CET PMC-592 User manual

PMC-592
Multi Circuit Power Monitor
User Manual
Version: V1.1
November 21, 2018

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CET Electric Technology
This manual may not be reproduced in whole or in part by any means without the express written
permission from CET Electric Technology (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. Please consult CET or your local representative for latest
product specifications.
Standards Compliance
DANGER
This symbol indicates the presence of danger that may result in severe injury or death and
permanent equipment damage if proper precautions are not taken during the installation,
operation or maintenance of the device.
CAUTION
This symbol indicates the potential of personal injury or equipment damage if proper precautions
are not taken during the installation, operation or maintenance of the device.

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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. The meter must be installed in
accordance with all local and national electrical codes.

Ensure that all incoming AC power and other power sources are turned OFF before
performing any work on the meter.

Before connecting the meter to the power source, check the label on top of the
meter to ensure that it is equipped with the appropriate power supply, and the
correct voltage and current input specifications for your application.

During normal operation of the meter, hazardous voltages are present on its
terminal strips and throughout the connected potential transformers (PT) and
current transformers (CT). PT and CT secondary circuits are capable of generating
lethal voltages and currents with their primary circuits energized. Follow standard
safety precautions while performing any installation or service work (i.e. removing
PT fuses, shorting CT secondaries, …etc).

Do not use the meter for primary protection functions where failure of the device
can cause fire, injury or death. The meter should only be used for shadow
protection if needed.

Under no circumstances should the meter be connected to a power source if it is
damaged.

To prevent potential fire or shock hazard, do not expose the meter to rain or
moisture.

Setup procedures must be performed only by qualified personnel familiar with the
instrument and its associated electrical equipment.
DO NOT open the instrument under any circumstances.

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Limited warranty

CET Electric Technology (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.

CET does not accept liability for any damage caused by meter malfunctions. CET
accepts no responsibility for the suitability of the meter to the application for which it
was purchased.

Failure to install, set up or operate the meter according to the instructions herein will
void the warranty.

Only CET’s duly authorized representative may open your meter. The unit should only
be opened in a fully anti-static environment. Failure to do so may damage the
electronic components and will void the warranty.

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Table of Contents
Table of Contents......................................................................................................................................4
Glossary .................................................................................................................................................... 8
Chapter 1 Introduction ............................................................................................................................. 9
1.1 Overview ....................................................................................................................................9
1.2 Features......................................................................................................................................9
1.3 Getting more information ........................................................................................................12
Chapter 2 Installation ............................................................................................................................. 13
2.1 Appearance ..............................................................................................................................13
2.1.1 Main Unit ......................................................................................................................13
2.1.2 HMI and LCD Display (Optional)....................................................................................14
2.1.3 Accessories....................................................................................................................14
2.2 Dimensions...............................................................................................................................15
2.2.1 Main Unit ......................................................................................................................15
2.2.2 HMI (Optional) ..............................................................................................................15
2.2.3 21-CT Strip with ¾ " Spacing ..........................................................................................16
2.2.4 21-CT Strip with 1" Spacing...........................................................................................16
2.2.5 12-CT Strip with ¾ " Spacing ..........................................................................................17
2.2.6 CT Strip’s Solid-Core CT .................................................................................................17
2.2.7 SCCT Adapter Board......................................................................................................17
2.2.8 Mains SCCT ...................................................................................................................18
2.2.9 Branch SCCT ..................................................................................................................18
2.3 Mounting..................................................................................................................................20
2.3.1 Mounting the Main Unit ...............................................................................................20
2.3.2 Mounting the Branch CTs..............................................................................................20
2.3.3 Mounting the Optional 7” Touch-Screen HMI ..............................................................25
2.3.4 Mounting the Optional LCD Display..............................................................................26
2.3.5 Mounting the Optional External DI Module (PMC-521D).............................................26
2.4 Wiring Connections ..................................................................................................................27
2.4.1 Panel Mode and Wiring ................................................................................................27
2.4.2 Wiring for 5A/10A CT Strip with External CTs ...............................................................39
2.4.3 Branch Circuit Wiring and Sub Meter Assignment........................................................40
2.5 Communications Wiring ...........................................................................................................42
2.5.1 Ethernet Port (10/100BaseT) ........................................................................................42
2.5.2 P1/HMI (RS485/RS422/RS232) Wiring ..........................................................................42
2.5.3 P2 (RS485) Wiring .........................................................................................................43
2.5.4 PMC-592 External DI Module Wiring ............................................................................43
2.6 Digital Input Wiring ..................................................................................................................44
2.7 Digital Output Wiring ...............................................................................................................44
2.8 RTD Input Wiring ......................................................................................................................44
2.9 Main Unit Power Supply Wiring ...............................................................................................44
2.10 HMI Power Supply Wiring ......................................................................................................45
2.11 Chassis Ground Wiring ...........................................................................................................45

