CET PMC-680i User Manual

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PMC-680i

Advanced Power Quality Analyzer

User Manual

Version: V0.9A

October 15, 2015

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).

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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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and the correct voltage and current input specifications for your application.

generating lethal voltages and currents with their primary circuits energized.

with the instrument and its associated electrical equipment.

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,

 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

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

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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 ............................................................................................................................... 5

Glossary ........................................................................................................................................... 10

Chapter 1 Introduction .................................................................................................................... 11

1.1 Overview .................................................................................................................................. 11

1.2 Features ................................................................................................................................... 12

1.3 PMC-680i’ application in Power and Energy Management and Analyzer Systems ................. 19

1.4 Getting more information ........................................................................................................ 20

Chapter 2 Installation ...................................................................................................................... 21

2.1 Appearance .............................................................................................................................. 21

2.2 Unit Dimensions ....................................................................................................................... 23

2.3 Mounting ................................................................................................................................. 23

2.4 Wiring Connections .................................................................................................................. 24

2.4.1 3-phase 4-wire Wye Direct Connection ....................................................................... 25

2.4.2 3-phase 4-wire Wye with 3PTs and 4CTs ..................................................................... 25

2.4.3 3-phase 3-wire Grounded Wye Direct Connection ...................................................... 26

2.4.4 3-phase 3-wire Grounded Wye with 3PTs and 3CTs .................................................... 26

2.4.5 3-phase 3-wire Grounded Delta Connection ............................................................... 27

2.4.6 3-phase 3-wire Delta with 2PTs and 3CTs .................................................................... 27

2.4.7 3-phase 3-wire Delta with 2PTs and 2CTs .................................................................... 28

2.5 Communications Wiring .......................................................................................................... 28

2.5.1 Ethernet Port (10/100BaseT) ....................................................................................... 28

2.5.2 RS485 Port .................................................................................................................... 29

2.6 Digital Input Wiring .................................................................................................................. 29

2.7 GPS 1PPS Input wiring .............................................................................................................. 30

2.8 Digital Output Wiring ............................................................................................................... 30

2.9 RO Wiring ................................................................................................................................. 30

2.10 Pulse Output Wiring ............................................................................................................... 31

Chapter 3 User Interface .................................................................................................................. 32

2.11 Power Supply Wiring .............................................................................................................. 31

2.12 Chassis Ground Wiring ........................................................................................................... 31

3.1 Front Panel Interface ............................................................................................................... 32

3.1.1 Display Hierarchy and Menu Tree ................................................................................ 32

3.1.2 Navigating the Front Panel User Interface ................................................................... 34

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3.2 Web Interface .......................................................................................................................... 44

3.2.1 Setting PC's IP Address ................................................................................................. 45

3.2.2 Configure PMC-680i's IP Addresses ............................................................................. 45

3.2.3 Enabling Java Scripting in Google Chrome ................................................................... 46

3.2.4 Web Interface .............................................................................................................. 47

Chapter 4 Applications ..................................................................................................................... 67

4.1 Inputs and Outputs .................................................................................................................. 67

4.1.1 Digital Inputs ................................................................................................................ 67

4.1.2 Relay Outputs and Digital Outputs............................................................................... 69

4.1.3 Energy Pulse Outputs ................................................................................................... 71

4.2 Power, Energy and Demand .................................................................................................... 72

4.2.1 Basic Measurements .................................................................................................... 72

4.2.2 Energy Measurements ................................................................................................. 73

4.2.3 Demands ...................................................................................................................... 73

4.2.4 Time of Use (TOU) ........................................................................................................ 76

4.3 Setpoints .................................................................................................................................. 78

4.4 Power Quality Parameters ....................................................................................................... 81

4.4.1 Power Frequency ......................................................................................................... 81

4.4.2 Magnitude of the Supply Voltage ................................................................................ 81

4.4.3 Flicker ........................................................................................................................... 81

4.4.4 Supply Voltage Dips/Swells and Interruption .............................................................. 82

4.4.5 Voltage Transients ....................................................................................................... 86

4.4.6 Supply Voltage Unbalance ........................................................................................... 86

4.4.7 Harmonics and Interharmonics .................................................................................... 87

4.4.8 Mains Signalling Voltage (MSV) ................................................................................... 89

4.4.9 Voltage Deviation ......................................................................................................... 90

4.4.10 Rapid Voltage Changes (RVC) ..................................................................................... 91

4.4.11 Inrush Current ............................................................................................................ 93

4.4.12 Flagging Concept ........................................................................................................ 96

4.4.13 Disturbance Direction Location .................................................................................. 97

4.4.14 EN50160 Compliance Report ..................................................................................... 97

4.4.15 Disturbance Waveform Recorder (DWR) ................................................................... 98

4.4.16 ITIC/SEMI F47 Curve ................................................................................................. 100

4.5 Data Logging .......................................................................................................................... 101

4.5.1 SOE Log and PQ Log ................................................................................................... 101

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4.5.2 Statistical Data Recorder (SDR) .................................................................................. 103

4.5.3 Data Recorder (DR) .................................................................................................... 103

4.5.4 Max./Min. Log ............................................................................................................ 104

4.5.5 Pst Log ........................................................................................................................ 105

4.5.6 Plt Log ......................................................................................................................... 105

4.5.7 Interval Energy Recorder (IER) ................................................................................... 105

4.5.8 Qualification Rate Log ................................................................................................ 107

4.5.9 Waveform Recorder (WFR) ........................................................................................ 107

4.5.10 SDR Trend ................................................................................................................. 108

4.5.11 PQDIF and COMTRADE Storage ............................................................................... 109

4.5.12 PQ Counters ............................................................................................................. 110

4.6 SMTP (Simple Mail Transfer Protocol) ................................................................................... 111

4.7 Time Synchronization ............................................................................................................ 114

4.7.1 PMC Setup .................................................................................................................. 114

4.7.2 PecStar iEMS .............................................................................................................. 115

4.7.3 SNTP (Simple Network Time Protocol)....................................................................... 115

4.7.4 Modbus ...................................................................................................................... 115

4.7.5 GPS with Time Sync Pulse .......................................................................................... 116

4.7.6 IRIG-B ......................................................................................................................... 116

4.7.7 DI with PPS ................................................................................................................. 117

Chapter 5 Modbus Register Map ................................................................................................... 118

5.1 Basic Measurements .............................................................................................................. 118

5.2 Energy Measurements ........................................................................................................... 125

5.3 DI Pulse Counter .................................................................................................................... 125

5.4 PQ Measurements ................................................................................................................. 126

5.5 Harmonics & Interharmonic Measurements ......................................................................... 129

5.5.1 Harmonic Distortion Measurements ......................................................................... 129

5.5.2 Harmonic Voltage & Current RMS ............................................................................. 131

5.5.3 Individual Total Harmonic .......................................................................................... 133

5.5.4 Harmonic Power ........................................................................................................ 134

5.5.5 Harmonic Angles ........................................................................................................ 135

5.5.6 Harmonic Energy ........................................................................................................ 136

5.5.7 Interharmonics Distortion (IHD) Measurements ....................................................... 137

5.5.8 Interharmonic Voltage & Current RMS ...................................................................... 139

5.6 Demand.................................................................................................................................. 141

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5.6.1 Present Demand ........................................................................................................ 141

5.6.2 Predicted Demand ..................................................................................................... 145

5.6.3 Max. Value per Demand Period ................................................................................. 147

5.6.4 Min. Value per Demand Period .................................................................................. 151

5.6.5 Present Max. .............................................................................................................. 156

5.6.6 Max. of Last Time ....................................................................................................... 156

5.7 Log Register ........................................................................................................................... 157

5.7.1 SOE Log Buffer ............................................................................................................ 157

5.7.2 PQ Log Buffer ............................................................................................................. 158

5.7.3 SDR Log ...................................................................................................................... 159

5.7.4 DR (Data Recorder) Log .............................................................................................. 161

5.7.5 MM Log (Max./Min. Log) ........................................................................................... 164

5.7.6 Pst/Plt Log .................................................................................................................. 165

5.7.7 IER (Interval Energy Recorder) Log............................................................................. 167

5.7.8 EN50160 Log .............................................................................................................. 168

5.7.9 QR (Qualification Rate) Log ........................................................................................ 180

5.7.10 TOU Log .................................................................................................................... 181

5.8 Real-time WFR Register ......................................................................................................... 183

5.9 Device Setup Parameters ....................................................................................................... 184

5.9.1 Communications Setup .............................................................................................. 184

5.9.2 Basic Setup Parameters ............................................................................................. 185

5.9.3 DI Setup ...................................................................................................................... 187

5.9.4 RO/DO Setup .............................................................................................................. 188

5.9.5 SMTP Setup ................................................................................................................ 189

5.9.6 PQ Log Setup .............................................................................................................. 190

5.9.7 PQDIF Setup ............................................................................................................... 193

5.9.8 Demand Setup............................................................................................................ 194

5.9.9 WFR Setup .................................................................................................................. 194

5.9.10 Energy Pulse Setup ................................................................................................... 195

5.9.11 Standard Setpoints Setup ........................................................................................ 196

5.9.12 HS (High-speed) Setpoints Setup ............................................................................. 199

5.9.13 SDR Setup ................................................................................................................. 200

5.9.14 Data Recorder (DR) Setup ........................................................................................ 241

5.9.15 High-speed (HS) DR Setup ........................................................................................ 253

5.9.16 Max./Min. Recorder (MMR) Setup .......................................................................... 257

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5.9.17 Interval Energy Recorder (IER) Setup ....................................................................... 260

5.9.18 EN50160 Setup ......................................................................................................... 261

5.9.19 QR (Qualification Rate) Log ...................................................................................... 263

5.9.20 Trend Log Setup ....................................................................................................... 264

5.9.21 TOU Setup ................................................................................................................ 264

5.9.22 System Setup............................................................................................................ 272

5.10 File Transfer Register ........................................................................................................... 274

5.10.1 File Name ................................................................................................................. 274

5.10.2 Reading File .............................................................................................................. 275

5.10.3 Register Address ...................................................................................................... 275

5.11 Control Setup ....................................................................................................................... 275

5.11.1 RO/DO Control ......................................................................................................... 275

5.11.2 Clear DI/DO .............................................................................................................. 277

5.11.3 Clear/Reset Control .................................................................................................. 278

5.12 Time Registers ...................................................................................................................... 281

5.13 Information .......................................................................................................................... 282

5.13.1 Meter Information ................................................................................................... 282

5.13.2 Device Tag Information ............................................................................................ 284

5.13.2 Circuit Tag Information ............................................................................................ 285

Appendix A - Data ID ...................................................................................................................... 286

DR and SDR Data ID ..................................................................................................................... 286

High-speed DR Data ID ................................................................................................................. 304

Demand Data ID ........................................................................................................................... 305

Appendix B – Event Classification .................................................................................................. 308

Appendix C - Technical Specifications ............................................................................................ 317

Appendix D - Accuracy Specifications ............................................................................................. 319

Appendix E - IEC61000-4-30 Class A Certificate .............................................................................. 320

Appendix F - Ordering Guide .......................................................................................................... 323

Contact us ...................................................................................................................................... 324

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Glossary

1PPS = 1 Pulse Per Second

CET = Ceiec Electric Technology

DI = Digital Input

DMD = Present Demand

DO = Digital Output

DR = Data Recorder

DWR = Disturbance Waveform Recorder

FIFO = First In First Out

Fund. = Fundamental

GB = Giga Byte

GPS = Global Positioning System

HS = High-Speed

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

Hn = nth order Harmonic in RMS

IHn = nth order Interharmonic in RMS

LCD = Liquid Crystal Display

MB = Mega Byte

Pred_DMD = Predicted Demand

Plt = Long-term Flicker

Pst = Short-term Flicker

PQ = Power Quality

RO = Relay Output

RTC = Real Time Clock

SDR = Statistical Data Recorder

SOE = Sequence Of Events

SMTP = Simple Mail Transfer Protocol

SYNC DI = Demand Sync Input

TH = Total Harmonic in RMS, excluding Fundamental

THD = Total Harmonic Distortion

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TOHD = Total Odd Harmonic Distortion

TEHD = Total Even Harmonic Distortion

U0 / I0 = Zero Sequence Voltage / Current

U1 / I1 = Positive Sequence Voltage / Current

U2 / I2 = Negative Sequence Voltage /Current

U0 / I0 Unb = Zero Sequence Voltage / Current Unbalance

U2 / I2 Unb = Negative Sequence Voltage / Current Unbalance

I5 =Ground Current

WF = Waveform

WFR = Waveform Recorder

Dip = Used interchangbly with Sag

Sag = Used interchangbly with Dip

Swell = Temporary increases in RMS value of AC voltage

Transient =Unidirectional impulse of either polarity or a damped oscillatory wave with the first peak occurring in

either polarity

= Half-Cycle RMS Voltage

rms(1/2)

= Declared input voltage - Value obtained from the declared supply voltage by a transducer ratio

din

Usr = Sliding Reference Voltage

= Value of the RMS Current measured over each half period

half cycle rms

Dip Threshold = Voltage magnitude specified for the purpose of detecting the start and end of a voltage dip

Flagged data = For any measurement time interval in which interruptions, dips or swells occur, the measurement

results of all other parameters made during this time interval are flagged

Chapter 1 Introduction

This manual explains how to use the PMC-680i Advanced Power Quality Analyzer.

