CET PMC-630 Series User manual

PMC-630 Series
Advanced Multifunction Meter
User Manual
Version: V3.0A
06/12/2012
Ceiec Electric Technology

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Ceiec Electric Technology
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 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 ............................................................................................................................. 8
1.1 Overview ....................................................................................................................................8
1.2 Features......................................................................................................................................8
1.3 PMC-630 series’ application in Power and Energy Management Systems...............................12
1.4 Getting more information ........................................................................................................12
Chapter 2 Installation .............................................................................................................................13
2.1 Appearance ..............................................................................................................................13
2.2 Unit Dimensions .......................................................................................................................14
2.3 Mounting..................................................................................................................................14
2.4 Wiring Connections..................................................................................................................15
2.4.1 3-phase 4-wire Wye Direct Connection ........................................................................15
2.4.2 3-phase 4-wire Wye with 3PTs and 3CTs.......................................................................16
2.4.3 3-phase 3-wire Grounded Wye Direct Connection .......................................................16
2.4.4 3-phase 3-wire Grounded Wye with 3PTs and 3CTs......................................................17
2.4.5 3-phase 3-wire Open Delta Direct Connection .............................................................17
2.4.6 3-phase 3-wire Open Delta with 2PTs and 3CTs............................................................18
2.4.7 3-phase 3-wire Open Delta with 2PTs and 2CTs............................................................18
2.5 Communications Wiring...........................................................................................................19
2.5.1 RS485 Port.....................................................................................................................19
2.5.2 Profibus Port .................................................................................................................19
2.6 Digital Input Wiring ..................................................................................................................19
2.7 Digital Output Wiring ...............................................................................................................20
2.8 Pulse Output Wiring.................................................................................................................20
2.9 I residual Wiring .......................................................................................................................20
2.10 Analog Input Wiring ...............................................................................................................20
2.11 Analog Output Wiring ............................................................................................................21
2.12 Power supply Wiring ..............................................................................................................21
2.13 Chassis Ground Wiring ...........................................................................................................21
Chapter 3 Front Panel.............................................................................................................................22
3.1 Display Screen Types ................................................................................................................22
3.1.1 LCD Testing....................................................................................................................22
3.1.2 LCD Display Areas..........................................................................................................23
3.1.3 Peak Demand Display....................................................................................................24
3.1.4 Data Display ..................................................................................................................25
3.2 Setup Configuration via the Front Panel ..................................................................................28
3.2.1 Functions of buttons .....................................................................................................28
3.2.2 Setup Menu ..................................................................................................................29
3.2.3 Front Panel Setup Parameters ......................................................................................30
Chapter 4 Applications ...........................................................................................................................34
4.1 Inputs and Outputs...................................................................................................................34
4.1.1 Digital Inputs .................................................................................................................34
4.1.2 Digital Outputs ..............................................................................................................34

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4.1.3 Energy Pulse Outputs....................................................................................................35
4.1.4 I residual Input ..............................................................................................................35
4.1.5 Analog Input..................................................................................................................36
4.1.6 Analog Output...............................................................................................................36
4.2 Power and Energy ....................................................................................................................36
4.2.1 Phase Angle...................................................................................................................36
4.2.2 Energy ...........................................................................................................................37
4.2.3 Demand.........................................................................................................................37
4.2.4 TOU (PMC-630B and PMC-630C) ..................................................................................38
4.3 Setpoints ..................................................................................................................................38
4.3.1 Control Setpoints ..........................................................................................................38
4.3.2 Digital Input Setpoints...................................................................................................40
4.3.3 I residual Setpoints........................................................................................................40
4.3.4 Transient Setpoints (PMC-630C) ...................................................................................41
4.4 Logging .....................................................................................................................................41
4.4.1 Peak Demand Log..........................................................................................................41
4.4.2 Max/Min Log.................................................................................................................42
4.4.3 Data Recorder (DR) Log (PMC-630B and PMC-630C)....................................................43
4.4.4 SOE Log .........................................................................................................................44
4.5 Power Quality...........................................................................................................................44
4.5.1 Harmonics .....................................................................................................................44
4.5.2 Unbalance .....................................................................................................................45
4.5.3 Waveform Recording (PMC-630C only).........................................................................45
4.5.4 Waveform Capture (PMC-630C only)............................................................................45
Chapter 5 Modbus Register Map............................................................................................................47
5.1 Basic Measurements ................................................................................................................48
5.2 Energy Measurements .............................................................................................................50
5.3 Pulse Counter ...........................................................................................................................52
5.4 Harmonic Measurements.........................................................................................................52
5.5 Demand....................................................................................................................................53
5.6 Max/Min Value per Demand Period.........................................................................................54
5.7 Peak Demand Log.....................................................................................................................56
5.8 Max/Min Log ............................................................................................................................57
5.8.1 Max Log of This Month .................................................................................................57
5.8.2 Min Log of This Month..................................................................................................58
5.8.3 Max Log of Last Month .................................................................................................59
5.8.4 Min Log of Last Month ..................................................................................................60
5.9 Setup Parameters .....................................................................................................................61
5.10 Data Recorder Setup Parameters (PMC-630B and PMC-630C) ..............................................65
5.11 Waveform Recorder Log (PMC-630C only).............................................................................67
5.12 Waveform Capture Log (PMC-630C only)...............................................................................67
5.13 SOE Log...................................................................................................................................68
5.14 Time .......................................................................................................................................68
5.15 DO Control..............................................................................................................................69

