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EET PMC-S963-C User Manual

Intelligent multifunction meter
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PMC- S963-C
Intelligent Multifunction Meter
User Manual
Version: V1.0
October 8, 2023

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Summary of Contents for EET PMC-S963-C

  • Page 1 PMC- S963-C Intelligent Multifunction Meter User Manual Version: V1.0 October 8, 2023...
  • Page 2 CET Electric Technology This manual may not be reproduced in whole or in part by any means without the express written permission from CET Inc. (CET). The information contained in this manual is believed to be accurate at the time of publication; however, CET assumes no responsibility for any errors which may appear here and reserves the right to make changes without notice.
  • Page 3 CET Electric Technology DANGER Failure to observe the following instructions may result in severe injury or death and/or equipment damage. ➢ Installation, operation and maintenance of the meter should only be performed by qualified, competent personnel that have the appropriate training and experience with high voltage and current devices.
  • Page 4 CET Electric Technology Limited warranty ➢ CET Inc. (CET) offers the customer a minimum of 12-month functional warranty on the meter for faulty parts or workmanship from the date of dispatch from the distributor. This warranty is on a return to factory for repair basis. ➢...

  • Page 5: Table Of Contents

    Table of Contents ..............................4 Chapter 1 Introduction ............................6 1.1 Overview ............................... 6 1.2 Features ................................ 6 1.3 PMC-S963-C application in Power and Energy Management Systems ............8 1.4 Getting more information..........................8 Chapter 2 Installation ............................. 9 2.1 Appearance ..............................9 2.2 Unit Dimensions ............................
  • Page 6 CET Electric Technology 4.6 Time of Use (TOU) ............................30 4.7 Diagnostics ..............................30 Chapter 5 Modbus Register Map .......................... 32 5.1 Real-Time Measurements ........................... 32 5.2 Energy Measurements ..........................33 ....................33 5.2.1 3-Phase Total Energy Measurements ...................... 34 5.2.2 Phase A Energy Measurements ......................

  • Page 7: Chapter 1 Introduction

    2xDO, 1xSS Pulse Output and 1xAO for different applications. The standard RS- 485 port and Modbus RTU protocol support make the PMC-S963-C a smart metering component of an intelligent, multifunction monitoring solution for any Energy Management System.
  • Page 8 CET Electric Technology Setpoints ▪ 9 user programmable setpoints with extensive list of monitoring parameters including Voltage, Current, Power, P Demand, Unbalance, Phase Reversal and THD, etc. ▪ Configurable thresholds, time delays and DO triggers SOE Log ▪ 32 events time-stamped to ±1ms resolution ▪...

  • Page 9: Pmc-S963-C Application In Power And Energy Management Systems

    1.3 PMC-S963-C application in Power and Energy Management Systems The PMC-S963-C can be used to monitor Wye or Delta connected power system. Modbus communications allow real-time data, DI status and other information to be transmitted across a RS-485 network to an Integrated Energy Management system such as PecStar®...

  • Page 10: Chapter 2 Installation

    Chapter 2 Installation Caution Installation of the PMC-S963-C should only be performed by qualified and competent personnel who have the appropriate training and experience with high voltage and current devices. The meter must be installed in accordance with all local and national electrical codes.

  • Page 11: Unit Dimensions

    CET Electric Technology 2.2 Unit Dimensions Unit: mm Figure 2-2 Unit Dimensions 2.3 Terminal Dimensions Figure 2-3 Terminal Dimensions Terminal Terminal Dimensions Wire Size Max. Torque RS-485 Digital Input 5 kgf.cm/M3 Solid-State Pulse Output 2.6mm x 3.2mm 1.5mm (5 lb-in) Digital Output Power Supply Voltage Input...

  • Page 12: Mounting

    CET Electric Technology 2.4 Mounting The PMC-S963-C should be installed in a dry and dust-free environment and kept away from heat, radiation and electrical noise sources. Installation steps: ▪ Remove the installation clips from the meter ▪ Fit the meter through a 96mmx96mm cutout as shown in Figure 2-4 ▪...

