Schneider Electric 4000 User Manual

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Page 1

63230-300-212

Instruction Bulletin

POWERLOGIC®Circuit Monitor

Series 4000 Reference Manual

Retain for future use

April 2001

Page 2

NOTICE

Read these instructions carefully and look at the equipment to become familiar with the device before trying to install, operate, service, or maintain it. The following special messages may appear throughout this bulletin or on the equipment to warn of potential hazards or to call attention to information that clarifies or simplifies a procedure.

The addition of either symbol to a “Danger” or “Warning” safety label indicates that an electrical hazard exists which will result in personal injury if the instructions are not followed.

This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.

DANGER

DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

WARNING

WARNING indicates a potentially hazardous situation which, if not avoided, can result in death or serious injury.

PLEASE NOTE

Class A FCC Statement

CAUTION

CAUTION indicates a potentially hazardous situation which, if not avoided, can result in minor or moderate injury.

CAUTION

CAUTION, used without the safety alert symbol, indicates a potentially hazardous situation which, if not avoided, can result in property damage.

NOTE: Provides additional information to clarify or simplify a procedure.

Electrical equipment should be installed, operated, serviced, and maintained only by qualified personnel. This document is not intended as an instruction manual for untrained persons. No responsibility is assumed by Square D for any consequences arising out of the use of this manual.

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designated to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

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63230-300-212 POWERLOGIC® Circuit Monitor Series 4000 Reference Manual April 2 001 Contents

CONTENTS ................................................ I

LISTOFFIGURES ..........................................VII

LISTOFTABLES ...........................................IX

CHAPTER 1—INTRODUCTION ................................1

CHAPTERCONTENTS .......................................1

WHATISTHECIRCUITMONITOR? .............................2

AccessoriesandOptionsfortheCircuitMonitor .................3

Features................................................4

TOPICSNOTCOVEREDINTHISBULLETIN ......................4

FIRMWARE ................................................5

CHAPTER 2—SAFETY PRECAUTIONS ..........................7

CHAPTER 3—OPERATION ....................................9

CHAPTERCONTENTS .......................................9

OPERATINGTHEDISPLAY ..................................10

HowtheButtonsWork ....................................10

DisplayMenuConventions ................................11

SelectingaMenuOption ..............................11

Changing a Value ....................................11

MAINMENUOVERVIEW .....................................12

CONFIGURING THE CIRCUIT MONITOR USING THE

SETUPMENU .............................................13

SettingUptheDisplay ....................................13

SettingUptheCommunications ............................14

SettingtheDeviceAddress ............................14

RS-485, RS-232, and Infrared Port Communications Setup . . . 15

EthernetCommunicationsCard(ECC)Setup ..............16

SettingUptheMeteringFunctionsoftheCircuitMonitor .........16

SettingUpAlarms .......................................18

CreatingaNewCustomAlarm ..........................19

SettingUpandEditingAlarms ..........................21

SettingUpI/Os .........................................23

Selecting I/O Modules . ...............................23

ConfiguringI/OModules ...............................25

SettingUpPasswords ....................................27

AdvancedSetupFeatures .................................28

CreatingCustomQuantitiestobeDisplayed ...............28

CreatingCustomScreens .............................31

Viewing Custom Screens ..............................34

AdvancedMeterSetup ................................34

RESETTINGMIN/MAX,DEMAND,ANDENERGYVALUES .........37

VIEWINGMETEREDDATA ...................................38

ViewingMeteredDatafromtheMetersMenu ..................38

Viewing Minimum and Maximum Values from the

Min/MaxMenu ..........................................39

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POWERLOGIC® Circuit Monitor Series 4000 Reference Manual 63230-300-212 Contents April 2001

VIEWINGALARMS ..........................................41

ViewingActiveAlarms ....................................42

View and Acknowledging High Priority Alarms .................42

VIEWINGI/OSTATUS .......................................43

READINGANDWRITINGREGISTERS ..........................44

PERFORMINGAWIRINGERRORTEST ........................45

Running the Diagnostics Wiring Error Test . . ..................46

CHAPTER 4—METERING CAPABILITIES .......................51

CHAPTERCONTENTS ......................................51

REAL-TIMEREADINGS ......................................52

MIN/MAXVALUESFORREAL-TIMEREADINGS ..................53

PowerFactorMin/MaxConventions .........................54

VARSignConventions ................................55

DEMANDREADINGS........................................56

Demand Power Calculation Methods . ........................57

BlockIntervalDemand ................................57

SynchronizedDemand ................................59

DemandCurrent ........................................59

DemandVoltage ........................................59

ThermalDemand ........................................60

PredictedDemand .......................................60

PeakDemand ..........................................61

GenericDemand ........................................61

InputPulseDemandMetering ..............................62

ENERGYREADINGS ........................................64

POWERANALYSISVALUES..................................66

CHAPTER 5—INPUT/OUTPUT CAPABILITIES . ..................69

CHAPTERCONTENTS ......................................69

I/OOPTIONS ..............................................70

DIGITALINPUTS ...........................................71

DEMANDSYNCHPULSEINPUT ..............................72

ANALOGINPUTS ...........................................73

AnalogInputExample ....................................74

RELAYOUTPUTOPERATINGMODES .........................75

MECHANICALRELAYOUTPUTS ..............................77

Setpoint-controlledRelayFunctions .........................78

SOLID-STATEKYZPULSEOUTPUT ...........................78

2-WirePulseInitiator .....................................79

3-WirePulseInitiator .....................................79

CALCULATINGTHEKILOWATTHOUR-PER-PULSEVALUE.........80

ANALOGOUTPUTS .........................................81

AnalogOutputExample ...................................82

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63230-300-212 POWERLOGIC® Circuit Monitor Series 4000 Reference Manual April 2 001 Contents

CHAPTER 6—ALARMS . .....................................83

CHAPTERCONTENTS ......................................83

ABOUTALARMS ...........................................84

AlarmsGroups ..........................................84

Setpoint-DrivenAlarms ...................................85

Priorities ...............................................87

AlarmLevels ...........................................87

CUSTOMALARMS..........................................88

SETPOINT-CONTROLLEDRELAYFUNCTIONS ..................88

TypesofSetpoint-ControlledRelayFunctions .................89

SCALEFACTORS ..........................................91

SCALINGALARMSETPOINTS ................................92

ALARMCONDITIONSANDALARMNUMBERS ...................93

CHAPTER 7—LOGGING . ....................................99

CHAPTERCONTENTS ......................................99

ALARMLOG ..............................................100

AlarmLogStorage ......................................100

DATALOGS ..............................................100

Alarm-DrivenDataLogEntries ............................101

OrganizingDataLogFiles ................................101

DataLogStorage.......................................101

MIN/MAXLOGS ...........................................102

Min/MaxLog ..........................................102

IntervalMin/Max/AverageLog .............................102

IntervalMin/Max/AverageLogStorage ..................103

MAINTENANCELOG .......................................103

MEMORYALLOCATION ....................................104

CHAPTER 8—WAVEFORM AND EVENT CAPTURE .............107

CHAPTERCONTENTS .....................................107

TYPES OF WAVEFORM CAPTURES . . ........................108

Steady-stateWaveformCapture ...........................108

InitiatingaSteady-stateWaveform......................108

DisturbanceWaveformCapture ...........................108

Adaptive Waveform Capture ..............................109

100ms rms Event Recording ..............................110

SETTING UP THE CIRCUIT MONITOR FOR AUTOMATIC EVENT

CAPTURE................................................111

Setting Up Alarm-Triggered Event Capture . ..................111

SettingUpInput-TriggeredEventCapture ...................111

WAVEFORM STORAGE . ...................................111

HOW THE CIRCUIT MONITOR CAPTURES AN EVENT ...........112

iii

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POWERLOGIC® Circuit Monitor Series 4000 Reference Manual 63230-300-212 Contents April 2001

CHAPTER 9—DISTURBANCE MONITORING . . .................113

CHAPTERCONTENTS .....................................113

ABOUTDISTURBANCEMONITORING.........................114

CAPABILITIES OF THE CIRCUIT MONITOR DURING AN EVENT . . .117

USING THE CIRCUIT MONITOR WITH SMS TO PERFORM

DISTURBANCEMONITORING ...............................118

UNDERSTANDING THE ALARM LOG . . . .......................119

CHAPTER 10—MAINTENANCE AND TROUBLESHOOTING . ......121

CHAPTERCONTENTS .....................................121

CIRCUIT MONITOR MEMORY . . .............................123

UpgradingMemoryintheCircuitMonitor ....................123

IDENTIFYINGTHEFIRMWAREVERSION ......................124

VIEWINGTHEDISPLAYINDIFFERENTLANGUAGES ............124

CALIBRATION OF THE CURRENT/VOLTAGE MODULE (CVM) . . . .124

GETTING TECHNICAL SUPPORT ............................124

TROUBLESHOOTING ......................................125

APPENDIX A—ABBREVIATED REGISTER LISTING . ............127

CONTENTS ..............................................127

ABOUTREGISTERS .......................................127

HOWPOWERFACTORISSTOREDINTHEREGISTER...........128

HOWDATEANDTIMEARESTOREDINTHEREGISTER .........129

REGISTERLISTING ........................................130

APPENDIXB—USINGTHECOMMANDINTERFACE .............181

CONTENTS ..............................................181

OVERVIEWOFTHECOMMANDINTERFACE ...................182

IssuingCommands .....................................183

I/OPOINTNUMBERS ......................................186

OPERATINGOUTPUTSFROMTHECOMMANDINTERFACE ......187

USING THE COMMAND INTERFACE TO CHANGE CONFIGURATION

REGISTERS ..............................................187

CONDITIONALENERGY ....................................188

CommandInterfaceControl ...............................188

Digital Input Control . . . ..................................188

INCREMENTAL ENERGY . ..................................189

UsingIncrementalEnergy ................................189

SETTINGUPINDIVIDUALHARMONICCALCULATIONS ..........190

CHANGINGSCALEFACTORS ...............................191

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63230-300-212 POWERLOGIC® Circuit Monitor Series 4000 Reference Manual April 2 001 Contents

GLOSSARY ..............................................193

INDEX...................................................197

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POWERLOGIC® Circuit Monitor Series 4000 Reference Manual 63230-300-212 Contents April 2001

Page 9

63230-300-212 List of Figures April 2 001

LIST OF FIGURES

Figure 3–1: Arrowonthedisplayscreen........................ 10

Figure 3–2: Displaybuttons.................................. 10

Figure 3–3: Partsofamenu ................................. 11

Figure 3–4: MenuoptionsontheMainMenu .................... 12

Figure 3–5: Menusthatcanbepasswordprotected............... 27

Figure 3–6: PerformingresetsfromtheResetmenu .............. 37

Figure 3–7: Viewing metered data on the Meters and Min/Max

menus......................................... 38

Figure 3–8: ViewAlarmsmenu............................... 41

Figure 3–9: DiagnosticsMenuaccessedfromtheMainMenu....... 44

Figure 3–10: Wiring Error Test option on the Diagnostics menu. ...... 45

Figure 4–1: Powerfactormin/maxexample ..................... 54

Figure 4–2: Reactive Power—VARsignconvention............... 55

Figure 4–3: BlockIntervalDemandExamples ................... 58

Figure 4–4: ThermalDemandExample......................... 60

Figure 4–5: PredictedDemandExample........................ 60

Figure 4–6: Channel pulse metering example. . .................. 63

Figure 4–7: Reactiveenergyaccumulatesinfourquadrants ........ 65

Figure 5–1: Demandsynchpulsetiming........................ 72

Figure 5–2: Analoginputexample............................. 74

Figure 5–3: Two-wirepulsetrain.............................. 79

Figure 5–4: Three-wirepulsetrain............................. 79

Figure 5–5: Analogoutputexample............................ 82

Figure 6–1: Samplealarmlogentry ........................... 86

Figure 6–2: How the circuit monitor handles setpoint-driven alarms. . . 86

Figure 6–3: Two alarms set up for the same quantity with different

pickup and dropout set points 87

Figure 7–1: Memoryallocationexample....................... 104

Figure 7–2: MemoryallocationinSMS........................ 105

Figure 8–1: Event capture initiated from a high-speed input. . ...... 112

Figure 9–1: A fault can cause voltage sag on the whole system. . . . . 115

Figure 9–2: Waveform showing voltage sag, which was caused by a

remote fault and lasted five cycles. 115

Figure 9–3: OnboardFilestab............................... 118

Figure 9–4: OnboardAlarms/Eventstab....................... 118

Figure 9–5: Eventlogentriesexample ........................ 119

Figure 9–6: Samplealarmlogentry .......................... 119

Figure 10–1: Memorychiplocationinthecircuitmonitor ........... 123

Figure A–1: Bitsinaregister................................ 128

Figure A–2: Powerfactorregisterformat....................... 128

Figure B–1: CommandInterfacePointerRegisters............... 182

Figure B–2: Identifying I/Os for the command interface............ 186

Figure B–3: IncrementEnergyExample ....................... 189

vii

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List of Figures 63230-300-212

April 2001

viii

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63230-300-212 List of Tables April 2 001

LIST OF TABLES

Table 1–1: SummaryofCircuitMonitorInstrumentation ............ 2

Table 1–2: Circuit Monitor Parts, Accessories, and Custom Cables . . . 3

Table 3–1: FactoryDefaultsfortheDisplaySettings.............. 14

Table 3–2: OptionsforCommunicationsSetup.................. 15

Table 3–3: OptionsforMeterSetup........................... 17

Table 3–4: OptionsforCreatinganAlarm ...................... 20

Table 3–5: OptionsforEditinganAlarm ....................... 22

Table 3–6: I/ODescriptions ................................. 24

Table 3–7: OptionsforPasswordSetup........................ 27

Table 3–8: OptionsforCustomQuantities...................... 30

Table 3–9: Available Default Quantities ........................ 33

Table 3–10: OptionsforAdvancedMeterSetup .................. 36

Table 3–11: Read/WriteRegisterOptions....................... 44

Table 3–12: Wiring Error Messages............................ 48

Table 4–1: One-Second, Real-Time Readings Samples ........... 52

Table 4–2: 100msReal-TimeReadings ....................... 53

Table 4–3: DemandReadings............................... 56

Table 4–4: EnergyReadings ................................ 64

Table 4–5: PowerAnalysisValues............................ 68

Table 5–1: I/ O Extender Options ............................. 70

Table 5–2: Sample register readings for analog inputs ............ 74

Table 5–3: Sample register readings for analog output ............ 82

Table 6–1: Scale Groups ................................... 91

Table 6–2: ScaleGroupRegisterNumbers..................... 92

Table 6–3: ListofDefaultAlarmsbyAlarmNumber .............. 94

Table 6–4: AlarmTypes.................................... 96

Table 7–1: Values Stored in Maintenance Log ................. 103

Table 8–1: Available Resolutions for Disturbance Waveform

Captures...................................... 108

Table 8–2: Available Resolutions for Adaptive Waveform

Captures...................................... 109

Table 8–3: 100ms rms Quantities ........................... 110

Table 9–1: Capability of the circuit monitor to measure electromagnetic

phenomena . .................................. 117

Table 10–1: Troubleshooting . . . ............................. 125

Table A–1: DateandTimeFormat........................... 129

Table A–2: DateandTimeByteExample...................... 129

Table A–3: AbbreviatedRegisterList......................... 130

Table A–4: AbbreviatedRegisterListforI/OStatus.............. 166

Table A–5: Registers for Alarm Position Counters . . . ............ 173

Table A–6: Spectral Components ............................ 178

Table B– 1: Locationofthecommandinterface ................. 182

Table B– 2: CommandCodes............................... 183

Table B– 3: RegistersforHarmonicCalculations ................ 190

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List of Tables 63230-300-212

April 2001

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63230-300-212 Chapter 1—Introduction

April 2 001 Chapter Contents

CHAPTER 1—INTRODUCTION

This chapter offers a general description of the Series 4000 Circuit Monitor, tells how to best use this bulletin, and lists related documents.

HAPTER CONTENTS

CHAPTERCONTENTS .......................................1

WHATISTHECIRCUITMONITOR? .............................2

AccessoriesandOptionsfortheCircuitMonitor .................3

Features................................................4

TOPICSNOTCOVEREDINTHISBULLETIN ......................4

FIRMWARE ................................................5

Page 14

Chapter 1—Introduction 63230-300-212

What is the Circuit Monitor? April 2001

HAT IS T HE CIRCUIT MONITOR?

Table 1–1: Summary of Circuit Monitor Instrumentation

• Current (per phase, N, G, 3-Phase)

• Voltage ( L–L, L–N, N–G, 3-Phase)

• Real Power (per phase, 3-Phase

• Reactive Power (per phase, 3-Phase)

• Apparent Power (per phase, 3-Phase)

• Power Factor (per phase, 3-Phase)

• Frequency

• Temperature (internal ambient)

• THD (current and voltage)

• K-Factor (per phase)

• Demand Current (per phase present, 3-Phase avg.)

• Demand Voltage (per phase present, 3-Phase avg.)

• Average Power Factor (3-Phase total)

• Demand Real Power (per phase present, peak)

• Demand Reactive Power (per phase present, peak)

• Demand Apparent Power (per phase present, peak)

• Coincident Readings

• Predicted Power Demands

The circuit monitor is a multifunction, digital instrumentation, data acquisition and control device. It can replace a variety of meters, relays, transducers and other components. The circuit monitor can be located at the service entrance to monitor the cost and quality of power, and can be used to evaluate the utility service. When located at equipment mains, the circuit monitor can detect voltage-based disturbances that cause costly equipment downtime.

The circuit monitor is equipped with

RS-485 and RS-232 communications for

integration into any power monitoring and control system. However, System Manager™ software (

SMS)fromPOWERLOGIC, which is written specifically

for power monitoring and control, best supports the circuit monitor’s advanced features.

The circuit monitor is a true rms meter capable of exceptionally accurate measurement of highly nonlinear loads. A sophisticated sampling technique enables accurate, true rms measurement through the 255th harmonic. You can view over 50 metered values plus extensive minimum and maximum data from the display or remotely using software. Table 1–1 summarizes the readings available from the circuit monitor.

Real-Time Readings Energy Readings

• Accumulated Energy, Real

• Accumulated Energy, Reactive

)

DemandReadings Power Analysis Values

• Accumulated Energy, Apparent

• Bidirectional Readings

• Reactive Energy by Quadrant

• Incremental Energy

• Conditional Energy

• Crest Factor (per phase)

• Displacement Power Factor (per phase, 3-Phase

• Fundamental Voltages (per phase)

• Fundamental Currents (per phase)

• Fundamental Real Power (per phase)

• Fundamental Reactive Power (per phase)

• Harmonic Power

• Unbalance (current and voltage)

• Phase Rotation

• Harmonic Magnitudes & Angles (per phase)

• Sequence Components

)

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63230-300-212 Chapter 1—Introduction April 2 001 What is the Circuit Monitor?

Accessories and Options for the Circuit Monitor

The circuit monitor has a modular design to maximize its usability. In addition to the main meter, the circuit monitor has plug-on modules and accessories, including:

• Current/voltage module (CVM). A standard part of the circuit monitor is

the current/voltage module where all metering data acquisition occurs.

• Remote display . The optional remote 4-line display is available with a

back-lit liquid crystal display (LCD) or a vacuum fluorescent display (VFD). The VFD model includes an infrared port that can be used to communicate directly with the circuit monitor from a laptop and can be used to download firmware, which keeps the circuit monitor up to date with the latest system enhancements.

