Merlin Gerin PowerLogic 2000 Installation Manual

Download

Installation and Operation



Circuit Monitor

Series 2000

3020IB9814

December 1998

NOTICE

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

DANGER

Used where there is hazard of serious injury or death. Failure to follow a “DANGER” instruction

Used where there is hazard of serious injury or death. Failure to follow a “WARNING” instruction

will

result in death or serious injury.

WARNING

can

result in death or serious injury.

CAUTION

Used where there is hazard of equipment damage. Failure to follow a “CAUTION” instruction can result in damage to equipment.

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

PLEASE NOTE: Electrical equipment should be serviced only by qualified electrical maintenance personnel,

and this document should not be viewed as sufficient for those who are not otherwise qualified to operate, service, or maintain the equipment discussed. Although reasonable care has been taken to provide accurate and authoritative information in this document, no responsibility is assumed by Square D for any consequences arising out of the use of this material.

FCC NOTICE: This equipment complies with the requirements in Part 15 of FCC rules for a Class A

computing device. Operation of this equipment in a residential area may cause unacceptable interference to radio and TV reception, requiring the operator to take whatever steps are necessary to correct the interference.

TECHNICAL SUPPORT

For technical support, please contact your Schneider Electric representative, who will contact the Power Management Operation Technical Support Center. The Technical Support Center will respond to your questions by telephone, fax, or mail.

POWERLOGIC, SY/MAX, SY/NET, SY/LINK, POWER-ZONE, VISI-VAC, ISO-FLEX and are Registered Trademarks of Square D Company. SYSTEM MANAGER and CIRCUIT TRACKER are Trademarks of Square D Company.

Windows, Windows NT, and Windows 95 are Registered Trademarks of Microsoft Corporation. Other names are trademarks or service marks of their respective companies.

Contents

CONTENTS

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

What is the Circuit Monitor? ................................................................................................................................. 1

Expanded Memory.................................................................................................................................................. 3

Requirements for Using.................................................................................................................................. 4

Identifying the Series and Firmware Revisions .......................................................................................... 4

Model Numbers ............................................................................................................................................... 4

Upgrading Existing Circuit Monitors........................................................................................................... 5

Memory Options Summary ........................................................................................................................... 5

Safety Precautions ................................................................................................................................................... 6

Using This Bulletin .................................................................................................................................................. 6

Notational Conventions.................................................................................................................................. 6

Topics Not Covered Here............................................................................................................................... 7

Related Documents ................................................................................................................................................. 7

Reference Manual ............................................................................................................................................ 8

CHAPTER 2—HARDWARE DESCRIPTION ..................................................................................................9

Front Panel................................................................................................................................................................ 9

Rear Connections ................................................................................................................................................... 11

CHAPTER 3—INSTALLATION .....................................................................................................................13

CE Compliance ...................................................................................................................................................... 14

Mounting the Circuit Monitor ............................................................................................................................. 15

Wiring CTs, PTs, and Control Power ................................................................................................................. 17

Wiring Multiple Circuit Monitors to a Single Set of PTs/CPT ............................................................... 25

Deriving Control Power from Phase PT Inputs ........................................................................................ 26

Grounding the Circuit Monitor .......................................................................................................................... 27

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

Connecting to a System Display.................................................................................................................. 29

Connecting to a Personal Computer........................................................................................................... 30

Connecting to a POWERLOGIC Ethernet Gateway................................................................................. 31

Connecting to a POWERLOGIC Network Interface Module ................................................................. 32

Connecting to a SY/MAX Programmable Controller .............................................................................. 33

Length of the Communications Link .......................................................................................................... 34

Daisy-Chaining POWERLOGIC Devices ................................................................................................... 35

Terminating the Communications Link ..................................................................................................... 36

Biasing the Communications Link .............................................................................................................. 37

CHAPTER 4—FRONT PANEL OPERATION ...............................................................................................39

The Setup Mode ..................................................................................................................................................... 40

The Configuration Option............................................................................................................................ 40

The Resets Option.......................................................................................................................................... 40

The Alarm/Relay Option ............................................................................................................................. 40

The Diagnostics Option ................................................................................................................................ 40

Choosing a Setup Option ............................................................................................................................. 41

How the Buttons Work ................................................................................................................................. 41

Bulletin No. 3020IB9814 December 1998

Configuring the Circuit Monitor ......................................................................................................................... 42

Configuring the Circuit Monitor (cont.)

Performing Resets Using the Resets Option ...................................................................................................... 56

Setting Up Alarm/Relay Functions .................................................................................................................... 58

Viewing Active Alarms ........................................................................................................................................ 63

Viewing the Priority 1 Log ................................................................................................................................... 64

Clearing the Priority 1 Log ................................................................................................................................... 65

Factory Defaults ............................................................................................................................................. 42

General Configuration Procedure ............................................................................................................... 42

Viewing Configuration Data in Protected Mode ...................................................................................... 45

Setting the Master Password........................................................................................................................ 46

Setting the CT Ratios ..................................................................................................................................... 47

Setting the PT Ratio ....................................................................................................................................... 48

Setting the System Type ............................................................................................................................... 48

Setting the Demand Interval ........................................................................................................................ 49

Setting the Watthour/Pulse Output ........................................................................................................... 51

Setting the Device Address .......................................................................................................................... 52

Setting the Baud Rate .................................................................................................................................... 53

Setting the Nominal Frequency ................................................................................................................... 54

Resetting Demand, Energy, and Min/Max Values .................................................................................. 55

General Setup Procedure.............................................................................................................................. 59

Detailed Setup Procedure............................................................................................................................. 60

CHAPTER 5—MAINTENANCE AND TROUBLESHOOTING ......................................................................67

Maintenance ........................................................................................................................................................... 67

Battery-Backed RAM..................................................................................................................................... 67

Troubleshooting..................................................................................................................................................... 68

Getting Technical Support ................................................................................................................................... 69

APPENDICES

Appendix A—Circuit Monitor Dimensions ...................................................................................................... 71

Appendix B—Specifications ................................................................................................................................ 73

Appendix C—Installing Terminal Strip Covers ............................................................................................... 75

FIGURES

2-1 Circuit monitor front panel ...................................................................................................................... 10

2-2 Back of the circuit monitor ....................................................................................................................... 11

3-1 Example of disconnect breaker for CE compliance ..............................................................................14

3-2 Panel preparation ...................................................................................................................................... 16

3-3 Circuit monitor mounted in electrical panel ......................................................................................... 16

3-4 3-phase, 3-wire delta connection ............................................................................................................. 18

3-5 3-phase, 4-wire wye, ground connection ............................................................................................... 19

3-6 3-phase, 4-wire wye, ground connection, metered neutral ................................................................. 20

3-7 3-phase, 4-wire wye, 3-wire load ............................................................................................................ 21

3-8 2-1/2 element metering system type 42 (calculated neutral).............................................................. 22

3-9 2-1/2 element metering system type 43 ................................................................................................. 23

Contents

3-10 DC control power connections ................................................................................................................ 24

3-11 Circuit monitors connected to one set of PTs and one CPT ................................................................ 25

3-12 Deriving L-L control power from phase PT inputs .............................................................................. 27

3-13 Deriving L-N control power from phase PT inputs .............................................................................27

3-14 Grounding the circuit monitor ................................................................................................................ 28

3-15 Circuit monitors connected to a system display for circuit monitors................................................ 29

3-16 POWERLOGIC devices connected directly to a personal computer ................................................. 30

3-17 POWERLOGIC devices connected to an Ethernet gateway ............................................................... 31

3-18 POWERLOGIC devices connected to a PNIM ......................................................................................32

3-19 POWERLOGIC devices connected to a SY/MAX programmable controller................................... 33

3-20 Daisy-chaining the RS-485 communications terminals........................................................................ 35

3-21 Terminator placement when last device on the link is a circuit monitor .......................................... 36

3-22 Multipoint communications adapter connected to PNIM .................................................................. 37

4-1 Choosing a Setup option .......................................................................................................................... 41

4-2 Flowchart for front panel configuration................................................................................................. 44

4-3 Flowchart for performing resets using the Resets option.................................................................... 57

4-4 Alarm/Relay setup.................................................................................................................................... 59

A-1 Circuit monitor dimensions ..................................................................................................................... 71

A-2 Circuit monitor dimensions with Input/Output and Voltage/Power Modules............................. 72

A-3 Circuit monitor with Input/Output Module ........................................................................................ 72

C-1 Installing terminal strip covers ................................................................................................................ 75

TABLES

1-1 Summary of circuit monitor instrumentation ......................................................................................... 3

1-2 Class 3020 circuit monitors......................................................................................................................... 3

1-3 Circuit monitor feature comparison ......................................................................................................... 3

3-1 Typical circuit monitor mounting locations .......................................................................................... 15

3-2 Supported system wiring connections ................................................................................................... 17

3-3 Maximum distances of comms link at different baud rates ................................................................ 34

4-1 Factory defaults for front panel configuration parameters ................................................................. 42

4-2 Supported system type system code selections .................................................................................... 48

4-3 Maximum distances of comms link at varying baud rates ................................................................. 53

iii

Chapter 1—Introduction

CHAPTER 1—INTRODUCTION

CHAPTER CONTENTS This chapter offers a general description of the circuit monitor, describes

important safety precautions, tells how to best use this bulletin, and lists related documents. Topics are discussed in the following order:

What is the Circuit Monitor?................................................................................. 1

Expanded Memory ...................................................................................................3

Requirements for Using ...............................................................................4

Identifying the Series and Firmware Revisions........................................4

Model Numbers ............................................................................................4

Upgrading Existing Circuit Monitors ........................................................ 5

Memory Options Summary.........................................................................5

Safety Precautions................................................................................................... 6

Using This Bulletin ................................................................................................. 6

Notational Conventions ......................................................................... 6

Topics Not Covered Here ...................................................................... 7

Related Documents ................................................................................................. 7

Reference Manual ...................................................................................... 8

Note: This edition of the circuit monitor instruction bulletin describes features available in series G4 or later and firmware version 17.009 (or higher). Series 2000 circuit monitors with older series numbers or firmware versions will not include all features described in this instruction bulletin. not have the latest firmware version and you want to upgrade their firmware, contact your local Schneider Electric representative for information on purchasing the Class 3020 Type CM-2000U Circuit Monitor Firmware Upgrade Kit.

If you have Series 2000 circuit monitors that do

WHAT IS THE The POWERLOGIC Circuit Monitor is a multifunction, digital CIRCUIT MONITOR? instrumentation, data acquisition and control device. It can replace a variety

of meters, relays, transducers and other components. The circuit monitor is equipped with RS-485 communications for integration into any power monitoring and control system. However, POWERLOGIC System Manager application software—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 31st harmonic. Over 50 metered values plus extensive minimum and maximum data can be viewed from the six-digit LED display. Table 1-1 on page 3 provides a summary of circuit monitor instrumentation.

The circuit monitor is available in several models to meet a broad range of power monitoring and control applications. Table 1-2 on page 3 lists the circuit monitor models. Table 1-3 compares the features available by model.

Circuit monitor capabilities can be expanded using add-on modules that mount on the back of the circuit monitor. A voltage/power module and several input/output modules are available. See I/O Capabilities in the Circuit Monitor Reference Manual for a description of the available I/O modules.

Bulletin No. 3020IB9814 December 1998

What is the Circuit Monitor? (cont.)

Using POWERLOGIC application software, users can upgrade circuit monitor firmware through either the RS-485 or front panel optical communications ports. This feature can be used to keep all circuit monitors up to date with the latest system enhancements.