  • Page 13: 3-Phase 4-Wire (3P4W) Wye Direct Connection With 3Cts

    CET Electric Technology 2.5.1 3-Phase 4-Wire (3P4W) Wye Direct Connection with 3CTs Please consult the serial number label to ensure that the rated system phase voltage is less than or equal to the meter’s rated phase voltage input specification. Set the Wiring Mode to 3P4W. Figure 2-5 3P4W Direct Connection with 3CTs 2.5.2 3-Phase 4-Wire (3P4W) Wye with 3PTs and 3CTs Please consult the serial number label to ensure that the rated PT secondary voltage is less than or equal to the...

  • Page 14: 3-Phase 3-Wire (3P3W) Direct Delta Connection With 3Cts

    CET Electric Technology 2.5.3 3-Phase 3-Wire (3P3W) Direct Delta Connection with 3CTs Please consult the serial number label to ensure that the rated system line voltage is less than or equal to the meter’s rated line voltage input specification. Set the Wiring Mode to 3P3W. Figure 2-7 3P3W Direct Connection with 3CTs 2.5.4 3-Phase 3-Wire (3P3W) Direct Delta Connection with 2CTs Please consult the serial number label to ensure that the rated system line voltage is less than or equal to the...

  • Page 15: 3-Phase 3-Wire (3P3W) Delta With 2Pts And 3Cts

    CET Electric Technology 2.5.5 3-Phase 3-Wire (3P3W) Delta with 2PTs and 3CTs Please consult the serial number label to ensure that the rated PT secondary voltage is less than or equal to the meter’s rated phase voltage input specification. Set the Wiring Mode to 3P3W. Figure 2-9 3P3W Delta with 2PTs and 3CTs 2.5.6 3-Phase 3-Wire (3P3W) Delta with 2PTs and 2CTs Please consult the Serial Number Label to ensure that the rated PT secondary voltage is less than or equal to the...

  • Page 16: Communications Wiring

    CET Electric Technology 2.6 Communications Wiring The PMC-S963-C provides one standard RS-485 port which supports the Modbus RTU protocol. Up to 32 devices can be connected on a RS-485 bus. The overall length of the RS-485 cable connecting all devices should not exceed 1200m.

  • Page 17: Solid-State Pulse Output Wiring

    CET Electric Technology 2.9 Solid-State Pulse Output Wiring The following figure illustrates the Solid-State Pulse Output connections on the PMC-S963-C: Figure 2-15 Solid-State Pulse Output Connections 2.10 Analog Input Wiring The following figure illustrates the Analog Input connections on the PMC-S963-C: Figure 2-16 AI Connections 2.11 Power Supply Wiring...

  • Page 18: Chapter 3 Front Panel

    CET Electric Technology Chapter 3 Front Panel The PMC-S963-C has a large, easy to read LCD display with backlight and four buttons for data display and meter configuration. This chapter introduces the front panel operations. Figure 3-1 Front Panel 3.1 Display...

  • Page 19: Using The Front Panel Buttons

    Table 3-1 Special LCD display symbols 3.2 Using the Front Panel Buttons The PMC-S963-C’s front panel has been designed with a 4-button user-friendly interface that allows users to quickly scroll through most of the available measurements. The default password is 0 (one zero).

  • Page 20: Data Display

    CET Electric Technology default page (P/Q/S Total). pressing this button selects a parameter for Pressing this button for more than 2 modification or chooses whether to enter a sub- seconds enters the Setup menu. • After changing the parameter, pressing this Configuration mode.

  • Page 21: Setup Configuration Via The Front Panel

    CET Electric Technology Display 3 kvarh Import Display 4 kvarh Export Display 5 kVAh Display 6 Phase A kWh Import Display 7 Phase A kWh Export Display 8 Phase A kvarh Import Display 9 Phase A kvarh Export Display 10 Phase B kWh Import Display 11 Phase B kWh Export...