• I/O Extender. The I/O extender, located on the side of the circuit monitor,

enables you to “plug in” up to 8 industry-standard inputs and outputs. Several preconfigured combinations are available, or you can create a custom configuration.

• Digital I/O Card. You can further expand the I/O capabilities of the circuit

monitor by adding a digital I/O card (4 inputs and 4 outputs). This card fits into one of the option slots on the top of the circuit monitor.

• Ethernet Communications Card. The Ethernet communications card

provides an Ethernet port that accepts a 100 Mbps fiber optic cable or a 10/100 Mbps UTP and provides an RS-485 master port to extend the circuit monitor communications options. This card is easily installed into option slot A on the top of the circuit monitor.

Table 1–2 lists the circuit monitor parts and accessories and their associated instruction bulletins.

Table 1–2: Circuit Monitor Parts, Accessories, and Custom Cables

Description Part Number Document Number

Circuit Monitor CM4000 63230-300-200

Current/Voltage Module CVM 63230-301-200

VFD Display with infrared (IR) port and proximity sensor CMDVF

LCD Display CMDLC

Optical Communications Interface (for use with the VFD display only) OCIVF 63230-306-200

I/O Extender Module

with no preinstalled I/ Os, accepts up to 8 individual I/O modules with a maximum of 4 analog I / Os

with 4 digital inputs (32 Vdc), 2 digital outputs ( 60 Vdc), 1 analog output (4–20 mA), and 1 analog input (0–5Vdc)

with 4 analog inputs (4–20 mA) and 4 digital inputs (120 Vac) IOX0404

with 8 digital inputs (120 Vac) IOX08

Digital I/O Card Field installable with 4 digital inputs (120 Vac), 3 (10 A) relay outputs (120Vac), 1 pulse output (KYZ)

Ethernet Communications Card with 100 Mbps fiber or 10/100 Mbps UTP Ethernet port and 1 RS-485 master port

Optical Communications Interface OCIVG 63230-306-200

Memory Expansion Kit (16 MB and 32 MB kits)



For parts list of individual inputs and outputs, see Table 5–1onpage70.



IOX

IOX2411

IOC44 63230-303-200

ECC21 63230-304-200

CM4MEM16M CM4MEM32M

63230-305-200

63230-302-200

63230-300-205

Page 16

Chapter 1—Introduction 63230-300-212 Topics Not Covered in This Bulletin April 2001

Table 1–2: Circuit Monitor Parts, Accessories, and Custom Cables

63230-204-316

CM4 Mounting Adapters CM4MA

4-ft display cable (1.2 m) CAB-4

12-ft display cable (3.6 m) CAB-12

30-ft display cable (9.1 m) CAB-30

10-ftRS-232cable(3m) CAB-106



For parts list of individual inputs and outputs, see Table 5–1onpage70.

63230-300-206 63230-305-201

N/A

Features

Some of the circuit monitor’s many features include:

• True rms metering to the 255th harmonic

• Accepts standard CT and PT inputs

• 600 volt direct connection on metering inputs

• Certified ANSI C12.20 revenue accuracy and IEC 687.2 class revenue

accuracy

• High accuracy—0.04% current and voltage

• Min/max readings of metered data

• Power quality readings—THD, K-factor, crest factor

• Real-time harmonic magnitudes and angles to the 63rd harmonic

• Current and voltage sag/ swell detection and recording

• Downloadable firmware

• Easy setup through the optional remote display (password protected)

where you can view metered values

• Setpoint-controlled alarm and relay functions

• Onboard alarm and data logging

• Wide operating temperature range –25° to 70°C

• Modular, field-installable digital and analog I/O modules

• Flexible communications—RS-485 and RS-232 communications are

standard, optional Ethernet communications card available with fiber optic connection

• Two option card slots for field-installable I/O and Ethernet capabilities

• Standard 8MB onboard logging memory (field upgradable to 16 MB, 32

MB, and higher

• CT and PT wiring diagnostics

• Revenue security with utility sealing capability

TOPICS NOT COVERED IN THIS BULLETIN

Some of the circuit monitor’s advanced features, such as onboard data logs and alarm log files, can only be set up over the communications link using

SMS. SMS versions 3.12 and higher support the CM4000 device type.This

circuit monitor instruction bulletin describes these advanced features, but does not tell how to set them up. For instructions on using

SMS online help and the

SMS-3000 Setup Guide,

which is available in

SMS,refertothe

English (63220-060-200), French (63220-060-201), and Spanish (63220060-202). For information about related instruction bulletins, see Table 1–2 on page 3.

Page 17

63230-300-212 Chapter 1—Introduction April 2 001 FirmwAre

FIRMWARE

This instruction bulletin is written to be used with firmware version 11.000 or higher. See “Identifying the Firmware Version” on page 124 for instructions on how to determine the firmware version.

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Chapter 1—Introduction 63230-300-212 FirmwAre April 2001

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63230-300-212 Chapter 2—Safety Precautions April 2 001

CHAPTER 2—SAFETY PRECAUTIONS

This chapter contains important safety precautions that must be followed before attempting to install, service, or maintain electrical equipment. Carefully read and follow the safety precautions outlined below.

DANGER

HAZARD OF ELECTRIC SHOCK, BURN, OR EXPLOSION

• Only qualified workers should install this equipment. Such work should be performed only after reading this entire set of instructions.

• NEVER work alone.

• Before performing visual inspections, tests, or maintenance on this

equipment, disconnect all sources of electric power. Assume that all circuits are live until they have been completely de-energized, tested, and tagged. Pay particular attention to the design of the power system. Consider all sources of power, including the possibility of backfeeding.

• Turn off all power supplying this equipment before working on or inside.

• Always use a properly rated voltage sensing device to confirm that all power is off.

• Beware of potential hazards, wear personal protective equipment, carefully inspect the work area for tools and objects that may have been left inside the equipment.

• Use caution while removing or installing panels so that they do not extend into the energized bus; avoid handling the panels, which could cause personal injury.

• The successful operation of this equipment depends upon proper handling, installation, and operation. Neglecting fundamental installation requirements may lead to personal injury as well as damage to electrical equipment or other property.

• Before performing Dielectric (Hi-Pot) or Megger testing on any equipment in which the circuit monitor is installed, disconnect all input and output wires to the circuit monitor. High voltage testing may damage electronic components contained in the circuit monitor.

Failure to follow these instructions will result in death or serious injury.

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Chapter 2—Safety Precautions 63230-300-212

April 2001

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63230-300-212 Chapter 3—Operation April 2 001 Chapter Contents

CHAPTER 3—OPERATION

This chapter tells how to set up the circuit monitor from the display only. Some advanced features, such as configuring the onboard logs of the circuit monitor, must be set up over the communications link using

SMS instruction bulletin and online help file for instructions on setting up

advanced features not accessible from the display.

SMS. Refer to the

CHAPTER CONTENTS

CHAPTERCONTENTS .......................................9

OPERATINGTHEDISPLAY ..................................10

HowtheButtonsWork ....................................10

DisplayMenuConventions ................................11

SelectingaMenuOption ..............................11

Changing a Value ....................................11

MAINMENUOVERVIEW .....................................12

CONFIGURING THE CIRCUIT MONITOR USING THE SETUP MENU . 13

SettingUptheDisplay ....................................13

SettingUptheCommunications ............................14

SettingtheDeviceAddress ............................14

RS-485, RS-232, and Infrared Port Communications Setup . . . 15

EthernetCommunicationsCard(ECC)Setup ..............16

SettingUptheMeteringFunctionsoftheCircuitMonitor .........16

SettingUpAlarms .......................................18

CreatingaNewCustomAlarm ..........................19

SettingUpandEditingAlarms ..........................21

SettingUpI/Os .........................................23

Selecting I/O Modules . ...............................23

ConfiguringI/OModules ...............................25

SettingUpPasswords ....................................27

AdvancedSetupFeatures .................................28

CreatingCustomQuantitiestobeDisplayed ...............28

CreatingCustomScreens .............................31

Viewing Custom Screens ..............................34

AdvancedMeterSetup ................................34

RESETTINGMIN/MAX,DEMAND,ANDENERGYVALUES .........37

VIEWINGMETEREDDATA ...................................38

ViewingMeteredDatafromtheMetersMenu ..................38

Viewing Minimum and Maximum Values from the Min/Max Menu . . 39

VIEWINGALARMS..........................................41

ViewingActiveAlarms ....................................42

View and Acknowledging High Priority Alarms . . . ..............42

VIEWINGI/OSTATUS .......................................43

READINGANDWRITINGREGISTERS..........................44

PERFORMINGAWIRINGERRORTEST ........................45

Running the Diagnostics Wiring Error Test . ...................46

Page 22

Chapter 3—Operation 63230-300-212 Operating the Display April 2001

OPERATING THE DISPLAY

MAIN MENU

Meters Min/Max View Alarms

How the But tons Work

The display shows four lines of information at a time. Notice the arrow on the left of the display screen. This arrow indicates that you can scroll up or down to view more information. For example, on the Main Menu you can view the Resets, Setup, and Diagnostics menu options only if you scroll down to display them. When at the top of a list, the arrow moves to the top line. When the last line of information is displayed, the arrow moves to the bottom as illustrated in Figure 3–1.

MAIN MENU

Resets Setup Diagnostics

Figure 3–1: Arrowon the display screen

The buttons on the display let you scroll through and select information, move from menu to menu, and adjust the contrast. Figure 3–2 shows the buttons.

Menu button

Arrow buttons

Contrast button

Enter button

Figure 3–2: Display buttons

The buttons are used in the following way:

• Arrow buttons. Use the arrow buttons to scroll up and down the options

on a menu. Also, when a value can be changed, use the arrow buttons to scroll through the values that are available. If the value is a number, holding the arrow button down increases the speed in which the numbers increase or decrease.

• Menu button. Each time you press the menu button, it takes you back one

menu level. The menu button also prompts you to save if you’ve made changes to any options within that menu structure.

• Enter button. Use the enter button to select an option on a menu or select

a value to be edited.

• Contrast button. Press the contrast button to darken or lighten the

display. On the LCD model, press any button once to activate the back light.

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63230-300-212 Chapter 3—Operation April 2 001 Operating the Display

Display Menu Conventions

Selecting a Menu Option

This section explains a few conventions that were developed to streamline instructions in this chapter. Figure 3–3 shows the parts of a menu.

DISPLAY

Language English Date MM/DD/YYYY Time Format 2400hr

Menu Option

VFD Sensitivity 3 Display Timer 1 Min

Value

Custom Quantity Custom Screen

Figure 3–3: Parts of a menu

Each time you read “select” in this manual, choose the option from the menu by doing this:

1. Press the arrows to highlight the menu option.

2. Press the enter button to select that option.

Changinga Value

To change a value, the procedure is the same on every menu:

1. Use the arrow buttons to scroll to the menu option you want to change.

2. Press the enter button to select the value. The value begins to blink.

3. Press the arrow buttons to scroll through the possible values. To select the new value, press the enter button.

4. Press the arrow buttons to move up and down the menu options. You can change one value or all of the values on a menu. To save the changes, press the menu button until the circuit monitor displays:

“Save changes? No”

NOTE: Pressing the menu button while a value is blinking will return that value to its most current setting.

5. Press the arrow to change to “Ye s, ” then press the enter button to save the changes.

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Chapter 3—Operation 63230-300-212 Main Menu Overview April 2001

MAIN MENU OVERVIEW

MAIN MENU

Meters Min/Max View Alarms

I/O Display

Resets Setup Diagnostics

METERS

Summary Powe r Power Quality Energy Power Demand Current Demand Custom

MIN / MAX

Current Voltage Frequency Powe r Power Factor THD

VIEW ALARMS

Active Alarms List High Priority Log

I/O DISPLAY

Digital Inputs Analog Inputs Digital Outputs Analog Outputs

RESETS

Energy Demand Min/Max

The Main Menu on the display contains the menu options that you use to set up and control the circuit monitor and its accessories and view metered data andalarms.Figure3–4 on the left shows the options on the Main Menu. The menus are briefly described below:

• Meters. This menu lets you view metered values that provide information

about power usage and power quality.

• Min/Max. This menu lets you view the minimum and maximum metered

values since the last reset of the min/max values with their associated dates and times.

• View Alarms. This menu lets you view a list of all active alarms,

regardless of the priority. In addition, you can view a log of high priority alarms, which contains the ten most recent high priority alarms.

• I/O Display. From this menu, you can view the designation and status of

each input or output. This menu will only display the I/Os present, so you might not see all of the available menu items if you do not have a particular I/O installed.

• Resets. This menu lets you reset energy, peak demand, and minimum/

maximum values.

• Setup. From this menu, you define the settings for the display such as

selecting the date format to be displayed. Creating custom quantities and custom screens are also options on this menu. In addition, use this menu to set up the circuit monitor parameters such as the CT and PT ratios. The Setup menu is also where you define the communications, alarms, I/Os and passwords.

• Diagnostics. From this menu, you can initiate the wiring error test. Also,

use this menu to read and write registers and view information about the circuit monitor such as its firmware version and serial number.

SETUP

Date & Time Display Communications Meter Alarm I/O Passwords

DIAGNOSTICS

Meter Information CVM Information Read/Write Regs Wiring Error Test

Figure 3–4: Menuoptions on the Main Menu

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63230-300-212 Chapter 3—Operation April 2 001 Configuring the Circuit Monitor Using the Setup Menu

CONFIGURINGTHE CIRCUIT MONITOR USING THE SETUP MENU

Setting Up the Display

Before you can access the Setup menu from the Main Menu, you must enter the Setup password. Thedefault password is 0. To change the password, see “Setting Up Passwords” on page 27. The Setup menu has the following options:

• Date & Time

• Display

• Communications

• Meter

• Alarm

• I/O

• Passwords

Each of these options is described in the sections that follow.

Setting up the display involves, for example, choosing a date and time format that you want to be displayed. To set up the display, follow these steps:

1. From the Main Menu, select Setup > Display. The Display Setup menudisplays. Table 3–1 describes the options on this

menu.

DISPLAY

Language English Date MM/DD/YYYY Time Format AM/PM VFD Sensitivity 2 Display Timer 5 Custom Quantity Custom Screen

2. Use the arrow buttons to scroll to the menu option you want to change.

3. Press the enter button to select the value.The value begins to blink. Use the arrow buttons to scroll through the available values. Then, press the enter button to select the new value.

4. Use the arrow buttons to scroll through the other options on the menu, or if you are finished, press the menu button to save.

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Chapter 3—Operation 63230-300-212 Configuring the Circuit Monitor Using The Setup Menu April 2001

Table 3–1: Factory Defaults for the Display Settings

Option Available Values Selection Description Default

Language English

Francais Espanol

Date MM/DD/YYYY

YYYY/MM/DD DD/MM/YYYY

Time Format 2400hr

AM/PM

VFD Sensitivity Off

1=0–6ft(0–15 m) 2=0–12 ft (0–31 m) 3=0–20 ft (0–51 m)

Display Timer 1, 5, 10, or 15 minutes Number of minutes the display remains illuminated

Custom Quantity Creating custom quantities is an advanced feature that is not required for basic setup. To learn more about this

feature, see “Creating Custom Quantities to be Displayed” on page 28.

Custom Screen Creating custom screens is an advanced feature that is not required for basic setup. To learn more about this

feature, see “Creating Custom Screens” on page 31.

Language used by the display. English

Data format for all date-related values of the circuit monitor.

Time format can be 24-hour military time or 12-hour clock with AM and PM.

Sensitivity value for the proximity sensor (for the VFD display only).

after inactivity.

MM/DD/YYYY

2400hr

Setting Up the Communications

Setting the Device Address

The Communications menu lets you set up the following communications:

•

RS-485

monitor and other

RS-232

•

the circuit monitor and a host device, such as a

Infrared Port

•

computer (available only on the

•

Ethernet Options

communications for daisy-chain communication of the circuit

RS-485 devices.

communications for point-to-point communication between the

PC or modem.

communications between the circuit monitor and a laptop

VFD display).

for Ethernet communications between the circuit monitor and your Ethernet network when an Ethernet Communications Card (

ECC)ispresent.

Each of these options is described in the sections that follow.

Each

POWERLOGIC device on a communications link must have a unique

device address. The term communications link refers to 1–32

POWERLOGIC

compatible devices daisy-chained to a single communications port. If the communications link has only a single device, assign it address 1. By networking groups of devices,

POWERLOGIC systems can support avirtually

unlimited number of devices.

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63230-300-212 Chapter 3—Operation April 2 001 Configuring the Circuit Monitor Using The Setup Menu

RS-485, RS-232, and Infrared Port Communications Setup

To se t up RS-485, RS-232, or the infrared port communications, set the address, baud rate, and parity. Follow these steps:

1. From the Main Menu, select Setup > Communications. The Communications Setup screen displays.

COMMUNICATIONS

RS-485 RS-232 Infrared Port Ethernet Option

NOTE: You can set up infrared communications only if the circuit monitor is equipped with a VFD display. Also, you can set up Ethernet communications only if the circuit monitor is equipped with an

ECC

card.

2. From the Comms Setup menu, select the type of communications that you are using. Depending on what you select, the screen for that communications setup displays, as shown below.Table 3–2 describes the options on this menu.

RS-485

Protocol Modbus Address 1 Baud Rate 9600 Parity Even

3. Use the arrow buttons to scroll to the menu option you want to change.

4. Press the enter button to select the value.The value begins to blink. Use

5. Use the arrow buttons to scroll through the other options on the menu, or

Table 3–2: Options for Com munications Setup

Option Available Values Selection Description Default

Protocol

Address 1–255 Device address of the circuit monitor.

Baud Rate

RS-232

Protocol Modbus Address 1 Baud Rate 9600 Parity Even

INFRARED PORT

Protocol Modbus Address 1 Baud Rate 9600 Parity Even

the arrow buttons to scroll through the available values. Then, press the enter button to select the new value.

if you are finished, press the menu button to save.

MODBUS JBUS

1200 2400 4800 9600 19200 38400

Select MODBUS or JBUS protocol. MODBUS

See “Setting the Device Address” on page 14 for requirements of device addressing.

Speed at which the devices will communicate. The baud rate must match all devices on the communications link.

9600

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Chapter 3—Operation 63230-300-212 Configuring the Circuit Monitor Using The Setup Menu April 2001

Table 3–2: Options for Communications Setup

Parity Even, Odd, or

None

Parity at which the circuit monitor will communicate.

Even

EthernetCommunications Card (ECC) Setup

Setting Up the Metering Functions of the Circuit Monitor

Ethernet communications is available only if you have an optional Ethernet Communications Card (

ECC) that fits into slot A on the top of the circuit

monitor. See “Option Cards” on page 28 in Chapter 4—Installation of the installation manual for more information. To set up the Ethernet communications between the circuit monitor and the network, refer to instruction bulletin no. 63230-304-200 provided with the

ECC.

To set up the metering within the circuit monitor, you must configure the following items on the Meter setup screen for basic setup:

• CT and PT ratios

• System type

• Frequency

The power demand method, interval and subinterval, and advanced setup options are also accessible from the Meter Setup menu, but are not required for basic setup if you are accepting the factory defaults already defined in the circuit monitor. Follow these steps to set up the circuit monitor:

1. From the Main Menu, select Setup > Meter. The Meter setup screen displays. Table 3–3 describes the options on this

menu.