Some of the circuit monitor’s many features include:

• True rms metering (31st harmonic)

• Accepts standard CT and PT inputs

• Certified ANSI C12.16 revenue accuracy

• High accuracy—0.2% current and voltage

• Over 50 displayed meter values

• Min/Max displays for metered data

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

• Real time harmonic magnitudes and angles

• Current and voltage sag/swell detection and recording

• On-board clock/calendar

• Easy front panel setup (password protected)

• RS-485 communications standard

• Front panel, RS-232 optical communications port standard

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

• 1 ms time stamping of status inputs for sequence-of-events recording

• I/O modules support programmable KYZ pulse output

• Setpoint-controlled alarm/relay functions

• On-board event and data logging

• Waveform and event captures, user-selectable for 4, 12, 36, 48, or 60 cycles

• 64 and 128 point/cycle waveform captures

• High-speed, triggered event capture

• Programming language for application specific solutions

• Downloadable firmware

• System connections – 3-phase, 3-wire Delta – 3-phase, 4-wire Wye – Metered or calculated neutral – Other metering connections

• Optional voltage/power module for direct connection to 480Y/277V

•

Optional control power module for connecting to 18–60 Vdc control power

• Wide operating temperature range standard (-25 to +70°C)

• UL Listed, CSA certified, and CE marked

• MV-90TM billing compatible

• Pre-configured data log and alarms

Chapter 1—Introduction

Table 1-1

Summary of Circuit Monitor Instrumentation

Real-Time Readings

•Current (per phase, N, G, 3Ø)

•Voltage (L-L, L-N)

•Real Power (per phase, 3Ø)

•Reactive Power (per phase, 3Ø)

•Apparent Power (per phase, 3Ø)

•Power Factor (per phase, 3Ø)

•Frequency

•Temperature (internal ambient)*

•THD (current and voltage)

•K-Factor (per phase)

Demand Readings

•Demand Current (per-phase present, peak)

• Demand Voltage (per-phase present, peak)*

•Average Power Factor (3Ø total)*

•Demand Real Power (3Ø total)

•Demand Reactive Power (3Ø total)*

•Demand Apparent Power (3Ø total)

•Coincident Readings*

•Predicted Demands*

• Accumulated Energy, Real

• Accumulated Energy, Reactive

• Accumulated Energy, Apparent*

• Bidirectional Readings*

• Crest Factor (per phase)

• K-Factor Demand (per phase)

• Displacement Power Factor (per phase, 3Ø)

• 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)

* Available via communications only.

Energy Readings

Power Analysis Values*

Table 1-2

Class 3020 Circuit Monitors

Type Description

CM-2050 Instrumentation, 1% accuracy CM-2150 Instrumentation, 0.2% accuracy, data logging, alarm/relay functions CM-2250 Waveform capture, plus CM-2150 features CM-2350 Instrumentation, waveform capture, 0.2% accuracy CM-2450 Programmable for custom applications, plus-2350 features

Table 1-3

Circuit Monitor Feature Comparison

Feature CM-2050 CM-2150 CM-2250 CM-2350 CM-2450

Full Instrumentation ✘✘✘✘✘ RS-485 Comm Port ✘✘✘✘✘ Front Panel Optical Comm Port ✘✘✘✘✘ 1% Accuracy Class ✘

0.2% Accuracy Class ✘✘✘✘ Alarm/Relay Functions ✘✘✘✘ On-board Data Logging ✘✘✘✘ Downloadable Firmware ✘✘✘✘ Date/Time for Each Min/Max ✘✘✘✘ Waveform Capture ✘✘✘ Extended Event Capture ✘✘✘ Extended Memory (up to 1.1 Meg.)* ✘✘✘✘ Sag/Swell Detection ✘✘ Programmable for Custom Applications ✘

* Standard memory: CM-2150, CM-2250, CM-2350, and CM-2450 = 100K; CM-2452 = 356K

EXPANDED MEMORY New Series G4 (or higher) circuit monitor models CM-2150 and higher now

are factory-equipped with 100 kilobytes (100K) of nonvolatile memory. (Earlier Series G3 models CM-2150 and CM-2250 shipped with 11K of memory, models CM-2350 and CM-2450 with 100K of memory.)

Bulletin No. 3020IB9814 December 1998

EXPANDED MEMORY (cont.) For applications where additional memory is required, you can order a

circuit monitor with an optional 512K or 1024K memory expansion card, resulting in 612K or 1124K, respectively, total nonvolatile memory (100K base memory plus the expansion card memory). Memory upgrade kits are also available for most earlier circuit monitors. See Upgrading Existing Circuit Monitors, page 5.

Requirements for Using System Manager software version 3.02 with Service Update 1, 3.02a with Expanded Memory Service Update 1, or 3.1 (or higher) is required to take advantage of expan-

sion card memory or the 100K of memory standard on G4 circuit monitors. Earlier versions of System Manager software will recognize only 11K (the Series G3 and earlier memory capacity) of available memory.

Also, your circuit monitor must be equipped with firmware version 17.008 or later to take advantage of expanded memory. The following section tells how to determine the firmware version shipped with your circuit monitor.

To determine if your circuit monitor firmware version has been updated with downloadable firmware, see Viewing Configuration Data in Protected Mode, page 45.

To obtain the latest available firmware revision contact your local Schneider Electric representative (see Note, page 1.)

Identifying the Series and The circuit monitor series and firmware revision number are printed on a Firmware Revisions sticker on the top of the circuit monitor enclosure. Figure 1-1 shows a sample

sticker.

63230-204-106

Series

Series: G2C U6 REV: 16-16.007

Firmware Revision

Figure 1-1: Circuit monitor series/firmware revision sticker

U33 REV: 16.007

Model Numbers Circuit monitor models equipped with an optional memory expansion card

are differentiated from standard models by a suffix—either -512k or -1024k— added to the model number (table 1-4). As shown in the table, the memory expansion option is available for model numbers CM-2150, CM-2250, CM-2350, and CM-2450. The CM-2452 circuit monitor is now obsolete and has been replaced by the CM-2450-512k, which has more memory at a lower price than the CM-2452. However, existing CM-2452 circuit monitors can be upgraded as detailed on the following page.

Table 1-4

Circuit Monitor Model Numbers

Standard Models Models with 512k Option Models with 1024k Option

3020 CM-2050 N/A N/A 3020 CM-2150 3020 CM-2150-512k 3020 CM-2150-1024k 3020 CM-2250 3020 CM-2250-512k 3020 CM-2250-1024k 3020 CM-2350 3020 CM-2350-512k 3020 CM-2350-1024k 3020 CM-2450 3020 CM-2450-512k 3020 CM-2450-1024k

Chapter 1—Introduction

Upgrading Existing Memory upgrade kits are available for field installation by a qualified Circuit Monitors electrician. No special tools are required.

DANGER

HAZARD OF ELECTRIC SHOCK, BURN, OR EXPLOSION

Only qualified electrical workers should install a memory upgrade kit in a circuit monitor. Perform the upgrade only after reading the installation instructions shipped with the upgrade kit. Before removing the cover of the circuit monitor to install the memory board:

• Disconnect all voltage inputs to the circuit monitor

• Short the CT secondaries

• De-energize the control power inputs

Failure to observe this precaution will result in death or serious injury.

For Series G3 and earlier circuit monitors, the memory upgrade kit can be installed only in circuit monitor models CM-2350 and CM-2450.

Note: Model CM-2452 was factory-equipped with 100K of memory and a 256K memory expansion card, for a total of 356K of memory. The 256K card can be removed and replaced with a 512K or 1024K expansion card, for total memory of either 612K or 1124K.

The memory upgrade kit can be installed in Series G4 models CM-2150 and higher. Memory upgrade kits are available with either the 512k or 1024k memory card (see table 1-5). No special tools are required for installation.

Table 1-5

Memory Upgrade Kit Part Numbers

Part Number Description

3020 CM-MEM-512K 512K Memory Upgrade Kit for Series 2000 Circuit Monitors 3020 CM-MEM-1024K 1024K Memory Upgrade Kit for Series 2000 Circuit Monitors

Memory Options Summary Table 1-6 summarizes the memory options now available for Series 2000

Circuit Monitors. To obtain price and availability on circuit monitors with expanded memory and circuit monitor memory upgrade kits, contact your local sales representative.

Table 1-6

Series 2000 Circuit Monitor Memory Options

Total Memory Capacity

Model Number Series G3 or Earlier Series G4 or Later

Standard 512K Expansion 1024K Expansion Standard 512K Expansion 1024K Expansion

CM-2050 N/A N/A N/A N/A N/A N/A CM-2150 11K N/A N/A 100K 612K 1124K CM-2250 11K N/A N/A 100K 612K 1124K CM-2350 100K 612K 1124K 100K 612K 1124K CM-2450 100K 612K 1124K 100K 612K 1124K CM-2452 356K 612K ➀ 1124K ➀ Obsolete

➀ CM-2452 256K memory expansion card removed and replaced with 512K or 1024K memory expansion card.

Bulletin No. 3020IB9814 December 1998

SAFETY PRECAUTIONS

DANGER

HAZARD OF BODILY INJURY OR EQUIPMENT DAMAGE

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

• 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 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, grounded, and tagged. Pay particular attention to the design of the power system. Consider all sources of power, including the possibility of backfeeding.

Failure to observe this precaution will result in death, serious injury or equipment damage.

USING THIS BULLETIN This document provides the information required to install and operate the

circuit monitor. The document consists of a table of contents, five chapters, and three appendices. Chapters longer than a few pages begin with a chapter table of contents. To locate information on a specific topic, refer to the table of contents at the beginning of the document, or the table of contents at the beginning of a specific chapter.

Notational Conventions This document uses the following notational conventions:

• Procedures. Each procedure begins with an italicized statement of the

task, followed by a numbered list of steps. Procedures require you to take action.

• Bullets. Bulleted lists, such as this one, provide information but not

procedural steps. They do not require you to take action.

• Cross-References. Cross-references to other sections in the document appear in boldface. Example: see Mounting the Circuit Monitor in Chapter 3.

Chapter 1—Introduction

Topics Not Covered Here Some of the circuit monitor’s advanced features, such as on-board data log

and event log files, must be set up over the communications link using POWERLOGIC application software. This circuit monitor instruction bulletin describes these advanced features, but does not tell how to set them up. For instructions on setting up these advanced features, refer to the appropriate application software instruction bulletin.

RELATED DOCUMENTS Several optional add-on modules are available for use with the circuit

monitor. Each module is shipped with an instruction bulletin detailing installation and use of the product. Available add-on modules for the circuit monitor are listed below.

Instruction Bulletin Title Reference No.

• POWERLOGIC Control Power Module (CPM-48) 3090IM9305

• POWERLOGIC Ride-Through Module 3090IM9701

• I/O Modules (IOM-11/44/18) 3020IM9304

• I/O Modules (IOM-4411/4444) 3020IM9401

• Voltage/Power Module 3090IM9302

• Optical Communications Interface (OCI-2000) 3090IM9303

• Ethernet Communications Module (ECM-2000/ECM-RM) 3020IB9818

➀

➀ Reference numbers listed are the original document numbers. If a document has been revised, the listed number will be followed by a

revision number, for example R10/97.

Bulletin No. 3020IB9814 December 1998

Reference Manual This Installation and Operation manual provides the information necessary

to install and operate the circuit monitor. Additional information on the circuit monitor’s advanced features is available in English only in the POWERLOGIC Circuit Monitor Reference Manual. The reference manual includes information on the following topics:

• Metering Capabilities

• Input/Output Capabilities

• Alarm Functions

• Logging

• Waveform Capture

• Disturbance Monitoring

• CM-2450 with Programming Language

• Advance Topics

• Communication Cable Pinouts

• Abbreviated Register Listing

• Calculating Log File Sizes

• Alarm Setup Information

• Reading and Writing Registers from the Front Panel

Chapter 2—Hardware Description

CHAPTER 2—HARDWARE DESCRIPTION

FRONT PANEL The circuit monitor front panel is designed for maximum ease of use. The

circuit monitor has five modes of operation:

• METERS — for viewing real-time metered data

• MIN — for viewing the minimum of the selected metered value

• MAX — for viewing the maximum of the selected metered value

• ALARM — for viewing the status of on-board alarms

• [Setup] — for setting up the circuit monitor

The general procedure for displaying data is simple:

1. Press the MODE button to select one of the five available modes.

2. Press the SELECT METER buttons to select a metered value.

3. Press the PHASE button to select a phase.

In [Setup] mode, use the alternate descriptions in grey to the right of the LEDs. In SETUP mode, the PHASE, MODE, and SELECT METER buttons function differently than in the other display modes. For details see Chapter 4—Front Panel Operation.

Figure 2-1 shows the front panel of the circuit monitor. A description of the front panel follows.

➀ 6-Digit LED display. For local display of metered values. ➁ Kilo/Mega LEDs. The Kilo LED lights when the displayed value is in

Kilo units. The Mega LED lights when the displayed value is in Mega units.

➂ Meter Indication LEDs. The lit LED indicates the value being displayed. ➃ Setup/Reset Parameters. These grey, bracketed values are used to set up

the circuit monitor and perform resets. Refer to these values when in [Setup] mode.

➄ Phase Indication LEDs. Indicate the phase for the displayed value.

