CET PMC-53A-E User manual

1
PMC-53A-E
Intelligent Multifunction Meter
User Manual
Version: V1.0A
March 8, 2019

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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. 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

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.

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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Glossary
AI/AO =Analog Input/Output
CT =Current Transformer
DI/DO =Digital Input/Output
DMD =Demand
DR =Data Recorder
FIFO =First In First Out
HTTP =Hyper Text Transfer Protocol
I4 =Measured Neutral Current
In =Calculated Neutral Current
IR or Ir =Residual Current
MB =Mega Byte
RMS =Root Mean Square
PAR =Peak to Average Ratio
PF =Power Factor
PT =Power Transformer
SNTP =Simple Network Time Protocol
SMTP =Simple Mail Transfer Protocol
SOE =Sequence of Events
TDD =Total Demand Distortion
TFTP =Trivial File Transfer Protocol
THD =Total Harmonics Distortion
TOHD =Total Odd Harmonics Distortion
TEHD =Total Even Harmonics Distortion
TOU =Time of Use
Ull =Line-to-Line Voltage
Uln =Line-to-Neutral Voltage
WAGES =Water, Air, Gas, Electricity, Steam

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Table of Contents
Chapter 1 Introduction.............................................................................................................................1
1.1 Overview ....................................................................................................................................1
1.2 Features......................................................................................................................................1
1.3 PMC-53A-E application in Power and Energy Management Systems ........................................3
1.4 Getting more information ..........................................................................................................3
Chapter 2 Installation ...............................................................................................................................4
2.1 Appearance ................................................................................................................................4
2.2 Unit Dimensions .........................................................................................................................5
2.3 Terminal Dimensions..................................................................................................................5
2.4 Residual Current CT Dimensions ................................................................................................6
2.4.1 Solid Core CTs..................................................................................................................6
2.4.2 Split Core CTs...................................................................................................................7
2.5 Mounting....................................................................................................................................8
2.6 Wiring connections ....................................................................................................................8
2.6.1 3-Phase 4-Wire (3P4W) Wye Direct Connection with 3CTs or 4CTs................................9
2.6.2 3-Phase 4-Wire (3P4W) Wye with 3PTs and 3CTs or 4CTs...............................................9
2.6.3 3-Phase 3-Wire (3P3W) Direct Delta Connection with 3CTs .........................................10
2.6.4 3-Phase 3-Wire (3P3W) Direct Delta Connection with 2CTs .........................................10
2.6.5 3-Phase 3-Wire (3P3W) Delta with 2PTs and 3CTs........................................................10
2.6.6 3-Phase 3-Wire (3P3W) Delta with 2PTs and 2CTs........................................................11
2.6.7 1-Phase 3-Wire (1P3W) Direct Connection with 2CTs ..................................................11
2.6.8 1-Phase 2-Wire, Uln (1P2W-Uln) Direct Connection with 1CT......................................11
2.6.9 1-Phase 2-Wire, Ull (1P2W-Ull) Direct Connection with 1CT ........................................12
2.7 Communications Wiring...........................................................................................................12
2.7.1 Ethernet Port (10/100BaseT) ........................................................................................12
2.7.2 RS485 Port.....................................................................................................................12
2.8 Digital Input Wiring ..................................................................................................................12
2.9 Digital Output Wiring ...............................................................................................................13
2.10 Pulse Output Wiring...............................................................................................................13
2.11 Analog Input Wiring ...............................................................................................................13
2.12 Residual Current (Ir) Wiring....................................................................................................14
2.13 Power Supply Wiring ..............................................................................................................14
Chapter 3 User Interface ........................................................................................................................15
3.1 Front Panel ...............................................................................................................................15
3.1.1 Front Panel Buttons ......................................................................................................15
3.1.2 Data Display ..................................................................................................................16
3.1.3 Setup Configuration via the Front Panel .......................................................................20
3.2 Web Interface...........................................................................................................................28
3.2.1 Setting PC's IP Address..................................................................................................28
3.2.2 Configure PMC-53A-E’s IP Address ...............................................................................29
3.2.3 Accessing the Web Interface.........................................................................................29
3.2.4 Overview.......................................................................................................................31