METER

Ø CT Primary 5 Ø CT Secondary 5 N CT Primary 5 N CT Secondary 5 PT Pri Scale x1 PT Primary 120 PT Secondary 120 Sys Type 3Ø4W3CT

Required for basic setup

Frequency (Hz) 60 Pwr Dmd Meth Slide Pwr Dmd Int 15 Pwr Dmd Sub Int 1 Advanced

2. Use the arrow buttons to scroll to the menu option you want to change.

3. Press the enter button to select the value. The value begins to blink. Use the arrow buttons to scroll through the available values. Then, press the enter button to select the new value.

4. Use the arrow buttons to scroll through the other options on the menu, or if you are finished, press the menu button to save.

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63230-300-212 Chapter 3—Operation April 2 001 Configuring the Circuit Monitor Using The Setup Menu

Table 3–3: Options for Meter Setup

Option Available Values Selection Description Default

CT Primary 1–32,767 Set the rating for the CT primary. The circuit monitor supports two primary CT

ratings: one for the phase CTs and the other for the neutral CT.

CT Secondary 1 or 5 Set the rating for the CT secondaries. 5

PT Pri Scale x1

x10 x100 No PT

PT Primary 1–32,767 Set the rating for the PT primary. 120

PT Secondary 100

110 115 120

Sys Type 3Ø3W2CT

3Ø3W3CT 3Ø4W3CT 3Ø4W4CT 3Ø4W3CT2PT 3Ø4W4CT2PT

Frequency (Hz) 50, 60, or 400 Hz Frequency of the system. 60

Pwr Dmd Meth Select the power demand calculation method. The circuit monitor supports several methods to calculate

average demand of real power. See “Demand Power Calculation Methods” on page 57 for a detailed description. Slide—Sliding Block Demand Slave—Slave Block Demand Therm—Thermal Demand RComms—Command-Synchronized Rolling Block Demand Comms—Command-Synchronized Block Demand RInput—Input-Synchronized Rolling Block Demand Input—Input-Synchronized Block Demand RClock—Clock-Synchronized Rolling Block Demand Clock—Clock-Synchronized Block Demand RBlock—Rolling Block Demand Block—Fixed Block Demand IncEngy—Synch to Incremental Energy Interval

Pwr Dmd Int 1–60 Power demand interval—set the time in minutes in which the circuit monitor

Pwr Dmd Sub Interval 1–60 Power demand subinterval—period of time within the demand interval in which the

Advanced See “Advanced Meter Setup” on page 34 in this chapter for more information.

Set the value to which the PT Primary is to be scaled if the PT Primary is larger than 32,767. For example, setting the scale to x10 multiplies the PT Primary number by 10. For a direct-current installation, select “No PT.”

Set the rating for the PT secondaries. 120

3Ø3W2CT is system type 30 3Ø3W3CT is system type 31 3Ø4W3CT is system type 40 3Ø4W4CT is system type 41 3Ø4W3CT2PT is system type 42 3Ø4W4CT2PT is system type 43 Set the system type. A system type code is assigned to each type of system connection. See Table 5–2 on page 38 of the installation manual for a description of system connection types.

calculates the demand.

demand calculation is updated. Set the subinterval only for methods that will accept a subinterval. The subinterval must be evenly divisible into the interval.

3Ø4W3CT (40)

Slide

N/A

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Chapter 3—Operation 63230-300-212 Configuring the Circuit Monitor Using The Setup Menu April 2001

Setting Up Alarms

This section describes how to setup alarms and create your own custom alarms. For a detailed description of alarm capabilities, see Chapter 6— Alarms on page 83. The circuit monitor can detect over 100 alarm conditions, including over/under conditions, status input changes, phase unbalance conditions, and more. Some alarms are preconfigured and enabled at the factory. See “Factory Defaults” on page 11 in Chapter 3— Getting Started of the installation manual for information about preconfigured alarms. You can edit the parameters of any preconfigured alarm from the display.

For each alarm that you set up, do the following:

• Select the alarm group that defines the type of alarm:

—

Standard speed

alarms have a detection rate of one second and are useful for detecting conditions such as over current and under voltage. Up to 80 alarms can be set up in this group.

—

High speed

alarms have a detection rate of 100 milliseconds and are useful for detecting voltage sags and swells that last a few cycles. Up to 20 alarms can be set up in this group.

—

Disturbance monitoring

alarms have a detection rate of one cycle and are useful for detecting voltage sags and swells. Up to 20 alarms can be set up in this group.

—

Digital

alarms are triggered by an exception such as the transition of a status input or the end of an incremental energy interval. Up to 40 alarms can be set up in this group.

—

Boolean

alarms have a detection rate of the alarms used as inputs. They are used to combine specific alarms into summary alarm information.

• Select the alarm that you want to configure. Keep the default name or enter a new name with up to 15 characters.

• Enable the alarm.

• Assign a priority to the alarm. Refer to “Viewing Alarms” on page 41 for

information about the alarm priority levels.

• Define any required pickup and dropout setpoints, and pickup and dropout time delays (for standard, high speed, and disturbance alarm groups only, refer to “Setpoint-Driven Alarms” on page 85 in Chapter 6—Alarms).

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63230-300-212 Chapter 3—Operation April 2 001 Configuring the Circuit Monitor Using The Setup Menu

Creating a New Custom Alarm

In addition to editing an alarm, you can also create new custom alarms by performing two steps:

1. Create the custom alarm.

2. Setup and enable the new alarm.

To use custom alarms, you must first create a custom alarm and then set up the alarm to be used by the circuit monitor. Creating an alarm defines information about the alarm including:

• Alarm group (standard, high speed, disturbance, digital, or boolean)

• Name of the alarm

• Type (such as whether it alarms on an over or under condition)

• Register number of the value that will be alarmed upon

To create an alarm, follow these steps:

1. From the Main Menu, select Setup > Alarm > Create Custom. The Create Custom screen displays.

CREATE CUSTOM

Standard 1 sec High Speed 100ms Disturbance <1cycle Digital Boolean

2. Select the Alarm Group for the alarm that you are creating:

• Standard—detection rate of 1 second

• High Speed—detection rate of 100 millisecond

• Disturbance—detection rate of less than 1 cycle

• Digital—triggered by an exception such as a status input or the end of

an interval

• Boolean—triggered by condition of alarms used as inputs The Select Position screen displays and jumps to the first open position

in the alarm list.

SELECT POSITION

*43 Over THD Vbc *44 Over THD Vca 45

3. Select the position of the new alarm. The Alarm Parameters screen displays.

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Chapter 3—Operation 63230-300-212 Configuring the Circuit Monitor Using The Setup Menu April 2001

ALARM PARAMETERS

Lbl: Over THD Vbc Type Over Val Qty THD Vbc

Ta b le 3 –4 on page 20 describes the options on this menu.

Table 3–4: Options for Creating an Alarm

Option Available Values Selection Description Default

Label—name of the alarm. Press the down arrow button to scroll through the alphabet. The lower

Lbl Alphanumeric

Selectthetypeofalarmthatyouarecreating.

Note: For digital alarms, the type is either ON state, OFF state, or Unary to describe the state of the digital input. Unary is available for digital alarms only.

Over Val—over value Over Pwr—over power Over Rev Pwr—over reverse power Under Val—under value

Ty p e

Qty



Under Pwr—under power Phs Rev—phase reversal Phs Loss Volt—phase loss, voltage Phs Loss Cur—phase loss, current PF Lead—leading power factor PF Lag—lagging power factor Binary Time of Day See Table 6–4 on page 96 for a description of alarm types.

For standard or high speed alarms this is the quantity to be evaluated. While selected, press the arrow buttons to scroll through the following quantity options: Current, Voltage, Demand, Unbalance, Frequency, Power Quality, THD, Harmonics, Temperature, Custom, and Register. Pressing the enter key while an option is displayed will activate that option’s list of values. Use the arrow keys to scroll through the list of options, selecting an option by pressing the enter key.

Unary is a special type of alarm used for ”end of” digital alarms. It does not apply to setting up alarms for digital inputs.

case letters are presented first, then uppercase, then numbers and symbols. Press the enter button to select a letter and move to the next character field. To move to the next option, press the menu button.



—

Undefined

4. Press the menu button until “Save Changes? No” flashes on the display. Select Yes with the arrow button, then press the enter button to save the changes. Now, you are ready to set up the newly created custom alarm.

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63230-300-212 Chapter 3—Operation April 2 001 Configuring the Circuit Monitor Using The Setup Menu

Setting Up and Editing Alarms

To set up a newly created custom alarm for use by the circuit monitor, use the Edit Parameters option on the Alarm screen. You can also change parameters of any alarm, new or existing. For example, using the Edit option you can enable or disable an alarm, change its priority, and change its pickup and dropout setpoints.

Follow these instructions to set up or edit an alarm:

1. From the Main Menu, select Setup > Alarm > Edit Parameters. The Edit Parameters screen displays.

EDIT PARAMETERS

Standard 1 sec High Speed 100ms Disturbance <1cycle Digital Boolean

2. Select the Alarm Group:

• Standard

• High Speed

• Disturbance

• Digital

• Boolean

The Select Alarm screen displays.

SELECT ALARM

*01 Over Ia 02 Over Ib 03 Over Ic

NOTE: If you are setting up or editing a digital alarm, alarm names such as Breaker 1 trip, Breaker 1 reset will display instead.

3. Select the alarm you want to set up or edit. The Edit Alarm screen with the alarm parameters displays. Table 3–5

describes the options on this menu.

EDIT ALARM

Lbl:Over Ia Enable No Priority None Setpoint Mode Abs Pickup 0 PU Dly seconds 0 Dropout 0 DO Dly seconds 0

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Chapter 3—Operation 63230-300-212 Configuring the Circuit Monitor Using The Setup Menu April 2001

NOTE: If you are setting up or editing a digital alarm, fields related to pickup and dropout are not applicable and will not be displayed.

4. Use the arrow buttons to scroll to the menu option you want to change, then edit the alarm options.

5. When you are finished with all changes, press the menu button until “Save Changes? No” flashes on the display. Select Yes with the arrow button, then press the enter button to save the changes.

NOTE: An asterisk next to the alarm in the alarm list indicates that the alarm is enabled.

Table 3–5: Options for Editing an Alarm

Option Available Values Selection Description Default

Label—name of the alarm assigned to this position. Press the down arrow button

Lbl Alphanumeric

Enable

Priority

Setpoint Mode

Pickup 1–32,767

PU Dly Seconds

Dropout 1–32,767

DO Dly Seconds

Ye s No

None Low Med High

Abs Rel

Pickup Delay 1–32,767

Dropout Delay 1–32,767

to scroll through the alphabet. The lower case letters are presented first, then uppercase, then numbers and symbols. Press the enter button to select a letter and move to the next character field. To move to the next option, press the menu button.

Select preconfigured alarms, the alarm may already be enabled. Select

Low

the active alarm in the list of high priority alarms. To view this list from the Main Menu, select Alarms > High Priority Alarms. For more information, see “Viewing Alarms” on page 41.

Selecting Abs indicates that the pickup and dropout setpoints are absolute values. Rel indicates that the pickup and dropout setpoints are a percentage of a running average, the relative value, of the test value.

When you enter a delay time, the number is multiples of time. For example, for standard speed the time is 2 for 2 seconds, 3 for 3 seconds, etc. For high speed alarms, 1 indicates a 100 ms delay, 2 indicates a 200 ms delay, and so forth. For disturbance the time unit is 1 cycle. See “Setpoint-Driven Alarms” on page 85 for an explanation of pickup and dropout setpoints.

to make the alarm available for use by the circuit monitor. On

to makes the alarm function unavailable to the circuit monitor.

is the lowest priority alarm.

High

is the highest priority alarm and also places

Name of the alarm assigned to this position.

Depends on individual alarm.

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63230-300-212 Chapter 3—Operation April 2 001 Configuring the Circuit Monitor Using The Setup Menu

Setting Up I/Os

Selecting I/O Modules

TosetupanI/O,youmustdothefollowing:

1. Install the I/O option module following the instructions provided with the product.

2. Use the display to select which

IOX option is installed.

3. Use the display to configure each individual input and output. You can also use

SMS to configure inputs and outputs.

NOTE: After selecting which IOX option is installed, you can’t configure the module until you have saved the changes. After saving the changes, you then can configure the inputs and outputs.

For a description of I/O options, see Chapter 5—Input/Output Capabilities

on page 69. To view the status of an I/O, see “Viewing I/O Status” on page

43. You need to know the position number of the I/O to set it up. See “I/O Point

Numbers” on page 186 to determine this number. To set up an I/O, follow these steps:

1. From the Main Menu, select Setup. The password prompt displays.

2. Select your password. The default password is 0. The Setup menu displays.

SETUP

Date & Time Display Communications Meter Alarm I/O Passwords

3. Select I/O.

TheI/OSetupmenudisplays.

I/O

KYZ I/O Extender

NOTE: Other option modules will be displayed in the I/O menu if they are installed

4. Select the I/O option that you have installed. In this example, we selected the I/O Extender.

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Chapter 3—Operation 63230-300-212 Configuring the Circuit Monitor Using The Setup Menu April 2001

The I/O Extender Setup menu displays.

I/O EXTENDER SETUP

Select Modules Configure Modules

5. Select the Select Modules menu option. The IOX Select Modules menu displays.

IOX SELECT MODULES

IOX-08 IOX-0404 IOX-2411 Custom

6. If you have the IOX-08, IOX-0404, or IOX-2411, select the option you have installed. A pound sign (#) appears next to the option to indicate that the circuit monitor has recognized the module. If you installed individual custom I/Os, select Custom on the IOX Select Modules menu.

The Custom Extender menu displays.

CUSTOM

Position 1 DI120AC Position 2 AI420 Position 3 DI120AC Position 4 AI420 Position 5 DI120AC Position 6 AI420 Position 7 DI120AC Position 8 AI420

7. Select the position in which the I/O is installed. Then, select which I/O module is located in that position using the arrow keys to scroll through the available I/Os. The individual I/Os are described in Table 3–6.

Table 3–6: I/O Descriptions

I/O Name Description DigitalI/Os

DI32DC 32 Vdc input (0.2ms turn on) polarized

DI120AC 120 Vac input

DO120AC 120 Vac output

DI240AC 240 Vac input

DO60DC 60 Vdc output

DO200DC 200 Vdc output

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63230-300-212 Chapter 3—Operation April 2 001 Configuring the Circuit Monitor Using The Setup Menu

Table 3–6: I/O Descriptions

I/O Name Description

DO240AC 240 Vac output

Analog I/Os

AI05 0to5Vdcanaloginput

AI420 4 to 20 mA analog input

AO420 4 to 20 mA analog output

8. Press the menu button until “Save Changes? No” flashes on the display. Select Yes with the arrow button, then press the enter button to save the changes.

Configuring I/O Modules

After selecting the I/O modules used with your circuit monitor, you can configure the I/O modules. Follow the steps below to configure the inputs and outputs for the I/O module you selected.

1. From the Main Menu, select Setup.

The password prompt displays

2. Select your password. The default password is 0. The Setup menu displays.

SETUP

Date & Time Display Communications Meter Alarm I/O Passwords

3. Select I/O. TheI/OSetupmenudisplays.

I/O

KYZ I/O Extender

4. Select the I/O option that you have installed. In this example, we selected the I/O Extender.

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Chapter 3—Operation 63230-300-212 Configuring the Circuit Monitor Using The Setup Menu April 2001

The I/O Extender Setup selection menu displays.

I/O EXTENDER SETUP

Select Modules Configure Modules

5. Select the Configure Modules menu option. The IOX Setup menu displays according to the IOX previously selected.

In this example the IOX Custom Setup menu displays.

IOX CUSTOM SETUP

Position 1 Position 2 Position 3 Position 4 Position 5 Position 6 Position 7 Position 8

ANALOG INPUT SETUP

Lbl: Analog In C02 Type 4-20mA Input I/O Point # 36 Multiplier 1 Lower Limit 400 Upper Limit 2000

6. Select the position in which the I/O is installed. The I/O module’s setup menu displays based on the type of module

installed in the selected position.

ANALOG OUTPUT SETUP

Lbl: Analog OutC04 Type 4-20mA Output I/O Point # 38 Reference Reg 100 Lower Limit 400 Upper Limit 2000

NOTE: For a description of the I/O options displayed above, refer to

Chapter 5—Input/Output Capabilities

DIGITAL INPUT SETUP

Lbl: Dig In C01 Type 120Vac Input I/O Point # 35 Mode Normal

DIGITAL OUTPUT SETUP

Lbl: Dig Out C03 Type 120 Vac Output I/O Point # 37 Mode Normal Pulse Const **** Timer (secs) 0 Control External Associate Alarm

on page 69.

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63230-300-212 Chapter 3—Operation April 2 001 Configuring the Circuit Monitor Using The Setup Menu

Setting Up Passwords

MAIN MENU

Meters Min/Max View Alarms

I/O Display

Resets Setup Diagnostics

Passwords can be set up for Resets, Setup, and Diagnostics menus

METERS

Summary Powe r Power Quality Energy Power Demand Amp Demand Custom

MIN/MAX

Amps Volts Frequency Powe r Power Factor THD

VIEW ALARMS

Active Alarms High Priority Alarms

I/O DISPLAY

Digital Inputs Analog Inputs Digital Outputs Analog Outputs

RESETS

Energy Demand Min/Max

SETUP

Display Communications Meter Alarm I/O Passwords

DIAGNOSTICS

Meter Information CVM Information

Read/Write Regs

Wiring Error Test

A password is always required to access the following menus from the Main Menu:

• Resets (a separate password can be set up for Energy/Demand Reset and Min/Max Reset)

• Setup

• Read/Write Regs on the Diagnostics Menu

The default password is 0. Therefore, when you receive a new circuit monitor, the password for the Setup, Diagnostics, and Reset menu is 0. If you choose to set up passwords, you can set up a different password for each of the four menus options listed above.

To set up a password, follow these instructions:

1. From the Main Menu, select Setup.

The password prompt displays.

2. Select 0, the default password.

The Setup menu displays.

SETUP

Date & Time Display Communications Meter Alarm I/O Passwords

3. Select Passwords.

The Password Setup menu displays. Table 3–7 describes the options.

PASSWORDS

Setup 0 Diagnostics 0 Engy/Dmd Reset 0 Min/Max Reset 0

Figure 3–5: Menus that can be

password protected

Table 3–7: Options for Password Setup

Option Available Values Description

EnterapasswordintheSetupfieldtocreate

Setup 0–9998

Diagnostics 0–9998

a password for the Setup option on the Main Menu.

Enter a password in the Diagnostics field to create a password for the Diagnostics option on the Main Menu.

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Chapter 3—Operation 63230-300-212 Configuring the Circuit Monitor Using The Setup Menu April 2001

Table 3–7: Options for Password Setup

Enter a passwordin the Engy/DmdReset field

Engy/Dmd

Reset

Min/Max Reset

QThe word “Locked” appears next to a reset option that is inaccessible. If all of the

reset opt ions are locked, “Locked” will appear next to the Resets option in the Main Menu, and the Resets menu will be inaccessible.

0–9998

to create a password for resetting Energy and Demand. These options appear on the Reset menu, and they can also be locked. See “Advanced Meter Setup” on page 34 for instructions.