Note: If you select a metered value that does not provide a reading for

the selected phase, the circuit monitor automatically jumps to a phase for which a reading exists. For example, assume that you are viewing Phase A Power Factor, then change to Frequency; the circuit monitor automatically jumps from Phase A to 3-Phase, since the circuit monitor does not provide a Phase A Frequency reading.

➅ PHASE Select Button. Press to select the phase for the selected meter

value. Note: In [Setup] mode, press this button to move from one setup parameter to the next. See Chapter 4—Front Panel Operation for details.

➆ SELECT METER buttons. Press to change the metered value being

displayed. Note: In [Setup] mode, press these buttons to change the value of

the displayed setup parameter. See Chapter 4—Front Panel Operation for details.

Bulletin No. 3020IB9814 December 1998

➇ Mode Indication LEDs. These LEDs indicate the present display mode.

The Alarm LED flashes when an alarm is active.

➈ MODE Select Button. Press to select the display mode. ➉ Optical Communications Port. This port allows the circuit monitor to

communicate to a portable computer using the optional optical communications interface (Class 3090 Type OCI-2000). The OCI-2000 mounts magnetically to the circuit monitor and provides a standard RS-232 interface. Anything that can be done over the RS-485 communications link—including circuit monitor setup—can also be done using the optical communications port.

➀

➂ ➃

➉

o AMMETER (A) o VOLTMETER, L-L (V) o VOLTMETER, L-N (V) o WATTMETER (W) o VARMETER (VAr) o VA METER (VA) o POWER FACTOR METER o FREQUENCY METER (Hz) o DEMAND AMMETER (A) o DEMAND POWER (W) o DEMAND POWER (VA) o WATTHOUR METER o VARHOUR METER o THD, CURRENT (%) o THD, VOLTAGE (%) o K-FACTOR

Optical Comm Port

CIRCUIT MONITOR

[CT Primary] [PT Primary] [Sys. Type] [Dmd. Int.] [WH/Pulse] [Address] [Baud Rate] [Nom. Freq.] [Reset] [Reset] [Reset] [Reset] [Reset] [Rst. Min/Max] [Set Password] [Accept]

3-PHASE A (A-B) B (B-C) C (C-A) N

SELECT

METER [Value]

METERS MIN MAX ALARM [Setup]

Kilo Mega

PHASE

MODE



➁

➅ ➄

➆ ➇

➈

Figure 2-1: Circuit monitor front panel

Chapter 2—Hardware Description

REAR CONNECTIONS Figure 2-2 shows the rear of the circuit monitor. Identified parts are as

follows:

➀ Auxiliary Current Inputs ➁ 3-Phase Current Inputs ➂ 3-Phase Voltage Inputs ➃ RS-485 Communications Terminals ➄ Input/Output Module Connector ➅ Control Power Terminals

Note: See Chapter 3—Installation for wiring instructions.

➃

➂

➁

➀

TYPE 1 ENCLOSURE

INDOOR USE ONLY

3 PHASE

VOLTAGE

INPUTS

120 VOLTS

NOMINAL

910111256781234

3 PHASE CURRENT

INPUTS 5 AMPS

NOMINAL

AUXILIARY

CURRENT INPUTS

5 AMPS

NOMINAL

20 21 22 23 24

IN+ IN- OUT+ OUT- SHLD

RS-485

DATA COMMUNICATIONS

CONTROL

POWER

(+)L G N(-)

➄

25 26 27

➅

Figure 2-2: Back of the circuit monitor

Chapter 3—Installation

CHAPTER 3—INSTALLATION

CHAPTER CONTENTS This chapter tells how to mount and wire the circuit monitor. Refer to the

table of contents below to locate a specific topic.

CE Compliance........................................................................................................14

Mounting the Circuit Monitor ............................................................................ 15

Wiring CTs, PTs, and Control Power................................................................. 17

Wiring Multiple Circuit Monitors to a Single Set of PTs/CPT .......... 25

Deriving Control Power from Phase PT Inputs.................................... 26

Grounding the Circuit Monitor .......................................................................... 27

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

Connecting to a System Display ............................................................. 29

Connecting to a Personal Computer ...................................................... 30

Connecting to a POWERLOGIC Ethernet Gateway .............................. 31

Connecting to a POWERLOGIC Network Interface Module ............. 32

Connecting to a SY/MAX Programmable Controller ....................... 33

Length of the Communications Link ..................................................... 34

Daisy-Chaining POWERLOGIC Devices .............................................. 35

Terminating the Communications Link ................................................ 36

Biasing the Communications Link ......................................................... 37

DANGER

HAZARD OF PERSONAL INJURY OR DEATH

Only qualified electrical workers should install and wire this equipment. Such work should be performed only after reading this complete set of instructions.

Failure to observe this precaution will result in death, serious injury or equipment damage.

Bulletin No. 3020IB9814 December 1998

CE COMPLIANCE To comply with CE Electromagnetic Compatibility requirements, the circuit

monitor must be installed in a metallic enclosure (switchgear, for example).

For CE compliance, Merlin Gerin Disconnect Breakers Type P25M #21104 or IEC 947 equivalent must be connected directly to the metering voltage and control power inputs (figure 3-1).

Note: The disconnect switch must be placed within reach of the circuit monitor and labeled “Disconnect Switch for Circuit Monitor.”

Disconnect Breaker

Metering Voltage Source

must

Note: The disconnect breaker here

If control power is derived from the metering voltage source, no additional disconnect device is necessary.

However, if control power is derived from a separate source, an

additional

between the control power terminals and the control power source.

(See inset box at right for detail of additional disconnect breaker.)

disconnect breaker

be installed

must

be installed here

Control Power

Source

Note: See figures 3-4 through 3-10 for possible connection types.

Figure 3-1: Example of disconnect breaker for CE compliance

L G N

Chapter 3—Installation

MOUNTING THE CIRCUIT The circuit monitor is a flush-mounted device that projects through the back MONITOR of a panel or breaker cell door. Table 3-1 lists typical mounting locations in

various power equipment designs.

Note: Series 2000 circuit monitors use the same cutout dimensions and hole patterns as the Series 100, 200 circuit monitors, but the required rear clearances have increased.

When choosing a mounting location, consider the following points:

• Allow for easy access to the rear of the circuit monitor.

• Allow extra space for all wires, shorting blocks, or other components.

• Consider the depth of the circuit monitor. Include extra depth for add–on

modules that you might add in the future. See Appendix A for circuit monitor dimensions.

• Be sure that ambient conditions fall within the acceptable range: operating

temperature –25°C to +70°C, relative humidity, 5–95% non-condensing.

For CE mounting requirements, see CE Compliance, page 14.

Note: Before preparing the cutout, refer to Appendix A and verify that the required clearances exist.

To mount the circuit monitor, complete the following steps:

1. Prepare the cutout and mounting holes. Refer to figure 3-2 for exact

dimensions.

2. Insert the circuit monitor through the cutout from the front of the panel

or breaker cell door. Guide the circuit monitor mounting studs through the holes in the panel.

3. Secure the circuit monitor to the panel using four #10-32 hex nuts

included in the circuit monitor hardware kit (63230-204-16). Figure 3-3 shows the circuit monitor mounted in an electrical panel.

Table 3-1

Typical Circuit Monitor Mounting Locations

Equipment Type Mounting Location

QED Switchboards, Model 6 MCCs Main Meter Location or Aux. Section POWER-ZONE III Switchgear Main Instrument Compartment Door HVL and VISI/VAC Switchgear 9-inch Front Panel or Instrument Door Metal-Clad and Substation CBs Standard Relaying Locations ISO-FLEX Medium Voltage MCCs Standard Relaying Locations

Bulletin No. 3020IB9814 December 1998

10.41

264

5.21

132

4.06

104

R Typical

8 Holes

0.28

8.11

206

0.09

Diameter

5.52

140

10.10

256

11.03

280

Inches

Millimeters

3.71

7.41

188

0.93

Figure 3-2: Panel preparation

Panel

Secure to panel using #10-32 hex nuts (4 required)

Figure 3-3: Circuit monitor mounted in electrical panel

Chapter 3—Installation

WIRING CTs, PTs, AND The circuit monitor supports a variety of 3-phase power system wiring CONTROL POWER connections, including 3-wire delta, and 4-wire wye. Table 3-2 lists the

supported system connections. Figures 3-4 through 3-9 show CT, PT, and control power wiring. Figure 3-10 on page 24 shows dc control power.

Notes:

• When wiring the circuit monitor, route wires outward to make room for add-on modules that you might install in the future.

• Wiring instructions are also included in CM hardware kit.

• For CE wiring requirements, see CE Compliance, page 14.

To wire the circuit monitor, complete the following steps:

1. Using a suitable crimping tool, crimp the blue spade connectors included with the circuit monitor onto the wires for the voltage, current, and control power inputs.

Connect the spade connectors to the circuit monitor terminals as shown in the appropriate wiring diagram. (Figures 3-4 through 3-10 show wiring connections.) Do not overtighten screws, but ensure that they are snug.

3. Ground the circuit monitor. See Grounding the Circuit Monitor in this chapter for instructions.

4. Install protective terminal strip covers. See Appendix C for instructions.

DANGER

HAZARD OF PERSONAL INJURY OR DEATH

Only qualified electrical workers should install and wire this equipment. Such work should be performed only after reading this complete set of instructions. Follow proper safety procedures regarding CT secondary wiring. Never open circuit the secondary of a CT.

Failure to observe this precaution will result in death, serious injury or equipment damage.

Table 3-2

Supported System Wiring Connections

System Type Sys ID➀# CTs Aux. CT # PTs PT Conn. Currents Voltages Figure #

3∅, 3-wire 30 2 None 2 Open Delta A, B➁, C A-B, B-C, C-A

Delta

3∅, 4-wire 40 3 None 3 Wye-Wye A, B, C, N

Wye, Ground A-B➁, B-C➁, C-A

3∅, 4-wire 41 3 Neut 3 Wye-Wye A, B, C, N, G

Wye, Ground A-B➁, B-C➁, C-A

3∅, 4-wire 40 2 None 3 Wye-Wye A, B, C, N

Wye, Ground

3∅, 4-wire 42 3 None 2 Open Wye A, B, C, N

Wye, Ground A-B➁, B-C➁, C-A

3∅, 4-wire 43 3 Neut 2 Open Wye A, B, C, N, G

Wye, Ground A-B➁, B-C➁, C-A

➀ The System ID is used during setup to specify the system type. ➁ Indicates a value that is calculated rather than measured directly. ➂ For 3-wire loads only.

➂

➁

A-N, B-N, C-N 3-5

A-N, B-N, C-N 3-6

A-N, B-N, C-N 3-7

A-B➁, B-C➁, C-A

A-N, B-N➁, C-N 3-8

A-N, B-N➁, C-N 3-9

➁

3-4

Bulletin No. 3020IB9814 December 1998

Line

AØ BØ

CØ

CTs (5 Amp Secondaries)

CT Shorting

Block

VDS

Fuses

OPEN DELTA PT CONNECTION (120 V L-L Secondaries)

Fuses

TYPE 1 ENCLOSURE

INDOOR USE ONLY

910111256781234

Note: Control power can be drawn from phase PT inputs. See

Deriving Control Power from Phase PT Inputs

For DC control power connections, see figure 3-10.

20 21 22 23 24

IN+ IN- OUT+ OUT- SHLD

DATA COMMUNICATIONS

3 PHASE VOLTAGE INPUTS 120 VOLTS NOMINAL

3 PHASE CURRENT INPUTS 5 AMPS NOMINAL

AUXILIARY CURRENT INPUTS 5 AMPS NOMINAL

RS-485

in this chapter.

CONTROL

POWER

14 VA

Load

Fuses

CPT (120 or 240 Vac Secondary, 14 VA)

Disconnect

Switch

Fuse

(+)L G N(-)

25 26 27

True Earth

Ground

Notes:

• Pay close attention to polarity marks (■) when connecting CTs and PTs.

• Installation Category II

Figure 3-4: 3-phase, 3-wire delta connection

Chapter 3—Installation

Line

AØ BØ CØ

CTs (5 Amp Secondaries)

Load

VDS

Note: Control power can be drawn from phase PT

Fuses

WYE PT CONNECTION (120 V L-N Secondaries)

TYPE 1 ENCLOSURE

INDOOR USE ONLY

3 PHASE

VOLTAGE

INPUTS

120 VOLTS

NOMINAL

910111256781234

inputs. See

Control Power from Phase PT Inputs

chapter. For dc control power connections, see figure 3-10.