This chapter provides an overview of the PMC-680i Analyzer and summarizes many of its key features.

1.1 Overview

The PMC-680i is CET’s Advanced Utility PQ Analyzer designed for the compliance monitoring market

as it offers un-surpassed functionality by combining Class 0.2S accuracy and advanced PQ features in a

standard DIN 192 form factor with a high resolution, backlit, color TFT LCD display. The PMC-680i

complies with IEC 62053-22 Class 0.2S, IEC 61000-4-30 Class A, IEC 61000-4-7, IEC-61000-4-15 and

EN50160. Further, it offers a logging capacity with up to 8GB of on-board memory, extensive I/O

with 8xDIs, 4xRO and 4xDOs, GPS Time Sync., dual Ethernet and two RS-485 ports. These features

likely make the PMC-680i the most advanced PQ Analyzer for the Utility market today.

Typical Applications

 PQ monitoring at HV, MV and LV Utility Substations

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 Data Centers, Semiconductor Fabs, Heavy Industries

 7x24 Automated Manufacturing Facilities

 Dips/Swell, Transient, Flicker and Disturbance monitoring

 Mains and critical feeder monitoring

 Substation automation with IEC61850 protocol

 Retrofit applications with Clamp-on CTs

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

Basic Features

 Standard 512 samples/cycle sampling, optional 1024

 4GB on-board log memory, optional 8GB

 Industrial-grade, high-resolution Color TFT LCD @ 640x480

 IEC 62053-22 Class 0.2S kWh metering with Multi-Tariff TOU

 Time Synch. via IRIG-B, SNTP or GPS 1PPS output

 256 setpoints and 16 HS (High-Speed) Setpoints

 Dual 100Base T Ethernet and RS485 ports

 Up to 12 months of daily backup of PQ recordings in PQDIF format

Power Quality Features

 IEC 61000-4-30 Class A Certified by PSL

 IEC 61000-4-7, IEC 61000-4-15 and EN50160 Reporting

 Dips/Swells, Transient, Interruptions, Mains Signalling Voltage (MSV), Rapid Voltage Changes

(RVC) and In-rush Current monitoring

 Disturbance Direction Indicator & Disturbance Waveform Recording

 Harmonic analysis up to 63

on-board and 511th via software

 Fault Capture up to 2,000V peak to peak (400VAC Option)

 Real-time Waveform (WF) Capture, Trending and Statistical Reporting

 Waveform recording in PQDIF and COMTRADE file format that is compatible with the PQ View

software

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Front Panel Display

 Real-time, Harmonic Power and Energy measurements

 Real-time waveforms for 3-phase Voltages and Currents

 Harmonic histogram

 EN50160 Report

 Statistical Trending

 PQ Log with ITIC/SEMI F47 and waveform displays

 SOE Log

 I/O status

 Device configuration

 Diagnostics

Power Quality Metering

PQ Parameters as per IEC 61000-4-30

 Power Frequency

 Magnitude of the Supply Voltage

 Flicker

 Supply Voltage Dips and Swells

 Voltage Interruptions

 Transient Voltages

 Supply Voltage Unbalance

 Voltage Harmonics and Interharmonics

 Mains Signalling Voltage (MSV) on the Supply Voltage

 Rapid Voltage Changes (RVC)

 Measurement of Underdeviation and Overdeviation parameters

Harmonic and Interharmonic measurements

 K-Factor for Current, Crest Factor for Current and Voltage

 U and I THD, TOHD, TEHD

 U and I Phase and Magnitude (RMS and %HD

) from 2nd to 63rd

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 U and I Interharmonics from 0 to 63

 Harmonic kW, kvar, kVA and PF from 2

to 63rd

 Fundamental U, I, kW, kvar, kVA and Displacement PF

 Total harmonic kWh, kvarh Imp./Exp./Net/Total

 Harmonic kWh, kvarh Imp./Exp. from 2

to 63rd

 Fundamental kWh, kvarh Imp./Exp./Net/Total

%HD can be configured as % of Fundamental, % of U/I nominal or % of RMS

Symmetrical Components and Unbalances

 Zero, Positive and Negative Sequence Components

 U and I Unbalance based on Zero and Negative Sequence Components

Transient and Dip/Swell Recording

 Transient recording as short as 40us at 512 samples or 20us at 1024 samples @ 50Hz

 Dip/Swell recording @ 10ms (½ cycle at 50Hz)

 Transient triggers WFR and DWR

 Dip/Swell trigger DO/RO, WFR, WDR, DR and HS DR

 On-board analysis of ITIC/SEMI F47 plot and the captured waveforms

Rapid Voltage Changes

 Programmable detection modes: voltage change between two steady-state or maximum voltage

change

In-rush Current Monitoring

 Monitoring of the ½ cycle RMS Current and capturing of the Current waveforms associated with

events such as motor starting and transformer being energized

Disturbance Direction Indicator

 Determine if a Dip Event is located upstream or downstream

 Pinpoint if the cause of the event is external or internal

Disturbance Waveform Recorder (DWR)

 Disturbance recording of all Voltage (Ua, Ub, Uc, U4 and U5) and Current (Ia, Ib, Ic, I4 and I5) Inputs

 Initial Fault: Up to 35 cycles @ 512 samples/cycle

 Extended Fault: 150 cycles @ 16 samples/cycle

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 Steady State: 300 seconds of 1-cycle RMS recording @ 50Hz

 Post Fault: Up to 15 cycles @ 512 samples/cycle

Waveform Capture (WFC) and Waveform Recorder (WFR)

 Real-time WF Capture @ 128 samples/cycle via front panel display

 WF Recorder with 128~ entries each

 Simultaneous capture of 4-phase Voltage and 5-phase Current inputs

 # of Cycles x Samples/Cycles with programmable # of pre-fault cycles

 10x1024*, 20x512, 40x256

 80x128, 160x64, 320x32, 640x16

 Extended recording for a maximum of 7 consecutive captures

 COMTRADE file format, downloadable from the on-board FTP Server

~256 entries with the 8GB option, * only available for the 1024 sampling option

PQ Event Counters

 Transient, Dip, Swell, Interruption, Rapid Voltage Changes and Mains Signaling Voltage

Metering

Basic Measurements (1-second update)

 3-phase Voltages (U1-U3) and U4

 3-phase Currents (I1-I3), I4 and I5

 3-phase Power, PF, Frequency and Phase Angles

 kWh, kvarh Imp./Exp./Net/Total and kVAh Total

High-speed Measurements

 3-phase Voltage and Current, U4, I4, I5 @ ½ cycle

 Frequency @ 1 cycle

Demands

 3-phase Voltage, Current, Power, PF, U4, I4, I5, Frequency

 Demand synchronization with DI

 Predicted Demands

 Peak Demands for This Month and Last Month, or Before the Last Reset and Since the Last Reset

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 Max./Min. per Demand Period

Multi-Tariff TOU capability

 Two independent sets of TOU Schedules, each supporting

 Up to 12 Seasons

 90 Holidays or Alternate Days and 3 Weekdays

 20 Daily Profiles, each with 12 Periods in 1-minute interval

 8 Tariffs, each providing the following information

o kWh/kvarh Imp./Exp. and kVAh

o kW/kvar Imp./Exp. Peak Demands

o Register Rollover value at 99,999,999,999 kXh

Data, Waveform and Event Recording

Non-Volatile Log Memory

 Standard 4GB, optional 8GB

Interval Energy Recorder

 kWh, kvarh Imp./Exp. and kVAh Total

 Support FIFO

Statistical Data Recorder

 Recording of the Max., Min., Avg. and CP95 for real-time measurements including U, I, Freq.,

Flicker, Harmonics and Unbalances in 16 different recorders

 Recording interval from 1 minute to 60 minutes

 30 days @ 1-minute, 300 days @ 10-minute, 450-day @ 15-minute

 On-board trending via Front Panel display

 PQDIF file format, downloadable from the on-board FTP Server

Data Recorder and HS Data Recorder

 8 Data Recorders of 32 parameters and 4 HS DR of 16 parameters

 Recording interval from 1s to 40 days for Data Recorder

 Recording interval from ½ cycle to 60 cycles for HS Data Recorder

 Programmable sources

 Recording depth fixed at 65535

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 DR supports FIFO or Stop-When-Full mode and HS DR supports Stop-When-Full mode

Max./Min. Log

 Logging of Max./Min. values for real-time measurements such as U, I, kW, kvar, kVA, PF, Freq.,

Unbalance, K-factor, THD

SOE Log

 1024 FIFO events time-stamped to ±1ms resolution

 Setup changes, System events, Setpoint events and I/O operations

PQ Log

 1024 FIFO entries time-stamped to ±1ms resolution

 Transient, Dip/Swell, Disturbance Location, Rapid Voltage Change, etc.

 Record the time and characteristic data of the captured PQ event

Setpoints

PQ Setpoints

 Transient trigger WFR or DWR

 Dip/Swell, Rapid Voltage Changes, Inrush Current and Harmonics trigger DO/RO, DR, HS DR, WFR

or DWR

Control Setpoints

 256 Control Setpoints and 16 HS Setpoints

 Extensive monitoring sources

 Configurable thresholds and time delays

 Trigger DO, DR, HS DR, WFR or DWR

Digital Input Setpoints

 Provides control output actions in response to changes in Digital Input status

 Demand Synchronization

 Trigger DO, DR, HS DR, WFR or DWR

Inputs and Outputs

Digital Inputs

 8 channels, volts free dry contact, 24VDC internally wetted

 1000Hz sampling

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 External status monitoring with programmable debounce

 Pulse counting with programmable weight for each channel for collecting WAGES (Water, Air,

Gas, Electricity, Steam) information

 Demand Synchronization

 Time-Sync via GPS's 1PPS output

Digital Outputs

 8 channels for control, alarming and pulsing applications

 RO1-RO2: Form A Mechanical Relay

 RO3-RO4: Form C Mechanical Relay

 DO1-DO4: Optically Isolated Solid State Relay

Communications

Ethernet Ports (P1, P2)

 Dual 10/100BaseT TCP/IP Ethernet Ports with RJ45 connector

 Maximum of 10 simultaneous IP connections

 Optional 100BaseFX with ST connector

 Protocols

 Modbus TCP

 HTTP, SNTP, SMTP, FTP

 Ethernet Gateway

 IEC61850

 Firmware upgrade via Ethernet port

RS-485 (P3, P4)

 Optically isolated RS485 port with baudrate from 1.2 to 115.2 kbps

 Modbus RTU protocol

 Time Sync. via GPS’s 1PPS or IRIG-B outputs

Time Synchronization

 Battery-backed real-time clock @ 6ppm (≤ 0.5s/day)

 Time Sync. via SNTP, GPS’s 1PPS or IRIG-B outputs

System Integration

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PecStar iEMS

The PMC-680i is supported by CET’s PecStar iEMS software. In addition, the PMC-680i can be easily

integrated into other 3rd party systems because of its support of multiple communications ports as

well as different industry standard protocols

PMC Setup

 Free Setup configuration tool

 Real-time and log display

 Remote control

3rd Party System Integration

 Easy integration into Substation Automation or Utility SCADA systems via Modbus RTU, Modbus

TCP or IEC61850

 The on-board Web Server allows complete access to its data and supports the configuration for

most of the setup parameters via a web browser (Chrome) without the use of any proprietary

software

 The on-board, password protected FTP Server allows logged data in PQDIF or COMTRADE format

to be downloaded without any special software

 The downloaded files can be subsequently viewed using software that supports the industry

standard PQDIF and COMTRADE file formats

1.3 PMC-680i’ application in Power and Energy Management and Analyzer Systems

The PMC-680i can be used to monitor Wye or Delta connected power system. Modbus

communications allow real-time data, events, DI status, Data Logs, Waveform and other information

to be transmitted to an Integrated Energy Management System such as PecStar® iEMS.

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Figure 1-1 Typical Application

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 or telephone

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Chapter 2 Installation

Installation of the PMC-680i 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.

Caution

During the operation of the meter, hazardous voltages are present at the input terminals. Failure to

2.1 Appearance

Figure 2-1 Appearance

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Figure 2-2 Rear Panel

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Front View

Side View

2.2 Unit Dimensions

Figure 2-3 Unit Dimensions

2.3 Mounting

The PMC-680i should be installed in a dry environment with no dust and kept away from heat,

radiation and electrical noise sources.

Installation steps:

 Remove the mounting brackets from the meter

 Fit the meter through a 186mmx186mm cutout as shown in Figure 2-4

 Re-install and tighten the mounting brackets against the panel to secure the meter

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energized. CT shorting blocks should be installed to allow for easy maintenance.