Enter a password in the Min/Max Reset field to create a password for resetting the Min/ Max, which appears on the Reset menu. This optioncanalsobelocked.See“Advanced Meter Setup” on page 34 for instructions.

Advanced Setup Features

Creating Custom Quantities to be Displayed

The features discussed in this section are not required for basic circuit monitor setup, but can be used to customize your circuit monitor to suit your needs.

Any quantity that is stored in a register in the circuit monitor can be displayed on the remote display. The circuit monitor has a list of viewable quantities already defined such as average current, power factor total, and so forth. In addition to these predefined values, you can define custom quantities that can be displayed on a custom screen. For example, if your facility uses different types of utility services such as water, gas, and steam, you may want to track usage of the three services on oneconvenient screen. To dothis, you could set up inputs to receive pulses from each utility meter, then display the scaled register quantity.

For the circuit monitor display, custom quantities can be used to display a value. Don’t confuse this feature with quantities are used to add new parameters which functions. new into

SMS custom quantities are defined, for example, when you add a

POWERLOGIC-compatible device to SMS or if you want to import data

SMS from another software package. You can use the SMS custom

SMS custom quantities. SMS custom

SMS can use to perform

quantitiesin custom tables and interactivegraphics diagrams, but you cannot use circuit monitor display custom quantities in this way.

that you define for display from the circuit monitor are not available to

Custom quantities

SMS

They must be defined separately in SMS.

To use a custom quantity, perform these tasks:

1. Create the custom quantity as described in this section.

2. Create a custom screen on which the custom quantity can be displayed.

See “Creating Custom Screens” on page 31 in the following section. You can view the custom screen by selecting from the Main Menu, Meters > Custom. See “Viewing Custom Screens” on page 34 for more information.

To create a custom quantity, follow these steps:

1. From the Main Menu, select Setup. The password prompt displays.

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63230-300-212 Chapter 3—Operation April 2 001 Configuring the Circuit Monitor Using The Setup Menu

2. Select your password. The default password is 0. The Setup menu displays.

SETUP

Date & Time Display Communications Meter Alarm I/O Passwords

3. Select Display. The Display Setup menu displays.

DISPLAY

Language English Date MM/DD/YYYY Time Format AM/PM VFD Sensitivity 2 Display Timer 5 Min Custom Quantity Custom Screen

4. Select Custom Quantity.

The Custom Quantity Setup screen displays.

CUSTOM QUANT SETUP

Custom Quantity 1 Custom Quantity 2 Custom Quantity 3 Custom Quantity 4 Custom Quantity 5 Custom Quantity 6 Custom Quantity 7 Custom Quantity 8 Custom Quantity 9 Custom Quantity 10

5. Select a custom quantity.

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Chapter 3—Operation 63230-300-212 Configuring the Circuit Monitor Using The Setup Menu April 2001

In this example, we selected Custom Quantity 1. Table 3–8showsthe available values.

Custom Quantity 1

Lbl: Register 1,000 Scale 1,000 Format Integer

6. Use the arrow buttons to scroll to the menu option you want to change.

7. Press the enter button to select the value. The value begins to blink. Use the arrow buttons to scroll through the available values. Then, press the enter button to select the new value.

8. Use the arrow buttons to scroll through the other options on the menu, or if you are finished, press the menu button to save.

Table 3–8: Options for Custom Quantities

Option Available Values Default

Lbl Name of the quantity up to 10 characters. Press the arrow

Scale Multiplier of the register value can be one ofthe following:

Format Integer

 

buttons to scroll through the characters. To move to the next option, press the menu button.

1,000

exists.

1,000 .001, .01, .1, 1.0, 10, 100 or 1,000. See “Scale Factors” on page 91 for more information.

Integer D/T—date and time MOD10L4—Modulo 10,000 with 4 registers MOD10L3—Modulo 10,000 with 3 registers MOD10L2—Modulo 10,000 with 2 registers Label



Modulo 10,000 is used to store energy. See the SMS online help for more.

Use the Label format only when a label has been defined with no corresponding register.

  

An asterisk (*) next to the quantity indicates that the quantity has been added to the list.

9. To save the changes to the Display Setup screen, press the menu button.

The custom quantity is added to the Quantities List in the Custom Screen Setup. The new quantity appears at the end of this list after the standard quantities. After creating the custom quantity, you must create a custom screen to be able to view the new quantity.

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63230-300-212 Chapter 3—Operation April 2 001 Configuring the Circuit Monitor Using The Setup Menu

CreatingCustom Screens

You choose the quantities that are to be displayed on a custom screen. The quantities can be standard or custom quantities. If you want to display a custom quantity, you must first create the custom quantity so that it appears on the Quantities List. See “Creating Custom Quantities to be Displayed” on page 28 for instructions.

To create a custom screen, follow these steps:

1. From the Main Menu, select Setup. The password prompt displays.

2. Select your password. The default password is 0. The Setup menu displays.

SETUP

Date & Time Display Communications Meter Alarm I/O Passwords

3. Select Display. The Display Setup menu displays.

DISPLAY

Language English Date MM/DD/YYYY Time Format AM/PM VFD Sensitivity 2 Display Timer 5 Min Custom Quantity Custom Screen

4. Select Custom Screen. The Custom Screen Setup screen displays.

CUSTOM SCREEN SETUP

Custom Screen 1 Custom Screen 2 Custom Screen 3 Custom Screen 4 Custom Screen 5

5. Select a custom screen. In this example, we selected Custom Screen 1.

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Chapter 3—Operation 63230-300-212 Configuring the Circuit Monitor Using The Setup Menu April 2001

SCREEN 1

Screen 1 Blank Line Blank Line Blank Line

The cursor begins to blink.

6. Create a name for the custom screen. Press the arrow buttons to scroll through the alphabet. Press the enter button to move to the next character field.

7. When you have finished naming the screen, press the menu button, then select the first blank line.

The first blank line begins to blink.

SCREEN 1

Monthly Energy Cost Blank Line Blank Line Blank Line

8. Use the arrow buttons to select one of the following quantity types:

• Current

• Vol t age

• Frequency

• Power Factor

• Power

• THD

• Energy

• Demand

• Harmonics

• Unbalance

• Custom

To view the quantities of a quantity type, press the enter button. The first quantity flashes on the display.

Screen 1

Monthly Energy Cost Ia ****A Blank Line Blank Line

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63230-300-212 Chapter 3—Operation April 2 001 Configuring the Circuit Monitor Using The Setup Menu

9. Use the arrow buttons to scroll through the list of quantities. Select the quantity that you want for your custom screen by pressing the enter button.

Tab le 3–9 lists the default quantities. If you have created a custom quantity, it will be displayed at the bottom of this list.

Table 3–9: Available Default Quantities

Quantity TypeQQuantity Label

Current Current A Ia

Current B Ib

Current C Ic

Current N In

Current G Ig

Current Average I Avg

Voltage Voltage A–BVab

Vol tage B–CVbc

Vol tage C-A Vca

Vol tage L–LAverage VL-LAvg

Vol tage A–NVan

Vol tage B–NVbn

Vol tage C–NVcn

Vol tage L–NAverage VL-NAvg

Frequency Frequency Freq

Power Factor Power Factor Total PF Total

Displacement Power Factor Total Dis PF Tot

Power Real Power Total kW Total

Reactive Power Total kVAR Total

Apparent Power Total kVA Total

THD THD Current A THD Ia

THD Current B THD Ib

THD Current C THD Ic

THD Current N THD In

THD Voltage A–NTHDVan

THD Voltage B–NTHDVbn

THD Voltage C–NTHDVcn

THD Voltage A–BTHDVab

THD Voltage B–CTHDVbc

THD Voltage C–ATHDVca

Energy Real Energy, Total kWHr Tot

Reactive Energy, Total kVARHr Tot

Apparent Energy, Total kVAHr Tot

Demand Demand Current Average Dmd I Avg

Demand Current A Dmd Ia

Demand Current B Dmd Ib

Demand Current C Dmd Ic

Demand Current N Dmd In

Demand Voltage A–NDmdVan

Demand Voltage B–NDmdVbn

Demand Voltage C–NDmdVcn

Demand Voltage L–N Average Dmd V L-N

Demand Voltage A–BDmdVab

Demand Voltage B–CDmdVbc

Demand Voltage C–ADmdVca

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Chapter 3—Operation 63230-300-212 Configuring the Circuit Monitor Using The Setup Menu April 2001

Table 3–9: Available Default Quantities

Quantity TypeQQuantity Label

Demand Voltage L–LAvg DmdVL-L

Demand Real Power (kWD) Dmd kW

Demand Reactive Power (kVARD) Dmd kVAR

Demand Apparent Power (kVA) Dmd kVA

Harmonics 3rd Harmonic Magnitude Voltage A Van 3rd

5th Harmonic Magnitude Voltage A Van 5th

7th Harmonic Magnitude Voltage A Van 7th

3rd Harmonic Magnitude Voltage B Vbn 3rd

5th Harmonic Magnitude Voltage B Vbn 5th

7th Harmonic Magnitude Voltage B Vbn 7th

3rd Harmonic Magnitude Voltage C Vcn 3rd

5th Harmonic Magnitude Voltage C Vcn 5th

7th Harmonic Magnitude Voltage C Vcn 7th

Unbalance Current Unbalance Max I Unbl Mx

Voltage Unbalance Max L-L V Unbl Mx L–L

Voltage Unbalance Max L-N V Unbl Mx L–N

Q D isplayed on the screen.

ViewingCustom Screens

Advanced Meter Setup

10. Press the menu button until “Save Changes? No” flashes on the display. Select Yes, then press the enter button to save the custom screen.

If you have a custom screen setup, a “Custom” option will be displayed on the Meters menu.

To view a custom screen, from the Main Menu select Meters > Custom. In this example, a custom screen was created for monthly energy cost. Press the arrow button to view the next custom screen. Press the menu button to exit and return to the Meters Menu.

Monthly Energy Cost

Dollars 8632

The Advanced option on the Meter Setup screen lets you perform miscellaneous advanced setup functions on the metering portion of the circuit monitor. For example, on this menuyou can change the phase rotation or the VAR sign convention. The advanced options are described below.

1. From the Main Menu, select Setup.

The password prompt displays.

2. Select your password. The default password is 0. The Setup menu displays.

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63230-300-212 Chapter 3—Operation April 2 001 Configuring the Circuit Monitor Using The Setup Menu

SETUP

Date & Time Display Communications Meter Alarm I/O Passwords

3. Select Meter. The Meter Setup screen displays.

METER

Ø CT Primary 5 Ø CT Secondary 5 N CT Primary 5 N CT Secondary 5 PT Pri Scale x1 PT Primary 120 PT Secondary 120 Sys Type 3Ø4W3CT Frequency (Hz) 60 Pwr Dmd Meth Slide Pwr Dmd Int 15 Pwr Dmd Sub Int 1 Advanced

4. Scroll to the bottom of the list and select Advanced. The Advanced Meter Setup screen displays. Table 3–10 on page 36

describes the options on this menu.

ADVANCED METER SETUP

Phase Rotation ABC Incr Energy Int 60 THD Meth THD(%Fund) VAR Sign IEEE/IEC Lock Energy Reset N Lock Pk Dmd Reset N Lock M/M Reset N

5. Change the desired options and press the menu button to save.

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Chapter 3—Operation 63230-300-212 Configuring the Circuit Monitor Using The Setup Menu April 2001

Table 3–10: Options for Advanced Meter Setup

Option Available Values Selection Description Default

Phase Rotation ABC or CBA Set the phase rotation to match the system. ABC

Incr Energy Int 0–1440 Set incremental energy interval in minutes. The interval must be evenly divisible into

THD Meth THD(%Fund) or

thd(%RMS)

VARSign IEEE/IECor

ALT(CM1)

Lock Energy Reset Y or N Lock the reset of the accumulated energy. If set to Y (yes), the Energy option on the

Lock Pk Dmd Reset Y or N Lock the reset of peak demand. If set to Y (yes), the Demand option on the Reset

Lock M/M Reset Y or N Lock the reset of themin/max values.If set to Y (yes), the Min/Max option onthe Reset

24 hours.

Set the calculation for total harmonic distortion. See “Power Analysis Values” on page 66 for a detailed description.

Set the VAR sign convention. See “VAR Sign Conventions” on page 55 fora discussion about VAR sign convention.

Reset menu will be locked so that the value cannot be reset from the display, even if a password has been set up for the Reset option. See “Resetting Min/Max, Demand, and Energy Values” on page 37 for more information.

menu will be locked so that the value cannot be reset from the display, even if a password has been set up for the Reset option. See “Resetting Min/Max, Demand, and Energy Values” on page 37 for more information.

THD

Standard

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63230-300-212 Chapter 3—Operation April 2 001 Resetting Min/Max, Demand, and Energy Values

RESETTING MIN/MAX, DEMAND, AND ENERGY VALUES

MAIN MENU

Meters Min/Max View Alarms I/O Display Resets Setup Diagnostics

A reset clears the circuit monitor’s memory of the last recorded value. For example, you might need to reset monthly peak demand power. From the Reset menu, shown in Figure 3–6, you can reset the following values:

• Energy—accumulated energy and conditional energy

• Demand—peak power demand and peak current demand

• Min/Max—minimum and maximum values for all real-time readings

RESETS

Energy Demand Min/Max

Figure 3–6: Performing resets from the Reset menu

A password is required to reset any of the options on the Reset menu. The default password is 0. See “Setting Up Passwords” on page 27 for more information about passwords.

You can perform resets from the circuit monitor as described in this section or if you are using automatically at a specified time. See the

SMS, you can set up a task to perform the reset

SMS online help for instructions.

NOTE: To stop users from using the display to reset energy, peak demand, and min/max values, see“Advanced Meter Setup” on page 34 for instructions on using the reset locking feature.

To perform resets, follow these steps:

1. From the Main Menu, select Resets.

2. Use the arrow buttons to scroll through the menu options on the

RESET ENERGY

Accumulated No

The Resets menu displays.

RESETS

Energy Demand Min/Max

Resets menu. To select a menu option, press the enter button.

Depending on the option you selected, the screen for that value displays.

RESET DEMAND

PK Power Demand No

RESET MIN/MAX

Min/Max No

PK Amp Demand No

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Chapter 3—Operation 63230-300-212 Viewing Metered Data April 2001

3. Select the option you would like to reset and change No to Yes by pressing the arrow button.

4. Press Enter to move to the next option or press the menu button to reset the value.

VIEWING METERED DATA

The Meters menu and the Min/Max menu, shown in Figure 3–7, are view-only menus where you can view metered data in real time.

METERS

Summary

MAIN MENU

Meters Min/Max View Alarms

I/O Display

Resets Setup Diagnostics

Powe r Power Quality Energy Power Demand Current Demand

MIN/MAX

Current Voltage Frequency Powe r Power Factor THD

Figure 3–7: Viewingmetered data on the Meters and Min/Max menus

Use the arrow buttons to scroll through the menu options on the Meters menu. To select a menu option, press the enter button. To select another option, press the menu button.

Viewing Metered Data from the Meters Menu

From the Meters menu you can view the following information.

• Summary—lets you quickly move through and view the following:

— Summary total of volts, amperes, and kW. — Amperes and voltsfor all three phases, neutral and ground, line to line,

line to neutral.

— Power kW, kVAR, and kVA (real, reactive, and apparent power)

3-phase totals.

— Power factor (true and displacement) 3-phase totals. — Total energy kWh, kVARh, andkVAh 3-phase totals (real, reactive, and

apparent energy).

— Frequency in hertz.

• Power—is available only if the circuit monitor is configured for 4-wire

system; it will not appear for 3-wire systems. If you are using a 4-wire system, you can view the leading and lagging values for true and displacement power factor. Also this option lets you view power per-phase kW, kVAR, and kVA (real, reactive, and apparent power).

• Power Quality—shows the following values per phase:

— THD voltage line to neutral and line to line.

— THD amperes — K-factor

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63230-300-212 Chapter 3—Operation April 2 001 Viewing Metered Data

— Fundamental volts and phase angle — Fundamental amperes and phase angle

• Energy—shows accumulated and incremental readings for real and

reactive energy into and out of the load, and the real, reactive, and apparent total of all three phases.

• Power Demand—displays total and peak power demand kW, kVAR, and

kVA (real, reactive, and apparent power) for the last completed demand interval. It also shows the peak power demand kW, kVAR, and kVA with date, time, and coincident power factor (leading and lagging) associated with that peak.

• Current Demand—shows total and peak demand current for all three

phases, neutral, and ground. It also shows the date and time of the peak demand current.

Viewing Minimum and Maximum Values from the Min/Max Menu

From the Min/Max menu you can view the minimum and maximum values recorded by the circuit monitor, and the date and time when that min or max value occurred. These values that can be view are:

• Current

• Voltage

• Frequency

• Power

• Power Factor

• THD

To use the Min/Max menu, follow these steps:

1. Use the arrow buttons to scroll through the menu options on the Min/Max menu.

MIN/MAX

Current Voltage Frequency Power Power Factor THD

2. To select a menu option, press the enter button. The screen for that value displays. Press the arrow buttons to scroll

through the min/max quantities.

CURRENT A Min 0A Max 0A Press Enter for D/T

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Chapter 3—Operation 63230-300-212 Viewing Metered Data April 2001

3. To view the date and time when the minimum and maximum value was reached, press the enter button. Press the arrow buttons to scroll through the dates and times.

CURRENT A Mn 01/22/20001:59A Mx 01/22/20008:15A

4. Press the enter button to return to the Min/Max values

5. Press the menu button to return to the Min/Max menu.

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63230-300-212 Chapter 3—Operation April 2 001 Viewing Alarms

VIEWING ALARMS

MAIN MENU

Meters Min/Max View Alarms I/O Display Resets Setup Diagnostics

TheAlarmsmenushowninFigure3–8, lets you view active and high priority alarms.

VIEW ALARMS

Active Alarms List High Priority Log

Figure 3–8: View Alarms menu

When an alarm is first set up, an alarm priority is selected. Four alarm levels are available:

• High priority—if high priority alarm occurs, the display informs you in

two ways:

— The

LED on the display flashes while the alarm is active and until you

acknowledge the alarm

— A message displays whether the alarm is active or unacknowledged.

• Medium pr iority—if medium priority alarm occurs, the

LED flashes and a

message displays only while the alarm is active. Once the alarm becomes inactive, the

• Low priority—if low priority alarm occurs, the

LED and message stop.

LED on the display flashes

only while the alarm is active. No alarm message is displayed.

• No priority—if an alarm is setup with no priority, no visible representation

will appear on the display.

If multiple alarms with different priorities are active at the same time, the display shows the alarm message for the last alarm.

Each time an alarm occurs, the circuit monitor does the following:

• Puts the alarm in the list of active alarms. See “ViewingActiveAlarms” on page 42 for more about active alarms.

• Performs any assigned action. The action could be one of the following: — Operate one or more relays (you can view the status from the display)

— Force data log entries into the user-defined data log files (1–14 data

logscanbeviewedfrom

— Performawaveformcapture(canbeviewedfrom

SMS)

• Records the occurrence of high, medium, and low priority events in the circuit monitor’s alarm Log (can be viewed using

Also, the display

LED and alarm messages will operate according to the

SMS).

priority selected when an alarm occurs.

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Chapter 3—Operation 63230-300-212 Viewing Alarms April 2001

Viewing Active Alarms

View and Acknowledging High Priority Alarms

The Active Alarms List displays currently active alarms, regardless of their priority. You can view all active alarms from the Main Menu by selecting View Alarms > Active Alarms List. The Active Alarm screen displays. Use the arrow buttons to scroll through the alarms that are active.