20 21 22 23 24

IN+ IN- OUT+ OUT- SHLD

DATA COMMUNICATIONS

RS-485

Deriving

in this

Fuse

CPT (120 or 240 Vac Secondary, 14 VA)

Disconnect

Switch

CT Shorting

Block

3 PHASE CURRENT

INPUTS 5 AMPS NOMINAL

AUXILIARY CURRENT INPUTS 5 AMPS NOMINAL

CONTROL

POWER

14 VA

(+)L G N(-)

25 26 27

Notes:

• Pay close attention to polarity marks (■) when connecting CTs and PTs.

• Installation Category II

Figure 3-5: 3-phase, 4-wire wye, ground connection

True Earth

Ground

Bulletin No. 3020IB9814 December 1998

Line

AØ BØ CØ

CTs (5 Amp Secondaries)

Load

VDS

Note: Control power can

Fuses

CT Shorting

Block

WYE PT CONNECTION (120 V L-N Secondaries)

TYPE 1 ENCLOSURE

INDOOR USE ONLY

3 PHASE

VOLTAGE

INPUTS

120 VOLTS

NOMINAL

910111256781234

3 PHASE CURRENT

INPUTS 5 AMPS

NOMINAL

AUXILIARY

CURRENT INPUTS

5 AMPS

NOMINAL

be drawn from phase PT inputs. See

Control Power from Phase PT Inputs

chapter. For dc control power connections, see figure 3-10.

20 21 22 23 24

IN+ IN- OUT+ OUT- SHLD

DATA COMMUNICATIONS

RS-485

Deriving

CONTROL

POWER

14 VA

in this

(+)L G N(-)

Fuse

CPT (120 or 240 Vac Secondary, 14 VA)

Disconnect

Switch

Fuse

25 26 27

True Earth

Ground

Notes:

• Pay close attention to polarity marks (■) when connecting CTs and PTs.

• Installation Category II

Figure 3-6: 3-phase, 4-wire wye, ground connection, metered neutral

Chapter 3—Installation

Line

AØ BØ CØ

CTs (5 Amp Secondaries)

3-Wire

Load

VDS

Note: Control power can be drawn from phase PT

Fuses

WYE PT CONNECTION (120 V L-N Secondaries)

inputs. See

Control Power from Phase PT Inputs

chapter. For dc control power connections, see figure 3-10.

Deriving

in this

Fuse

CPT (120 or 240 Vac Secondary, 14 VA)

Fuses

CT Shorting

Block

TYPE 1 ENCLOSURE

INDOOR USE ONLY

1256781234

3 PHASE VOLTAGE INPUTS 120 VOLTS NOMINAL

3 PHASE CURRENT INPUTS 5 AMPS NOMINAL

AUXILIARY CURRENT INPUTS 5 AMPS NOMINAL

20 21 22 23 24

IN+ IN-

OUT- SHLD

OUT+

RS-485

DATA COMMUNICATIONS

CONTROL

POWER

14 VA

Fuse

(+)L G N(-)

25 26 27

Disconnect

Switch

True Earth

Ground

Notes:

• Pay close attention to polarity marks (■) when connecting CTs and PTs.

• Installation Category II

Figure 3-7: 3-phase, 4-wire wye, 3-wire load

Bulletin No. 3020IB9814 December 1998

Line

AØ BØ CØ

CTs (5 Amp Secondaries)

Load

VDS

Note: Control power can be drawn from phase PT inputs. See

Control Power from Phase PT Inputs

chapter. For dc control power connections, see figure 3-10.

20 21 22 23 24

IN+ IN- OUT+ OUT- SHLD

DATA COMMUNICATIONS

Deriving

in this

RS-485

Fuse

CPT (120 or 240 Vac Secondary, 14 VA)

Disconnect

Switch

Fuses

WYE PT CONNECTION (120 V L-N Secondaries)

TYPE 1 ENCLOSURE

INDOOR USE ONLY

3 PHASE

VOLTAGE

INPUTS

120 VOLTS

NOMINAL

910111256781234

CT Shorting

Block

3 PHASE CURRENT

INPUTS 5 AMPS NOMINAL

AUXILIARY CURRENT INPUTS 5 AMPS NOMINAL

CONTROL

POWER

14 VA

(+)L G N(-)

25 26 27

Notes:

• Pay close attention to polarity marks (■) when connecting CTs and PTs.

• Installation Category II

Figure 3-8: 2-1/2 element metering system type 42 (calculated neutral)

True Earth

Ground

Chapter 3—Installation

Line

AØ BØ CØ

CTs (5 Amp Secondaries)

Load

VDS

Fuses

CT Shorting

Block

WYE PT CONNECTION (120 V L-N Secondaries)

TYPE 1 ENCLOSURE

INDOOR USE ONLY

3 PHASE

VOLTAGE

INPUTS

120 VOLTS

NOMINAL

910111256781234

3 PHASE CURRENT

INPUTS 5 AMPS

NOMINAL

AUXILIARY

CURRENT INPUTS

5 AMPS

NOMINAL

Note: Control power can be drawn from phase PT inputs. See

Control Power from Phase PT Inputs

chapter. For dc control power connections, see figure 3-10.

20 21 22 23 24

IN+ IN- OUT+ OUT- SHLD

DATA COMMUNICATIONS

RS-485

Deriving

CONTROL

POWER

14 VA

in this

(+)L G N(-)

Fuse

CPT (120 or 240 Vac Secondary, 14 VA)

Disconnect

Switch

Fuse

25 26 27

True Earth

Ground

Notes:

• Pay close attention to polarity marks (■) when connecting CTs and PTs.

• Installation Category II

Figure 3-9: 2-1/2 element metering system type 43

Bulletin No. 3020IB9814 December 1998

TYPE 1 ENCLOSURE

INDOOR USE ONLY

1256781234

3 PHASE VOLTAGE INPUTS 120 VOLTS NOMINAL

3 PHASE CURRENT INPUTS 5 AMPS NOMINAL

AUXILIARY CURRENT INPUTS 5 AMPS NOMINAL

20 21 22 23 24

IN+ IN-

DATA COMMUNICATIONS

OUT+

RS-485

OUT- SHLD

CONTROL

POWER

(+)L G N(-)

25 26 27

(+)

dc Control Power

(–)

120/250 Vdc Nominal

Note: Installation Category II

Figure 3-10: DC control power connections

Chapter 3—Installation

Wiring Multiple Circuit Multiple circuit monitors can share one set of 3-phase PTs. Also, multiple Monitors to a Single Set circuit monitors can share a single control power transformer (CPT). In all of PTs/CPT cases, each circuit monitor must use a separate set of CTs. Figure 3-11 shows

how to connect multiple circuit monitors to a single set of PTs and CPT.

Note: When using this wiring method, ground the PT secondaries in only one location.

PTs

CPT

CTs

Figure 3-11: Circuit monitors connected to one set of PTs and one CPT

CTs CTs

CM CM

Bulletin No. 3020IB9814 December 1998

Deriving Control Power Whenever possible, derive circuit monitor control power from a stable from Phase PT Inputs voltage source. If such a source is unavailable, the circuit monitor can derive

control power from its phase PT inputs. Due to the wide range of permissible control power inputs, the circuit monitor can accept either L-N or L-L control power inputs up to 240 V nominal. Using the L-L control power option increases the circuit monitor ride-through time and enables more reliable operation during voltage disturbances.

Referring to figures 3-12 and 3-13, complete the following steps to derive control power from phase PT inputs:

1. Connect the Va terminal (terminal 12) to the L terminal (terminal 25).

2. For L-N control power, connect the Vn terminal (terminal 9) to the N terminal (terminal 27). For L-L control power, connect the Vc terminal (terminal 10) to the N terminal (terminal 27).

3. Install protective terminal strip covers. See Appendix C for instructions.

CAUTION

HAZARD OF EQUIPMENT DAMAGE

When deriving control power from the phase PT inputs, the phase PT used must have a VA rating sufficient for all connected burdens. If the VA rating is exceeded, it could reduce the voltage transformer’s accuracy or damage the PT.

Failure to observe this precaution can result in equipment damage.

Chapter 3—Installation

TYPE 1 ENCLOSURE

INDOOR USE ONLY

910111256781234

3 PHASE VOLTAGE INPUTS 120 VOLTS NOMINAL

3 PHASE CURRENT INPUTS 5 AMPS NOMINAL

AUXILIARY CURRENT INPUTS 5 AMPS NOMINAL

20 21 22 23 24

IN+ IN- OUT+ OUT- SHLD

RS-485

DATA COMMUNICATIONS

CONTROL

POWER

TYPE 1 ENCLOSURE

INDOOR USE ONLY

aVbVcVnIa+Ia-Ib+Ib-Ic+Ic-In+In-

3 PHASE VOLTAGE INPUTS 120 VOLTS NOMINAL

910111256781234

3 PHASE CURRENT

(+)L G N(-)

25 26 27

INPUTS 5 AMPS NOMINAL

AUXILIARY CURRENT INPUTS 5 AMPS NOMINAL

20 21 22 23 24

IN+ IN- OUT+ OUT- SHLD

RS-485

DATA COMMUNICATIONS

CONTROL

POWER

(+)L G N(-)

25 26 27

Figure 3-12: Deriving L-L control power from phase PT inputs Figure 3-13: Deriving L-N control power from phase PT inputs

GROUNDING THE For optimal grounding, connect the circuit monitor to a true earth ground. CIRCUIT MONITOR

To ground the circuit monitor, complete the following steps:

1. Connect the Ground terminal (terminal 26) to a true earth ground, using #14 AWG wire or larger with spade connector (see figure 3-14).

2. Install protective terminal strip cover. See Appendix C for instructions.

DANGER

HAZARD OF ELECTRIC SHOCK

Ground the circuit monitor as described in these instructions. Failure to properly ground the circuit monitor may allow hazardous voltages to be present on the circuit monitor chassis, and may result in equipment damage.

Failure to observe this precaution will result in death, serious injury or equipment damage.

Bulletin No. 3020IB9814 December 1998

3 PHASE CURRENT

56781234

INPUTS 5 AMPS NOMINAL

AUXILIARY CURRENT INPUTS 5 AMPS NOMINAL

CONTROL

POWER

(+)L G N(-)

25 26 27

#14 AWG Wire

(or Larger)

True Earth

Ground

Figure 3-14: Grounding the circuit monitor

COMMUNICATIONS WIRING POWERLOGIC devices are equipped with RS-485 communications. The

RS-485 standard lets you daisy-chain up to 32 POWERLOGIC-compatible devices to a single communications port. This document refers to a chain of POWERLOGIC devices connected by communications cable as a communications link.

A POWERLOGIC communications link can consist of up to 32 POWERLOGIC-compatible devices connected to a communications port on one of the following:

• POWERLOGIC System Display

• Personal computer

• POWERLOGIC Network Interface Module

• SY/MAX programmable controller

• Other host devices with a POWERLOGIC-compatible port

Figures 3-15 through 3-19 show circuit monitors and other POWERLOGIC compatible devices connected in typical systems. The accompanying text describes important considerations for each connection alternative.

The figures also show the placement of communications adapters and terminators. For additional information on using the communications adapter and terminator, see Terminating the Communications Link and Biasing the Communications Link in this chapter.

Chapter 3—Installation

Connecting to a System • Connect up to 32 circuit monitors to the system display for Circuit Display Monitors (Class 3050 Types SD-200, SD-220). See Length of the

Communications Link in this chapter for distance limitations at varying baud rates.

• Connect circuit monitors to the RS-485 port on the bottom of the system

display.

• Configure the system display’s baud rate to match the baud rate of circuit

monitors on the communications link.

• Refer to the instruction bulletin for the system display for circuit monitors

(Class 3050 Types SD-200, SD-220) for detailed instructions on configuring the system display.

System Display

To RS-485

communications port

BELDEN 8723 (or equivalent)

MCT-485

MCA-485

CAB-107

(see Appendix B

(See Appendix D for cable pinouts)

for cable pinouts)

1–32 Circuit Monitors

Figure 3-15: Circuit monitors connected to a system display for circuit monitors

Bulletin No. 3020IB9814 December 1998

Connecting to a • Connect up to 32 POWERLOGIC devices to a personal computer. See Personal Computer Length of the Communications Link in this chapter for distance

limitations at varying baud rates.