Figure 2-4 Panel Cutout

2.4 Wiring Connections

PMC-680i can satisfy almost any three or four 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 Wye Direct Connection

 3-phase 4-wire Wye with 3PTs and 4CTs

 3-phase 3-wire Grounded Wye Direct Connection

 3-phase 3-wire Grounded Wye with 3PTs and 3CTs

 3-phase 3-wire Grounded Delta Direct Connection

 3-phase 3-wire Delta with 2PTs and 2CTs

Caution

Under no circumstances should the PT secondary be shorted.

Under no circumstances should the CT secondary be open when the CT primary is

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2.4.1 3-phase 4-wire Wye Direct Connection

Please consult the serial number label to ensure that the system phase voltage is less than or equal to

the meter’s voltage input specification. Set the Wiring Mode to Wye.

Figure 2-5 4-Wire Wye, no PTs, 4CTs

2.4.2 3-phase 4-wire Wye with 3PTs and 4CTs

Please consult the serial number label to ensure that the rated PT secondary voltage is less than or

equal to the meter’s voltage input specification.

Set the Wiring Mode to Wye.

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Figure 2-6 4-Wire Wye, 3PTs, 4CTs

2.4.3 3-phase 3-wire Grounded Wye Direct Connection

Please consult the serial number label to ensure that the system phase voltage is less than or equal to

the meter’s voltage input specification.

Set the Wiring Mode to Wye.

Figure 2-7 3-Wire Grounded Wye, Direct Connection

2.4.4 3-phase 3-wire Grounded Wye with 3PTs and 3CTs

Please consult the serial number label to ensure that the rated PT secondary voltage is less than or

equal to the meter’s voltage input specification.

Set the Wiring Mode to Wye.

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Figure 2-8 3-Wire Grounded Wye, 3PTs, 3CTs

2.4.5 3-phase 3-wire Grounded Delta Connection

Please consult the serial number label to ensure that the rated PT secondary voltage is less than or

equal to the meter’s voltage input specification.

Set the Wiring Mode to Delta.

2.4.6 3-phase 3-wire Delta with 2PTs and 3CTs

Figure 2-9 3-Wire Grounded Delta, no PTs, 4CTs

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Please consult the serial number label to ensure that the rated PT secondary voltage is less than or

equal to the meter’s voltage input specification.

Set the Wiring Mode to Delta.

Figure 2-10 3-Wire Delta, 2PTs, 3CTs

2.4.7 3-phase 3-wire 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 voltage input specification.

Set the Wiring Mode to Delta.

2.5 Communications Wiring

2.5.1 Ethernet Port (10/100BaseT)

Figure 2-11 3-Wire Delta, 2PTs, 2CTs

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RJ45 Connector

Meaning

Transmit Data+

Transmit Data-

Receive Data+

4,5,7,8

NC 6 Receive Data-

Table 2-1 RJ45 Connector Pin Description for 10/100BaseT Applications

2.5.2 RS485 Port

The PMC-680i provides up to two RS485 ports and supports the Modbus RTU protocol. Up to 32

devices can be connected on a RS485 bus. The overall length of the RS485 cable connecting all

devices should not exceed 1200m.

If the master station does not have a RS485 communications port, a RS232/RS485 or USB/RS485

converter with optically isolated outputs and surge protection should be used.

The following figure illustrates the RS485 communications connections on the PMC-680i:

Figure 2-12 RS485 Communications Connections

2.6 Digital Input Wiring

The following figure illustrates the Digital Input connections on the PMC-680i:

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Figure 2-13 DI Connections

2.7 GPS 1PPS Input wiring

The Digital Input on the PMC-680i can be used for time synchronization with a GPS 1PPS output.

The following figure illustrates the wiring connections:

Figure 2-14 Time Sync. Connections

2.8 Digital Output Wiring

The following figure illustrates the Digital Output connections on the PMC-680i:

Figure 2-15 DO Connections

2.9 RO Wiring

The following figure illustrates the RO connections on the PMC-680i:

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Figure 2-16 Pulse Output Connections

2.10 Pulse Output Wiring

The following figure illustrates the Pulse Output connections on the PMC-680i:

Figure 2-17 Pulse Output Connections

2.11 Power Supply Wiring

For AC supply, connect the live wire to the L/+ terminal and the neutral wire to the N/- terminal. For

DC supply, connect the positive wire to the L/+ terminal and the negative wire to the N/- terminal.

Figure 2-18 Power Supply Connections

2.12 Chassis Ground Wiring

Connect the G terminal to earth ground.

Figure 2-19 Chassis Ground connection

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Chapter 3 User Interface

3.1 Front Panel Interface

The PMC-680i is equipped with a stunning, 640x480, TFT Color, LCD Display. The following figure

illustrates PMC-680i's Main Display, which is the first screen shown upon device power up.

Figure 3-1 Main Display

3.1.1 Display Hierarchy and Menu Tree

Figure 3-2 Hierarchy of Menu

For the PMC-680i, the display of the measurements is organized in a hierarchy that consists of

Categories, Topics and Pages. There are 10 icons in the Main Display, and each icon represents a

Category. Each Category displays a specific type of information and may have one or more Topics.

Each Topic may provide one or more Pages of measurement information. The Status area indicates

if there are additional Pages of measurement under a particular Topic and how to get there.

The following figure illustrates menu tree of the Front Panel:

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Power On

Metering

Real Time

Fundamental

Power Quality

Phasors

Harmonics

Harmonic Distortion

Harmonic RMS

Harmonic P

Harmonic Q

Harmonic Phase Angle

Waveform

Energy

I/O

Events

Statistics

Setup

Diagnostics

SOE

PQ Log

EN 50160

Max.

Min.

Basic

COMM

RVC

WFR DWR

I/O

Clock Language

Password

Demand Energy

Device Information

Site Information

Interharmonic Distortion

Interharmonic RMS

Total Energy

Harmonic Energy

Demand

TOU

TOU Log

PQ Event Counter

SDR Trend

MSV

Clear

Figure 3-3 Menu Tree

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Buttons

Description

In the Main Display, the four arrow buttons are used to move the cursor between Categories,

which are represented by the different icons. The current cursor position is indicated by the

highlighted Category's description. While inside a Category and under a particular Topic, the

arrow buttons are used to navigate between Pages.

Use or to view more parameters, while use or to backward

or forward.

<Enter>

Enter a Category when pressed.

<Tab>

Move between Topics from left to right.

<Esc>

Return to the previous level.

<Fn>

Press <Fn> and <Enter> to capture current interface.

<Fn> + /

Press this key combination to jump to first or last page.

<Fn> + /

Press this key combination to backward or forward ten pages.

3.1.2 Navigating the Front Panel User Interface

Figure 3-4 Front Panel User Interface

The PMC-680i features a stunning, high resolution, color LCD display with an intuitive graphical user

interface that makes it extremely simple to operate. There are eight buttons located beneath the

LCD display on the front panel: <Enter>, <Tab>, <Fn>, , , , and <Esc>.

Table 3-1 Description of Button in Front Panel

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3.2 Web Interface

The PMC-680i's web interface has been designed specifically to work with Google Chrome. Please

use this link (https://www.google.com/intl/en/chrome/browser/) to download and install Google

Chrome if it's not already installed on the PC.

Table 3-2 Description of each Hierarchy

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The default IP Addresses of the PMC-680i’s two Ethernet Ports are 192.168.0.100 for P1 and

192.168.1.100 for P2, respectively. Please make sure to configure the IP Addresses and Subnet

Masks for the PMC-680i and the PC so that they are in the same subnet.

3.2.1 Setting PC's IP Address

To determine the PC's IP Address, go to Control Panel, and double-click on Network and Sharing

Center and the Network Connections folder appears.

Figure 3-5 Control Panel and Network Connections

Double-click on the Ethernet adapter to open its dialog box. Then double-click on Internet Protocol

Version 4 (TCP/IPv4) to show the PC's IP configuration.

Figure 3-6 Setting PC’s IP Address

3.2.2 Configure PMC-680i's IP Addresses

To configure the PMC-680i's IP Addresses, move the cursor to the Setup category, hit <Enter> and

then the Basic Setup topic appears. Hit the <Tab> button to move from Basic Setup to COMM

Setup. The IP Addresses can be modified by hitting <Enter> and going inside the page. Please note

that P1 and P2 should not on the same network segment.

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Figure 3-7 Configure PMC-680i’s IP Address

3.2.3 Enabling Java Scripting in Google Chrome

1) Open Google Chrome with Java scripting enabled. To enable Java Scripting, move the mouse

pointer to the upper right-hand corner of the Google Chrome interface and then click on this

icon to open the Settings page.

Figure 3-8 Open Setting page of Google Chrome

2) Double-click on the link Show Advanced Settings located at the bottom of the page to show the

advanced settings.

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Figure 3-9 Advanced Setting page of Google Chrome

3) Double-click on the Content Settings and the following screen appears. Select the option Allow

all sites to run JavaScript (recommended).

Figure 3-10 Set Content Setting for Google Chrome

3.2.4 Web Interface

1) Enter the IP Address of the PMC-680i in the Address area of Google Chrome and then press

<Enter>.

2) The PMC-680i’s Web Interface appears. There are four main menu items on the left-hand pane

- Metering, Statistics, Setup and Diagnostics.

3.2.4.1 Metering

Figure 3-11 Web Interface

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Click on the down arrow icon on the right of Metering to expand its sub-menu, which includes

Phasors, Real Time, Power Quality, Harmonics, Interharmonics, Demand, Energy, TOU, Waveform

and I/O. The following sections provide a quick overview of the web pages available under

Metering.

3.2.4.1.1 Phasors

Click Phasors on the left-hand pane, the page displays following information:

 Phase and magnitude of Ua (WYE)/Uab (Delta), Ub (WYE)/Ubc (Delta), Uc (WYE)/Uca (Delta), Ia,

Ib, Ic, U4, I4 and I5

 U1, U2 and U0

 I1, I2 and I0

Figure 3-12 Phasors Interface

3.2.4.1.2 Real Time

Click Real Time on the left-hand pane, the available outputs are Voltage, Current, U/I Phase Angle,

Power and Frequency.

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Figure 3-13 Real Time Interface

3.2.4.1.3 Power Quality

Click Power Quality on the left-hand pane, the available outputs are Voltage Deviation, Frequency

Deviation, Flicker, Symmetrical Components, Unbalance and PQ Event Counter.

3.2.4.1.4 Harmonics

Click on the drop-down box beside Harmonics on the right-hand pane to select which input to display.

The available inputs are Ua (WYE)/Uab (Delta), Ub (WYE)/Ubc (Delta), Uc (WYE)/Uca (Delta), U4, Ia, Ib,

Ic, I4 and I5. Click Harmonic Distortion (%), Harmonic RMS (V), Harmonic P (W), Harmonic Phase

Angle (°) and Harmonic Q (var) to view corresponding information.

Figure 3-14 Power Quality Interface

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Figure 3-15 Harmonics Interface

3.2.4.1.5 Interharmonics

Click on the drop-down box beside Inter-Harmonics on the right-hand pane to select which input to

display. The available inputs are Ua (WYE)/Uab (Delta), Ub (WYE)/Ubc (Delta), Uc (WYE)/Uca (Delta),

U4, Ia, Ib, Ic, I4 and I5. Click Interharmonic Distortion (%) and Interharmonic RMS (V) to view

corresponding information.

3.2.4.1.6 Demand

Click Demand on the left-hand pane, the Demand and Max. Demand will be shown on the right-hand

pane. Depending on the setting of the Self-Read Time setup register, the Max. Demand web page

may display the Max. Demand of This/Last Month or Max. Demand since/before Last Reset.

Figure 3-16 Interharmonics Interface

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Figure 3-17 Demand Interfaces

3.2.4.1.7 Energy

Click Energy on the left-hand pane, the Total Energy and Harmonic Energy will be shown on the right-

hand pane. Click Total Energy tab, the available outputs are Active/Reactive/Apparent Energy, while

Harmonic Energy displays H01 to H63 kWh Imp./Exp., H01 to H63 kvarh Imp./Exp. measurements.

Figure 3-18 Energy Interfaces

3.2.4.1.8 TOU

Click TOU on the left-hand pane, the right-hand page displays TOU Real Time and Log information.

Click Real Time to view present TOU schedule information, Energy and Max. Demand information.

Click Log to view TOU data which includes historical Energy and Max. Demand information.

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Figure 3-19 TOU Interfaces

3.2.4.1.9 Waveform

This web page displays the real-time waveform captured by the PMC-680i. A small fly-out comment

showing the channel name and the measurement value is displayed when the mouse pointer is

positioned to a particular point in a waveform.

Figure 3-20 Waveform Interface

3.2.4.1.10 I/O

Click I/O on the left-hand pane to display status of Digital Inputs, Relay Outputs and Digital Outputs.

