and s = 1, otherwise 0. If valid, it indicates the number of bytes in d that do not contain data. Bytes [8-n, 7] do not contain segment data.

  • Page 40: Download Sdo Protocol

    ccs: client command specified 3: upload segment request scs: server command specified 0: upload segment response t: toggle bit. This bit must alternate for each subsequence segment that is uploaded. The first segment will have the toggle bit set to 0. The toggle bit will be equal for the request and response message.
  • Page 41 ccs: client command specified 1: initiate download request scs: server command specified 3: initiate download response n: Only valid if e = 1 and s = 1, otherwise 0. If valid, it indicates the number of bytes in d that do not contain data. Bytes [8-n, 7] do not contain segment data.
  • Page 42 x: not used, always 0 reserved: reserved for further use , always 0 PM-3133 User’s Manual v1.09 Last Revised: Jun. 2021 Page: 42  E-mail: service@icpdas.com Copyright © ICP DAS Co., Ltd. All Rights Reserved. www.icpdas.com...
  • Page 43 Download Segment Protocol ccs: client command specified 0: download segment request scs: server command specified 1: download segment response seg-data: It is at most 7 bytes of segment data to be downloaded. The encoding depends on the type of the data referenced by index and sub-index. n: It indicates the number of bytes in seg-data that do not contain segment data.

  • Page 44: Abort Sdo Transfer Protocol

    8.2.1.3 Abort SDO Transfer Protocol In some conditions, the SDO client or SDO server will terminate the SDO transmission. For example, the value of entries that users want to modify does not exist or is read-only, even users wouldn’t continue the uncompleted SDO protocol under some special situations.
  • Page 45 Abort Code Description 0503 0000h Toggle bit not alternated. 0504 0000h SDO protocol timed out. 0504 0001h Client/server command specified not valid or unknown. 0504 0002h Invalid block size (block mode only). 0504 0003h Invalid sequence number (block mode only). 0504 0004h CRC error (block mode only).

  • Page 46: Pdo Introduction

    8.2.2 PDO Introduction 8.2.2.1 PDO COB-ID Parameters Before the real-time data are transmitted by the PDO, it is necessary to check the COB-ID parameter of this PDO in the PDO communication objects. This parameter setting controls the COB-ID of the PDO communication, which is in 32 bits, and each bit with its meaning is given in the table follow.

  • Page 47: Transmission Type

    Note: 1. Users can also define the PDO COB-ID by themselves. Actually, all COB-ID can be defined by users except the reserved COB-ID described in the table of the section 3.1. It is important to avoid the conflict with the defined COB-ID used in the same node.

  • Page 48: Pdo Communication Rule

    The PDO, including the DI value, will be sent when the DI value is changed. And both transmission types will directly trigger an update of the mapped data when receiving the RxPDO.  The PM-3133-CPS doesn’t support RxPDO. 8.2.2.3 PDO Communication Rule The PDO related objects are indicated from index 0x1400 to 0x1BFF.
  • Page 49 COB-ID: the default PDO COB-ID, or the PDO COB-ID defined by users L: the data length about how many bytes the PDO message has PDO-msg: the real-time data or the data which can be mapped into the PDO mapping objects PM-3133 User’s Manual v1.09 Last Revised: Jun.

  • Page 50: Nmt Introduction

    8.2.3 NMT Introduction 8.2.3.1 Module Control Protocol The NMT communication set can be applied for changing the NMT slave status. The following figure shows how to change the different NMT statuses for the PM-3133-CPS. Start Remote Node Protocol cs: NMT command specified 1: start Node ID: the node ID of the NMT slave device Stop Remote Node Protocol...
  • Page 51 Enter Pre-Operational Protocol cs: NMT command specified 128: enter PRE-OPERATIONAL Node ID: the node ID of the NMT slave device Reset Node Protocol cs : NMT command specified 129: Reset_Node Node ID : the node ID of the NMT slave device PM-3133 User’s Manual v1.09 Last Revised: Jun.

  • Page 52: Error Control Protocol

    Reset Communication Protocol cs: NMT command specified 130: Reset_Communication Node ID: the node ID of the NMT slave device 8.2.3.2 Error Control Protocol Error Control Protocol is a kind of the solution to check whether the CANopen device is still alive or not. And its related objects include 0x100C and 0x100D. The 0x100C is the guard time, and the 0x100D is the life time factor.

  • Page 53: Power Meter Data Table

    s: the state of the NMT Slave 4: STOPPED 5: OPERATIONAL 127: PRE_OPERATIONAL 8.2.4 Special Functions for PM-3133-CPS 8.2.4.1 Power Meter Data Table The PM-3133-CPS Manufacturer in the Specific Profile Area defines some entries, which are used for the power meter data. The objects with index 0x3200~0x3209 will map to the PDOs as below table.