• POWERLOGIC devices can be connected to a SY/LINK card installed in the personal computer. To do this, connect the POWERLOGIC devices to the RS-422 port (female DB-9 connector) of the SY/LINK card.

• POWERLOGIC devices can be connected to a serial COMM port on the personal computer. To do this, the POWERLOGIC devices must be connected to an RS-232 to RS-422/RS-485 converter which is connected to the personal computer. POWERLOGIC offers a converter kit for this purpose (Class 3090 Type MCI-101). Refer to the instruction bulletin included with the MCI-101 for connection instructions.

Connected to RS-422 port of SY/LINK

Connected to RS-422 port of SY/LINK card

card or RS-422 PC serial port

BELDEN 8723 (or equivalent)

MCT-485

MCA-485

1–32 Devices (Circuit Monitors and other POWERLOGIC-compatible devices)

Figure 3-16: POWERLOGIC devices connected directly to a personal computer

CAB-107

(see Appendix B

(See Appendix D

for cable pinouts)

Chapter 3—Installation

Connecting to a POWERLOGIC

• There are two models of the POWERLOGIC Ethernet Gateway: a single

Ethernet Gateway (EGW) port version (EGW1) and a dual port version (EGW2).

• The serial port on the EGW1 can support up to 8 POWERLOGIC devices.

• Each serial port on the EGW2 can support up to 32 POWERLOGIC devices on a daisy-chain, or up to 64 devices when a signal repeater is used.

• Connection to the Ethernet can be made via a UTP or AUI port.

POWERLOGIC Network Server

with Client

POWERLOGIC Ethernet Gateway (dual port version)

UNIT STATUS

Ethernet

Belden 8723

(or equivalent)

MCT-485

Transmit Receive Collision UTP Link

UTP Parity

RS-232

UTP

RS-485

PORT 1 PORT 2

(AMBER•OK)

AUI

MCT-485

1–32 Devices (Circuit Monitors and Other

POWERLOGIC-Compatible Devices)

Figure 3-17: POWERLOGIC devices connected to an Ethernet gateway

1–32 Devices (Circuit Monitors and Other

POWERLOGIC-Compatible Devices)

Bulletin No. 3020IB9814 December 1998

Connecting to a POWERLOGIC • Connect up to 32 POWERLOGIC devices to a PNIM. See Length of the Network Interface Module Communications Link in this chapter for distance limitations at different (PNIM) baud rates.

• Connect POWERLOGIC devices to PNIM port 0 (top RS-485 port) only.

• Configure PNIM port 0 for “POWERLOGIC” mode. (See side of PNIM for instructions on setting dip switches.

• Configure the baud rate of PNIM port 0 to match the baud rate of the POWERLOGIC devices on the communications link.

• Refer to the PNIM instruction bulletin for detailed instructions on configuring the PNIM.

System Display

BELDEN 8723 (or equivalent)

MCT-485

1–32 Devices (Circuit Monitors and other

Figure 3-18: POWERLOGIC devices connected to a PNIM

POWERLOGIC

-compatible devices)

Connect Circuit Monitors

to top port (port 0) of

PNIM only.

MCA-485

CAB-107

(See Appendix D

(see Appendix B

for cable pinouts)

PNIM

Remote PC

Chapter 3—Installation

Connecting to a SY/MAX • Connect up to 32 POWERLOGIC devices to a programmable Programmable Controller

controller. See Length of the Communications Link in this chapter for distance limitations at different baud rates.

• Connect POWERLOGIC devices to the RS-422 port of the programmable controller.

• The programmable controller must contain a program to access POWERLOGIC device data.

• Configure the baud rate of the programmable controller’s port to match the baud rate of the POWERLOGIC devices on the communications link.

• Refer to the programmable controller instruction manual for detailed instructions on configuring the programmable controller.

Note: POWERLOGIC devices can be connected to other manufacturer’s systems using available communication interfaces. For further information, contact the POWERLOGIC Technical Support Center. See Getting Technical

Support in Chapter 5.

Programmable

Controller

Connect Circuit Monitors

to RS-422 port of

programmable controller.

BELDEN 8723 (or equivalent)

MCT-485

1–32 Devices (Circuit Monitors and other

POWERLOGIC

-compatible devices)

(See Appendix D for cable pinouts)

MCA-485

CAB-107

(see Appendix B

for cable pinouts)

Figure 3-19: POWERLOGIC devices connected to a SY/MAX programmable controller

Bulletin No. 3020IB9814 December 1998

Length of the The length of the communications link cannot exceed 10,000 feet (3,050 m). Communications Link This means that the total length of the communications cable from the

PNIM, personal computer, system display, or processor, to the last device in the daisy-chain, cannot exceed 10,000 feet. When 17 or more devices are on a communications link, the maximum distance may be shorter, depending on the baud rate. Table 3-3 shows the maximum distances at different baud rates.

Table 3-3

Maximum Distances of Comms Link at Different Baud Rates

Maximum Distances

Baud Rate 1–16 devices 17–32 devices

1200 10,000 ft (3,050 m) 10,000 ft (3,050 m) 2400 10,000 ft (3,050 m) 5,000 ft (1,525 m) 4800 10,000 ft (3,050 m) 5,000 ft (1,525 m) 9600 10,000 ft (3,050 m) 4,000 ft (1,220 m)

19200 10,000 ft (3,050 m) 2,500 ft (762.5 m)

Chapter 3—Installation

Daisy-Chaining POWERLOGIC Devices

Note: To daisy-chain POWERLOGIC devices, use communications cable containing two twisted-shielded pairs (Belden 8723 or equivalent). Connect the wires to the circuit monitor’s terminals using the red spade connectors included with the circuit monitor. Using a suitable crimping tool, crimp the red connectors onto the communications wires.

Each communicating POWERLOGIC device has five RS-485 terminals for connection to a POWERLOGIC communications link. On all devices, the terminals are labeled IN+, IN-, OUT+, OUT-, and SHLD. On the circuit monitor, the IN+, IN-, OUT+, OUT-, and SHLD terminals are numbered 20, 21, 22, 23, and 24, respectively.

To daisy-chain the circuit monitor to another POWERLOGIC device, wire the circuit monitor’s RS-485 communications terminals to the matching communications terminals of the next device. In other words, wire the IN+ terminal of the circuit monitor to the IN+ terminal of the next device, wire IN- to IN-, OUT+ to OUT+, OUT- to OUT-, and SHLD to SHLD. See Figure 3-20.

If the circuit monitor is the last device on the daisy-chain, terminate it. See Terminating the Communications Link in this chapter for instructions. If the circuit monitor is the first device on the daisy-chain, connect it to the PNIM, personal computer, system display, or programmable controller using a CAB-107 or equivalent cable and a Multipoint Communications Adapter. See Biasing the Communications Link in this chapter for instructions. See Communication Cable Pinouts in the Circuit Monitor Reference Manual for the CAB-107 pinout.

or other POWERLOGIC-

Green*

White

To RS-485

Terminals of

next device

* Standard conductor color convention

Red

Black

Circuit Monitor

compatible Device

IN+

IN-

OUT+

OUT-

SHLD

Circuit Monitor

or other POWERLOGIC-

compatible Device

IN+

IN-

OUT+

OUT-

SHLD

Belden 8723

(or equivalent)

Circuit Monitor

or other POWERLOGIC-

compatible Device

IN+

IN-

OUT+

OUT-

SHLD

Figure 3-20: Daisy-chaining the RS-485 communications terminals

To RS-485

Terminals of

next device

Bulletin No. 3020IB9814 December 1998

Terminating the To ensure reliable communications, terminate the last device on a Communications Link POWERLOGIC communications link. To terminate the last device, use a

POWERLOGIC Multipoint Communications Terminator (Class 3090 Type MCT-485).

To terminate a circuit monitor, slide the terminator’s four spade connectors under the IN+, IN-, OUT+, and OUT- terminals on the back of the circuit monitor and tighten. Figure 3-20 shows proper placement of the terminator. Figures 3-15 to 3-19 show the terminator applied in typical systems.

Notes:

• Terminate only the last device on the link. If a link has only one device, terminate that device.

• Some POWERLOGIC devices use a removable communications connector. If the last device on the communications link is not a circuit monitor, refer to the instruction bulletin for that device for termination instructions.

TYPE 1 ENCLOSURE

INDOOR USE ONLY

9101112

3 PHASE VOLTAGE INPUTS 120 VOLTS NOMINAL

20 21 22 23 24

IN+ IN- OUT+ OUT- SHLD

RS-485

DATA COMMUNICATIONS

Figure 3-21: Terminator placement when last device on the link is a circuit monitor

Chapter 3—Installation

Biasing the To ensure reliable communications, bias the communications Communications Link link. To bias the communications link, use a POWERLOGIC Multipoint

Communications Adapter (Class 3090 Type MCA-485).

To bias the communications link, plug the adapter into the communications port of the device to which one or more POWERLOGIC devices are connected. Plug the CAB-107 cable connected to the first POWERLOGIC device on the link into the other end of the adapter.

Figure 3-22 shows the adapter connected to a POWERLOGIC Network Interface Module (PNIM). Figures 3-15, 3-16, 3-18, and 3-19 show the adapter applied in typical systems.

MCA-485

Communications

Adapter

CAB-107 Cable to first device in

daisy-chain

Figure 3-22: Multipoint Communications Adapter connected to PNIM

2 1

Chapter 4—Front Panel Operation

CHAPTER 4—FRONT PANEL OPERATION

CHAPTER CONTENTS This chapter tells how to set up the circuit monitor from the front panel only.

Some advanced circuit monitor features, such as event log/data log configuration, must be set up over the communications link. You can set up these advanced features using POWERLOGIC software. Refer to the software instruction bulletin for instructions on setting up advanced features.

The Setup Mode ...................................................................................................... 40

The Configuration Option............................................................................. 40

The Resets Option........................................................................................... 40

The Alarm/Relay Option .............................................................................. 40

The Diagnostics Option ................................................................................. 40

Choosing a Setup Option ................................................................................41

How the Buttons Work .................................................................................... 41

Configuring the Circuit Monitor .......................................................................... 42

Factory Defaults.............................................................................................. 42

General Configuration Procedure................................................................ 42

Viewing Configuration Data in Protected Mode ....................................... 45

Setting the Master Password ........................................................................ 46

Setting the CT Ratios...................................................................................... 47

Setting the PT Ratio ........................................................................................ 48

Setting the System Type ................................................................................ 48

Setting the Demand Interval ......................................................................... 49

Setting the Watthour/Pulse Output ............................................................ 51

Setting the Device Address ........................................................................... 52

Setting the Baud Rate ..................................................................................... 53

Setting the Nominal Frequency.................................................................... 54

Resetting Demand, Energy, and Min./Max. Values ................................. 55

Performing Resets Using The Resets Option ...................................................... 56

Setting Up Alarm/Relay Functions ..................................................................58

General Setup Procedure ...............................................................................59

Detailed Setup Procedure .............................................................................60

Viewing Active Alarms........................................................................................63

Viewing the Priority 1 Log..................................................................................64

Clearing the Priority 1 Log .................................................................................65

Bulletin No. 3020IB9814 December 1998

THE SETUP MODE To access the Setup Mode, press the MODE button until the red LED next to

[Setup] is lit. The circuit monitor displays “Config”—the first of four setup options. The circuit monitor displays the options as abbreviated combinations of uppercase and lowercase letters. The abbreviations displayed by the circuit monitor, and their full names are shown below.

Full Name CM Display

Configuration Option ConFig Resets Option rESETs Alarm/Relay Option AL.rLy Diagnostics Option diAG

The Configuration Option The Configuration option lets you configure the following values: CT and PT

primaries, system type, demand interval, WH/pulse output, device address, baud rate, nominal frequency, and password. You can also reset energy, demand, and min/max values. See Configuring the Circuit Monitor, page 42, for more information.

The Resets Option The Resets option lets you reset energy, demand and min/max values. These

same reset operations can be done using the Configuration option. The difference is that using the Resets option, you cannot change circuit monitor configuration values. See Performing Resets Using the Resets Option in this chapter for more information.

The Alarm/Relay Option The Alarm/Relay option lets you configure the circuit monitor’s on-board

alarm/relay functions. (See Alarm Setup Information in the Circuit Monitor Reference Manual for a complete listing of the circuit monitor’s predefined alarm conditions.) For each of the circuit monitor’s predefined alarm conditions, you can:

• Enable or disable it

• Assign a priority to it

• Define any required pickup and dropout setpoints, and pickup and dropout time delays

• Setup the circuit monitor to operate up to three relay outputs when the alarm condition occurs

See Setting Up Alarm/Relay Functions in the Circuit Monitor Reference Manual for details on how to use this option.