3.2.4.2 Statistics

Figure 3-21 I/O Interface

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Click on the down arrow icon beside Statistics on the right to expand its sub-menu, which includes

Counters, SOE, PQ Log, Max./Min., SDR Trend, PQDIF, COMTRADE and EN50160. The following

sections provide a quick overview of the web pages available under Statistics.

3.2.4.2.1 Counters

This web page displays counters for SOE, PQ log, Pst, Plt, TOU, IER, EN50160, WFR, DWR, MSV, DR,

HSDR and SDR.

Figure 3-22 Counter Interface

3.2.4.2.2 SOE

This web page displays SOE Log starting with the most recent event (with a Start Index of 1). There

is a text box near the lower right-hand corner of the page. By entering a specific value in the text

box and the web page jump to particular page.

Also, you can query fixed period’s SOE by specifying Start Date and End Date. By selecting event

type from Type drop-down box to query specific type SOE. If a SOE has Waveform, the waveform

column would display download link. Click Detail to download file, please see figures below. In the

Waveform dialog box, click view to display waveform, while click .cfg or .dat to download waveform

file.

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Figure 3-23 SOE Interface and Download Waveform file

3.2.4.2.3 PQ Log

This web page displays PQ Log starting with the most recent event (with a Start Index of 1). There is

a text box near the lower right-hand corner of the page. By entering a specific value in the text box

and the web page jump to particular page.

Also, you can query fixed period’s PQ by specifying Start Date and End Date. By selecting event type

from Type drop-down box to query specific type PQ log. If a PQ Log has corresponding Waveform,

SEMI F47 or ITIC file, the waveform and Evaluate columns would display view link. Click Detail, SEMI

F47 or ITIC to view and download file, please see figures below.

Figure 3-24 PQ Log Interface

3.2.4.2.4 Max./Min. Log

Click Max./Min. on the left-hand pane and the following screens appear. This web page displays the

Max./Min. Log information of this month (since last reset) and last month (before last reset).

Period Displays the Max. and Min. information for a specific period, which consists of This

Period and Last Period.

Recorder Specifies one of four Groups of Max. and Min. information to display.

Figure 3-25 Max./Min. Interface

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3.2.4.2.5 SDR Trend

Click SDR Trend on the left-hand pane and the following screen appears on the right-hand pane.

This web page displays the Statistical Log in a trend curve. The available inputs are FREQ, Ua, Ub,

Uc, U4, Ia, Ib, Ic, I4, I5, Ua ANG, Ub ANG which can be configured via communication, please refer to

5.9.20 Trend Log Setup.

The color of the trend curve is highlighted and a small fly-out comment displayed showing the

parameter name and the measurement when the mouse pointer is positioned to a particular point on

a trend curve. Please note that the curve set log entries plot as horizontal axis and the page displays

latest 200 logs. Plea

Figure 3-26 SDR Trend Interface

3.2.4.2.6 PQDIF

Click on PQDIF on the left-hand pane and the following screen appears on the right-hand pane. This

web page displays the available PQDIF files in a Table format. Setting start date and end date allows

the user to search for the PQDIF files for a specific date. The Download button on the right side of

the Table allows the user to download a PQDIF file and store it locally on a PC where it can be viewed

using a PQDIF viewer.

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3.2.4.2.7 COMTRADE

Figure 3-27 PQDIF Interface

Click on COMTRADE on the left-hand pane and the following screen appears on the right-hand pane.

This web page displays the available COMTRADE files in a Table format. The view button below

Waveform column allows the user to view waveform of the COMTRADE file. The .cfg and .dat

button on the right side of the Table allows the user to download a COMTRADE file and store it locally

on a PC where it can then be viewed using a COMTRADE viewer.

Figure 3-28 COMTRADE Interface

3.2.4.2.8 EN50160

Click EN50160 on the left-hand pane and the following screen appears. This web page displays the

Summary of Results for EN50160 Compliance in a Table format and click hyperlink such as FAIL to

view detail information. Export button allows users to download EN50160 Compliance report, and

the box near the Export button page allows the user to search for the EN50160 Compliance Report for

a specific period.

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Figure 3-29 EN50160 Interface

Figure 3-30 Detail Information Example

3.2.4.3 Setup

Click Setup on the left-hand pane to expand and the sub-menus, which includes Basic Setup, PQ

Setup, Demand Setup, Record Setup, I/O Setup, COMM Setup, Clock Setup, Password Setup and

Clear. Then click Basic Setup and the following screen appears. This web page displays Basic

Setup information.

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Parameter

Range

Parameter

Range

Parameter

Range

Rated Parameters

U Primary

1 to 1000000V

I Primary

1 to 30000A

U4 Primary

1 to 1000000V

U Secondary

1 to 1500V

I Secondary

1 to 50A

U4 Secondary

1 to 1500V

I4 Primary

1 to 30000A

I5 Primary

1 to 30000A

Ull Nominal

1 to 1500V

I4 Secondary

1 to 50A

I5 Secondary

1 to 50A

I Nominal

1 to 20A

Wiring Mode

4W-WYE, 3W-WYE, DEMO, DELTA

CT Polarity

Figure 3-31 Setup Interface

In order to make changes, the user needs to first login to the web interface by clicking on the Login

icon at the upper right-hand corner of the page. The user then enter the password (default

password = 000000) at the Login dialog box. The user may now make the necessary setup changes

for the PMC-680i.

3.2.4.3.1 Basic Setup

Click Basic Setup on the left-hand pane and the following screen appears on the right-hand pane.

Figure 3-32 Basic Setup Interface

The following table illustrates the range for each parameter:

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Ia Reverse

Normal,

Reverse

Ib Reverse

Normal, Reverse

Ic Reverse

Normal, Reverse

I4 Reverse

I5 Reverse

Calculation

PF Convention

IEC, IEEE, -IEEE

kVA Calculation

Vector, Scalar

Others

Basic Agg.

50cyc, 150cyc, 10min, 2

Freq. Agg

1sec, 3sec, 10sec

PQ Plot

ITIC, SEMI F47

Phase A Color

Red*

Phase B Color

Yellow*

Phase C Color

Blue*

Phase N Color

Black*

GND Color

Green/Yellow striped*

*default

Table 3-3 Basic Setup Parameters Range

3.2.4.3.2 PQ Setup

Click PQ Setup on the left-hand pane and the following screen appears on the right-hand pane. Set

power quality parameters as you need which consist of below categories and please refer to 5.9.6 PQ

Setup for detailed range.

 Harmonic

 Flicker

 Dip/Swell

 Transient

 RVC (Rapid Voltage Changes)

 Inrush Current

 MSV (Mains Signalling Voltage)

 Discard Flagged Data

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3.2.4.3.3 Demand Setup

Click Demand Setup on the left-hand pane and the following screen appears. Set demand

parameters as you need, please refer to 5.9.8 Demand Setup.

Figure 3-33 PQ Setup Interface

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3.2.4.3.4 Energy Setup

Figure 3-34 Demand Setup Interface

Click Energy Setup on the left-hand pane and the following screen appears. Set energy parameters

as you need, please refer to 5.9.17 Interval Energy Recorder (IER) Setup and 5.9.10 Energy Pulse

Setup.

Figure 3-35 Energy Setup Interface

3.2.4.3.5 Recorder Setup

Click Recorder Setup on the left-hand pane and the following screen appears. Set various recorders’

parameters as you need, please refer to 5.9.9 WFR Setup.

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Figure 3-36 Record Setup Interface

3.2.4.3.6 I/O Setup

Click I/O Setup on the left-hand pane and the following screen appears. Set I/O parameters as you

need, please refer to 5.9.3 DI Setup and 5.9.4 RO/DO Setup.

3.2.4.3.7 COMM Setup

The PMC-680i comes standard with two Ethernet ports (P1&P2) which support Modbus TCP and two

RS-485 ports (P3&P4) which support Modbus RTU. In addition, PMC-680i support sending alarm

email via setting SMTP server. Click on COMM Setup on the left-hand pane and the following screen

appears. Set COMM parameters as you need, please refer to 5.9.1 Communications Setup. Please

note that P1 and P2 should not on the same network segment.

Figure 3-37 I/O Setup Interface

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Figure 3-38 COMM Setup Interface

3.2.4.3.8 Clock Setup

Click Clock Setup on the left-hand pane and the following screen appears. This web page shows four

areas: PC Clock, Device Clock, Clock and SNTP. There is a quick access button that can be used to

synchronize the PMC-680i's Clock to the PC Clock with just a simple click.

3.2.4.3.9 Password Setup

Click Password Setup on the left-hand pane and the following screen appears. This web page allows

the user to change the Login password for the PMC-680i. It's highly recommended for the user to

Figure 3-39 Clock Setup Interface

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Button

Function

Clear Max. Demand

Clear Max. demand of this month

Clear All Max./Min. Log

Clear all Max./Min. Log of This Period (This Month or Since the Last Reset)

Clear SOE Log

Clear PQ Log

Clear PQ Event Counters

Clear All DI Counters

Clear all DI Counters

Clear TOU Log

Clear all TOU Log, including real-time log and historical log

Clear Energy

Clear energy record

change the default Login password to something unique. After inputting passwords, click Save to

save change.

Figure 3-40 Password Setup Interface

3.2.4.3.10 Clear

Click Clear on the left-hand pane and the following screen appears. This web page allows the user to

perform the following Clear functions:

Table 3-4 Clear Items

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Figure 3-41 Clear Setup Interface

For example, if the user clicks on Clear Max. Demand, the following dialog box appears. Click OK to

confirm to delete.

Figure 3-42 Confirm Page

3.2.4.5 Diagnostics

Click Diagnostics on the left-hand pane to expand its sub-menu, which includes Diagnostics and

Maintenance.

3.2.4.5.1 Diagnostics

Click Diagnostics on the left-hand pane and the following screen appears. This web page displays

the PMC-680i's diagnostics information in a table format, which includes Version, Self Diagnostics,

Memory and Site Information.

Figure 3-43 Diagnostics Interface

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3.2.4.4.2 Maintenance

User login the PMC-680i Web with standard password, and click Maintenance on the left-hand pane

and the following screen appears.

 Backup & Restore Save or restore all configuration to local

 Alarm E-mail Test Test Alarm Email which configured via communication

Figure 3-44 Maintenance Interface

3.2.4.6 Customization

PMC-680i provides web page to distributor which can be used to execute some customized

information, such as Device Model, Web Page Banner, Logo on Front Panel and Logo on Web.

Besides, you can reset to factory defaults and caution should be exercised when taking this action.

Enter http://IP:Port/index.html#Customize in the Address area of Google Chrome and then press

<Enter>. Follow the guidelines on the web to customize information as you need.

Figure 3-45 Customize Interface

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Chapter 4 Applications

Setup Parameter

Definition

Options

DIx Mode

Each DI can be configured as a Status Input, Pulse Counter Input.

Only one DI should be programmed as a Demand Sync Input.

If Clock Source is set to DI, DI8 is used by default for GPS 1PPS Time Sync.

0=Status Input*

1=Counter

2=DMD Sync

DIx Debounce

Specifies the minimum duration the DI must remain in the Active or Inactive

state before a DI state change is considered to be valid.

1 to 9999 (ms)

(Default=20ms)

DIx Setpoint Type

Specifies the valid transition type, whether it’s positive, negative or any, that a DI

Setpoint looks for before triggering its output. DI Setpoint can only be used

when a DI is configured as a Status Input.

0=Any Transition*

1= +ve Transition

2= -ve Transition

DIx Setpoint Trigger

Specifies what output action a DI Setpoint will take when it triggers. DI

Setpoint can only be used when a DI is configured as a Status Input.

See Table 5-92

DIx Pulse Weight

Specifies the incremental value for each received pulse. This is only used when

a DI is configured as a Pulse Counter Input.

1* to 1,000,000

Setup Parameter

Value

Description

DIx Mode 0 Status Input

DIx Debounce

Default

DIx Setpoint Type

0, 1, 2

0=Any Transition*

1= +ve Transition

4.1 Inputs and Outputs

4.1.1 Digital Inputs

The PMC-680i is equipped with 8 self-excited Digital Inputs (DIs) that are internally wetted at 24 VDC.

Each DI has the following setup parameters:

Table 4-1 Definition for DI Parameters

The PMC-680i's DIs can be used in the following applications:

1) DIs are typically used for monitoring external status which can help prevent equipment damage,

improve maintenance, and track security breaches. The real-time statuses of the DIs are

available on the Front Panel as well as through communications. Changes in DI status are

stored as events in the SOE Log in 1 ms resolution. The following table illustrates how to

program a particular DI for Status monitoring.

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2= -ve Transition

DIx Setpoint Trigger

See Table 5-92

DIx Pulse Weight

N/A

Setup Parameter

Value

Description

DIx Mode

Counter

DIx Debounce

Default

DIx Setpoint Type

N/A

DIx Setpoint Trigger

N/A

DIx Pulse Weight

Default

Table 4-2 DI Setup Parameters for Status Input

Figure 4-1 Program DI for Status Monitoring

2) A DI can be used for pulse counting to collect WAGES (Water, Air, Gas, Electricity and Steam)

information. The DI Pulse Counter information is available via the Front Panel Interface or

communications. The DI Pulse Counters can be reset from the front panel or via

communications. The following table illustrates how to program a DI for pulse counting.