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3.2.5 Detailed Description .....................................................................................................31
Chapter 4 Applications ...........................................................................................................................38
4.1 Inputs and Outputs ..................................................................................................................38
4.1.1 Digital Inputs.................................................................................................................38
4.1.2 Digital Outputs..............................................................................................................38
4.1.3 Energy Pulse Outputs....................................................................................................39
4.1.4 Analog Input..................................................................................................................39
4.2 Power and Energy ....................................................................................................................39
4.2.1 Basic Measurements.....................................................................................................39
4.2.2 Energy Measurements..................................................................................................40
4.2.3 Interval Energy Measurements.....................................................................................40
4.2.4 Demand Measurements ...............................................................................................40
4.3 Power Quality...........................................................................................................................41
4.3.1 Phase Angles .................................................................................................................41
4.3.2 Unbalance & Sequence Components ...........................................................................41
4.3.3 Harmonics.....................................................................................................................41
4.4 Setpoints ..................................................................................................................................43
4.5 Logging .....................................................................................................................................45
4.5.1 Max/Min Log.................................................................................................................45
4.5.2 Peak Demand Log .........................................................................................................46
4.5.3 Monthly Energy Log ......................................................................................................46
4.5.4 Daily and Monthly Freeze Log.......................................................................................47
4.5.5 SOE Log .........................................................................................................................47
4.5.6 Data Recorder (DR) Log.................................................................................................47
4.6 Time of Use (TOU) ....................................................................................................................48
4.7 Communications ......................................................................................................................49
4.7.1 SNTP..............................................................................................................................49
4.7.2 SMTP.............................................................................................................................50
4.7.3 Ethernet Gateway .........................................................................................................51
4.8 Diagnostics ...............................................................................................................................52
4.8.1 Voltage Phase Loss........................................................................................................53
4.8.2 Current Phase Loss........................................................................................................53
4.8.3 Phase Reversal ..............................................................................................................53
Chapter 5 Modbus Register Map............................................................................................................54
5.1 Basic Measurements ................................................................................................................54
5.2 Energy Measurements .............................................................................................................56
5.2.1 3-Phase Total Energy Measurements............................................................................56
5.2.2 Phase A (L1) Energy Measurements .............................................................................57
5.2.3 Phase B (L2) Energy Measurements..............................................................................58
5.2.4 Phase C (L3) Energy Measurements..............................................................................59
5.2.5 Interval Energy Measurements.....................................................................................59
5.3 DI Pulse Counters .....................................................................................................................60
5.4 Power Quality Measurements..................................................................................................60
5.4.1 Basic PQ Measurements ...............................................................................................60

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5.4.2 Current Harmonic Measurements ................................................................................60
5.4.3 Voltage Harmonic Measurements ................................................................................61
5.5 Demands ..................................................................................................................................61
5.5.1 Present Demands..........................................................................................................61
5.5.2 Predicted Demands.......................................................................................................61
5.5.3 Peak Demand Log of This Month (Since Last Reset) .....................................................61
5.5.4 Peak Demand Log of Last Month (Before Last Reset) ...................................................62
5.5.5 Demand Data Structure ................................................................................................62
5.6 Max/Min Log ............................................................................................................................63
5.6.1 Max Log of This Month (Since Last Reset) ....................................................................63
5.6.2 Min Log of This Month (Since Last Reset).....................................................................63
5.6.3 Max Log of Last Month (Before Last Reset) ..................................................................64
5.6.4 Min Log of Last Month (Before Last Reset)...................................................................65
5.6.5 Max/Min Log Structure.................................................................................................66
5.7 Monthly Energy Log .................................................................................................................66
5.8 Daily and Monthly Freeze Logs.................................................................................................67
5.8.1 Daily Freeze Log ............................................................................................................67
5.8.2 Monthly Freeze Log.......................................................................................................67
5.9 SOE Log.....................................................................................................................................68
5.10 Data Recorder Log ..................................................................................................................72
5.11 Device Setup...........................................................................................................................72
5.11.1 Basic Setup Parameters...............................................................................................72
5.11.2 I/O Setup.....................................................................................................................75
5.11.3 Communication Setup Parameters .............................................................................75
5.11.4 Setpoints Setup...........................................................................................................75
5.11.5 Data Recorder Setup ...................................................................................................77
5.12 TOU Setup ..............................................................................................................................78
5.12.1 Basic............................................................................................................................78
5.12.2 Season.........................................................................................................................78
5.12.3 Daily Profile.................................................................................................................79
5.12.4 Alternate Days.............................................................................................................81
5.13 Time........................................................................................................................................81
5.14 Remote Control ......................................................................................................................82
5.15 Clear/Reset Control................................................................................................................82
5.16 Meter Information..................................................................................................................83
Appendix A Data Recorder Parameter List .............................................................................................85
Appendix B Data Recorder Default Settings ...........................................................................................86
Appendix C BACNet MSTP Implementation ...........................................................................................87
1) Basic Information ....................................................................................................................87
2) Device Objects ........................................................................................................................87
3) Analog Input Objects (PMC-53A-E’s Real-Time Parameters) ..................................................88
4) Analog Value Objects (PMC-53A-E’s Basic Setup Registers)....................................................90
5) Binary Input Objects (PMC-53A-E’s Digital Inputs) .................................................................90
6) Binary Output Objects (PMC-53A-E’s Digital Outputs) ...........................................................90