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Chapter 3 User Interface ........................................................................................................................ 46
3.1 Front Panel LED Indicators........................................................................................................46
3.2 Web Interface...........................................................................................................................46
3.2.1 Setting PC's IP Address..................................................................................................46
3.2.2 Configure PMC-592's IP Address using the Touch-Screen HMI.....................................47
3.2.3 Accessing PMC-592’s Web Interface via Mobile Devices ..............................................47
3.2.4 Accessing PMC-592’s Web Interface .............................................................................48
3.3 HMI Display (Optional) .............................................................................................................72
3.3.1 Display Hierarchy and Menu Tree .................................................................................72
3.3.2 HMI ...............................................................................................................................73
Chapter 4 Applications ...........................................................................................................................78
4.1 Inputs and Outputs ..................................................................................................................78
4.1.1 Digital Inputs .................................................................................................................78
4.1.2 Digital Outputs ..............................................................................................................79
4.2 Power, Energy and Demand .....................................................................................................79
4.2.1 Basic Measurements.....................................................................................................79
4.2.2 Energy Measurements ..................................................................................................80
4.2.3 Demands .......................................................................................................................81
4.3 Alarm Setpoints........................................................................................................................81
4.3.1 Alarm Status..................................................................................................................81
4.3.2 Alarm Counters .............................................................................................................82
4.3.3 Universal Hysteresis and Current ON/OFF Status .........................................................82
4.3.4 Current Alarms..............................................................................................................84
4.3.5 Voltage Alarm................................................................................................................86
4.3.6 Power and Power Factor Alarms...................................................................................88
4.3.7 Frequency Alarm...........................................................................................................90
4.3.8 Unbalance Alarm ..........................................................................................................91
4.3.9 Harmonic Distortion Alarm ...........................................................................................91
4.3.10 Temperature Alarm .....................................................................................................92
4.3.11 DI Alarm ......................................................................................................................92
4.3.12 Dip, Swell and Interruption Alarm ..............................................................................93
4.3.13 Phase Reversal and Phase Loss Alarm.........................................................................95
4.4 Power Quality Parameters........................................................................................................96
4.4.1 Unbalance .....................................................................................................................96
4.4.2 Harmonics .....................................................................................................................96
4.4.3 Supply Voltage Dips/Swells and Interruptions ..............................................................98
4.5 Sub-Meters (SM) ......................................................................................................................98
4.5.1 SM Overview.................................................................................................................98
4.5.2 Flexible Configuration for 2-Ø and 3-Ø SM Grouping .................................................101
4.6 Virtual Meters (VM) ...............................................................................................................102
4.7 Data Logging...........................................................................................................................103
4.7.1 SOE Recorder ..............................................................................................................103
4.7.2 Max/Min Recorder......................................................................................................103
4.7.3 Interval Energy Recorder (IER) ....................................................................................104