Table 4-3 DI Setup Parameters for Pulse Counting

Figure 4-2 Pulse Counter Display on the Front Panel Interface

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Setup Parameter

Value

Description

DIx Mode 2 DMD Sync

DIx Debounce

20 (Default)

Default

DIx Setpoint Type

N/A

DIx Setpoint Trigger

N/A

DIx Pulse Weight

N/A

Setup Parameter

Definition

Options

RO / DO Alarm

Enable Flag

Specifies if RO / DO alarm function is enabled.

0*=Disabled

1 ~ 4=RO1 to RO4 Enabled

5 ~ 8=DO1 to DO4 Enabled

Execute without

Arm

Specifies if the relays needs to be armed before they can be operated on.

Therefore, the user must first arm the relay first before operating a relay

0*=Disabled

1=Enabled

3) One of the Dls can be programmed to receive the Demand Sync Pulse by setting DI Mode to DMD

Sync. The following table illustrates how to program a DI as a Demand Sync Input. Please

refer to Section 4.2.3 for a detailed description.

Table 4-4 DI Setup Parameters for Demand Sync Pulse

4) When the Clock Source parameter is set to DI, DI8 is used by default to receive the 1PPS GPS

Time Sync. Signal for synchronizing its internal RTC. All DI8 setup parameters are disregarded

except for the DI8 Debounce. Please refer to Section 4.7.3 for a detailed description.

Figure 4-3 Set DI as Clock Source

4.1.2 Relay Outputs and Digital Outputs

The PMC-680i comes standard with 2 Form A and 2 Form C Mechanical Relay Outputs (RO) as well as

4 Solid State Relay Outputs (DO). RO and DO are normally used for setpoint alarming, load control,

or remote control applications. RO and DO on the PMC-680i has the following setup parameters:

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RO / DO Delay

As to remote aggregate command, and if the delay time is 0, the RO / DO will immediately take action when received the command and remain closed status until the next command come. On the contrary, RO / DO will take action and return after a certain time delay (x 0.1s). For remote open command, the delay time has no meaning and RO / DO will immediately return after receive the command.

As to non-remote command, and it means that the RO / DO will return immediately after receive the return command when the time delay is 0; if the time value is not 0, RO / DO will return at a certain time delay (x 0.1s) after receive the return command.

0 to 6000 (x 0.1s), 10*

Application

Description

Front Panel Control

Manual operation from the Front Panel, mainly used for relay testing.

Remote Control

Remotely operated over communications via our free PMC Setup software or PecStar® iEMS.

Remote Control of RO and DO is not supported by the Web Interface.

Control Setpoint

Control Setpoints can be programmed to trigger RO/DO, WFR, DR, Alarm Email, etc, upon

becoming active. Please refer to Section 4.3 for detailed description.

Dip/Swell Setpoint

Dip/Swell Setpoint can be programmed to trigger RO/DO, WFR, DR, Alarm Email, etc, upon

becoming active. Please refer to Section 4.4.4 for detailed description.

Transient Setpoint

Transient setpoint can be programmed to trigger WFR and DWR, upon becoming active. Please

refer to Section 4.4.5 for detailed description.

RVC Setpoint

RVC setpoint can be programmed to trigger WFR and DWR, upon becoming active. Please refer

to Section 4.4.10 for detailed description.

Inrush Setpoint

Inrush Setpoint can be programmed to trigger RO/DO, WFR, DR, Alarm Email, etc. upon becoming

active. Please refer to Section 4.4.11 for a detailed description.

* Default

Table 4-5 DO/RO Setup Parameters

ROs and DOs on the PMC-680i can be used in the following applications:

Table 4-6 DO/RO Setup Applications

Figure 4-4 Manual Operation of RO/DO via the Front Panel Interface

Since there are so many ways to utilize the relay output on the PMC-680i, a prioritized scheme has

been developed to avoid conflicts between different applications. In general, Front Panel Control

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Setup Parameters

Definition

Options

kWh LED Energy Pulse

Source

Specify the source to which the energy pulse output

is proportional.

Disabled

Harmonic kWh

Fundamental kWh

Total kWh

kvarh LED Energy Pulse

Source

Disabled

Harmonic kvarh

Fundamental kvarh

Total kvarh

DO Energy Pulse Source

See Table 4-8 DO Energy Pulse Source

Energy Pulse Constant

Specify the rate of the energy pulse output.

For example, 1000 means 1000 Impulses per kWh or

1 Impulse per 1Wh.

1000, 3200, 5000, 6400 or 12800 Impulses

per kXh (imp/kXh)

Energy Pulse

Description

Energy Pulse

Description

Energy Pulse

Description

has the highest priority and can override the other applications. Remote Control, Control, Dip/Swell,

Transient, Inrush Current and RVC Setpoint share the same priority, meaning that they can all be

programmed to control the same relay output. This scheme is equivalent to having an implicit

Logical OR operation for the control of a Relay Output and may be useful in providing a generic alarm

output signal. However, the sharing of a Relay Output is not recommended if the user intends to

generate a control signal in response to a specific setpoint condition.

4.1.3 Energy Pulse Outputs

There are two common applications for Energy Pulsing:

 Accuracy Testing

 Providing energy consumption information to an external device such as a PLC or a Pulse Counter

The PMC-680i can be configured to generate kWh and/or kvarh energy pulsing via either the 2 Front

Panel LED Pulse Outputs (kWh and kvarh) or the 4 Digital Outputs in the back. Energy pulsing can be

enabled from the Front Panel or Web through the Demand Energy or Energy Setup screen.

Figure 4-5 Enable Energy Pulse in the Front Panel and Web

PMC-680i’s Energy Pulse Outputs have the following setup parameters:

Table 4-7 Setup Parameters for Energy Pulse Output

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Source

Disabled

kWh TH

kvarh Imp. H01

Real Time kWh Total

kWh Imp. TH

kvarh Exp. H01

kWh Imp.

kWh Exp. TH

kvarh TH

kWh Exp.

Real Time kvarh Total

kvarh Imp. TH

kWh Total Fundamental

kvarh Imp.

kvarh Exp. TH

kWh Imp. H01

kvarh Exp.

kWh Exp. H01

kvarh Total Fundamental

Energy Pulse Constant

Default

Min. Interval

≤1000

1000/3200/5000/6400/12800

1000

160ms

≤2000

1000/3200/5000/6400

1000

≤2600

1000/3200/5000

1000

≤4000

1000/3200

1000

≤13000

1000

Table 4-8 DO Energy Pulse Source

It's important to understand that energy pulsing is always based on the secondary ratings (e.g. 230V

and 5A) as it would be impossible to generate the required number or pulses based on the primary

ratings. The following table illustrates the recommended settings for the Energy Pulse Constant

based on Z = 2 x V

nominal

x I

nominal

, where V

nominal

and I

are the secondary voltage and current

nominal

nominal ratings. In general, one would use a higher Pulse Constant for a smaller Z value (i.e. a

smaller V

nominal

and I

) in an accuracy testing situation to reduce the test time.

nominal

4.2 Power, Energy and Demand

4.2.1 Basic Measurements

The PMC-680i provides the following basic measurements with 1 second update rate:

Table 4-9 Settings for Energy Pulse Constant

 3-phase Voltages and Currents

 3-phase Powers, PFs and dPF

 U4, I4, I5 and Frequency

 Bi-directional Energy measurements

 Voltage and Current phase angles

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kWh

kvarh

kVAh

Imp. (Total RMS)

kVAh Total

Exp. (Total RMS)

Net (Total RMS)

Total (Total RMS)

Net Fundamental

Total Fundamental

Imp./Exp. TH

Net TH

Total TH

Imp./Exp. H02 to H63

 Real-time status for DIs, ROs and DOs

 Ia/Ib/Ic/I4/I5 K-Factor and Crest Factor, Ua/Ub/Uc/U4 Crest Factor

Figure 4-6 Displaying for Basic Measurements

4.2.2 Energy Measurements

The PMC-680i provides Energy measurements include fundamental energy as well as harmonic

energy. The energy has a maximum value of 99,999,999,999.999 and will roll over to zero when it is

reached. The energy can be reset manually or preset to user-defined values through the front panel

or via communications. The PMC-680i provides the following energy measurements:

4.2.3 Demands

Demand is defined as the average power consumption over a fixed interval (usually 15 minutes),

including present demand and predicted demand, and both of them have two calculations: SLD and DI

Table 4-10 Energy Measurements

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Setup Parameter

Definition

Options

Demand Sync. Mode

SLD - Internally synchronized to the meter clock

DI Sync - Externally synchronized to a DI that has been programmed as a Demand

Sync Input by setting the DI Mode setup parameter as DMD Sync.

0=SLD (default)

1=DI Sync

Demand Period

1 to 60 minutes. For example, if the # of Sliding Windows is set as 1 and the

Demand Period is 15, the demand cycle will be 1×15=15min.

1 to 60 minutes

Default=15

# of Sliding Windows

The number of Sliding Windows.

1 to 15

Default=1

Self-Read Time

The Self-Read Time allows the user to specify the time and day of the month for

the Demand Log Self-Read operation. The Self-Read Time supports three

options:

 A zero value means that the Self-Read will take place at 24:00 of the last day

of each month.

 A non-zero value means that the Self-Read will take place at a specific time

and day based on the formula: Self-Read Time = Day * 100 + Hour where 0 ≤

Hour ≤ 23 and 1 ≤ Day ≤ 28. For example, the value 1512 means that the Self-Read will take place at 12:00pm on the 15th day of each month.

 A 0xFFFF value will disable the Self-Read operation and replace it with manual

operation. A manual reset will cause the Max./Min. Log of This Month to

be transferred to the Max./Min. Log of Last Month and then reset. The

terms This Month and Last Month will become Since Last Reset and Before

Last Reset.

Default=0xFFFF

Predicted Response

The Predicated Response shows the speed of the predicted demand output. A

value between 70 and 99 is recommended for a reasonably fast response.

Specify a higher value for higher sensitivity.

70 to 99

Default=70

Ua/Ub/Uc

ULN avg

Uab/Ubc/Uca

ULL avg

Sync. The predicted demand is typically used for pre-alarm and helps users reducing power

consumption.

PMC-680i also provides recording of Max. Demand of this month and last month. The Max. Demand

of this month can be transferred to be as Max. Demand of last month at the end of month, and the

Max. Demand of this month will be reset.

The PMC-680i has the following setup parameters which can set via communication or through the

Front Panel:

The PMC-680i provides the following Present Demand and Predicted Demand parameters:

Table 4-11 Setup Parameters for Demand

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Present

Demand

Ia/Ib/Ic

I avg

∑kVA

kWa/kWb/kWc

Imp./Exp.

∑kW Imp./Exp.

kvara/kvarb/kvarc

Imp./Exp.

∑kvar Imp./Exp.

kVAa/kVAb/kVAc

P.F.a/P.F.b/P.F.c

∑P.F.

Frequency

Ua/Ub/Uc

Deviation

Uab/Ubc/Uca

Deviation

Ua/Ub/Uc Over

Deviation

Uab/Ubc/Uca Over

Deviation

Ua/Ub/Uc Under

Deviation

Uab/Ubc/Uca

Under Deviation

Freq Deviation

U2/U0 Unbalance

I2/I0 Unbalance

Ia/Ib/Ic K Factor

I4 K Factor

I5 K Factor

Ua/Uab THD

Ub/Ubc THD

Uc/Uca THD

U4 THD

Ia/Ib/Ic THD

I4 THD

I5 THD

Ua/Uab TOHD

Ub/Ubc TOHD

Uc/Uca TOHD

U4 TOHD

Ia/Ib/Ic TOHD

I4 TOHD

I5 TOHD

Ua/Uab TEHD

Ub/Ubc TEHD

Uc/Uca TEHD

U4 TEHD

Ia/Ib/Ic TEHD

I4 TEHD

I5 TEHD

Ia Fund.

Ib Fund.

Ic Fund.

I4 Fund.

I5 Fund.

Predicted

Demand

Ua/Ub/Uc

ULN avg

Uab/Ubc/Uca

ULL avg

Ia/Ib/Ic

I avg

kWa/kWb/kWc

Imp./Exp.

∑kW Imp./Exp.

kvara/kvarb/kvarc

Imp./Exp.

∑kvar Imp./Exp.

kVAa/kVAb/kVAc

∑kVA

P.F.a/P.F.b/P.F.c

∑P.F.

Frequency

Max.

Demand

Ia/Ib/Ic

∑kW Imp./Exp.

∑kvar Imp./Exp.

∑kVA

The Max. Demand can be reset manually through the Front Panel or via communications.

Table 4-12 Demand Parameters

Figure 4-7 Display of Demand via Front Panel

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Alternate Days?