Alarm Number/ To t a l A l ar m s

ACTIVE ALARMS LIST 1/1

Alarm Name

Over Van Priority High

Alarm Priority

Relay assigned No

Indicates whether a relay is assigned or not

To view high priority alarms, from the Main Menu select View Alarms > High Priority Log. The High Priority Log screen displays. Use the arrow buttons to scroll through the alarms.

Log Position

Alarm Name

HIGH PRIORITY LOG 1

Alarm Name

Over Van Unacknowledged Relay Assigned No

Indicates alarm is unacknowledged

Indicates whether a relay is assigned or not

The High Priority Alarms screen displays the ten most recent, high-priority alarms. When you acknowledge the high priority alarms, all digital outputs (relays) that are configured for latched mode will be released. To acknowledge all high priority alarms follow these steps:

1. After viewing the alarms, press the menu button to exit. The display asks you whether you would like to acknowledge the alarm.

HIGH PRIORITY ALARMS

Acknowledge Alarms? No

2. To acknowledge the alarms, press the arrow button to change No to Yes. Then, press the enter button.

3. Press the menu button to exit.

NOTE: You have acknowledged the alarms, but the LED will continue to flash as long as any high priority alarm is active.

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63230-300-212 Chapter 3—Operation April 2 001 Viewing I/O Status

VIEWING I/O STATUS

TheI/ODisplaymenushowstheON or OFF status of the digital inputs or outputs. For analog inputs and outputs, it displays the present value. To view the status of inputs and outputs:

1. From the Main Menu, select I/O Display. The I/O Display screen displays.

I/O DISPLAY

Digital Inputs Analog Inputs Digital Outputs Analog Outputs

2. Select the input or output on which you’d like to view the status. In this example, we selected Digital Outputs to display the status of the

KYZ

output.

DIGITAL OUTPUTS

KYZ OFF

3. Press the menu button to exit.

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Chapter 3—Operation 63230-300-212 Reading and Writing Registers April 2001

READING AND WRITING REGISTERS

METERS

Summary Powe r Power Quality Energy Power Demand Current Demand Custom

MIN/MAX

Current Voltage Frequency Powe r Power Factor THD

VIEW ALARMS

Active Alarms List High Priority Log

MAIN MENU

Meters Min/Max View Alarms

I/O Display

Resets Setup Diagnostics

I/O DISPLAY

Digital Inputs Analog Inputs Digital Outputs Analog Outputs

You can access the read and write register menu option on the circuit monitor’s display by selecting from the Main Menu > Diagnostics > Read/ Write Regs as shown in Figure 3–9. This option lets you read and write circuit monitor registers from the display. This capability is most useful to users who

1) need to set up an advanced feature which is beyond the circuit monitor’s normal front panel setup mode, and 2) do not have access to

SMS to set up

the feature.

For example, the default operating mode for a circuit monitor relay output is

normal

. To change a relay’s operating mode from normal to another mode

(for example, latched mode), use either

SMS or the Read/Write Regs option

of the Diagnostics menu.

NOTE: Use this feature with caution. Writing an incorrect value, or writing to the wrong register could affect the intended operation of the circuit monitor or its accessories.

To read or write registers, follow these steps:

1. From the Main Menu, select Diagnostics. The Diagnostics menu displays.

DIAGNOSTICS

Meter Information CVM Information Read/Write Regs Wiring Error Test

RESETS

Meters Min/Max Demand Energy

SETUP

Display Communications Meter Alarm I/O Passwords

DIAGNOSTICS

Meter Information CVM Information Read/Write Regs Wiring Error Test

Figure 3–9: Diagnostics Menu accessed

from the Main M enu

2. Select Read/Write Regs. The password prompt displays.

3. Select your password. The default password is 0. The Read/Write Registers screen displays. Table 3–11 describes the

options on this screen.

READ/WRITE REGS

Reg Hex Dec 1003 000A 10

Table 3–11: Read/Write Register Options

Option Available Values

Reg List the register numbers.

Hex List the hexidecimal value of that register.

Dec List the decimal value of that register.

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63230-300-212 Chapter 3—Operation April 2 001 Performing a Wiring Check

If you are viewing a metered value, such as voltage, the circuit monitor updates the displayed value as the register contents change. Note that scale factors are not taken into account automatically when viewing register contents.

4. To scroll through the register numbers, use the arrow buttons.

5. To change the value in the register, press the enter button. The Hex and Dec values begin to blink. Use the arrow buttons to scroll

through the numeric values available.

NOTE: Some circuit monitor registers are read/write,someareread only. You can write to read/write registers only.

6. When you are finished making changes to that register, press the enter button to continue to the next register or press the menu button to save the changes.

PERFORMING A WIRING E RROR TES T

MAIN MENU

Meters Min/Max View Alarms I/O Display Resets Setup Diagnostics

The circuit monitor has the ability to perform a wiring diagnostic self-check when you select the Diagnostic > Wiring Error Test from the Main Menu as showninFigure3–10.

DIAGNOSTICS

Meter Information CVM Information Read/Write Regs Wiring Error Test

Figure 3–10: Wiring Error Test option on the Diagnostics menu.

The circuit monitor can diagnose possible wiring errors when you initiate the wiring test on the Diagnostics menu. Running the test is not required, but may help you to pinpoint a potentially miswired connection. Before running the wiring test, you must first wire the circuit monitor and perform the minimum set up of the circuit monitor, which includes setting up these parameters:

• CT primary and secondary

• PT primary and secondary

• System type

• Frequency

After you have wired and completed the minimum set up, run the wiring test to verify proper wiring of your circuit monitor. The wiring test assumes that the following is true about your system:

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Chapter 3—Operation 63230-300-212 Performing a Wiring Check April 2001

• Voltage connection Van(4-wire) or Vab(3-wire) is correct. This connection must be properly wired for the wiring check program to work.

• 3-phase system. The system must be a 3-phase system. You cannot perform a wiring check on a single-phase system.

• System type. The wiring check can be performed only on the six possible system types: 3∅3W2CT, 3∅3W3CT, 3∅4W3CT, 3∅4W4CT, 3∅4W3CT2PT, and 3∅4W4CT2PT (see Table 5–2 on page 38 of the installation manual for a description of system types).

• Expected displacement power factor is between .60 lagging and .99 leading.

• The load must be at least 1% of the CT Primary setting.

This wiring error program is based on the assumptions above and based on a typical wiring system, results may vary depending on your system and some errors may not apply to your system. When the wiring test is run, the program performs the following checks in this order:

1. Verifies that the system type is one of those listed above.

2. Verifies that the frequency is within ±5% of the frequency that you

selected in circuit monitor set up.

3. Verifies that the voltage phase angles are 120° apart. If the voltage

connections are correct, the phase angles will be 120° apart. If the voltage connections are correct, the test continues.

4. Verifies that the measured phase rotation is the same as the phase

rotation set up in the circuit monitor.

5. Verifies the magnitude of the currents to see if there is enough load on

each phase input to perform the check.

6. Indicates if the 3-phase real power (kW) total is negative, which could

indicate a possible wiring error.

7. Compares each current angle to its respective voltage.

Running t he Diagnostics Wiring Error Test

When the circuit monitor detects a possible error, you can find and correct the problem and then run the check again. Repeat the procedure until no error messages are displayed. To perform a wiring diagnostic test, follow these steps:

1. From the Main Menu, select Diagnostics.

The Diagnostics menu displays.

DIAGNOSTICS

Meter Information CVM Information Read/Write Regs Wiring Error Test

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63230-300-212 Chapter 3—Operation April 2 001 Performing a Wiring Check

2. Select Wiring Error Test from the menu. The circuit monitor asks if the wiring matches the test assumptions.

Test Assumptions:

Va and Vn for 4wire Va and Vb for 3wire are correct.

3. Press the down arrow button. The circuit monitor asks if the expected displacement power factor is

between 0.60 lagging and 0.99 leading.

Test Assumptions:

Displacement PF is between 0.60 lag and 0.99 lead.

4. Press the down arrow button, again. The circuit monitor asks if you’dliketoperformawiringcheck.

Perform Test No

5. Select “Yes ” to perform the test by pressing the up arrow button and then pressing the enter button.

The circuit monitor performs the wiring test. If it doesn’t find any errors, the circuit monitor displays “Wire test

complete. No errors found!”. If it finds possible errors, it displays “Error detected. See following screens for details.”

6. Press the arrow buttons to scroll through the wiring error messages. Tab le 3–12 on page 48 explains the possible wiring error messages.

7. Turn off all power supplying the circuit monitor. Verify that the power is off using a properly rated voltage testing device.

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Chapter 3—Operation 63230-300-212 Performing a Wiring Check April 2001

DANGER

HAZARD OF ELECTRIC SHOCK, BURN, OR EXPLOSION

• Turn off all power supplying the circuit monitor and the equipment in which it is installed before working on it.

• Use a properly rated voltage testing device to verify that the power is off.

• Never short the secondary of a PT.

• Never open circuit a CT; use the shorting block to short circuit

the leads of the CT before removing the connection from the circuit monitor.

Failure to follow this instruction will result in death or serious injury.

8. Correct the wiring errors.

9. Repeat these steps until all errors are corrected.

Table 3–12: Wiring Error M essages

Message Description

Invalid system type

Frequency out of range

Voltage not present on all phases No voltage metered on one or more phases.

Severe voltage unbalance present Voltage unbalance on any phase greater than 70%.

Not enough load to check wiring Metered current below deadband on one or more phases.

Suspected error: Check meter configuration for direct connection Set up for voltage input should be “No PT.”

Suspected error: Reverse polarity on all current inputs Check polarities. Polarities on all CTs could be reversed.

Phase rotation does not match meter setup

Negative kW, check CT & VT polarities

NovoltagemeteredonV1–n NovoltagemeteredonV1–non4-wiresystemonly.

NovoltagemeteredonV2–n NovoltagemeteredonV2–non4-wiresystemonly.

NovoltagemeteredonV3–n NovoltagemeteredonV3–non4-wiresystemonly.

NovoltagemeteredonV1–2 NovoltagemeteredonV1–2.

NovoltagemeteredonV2–3 NovoltagemeteredonV2–3.

No voltage metered on V3-1 No voltage metered on V3-1.

V2–n phase angle out of range V2–n phase angle out of expected range.

V3–n phase angle out of range V3–n phase angle out of expected range.

V2–3 phase angle out of range V2–3 phase angle out of expected range.

V3–1 phase angle out of range V3–1 phase angle out of expected range.

Suspected error: Reverse polarity on V2–n VT Polarity of V2–n VT could be reversed. Check polarity.

Suspected error: Reverse polarity on V3–n VT Polarity of V3–n VT could be reversed. Check polarity.

Suspected error: Reverse polarity on V2–3 VT Polarity of V2–3 VT could be reversed. Check polarity.

The circuit monitor is set up for a system type that the wiring test does not support.

Actual frequency of the system is not the same as the selected frequency configured for the circuit monitor.

Metered phase rotation is different than phase rotation selected in the circuit monitor set up.

Metered kW is negative, which could indicate swapped polarities on any CT or VT.

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63230-300-212 Chapter 3—Operation April 2 001 Performing a Wiring Check

Table 3–12: Wiring Error Messages

Message Description

Suspected error: Polarity on V3–1VT PolarityofV3–1 VT could be reversed. Check polarity.

Suspected er ror: Check V1 input, may be V2 VT Phase 2 VT may actually be connected to input V1.

Suspected er ror: Check V2 input, may be V3 VT Phase 3 VT may actually be connected to input V12

Suspected er ror: Check V3 input, may be V1 VT Phase 1 VT may actually be connected to input V3.

Suspected er ror: Check V1 input, may be V3 VT Phase 3 VT may actually be connected to input V1.

Suspected er ror: Check V2 input, may be V1 VT Phase 1 VT may actually be connected to input V2.

Suspected er ror: Check V3 input, may be V2 VT Phase 2 VT may actually be connected to input V3.

I1 load current less than 1% CT Metered current on I1 less than 1% of CT. Test could not continue.

I2 load current less than 1% CT Metered current on I2 less than 1% of CT. Test could not continue.

I3 load current less than 1% CT Metered current on I3 less than 1% of CT. Test could not continue.

I1 phase angle out of range. Cause of error unknown.

I2 phase angle out of range. Cause of error unknown

I3 phase angle out of range. Cause of error unknown.

Suspected er ror: Reverse polarity on I1 CT. Polarity of I1 CT could be reversed. Check polarity.

Suspected error: Reverse polarity on I2 CT Polarity of I2 CT could be reversed. Check polarity.

Suspected error: Reverse polarity on I3 CT Polarity of I3 CT could be reversed. Check polarity.

Suspected error: Check I1 input, may be I2 CT Phase 2 CT may actually be connected to input I1.

Suspected error: Check I2 input, may be I3 CT Phase 3 CT may actually be connected to input I2.

Suspected error: Check I3 input, may be I1 CT Phase 1 CT may actually be connected to input I3.

Suspected error: Check I1 input, may be I3 CT Phase 3 CT may actually be connected to input I1.

Suspected error: Check I2 input, may be I1 CT Phase 1 CT may actually be connected to input I2.

Suspected error: Check I3 input, may be I2 CT Phase 2 CT may actually be connected to input I3.

Suspected er ror: Check I1 input, may be I2 CT with reverse polarity

Suspected er ror: Check I2 input, may be I3 CT with reverse polarity

Suspected er ror: Check I3 input, may be I1 CT with reverse polarity

Suspected er ror: Check I1 input, may be I3 CT with reverse polarity

Suspected er ror: Check I2 input, may be I1 CT with reverse polarity

Suspected error. Check I3 input, may be I2 CT with reverse polarity

I1 phase angle is out of expected range. Cause of error unable to be determined.

I2 phase angle is out of expected range. Cause of error unable to be determined.

I3 phase angle is out of expected range. Cause of error unable to be determined.

Phase 2 CT may actually be connected to input I1, and the CT polarity may also be reversed.

Phase 3 CT may actually be connected to input I21, and the CT polarity may also be reversed.

Phase 1 CT may actually be connected to input I3, and the CT polarity may also be reversed.

Phase 3 CT may actually be connected to input I1, and the CT polarity may also be reversed.

Phase 1 CT may actually be connected to input I2, and the CT polarity may also be reversed.

Phase 2 CT may actually be connected to input I3, and the CT polarity may also be reversed.

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Chapter 3—Operation 63230-300-212 Performing a Wiring Check April 2001

Page 63

63230-300-212 Chapter 4—Metering Capabilities April 2 001 Chapter Contents

CHAPTER 4—METERING CAPABILITIES

This chapter details the types of meter readings you can obtain from the circuit monitor.

CHAPTER CONTENTS

CHAPTERCONTENTS ......................................51

REAL-TIMEREADINGS ......................................52

MIN/MAXVALUESFORREAL-TIMEREADINGS..................53

PowerFactorMin/MaxConventions .........................54

VARSignConventions ................................55

DEMANDREADINGS........................................56

DemandPowerCalculationMethods ........................57

BlockIntervalDemand ................................57

SynchronizedDemand ................................59

DemandCurrent ........................................59

DemandVoltage ........................................59

ThermalDemand ........................................60

PredictedDemand .......................................60

PeakDemand ..........................................61

Generic Demand ........................................61

InputPulseDemandMetering ..............................62

ENERGYREADINGS ........................................64

POWERANALYSISVALUES..................................66

Page 64

Chapter 4—Metering Capabilities 63230-300-212 Real-Time Readings April 2001

REAL-TIME READINGS

The circuit monitor measures currents and voltages and reports in real time the rms values for all three phases, neutral, and ground current. In addition, the circuit monitor calculates power factor, real power, reactive power, and more.

Ta b le 4 –1 lists some of the real-time readings that are updated every second along with their reportable ranges. When you are viewing real-time readings from the remote display or

SMS, the circuit monitor is displaying 100-ms

readings.

Table 4–1: One-Second, Real-Time Readings Samples

Real-Time Readings Reportable Range

Current

Per-Phase 0 to 32,767 A



Neutral



Ground 3-PhaseAverage 0to32,767A Apparent rms 0 to 32,767 A % Unbalance 0 to ±100.0%

Vol tag e

Line-to-Line, Per-Phase 0 to 1,200 kV Line-to-Line, 3-P hase Average 0 to 1,200 kV Line-to-Neutral, Per-Phase Neutral to Ground



Line-to-Neutral, 3-Phase Average 0 to 1,200 kV % Unbalance



Real Power

Per-Phase



3-Phase Total 0 to ± 3,276.70 MW

Reactive Power

Per-Phase



3-Phase Total 0 to ± 3,276.70 MVAR

Apparent Power

Per-Phase



3-Phase Total 0 to ± 3,276.70 MVA

PowerFactor(True)

Per-Phase



3-Phase Total –0.010 to 1.000 to +0.010

PowerFactor(Displacement)

Per-Phase



3-Phase Total –0.010 to 1.000 to +0.010

Frequency

45–65 Hz 23.00 to 67.00 Hz 350–450Hz 350.00to450.00Hz

Temperature (Internal Ambient) –100.00°C to +100.00°C



Wye systems only.

0to32,767A 0to32,767A

0to1,200kV 0to1,200kV

0to100.0%

0 to ± 3,276.70 MW

0 to ± 3,276.70 MVAR

0 to ± 3,276.70 MVA

–0.010 to 1.000 to +0.010

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63230-300-212 Chapter 4—Metering Capabilities April 2 001 Min/Max Values for Real-time Readings

The circuit monitor also has the capability of 100 ms updates. The 100 ms readings listed in Table 4–2 can be communicated over

MODBUS TCP and

are useful for rms event recording and high-speed alarms.

Table 4–2: 100 ms Real-Time Readings

Real-Time Readings Reportable Range

Current

Per-Phase 0 to 32,767 A



Neutral



Ground 3-Phase Average 0 to 32,767 A Apparent rms 0 to 32,767 A

Voltage

Line-to-Line, Per-Phase 0 to 1,200 kV Line-to-Line, 3-Phase Average 0 to 1,200 kV Line-to-Neutral, Per-Phase Neutral to Ground Line-to-Neutral, 3-Phase Average

Real Power

Per-Phase 3-Phase Total 0 to ± 3,276.70 MW

Reactive Power

Per-Phase 3-Phase Total 0 to ± 3,276.70 MVAR

Apparent Power

Per-Phase 3-Phase Total 0 to ± 3,276.70 MVA

Power Fa cto r

3-Phase Total –0.010 to 1.000 to +0.010



Wye systems only.



0to32,767A 0to32,767A

0to1,200kV 0to1,200kV



0to1,200kV

0 to ± 3,276.70 MW

0 to ± 3,276.70 MVAR

0 to ± 3,276.70 MVA

MIN/MAX VALUES FOR REAL-TIME READINGS

When any one-second real-time reading reaches its highest or lowest value, the circuit monitor saves the value in its nonvolatile memory. These values are called the minimum and maximum (min/max) values. Two logs are associated with min/max values. The Min/Max Log stores the minimum and maximum values since the last reset of the min/max values. The other log, the Interval Min/Max/Average Log, determines min/max values over a specified interval and records the minimum, maximum, and average values for pre-defined quantities over that specified interval. For example, the circuit monitor could record the min, max, and average every 1440 minutes (total minutes in a day) to record the daily value of quantities such as kW demand. See Chapter 7—Logging on page 99 for more about the Min/Max/Average log.