  • Page 22: Setup Menu

    CET Electric Technology 3.4.2 Setup Menu Figure 3-3 Setup Menu 3.4.3 Configuration The Setup Configuration mode provides access to the following setup parameters: Label Parameters Description Range Default Menu Main PROG Programming Setup Configuration Input PASS Password Enter Password 0 to 9999 Enter sub menu to set basic BASIC SET YES/NO...
  • Page 23 CET Electric Technology Timeout I PHS A REV Ia CT Polarity Reverse Ia CT Polarity Yes/No I PHS B REV Ib CT Polarity Reverse Ib CT Polarity Yes/No I PHS C REV Ic CT Polarity Reverse Ic CT Polarity Yes/No Enter sub menu to set Comm.
  • Page 24 CET Electric Technology There are two ways to calculate kVA: Mode V (Vector method): Mode S (Scalar method): There are two ways to calculate THD: THDf (based on Fundamental): where I represents the RMS value for the n harmonic and I represents the RMS value of the Fundamental harmonic.

  • Page 25: Chapter 4 Applications

    4.1 Inputs and Outputs 4.1.1 Digital Inputs The PMC-S963-C comes standard with four self-excited Digital Inputs that are internally wetted at 24 VDC with a sampling frequency of 1000Hz and programmable debounce. The Digital Inputs on the PMC-S963-C are typically used for status monitoring which can help prevent equipment damage, improve maintenance, and track security breaches.

  • Page 26: Power And Energy

    Predicted demand is typically used for pre-alarming and to help users reduce power consumption using a Setpoint to warn that the Demand limit may be exceeded. The PMC-S963-C provides Present Demand and Predicted Demand for P Total which can be retrieved through the Front Panel or communications.

  • Page 27: Power Quality

    The PMC-S963-C provides the following PQ parameters: 4.3.2.1 Harmonics The PMC-S963-C provides harmonic analysis for THD, TOHD, TEHD and individual harmonics up to the 31 order. All harmonic parameters are available on the front panel and through communications. In addition, the PMC- S963-C also provides TDD and Crest Factor measurements for current.

  • Page 28: Unbalance

    Crest Factor is defined as the Peak to Average Ratio (PAR), and its calculation is illustrated below: where = Peak amplitude of the waveform peak = RMS value The following table illustrates the available Voltage and Current Harmonics measurements on the PMC-S963-C. Phase A/AB Phase B/BC Phase C/CA TEHD...
  • Page 29 CET Electric Technology Figure 4-1 Over Setpoint Figure 4-2 Under Setpoint Setpoints can be programmed through communications and have the following setup parameters: Setup Parameter Definition Options/Default* 0=Disabled* Setpoint Type Over or Under Setpoint. 1=Over Setpoint 2=Under Setpoint Setpoint Parameter Specify the parameter to be monitored.

  • Page 30: Logging

    4.5 Logging 4.5.1 Max./Min. Log The PMC-S963-C records the Max. Log and Min. Log of This Month (Since Last Reset) and Last Month (Before Last Reset) with timestamp for the parameters listed in Table 4-10. Each log includes the relevant parameter value and its timestamp.

  • Page 31: Monthly Energy Log

    4.5.4 12 Monthly Energy Log The PMC-S963-C stores monthly energy data for the present month and the last 12 months. The Self-read Time setup parameter allows the user to specify the time and day of the month for the Recorder’s Self-read operation via communications.
  • Page 32 CET Electric Technology ▪ P is P Import, which means the P is over 0 ▪ The wiring is correct ▪ 3P4W wiring mode supports all detections ▪ 3P3W wiring mode does not support the detection of Voltage Phase Loss, P Direction per phase The Diagnostic register (0101) indicates the status of the wiring error detection with a bit value of 1 meaning active and 0 meaning inactive which are illustrated in table below: Event...