Get the current time

Start

Choose Alternate Day

rate schedule

Choose current daily

profile

Choose current rates

Statistic

Energy & Demand

End

Choose season

Choose corresponding

weekday rate schedule

Identify Weekday Type

Yes

Figure 4-8 Clear Max. Demand through the front panel and Web

4.2.4 Time of Use (TOU)

TOU is used for electricity pricing that varies depending on the time of day, day of week, and the

season. For power provider, TOU is typically used for billing application, as it consists of daily

profiles for seasons, holidays, weekdays and weekends. For power consumers, understanding TOU

may provide you with an opportunity to save money by using less electricity at times of peak demand.

The PMC-680i supports two TOU schedules, which can be switched at a pre-defined time. The

switching between the two schedules is stored in the SOE log as an event. Up to twelve seasons can

be applied and each season can be programmed with up to twenty daily profiles for alternative day,

weekday1, weekday2 or weekday3.

Figure 4-9 TOU Logic

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Setup Parameters

Definition

Options

Daily Profile #

Specify a daily rate schedule which can be divided into a maximum

of 12 periods in 1-min intervals.

Up to 20 Daily Profiles can be programmed for each TOU schedule.

1 to 20, the first period start at

00:00 and the last period end

at 24:00.

Season #

A year can be divided into a maximum of 12 seasons. Each season

is specified a start date and end with the next season’s start date.

1 to 12, , start from January 1st

Alternate Days #

A day can be defined as an alternate day, such as May 1st. Each

alternate day uses a daily profile.

1 to 90.

Day Types

Specify the day types of the week. Each day of a week can be

categorized as a day type which includes weekday1, weekday2,

weekday3 and alternate days. The alternate day has the highest

priority.

Weekday1, Weekday2, Wee

kday3 and alternate days

Switch Time

Specify when to switch from one TOU schedule to another.

Write 0xFFFFFFFF to this parameter (register 50107) if there is no

need to switch or only one TOU schedule.

Format: YYYYMMDDHH

Self-Read time

Specify the day and time of each month to transfer TOU recorders.

A non-zero value means that the Self-Read will take place at a

specific time and day based on the formula: Self-Read Time = Day

* 100 + Hour where 0 ≤ Hour ≤ 23 and 1 ≤ Day ≤ 28. For example,

the value 1512 means that the Self-Read will take place at 12:00pm

on the 15th day of each month.

Format: DDHH

Each TOU schedule has the following setup parameters and can only be programmed via

communications:

Table 4-13 TOU Setup Parameters

The TOU status and readings can be displayed through the Front Panel or via communications, see the

below captures.

Figure 4-10 TOU Status

For each Tariff, the PMC-680i provides the following real-time Energy and Demand information:

kWh/kvarh Imp./Exp., kVAh and kW/kvar Imp./Exp. Max. Demands. The register value will roll over

to zero automatically when it reaches 99,999,999,999.999 kWh.

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In addition, PMC-680i provides real-time datalog, historic datalog and transient datalog for TOU.

Each datalog contains energy and demand information. The real-time datalog triggered by fixed

time automatically and transient datalog triggered manually. The real-time datalog has a capacity of

3 entries organized in a FIFO basis, with the newest datalog replacing the oldest one. Historic

datalog calculate Monthly Average Power Factor in statistic time while recording interval energy. All

TOU datalogs can be retrieved or reset via the Front Panel or communications.

4.3 Setpoints

The PMC-680i comes standard with 272 user programmable setpoints which provide extensive

control by allowing a user to initiate an action in response to a specific condition. There are 256

Standard Setpoints and 16 High-Speed Setpoints. Typical setpoint applications include alarming,

fault detection and power quality monitoring.

Figure 4-11 Over Setpoints

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Setup Parameter

Definition

Options

Setpoint Type

Specify the monitoring condition -- Over Setpoint, Under Setpoint.

0*=Over Setpoint

1=Under Setpoint

Setpoint Parameter

Specify the parameter to be monitored.

See table 4-15

Setpoint Active Limit

Specify the value that the setpoint parameter must exceed for Over Setpoint

or go below for Under Setpoint for the setpoint to become active.

Setpoint Inactive

Limit

Specify the value that the setpoint parameter must go below for Over

Setpoint or exceed for Under Setpoint for the setpoint to becomes inactive.

Setpoint Active

Delay

Specify the minimum duration that the setpoint condition must be met before

the setpoint becomes active. An event will be generated and stored in the

SOE Log. The range of the Setpoint Active Delay is between 0 and 9999

seconds for Standard Setpoints and between 0 and 9999 cycles for High

Setpoints.

0* to 9999s

Setpoint Inactive

Delay

Specify the minimum duration that the setpoint return condition must be met

before the setpoint becomes inactive. An event will be generated and

0* to 9999

Figure 4-12 Under Setpoints

The Setpoints can be programmed over communications and have the following setup parameters:

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stored in the SOE Log. The range of the Setpoint Inactive Delay is between

0 and 9999 seconds for Standard Setpoints and between 0 and 9999 cycles for

High Setpoints.

Setpoint Trigger

Specify what action a setpoint can take when it becomes active. Please refer

to Table 4-16 below for a list of Setpoint Triggers.

Setpoint Parameters

Real-time*

Demand

Harmonics & Interharmonics

ULN

kW Total DMD

U0 Unb

U_THD, I_THD

ULL

kvar Total DMD

U2 Unb

U_TOHD, I_TOHD

No kVA Total DMD

I0 Unb

U_TEHD, I_TEHD

Ia / Ib /Ic

P.F. Total DMD

I2 Unb

U_TIHD, I_TIHD

kW Total Pred_DMD

U Fund.

U_TIOHD, I_TIOHD

kvar Total Pred_DMD

I Fund.

U_TIEHD, I_TIEHD

Frequency

P.F. Total Pred_DMD

Volt. Fluctuation

U_HD02 to U_HD63

kW Total Pst

U_IHD01 to U_IHD63

kvar Total Plt

I_H02_RMS to I_H63_RMS

P.F. Total

I_IH01_RMS to I_IH63_RMS

Bit

Action

Bit

Action

Bit

Action

Bit0

RO1 Closed

Bit8~Bit10

Reserved

Bit21

Standard DR #3

Bit1

RO2 Closed

Bit11

HS DR #1

Bit22

Standard DR #4

Bit2

RO3 Closed

Bit12

HS DR #2

Bit23

Standard DR #5

Bit3

RO4Closed

Bit13

HS DR #3

Bit24

Standard DR #6

Bit4

DO1 Closed

Bit14

HS DR #4

Bit25

Standard DR #7

Bit5

DO2 Closed

Bit15~Bit18

Reserved

Bit26

Standard DR #8

*Default

Table 4-14 Description for Setpoint Parameters

* High-Speed Setpoint Parameters

Table 4-15 Setpoint Parameters

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Bit6

DO3 Closed

Bit19

Standard DR #1

Bit27

DWR

Bit7

DO4 Closed

Bit20

Standard DR #2

Bit28

WFR

* Only can be triggered by DI and Standard Setpoints

Table 4-16 Setpoint Triggers

4.4 Power Quality Parameters

The PMC-680i has been certified as an IEC 61000-4-30 Class A performance instrument by PSL.

Therefore, the Measurement Aggregation Algorithm used for the derivation of all IEC 61000-4-30 PQ

parameters are in accordance to Section 4.5 of the IEC 61000-4-30 Standard. Please refer to

Appendix E for a copy of the IEC 61000-4-30 Class A Certificate of Conformity.

4.4.1 Power Frequency

The PMC-680i is capable of measuring Frequency accurate to ±0.005Hz or 0.01%. The measurement

range is ±15% of f

system.

, which is 42.5Hz to 57.5Hz for 50Hz system and 51 Hz to 69Hz for 60Hz

nominal

The measurement method of Frequency is in accordance with Section 5.1 of IEC 61000-4-30 Standard

for Class A performance. The PMC-680i also computes Freq. Deviation as per below:

Freq. Deviation = ((f - f

nominal

)/f

) x 100% where f

nominal

is the Nominal Frequency

nominal

Figure 4-13 Displaying for Frequency Deviation

4.4.2 Magnitude of the Supply Voltage

The measurement method of the Magnitude of the Supply Voltage parameters is in accordance with

Section 5.2 of IEC 61000-4-30 Standard for Class A performance. The measurement method is not

intended for the detection and measurement of disturbances such as Dips, Swells, Voltage

Interruptions and Transients. The RMS value includes voltage related measurements such as

Harmonics, Interharmonics, Mains Signaling, etc.

4.4.3 Flicker

The PMC-680i provides the Flicker measurements in accordance with the IEC 61000-4-15 (2010)

Standard for Class A performance using the recommended models for 120V and 230V, supporting

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Parameter

Definition

Residual Voltage

The lowest U

rms (1/2)

value measured on any channel during the Dip

both 50Hz and 60Hz for each model. Voltage Dips, Swells and Interruptions shall cause Pst and Plt

output values as well as "output 4 and 5 values" (see IEC 61000-4-15) to be flagged. Please refer to

Section 4.4.12 Flagging Concept for a detailed description.

The PMC-680i is capable of storing Flicker measurements for 1 year with the standard 4GB model and

2 years with the 8GB option.

Figure 4-14 Displaying for Flicker

4.4.4 Supply Voltage Dips/Swells and Interruption

The PMC-680i supports the detection of the Supply Voltage Dips/Swells and Interruption using a

method that is in accordance with Section 5.4 of IEC 61000-4-30 Standard for Class A performance.

The PMC-680i provides Dip/Swell and Interruption detection for voltage quality monitoring on a per

phase basis and records an event in the PQ Log, which includes the event timestamp event type,

event characteristics and ITIC/SEMI F47 curve. Moreover, Dip/Swell detection for each phase

voltage would trigger WFR, DWR, HS DR, DR and RO/DO Alarm.

4.4.4.1 Voltage Dip Evaluation

A Voltage Dip is characterized by a pair of data, the Residual Voltage (U

Figure 4-15 Displaying for Dip/Swell and Interruption

) or Depth and Duration:

res

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Depth

The difference between the Reference Voltage (either U

din

or Usr) and the Residual Voltage. It's

generally expressed in percentage of the Reference Voltage.

Duration

The time difference between the beginning and the end of the Voltage Dip.

Parameter

Definition

Max. Voltage Swell Magnitude

The largest U

rms (1/2)

value measured on any channel during the Swell.

Duration

The time difference between the beginning and the end of the Voltage Swell.

Parameter

Definition

Options/Value

Dip/Swell Reference Voltage

Udin / Usr

0*= U

din,

1= Usr

Dip/Swell Enable

Dip/Swell Enable.

0*=Disabled, 1=Enabled

Table 4-17 Dip Evaluation Parameter

4.4.4.2 Voltage Swell Evaluation

A Voltage Swell is characterized by a pair of data, the Maximum Swell Voltage Magnitude and

Duration:

Table 4-18 Swell Evaluation Parameter

4.4.4.3 Sliding Reference Voltage (Usr)

If a sliding reference is chosen for the detection of Voltage Dip or Swell, this shall be calculated using

a first order filter with a 1-min time constant. This filter is given by

= 0.9967 x U

sr(n)

+ 0.0033 x U

sr(n-1)

(10/12)rms

where

sr(n)

is the previous value of the Sliding Reference Voltage

sr(n-1)

(10/12)rms

is the present value of the Sliding Reference Voltage

is the most recent 10/12-cycle r.m.s. value

4.4.4.4 Dip/Swell Setpoint

As per IEC 41000-4-30:

Voltage Swell Detection

On polyphase systems a Swell begins when the Urms(1/2) voltage of one or more channels rises above the Swell Threshold and ends when the Urms(1/2) voltage on all measured channels is equal to or below the Swell Threshold minus the Hysteresis voltage.

Voltage Dip Detection

On polyphase systems a Dip begins when the Urms(1/2) voltage of one or more channels is below the Dip Threshold and ends when the Urms(1/2) voltage on all measured channels is equal to or above the Dip Threshold plus the Hysteresis voltage.

The Dip/Swell Threshold and the Hysteresis Voltage are both set by the user according to the actual

situation. The Dip/Swell Setpoint provides the following setup parameters which can be

programmed via the Front Panel or over communications:

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Swell Limit

Specify the limit of Swell.

101 to 200(%) of reference voltage, Default=110%

Dip Limit

Specify the limit of Dip.

1 to 99(%) of reference voltage, Default=90%

Dip Return

Specify the return value of Dips.

1 to 1000 (x0.001 Ue), Default=5

Swell Return

Specify the return value of Swells.

