CET PMC-53 Series User manual

PMC-53 Series
Intelligent Multifunction Meter
User Manual
Version: V5.2A
02/07/2012
Ceiec Electric Technology

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This manual may not be reproduced in whole or in part by any means without the express
written permission from Ceiec 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 the 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
Ceiec 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
Chapter 1 Introduction ............................................................................................................................7
1.1 Overview ....................................................................................................................................7
1.2 Features......................................................................................................................................7
1.3 PMC-53 series’ application in Power and Energy Management Systems...................................9
1.4 Getting more information ........................................................................................................10
Chapter 2 Installation ............................................................................................................................11
2.1 Appearance ..............................................................................................................................11
2.2 Unit Dimensions .......................................................................................................................12
2.3 Mounting..................................................................................................................................12
2.4 Wiring connections ..................................................................................................................13
2.4.1 3-phase 4-wire Wye Direct Connection ........................................................................13
2.4.2 3-phase 4-wire Wye with 3PTs and 3CTs.......................................................................14
2.4.3 3-phase 3-wire Open Delta Direct Connection .............................................................14
2.4.4 3-phase 3-wire Open Delta with 2PTs and 3CTs............................................................15
2.4.5 3-phase 3-wire Open Delta with 2PTs and 2CTs............................................................15
2.5 Communications Wiring...........................................................................................................16
2.6 Digital Input Wiring ..................................................................................................................16
2.7 Digital Output Wiring ...............................................................................................................16
2.8 Pulse Output Wiring.................................................................................................................17
2.9 I residual Input Wiring..............................................................................................................17
2.10 Temperature Input Wiring......................................................................................................17
2.11 Power Supply Wiring..............................................................................................................17
Chapter 3 Front Panel ............................................................................................................................18
3.1 LCD Display...............................................................................................................................18
3.1.1 LCD Testing....................................................................................................................18
3.1.2 LCD Display Areas..........................................................................................................18
3.1.3 Peak Demand Display....................................................................................................20
3.2 LED Indicators...........................................................................................................................20
3.3 Display Screen Types ................................................................................................................20
3.3.1 Default Screen...............................................................................................................21
3.3.2 Data Display ..................................................................................................................21
3.4 Setup Configuration via the Front Panel ..................................................................................22
3.4.1 Functions of buttons .....................................................................................................22
3.4.2 Reset the Alarm LED and Buzzer ...................................................................................23
3.4.3 Setup Menu ..................................................................................................................24
3.4.4 Configuration ................................................................................................................25
Chapter 4 Applications ..........................................................................................................................30
4.1 Inputs and Outputs...................................................................................................................30
4.1.1 Digital Inputs .................................................................................................................30
4.1.2 Digital Outputs ..............................................................................................................30
4.1.3 Energy Pulse Outputs....................................................................................................31
4.1.4 I residual Input ..............................................................................................................31

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4.1.5 Temperature Input........................................................................................................32
4.2 Power and Energy ....................................................................................................................32
4.2.1 Voltage and Current Phase Angles ................................................................................32
4.2.2 Energy ...........................................................................................................................32
4.2.3 Demands .......................................................................................................................33
4.3 Setpoints ..................................................................................................................................33
4.3.1 Control Setpoints ..........................................................................................................33
4.3.2 Digital Input Setpoints...................................................................................................34
4.3.3 I residual Setpoints........................................................................................................35
4.3.4 Temperature Setpoint ...................................................................................................36
4.4 SOE ...........................................................................................................................................36
4.5 Power Quality...........................................................................................................................37
4.5.1 Harmonics .....................................................................................................................37
4.5.2 Unbalance .....................................................................................................................37
Chapter 5 Modbus Register Map...........................................................................................................38
5.1 Basic Measurements ................................................................................................................38
5.2 Energy Measurements .............................................................................................................40
5.3 Peak Demands..........................................................................................................................41
5.4 Harmonic Measurements.........................................................................................................41
5.5 Setup Parameters .....................................................................................................................42
5.6 SOE Log.....................................................................................................................................44
5.7 Time .........................................................................................................................................46
5.8 DO Control................................................................................................................................47
5.9 Meter Information....................................................................................................................47
Revision History .....................................................................................................................................49
Appendix A Technical Specifications .....................................................................................................50
Appendix B Residual Current Sensor (Zero Sequence CT) ....................................................................52
Appendix C Temperature Sensor ...........................................................................................................54
Appendix D Standards Compliance ....................................................................................................... 55
Appendix E Ordering Guide ...................................................................................................................56
Contact us ..............................................................................................................................................56