The Diagnostics Option The Diagnostics option lets you read and write circuit monitor registers. Use

this feature with caution. Writing an incorrect value, could cause the circuit monitor to operate incorrectly. See Reading and Writing Registers from the Front Panel in the Circuit Monitor Reference Manual for instructions on reading and writing registers using the Diagnostics option.

Chapter 4—Front Panel Operation

Choosing a Setup Option To enter the [Setup] mode, press the MODE button until the [Setup] LED is

lit. The circuit monitor displays “ConFig.” To move to a specific option, use the SELECT METER [Value] buttons. To select an option, press the PHASE [Enter] button (see figure 4-1).

Setup Mode

Config rESETS AL.rLY diAg

Use the SELECT METER [Value] buttons to move to the desired option (Config, rESETS, AL.rLY, or diAg).

Press the PHASE

PHASE

[Enter] button to select an option.

Figure 4-1: Choosing a Setup option

How the Buttons Work The circuit monitor’s front panel buttons perform different functions in

Setup mode than in Meters mode. In Setup mode, the buttons work as described below.

The PHASE [Enter] button. In Setup mode, use this button as an “Enter” key to accept a new configuration value and move to the next configuration item.

PHASE

For example, after changing the CT Primary value, press this button to enter the new value and move to the next configuration item (PT Primary). Also, press this button to move through configuration items that don’t need to be changed, to reach a specific item.

SELECT METER [Value] buttons. In Setup mode, use these buttons to increase or decrease the displayed value. Also, use these buttons to toggle between Yes and No when required.

MODE

MODE button. Use this button to exit a setup option after making all desired changes. For example, after making all desired changes within the Configuration option, press the mode key. The circuit monitor then asks you to accept or reject your changes.

Bulletin No. 3020IB9814 December 1998

CONFIGURING THE This section tells how to use the Configuration option to define the following CIRCUIT MONITOR values: CT and PT ratios, system type, demand interval, WH/pulse output,

device address, baud rate, nominal frequency, and password. It also tells how to reset energy, demand and min/max values.

The section General Configuration Procedure describes the general steps required to configure the circuit monitor. The remaining sections tell how to configure specific values.

Factory Defaults Table 4-1 lists the front panel configuration parameters, their allowed values,

and their factory defaults.

Table 4-1

Factory Defaults for Front Panel Configuration Parameters

Parameter Allowed Values Default

CT Primary Primary, 3-Phase 1 to 32,767 5 Primary, Neutral 1 to 32,767 5 PT Primary Primary, 3-Phase 1 to 1,700,000 120 System Type 30, 40, 41 40 Demand Interval 5 to 60 min. 15 WH/Pulse output 0 to 3276.7 kWH 0 Device Address 0 to 199 1 Baud Rate 1,200–19,200 9,600 Frequency (Nom.) 50, 60, 400 60 Password 0 to 9998 0

General Configuration This section describes the general steps required to configure the circuit Procedure monitor from the front panel. The configuration items (and reset items) are

the grey items in square brackets on the front panel of the circuit monitor. Refer to these items when configuring the circuit monitor.

The front panel configuration procedure is described below. Alternately, figure 4-2 on page 44 shows the configuration procedure, with less detail, as a flow chart.

To configure the circuit monitor, complete the following steps:

1. Press the MODE button until the red LED next to [Setup] is lit.

The circuit monitor displays “ConFig”.

2. Press the PHASE [Enter] button to select the Configuration option.

The circuit monitor displays the password prompt “P - - - -.”

Chapter 4—Front Panel Operation

3. Enter the password. To enter the password, use the SELECT METER [Value] buttons to

increase or decrease the displayed value until it reaches the password value. Then press the PHASE [Enter] button. (The circuit monitor’s default password is 0.)

The red LED next to [CT Primary] flashes.

4. Press the PHASE [Enter] button to select a configuration item. The red LED next to the selected configuration item flashes.

5. Press the SELECT METER [Value] buttons to increase or decrease the displayed value until the desired value is displayed.

In the case of the [Reset] items, use the SELECT METER [Value] buttons to toggle between Yes and No. See Resetting Demand, Energy, and Min/Max Values in this chapter for more on resets.

6. Repeat steps 4 and 5 until you’ve made all desired configuration changes.

7. After making all desired configuration changes, press the MODE button once.

The red LED next to [Accept] flashes. The circuit monitor display reads No, and the red LEDs next to the items that you have changed are lit. Verify that only the LEDs next to the setup items you wish to change are lit.

8. To reject the changes, press the PHASE [Enter] button once. The circuit monitor returns to Meters mode.

9. To accept the changes, press the SELECT METER [Value] button to change from No to Yes. Then, press the PHASE [Enter] button.

The circuit monitor goes through its restart procedure. This indicates that the changes have been made.

Bulletin No. 3020IB9814 December 1998

START

Press the MODE

key until the

[Setup] LED is lit.

Press the PHASE

[Enter] key to enter

Configuration mode.

Use the SELECT

METER keys to

display the

password. Then

press the PHASE

[Enter] key.

The CM enters

Configuration mode.

Press the PHASE

[Enter] key to

move to the value

to be changed.

Use the SELECT

METER keys to

change the value.

Do you want

to change

another

value?

Press the

MODE key

once.

Do you want to accept the

changes?

YES

Press SELECT

METER key.

YES

Press the PHASE

[Enter] key.

The CM leaves

Configuration mode.

Figure 4-2: Flowchart for front panel configuration

Press the PHASE

[Enter] key.

CM accepts changes

and restarts.

Chapter 4—Front Panel Operation

Viewing Configuration Data The circuit monitor provides a special protected viewing mode that lets you In Protected Mode view, but not change, configuration data.

To view configuration data, complete the following steps:

1. Press the MODE button until the red LED next to [Setup] is lit. The circuit monitor displays “ConFig”.

2. Press the PHASE [Enter] button. The circuit monitor displays the password prompt “P - - - -.”

3. Enter 9999 for the password. To enter 9999, use the SELECT METER [Value] buttons to decrease the

displayed value until it reaches 9999. Then press the PHASE [Enter] button.

The circuit monitor enters the protected viewing mode and scrolls through the following device information:

• d=2350 (the number after “d=” represents the device model number)

• s=0345 (the numbers following “s=” represent the last four digits of

the device serial number)

• r=1516 (the first two digits after “r=” represent the reset code

revision and the last two digits represent the circuit monitor firmware revision level

• 1=001 (the digits following “1=” represent the circuit monitor

firmware sub-revision level, as in firmware version 17.002)

After this scrolling sequence, the display shows the present CT ratio.

4. Press the PHASE [Enter] button to move from one configuration item to the next.

5. To exit the protected viewing mode, press the MODE button. The circuit monitor returns to METERS mode.

Bulletin No. 3020IB9814 December 1998

Setting the Master The circuit monitor’s four setup modes are password protected. A master Password password can be used to access any of the four setup modes. In addition to the

master password, the circuit monitor provides a reset password. The reset password provides access to the Resets option only. Until you define a unique reset password, the reset password defaults to the master password. For instructions on defining and using the reset password see Performing Resets Using the Resets Option in this chapter.

The master password can be any value in the range 0 to 9998. The factory default is 0.

To change the master password, complete the following steps:

1. Press the MODE button until the red LED next to [Setup] is lit. The circuit monitor displays “ConFig.”

2. Press the PHASE [Enter] button to select the Configuration option. The circuit monitor displays the password prompt “P - - - -.”

3. Enter the existing master password. To enter the password, use the SELECT METER [Value] buttons to

increase or decrease the displayed value until it reaches the password value. Then press the PHASE [Enter] button. (The circuit monitor’s default password is 0.)

4. Press the PHASE [Enter] button until the red LED next to [Set Password] flashes.

5. Press the SELECT METER [Value] buttons until the desired password value is displayed.

The password can be any value from 0 to 9998.

6. Press the MODE button once. The red LED next to [Accept] flashes. The red LED next to [Set

Password] glows steadily.

7. To reject the new password, press the PHASE [Enter] button once. The circuit monitor returns to METERS mode.

8. To accept the new password, press the up arrow SELECT METER [Value] button to change from No to Yes. Then, press the PHASE [Enter] button.

The circuit monitor returns to METERS mode.

Chapter 4—Front Panel Operation

Setting the CT Ratios The circuit monitor supports two primary CT ratings: one for the phase CTs

and one for the neutral CT. The allowable range is 1 to 32,767. The factory default for both CT secondaries is 5.

Note: The neutral CT is optional. If the circuit monitor is set up for any system type that does not require a neutral CT, the circuit monitor ignores the neutral CT rating (even if neutral currents are reported).

To change the primary CT ratings, complete the following steps:

1. Press the MODE button until the red LED next to [Setup] is lit. The circuit monitor displays “ConFig”.

2. Press the PHASE [Enter] button to select the Configuration option. The circuit monitor displays the password prompt “P - - - -.”

3. Enter the master password. To enter the password, use the SELECT METER [Value] buttons to

increase or decrease the displayed value until it reaches the password value. Then press the PHASE [Enter] button.

The red LED next to [CT Primary] flashes indicating that the circuit monitor is in Configuration mode. The 3-PHASE LED also lights indicating that the circuit monitor is displaying the 3-phase, primary CT rating.

4. Press the SELECT METER [Value] buttons until the desired 3-phase, primary CT rating is displayed.

5. Press the PHASE [Enter] button once. The N (Neutral) phase LED lights, and the circuit monitor displays the

primary CT rating for the neutral CT.

6. Press the SELECT METER [Value] buttons until the desired neutral primary CT rating is displayed.

7. Press the MODE button once. The red LED next to [Accept] flashes. The red LED next to [CT Primary]

glows steadily.

8. To reject the new CT rating(s), press the PHASE [Enter] button once. The circuit monitor returns to METERS mode.

9. To accept the new CT rating(s), press the UP ARROW SELECT METER [Value] button to change from No to Yes. Then, press the PHASE [Enter] button.

The circuit monitor restarts.

Bulletin No. 3020IB9814 December 1998

Setting the PT Ratio The circuit monitor supports one primary PT rating. The allowable range is 1

to 1,700,000 volts. The factory default PT secondary is 120 V.

To change the primary PT rating, complete the following steps:

1. Press the MODE button until the red LED next to [Setup] is lit. The circuit monitor displays “ConFig”.

2. Press the PHASE [Enter] button to select the Configuration option. The circuit monitor displays the password prompt “P - - - -.”

3. Enter the master password. To enter the password, use the SELECT METER [Value] buttons to

increase or decrease the displayed value until it reaches the password value. Then press the PHASE [Enter] button.

3. Press the PHASE [Enter] button twice. The red LED next to the [PT Primary] item flashes. The 3-PHASE LED

lights, and the circuit monitor displays the primary PT rating for the 3-Phase PTs.

4. Press the SELECT METER [Value] buttons until the desired primary PT rating is displayed.

5. Press the MODE button once. The red LED next to [Accept] flashes. The red LED next to [PT Primary]

glows steadily.

6. To reject the new PT rating, press the PHASE [Enter] button once. The circuit monitor returns to METERS mode.

7. To accept the new PT rating, press the up arrow SELECT METER [Value] button to change from No to Yes. Then, press the PHASE [Enter] button.

Setting the System Type For the circuit monitor to meter correctly, you must specify the system

connection type. The circuit monitor supports three system wiring connections. Table 4-2 shows the system connection types. The factory default is 40.

Table 4-2

Supported System Type System Code Selections

System Type # Phase CTs Aux CT # PTs PT Conn. System Code

3∅, 3-wire 2 None 2 Open Delta 30

Delta

3∅, 4-wire 3 None 3 Wye-Wye 40

Wye, Grounded

3∅, 4-wire 3 1 (Neut) 3 Wye-Wye 41

Wye, Grounded

3∅, 4-wire 3 None 2 Open Wye 42

Wye, Grounded

3∅, 4-wire 3 1 (Neut) 2 Open Wye 43

Wye, Grounded

Chapter 4—Front Panel Operation

To change the system type, complete the following steps:

1. Press the MODE button until the red LED next to [Setup] is lit. The circuit monitor displays “ConFig.”

2. Press the PHASE [Enter] button to select the Configuration option. The circuit monitor displays the password prompt “P - - - -.”