1 to 1000 (x0.001 Ue), Default=5

Dip/Swell Trigger

Specify what action a setpoint can take when Dip / Swell become active

DO/RO Closed / DR / HS DR / WFR* / DWR

*default

Table 4-19 Description for Dip/Swell Parameter

The Dip Limit, Swell Limit, Voltage Interruption Threshold and Dip/Swell Return values should be

configured to meet the following criteria:

a) The Voltage Interruption Threshold shall be set below Dip Limit.

b) The Swell Limit and Dip Limit should associate with Voltage Rapid Changes in the minimum

difference between the two steady-states. The absolute value of the difference between the

Dip /Swell Limits and 100% must always be greater than the Voltage Rapid Changes in the

minimum pressure difference between the two steady-states (actual percentage).

c) The Dip/Swell Return value should associate with Swell limit and Dip Limit, Dip/Swell return

value (actual value) must be less than the Dip/Swell limit (Dip, Swell of the absolute difference of

the minimum value and 100%).

d) Regardless of whether Dip/Swell is enabled, the conditions for a), b) and c) must always be met.

4.4.4.5 WFR of Dips/Swells Events

Figure 4-16 WFR of a Dip Event

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Parameter

Definition

Options/Value

Interruption Reference Voltage

Udin / Usr

0*= U

din,

1= Usr

Interruption Enable

Dip/Swell Enable.

0*=Disabled, 1=Enabled

Interruption Limit

Specify the limit of Interruption.

50 to 0(%) of reference voltage, Default=10%

Interruption Return

Specify the return value of Interruption.

1 to 1000 (x0.001 Ue), Default=5

Interruption Trigger

Specify what action a setpoint can take when Dip / Swell become active

DO/RO Closed / DR / HS-DR / WFR* / DWR

Figure 4-17 RMS Plot of the same Dip Event

4.4.4.6 Voltage Interruption Evaluation

On polyphase systems, a Voltage Interruption begins when the U

below the Interruption Threshold and ends when the U

voltage on any one channel is equal to,

rms (1/2)

voltages of all channels fall

rms (1/2)

or greater than, the Interruption Threshold plus the Hysteresis.

The Interruption Threshold and Hysteresis are both set by the user according to the use. The

Interruption Threshold shall not be set below the uncertainty of Residual Voltage measurement plus

the value of Hysteresis. Typically, Hysteresis is equal to 2% of U

can, for example, be set to 5% of U

din

. The Interruption Threshold

din

The Duration of a voltage interruption is the time difference between the beginning and the end of

the Voltage Interruption.

4.4.4.7 Voltage Interruption Setpoint

The Voltage Interruption Setpoint provides the following setup parameters which can be programmed

via the Front Panel or over communications:

*default

Table 4-20 Description for Interruption Setpoint Parameter

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Setup Parameter

Definition

Options

Transient Enable

Transient enable or disable.

Disabled* / Enabled

Transient Limit

Specify the limit of Transient

5% to 500% Ue, 35*

Transient Trigger

Specify what action a setpoint can take when Transient become active

WFR* / DWR

V2 Unbalance x100%

V V1

I2 Unbalance x100%

I I1

4.4.5 Voltage Transients

The PMC-680i provides the capability for detecting voltage transient disturbances using the sliding-

window method according to IEC 61000-4-30 with a maximum resolution of 40µs (@50Hz) for the

standard PMC-680i and 20µs (@50Hz) with the optional 1024 samples/cycle sampling. The PMC-

680i provides transient detection for voltage quality monitoring and records an event in the PQ Log,

which includes the event timestamp event type, and event characteristics. In addition, transient

would trigger WFR and DWR.

4.4.5.1 Transient Setpoint

The Transient Setpoint provides the following setup parameters which can be programmed via the

Front Panel or over communications:

*default

Table 4-21 Setup parameters for Transient Setpoint

4.4.5.2 WFR of Transient Events

Figure 4-18 WFR of a Transient Event at 512 samples/cycle

4.4.6 Supply Voltage Unbalance

The PMC-680i provides both the Zero Sequence and Negative Sequence Voltage and Current

Unbalance measurements using Symmetrical Components and in accordance with Section 5.7 of IEC

61000-4-30 Standard for Class A performance.

(Negative Sequence Unbalance)

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V0 Unbalance x100%

V V1

I0 Unbalance x100%

X100%

%100

X100%







X100%







X100%

nom

X100%

nom

where

V0, V1, V2 are the Zero, Positive and Negative Sequence Components for Voltage, respectively.

and

I0, I1, I2 are the Zero, Positive and Negative Sequence Components for Current, respectively.

(Zero Sequence Unbalance)

4.4.7 Harmonics and Interharmonics

The PMC-680i provides the Harmonics and Interharmonics measurements in accordance with

Sections 5.8 and 5.9 of IEC 61000-4-30 Standard for Class A performance using a 10/12 cycle gapless

centered harmonic sub-group measurement, denoted Cng for Harmonics and C

Interhamonics, as per IEC 61000-4-7:2002.

There are three methods to calculate the Harmonic Distortion (HD):

a) Fundamental Method:

Voltage Kth Harmonic/Interharmonic Distortion=

where U1 is the Fundamental Voltage

n-200-ms

for

Current Kth Harmonic/Interharmonic Distortion=

b) RMS Method:

Voltage Kth Harmonic /Interharmonic Distortion=

Current Kth Harmonic/Interharmonic Distortion=

c) Nominal Method:

Voltage Kth Harmonic /Interharmonic Distortion=

Current Kth Harmonic /Interharmonic Distortion=

where I1 is the Fundamental Current

where the denominator is the RMS

where U

where I

is the Nominal Voltage

nom

is the Nominal Current

nom

The PMC-680i also provides, in addition to Voltage Harmonics, measurements for Current Harmonics,

K-Factor, Crest Factor, Power Harmonics and Energy Harmonics.

K-Factor and Crest Factor

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)(

max

Factor







rms

peak

C 

THD, TOHD, TEHD (%)

▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪

HD01 to HD63 (%)

▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪

TH, H01 to H63 (RMS)

▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪

TOH/THE/DC rms

▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪

Current K-Factor

-- ▪ ▪ ▪ ▪

▪

Crest Factor

▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪

IHD01 to IHD63 (%)

▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪

IH01 to IH63 (RMS)

▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪

TIHD, TOIHD, TEIHD (%)

▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪

Phase Angle H01 to H63

▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪

K-Factor is defined as the weighted sum of the harmonic load currents according to their effects on

transformer heating, as derived from ANSI/IEEE C57.110. A K-Factor of 1.0 indicates a linear load

(no harmonics). The higher the K-Factor, the greater the harmonic heating effects.

Ih = hth Harmonic Current in RMS

= Highest harmonic order

max

Crest Factor is defined as the Peak to Average Ratio (PAR), and its calculation is listed below:

|X|

= Peak amplitude of the waveform

peak

= RMS value

rms

4.3.8.1 Voltage and Current Harmonics and Interharmonics

The following table illustrates the Voltage and Current Harmonics and Interharmonics measurements

available on the PMC-680i:

4.4.8.2 Power Harmonics

The following table illustrates the Power Harmonic measurements available on the PMC-680i:

Table 4-22 Voltage and Current Harmonics and Interharmonics Measurements

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kW/kvar/kVA TH

▪ ▪ ▪

-- ▪ ▪ ▪ --

PF TH

kW/kvar/kVA Fundamental

▪ ▪ ▪

-- ▪ ▪ ▪ --

PF Fundamental

▪ ▪ ▪

-- ▪ ▪ ▪ --

kW/kvar/kVA H02 to H63

▪ ▪ ▪

-- ▪ ▪ ▪ --

PF H02 to H63

▪ ▪ ▪

-- ▪ ▪ ▪ --

Setup Parameter

Definition

Options

Harmonics Calculation

Specifies the Harmonics calculation methods, please refer to above introduction.

0*=% of Fundamental

1=% of RMS

2=% of Nominal

Statistical Harmonic Calculation

Specifies the mode of calculating harmonic.

0*=Subgroup, 1=Group

Order of Harmonic Calculation

Specifies the order of harmonic statistic.

2 to 63 (Default=40)

Table 4-23 Power Harmonics Measurements

4.4.8.3 Harmonic Setup Parameters

The Harmonic provides the following setup parameters which can be programmed via the Front Panel

or over communications:

*default

Table 4-24 Setup parameters for Harmonic

4.4.8.4 Screen Captures of Harmonics Measurements

Figure 4-19 Harmonic Measurements on Front Panel Interface and Web Interface

Indicates the data is flagged and press Enter to select to refresh present page or select to

stop refreshing data.

4.4.8 Mains Signalling Voltage (MSV)

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Setup Parameter

Value

MSV #x Enable

0 = Enable, 1 = Disable, default=0

MSV #x Frequency

50 Hz: 600 to 30000 (x0.1Hz)

60 Hz: 700 to 30000 (x0.1Hz)

Default=10000

MSV #x Limit

3 to 1000 (x0.001Ue), default=50 (x0.001Ue)

MSV #x Emission Time

1 to 120s, default=60s

As per 5.10 of IEC 61000-4-30:

Mains Signaling Voltage is RMS voltage of mains signal.

Mains signaling voltage measurement shall be based on

 Either the corresponding 10/12-cycle r.m.s. value interharmonic bin  Or the r.m.s. of the four nearest 10/12-cycle r.m.s. value interharmonic bins

The beginning of a signaling emission shall be detected when the measured value of the concerned interharmonic exceeds a threshold. The measured values are recorded during a period of time specified by the user, in order to give the level and the sequence of the signal voltage.

The user must select a detection threshold above 0.1% U

as well as the length of the recording period up to 120s.

din

The PMC-680i provides 3 groups of waveform recorder for MSV with 128 entries in accordance with

Section 5.10 of IEC 61000-4-30 Standard for Class A performance. Each MSV WR will be recorded as

PQ Log, SOE Log and EN50160 report.

The MSV provides the following setup parameters which can be programmed through the Front

Panel, Web or communication:

Table 4-25 Mains Signal Voltage Setup Parameters

Table 4-20 Setup Mains Signal Voltage via Front Panel and Web

4.4.9 Voltage Deviation

As per Section 5.12 of IEC 61000-4-30:

The 10/12-cycle r.m.s value Urms can be used to assess the underdeviation and overdeviation parameters in per cent of Udin. The underdeviation Uunder and overdeviation Uover parameters are determined by the following equations. w:

Voltage Overdeviation (%)

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= 0 if U

over

= ((U

rms

- U

din

) / U

) x 100% if U

din

rms

< U

≥ U

din

Voltage Underdeviation (%)

= 0 if U

under

= ((U

din

- U

rms

) / U

) x 100% if U

din

rms

> U

≤ U

din

The PMC-680i is capable of measuring Voltage accurate to 0.1% and monitoring Voltage deviation on

line. In addition, the Voltage deviation can be set as setpoint. The following screen captures

illustrates the display of the Deviation parameters in the Front Panel and built-in Web Interface.

Figure 4-21 Voltage Deviation Display on Front Panel and Web

4.4.10 Rapid Voltage Changes (RVC)

As per IEC 61000-4-30:

A rapid voltage change is a quick transition in RMS voltage between two steady-state conditions.

To measure rapid voltage change, threshold must be defined for each of the following: the minimum rate of change, the minimum duration of the steady-state conditions, the minimum difference in voltage between the two steady-state conditions, and the steadiness of the steady-state conditions.

The voltage during a rapid voltage change must not exceed the voltage dip and/or the voltage swell threshold, as it would otherwise be considered as a voltage dip or swell.

The characteristic parameter of the rapid voltage change is the difference between the steady-state value reached after the change and the initial steady-state value.

The PMC-680i provides the ability to capture RVC in accordance with the IEC 61000-4-30 Standard

and records in PQ Log and High-speed Recording with event timestamp, event type, and event

characteristics.

4.4.10.1 RVC Setpoint

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Setup Parameters

Definition

Options

RVC Enable

Specifies if RVC Setpoint is enabled.

Disabled* / Enabled

Detection Mode

Specifies detection mode of the RVC.

0*= Steady-state Volt. Change

1= Maximum Volt. Change

RVC Voltage

Tolerance

Maximum allowable fluctuation between the maximum and minimum voltage values during the steady state condition. For example, the voltage tolerance is 0.5% that is the allowable fluctuation max voltage is 0.005Vll

nominal.

0.1% to 100% ULL

nominal

RVC SS Duration Min.

Minimum duration to reach the steady-state condition.

0.1 to 10 seconds

RVC VStep Min.

Minimum voltage step change between two steady-state conditions

0.1% to 100% ULL

nominal

RVC Rate Change Min.

Minimum rate of change between two steady-state conditions.

0.1%/second to 100%/second

RVC Trigger

Output Specify what action a setpoint can take when RVC become active.

WFR* / DWR

Figure 4-22 Rapid Voltage Changes

The RVC Setpoint provides the following setup parameters which can be programmed through the

Front Panel, web or over communications:

*default

To reach the steady-state condition, the voltage fluctuation (voltage difference in RMS between Max.

and Min.) must be less than RVC Voltage Tolerance for a period longer than RVC SS Duration Min.

For the RVC Setpoint to trigger, the following conditions must be met:

a) The voltage step change between two steady-state conditions is greater than RVC VStep Min.

b) The rate of change between two steady-state conditions is greater than RVC Rate Change Min.

c) The voltage during a rapid voltage change must not exceed the voltage dip and/or the voltage

swell threshold, as it would otherwise be considered as a voltage dip or swell.