  • Page 54: Pm-3133-Cps

    8.3 Object Dictionary of PM-3133-CPS 8.3.1 Communication Profile Area The following tables are regarding each entry of the communication profile area is defined in PM-3133-CPS. For the convenient purpose, all communication entries are divided into several tables. They are “General Communication Entries”, “TxPDO Communication Entries”, and “TxPDO Mapping Communication Entries”.
  • Page 55 “restore default parameters” restore all default parameters UNSIGNED 32 RW -- 1014h COB-ID of EMCY UNSIGNED 32 RW 80h+Node-ID 1015h Inhibit time of EMCY UNSIGNED 16 RW 0 largest sub-index supported for 1018h UNSIGNED 8 “identity object” vendor ID UNSIGNED 32 RO 0000013Ch product code UNSIGNED 32...
  • Page 56 largest sub-index supported 1802h UNSIGNED 8 for “receive PDO parameter” COB-ID used by PDO (Tx) UNSIGNED 32 380h+Node-ID transmission type UNSIGNED 8 inhibit time UNSIGNED 16 … … … reversed event timer UNSIGNED 16 largest sub-index supported 1803h UNSIGNED 8 for “receive PDO parameter”...
  • Page 57 largest sub-index supported 1A01h UNSIGNED 8 for “transmit PDO mapping” read Kw_b data UNSIGNED 32 3200 0220h read kWh_b data UNSIGNED 32 3201 0220h largest sub-index supported 1A02h UNSIGNED 8 for “transmit PDO mapping” read Kw_c data UNSIGNED 32 3200 0320h read kWh_c data UNSIGNED 32 3201 0320h...
  • Page 58 largest sub-index supported 1A0Ah UNSIGNED 8 for “transmit PDO mapping” read kvar(kvar_c) data UNSIGNED 32 3204 0320h read kVA(Kva_c) data UNSIGNED 32 3205 0320h largest sub-index supported 1A0Bh UNSIGNED 8 for “transmit PDO mapping” read kvar_tot data UNSIGNED 32 3204 0420h read Kva_tot data UNSIGNED 32 3205 0420h...

  • Page 59: Profile Area

    largest sub-index supported 1A13h UNSIGNED 8 for “transmit PDO mapping” read kvarh_tot data UNSIGNED 32 3208 0420h read Freq_avg data UNSIGNED 32 3209 0420h Power On Value Function Sidx Description Type Attr Default 2010h Number of Output 8-Bit UNSIGNED 8 Set DO power on value of UNSIGNED 8 ch0 and ch1...
  • Page 60 kWh_b REAL 32 kWh_c REAL 32 kWh_tot REAL 32 Number of entries for “Volt” 3202h UNSIGNED 8 Volt(V_a) REAL 32 Volt(V_b) REAL 32 Volt(V_c) REAL 32 Volt(V_avg) REAL 32 Number of entries for “Amp” 3203h UNSIGNED 8 Amp(I_a) REAL 32 Amp(I_b) REAL 32 Amp(I_c)
  • Page 61 kvarh_c REAL 32 kvarh_tot REAL 32 Number of entries for “Frequency” UNSIGNED 8 3209h Freq_a REAL 32 Freq _b REAL 32 Freq _c REAL 32 Freq _avg REAL 32 Number of entries for “Total 320Ah UNSIGNED 8 Harmonic Distortion” VTHD REAL 32 ITHD REAL 32...

  • Page 62: Store And Restore Object

    8.3.3 Store and Restore Object The users can write the object the value 65766173h to object with index 1010h and subindex 1 to save the application setting, or write the value 64616F6Ch to object with index 1011h and subindex 1 and reboot the module to load the factory default. The following table lists the relative objects which will be stored or restored after writing these two objects: Index...

  • Page 63: Appendix: Questions & Answers

    Appendix: Questions & Answers Q1. Can we use the other 5A CT’s (like 300/5) to directly connect to the input current terminals of PM-3133 series? No, because the input current is only mA size on PM-3133 series，definitely not to directly use other 5A CT’s to connect and apply （like100/5…） ，It could causes the fetal damages.
  • Page 64 Q6. PC and meter cannot make the connection with RS-485？ (1) Confirm the Modbus Address, default is 1. (2) Confirm the Band Rate, default is 19200. (3) Confirm the stop bit, default is 1. (4) Confirm the RS-485 connection, make sure the D+/D- is right. (5) Confirm the RS-485 master have to provide the bias for PM-3133 series.
  • Page 65 The CT of PM-3133 maximum range is 400A. If the target is more than 400A, we suggest the solution as follow. For example the target is to measure maximum 800A current. We can measure big CT output and set a CT Ratio. Note: A.
  • Page 66 Q10. Can I use CT's that I currently own with PM-3133 Power Meter? You can use CT's that you currently own with PM-3133P (without CTs) Power Meter. The CT inputs of the PM-3133P can handle a maximum of 333mV of AC current. PM-3133P's current ratio is always full scale to 5A.
  • Page 67 voltage is 380/1.73 = 220 volts PM-3133 User’s Manual v1.09 Last Revised: Jun. 2021 Page: 67  E-mail: service@icpdas.com Copyright © ICP DAS Co., Ltd. All Rights Reserved. www.icpdas.com...
  • Page 68 Q12. How to set up [Display Voltage] register value to correctly display line to ground voltage or line to line voltage? The voltage [V_x] register in Modbus register table can be used to show line-to-ground voltage or line-to-line voltage value by setting [Display Voltage] register value. According to different wiring types, it is required to set different [Display Voltage] value.
  • Page 69 Q14. How to measure the Voltage large than 500V? For service voltage above 600 Vac, voltage transformers (PTs) are used to step down the voltage to a lower range that will work with a PM-3133 meter. Selecting a Transformer: Selecting the right voltage transformer is simple. Review the following considerations to determine the best fit for your application.
  • Page 70 Q15. The Power Meter can be connected to a remote display (via RS-485). A: Power Meter can be connected to VPD-13x or VPD-14x series via RS-485: B: Two Masters Share One Slave (via tSH-735): This function allows two master devices connected to different serial ports to share slave devices.
  • Page 71 Appendix 2: PVC wire and model copper wire Wire CT spec. external Reference CT size and (internal Quantity Item diameter current (A) product model diameter/Max SIZE /Diameter (mm) . current) (mm) Flat cable Ø 10 7/0.6 10mm/60A (PM-3133-100) 7/0.8 7/1.0 7/1.2 7/1.6 7/2.0...

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