3. Enter the password. To enter the password, use the SELECT METER [Value] buttons to

increase or decrease the displayed value until it reaches the password value. Then press the PHASE [Enter] button.

4. Press the PHASE [Enter] button until the red LED next to [Sys. Type] flashes.

5. Press the SELECT METER [Value] buttons until the system code matching your system type is displayed.

Refer to table 4-2 to determine the system code for your system type.

6. Press the MODE button once. The red LED next to [Accept] flashes. The red LED next to [Sys. Type]

glows steadily.

7. To reject the new system type, press the PHASE [Enter] button once. The circuit monitor returns to METERS mode.

8. To accept the new system type, press the SELECT METER [Value] button to change from No to Yes. Then, press the PHASE [Enter] button.

The circuit monitor restarts.

Setting the Demand The circuit monitor supports several methods to calculate average demand Interval real power. The default method is the thermal demand method. For a

description of available demand calculation methods, see Demand Readings in the Circuit Monitor Reference Manual.

One optional method is the demand synch pulse input method. In this method, the circuit monitor accepts an external synch pulse from another demand meter. The circuit monitor then uses the same time interval as the other meter for each demand calculation. For a more detailed description of the demand synch pulse input method, see Demand Synch Pulse Input in the Circuit Monitor Reference Manual.

Note: The circuit monitor must be equipped with an input/output module to use the Demand Synch Pulse Input feature.

The thermal demand (default) method and the demand synch pulse input method can be set up from the circuit monitor front panel. Other methods must be set up over the communications link, or using the front panel diagnostics feature (see Reading and Writing Registers from the Front Panel in the Circuit Monitor Reference Manual for instructions on using this feature).

Bulletin No. 3020IB9814 December 1998

Setting the Demand To set up the circuit monitor for the default thermal demand method, Interval (cont.) complete the procedure below—entering a demand interval from 5 to 60

minutes (the factory default is 15). To set up the circuit monitor for the demand synch pulse input method, follow the procedure below and set the demand interval to 0 minutes.

To change the demand interval, complete the following steps:

1. Press the MODE button until the red LED next to [Setup] is lit. The circuit monitor displays “ConFig.”

2. Press the PHASE [Enter] button to select the Configuration option. The circuit monitor displays the password prompt “P - - - -.”

3. Enter the password. To enter the password, use the SELECT METER [Value] buttons to

increase or decrease the displayed value until it reaches the password value. Then press the PHASE [Enter] button.

4. Press the PHASE [Enter] button until the red LED next to [Dmd. Int.] flashes.

5. Press the SELECT METER [Value] buttons until the desired demand interval is displayed.

Select 0 for the demand synch pulse input method.

6. Press the MODE button once. The red LED next to [Accept] flashes. The red LED next to [Dmd. Int.]

glows steadily.

7. To reject the new demand interval, press the PHASE [Enter] button. The circuit monitor returns to METERS mode.

8. To accept the new demand interval, press the SELECT METER [Value] button to change from No to Yes. Then, press the PHASE [Enter] button.

The circuit monitor restarts.

Chapter 4—Front Panel Operation

Setting the Watthour/ The allowable range for the watthours-per-pulse output is 0 to 3,276.7 kWH. Pulse Output The watthours per pulse can be set in one-tenth kWH increments, generating

a pulse as often as every 0.1 kWH (not to exceed 10 pulses per second), or as seldom as every 3276.0 kWH. Setting the watthours per pulse to 0 disables the pulse. The factory default is 0.

Note: The circuit monitor must be equipped with an input/output module to use this feature. For a more detailed description of the watthour pulse output feature, see Solid-State KYZ Pulse Output in the Circuit Monitor Reference Manual.

To change the Watthour/Pulse output, complete the following steps:

1. Press the MODE button until the red LED next to [Setup] is lit. The circuit monitor displays “ConFig.”

2. Press the PHASE [Enter] button to select the Configuration option. The circuit monitor displays the password prompt “P - - - -.”

3. Enter the password. To enter the password, use the SELECT METER [Value] buttons to

increase or decrease the displayed value until it reaches the password value. Then press the PHASE [Enter] button.

4. Press the PHASE [Enter] button until the red LED next to [WH/Pulse] flashes.

5. Press the SELECT METER [Value] buttons until the desired kilowatthours per pulse value is displayed.

6. Press the MODE button once. The red LED next to [Accept] flashes. The red LED next to [WH/Pulse]

glows steadily.

7. To reject the new pulse interval, press the PHASE [Enter] button once. The circuit monitor returns to METERS mode.

8. To accept the new pulse interval, press the SELECT METER [Value] button to change from No to Yes. Then, press the PHASE [Enter] button.

The circuit monitor restarts.

Bulletin No. 3020IB9814 December 1998

Setting the Device Each POWERLOGIC device on a communications link must have a Address unique device address. (The term communications link refers to 1-32

POWERLOGIC compatible devices daisy-chained to a single communications port.) The allowable range of addresses is 1 to 198. The factory default address is 1. (The circuit monitor will actually accept address 199, but address 199 is a special reserved address and we recommend that you not use it.)

Note: By networking groups of devices, POWERLOGIC systems can support a virtually unlimited number of devices.

When addressing POWERLOGIC devices, remember the following points:

• Each device on a single communications link—including the PNIM or SY/LINK card—must be assigned a unique address.

• Normally, the last device on a communications link—the device farthest from the communications port—should be assigned device address 1.

• If a communications link has only a single device, assign it address 1.

• If you add devices to the communications link, the last device should retain the address 1.

To change the device address, complete the following steps:

1. Press the MODE button until the red LED next to [Setup] is lit.

The circuit monitor displays “ConFig.”

2. Press the PHASE [Enter] button to select the Configuration option.

The circuit monitor displays the password prompt “P - - - -.”

3. Enter the password.

To enter the password, use the SELECT METER [Value] buttons to increase or decrease the displayed value until it reaches the password value. Then press the PHASE [Enter] button.

4. Press the PHASE [Enter] button until the red LED next to

[Address] flashes.

5. Press the SELECT METER [Value] buttons until the desired address is

displayed.

6. Press the MODE button once.

The red LED next to [Accept] flashes. The red LED next to [Address] glows steadily.

7. To reject the new address, press the PHASE [Enter] button once.

The circuit monitor returns to METERS mode.

8. To accept the new address, press the SELECT METER [Value] button to

change from No to Yes. Then, press the PHASE [Enter] button. The circuit monitor restarts.

Chapter 4—Front Panel Operation

Setting the Baud Rate Set the circuit monitor’s baud rate to match the baud rate of all other devices

on the communications link. The available baud rates are 1200, 2400, 4800, 9600, and 19200. The factory default is 9600 bps.

The maximum baud rate may be limited by the number of devices and total length of the communications link. Table 4-3 shows distance restrictions at varying baud rates.

To change the baud rate, complete the following steps:

1. Press the MODE button until the red LED next to [Setup] is lit. The circuit monitor displays “ConFig.”

2. Press the PHASE [Enter] button to select the Configuration option. The circuit monitor displays the password prompt “P - - - -.”

3. Enter the password. To enter the password, use the SELECT METER [Value] buttons to

increase or decrease the displayed value until it reaches the password value. Then press the PHASE [Enter] button.

4. Press the PHASE [Enter] button until the red LED next to [Baud Rate] flashes.

5. Press the SELECT METER [Value] buttons until the desired baud rate is displayed.

6. Press the MODE button once. The red LED next to [Accept] flashes. The red LED next to [Baud Rate]

glows steadily.

7. To reject the new baud rate, press the PHASE [Enter] button once. The circuit monitor returns to METERS mode.

8. To accept the new baud rate, press the SELECT METER [Value] button once to change from No to Yes. Then, press the PHASE [Enter] button.

The circuit monitor restarts.

Table 4-3

Maximum Distances of Comms Link at Varying Baud Rates

Maximum Distances

Baud Rate (bps) 1–16 devices 17–32 devices

1200 10,000 ft (3,050 m) 10,000 ft (3,050 m) 2400 10,000 ft (3,050 m) 5,000 ft (1,525 m) 4800 10,000 ft (3,050 m) 5,000 ft (1,525 m) 9600 10,000 ft (3,050 m) 4,000 ft (1,220 m)

19200 10,000 ft (3,050 m) 2,500 ft (762.5 m)

Bulletin No. 3020IB9814 December 1998

Setting the Nominal The circuit monitor supports three nominal frequencies: 50 Hz, 60 Hz, and Frequency 400 Hz. The factory default is 60 Hz.

To change the nominal frequency, complete the following steps:

1. Press the MODE button until the red LED next to [Setup] is lit. The circuit monitor displays “ConFig.”

2. Press the PHASE [Enter] button to select the Configuration option. The circuit monitor displays the password prompt “P - - - -.”

3. Enter the password. To enter the password, use the SELECT METER [Value] buttons to

increase or decrease the displayed value until it reaches the password value. Then press the PHASE [Enter] button.

4. Press the PHASE [Enter] button until the red LED next to [Nom. Freq.] flashes.

5. Press the SELECT METER [Value] buttons until the desired frequency is displayed.

6. Press the MODE button once. The red LED next to [Accept] flashes. The red LED next to [Nom. Freq.]

glows steadily.

7. To reject the new nominal frequency, press the PHASE [Enter] button once.

The circuit monitor returns to METERS mode.

8. To accept the new nominal frequency, press the SELECT METER [Value] button once to change from No to Yes. Then, press the PHASE [Enter] button.

The circuit monitor restarts.

Note: If the circuit monitor cannot measure a valid frequency, it uses the nominal frequency to perform metering calculations. For example, with no voltage present, the circuit monitor will meter amps using the nominal frequency in place of the missing measured frequency. Some metered values—such as THD and K-Factor— require a valid frequency. When a valid frequency cannot be measured, the circuit monitor displays dashes in place of values.

Chapter 4—Front Panel Operation

Resetting Demand, The following values can be reset from the circuit monitor front Energy, and Min./Max. Values panel: Demand Ammeter (A), Demand Power (W), Demand Power (VA),

Watthour Meter, Varhour Meter, and Minimums and Maximums.

Demand Power (W) and Demand Power (VA) are reset together; you cannot reset one without resetting the other. Likewise, the Watthour Meter and Varhour Meter are reset together.

Note: You can also reset energy, demand, and min/max values using the Resets option. The Resets option lets you perform resets but not change configuration values. See Performing Resets Using the Resets Option on the next page for more information.

To reset data, complete the following steps:

1. Press the MODE button until the red LED next to [Setup] is lit. The circuit monitor displays “ConFig.”

2. Press the PHASE [Enter] button to select the Configuration option. The circuit monitor displays the password prompt “P - - - -.”

3. Enter the password. To enter the password, use the SELECT METER [Value] buttons to

increase or decrease the displayed value until it reaches the password value. Then press the PHASE [Enter] button.

4. Press the PHASE [Enter] button until the red LED next to the desired reset item flashes.

Remember, if you choose Demand Power (W), the LED for Demand Power (VA) also lights, and vice versa. Likewise, if you choose Watthour Meter, the LED for Varhour Meter also lights, and vice versa.

5. Press the up arrow SELECT METER [Value] button to change the circuit monitor display from No to Yes.

6. Repeat steps 4 and 5 until you’ve said Yes to all items to be reset.

7. Press the MODE button once. The red LED next to [Accept] flashes. The red LEDs next to the selected

reset items glow steadily.

8. To cancel the reset(s), press the PHASE [Enter] button once. The circuit monitor display flashes and the circuit monitor returns to

METERS mode.

9. To perform the reset(s), press the SELECT METER [Value] button once to change from No to Yes. Then, press the PHASE [Enter] button.

The circuit monitor performs the resets and returns to METERS mode.

Bulletin No. 3020IB9814 December 1998

PERFORMING RESETS The Resets option lets you reset energy, demand, and min/max values. The USING THE RESETS same reset operations can be done using the Configuration option (described OPTION on the previous page). The difference is that using the Resets option, you can

perform resets only—you cannot change configuration values.

The Resets option is password protected. To access the Resets option, you must enter either the master password, or a special reset password. (See Setting the Master Password in this chapter for instructions on defining the master password.)

The reset password can be used to prevent accidental changes to configuration values. For example, you could provide an operator with the reset password only, allowing the operator to perform resets, but not change configuration values.