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7) Additional Front Panel Setup Parameters for BACnet MS/TP .................................................91
Appendix D DNP Profile..........................................................................................................................92
Appendix E Technical Specifications.....................................................................................................100
Appendix F Standards Compliance.......................................................................................................102
Appendix G Ordering Guide .................................................................................................................103
Contact us.............................................................................................................................................104

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Chapter 1 Introduction
This manual explains how to use the PMC-53A-E Ethernet Multifunction Meter. Throughout the manual
the term “meter” generally refers to all models.
This chapter provides an overview of the PMC-53A-E meter and summarizes many of its key features.
1.1 Overview
The PMC-53A-E Ethernet Multifunction Meter is CET’s latest offer for the digital power/energy metering
market. Housed in a standard DIN form factor measuring 96x96x88mm, it is perfectly suited for
industrial, commercial and utility applications requiring direct Ethernet connectivity. The PMC-53A-E
features quality construction, multifunction measurements and a large, backlit, Dot-Matrix LCD that is
easy to navigate and user friendly. Compliance with the IEC 62053-22 Class 0.5S and ANSI C12.20 Class
0.2 Standards, it is a cost effective replacement for analog instrumentation and is capable of displaying
4 measurements at once. It also optionally provides an I4 input for Neutral Current measurement, one
0/4-20mA Analog Input for measuring external transducers signal as well as an Ir Input for Residual
Current measurement. With a standard 100BaseT Ethernet port and a RS485 port supporting multiple
protocols, the PMC-53A-E can be easily integrated into Energy Management Systems as well as Building
and Utility Automation Systems.
The meter can be setup through its Front Panel, Web Interface or our free PMC Setup software. The
meter is also supported by our PecStar® iEMS Integrated Energy Management System. Following is a list
of typical applications for the PMC-53A-E:
Industrial, Commercial and Utility Substation Metering
Building, Factory and Process Automation
Sub-Metering and Cost Allocation
Energy Management and Power Quality Monitoring
Contact CET Technical Support @ Su[email protected] should you require further assistance with
your application.
1.2 Features
Ease of use
Large, backlit, Dot-Matrix LCD display with wide viewing angle
Intuitive user interface
LED indicators for Energy Pulsing and Communication activities
Password-protected setup via the Front Panel, Web Interface or our free PMC Setup software
Easy installation with mounting clips, no tools required
Basic Measurements
ULN, ULL per phase and Average
Current per phase and Average with calculated Neutral
kW, kvar, kVA, PF per phase and Total
3-Phase Total and Per-phase kWh, kvarh Import/Export/Net/Total and kVAh Total
Frequency
Device Operating Time (Running Hours)
Optional Neutral Current (I4) and Residual Current (Ir) measurements
Advanced Measurements
1-Cycle Real-time U & I Waveform Display @ 1s update
U and I THD, TOHD, TEHD and Individual Harmonics up to 31st
Current TDD, TDD Odd, TDD Even, K-Factor and Crest Factor
U and I Unbalance and Phase Angles
Displacement PF
Fundamental U, I and kW per phase
Total Fundamental kW and Total Harmonic kW
U and I Symmetrical Components