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5.16 Meter Information..................................................................................................................70
5.17 Data Format............................................................................................................................71
5.17.1 Peak Demand Data Structure......................................................................................71
5.17.2 Max/Min Data Structure .............................................................................................72
5.17.3 Digital Input Setpoint Data Structure..........................................................................72
5.17.4 I residual Setpoint Data Structure...............................................................................72
5.17.5 Control Setpoint Data Structure..................................................................................73
5.17.6 TOU Profile Data Structure..........................................................................................74
5.17.7 Data Recorder Log Data Structure ..............................................................................75
5.17.8 Waveform Recorder Data Structure............................................................................76
5.17.9 SOE Log Data Structure ...............................................................................................76
Revision History ............................................................................................................................... 77
Appendix A - Data Recorder Parameters .......................................................................................... 78
Appendix B - Event Classification ..................................................................................................... 81
Appendix D - Residual Current Sensor.............................................................................................. 88
Appendix E - Standards Compliance................................................................................................. 90
Appendix F - Ordering Guide............................................................................................................ 91
Contact us........................................................................................................................................ 92

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Chapter 1 Introduction
This manual explains how to use the PMC-630 Series Advanced Multifunction Meter. Throughout
the manual the term “meter”generally refers to all models. Differences between models are
indicated with the appropriate model number.
This chapter provides an overview of the PMC-630 series meter and summarizes many of its key
features.
1.1 Overview
The PMC-630 Series Advanced Multifunction Meter is CET’s latest offer for the low, medium and high
voltage power/energy metering market. Housed in an industry-standard DIN form factor measuring
96mmx96mmx125mm, the PMC-630 is perfectly suited for utility, industrial or commercial
applications. The meter features quality construction with metal enclosure, multifunction and
high-accuracy measurements, transient detection and waveform recording capabilities, extensive I/O
and communication configurations, and an easy-to-read, back-lit LCD display, capable of displaying
3-phase measurements at once. The meter comes standard with six Digital Inputs for status
monitoring and two Digital Outputs for control or alarming applications. Further, the PMC-630
optionally provides two additional Digital Outputs, an I residual Input or an Analog Input, and an
Analog Output. The standard SOE Log records all setup changes, DI and Setpoint status changes, and
DO operations in 1ms resolution. With the standard RS485 port and Modbus protocol support, the
PMC-630 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® iEMS Integrated Energy Management System.
The PMC-630 is available in three models: PMC-630A, PMC-630B and PMC-630C. Following is a list
of typical applications for the PMC-630:
Analog meter replacement
Low, medium and high voltage applications
Industrial and commercial metering
Substation, building and factory automation
I residual monitoring
Extensive logging capability with 2MB on-board memory
Power quality monitoring and waveform recording
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
Large, backlit, easy to read LCD display with wide viewing angle
Password-protected setup via front panel or free PMC Setup software
Easy installation with mounting slide bar, no tools required

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Basic Measurements
3-phase voltage, current , I4, frequency and power measurements
Bi-directional energy measurements
TOU metering that can accommodate 4 tariff rates, 6 seasons and 1 daily profile with 10 periods
Power Quality
Voltage and Current Unbalance
THD, TOHD, TEHD and K-Factor
Individual harmonics up to 31st on-board
WF Capture at 128 samples/cycle for harmonics analysis up to 63rd
WF Recording of all Voltage and Current inputs at 16 samples/cycle for 12 cycles with 3 pre-fault
cycles
I residual ALARM and TRIP protection functions
Sliding Window Demands
3-phase voltage, current, power, PF, Frequency, V and I Unbalance, and THD
Max/Min values per demand interval
Peak Demands for This Month and Last Month
SOE Log
64 events time-stamped to ±1ms resolution
Setup changes, Setpoint events and I/O operations
Max/Min Log
Voltage, Current, Frequency, kW, kvar, kVA, Power Factor, Unbalance, VTHD and ITHD of This
Month and Last Month
Data Recorders
16 Data Recorder Logs of 16 parameters each for real-time measurements, harmonics, interval
energy, demand, ….etc
Recording interval from 1s to 40 days
Configurable depths and recording offsets
2MB log memory
Setpoints
9 user programmable setpoints with extensive list of monitoring parameters
Configurable thresholds and time delays
WF Recording, Data Recorder and DO trigger
Transient Voltage and Current setpoints
Digital Inputs
6 channels, volts free dry contact, 24VDC internally wetted
External status monitoring with programmable debounce
Pulse counting with programmable weight for each channel for collecting WAGES information
1000Hz sampling
Digital Outputs
Up to a maximum of 4 channels
Form A Mechanical relays –2 or 4 channels
·DO1 is reserved for I residual ALARM if present AND enabled
·DO2 is reserved for I residual TRIP if present AND enabled

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·DO3 and DO4 are available for general purpose control
Form A SS relays –2 optional channels for energy pulsing applications
·DO3 is reserved for kWh pulsing
·DO4 is reserved for kvarh pulsing
I residual Input (Optional)
Requires an optional, external Zero Sequence CT (1A nominal)
Two levels of alarm –ALARM and TRIP. Each alarm level:
·Can be enabled individually
·Has its own programmable threshold and time delay
·Log an SOE event AND trigger a dedicated DO when activated
Analog Input (Optional)
0-20 / 4-20mA DC input
Can be used to measure external transducer signal
Programmable zero and full scales
Analog Output (Optional)
0-20 / 4-20mA DC output
Can be “keyed” to any measured quantity
Programmable zero and full scales
Communications
Port 1 (standard) and Port 2 (optional)
Optically isolated RS485 port
Baud rate from 1200 to 19200bps
Modbus RTU protocol
Profibus (optional)
Auto baud from 9600 bps to 12 Mbps
Profibus-DP protocol
Real-time clock
6ppm battery-backed real-time clock (<0.5s per day)
System Integration
Supported by our PecStar® iEMS and iPQMS
Easy integration into other Automation or SCADA systems via Modbus RTU and Profibus-DP
protocol