From the circuit monitor display you can:

• View all min/max values since the last reset and view their associated dates and times. See “Viewing Minimum and Maximum Values from the Min/Max Menu” on page 39 for instructions.

• Resetmin/maxvalues.See“Resetting Min/Max, Demand, and Energy Values” on page 37 for reset instructions.

Using

SMS you can also upload both onboard logs—and their associated

dates and times—from the circuit monitor and save them to disk. For

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Chapter 4—Metering Capabilities 63230-300-212 Min/Max Values for Real-time Readings April 2001

instructions on working with logs using SMS, refer to the SMS online help file included with the software.

Power Factor Min/Max Conventions

All running min/max values, except for power factor, are arithmetic minimum and maximum values. For example, the minimum phase A–Bvoltageisthe lowest value in the range 0 to 1200 kV that has occurred since the min/max values were last reset. In contrast, because the power factor’s midpoint is unity (equal to one), the power factor min/max values are not true arithmetic minimums and maximums. Instead, the minimum value represents the measurement closest to –0 on a continuous scale for all real-time readings –0 to 1.00 to +0. The maximum value is the measurement closest to+0onthesamescale.

Figure 4–1 below shows the min/max values in a typical environment in which a positive power flow is assumed. In the figure, the minimum power fact or is –.7 (lagging) and the maximum is .8 (leading). Note that the minimum power factor need not be lagging, and the maximum power factor need not be leading. For example, if the power factor values ranged from –.75 to –.95, then the minimum power factor would be –.75 (lagging) and the maximum power factor would be –.95 (lagging). Both would be negative. Likewise, if the power factor ranged from +.9 to +.95, the minimum would be +.95 (leading) and the maximum would be +.90 (leading). Both would be positive in this case.

Minimum

Power Factor

–.7 (lagging)

Range of

Power Factor

Values

Unity

1.00

Maximum

Power Factor

.8 (leading)

Lag

(–)

–0

Note: Assumes a positive power flow

Lead

(+)

Figure 4–1: Power factor min/max example

An alternate power factor storage method is also available for use with analog outputs and trending. See the footnotes in Appendix A—

Abbreviated Register Listing on page 127 for the applicable registers.

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63230-300-212 Chapter 4—Metering Capabilities April 2 001 Min/Max Values for Real-time Readings

VAR Sign Conventions

Quadrant

watts negative (–) vars negative (–) power factor leading (+)

Reverse Power Flow Normal Power Flow

watts negative (–) vars positive (+) power factor lagging (–)

Reactive

Power In

Quadrant

watts positive (+) vars negative (–) power factor lagging (–)

watts postive (+) vars positive (+) power factor leading (+)

The circuit monitor can be set to one of two VAR sign conventions, the standard IEEE or the ALT (CM1). Circuit monitors manufactured before March 2000 default to the ALT VAR sign convention.The Series 4000 Circuit Monitor defaults to the IEEE VAR sign convention. Figure 4–2 illustrates the VAR sign convention defined by IEEE and the default used by previous model circuit monitors (CM1). For instructions on changing the VAR sign convention, refer to “Advanced Meter Setup” on page 34.

Reactive

Power In

Quadrant

watts positive (+) vars positive (+) power factor lagging (–)

watts positive (+) vars negative (–) power factor leading (+)

Real Power In

Quadrant

watts negative (–) vars positive (+) power factor leading (+)

Reverse Power Flow Normal Power Flow

watts negative (–) vars negative (–) power factor lagging (–)

Quadrant

ALT (CM1) VAR Sign Convention IEEE/IEC VAR Sign Convention

(Series 4000 Circuit Monitor Default)

Figure 4–2: Reactive Power—VAR sign convention

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Chapter 4—Metering Capabilities 63230-300-212 Demand Readings April 2001

DEMAND READINGS

The circuit monitor provides a variety of demand readings, including coincident readings and predicted demands. Table 4–3liststheavailable demand readings and their reportable ranges.

Table 4–3: Demand Readings

Demand Readings Reportable Range

Demand Current, Per-Phase, 3Ø Average, Neutral

Last Complete Interval 0 to 32,767 A Peak 0 to 32,767 A

Demand Voltage, L–N, L–L, Per-phase, Average, N-G

Last Complete Interval 0 to 1200 kV Minimum 0 to 1200 kV Pea k

Average Power Factor (True), 3Ø To t al

Last Complete Interval

Coincident with kW Peak

Coincident with kVAR Peak

Coincident with kVA Peak

Demand Real Power, 3Ø To t a l

Last Complete Interval

Predicted

Pea k

Coincident kVA Demand

Coincident kVAR Demand

Demand Reactive Power, 3Ø To t al

Last Complete Interval

Predicted

Pea k

Coincident kVA Demand

Coincident kW Demand

Demand Apparent Power, 3Ø To ta l

Last Complete Interval

Predicted

Pea k

Coincident kW Demand

Coincident kVAR Demand

0to1200kV

–0.010 to 1.000 to +0.010

0 to ± 3276.70 MW

0 to ± 3276.70 MVA

0 to ± 3276.70 MVAR

0 to ± 3276.70 MVA

0 to ± 3276.70 MW

0 to ± 3276.70 MVA

0 to ± 3276.70 MW

0 to ± 3276.70 MVAR

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63230-300-212 Chapter 4—Metering Capabilities April 2 001 Demand Readings

Demand Power Calculation Methods

Block Interval Demand

Demand power is the energy accumulated during a specified period divided by the length of that period. How the circuit monitor performs this calculation depends on the method you select. To be compatible with electric utility billing practices, the circuit monitor provides the following types of demand power calculations:

• Block Interval Demand

• Synchronized Demand

The default demand calculation is set to sliding block with a 15 minute interval. You can set up any of the demand power calculation methods from the display or from

SMS. For instructions on how to setup the demand

calculation from the display, see “Setting Up the Metering Functions of the Circuit Monitor” on page 16. See the

SMS online help to perform the set up

using the software.

In the block interval demand method, you select a “block” of time that the circuit monitor uses for the demand calculation. You choose how the circuit monitor handles that block of time (interval). Three different modes are possible:

• Sliding Block. In the sliding block interval, you select an interval from 1 to 60 minutes (in 1-minute increments). If the interval is between 1 and 15 minutes, the demand calculation is between 16 and 60 minutes, the demand calculation

seconds

. The circuit monitor displays the demand value for the last

updates every 15 seconds

updates every 60

.Iftheinterval

completed interval.

• Fixed Block. In the fixed block interval, you select an interval from 1 to 60 minutes (in 1-minute increments). The circuit monitor calculates and updates the demand at the end of each interval.

• Rolling Block. In the rolling block interval, you select an interval and a subinterval. The subinterval must divide evenly into the interval. For example, you might set three 5-minute subintervals for a 15-minute interval. Demand is

updated at each subinterval

. The circuit monitor

displays the demand value for the last completed interval.

Figure 4–3 below illustrates the three ways to calculate demand power using the block method. For illustration purposes, the interval is set to 15 minutes.

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Chapter 4—Metering Capabilities 63230-300-212 Demand Readings April 2001

Calculation updates every 15 or 60 seconds

15 30 45

60 . . .

15-minute interval

Sliding Block

Calculation updates at the end of the interval

15-minute interval15-minute interval

15 30 45

Fixed Block

Demand value is the average for the last completed interval

Time (sec)

Demand value is the average for last completed interval

15-min

Time (min)

Calculation updates at the end of the subinterval (5 min.)

15-minute interval

20 35 4025

Figure 4–3: Block Interval Demand Examples

30 45

Rolling Block

Demand value is the average for last completed interval

Time (min)

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63230-300-212 Chapter 4—Metering Capabilities April 2 001 Demand Readings

Synchronized Demand

The demand calculations can be synchronized by accepting an external pulse input, a command sent over communications, or by synchronizing to the internal real-time clock.

• Input Synchronized Demand. You can set up the circuit monitor to accept an input such as a demand synch pulse from an external source. The circuit monitor then uses the same time interval as the other meter for each demand calculation. You can use any digital input installed on the meter to receive the synch pulse. When setting up this type of demand, you select whether it will be input-synchronized block or inputsynchronized rolling block demand. The rolling block demand requires that you choose a subinterval.

• Command Synchronized Demand. Using command synchronized demand, you can synchronize the demand intervals of multiple meters on a communications network. For example, if a PLC input is monitoring a pulse at the end of a demand interval on a utility revenue meter, you could program the PLC to issue a command to multiple meters whenever the utility meter starts a new demand interval. Each time the command is issued, the demand readings of each meter are calculated for the same interval. When setting up this type of demand, you select whether it will be command-synchronized block or command-synchronized rolling block demand. The rolling block demandrequires that you choose a subinterval. See Appendix B—Using the Command Interface on page 181 for more information.

• Clock SynchronizedDemand. You can synchronize the demand interval to the internal real-time clock in the circuit monitor. This enables you to synchronize the demand to a particular time, typically on the hour. The default time is 12:00 am. If you select another time of day when the demand intervals are to be synchronized, the time must be in minutes from midnight. For example, to synchronize at 8:00 am, select 480 minutes. When setting up this type of demand, you select whether it will be clock-synchronized block or clock-synchronized rolling block demand. The rolling block demand requires that you choose a subinterval.

Demand Current

Demand Voltage

The circuit monitor calculates demand current using the thermal demand method. The default interval is 15 minutes, but you can set the demand current interval between 1 and 60 minutes in 1-minute increments.

The circuit monitor calculates demand voltage. The default voltage demand mode is thermal demand with a 15-minute demand interval. You can also set the demand voltage to any of the block interval demand modes described in “Block Interval Demand” on page 57.

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Chapter 4—Metering Capabilities 63230-300-212 Demand Readings April 2001

Thermal Demand

Predicted Demand

The thermal demand method calculates the demand based on a thermal response, which mimics thermal demand meters. The demand calculation updates at the end of each interval. You select the demand interval from 1 to 60 minutes (in 1-minute increments). In Figure 4–4 the interval is set to 15 minutes for illustration purposes.

The interval is a window of time that moves across the timeline.

99%

90%

Last completed demand interval

% of Load

15-minute

interval

Calculation updates at the end of each interval

15-minute

interval

Time

(minutes)

Figure 4–4: Thermal Demand Example

The circuit monitor calculates predicted demand for the end of the present interval for kW, kVAR, and kVA demand. This prediction takes into account the energy consumption thus far within the present (partial) interval and the present rate of consumption. The prediction is updated every second.

Demand for last completed interval

Figure 4–5 illustrates how a change in load can affect predicted demand for the interval.

Predicted demand is updated every second.

Beginning

of interval

15-minute interval

Partial Interval

Demand

1:00 1:06 1:15

Change in Load

Figure 4–5: Predicted Demand Example

Predicted demand if load is added during interval, predicted demand increases to reflect increased demand

Predicted demand if no load added

Time

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63230-300-212 Chapter 4—Metering Capabilities April 2 001 Demand Readings

Peak Demand

Generic Demand

In nonvolatile memory, the circuit monitor maintains a running maximum for power demand values, called “peak demand.” The peak is the highest average for each of these readings: kWD, kVARD, and kVAD since the last reset. The circuit monitor also stores the date and time when the peak demand occurred. In addition to the peak demand, the circuit monitor also stores the coinciding average 3-phase power factor. The average 3-phase power factor is defined as “demand kW/demand kVA” for the peak demand interval. Table 4–3 on page 56 lists the available peak demand readings from the circuit monitor.

You can reset peak demand values from the circuit monitor display. From the Main Menu, select Resets > Demand. You can also reset the values over the communications link by using

SMS.SeetheSMS online help for instructions.

NOTE: You should reset peak demand after changes to basic meter setup, such as CT ratio or system type.

The circuit monitor also stores the peak demand during the last incremental energy interval. See “Energy Readings” on page 64 for more about incremental energy readings.

The circuit monitor can perform any of the demand calculation methods, described earlier in this chapter, on up to 20 quantities that you choose. In

SMS the quantities are divided into two groups of 10, so you can set up two

different demand “profiles.” For each profile, you do the following in

SMS:

• Select the demand calculation method (thermal, block interval, or synchronized).

• Select the demandinterval (from 5–60 minutes in 1–minute increments) and select the demand subinterval (if applicable).

• Select the quantities on which to perform the demand calculation. You must also select the units and scale factor for each quantity.

Use the Device Setup > Basic Setup tab in

SMS to create the generic

demand profiles. For example, you might set up a profile to calculate the 15-minute average value of an analog input. To do this, select a fixed-block demand interval with a 15-minute interval for the analog input.

For each quantity in the demand profile, the circuit monitor stores four values:

• Partial interval demand value

• Last completed demand interval value

• Minimum values (date and time for each is also stored)

• Peak demand value (date and time for each is also stored)

You can reset the minimum and peak values of the quantities in a generic demand profile by using one of two methods:

• Use

SMS (see the SMS online help file), or

• Use the command interface. Command 5115 resets the generic demand profile 1. Command 5116 resets the generic demand profile 2. See Appendix B—Using the Command Interface on page 181 for more about the command interface.

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Chapter 4—Metering Capabilities 63230-300-212 Demand Readings April 2001

Input Pulse Demand Metering

The circuit monitor has ten input pulse metering channels. The channels count pulses received from one or more digital inputs assigned to that channel. Each channel requires a consumption pulse weight, consumption scale factor, demand pulse weight, and demand scale factor. The consumption pulse weight is the number of watt-hours or kilowatt-hours per pulse. The consumption scale factor is a factor of 10 multiplier that determines the format of the value. For example, if each incoming pulse represents 125 Wh, and you want consumption data in watt-hours, the consumption pulse weight is 125 and the consumption scale factor is zero. The resulting calculation is 125 x 10

, which equals 125 watt-hoursper pulse.

If you want the consumption data in kilowatt-hours, the calculation is 125 x

-3

, which equals 0.125 kilowatt-hours per pulse.

Time must be taken into account for demand data so you begin by calculating demand pulse weight using the following formula:

watts =

watt-hours x 3600 seconds x pulse

per pulse per hour per second

If each incoming pulse represents 125 Wh, using the formula above you get 450,000 watts. If you want demand data in watts, the demand pulse weight is 450 and the demand scale factor is three. The calculation is 450 x 10

, which equals 450,000 watts. If you want the demand data in kilowatts, the calculation is 450 x 10

, which equals 450 kilowatts.

The circuit monitor counts each input transition as a pulse. Therefore, for an input transition of OFF-to-ON and ON-to-OFF will be counted as two pulses. For each channel, the circuit monitor maintains the following information:

• Total consumption

• Last completed interval demand—calculated demand for the last

completed interval.

• Partial interval demand—demand calculation up to the present point

during the interval.

• Peak demand—highest demand value since the last reset of the input

pulse demand. The date and time of the peak demand is also saved.

• Minimum demand—lowest demand value since the last reset of the input

pulse demand. The date and time of the minimum demand is also saved.

For example, you can use channels to verify utility charges. In Figure 4–6, Channel 1 is adding demand from two utility feeders to track total consumption and demand for the building. This information could be viewed in

SMS and compared against the utility charges.

To use the channels feature, first set up the digital inputs from the display or from

SMS.See“SettingUpI/Os” on page 23 in Chapter 3—Operation for

instructions. Then using

SMS, you must set the I/O operating mode to Normal

and set up the channels. The demand method and interval that you select applies to all channels. See the

SMS online help for instructions on device set

up of the CM4000 Circuit Monitor.

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63230-300-212 Chapter 4—Metering Capabilities April 2 001 Demand Readings

Building A

For all channels

To Utility Meter on Feeder 1

To Utility Meter on Feeder 2

Units: kWh for consumption data kW for demand data Fixed block demand with 15 min interval

Channel 1

Pulses from both inputs are totaled

An SMS table

Channel 2

Pulses from

shows the demand calculation results by channel

only one input

Figure 4–6: Channel pulse metering example

Page 76

Chapter 4—Metering Capabilities 63230-300-212 Energy Readings April 2001

ENERGY READINGS

The circuit monitor calculates and stores accumulated energy values for real and reactive energy (kWh and kVARh) both into and out of the load, and also accumulates absolute apparent energy. Table 4–4 lists the energy values the circuit monitor can accumulate.

Table 4–4: Energy Readings

Energy Reading, 3-Phase Reportable Range Shown on the Display

Accumulated Energy

Real (Signed/Absolute)

Reactive (Signed/Absolute)

Real (In)

Real (Out) 0 to 9,999,999,999,999,999 Wh

Reactive (In) 0 to 9,999,999,999,999,999 VARh

Reactive (Out) 0 to 9,999,999,999,999,999 VARh

Apparent 0 to 9,999,999,999,999,999 VAh

Accumulated Energy, Conditional

Real (In)

Real (Out)

Reactive (In)

Reactive (Out)

Apparent

Accumulated Energy, Incremental

Real (In) 0 to 999,999,999,999 Wh

Real (Out) 0 to 999,999,999,999 Wh

Reactive (In) 0 to 999,999,999,999 VARh

Reactive (Out) 0 to 999,999,999,999 VARh

Apparent 0 to 999,999,999,999 VAh

Reactive Energy

Quadrant 1

Quadrant 2

Quadrant 3

Quadrant 4



Values can be displayed on the screen by creating custom quantities and custom displays.



   

-9,999,999,999,999,999 to 9,999,999,999,999,999 Wh

-9,999,999,999,999,999 to 9,999,999,999,999,999 VARh

0 to 9,999,999,999,999,999 Wh

0 to 9,999,999,999,999,999 VARh

0 to 9,999,999,999,999,999 VAh

0 to 999,999,999,999 VARh

0000.000kWh to 99,999.99 MWh and

0000.000 to 99,999.99 MVARh

0000.000kWh to 99,999.99 MWh and

0000.000 to 99,999.99 MVARh

Not shown on the display. Readings are obtained only through the communications link.

0000.000kWh to 99,999.99 MWh and

0000.000 to 99,999.99 MVARh

Not shown on the display. Readings are obtained only through the communications link.

The circuit monitor can accumulate the energy values shown in Table 4–4in one of two modes: signed or unsigned (absolute). In signed mode, the circuit monitor considers the direction of power flow, allowing the magnitude of accumulated energy to increase and decrease. In unsigned mode, the circuit monitor accumulates energy as a positive value, regardless of the direction of power flow. In other words, the energy value increases, even during reverse power flow. The default accumulation mode is unsigned.

You can view accumulated energy from the display. The resolution of the energy value will automatically change through the range of 000.000 kWh to 000,000 MWh (000.000 to 000,000 MVARh), or it can be fixed. See Appendix A—Abbreviated Register Listing on page 127 for the contents of the registers.

Page 77

63230-300-212 Chapter 4—Metering Capabilities April 2 001 Energy Readings

For conditional accumulated energy readings, you can set the real, reactive, and apparent energy accumulation to

OFF or ON when a particular condition

occurs. You can do this over the communications link, using a command, or from a digital input change. For example, you may want to track accumulated energy values during a particular process that is controlled by a PLC. The circuit monitor stores the date and time of the last reset of conditional energy in nonvolatile memory.

Also, the circuit monitor provides an additional energy reading that is only available over the communications link:

• Four-quadrant r eactive accumulated energy readings. The circuit

monitor accumulates reactive energy (kVARh) in four quadrants as shown in Figure 4–7. The registers operate in unsigned (absolute) mode in which the circuit monitor accumulates energy as positive.