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4.7.4 Waveform Recorder (WFR) .........................................................................................104
4.7.5 Data Recorder (DR) .....................................................................................................105
4.8 Communications ....................................................................................................................106
4.8.1 Modbus TCP ................................................................................................................106
4.8.2 HTTP............................................................................................................................106
4.8.3 SNMP (Simple Network Management Protocol) ........................................................106
4.8.4 SNTP (Simple Network Time protocol)........................................................................110
4.8.5 SMTP (Simple Mail Transfer Protocol).........................................................................110
4.8.6 FTP (File Transfer Protocol) .........................................................................................111
Chapter 5 Modbus Register Map.......................................................................................................... 114
5.1 Status Register........................................................................................................................114
5.1.1 General Status.............................................................................................................114
5.1.2 Instantaneous Alarm...................................................................................................115
5.1.3 Latched Alarm .............................................................................................................116
5.1.4 Alarm Counter.............................................................................................................117
5.1.5 External Digital Input Module Status ..........................................................................118
5.1.6 Data Recorder Pointer.................................................................................................118
5.2 Basic Measurements ..............................................................................................................118
5.2.1 Mains Measurements .................................................................................................118
5.2.2 SM Measurements......................................................................................................120
5.3 Energy Measurements ...........................................................................................................121
5.3.1 Mains Energy ..............................................................................................................121
5.3.2 SM Energy ...................................................................................................................121
5.3.3 Mains Tariff Energy .....................................................................................................122
5.4 Demand..................................................................................................................................122
5.4.1 Real-time Demand ......................................................................................................122
5.4.2 Max Demand Log ........................................................................................................124
5.5 Harmonics Measurements .....................................................................................................126
5.5.1 Mains Harmonic Measurements.................................................................................126
5.5.2 Branch THD Measurements ........................................................................................127
5.5.3 Mains K Factor ............................................................................................................127
5.5.4 Mains Crest Factor ......................................................................................................127
5.5.5 Mains TDD Measurements .........................................................................................127
5.6 Log Register ............................................................................................................................128
5.6.1 SOE Recorder Log........................................................................................................128
5.6.2 Max/Min Recorder Log (MMR Log).............................................................................128
5.6.3 Data Recorder Log.......................................................................................................132
5.7 VM Data..................................................................................................................................133
5.7.1 VM kW Measurements ...............................................................................................133
5.7.2 VM Energy Measurements .........................................................................................133
5.7.3 VM Tariff Energy Measurements ................................................................................133
5.8 Setup Parameters ...................................................................................................................134
5.8.1 System Parameters......................................................................................................134
5.8.2 Communications Setup ...............................................................................................137

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5.8.3 SM Name Setup ..........................................................................................................138
5.8.4 Breakers Rating Setup .................................................................................................139
5.8.5 Alarm Setup ................................................................................................................139
5.8.6 Branch Setup Parameters............................................................................................142
5.8.7 VM (Virtual Meter) Setup ...........................................................................................143
5.8.8 WFR Setup...................................................................................................................145
5.8.9 Interval Energy Recorder Setup ..................................................................................145
5.8.10 Control Setup ............................................................................................................147
5.8.11 Data Recorder Setup .................................................................................................150
5.9 Time Registers ........................................................................................................................150
5.10 Meter Information................................................................................................................151
Appendix A - SOE Event Classification ..................................................................................................153
Appendix B –DR Parameter and Default DR Setting ............................................................................156
Appendix C - Technical Specifications...................................................................................................164
Appendix D - Accuracy Specifications...................................................................................................165
Appendix E - Standards Compliance.....................................................................................................166
Appendix F –Firmware Upgrade ..........................................................................................................167
Appendix G - PMC-592 Firmware and HMI Version Compatibility .......................................................171
Appendix H - FAQ..................................................................................................................................172
Contact us............................................................................................................................................. 176