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12 Monthly Energy Logs of kWh/kvarh Import/Export/Total/Net, kVAh, kvarh Q1-Q4
Interval Energy for kWh/kvarh Imp/Exp and kVAh
Demands, Predicted Demands and Peak Demands for kW/kvar/kVA Total and per phase Current
with Timestamp for This Month (or Since Last Reset) and Last Month (or Before Last Reset)
Two TOU schedules, each providing
o12 Seasons
o20 Daily Profiles, each with 12 Periods in 15-minute interval
o90 Holidays or Alternate Days
o8 Tariffs, each providing the following information
·3-Phase Total and Per-phase kWh/kvarh Import/Export, kVAh
·kW/kvar/kVA Max. Demands
Setpoints
9 user programmable Setpoints with extensive list of monitoring parameters including Voltage,
Current, Power, THD, etc.
Configurable thresholds, time delays, DO and Alarm Email triggers
SOE Log
100 events time-stamped to ±1ms resolution
Setup changes, Setpoint and DI status changes and DO triggers
Max/Min Log
Max/Min Log with Timestamp for real-time measurements such as Voltage, Current, In, I4, Ir,
Frequency, kW, kvar, kVA, PF, Unbalance, K-Factor, Crest Factor and THD
Configurable for This Month/Last Month or Since/Before Last Reset
Freeze Logs
60 Daily Freeze Logs for kWh/kvarh/kVAh Total and kW/kvar/kVA Peak Demands
36 Monthly Freeze Logs for kWh/kvarh/kVAh Total and kW/kvar/kVA Peak Demands with
Timestamps.
Data Recorder Log
5 Data Recorders of 16 parameters each for Real-time Measurements, Harmonics, Energy, Demand,
TOU, Pulse Counters, etc.
Recording interval from 1 minute to 40 days
Configurable capacity up to a max. of 1250 days at 15-minute interval for 1 Data Recorder with 6
parameters
Diagnostics
Frequency Out-of-Range, Loss of Voltage / Current
kW Direction per phase and Total, Possible incorrect CT Polarity
Incorrect U & I Phase Sequence
Disconnection of Residual Current Input
Inputs and Outputs
Digital Inputs
o4 channels, volts free dry contact, 24VDC internally wetted
o1000Hz sampling for status monitoring with programmable debounce
oPulse counting with programmable weight for each channel for collecting WAGES (Water,
Air, Gas, Electricity, Steam) information
oTariff switching based on DI status
Digital Outputs (Optional)
o2 Form A mechanical relays for alarming and general purpose control
Pulse Outputs (Optional)
o2 Form A Solid State Relays for kWh and kvarh pulsing
Optional Analog Inputs Module
oI4 Input for Neutral Current measurement
oIr Input for Residual Current measurement (CT not included)
o0/4-20mA DC input with programmable zero and full scales

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Communications
One 100BaseT Ethernet Port with RJ45 connector, supporting Modbus TCP, HTTP, SMTP, SNTP and
TFTP
One optically isolated RS485 port at max. 38,400 bps, supporting selectable protocol for Modbus
RTU, BACnet MS/TP, DNP 3.0 and Ethernet Gateway
Real-time Clock
Battery-backed Real-time Clock with 6ppm accuracy (<0.5s per day)
System Integration
Supported by CET’s PecStar® iEMS and iEEM
Easy integration into Building Automation Systems with BACnet MS/TP or Modbus RTU and Utility
Substation Automation with DNP 3.0
The on-board password protected Web Server allows complete access to its data and supports the
configuration for most of the Setup parameters via a standard web browser.
1.3 PMC-53A-E application in Power and Energy Management Systems
The PMC-53A-E can be used to monitor 3P4W (Wye), 3P3W (Delta), 1P2W-Uln, 1P2W-Ull or 1P3W
connected power system. Modbus communications allow real-time data, DI status and other
information to be transmitted across a RS485 network to an Integrated Energy Management system
such as PecStar®.
Figure 1- 1 Application in Power and Management Systems
1.4 Getting more information
Additional information is available from CET via the following sources:
Visit www.cet-global.com
Contact your local representative
Contact CET directly via email at [e-mail]

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Chapter 2 Installation
2.1 Appearance
Figure 2-1 Front Panel
Figure 2-2 Rear Panel
Caution
Installation of the PMC-53A-E 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.
During the operation of the meter, hazardous voltages are present at the input terminals. Failure
to observe precautions can result in serious or even fatal injury and equipment damage.