NOTE: The reactive accumulated energy is not affected by the VAR sign convention and will remain as shown in the image below.

Reactive

Power In

Quadrant

watts negative (–) vars positive (+) power factor leading (+)

Reverse Power Flow Normal Power Flow

watts positive (+) vars positive (+) power factor lagging (–)

Real Power

watts negative (–) vars negative (–) power factor lagging (–)

Quadrant

watts positive (+) vars negative (–) power factor leading (+)

Quadrant

Figure 4–7: Reactive energy accumulates in four quadrants

Page 78

Chapter 4—Metering Capabilities 63230-300-212 Power Analysis Values April 2001

POWER ANALYSIS VALUES

The circuit monitor provides a number of power analysis values that can be used to detect power quality problems, diagnose wiring problems, and more. Ta b le 4 –5 on page 68 summarizes the power analysis values.

• THD. Total Harmonic Distortion (THD) is a quick measure of the total

distortion present in a waveform and is the ratio of harmonic content to the fundamental. It provides a general indication of the “quality” of a waveform. THD is calculated for both voltage and current. The circuit monitor uses the following equation to calculate THD where H is the harmonic distortion:

THD =

100%

• thd. An alternate method for calculating Total Harmonic Distortion, used

widely in Europe. It considers the total harmonic current and the total rms content rather than fundamental content in the calculation. The circuit monitor calculates thd for both voltage and current. The circuit monitor uses the following equation to calculate thd where H is the harmonic distortion:

thd =

100%

Total rms

• TDD. Total Demand Distortion (TDD) is used to evaluate the harmonic

voltages and currents between an end user and a power source. The harmonic values are based on a point of common coupling (PCC), which is a common point that each user receives power from the power source. The following equation is used to calculate TDD where I of individual harmonic components, h is the harmonic order, and I

is the magnitude

is the

maximum demand load current in register 3233:

255

TDD =

• K-factor. K-factor is a simple numerical rating used to specify

transformers for nonlinear loads. The rating describes a transformer’s ability to serve nonlinear loads without exceeding rated temperature rise limits. The higher the K-factor rating, the better the transformer’s ability to handle the harmonics. The circuit monitor uses the following equation to calculate K-factor where I order:

h=2

is harmonic current and h is the harmonic

K =

SUM

h 2

rms

h )

100%

Page 79

63230-300-212 Chapter 4—Metering Capabilities April 2 001 Power Analysis Values

• Displacement PowerFactor. Power factor (PF) represents the degree to

which voltage and current coming into a load are out of phase. When true power factor is based on the angle between the fundamental components of current and voltage.

• Harmonic Values. Harmonics can reduce the capacity of the power

system. The circuit monitor determines the individual per-phase harmonic magnitudes and angles through the 63rd harmonic for all currents and voltages. The harmonic magnitudes can be formatted as either a percentage of the fundamental (default) or a percentage of the rms value. Refer to “Setting Up Individual Harmonic Calculations” on page 190 in

Appendix B—Using the Command Interface for information on how to

configure harmonic calculations.

• Harmonic Power. Harmonic power is an indication of the non-

fundamental components of current and power in the electrical circuit.The circuit monitor uses the following equation to calculate harmonic power.

Harmonic Power =

Overall Power

Fundamental Power

• Distortion Power Factor.Distortion power factor is an indication of the

distortion power content of non-linear loads. Linear loads do not contribute to distortion power even when harmonics are present. Distortion power factor provides a way to describe distortion in terms of its total contribution to apparent power. The circuit monitor uses the following equation to calculate the distortion power factor.

Distortion Power Factor =

Overall Power Power Factor

Fundamental Power Power Factor

Page 80

Chapter 4—Metering Capabilities 63230-300-212 Power Analysis Values April 2001

Table 4–5: Power Analysis Values

Value Reportable Range

THD—Voltage, Current

3-phase, per-phase, neutral 0 to 3,276.7%

thd—Voltage, Current

3-phase, per-phase, neutral 0 to 3,276.7%

Total Demand Distortion 0 to 10,000

K-Factor (per phase)

K-Factor Demand (per phase)

Crest Factor (per phase)

Displacement P.F. (per phase, 3-phase)

Fundamental Voltages (per phase)

Magnitude 0 to 1,200 kV

Angle 0.0 to 359.9°

Fundamental Currents (per phase)

Magnitude 0 to 32,767 A

Angle 0.0 to 359.9°

Fundamental Real Power (per phase, 3-phase)

Fundamental Reactive Power (per phase)

Harmonic Power (per phase, 3-phase)

Phase Rotation ABC or CBA

Unbalance (current and voltage)

Individual Harmonic Magnitudes

Individual Harmonic Angles

Distortion Power –32,767 to 32,767

Distortion Power Factor 0 to 1,000



Readings are obtained only through communications.



K-Factor not available at 400Hz.



Harmonic magnitudes and angles through the 63rd harmonic at 50Hz and 60Hz; harmonic magnitudes and angles through the 7th harmonic at 400Hz.







 



0.0to100.0

–0.010 to 1.000 to +0.010



0to32,767kW

0 to 32,767 kVAR

0 to 32,767 kW

0.0to100.0%

0to327.67%

0.0° to 359.9°

Page 81

63230-300-212 Chapter 5—Input/Output Capabilities April 2 001 Chapter Contents

CHAPTER 5—INPUT/OUTPUT CAPABILITIES

This chapter explains the input and output (I/O) capabilities of the circuit monitor and its optional I/O accessories. For module installation instructions and detailed technical specifications, refer to the individual instruction bulletins that ship with the product. For a list of these publications, see Table 1–2 on page 3 of this bulletin.

CHAPTER CONTENTS

CHAPTERCONTENTS ......................................69

I/OOPTIONS ..............................................70

DIGITALINPUTS ...........................................71

DEMANDSYNCHPULSEINPUT ..............................72

ANALOGINPUTS...........................................73

AnalogInputExample ....................................74

RELAYOUTPUTOPERATINGMODES .........................75

MECHANICALRELAYOUTPUTS ..............................77

Setpoint-controlledRelayFunctions .........................78

SOLID-STATEKYZPULSEOUTPUT ...........................78

2-WirePulseInitiator .....................................79

3-WirePulseInitiator .....................................79

CALCULATINGTHEKILOWATTHOUR-PER-PULSEVALUE ........80

ANALOGOUTPUTS.........................................81

AnalogOutputExample ...................................82

Page 82

Chapter 5—Input/Output Capabilities 63230-300-212 I/O Options April 2001

I/O OPTIONS

The circuit monitor supports a variety of input and output options including:

• Digital Inputs

• Analog Inputs

• Mechanical Relay Outputs

• Solid State KYZ Pulse Outputs

• Analog Outputs

The circuit monitor has one KYZ output as standard. You can expand the I/O capabilities by adding the optional I/O Extender (IOX) and the digital I/O option card (IOC-44). Table 5–1 lists the many available I/O options. The I/O options are explained in detail in the sections that follow.

Table 5–1: I/O Extender Options

I/O Extender Options Part Number

with no preinstalled I/ Os, accepts up to 8 individual I/O modules with a maximum of 4 analog I/ Os

with 4 digital inputs (32 Vdc), 2 digital outputs (60 Vdc), 1analogoutput(4–20 mA), and 1 analog input (0–5Vdc)

with 4 digital inputs (120 Vac) and 4 analog inputs (4–20 mA)

with 8 digital inputs (120 Vac) IOX08

Individual I/O Modules

DigitalI/Os

120 Vac input DI120AC

240 Vac input DI240AC

32 Vdc input (0.2ms turn on) polarized DI32DC

120 Vac output (3.5A maximum) DO120AC

200 Vdc output (3.5A maximum) DO200DC

240 Vac output (3.5A maximum) DO240AC

60 Vdc output (3.5A maximum) DO60DC

Analog I/Os

0 to 5 Vdc analog input AI05

4 to 20 mA analog input AI420

4to20mAanalogoutput AO420



The circuit monitor must be equipped with the I/O Extender (IOX) to install the modules.



IOX

IOX2411

IOX0404

Part Number

Page 83

63230-300-212 Chapter 5—Input/Output Capabilities April 2 001 Digital Inputs

DIGITAL INPUTS

The circuit monitor can accept up to 16 digital inputs depending on the I/O accessories you select. Digital inputs are used to detect digital signals. For example, the digital input can be used to determine circuit breaker status, count pulses, or count motor starts. Digital inputs canalso be associated with an external relay, which can trigger a waveform capture in the circuit monitor. You can log digital input transitions as events in the circuit monitor’s on-board alarm Log. The event is date and time stamped with resolution to the millisecond, for sequence of events recording. The circuit monitor counts

OFF-to-ON transitions for each input, and you can reset this value using the

command interface.

Digital inputs have four operating modes:

• Normal—Use the normal mode for simple on/off digital inputs. In normal

mode, digital inputs can be used to count KYZ pulses for demand and energy calculation. Using the input pulse demand feature, you can map multiple inputs to the same channel where the circuit monitor can total pulses from multiple inputs (see“Input Pulse Demand Metering” on page 62 in Chapter 4—Metering Capabilities for more information). To accurately count pulses, set the time between transitions from

OFF to ON

and ON to OFF to at least 20 milliseconds.

• Demand Interval Synch Pul se—you can configure any digital input to

accept a demand synch pulse from a utility demand meter (see “Demand Synch Pulse Input” on page 72 of this chapter for more about this topic). For each demand profile, you can designate only one input as a demand synch input.

• Time Synch—you can configure one digital input to receive a signal from

a GPS receiver that provides a serial pulse stream in accordance to the DCF-77 format to synchronize the internal clock of the circuit monitor.

• Conditional Energy Control—you can configure one digital input to control conditional energy (see “Energy Readings” on page 64 in Chapter 4—Metering Capabilities for more about conditional energy).

To set up a digital input on the I/O extender, you must first define it from the display. From the main menu, select Setup > I/O. Select the appropriate digital input option. For example, if you are using IOX-2411 option of the I/O Extender, select IOX-2411. For detailed instructions, see “Setting Up I/Os” on page 23 in Chapter 3—Operation. Then using SMS, define the name and operating mode of the digital input. The name is a 16-character label that identifies the digital input. The operating mode is one of those listed above. See the SMS online help for instructions on device set up of the circuit monitor.

Page 84

Chapter 5—Input/Output Capabilities 63230-300-212 Demand Synch Pulse Input April 2001

DEMAND SYNCH PULSE INPUT

You can configure the circuit monitor to accept a demand synch pulse from an external source such as another demand meter. By accepting demand synch pulses through a digital input, the circuit monitor can make its demand interval “window” match the other meter’s demand interval “window.” The circuit monitor does this by “watching” the digital input for a pulse from the other demand meter. When it sees a pulse, it starts a new demand interval and calculates the demand for the preceding interval. The circuit monitor then uses the same time interval as the other meter for each demand calculation. Figure 5–1 illustrates this point. See “Synchronized Demand” on page 59 in Chapter 4—Metering Capabilities for more about demand calculations.

When in demand synch pulse operating mode, the circuit monitor will not start or stop a demand interval without a pulse. The maximum allowable time between pulses is 60 minutes. If 66 minutes (110% of the demand interval) pass before a synch pulse is received, the circuit monitor throws out the demand calculations and begins a new calculation when the next pulse is received. Once in synch with the billingmeter, the circuit monitor can be used to verify peak demand charges.

Important facts about the circuit monitor’s demand synch feature are listed below:

• Any installed digital input can be set to accept a demand synch pulse.

• Each system can choose whether to use an external synch pulse, but only

one demand synch pulse can be brought into the meter for each demand system. One input can be used to synchronize any combination of the demand systems.

• The demand synch feature can be set up from

SMS. See the SMS online

help for instructions on device set up of the circuit monitor.

Normal Demand Mode

Billing Meter Demand Timing

Circuit Monitor Demand Timing

External Synch Pulse Demand Timing

Utility Meter Synch Pulse

Figure 5–1: Demand synch pulse timing

Billing Meter Demand Timing

Circuit Monitor Demand Timing (Slaved to Master)

Page 85

63230-300-212 Chapter 5—Input/Output Capabilities April 2 001 Analog Inputs

ANALOG INPUTS

Depending on the I/O modules you select, the circuit monitor can accept either voltage or current signals through its analog inputs. See Table 5–1on page 70 for a list of I/O options. The circuit monitor stores a minimum and a maximum value for each analog input.

For technical specifications and instructions on installing I/O modules, refer to the instruction bulletin that ships with the I/O (see Table 1–2onpage3for a list of these publications). To set up analog inputs, you must first set it up from the display. From the main menu, select Setup > I/O, then select the appropriate analog input option. For example, if you are using the

IOX0404

option of the I/O Extender, select IOX-0404. For detailed instructions, see “SettingUpI/Os” on page 23 in Chapter 3—Operation. Then, in

SMS define

the following values for each analog input:

• Name—a 16-character label used to identify the analog input.

• Units—the units of the monitored analog value (for example, “psi”).

• Scale factor—multiplies the units by this value (such as tenths or

hundreths).

• Report Range Lower Limit—the value the circuit monitor reports when the input reaches a minimum value. When the input current is below the lowest valid reading, the circuit monitor reports the lower limit.

• Report Range Upper Limit—the value the circuit monitor reports when the input reaches the maximum value. When the input current is above highest valid reading, the circuit monitor reports the upper limit.

For instructions on setting up analog inputs in circuit monitor in the

SMS online help.

SMS,seedevicesetupofthe

Page 86

Chapter 5—Input/Output Capabilities 63230-300-212 Analog Inputs April 2001

Analog I nput Example

Figure 5–2 shows an analog input example. In this example, the analog input has been configured as follows:

Upper Limit: 500

Lower Limit: 100

Units: psi

Ta b le 5 –2 shows circuit monitor readings at various input currents.

Table 5–2: Sample register readings for analog inputs

Input Current (mA) Circuit Monitor Reading (psi)

3 (invalid) 100

4100

8200

10 250

20 500

21 (invalid) 500

Circuit Monitor

Reading

Upper

()

Lower

()

Figure 5–2: Analog input example

Limit

500 psi

100 psi

4 mA 20 mA

Minimum

Input Current

()

Input Current

Maximum

Input Current

()

Page 87

63230-300-212 Chapter 5—Input/Output Capabilities April 2 001 Relay Output Operating Modes

RELAY OUTPUT OPERATING MODES

Before we describe the 11 available relay operating modes, it is important to understand the difference between a relay configured for remote (external) control and a relay configured for circuit monitor (internal) control.

Each relay output defaults to external control, but you can choose whether the relay is set to external or internal control:

• Remote (external)control—the relay is controlled either from a

SMS or a programmable logic controller using commands via

PC using

communications.

• Circuit monitor (internal) control—the relay is controlled by the circuit monitor in response to a set-point controlled alarm condition, or as a pulse initiator output. Once you’ve set up a relay for circuit monitor control, you can no longer operate the relay remotely. However, you can temporarily override the relay, using

SMS.

NOTE: If any basic setup parameters or I/O setup parameters are modified, all relay outputs will be de-energized.

The 11 relay operating modes are as follows:

• Normal

Remotely Controlled:

—

a remote

PC or programmable controller. The relay remains energized

until a command to de-energize is issued from the remote

Energize the relay by issuing a command from

PC or

programmable controller, or until the circuit monitor loses control power. When control power is restored, the relay will be re-energized.

—

Circuit Monitor Controlled:

When an alarm condition assigned to the

relay occurs, the relay is energized. The relay is not de-energized until

all

alarm conditions assigned to the relay have dropped out, the circuit monitor loses control power, or the alarms are over-ridden using SMS software. If the alarm condition is still true when the circuit monitor regains control power, the relay will be re-energized.

• Latched

—

Remotely Controlled:

a remote

PC or programmable controller. The relay remains energized

until a command to de-energize is issued from a remote

Energize the relay by issuing a command from

PC or

programmable controller, or until the circuit monitor loses control power. When control power is restored, the relay will not be reenergized.

—

Circuit Monitor Controlled:

When an alarm condition assigned to the relay occurs, the relay is energized. The relay remains energized— even after all alarm conditions assigned to the relay have dropped out—until a command to de-energize is issued from a remote PC or programmable controller, until the high priority alarm log is cleared from the display, or until the circuit monitor loses control power. When control power is restored, the relay will not be re-energized if the alarm condition is not TRUE.

Page 88

Chapter 5—Input/Output Capabilities 63230-300-212 Relay Output Operating Modes April 2001

• Timed

Remotely Controlled:

—

Energize the relay by issuing a command from a remote PC or programmable controller. The relay remains energized until the timer expires, or until the circuit monitor loses control power. If a new command to energize the relay is issued before the timer expires, the timer restarts. If the circuit monitor loses control power, the relay will be re-energized when control power is restored and the timer will reset to zero and begin timing again.

—

Circuit Monitor Controlled:

When an alarm condition assigned to the relay occurs, the relay is energized. The relay remains energized for the duration of the timer. When the timer expires, the relay will deenergize and remain de-energized. If the relay is on and the circuit monitor loses control power, the relay will be re-energized when control power is restored and the timer will reset to zero and begin timing again.

• End Of Power Demand Interval

This mode assigns the relay to operate as a synch pulse to another device. The output operates in timed mode using the timer setting and turns on at the end of a power demand interval. It turns off when the timer expires. Because of it’s long life, this mode should be used with solid state relay outputs.

• Absolute kW h Pulse

This mode assigns the relay to operate as a pulse initiator with a user-defined number of kWh per pulse. In this mode, both forward and reverse real energy are treated as additive (as in a tie circuit breaker).

• Absolute kVARh Pulse

This mode assigns the relay to operate as a pulse initiator with a user-defined number of kVARh per pulse. In this mode, both forward and reverse reactive energy are treated as additive (as in a tie circuit breaker).

• kVAhPulse

This mode assigns the relay to operate as a pulse initiator with a user-defined number of kVAh per pulse. Since kVA has no sign, the kVAh pulse has only one mode.

• kWhInPulse

This mode assigns the relay to operate as a pulse initiator with a user-defined number ofkWh per pulse. In this mode, only the kWh flowing into the load is considered.

• kVARh In Pulse

This mode assigns the relay to operate as a pulse initiator with a user-defined number of kVARh per pulse. In this mode, only the kVARh flowing into the load is considered.

• kWh Out Pulse

This mode assigns the relay to operate as a pulse initiator with a user-defined number ofkWh per pulse. In this mode, only the kWh flowing out of the load is considered.

• kVARhOut Pulse

This mode assigns the relay to operate as a pulse initiator with a user-defined number of kVARh per pulse. In this mode, only the kVARh flowing out of the load is considered.

Page 89

63230-300-212 Chapter 5—Input/Output Capabilities April 2 001 Mechanical Relay Outputs

MECHANICAL RELAY OUTPUTS

The optional Input/Output Card IOC44 provides three Form-C, 10 A mechanical relays that can be used to open or close circuit breakers, annunciate alarms, and more.

The mechanical output relays of the circuit monitor can be configured to operate in one of 11 operating modes:

• Normal

• Latched (electrically held)

• Timed

• End of power demand interval

• Absolute kWh pulse

• Absolute kVARh pulse

• kVAh pulse

• kWh in pulse

• kVARh in pulse

• kWh out pulse

• kVARh out pulse

See the previous section “Relay Output Operating Modes” on page 75 for a description of the modes.