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Glossary
ATS = Automatic Transfer Switch
CET = CET Electric Technology
DI = Digital Input
DMD = Present Demand
DO = Digital Output
FIFO = First In First Out
Fund. = Fundamental
GB = Giga Byte
HMI = Human Machine Interface
Hn = nth order Harmonic, integer multiple (n) of the Fundamental Frequency (50Hz or 60Hz)
IHn = nth order Interharmonic represents all components between the (n-1)th and nth harmonic orders in RMS
HDn = nth order Harmonic Distortion
IHDn = nth order Interharmonic Distortion
IER = Interval Energy Recorder
I4 = Zero Sequence Current
LED = Light Emitting Diode
MB = Mega Byte
MIB = Management Information Base
MCPM = Multi Circuit Power Monitor
MMR = Max/Min Recorder
MXR = Max Recorder
NMS = Network Management System
OID = Object Identifier
PQ = Power Quality
RTC = Real Time Clock
RTD = Resistance Temperature Detector
SCCT = Split-core CT
SM = Sub Meter
SNMP = Simple Network Management Protocol
SOE = Sequence Of Events
STS = Static Transfer Switch
TDD = Total Demand Distortion
TODD = Total Odd Demand Distortion
TEDD = Total Even Demand Distortion
TH = Total Harmonic in RMS, excluding Fundamental
THD = Total Harmonic Distortion
TOHD = Total Odd Harmonic Distortion
TEHD = Total Even Harmonic Distortion
VM = Virtual Meter
WF = Waveform
WFR = Waveform Recorder
Udin = Declared input voltage - Value obtained from the declared supply voltage by a transducer ratio
Usr = Sliding Reference Voltage

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Chapter 1 Introduction
This manual explains how to use the PMC-592 MCPM Multi-Circuit Power Monitor.
This chapter provides an overview of the PMC-592 and summarizes many of its key features.
1.1 Overview
The PMC-592 MCPM is the ultimate solution for PDU, LVDB and Load Center application that require
multi circuit monitoring. Housed in a compact metal enclosure, the PMC-592 is perfectly suited for
applications that require high density metering. The PMC-592 features quality construction with
multifunction and high-accuracy measurements, two Mains Inputs (each with 3 Voltage and 4 Current
Inputs), up to 84 Branch Circuit Inputs and an optional 7” Touch-Screen HMI. The PMC-592 comes
standard with two Digital Inputs or optionally four Digital Inputs for status monitoring, two Relay
Outputs for control or alarming as well as two RTD Inputs for temperature measurements. The standard
SOE Log records all Setup changes, Setpoint alarms and DI/DO operations in 1ms resolution. With
Ethernet and dual RS-485 as standard feature supporting Modbus RTU/TCP as well as SNMP, the PMC-
592 becomes a vital component of an intelligent, multifunction monitoring solution for Data Center and
Utility applications.
Typical Applications
Data Center PDUs
Clean room LVDB (Low-Voltage Distribution Board)
Load Center Monitoring
Ring Main Unit Metering
Motor Control Center metering
Commercial & Residential LV High-Density Multi-Circuit monitoring
The above are just a few of the many applications. Contact CET Technical Support should you require
further assistance with your application.
1.2 Features
Ease of Use
Status LEDs - Run, Fault, P1 and P2 (Comm. Activities)
Self-Diagnostic function
Password-protected setup via its built-in Web Interface or optional HMI Display
Surface Mount
Dual Mains Inputs
3-Ø Voltage Inputs for 120VLN/208VLL, 220-240VLN/380-415VLL and 277VLN/480VLL systems
4-Ø Current Inputs for 5A or 1A CT, Starting current at 0.3% In
Branch CT Inputs
100A Solid-Core CT Strip for new PDU installations
Optional 5A Solid-Core CT Strip for interfacing with standard external CTs with 5A secondary for
LVDB/Load Center applications
Supported CT Strips include 21x100A, 21x10A, 12x100A or 12x10A
100A, 200A, 400A and 800A Split-Core CTs for retrofit applications