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2.2 Unit Dimensions
Figure 2-3 Unit Dimensions
2.3 Terminal Dimensions
Figure 2-4 Terminal Dimensions
Terminal
Terminal Dimensions
Wire Size
Max. Torque
1
Voltage Input
2.6mm x 3.2mm
1.5mm2
5 kgf.cm/M3
(4.3 lb-in)
Power Supply
2
I4 Input, AI, Ir Input
3
RS485, DI, DO
4
Current Input
6.5mm x 6.5mm
1.0mm2 - 2.5mm2
(14AWG - 22AWG)
6.0 kgf.cm/M3
(5.2 lb-in)

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2.4 Residual Current CT Dimensions
2.4.1 Solid Core CTs
CT517203 (160A, Ø=46mm)
Figure 2-5 CT517203 Dimensions
CT517403 (400A, Ø=80mm)
Figure 2-6 CT517403 Dimensions
CT517603 (1000A, Ø=120mm)
Figure 2-7 CT517603 Dimensions

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CT519703 (630A, 220x50mm)
Figure 2-8 CT519703 Dimensions
2.4.2 Split Core CTs
CT553203 (160A, Ø=48mm)
Figure 2-9 CT553203 Dimensions
CT553303 (225A, Ø=68mm)
Figure 2-10 CT553303 Dimensions

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2.5 Mounting
The PMC-53A-E should be installed in a dry environment with no dust and kept away from heat,
radiation and electrical noise source.
Installation steps:
Remove the installation clips from the meter
Fit the meter through a 92mmx92mm cutout as shown in Figure 2-11
Re-install the installation clips and push the clips tightly against the panel to secure the meter
Figure 2-11 Panel Cutout Mounting
2.6 Wiring connections
PMC-53A-E can satisfy almost any three phase power systems. Please read this section carefully before
installation and choose the correct wiring method for your power system. The following Wiring Modes
are supported:
3-Phase 4-Wire (3P4W) Wye Direct Connection with 3CTs or 4CTs
3-Phase 4-Wire (3P4W) Wye with 3PTs and 3CTs or 4CTs
3-Phase 3-Wire (3P3W) Direct Delta Connection With 3CTs
3-Phase 3-Wire (3P3W) Direct Delta Connection with 2CTs
3-Phase 3-Wire (3P3W) Delta with 2PTs and 3CTs
3-Phase 3-Wire (3P3W) Delta with 2PTs and 2CTs
1-Phase 3-Wire (1P3W) Direct Connection with 2CTs
1-Phase 2-Wire, Uln (1P2W-Uln) Direct Connection with 1CT
1-Phase 2-Wire, Ull (1P2W-Ull) Direct Connection with 1CT
Caution
Under no circumstances should the PT secondary be shorted.
Under no circumstances should the CT secondary be open when the CT primary is
energized. CT shorting blocks should be installed to allow for easy maintenance.

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2.6.1 3-Phase 4-Wire (3P4W) Wye Direct Connection with 3CTs or 4CTs
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 2-12 3P4W Direct Connection with 3CTs or 4CTs
2.6.2 3-Phase 4-Wire (3P4W) Wye with 3PTs and 3CTs or 4CTs
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 3P4W.
Figure 2-13 3P4W with 3PTs and 3CTs or 4CTs

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2.6.3 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 2-14 3P3W Direct Connection with 3CTs
2.6.4 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 meter’s rated line voltage input specification. Set the Wiring Mode to 3P3W.
Figure 2-15 3P3W Direct Connection with 2CTs
2.6.5 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 2-16 3P3W Delta with 2PTs and 3CTs

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2.6.6 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 meter’s rated phase voltage input specification. Set the Wiring Mode to 3P3W.
Figure 2-17 3P3W Delta with 2PTs and 2CTs
2.6.7 1-Phase 3-Wire (1P3W) Direct Connection with 2CTs
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 1P3W.
Figure 2-18 1P3W Direct Connection with 2CTs
2.6.8 1-Phase 2-Wire, Uln (1P2W-Uln) Direct Connection with 1CT
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 1P2W, L-N.
Figure 2-19 1P2W Uln Direct Connection with 1CT