The last seven modes in the list above are for pulse initiator applications. All Series 4000 Circuit Monitors are equipped with one solid-state output rated at 96 mA and an additional

IOC44 card. The solid-state KYZ output provides the long life—billions of

KYZ pulse output is available on the

KYZ pulse

operations—required for pulse initiator applications. The mechanical relay outputs have limited lives: 10 million operations under no load; 100,000 under load. For maximum life, use the solid-state

KYZ pulse output for pulse

initiation, except when a rating higher than 96 mA is required. See“SolidState KYZ Pulse Output” on page 78 in this chapter for a description of the solid-state

KYZ pulse output.

To set up a mechanical relay output, from the Main Menu, select Setup >

I/O.

Select input option IOC44. For detailed instructions, see “Setting Up I/Os” on page 23 in Chapter 3—Operation.Thenusing

SMS, you must define the

following values for each mechanical relay output:

• Name—A 16-character label used to identify the digital output.

• Mode—Select one of the operating modes listed above.

• Pulse Weight—You must set the pulse weight, the multiplier of the unit

being measured, if you select any of the pulse modes (last 7 listed above).

• Timer—You must set the timer if you select the timed mode or end of

power demand interval mode (in seconds).

• Control—You must set the relay to be controlled either remotely or

internally (from the circuit monitor) if you select the normal, latched, or timed mode.

For instructions on setting up digital

I/OsinSMS,seetheSMS online help on

device set up of the circuit monitor.

NOTE: The IOC44 can be set up using the display or SMS. The IOX must be identified using the display, then set up using the display or SMS.

Page 90

Chapter 5—Input/Output Capabilities 63230-300-212 Solid-State KYZ Pulse Output April 2001

Setpoint-controlled Relay Functions

SOLID-STATE KYZ PULSE O UTPUT

The circuit monitor can detect over 100 alarm conditions, including over/ under conditions, digital input changes, phase unbalance conditions, and more (see Chapter 6—Alarms on page 83 for more about alarms). Using

SMS, you can configure a relay to operate when an alarm condition is true.

For example, you could set up the three relays on the

IOC44 card to operate

at each occurrence of “Undervoltage Phase A.” Then, each time the alarm condition occurs—that is, each time the setpoints and time delays assigned to Undervoltage Phase A are satisfied—the circuit monitor automatically operates relays R1, R2, and R3 according to their configured mode of operation. See “Relay Output Operating Modes” on page 75 of this chapter for a description of the operating modes.

Also, you can assign multiple alarm conditions to a relay. For example, relay AR1 on the IOC-44 card could have “Undervoltage Phase A” and “Undervoltage Phase B” assigned to it. The relay would operate whenever either condition occurred.

NOTE: Setpoint-controlled relay operation can be used for some types of non-time-critical relaying. For more information, see “Setpoint-Controlled Relay Functions” on page 88 in

Chapter 6—Alarms

This section describes the pulse output capabilities of the circuit monitor. For instructions on wiring the

KYZ pulse output, see “Wiring the Solid-State KYZ

Output” on page 55 in Chapter 5—Wiring of the installation manual.

The circuit monitor is equipped with one solid-state

KYZ pulse output located

near the option card slots. The IOC44 option card also has a solid-state KYZ output. The solid-state relays provides the extremely long life—billions of operations—required for pulse initiator applications.

The

KYZ output is a Form-C contact with a maximum rating of 96 mA.

Because most pulse initiator applications feed solid-state receivers with low burdens, this 96 mA rating is adequate for most applications. For applications where a higher rating is required, the ampere ratings. Use

SMS or the display to configure any of the 10 ampere

IOC44 card provides 3 relays with 10

relays as a pulse initiator output. Keep in mind that the 10 ampere relays are mechanical relays with limited life—10 million operations under no load; 100,000 under load.

To set the kilowatthour-per-pulsevalue, use SMS or the display. When setting the kWh/pulse value, set the value based on a 3-wire pulse output. For instructions on calculating the correct value, see “Calculating the Kilowatthour-Per-Pulse Value” on page 80 in this chapter.

The circuit monitor can be used in 2-wire or 3-wire pulse initiator applications. Each of these applications is described in the sections that follow.

The

KYZ pulse output can be configured to operate in one of 11 operating

modes. See “Relay Output Operating Modes” on page 75 for a description of the modes.

The setup in

SMS or at the circuit monitor display is the same as a

mechanical relay. See the previous section “Mechanical Relay Outputs” on page 77, for the values you must set up in

SMS.

Page 91

63230-300-212 Chapter 5—Input/Output Capabilities April 2 001 Solid-State KYZ Pulse Output

2-Wire Pulse Initiator

Most digital inputs in energy management systems use only two of the three wires provided with a KYZ pulse initiator. This is called a 2-wire pulse initiator application. Figure 5–3 shows a pulse train from a 2-wire pulse initiator application.

In a 2-wire application, the pulse train looks like the alternating open and closed states of a Form-A contact. Most 2-wire pulse initiator applications use a Form-C contact, but tie into only one side of the Form-C contact where the pulse is the transition from OFF to ON of that side of the Form-C relay. In Figure 5–3, the transitions are marked as 1 and 2. Each transition represents the time when the relay transitions from KZ to KY. Each time the relay transitions, the receiver counts a pulse. The circuit monitor can deliver up to 25 pulses per second in a 2-wire application.

3-Wire Pulse Initiator

Figure 5–3: Two-wire pulse train

Some applications require the use of all three wires provided with the KYZ pulse initiator. This is called a 3-wire pulse initiator application. Figure 5–4 shows a pulse train for a 3-wire pulse initiator application.

Three-wire KYZ pulses are the transitions between KY and KZ. These transitions are the alternate contact closures of a Form-C contact. In Figure 5–4, the transitions are marked as 1, 2, 3, and 4. The receiver counts a pulse at each transition. That is, each time the Form-C contact changes state from KY to KZ, or from KZ to KY, the receiver counts a pulse.The circuit monitor can deliver up to 50 pulses per second in a 3-wire application.

1 3 42

Figure 5–4: Thr ee-wire pulse train

Page 92

Chapter 5—Input/Output Capabilities 63230-300-212 Calculating the Watthour-Per-Pulse Value April 2001

CALCULATING THE KILOWATTHOUR-PER-PULSE VALUE

This section shows an example of how to calculate kilowatthours per pulse. To calculate this value, first determine the highest kW value you can expect and the required pulse rate. In this example, the following assumptions are made:

• The metered load should not exceed 1600 kW.

• About two KYZ pulses per second should occur at full scale.

Step 1: Convert 1600 kW load into kWh/second.

(1600 kW) (1 Hr) = 1600 kWh

(1600 kWh) = “X” kWh

1 hour

1 second

(1600 kWh) = “X” kWh

3600 seconds

1 second

X = 1600/3600 = 0.4444 kWh/second

Step 2: Calculate the kWh required per pulse.

0.4444 kWh/second = 0.2222 kWh/pulse

2 pulses/second

Step 3: Round to nearest hundreth, since the circuit monitor only accepts

0.01 kWh increments.

Ke = 0.22 kWh/pulse

Summary:

• 3-wire application—0.22 kWh/pulse provides approximately 2 pulses per

second at full scale.

• 2-wire application—0.11 kWh/pulse provides approximately 2 pulses per

second at full scale. (To convert to the kWh/pulse required for a 2-wire application, divide Ke by 2. This is necessary because the circuit monitor Form C relay generates two pulses—KY and KZ—for every pulse that is counted.)

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63230-300-212 Chapter 5—Input/Output Capabilities April 2 001 Analog Outputs

ANALOG OUTPUTS

This section describes the circuit monitor’s analog output capabilities. For technical specifications and instructions on installing the I/O Extender or analog output modules, refer to the instruction bulletin that ships with the I/O (see Table 1–2 on page 3 for a list of these publications).

To set up analog outputs, you must first define it from the display. From the main menu, select Setup > I/O. Select the appropriate analog output option. For example, if you are using the IOX0404 option of the I/O Extender, select IOX0404. For detailed instructions, see “SettingUpI/Os” on page 23 in Chapter 3—Operation.Thenusing values for each analog output:

• Name—A 16-character label used to identify the output. Default names are assigned, but can be customized

• Output register—The circuit monitor register assigned to the analog output.

• Lower Limit—The value equivalent to the minimum output current. When the register value is below the lower limit, the circuit monitor outputs the minimum output current.

• Upper Limit—The value equivalent to the maximum output current. When the register value is above the upper limit, the circuit monitor outputs the maximum output current.

For instructions on setting up an analog output in help on device set up of the circuit monitor.

SMS, you must define the following

SMS,seetheSMS online

CAUTION

HAZARD OF EQUIPMENT DAMAGE

Each analog output represents an individual 2-wire current loop; therefore, use an isolated receiver for on the I/O Extender (IOX).

Failure to observe this instruction can result in equipment damage.

each

individual analog output

Page 94

Chapter 5—Input/Output Capabilities 63230-300-212 Analog Outputs April 2001

Analog Out put Example

Figure 5–5 illustrates the relationship between the output range of current (in milliamperes) and the upper and lower limit of power usage (real power in kW). In this example, the analog output has been configured as follows:

Lower Limit: 100 kW

Upper Limit: 500 kW

Ta b le 5 –3 shows the output current at various register readings.

Table 5–3: Sample register readings for analog output

RegisterReading (kW) OutputCurrent (mA)

50 4

100 4

200 8

250 10

500 20

550 20

Output Current

Maximum

()

Output Current

Minimum

()

Output Current

20 mA

4 mA

100 kW 500 kW

Lower

()

Limit

Figure 5–5: Analog output example

Upper

()

Limit

Real Power, 3Ø Total (from register 1143)

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63230-300-212 Chapter 6—Alarms April 2 001 Chapter Contents

CHAPTER 6—ALARMS

This chapter provides a detailed discussion of the alarm capabilities of the circuit monitor.

CHAPTER CONTENTS

CHAPTERCONTENTS ......................................83

ABOUTALARMS ...........................................84

AlarmsGroups ..........................................84

Setpoint-DrivenAlarms ...................................85

Priorities ...............................................87

AlarmLevels ...........................................87

CUSTOMALARMS..........................................88

SETPOINT-CONTROLLEDRELAYFUNCTIONS ..................88

TypesofSetpoint-ControlledRelayFunctions .................89

SCALEFACTORS ..........................................91

SCALINGALARMSETPOINTS ................................92

ALARMCONDITIONSANDALARMNUMBERS ...................93

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Chapter 6—Alarms 63230-300-212 About Alarms April 2001

ABOUT ALARMS

Alarms Groups

The circuit monitor can detect over 100 alarm conditions, including over or under conditions, digital input changes, phase unbalance conditions, and more. It also maintains a counter for each alarm to keep track of the total number of occurrences. A complete list of default alarm configurations are described in Table 6–3 on page 94. In addition, you can set up your own custom alarms and set up relays to operate on alarm conditions.

When one or more alarm conditions are true, the circuit monitor will execute a task automatically. Using

SMS or the display, you can set up each alarm

condition to perform these tasks:

• Force data log entries in up to 14 user-defined data log files. See Chapter 7—Logging on page 99 for more about data logging.

• Perform event captures. See Chapter8—Waveform and Event Capture

on page 107 for more about event recording.

• Operate relays. Using

SMS you can assign one or more relays to operate

when an alarm condition is true. See the SMS online help for more about this topic.

Whether you are using a default alarm or creating a custom alarm, you first choose the alarm group that is appropriate for the application. Each alarm condition is assigned to one of these alarm groups:

• Standard—Standard alarms have a detection rate of 1 second and are useful for detecting conditions such as over current and under voltage. Up to 80 alarms can be set up in this alarm group

• High Speed—High speed alarms have a detection rate of 100 milliseconds and are useful for detecting voltage sags and swells lasting only a few cycles. Up to 20 alarms can be set up in this group.

• Disturbance—Disturbance alarms have a detection rate one cycle and are useful for detecting voltage sags and swells. Up to 20 alarms can be set up in this group. See Chapter 9—Disturbance Monitoring on page 113 for more about disturbance monitoring.

• Digital—Digital alarms are triggered by an exception such as the transition of a digital input or the end of an incremental energy interval. Up to 40 alarms can be set up in this group.

• Boolean—Boolean alarms use Boolean logic to combine up to four enabled alarms. You can choose from the Boolean logic operands:

NAND, OR, NOR

,orXOR to combine your alarms. Up to 15 alarms can be

AND,

set up in this group.

Use either

SMS or the display to set up any of the alarms.

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63230-300-212 Chapter 6—Alarms April 2 001 About Alarms

Setpoint-Driven Alarms

Many of the alarm conditions require that you define setpoints. This includes all alarms for over, under, and phase unbalance alarm conditions. Other alarm conditions such as digital input transitions and phase reversals do not require setpoints. For those alarm conditions that require setpoints, you must define the following information:

• Pickup Setpoint

• Pickup Delay (depending on the alarm group, you choose the time in

seconds, 100 ms increments, or cycles)

• Dropout Setpoint

• Dropout Delay (depending on the alarm group, you choose the time in

seconds, 100 ms increments, or cycles)

NOTE: Alarms with both Pickup and Dropout setpoints set to zero are invalid.

To understand how the circuit monitor handles setpoint-driven alarms, see Figure 6–2 on page 86. Figure 6–1 shows what the actual alarm Log entries for Figure 6–2 might look like, as displayed by

SMS.

NOTE: The software does not actually display the codes in parentheses— EV1, EV2, Max1, Max2. These are references to the codes in Figure 6–2.

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Chapter 6—Alarms 63230-300-212 About Alarms April 2001

(EV2)

(EV1)

Pickup Setpoint

Dropout Setpoint

(Max2)

(Max1)

Figure 6–1: Sample alarm log entry

Max2

Max1

∆T ∆T

Pickup Delay

EV1

Alarm Period

Figure 6–2: How the circuit monitor handles setpoint-driven alarms

EV1—The circuit monitor records the date and time that the pickup setpoint

and time delay were satisfied, and the maximum value reached (Max1) during the pickup delay period (∆T). Also, the circuit monitor performs any tasks assigned to the event such as waveform captures or forced data log entries.

EV2—The circuit monitor records the date and time that the dropout setpoint and time delay were satisfied, and the maximum value reached (Max2) during the alarm period.

The circuit monitor also stores a correlationsequence number ( event (such as

Dropout

can sort pickups and dropouts by of a particular alarm. The pickup and dropout entries of an alarm will have the same pickups and dropouts with the same

Under Voltage Phase A Pickup, Under Voltage Phase A

). The CSN lets you relate pickups and dropouts in the alarm log. You

CSN to correlate the pickups and dropouts

CSN. You can also calculate the duration of an event by looking at

CSN.

Dropout Delay

EV2

CSN) for each

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63230-300-212 Chapter 6—Alarms April 2 001 About Alarms

Priorities

Alarm Levels

Each alarm also has a priority level. Use the priorities to distinguish between events that require immediate action and those that do not require action.

• High priority—if a high priority alarm occurs, the display informs you in

two ways: the LED onthe display flashes until you acknowledge the alarm and a message displays while the alarm is active.

• Medium pr iority—if a medium priority alarm occurs, the LED flashes and

a message displays only while the alarm is active. Once the alarm becomes inactive, the LED stops flashing.

• Low priority—if a low priority alarm occurs, the LED on the display

flashes only while the alarm is active. No alarm message is displayed.

• No priority—if an alarm is setup with no priority, no visible representation

will appear on the display. Alarms with no priority are not entered in the Alarm Log. See Chapter 7—Logging for alarm logging information.

If multiple alarms with different priorities are active at the same time, the display shows the alarm message for the last alarm that occurred. For instructions on setting up alarms from the circuit monitor display, see “Setting Up and Editing Alarms” on page 21.

From the display or

SMS, multiple alarms can be set up for one particular

quantity (parameter) to create alarm “levels”. You can take different actions depending on the severity of the alarm.

For example, you could set up two alarms for kW Demand. A default alarm already exists for kW Demand (no. 26 in the alarm list), but you could create another custom alarm for kW Demand, selecting different pickup points for it. The custom kW Demand alarm, once created, will appear in the standard alarm list. For illustration purposes, let’s set the default kW Demand alarm to 120 kW and the new custom alarm to 150 kW. One alarm named

Demand

; the other

kW Demand 150kW

as shown in Figure 6–3. Note that if

you choose to set up two alarms for the same quantity, use slightly different names to distinguish which alarm is active. The display can hold up to 15 characters for each name. You can create up to 10 alarm levels for each quantity.

kW Demand

150 Alarm #43 Pick Up

140

130

120

100

Demand OK Demand OK

kW Demand (default) Alarm #26 kW Demand with pickup of 120 kWd, medium priority

Alarm #26 Pick Up

Approaching

Peak Demand

Exceeded

kW Demand 150kW (custom) Alarm #43 kW Demand with pickup of 150 kWd, high priority

Alarm # 43 Drop Out

Alarm #26 Drop Out

Below Peak

Demand

Time

Figure 6–3: Two alarms set up for the same quantity wi th different

pickup and dropout set points

Page 100

Chapter 6—Alarms 63230-300-212 Custom Alarms April 2001

CUSTOM ALARMS

SETPOINT-CONTROLLED RELAY FUNCTIONS

The circuit monitor has many pre-defined alarms, but you can also set up your own custom alarms. For example, you may need to alarm on the ON-toOFF transition of a digital input. To create this type of custom alarm:

1. Select the appropriate alarm group (digital in this case).

2. Select the type of alarm (described in Table 6–4 on page 96).

3. Give the alarm a name.

After creating a custom alarm, you can configure it by applying priorities, setting pickups and dropouts (if applicable), and so forth. For instructions on creating custom alarms, see “Creating a New Custom Alarm” on page 19 in Chapter 3—Operation.

NOTE: The circuit monitor will automatically create alarms for the IOC44 and the IOX when the modules are identified. These are OFF-to-ON alarms.

A circuit monitor can mimic the functions of certain motor management devices to detect and respond to conditions such as phase loss, undervoltage, or reverse phase relays. While the circuit monitor is not a primary protective device, it can detect abnormal conditions and respond by operating one or more Form-C output contacts. These outputs can be used to operate an alarm horn or bell to annunciate the alarm condition.

NOTE: The circuit monitor is not designed for use as a primary protective relay. While its setpoint-controlled functions may be acceptable for certain applications, it should not be considered a substitute for proper circuit protection.

If you determine that the circuit monitor’s performance is acceptable for the application, the output contacts can be used to mimic some functions of a motor management device. When deciding if the circuit monitor is acceptable for these applications, keep the following points in mind:

• Circuit monitors require control power to operate properly.

• Circuit monitors may take up to 5 seconds after control power is applied

before setpoint-controlled functions are activated. If this is too long, a reliable source of control power is required.

• When control power is interrupted for more than approximately 100 milliseconds, the circuit monitor releases all energized output contacts.

• Standard setpoint-controlled functions may take 1–2 seconds to operate, in addition to the intended delay.

• A password is required to program the circuit monitor’s setpoint controlled relay functions.

• Changing certain setup parameters after installation may operate relays in a manner inconsistent with the requirements of the application.

For instructions on configuring setpoint-controlled alarms or relays from the circuit monitor’s display, see “Setting Up and Editing Alarms” on page 21. The types of available alarms are described later in this chapter in Ta b le 6 –3 on page 94.