Table 4-26 Setup Parameters for RVC Setpoint

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4.4.10.2 WFR of RVC Event

Figure 4-23 RVC Setup via Front Panel and Web

4.4.11 Inrush Current

Figure 4-24 WFR of a RVC Event

Figure 4-25 RMS Plot of the same RVC Event

As per IEC 61000-4-30:

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Setup Parameters

Definition

Options

Inrush Current Enable

Specifies if inrush current setpoint is enabled.

0*=Disabled, 1=Enabled

Inrush Current Threshold

Defines the range that current must exceed for the

Inrush Current becomes active.

100% to 500% (Default=120)

Inrush Current Hysteresis

Defines the limit, which is equal to Inrush Threshold

- Inrush Hysteresis, for the I

half cycle rms

current below

which the inrush transient end

1-1000(x0.1%)

(Default = 10)

Inrush Current Trigger

Specify what action a setpoint can take when Inrush

Current become active

DO/RO Closed / DR / HS-DR / WFR* /

DWR

The inrush current begins when the I equal to or below the Inrush Threshold minus a user-selected Inrush Hysteresis value.

The inrush current can be further characterized by

 the time duration between the beginning and the end of the inrush current  the maximum value of inrush current measured I  the square root of the mean of the squared I

current rises above the Inrush Threshold, and ends when the I

half cycle rms

value

half cycle rms

values measured during the inrush duration

half cycle rms

current is

Inrush current refers to the maximum instantaneous current drawn by an electrical device, often

several times their normal full-load current, when first energized such as the turning on of an AC

electric motor or the energization of a transformer or a capacitor bank. The higher than normal

inrush current typically only lasts for a few cycles before returning to their steady state condition.

Figure 4-26 Inrush Current

The PMC-680i provides the capability for detecting and the capturing of the inrush current transient

disturbance that is in accordance with the IEC 61000-4-30 Standard for Class A performance.

4.4.11.1 Inrush Current Setpoint

The PMC-680i provides following programmable parameters for Inrush Current Setpoint which can be

set via the Front Panel or though communication.

*default

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Table 4-27 Setup Parameters for Inrush Current Setpoint

Table 4-27 Setup Inrush Current Setpoint via Front Panel and Web

4.4.11.2 WFR of Inrush Current Event

Figure 4-28 WFR of an Inrush Current Event @ 128 samples/cycle

Figure 4-29 WFR of an Inrush Current Event @ 512 samples/cycle

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Bit 15~Bit 5

Bit 4

Bit 3

Bit 2

Bit1

Bit 0

Reserved

QR Log

EN50160

Min. Log

Max. Log

SDR Log

Disabled/Enabled

Bit

Description

Bit

Description

Basic Measurement

Dip

Pst.

Dip

Swell

Interruption

B10

Interruption

Over Current Limit

B11

Reserved

Freq.

Dip

B12

Plt.

Dip

Swell

B13

Swell

Interruption

B14

Interruption

Reserved

B15

Reserved

4.4.12 Flagging Concept

As per Section 4.7 of IEC 61000-4-30:

During a dip, swell, or interruption, the measurement algorithm for other parameters (for example, frequency measurement) might produce an unreliable value. The flagging concept therefore avoids counting a single event more than once in different parameters (for example, counting a single dip as both a dip and a frequency variation) and indicates that an aggregated value might be unreliable.

Flagging is only triggered by dips, swells and interruptions. The detection of dips and swells is dependent on the threshold selected by the user, and this selection will influence which data are "flagged".

The flagging concept is applicable for Class A measurement performance during measurement of power frequency, voltage magnitude, flicker, supply voltage unbalance, voltage harmonics, voltage interharmonics, mains signalling and measurement of underdeviation and overdeviation parameters.

If during a given time interval any value is flagged, the aggregate value indicating that value shall also be flagged. The flagged value shall be stored and also included in the aggregation process, for example, if during a given time interval any value is flagged the aggregated value that includes this value shall also be flagged and stored.

The PMC-680i is a certified IEC 61000-4-30 Class A device so it supports the Flagging Concept.

Flagging Setup The Flagging Setup register (40825) defines if Flagging is enabled for a particular

type of Statistical Log as illustrated in the following table, with a bit value of 1

meaning that Flagging is enabled for the corresponding Log type.

Table 4-28 Flagging Setup Register (40825)

Flagging Status This register indicates if a particular type of data has been flagged with a bit value

of 1 meaning flagged and 0 meaning not flagged. The following table illustrates

the details of the Flagging Status register for real-time data.

Statistical Log For any Statistical Log (such as SDR Log, Max. Log, Min. Log and/or EN50160 Log), its

Table 4-29 Flagging Status Register (0080)

log entry will be discarded and will not be included in the statistical evaluation if any

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Score

Level

0–29

Low

30–69

Medium

70–100

High

data within the log entry has been Flagged while the bit representing the particular

Log type in the Flagging Setup register is enabled (set to 1).

Real-time Data Real-time data via Modbus communications will only refresh after the Flagging

Status register has been read if Bit 15 of the Flagging Setup register is enabled (set

to 1) and if Flagging is active. Conversely, real-time data via Modbus

communications will automatically refresh if Bit 15 of the Flagging Setup register is

disabled (set to 0) so there is no need to read the Flagging Status register before

reading the real-time data.

Real-time data includes Frequency, Voltage, Current, Unbalance, Harmonics and

Interharmonics measurements.

4.4.13 Disturbance Direction Location

The PMC-680i has disturbance direction detection capabilities to enable you to determine the

location of a disturbance, whether it's upstream or downstream, from multiple meters in a power

monitoring system more quickly and accurately. When the Dip starts, the PMC-680i start detect

location automatically and provide confidence by calculating power characters, and the direction

information and the confidence level are recorded as PQ Log.

Table 4-30 Confidence Level

Figure 4-30 Disturbance Direction Location

4.4.14 EN50160 Compliance Report

The EN50160 Standard defines the Voltage Characteristics of Electricity Supplied by Public

Distribution Systems. It provides the limits within which any customer can expect voltage

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characteristics to remain. For a complete definition of the non-conformity level for each of the

following EN50160 parameters, please consult the EN50160 Standard document.

The PMC-680i can measure, summarize data and statistics relevant data in accordance with the

EN50160 standard. In addition, the device is capable of creating a report per week for the following

PQ parameters and the report can be stored for one year.

 Power Frequency, including Maximum and Minimum  Supply Voltage Variations, including Maximum and Minimum  Flicker, including Max./Min. and CP95  Voltage Unbalance, including Max./Min. and CP95  Harmonic Voltage, including Max./Min., Avg. and CP95  Mains Signal Voltage, including Max./Min. and CP95  Rapid Voltage Changes  Swell and Dips, statistic parameters classified according to characteristic voltage and duration  Interruption, statistics parameters classified according to duration  Transient

The programming of EN50160 Log only supports communications, please refer to section 5.9.18 to set

parameters for each item. EN50160 Report can be accessed through the Front Panel or via

communications. The PMC-680i can store up to 52 logs, if there are more than 52 logs, the newest

log will replace the oldest on a FIFO basis.

The following screen captures illustrate the PMC-680i’s EN50160 Compliance Report available on its

Front Panel and Web Interface.

4.4.15 Disturbance Waveform Recorder (DWR)

The PMC-680i provides disturbance waveform recording including Ua/Ub/Uc/U4 and Ia/Ib/Ic/I4/I5.

The disturbance waveform recording can be triggered by dip, swell, transient, rapid voltage changes,

setpoint event, DI status changes and communications. The Disturbance Waveform data is stored in

the device’s non-volatile memory with COMTRADE file format and will not suffer any loss in the event

Figure 4-31 EN50160 Report Display via Front Panel and Web

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A B C D E F

Initial Stage Ending StageSteady Stage

Stage

Description

Recording Length

Recording Frequency

Pre-Fault cycles for the Initial Stage

5 to 10 cycles

512 Samples/Cycle

Waveform Recording of the Initial Stage

25 to 35 cycles

512 Samples/Cycle

Waveform Recording during the Steady Stage

0 to 150 cycles

16 Samples/Cycle

RMS Recording during the Steady Stage

0 to 18,000 cycles

1 Sample/Cycle

Pre-Fault cycles of the Ending Stage

2 cycles

512 Samples/Cycle

Waveform Recording of the Ending Stage

13 cycles

512 Samples/Cycle

of power failure. The PMC-680i can store DWR logs up to 128 entries @4GB or 256 entries @8GB.

Each disturbance waveform recording consists of the following stages.

Figure 4-32 Disturbance Location

Table 4-31 Time frames of waveform

Notes:

1) For stages C and D:

If C < 150 cycles, the D would be 0.

If C = 150 cycles, the D stage data will be recorded.

If D = 18,000 cycles, the recording of D stage data end even if disturbance does not finish. After 10 minutes, the E and F stage data will be recorded.

3) The following figure shows an example of Disturbance Waveform Recording.

Figure 4-33 Disturbance Waveform Recorder

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Setup Parameters

Definition

Options

PQ Curve

Set display ITIC or SEMI F47 curve for PQ event.

SEMI F47 only for Dip event.

0=ITIC (default)

1=SEMI F47

Figure 4-34 DWR Setup via Front Panel and Web

4.4.16 ITIC/SEMI F47 Curve

The ITIC Curve describes an AC input voltage which typically can be tolerated (no interruption in

function) by most Information Technology Equipment (ITE), while SEMI F47 is specification for

Semiconductor Processing Equipment Voltage Dip Immunity, which specifies the required voltage Dip

tolerance for semiconductor fabrication equipment.

ITIC SEMI F47

Figure 4-35 ITIC and SEMI F47

PMC-680i’s Front Panel or Web can display ITIC or SEMI F47 curve for PQ Events. Display ITIC or

SEMI F47 can be set via the Web or communication.

Table 4-32 ITIC/SEMI F47 Curve Setup Parameter

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CET PMC-680i User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

Glossary

Chapter 1 Introduction

1.1 Overview

1.2 Features

1.3 PMC-680i’ application in Power and Energy Management and Analyzer Systems

1.4 Getting more information

Chapter 2 Installation

2.1 Appearance

2.2 Unit Dimensions

2.3 Mounting

2.4 Wiring Connections

2.4.1 3-phase 4-wire Wye Direct Connection

2.4.2 3-phase 4-wire Wye with 3PTs and 4CTs

2.4.3 3-phase 3-wire Grounded Wye Direct Connection

2.4.4 3-phase 3-wire Grounded Wye with 3PTs and 3CTs

2.4.5 3-phase 3-wire Grounded Delta Connection

2.4.6 3-phase 3-wire Delta with 2PTs and 3CTs

2.4.7 3-phase 3-wire Delta with 2PTs and 2CTs

2.5 Communications Wiring

2.5.1 Ethernet Port (10/100BaseT)

2.5.2 RS485 Port

2.6 Digital Input Wiring

2.7 GPS 1PPS Input wiring

2.8 Digital Output Wiring

2.9 RO Wiring

2.10 Pulse Output Wiring

2.11 Power Supply Wiring

2.12 Chassis Ground Wiring

Chapter 3 User Interface

3.1 Front Panel Interface

3.1.1 Display Hierarchy and Menu Tree

3.1.2 Navigating the Front Panel User Interface

3.2 Web Interface

3.2.1 Setting PC's IP Address

3.2.2 Configure PMC-680i's IP Addresses

3.2.3 Enabling Java Scripting in Google Chrome

3.2.4 Web Interface

3.2.4.1 Metering

3.2.4.1.1 Phasors

3.2.4.1.2 Real Time

3.2.4.1.3 Power Quality

3.2.4.1.4 Harmonics

3.2.4.1.5 Interharmonics

3.2.4.1.6 Demand

3.2.4.1.7 Energy

3.2.4.1.8 TOU

3.2.4.1.9 Waveform

3.2.4.1.10 I/O

3.2.4.2 Statistics

3.2.4.2.1 Counters

3.2.4.2.2 SOE

3.2.4.2.3 PQ Log

3.2.4.2.4 Max./Min. Log

3.2.4.2.5 SDR Trend

3.2.4.2.6 PQDIF

3.2.4.2.7 COMTRADE

3.2.4.2.8 EN50160

3.2.4.3 Setup

3.2.4.3.1 Basic Setup

3.2.4.3.2 PQ Setup

3.2.4.3.3 Demand Setup

3.2.4.3.4 Energy Setup

3.2.4.3.5 Recorder Setup

3.2.4.3.6 I/O Setup

3.2.4.3.7 COMM Setup

3.2.4.3.8 Clock Setup

3.2.4.3.9 Password Setup

3.2.4.3.10 Clear

3.2.4.5 Diagnostics

3.2.4.5.1 Diagnostics

3.2.4.4.2 Maintenance

3.2.4.6 Customization

Chapter 4 Applications

4.1 Inputs and Outputs

4.1.1 Digital Inputs