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Chapter 1 Introduction
This manual explains how to use the PMC-53 Series Intelligent Multifunction Meter. Throughout the
manual the term “meter” generally refers to all models. Differences between the models are
indicated with the appropriate model number.
This chapter provides an overview of the PMC-53 series meter and summarizes many of its key
features.
1.1 Overview
The PMC-53 Series Intelligent Multifunction Meter is CET’s latest offer for the low-cost digital
power/energy metering market. Housed in an industry standard DIN form factor measuring
96mmx96mmx75mm, it is perfectly suited for industrial, commercial and utility metering applications.
The PMC-53 features quality construction, multifunction measurements and a large, backlit, easy to
read LCD display. Compliance with the IEC 62053-22 Class 0.5S kWh Accuracy Standard, it is a cost
effective replacement for analog instrumentation, capable of displaying 3-phase measurements at
once. It optionally provides two Digital Inputs for status monitoring and two Digital Outputs for
control, alarm or energy pulsing applications. Further, it has optional inputs for I residual as well as
RTD temperature measurements for fire alarm monitoring, transformer temperature monitoring or
other applications. The standard SOE Log records all setup changes, DI/Setpoint status changes and
DO operations in 1ms resolution. With the standard RS485 port and Modbus protocol support, the
PMC-53 becomes a vital component of an intelligent, multifunction monitoring solution for any Power
and Energy Management systems.
You can setup the meter through its front panel or via our free PMC Setup software. The meter is
also supported by our PecStar® Integrated Energy Management System.
The PMC-53 is available in three models: PMC-53V, PMC-53I and PMC-53M. Following is a list of
typical applications for the PMC-53:
Analog meter replacement
Low and medium voltage applications
Industrial and commercial panel metering
Substation, factory and building automation
Sub-metering, cost allocation
Residual Current and Temperature monitoring
Contact CET Technical Support should you require further assistance with your application.
1.2 Features
Enhanced Measurements (Firmware Version V1.20.01 or later)
Neutral Current, Displacement PF
Voltage and Current Unbalance, THD and K-Factor
kW Total, kvar Total, kVA Total and Current Demands/Peak Demands
Voltage and Current Phase Angles

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Ease of use
Large, backlit, easy to read, 5-line LCD display with wide viewing angle
Password-protected setup via front panel or free PMC Setup software
Easy installation with mounting clips, no tools required
Built in alarm buzzer for optional I residual and Temperature alarms
Setpoints
6 user programmable setpoints
Configurable thresholds, time delays and DO triggers
SOE Log
32 events time-stamped to ±1ms resolution
Setup changes, Setpoint and DI status changes and DO operations
Communications
Optically isolated RS485 port
Selectable baud rate from 1200 bps to 19,200 bps
Modbus RTU protocol
System Integration
Supported by our PecStar® Integrated Energy Management System
Easy integration into other Automation or SCADA systems
Optional features
I residual Input (Residual Current)
Requires an optional, external Zero Sequence CT (1A nominal)
Two levels of alarm –ALARM and TRIP. Each alarm level:
Can be enabled individually
Programmable threshold and time delay
Logs an SOE event, sounds the alarm buzzer AND triggers a dedicated DO when activated
RTD Temperature Input
Requires an optional, external RTD temperature probe
Programmable threshold and time delay
Logs an SOE event, sounds the alarm buzzer AND triggers a dedicated DO when activated
Digital Inputs and Outputs
Digital Inputs –2 volts free dry contact, 24VDC internally wetted
Digital Outputs –2 Form A DO (mechanical) or Solid State (SS) relays
2 DO relays
DO1 is for I residual or Temperature ALARM output if present AND enabled
DO2 is for I residual TRIP output if present AND enabled
2 SS relays for kWh and kvarh pulsing

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Models and Measurements
Measurements
Models
Standard
PMC-53V
PMC-53I
PMC-53M
VLN and VLL per phase and Avg
■
■
Current per phase and Avg
■
■
Neutral Current*
■
Voltage and Current phase angles*
■
Frequency
■
■
kW, kvar, kVA per phase and Total
■
PF per phase and Total
■
Displacement PF per phase*
■
kWh, kvarh Import and Export
■
kVAh Total
■
Demands and Peak Demands*
■
Voltage and Current Unbalance*
■
Voltage and Current THD*
■
K-Factor*
■
RS485 / Modbus Protocol
■
■
■
LED Pulse Outputs
■
Optional Features
I residual Input
1
RTD Temperature Input
1
DI
2
2
2
DO or SS Relay
2
2
2
* Available in Firmware Version V1.20.01 or later
1.3 PMC-53 series’application in Power and Energy Management Systems
The PMC-53 can be used to monitor Wye or Delta connected power system. Modbus
communications allow real-time data, events, DI status and other information to be transmitted across
a RS485 network to an Integrated Energy Management system such as PecStar®.

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1.4 Getting more information
Additional information is available from CET via the following sources:
Visit www.ceiec-electric.com
Contact your local representative
Contact CET directly via email or telephone