  • Page 33: Chapter 5 Modbus Register Map

    S963-C to facilitate the development of 3 party communications driver for accessing information on the PMC- S963-C. For a complete Modbus Protocol Specification, please visit http://www.modbus.org. The PMC-S963-C supports the following Modbus functions: 1) Read Holding Registers (Function Code 0x03)

  • Page 34: Energy Measurements

    Table 5-3 Wiring Diagnostic Status Register 5) The PMC-S963-C has one SOE Log. The log has a Log Pointer that indicates its current logging position. The range of the Log Pointer is between 0 and 0xFFFFFFFF, and it is incremented by one for every new log generated and will roll over to 0 if its current value is 0xFFFFFFFF.

  • Page 35: Phase A Energy Measurements

    This register represents the Month when it is read. To read the Monthly Energy Log, this register must be first written to indicate to the PMC-S963-C which log to load from memory. The range of this register is from 1 to 12, which represents the Last 12 Months. For example, if the current month is 2023/7, “1”...

  • Page 36: Harmonic Measurements

    CET Electric Technology 5.4 Harmonic Measurements 5.4.1 Power Quality Measurements Register Property Description Format Scale Unit 1300 Ia TH (RMS) Float 1302 Ib TH (RMS) Float 1304 Ic TH (RMS) Float 1306 Ia THD Float 1308 Ib THD Float 1310 Ic THD Float 1312...

  • Page 37: Voltage Harmonic Measurements

    CET Electric Technology 1412 Ia TEHD Float 1414 Ib TEHD Float 1416 Ic TEHD Float 1418 Ia HD02 Float 1420 Ib HD02 Float 1422 Ic HD02 Float 1424~1590 … Float 1592 Ia HD31 Float 1594 Ib HD31 Float 1596 Ic HD31 Float Table 5-10 Current Harmonic Measurements 5.4.3 Voltage Harmonic Measurements...

  • Page 38: Min. Log Of This Month (Since Last Reset)

    CET Electric Technology 4030~4035 4036~4041 4042~4047 ULL Average 4048~4053 4054~4059 4060~4065 4066~4071 I Average 4072~4077 4078~4083 4084~4089 4090~4095 P Total 4096~4101 4102~4107 4108~4113 4114~4119 Q Total 4120~4125 4126~4131 4132~4137 4138~4143 S Total 4144~4149 4150~4155 4156~4161 4162~4167 PF Total 4168~4173 Frequency 4174~4179 In (Calculated) 4180~4185...

  • Page 39: Max. Log Of Last Month (Before Last Reset)

    CET Electric Technology 4468~4473 Frequency 4474~4479 In (Calculated) 4480~4485 Uan/Uab THD 4486~4491 Ubn/Ubc THD 4492~4497 Ucn/Uca THD 4498~4503 Ia THD 4504~4509 Ib THD 4510~4515 Ic THD 4516~4521 Voltage Unbalance 4522~4527 Current Unbalance Table 5-15 Min. Log of This Month (Since Last Reset) 5.6.3 Max.

  • Page 40: Max./Min. Log Structure

    CET Electric Technology 4954~4959 4960~4965 4966~4971 I Average 4972~4977 4978~4983 4984~4989 4990~4995 P Total 4996~5001 5002~5007 5008~5013 5014~5019 Q Total 5020~5025 5026~5031 5032~5037 5038~5043 S Total 5044~5049 5050~5055 5056~5061 5062~5067 PF Total 5068~5073 Frequency 5074~5079 In (Calculated) 5080~5085 Uan/Uab THD 5086~5091 Ubn/Ubc THD 5092~5097...
  • Page 41 CET Electric Technology Notes: 1) SOE Log Data Structure Offset Property Description Unit High-order Byte: Event Classification See Table 5-21 Low-order Byte: Sub-Classification SOE Classification Record Time: Year 0-37 (Year-2000) Record Time: Month 1 to 12 Record Time: Day 1 to 31 Record Time: Hour 0 to 23 Record Time: Minute...

  • Page 42: Device Setup

    CET Electric Technology 2 / 1 Under PF Total Setpoint Active/Return Under P Total Present Demand Setpoint 2 / 1 Active/Return 51~52 Reserved Under P Total Predicted Demand Setpoint 2 / 1 Active/Return 54~55 Reserved 2 / 1 Under Voltage THD Setpoint Active/Return 57~58 Reserved 2 / 1...

  • Page 43: I/O Setup

    CET Electric Technology 1 to 5A 6006 CT Secondary UINT32 Default: 5A (5A Input Current) 1A (1A Input Current) 6008~6018 Reserved UINT32 6020 Wiring Mode UINT16 0=DEMO, 1=3P3W, 2=3P4W* 6021 PF Convention UINT16 0=IEC*, 1=IEEE, 2=-IEEE 6022 kVA Calculation UINT16 0=Vector*, 1=Scalar 6023 Ia Polarity...

  • Page 44: Communication Setup Parameters

    0 to 9999 s, 0* 6588 Trigger Action 1 UINT16 0* to 2 6589 Trigger Action 2 UINT16 Table 5-26 Setpoint Setup Parameters Notes: 1) The PMC-S963-C provides the following setpoint parameters: Parameter Scale Unit None ULN (Any Phase Voltage)

  • Page 45: Tou Setup

    Under Limit to become inactive. For Under Setpoint, the setpoint parameter must go below the Under Limit to become active and exceed the Over Limit to become inactive. 3) The PMC-S963-C provides the following Setpoint Triggers: Action None DO1 Closed...

  • Page 46: Daily Profile

    5.10 Time There are two sets of Time registers supported by the PMC-S963-C – Year / Month / Day / Hour / Minute / Second (Registers # 60000 to 60002) and UNIX Time (Register # 60004). When sending time to the PMC-S963-C over Modbus communications, care should be taken to only write one of the two Time register sets.

  • Page 47: Remote Control

    Holding Registers (4XXXXX), which can be controlled with the Force Single Coil command (Function Code 0x05) or the Preset Multiple Hold Registers (Function Code 0x10). The PMC-S963-C does not support the Read Coils command (Function Code 0x01) because DO Control registers are “Write-Only”. The DO Status register 0098 should be read instead to determine the current DO status.
  • Page 48 0=None 1=1xAO Others: Reserved Table 5-36 Meter Information Notes: 1) The Meter Model appears from registers 60200 to 60219 and contains the ASCII encoding of the string “PMC-S963-C” as shown in the following table. Register Value(Hex) ASCII 60200 0x50 60201...

  • Page 49: Appendix A Technical Specifications

    CET Electric Technology Appendix A Technical Specifications Voltage Inputs (V1, V2, V3, VN) Standard Un 240ULN/415ULL Range 30V to 1.2Un Overload 1.2xUn continuous 2xUn for 1s Burden <0.02VA per phase @ 240ULN Measurement Category CAT III up to 300V Frequency 45-65Hz Current Inputs (∙I11, I12, ∙I21, I22, ∙I31, I32) Standard In...
  • Page 50 CET Electric Technology Accuracy Parameters Accuracy Resolution Voltage ±0.2% 0.001V Current ±0.2% 0.001A In (Calculated) ±1.0% 0.001A P, Q, S ±0.5% 0.001kX IEC 62053-22 Class 0.5S 0.1kWh kvarh IEC 62053-23 Class 2 0.1kvarh ±0.5% 0.001 Frequency ±0.02Hz 0.01Hz IEC 61000-4-7 Class II 0.001% ±1.0%...

  • Page 51: Appendix B Standards Compliance

    CET Electric Technology Appendix B Standards Compliance Safety Requirements CE LVD 2014 / 35 / EU EN 61010-1: 2010 EN 61010-2-030: 2010 Electrical Safety in Low Voltage Distribution IEC 61557-12: 2018 (PMD) Systems up to 1000Vac and 1500 Vdc Insulation IEC 62052-11: 2003 IEC 62053-22: 2003 AC Voltage: 2kV @ 1 minute...

  • Page 52: Appendix C Ordering Guide

    CET Electric Technology Appendix C Ordering Guide...

  • Page 53: Contact Us

    CET Electric Technology Contact us Email: sales@cet-global.com Web: www.cet-global.com...

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