The reset password defaults to the master password. The circuit monitor’s factory default master password is 0. Therefore, when you receive a new circuit monitor, its reset password is also 0. When you change the master password, the reset password changes to match it. To define a reset password different than the master password, you must write a unique value—in the range 1–9998—to circuit monitor register 2031. You can write to register 2031 in one of two ways:

• From a remote PC, using POWERLOGIC application software. (Refer to the software instruction manual for specific instructions on writing to circuit monitor registers.)

• From the front panel of the circuit monitor, using the Diagnostics option. (See Reading and Writing Registers from the Front Panel in the Circuit Monitor Reference Manual for instructions on reading and writing registers using the Diagnostics option.)

Important: After you’ve defined a reset password, you can access the Resets option using either the reset password or the master password.

To perform resets using the Resets option, refer to figure 4-3 and complete the following steps:

1. Press the MODE button until the red LED next to [Setup] is lit.

The circuit monitor displays “ConFig.”

2. Press the down arrow SELECT METER button once.

The circuit monitor displays “rESETS.”

3. Press the PHASE [Enter] button to select the Resets option.

The circuit monitor displays the password prompt “P - - - -.”

4. Enter either the master password or the reset password.

To enter a password, use the SELECT METER [Value] buttons to increase or decrease the displayed value until it reaches the password value. Then press the PHASE [Enter] button.

5. Follow steps 4–9 of the reset procedure described on the previous page.

Start

Press MODE key until [Setup] LED

is lit.

Press the

▼ SELECT METER

key until “rESETS”

is displayed.

Press the PHASE

(Enter) key to select

the “rESETS” option.

P----

is displayed.

Press the SELECT

METER keys until your

password is displayed

Then press t

PHASE (Enter) key.

Press the PHASE

(Enter) key until the

LED next to the value

to be reset is lit.

is displayed.

Chapter 4—Front Panel Operation

Press the ▲ SELECT

METER (Value) key

to change from

Yes

Do you want to

select another

reset option?

Press the MODE key

once.

Circuit Monitor

selected

resets?

displays

Execute the

YES

Press

the ▲ SELECT

METER (Value) key

to select Yes

YES

Press the PHASE

(Enter) key

Circuit Monitor returns

to METERS mode.

Figure 4-3: Flowchart for performing resets using the Resets option

Press PHASE (Enter)

key

Circuit Monitor

performs resets

Bulletin No. 3020IB9814 December 1998

SETTING UP ALARM/RELAY The circuit monitor (models CM-2150 and higher) can detect over 100 alarm FUNCTIONS conditions, including over/under conditions, status input changes, phase

unbalance conditions, and more. (See Alarm Conditions and Alarm Codes in the Circuit Monitor Reference Manual for a complete listing.)

Each alarm condition can be set up to automatically operate one or more circuit monitor relays. Also, multiple alarm conditions can be assigned to operate the same relay(s). For a description of the circuit monitor’s alarm/ relay functions, see Alarm Functions in the Circuit Monitor Reference Manual.

If you do not have POWERLOGIC application software, you can set up the circuit monitor’s on-board alarm/relay functions from the circuit monitor’s front panel. Perform this set up using the Alarm/Relay (AL.rLY) option, one of the circuit monitor’s four setup options. For each alarm condition you can:

• Enable or disable the alarm condition

• Assign a priority level to the alarm condition

• Define any required pickup and dropout setpoints, and pickup and dropout time delays

• Set up the circuit monitor to operate up to three relay outputs when the alarm condition occurs

The circuit monitor’s relay outputs provide ten operating modes. (See Relay Output Operating Modes in the Circuit Monitor Reference Manual for descriptions of the modes.) When you assign an alarm condition to operate a relay from the front panel of the circuit monitor, the circuit monitor configures the relay to operate in Normal

mode. If Normal mode is not

acceptable, you’ll need to do one of the following:

• Set up the circuit monitor’s alarm/relay functions over the communications link, using POWERLOGIC application software (which lets you choose from the 10 available modes)

• First set up the alarm/relay functions from the circuit monitor’s front panel, then change the relay’s operating mode by performing register read/writes using either POWERLOGIC application software or the circuit monitor’s Diagnostics option (see Reading and Writing Registers from the Front Panel in the Circuit Monitor Reference Manual for instructions on reading and writing registers using the Diagnostics option)

Chapter 4—Front Panel Operation

General Setup Procedure The procedure below describes the general steps required to set up

alarm/relay functions. Figure 4-4 illustrates the procedure. For detailed steps, see Detailed Setup Procedure on the following page.

The general steps required to set up alarm/relay functions are:

1. Enter [Setup] Mode.

2. Choose the Alarm/Relay (AL.rLy) option.

3. Select an alarm number to configure. (See Alarm Setup Information in the Circuit Monitor Reference Manual for a list of alarm numbers.)

4. Define the required alarm/relay configuration items (priority level, pickup setpoint, pickup delay, and so on).

5. Accept or reject the changes just made.

6. Repeat steps 3–5 until you’ve configured all desired alarms.

7. Exit to Meters mode.

AL.rLY

Exit to

Meters

Mode

MODE

If you've made

no changes, the

Circuit Monitor skips this step.

Enter

Password

Select

Alarm No.

(ALr No)

Changes?

(No/Yes)

Enable/Set Priority Level

Pickup Setpoint (PU SP)

MODE

Pickup Delay (PU DLY)

Dropout Setpoint (DO SP)

Dropout Delay (DO DLY)

Assign Relays (rLY)

Alarm/Relay Configuration Items

Figure 4-4: Alarm/Relay setup

For each item, use the

SELECT

METER [Value]

buttons to change the displayed value (if desired). Press the

[ENTER]

accept the value and move to the next item.

PHASE

button to

Bulletin No. 3020IB9814 December 1998

Detailed Setup Procedure This section offers detailed steps on how to set up alarm/relay functions

from the front panel. Figure 4-4 illustrates the general flow of the setup procedure.

To set up alarm/relay functions, complete the following steps:

1. Press the MODE button until the red LED next to [Setup] is lit. The circuit monitor displays “ConFig.”

2. Press the down arrow SELECT METER button until the Circuit Monitor displays “AL.rLy.”

3. Press the PHASE [Enter] button to select the Alarm/Relay option. The circuit monitor displays the password prompt “P - - - -.”

4. Enter the master password. To enter the password, use the SELECT METER [Value] buttons to

increase or decrease the displayed value until it reaches the password value. Then press the PHASE [Enter] button.

The display alternates between “ALr No” (an abbreviation for alarm number) and “1”. Appendix I shows that alarm number 1 corresponds to the alarm condition “Over Current Phase A.” Refer to Alarm Setup Information in the Circuit Monitor Reference Manual while setting up alarm/relay functions.

5. Use the SELECT METER [Value] buttons to increase or decrease the displayed alarm number until you reach the desired number.

The circuit monitor display stops alternating while you change the alarm number. If an alarm condition is enabled, the circuit monitor displays the alarm condition’s priority to the left of the alarm number. For example, if you had previously enabled alarm number 1 and assigned it priority 0, the circuit monitor would display “P0 1”.

6. Press the PHASE [Enter] button to select the alarm number. If you have not previously enabled this alarm condition, the display

alternates between “ENAbLE” and “OFF.” If you’ve previously enabled this alarm condition, the display alternates between “ENAbLE” and the chosen alarm priority (P0, P1, P2, or P3).

7. To enable the selected alarm condition, and to assign the alarm condition a priority level, press the down arrow SELECT METER [Value] button until the desired priority level is displayed.

Note: Using POWERLOGIC software, you can assign one or more of the following actions for each alarm condition. The circuit monitor performs the assigned actions each time the alarm condition occurs, no matter what the priority level.

– Operate one or more relay outputs – Force data log entries into 1–14 user-defined data log files – Perform a 4-cycle waveform capture – Perform a 12-cycle event capture

Chapter 4—Front Panel Operation

Detailed Setup Procedure (cont.)

You must assign these actions to alarm conditions using POWERLOGIC software.

Depending on the chosen priority level, the circuit monitor also performs the actions described below.

P0—No priority. On the occurrence of a P0 alarm, the circuit monitor does the following:

• Performs any assigned actions P1—Highest priority level. On the occurrence of a P1 alarm, the circuit

monitor does the following:

• Puts the alarm number in the list of active alarms, accessible from the

front panel (see Viewing Active Alarms in the Circuit Monitor Reference Manual for instructions on viewing active alarms)

• Records the occurrence in the circuit monitor’s event log file

• Enters the alarm number in the P1 log, accessible from the front panel

(see Viewing the Priority 1 Log in the Circuit Monitor Reference Manual for a instructions on viewing the P1 log)

• Performs any assigned actions P2—Middle priority level. On the occurrence of a P2 alarm, the circuit

monitor does the following:

• Puts the alarm number in the list of active alarms, accessible from the

front panel (see Viewing Active Alarms in the Circuit Monitor Reference Manual for instructions on viewing active alarms)

• Records the alarm occurrence in the circuit monitor’s event log file

• Performs any assigned actions P3—Lowest priority level. On the occurrence of a P3 alarm, the circuit

monitor does the following:

• Puts the alarm number in the list of active alarms, accessible from the

front panel (see Viewing Active Alarms in the Circuit Monitor Reference Manual for instructions on viewing active alarms)

• Records the alarm occurrence in the circuit monitor’s event log file

• Performs any assigned actions

8. Press the PHASE [Enter] button to select the priority level. The display alternates between “PU SP” (an abbreviation for pickup

setpoint) and the setpoint value.

9. Use the SELECT METER [Value] buttons to increase or decrease the displayed value until you reach the desired pickup setpoint.

See Setpoint-Driven Alarms in the Circuit Monitor Reference Manual for a description of pickup and dropout setpoint and time delays.

If you are configuring an alarm condition that does not require some or all of the pickup and dropout setpoints and delays, for example status

Bulletin No. 3020IB9814 December 1998

Detailed Setup Procedure (cont.)

input transition alarm conditions, the circuit monitor allows you to enter setpoints and delays, but it ignores any values that don’t apply.

10. Press the PHASE [Enter] button. The display alternates between “PU dLy” (an abbreviation for pickup

delay) and the delay value.

11. Use the SELECT METER [Value] buttons to increase or decrease the displayed value until you reach the desired pickup delay (in seconds).

12. Press the PHASE [Enter] button. The circuit monitor display alternates between “do SP” (an abbreviation

for dropout setpoint) and the setpoint value.

13. Use the SELECT METER [Value] buttons to increase or decrease the displayed value until you reach the desired dropout setpoint.

14. Press the PHASE [Enter] button. The display alternates between “do dLy” (an abbreviation for dropout

delay) and the delay value.

15. Use the SELECT METER [Value] buttons to increase or decrease the displayed value until you reach the desired dropout delay (in seconds).

16. Press the PHASE [Enter] button. The circuit monitor displays “r1 No”. “r1” stands for relay 1.

17. If you want the circuit monitor to operate relay R1 each time the alarm condition occurs, press the up arrow SELECT METER [Value] button to change from “No” to “Yes.” Then press the PHASE [Enter] button.

The circuit monitor displays “r2 No”.

18. If you want the circuit monitor to operate relay R2 each time the alarm condition occurs, press the up arrow SELECT METER [Value] button to change from “No” to “Yes.” Then press the PHASE [Enter] button.

The circuit monitor displays “r3 No”.

19. If you want the circuit monitor to operate relay R3 each time the alarm condition occurs, press the up arrow SELECT METER [Value] button to change from “No” to “Yes.” Then press the PHASE [Enter] button.

The display alternates between “ENAbLE” and the priority level.

20. Press the MODE button. The circuit monitor displays “No.”

21. To save the configuration changes you just made, press the up arrow SELECT METER [Value] button to change from “No” to “Yes.” Then press the PHASE [Enter] button. To discard the changes, press the PHASE [Enter] button.

The circuit monitor displays the alarm number. At this point you’ve completed the configuration process for one alarm condition.

Chapter 4—Front Panel Operation

Detailed Setup Procedure (cont.)

22. Repeat steps 5-21 above for each additional alarm condition that you’d like to configure.

23. To leave the Alarm/Relay setup option, press the MODE button while the circuit monitor is displaying the “ALr No” prompt.

The circuit monitor returns to METERS mode.

VIEWING ACTIVE ALARMS Each of the circuit monitor’s alarm conditions has an associated alarm code.

The alarm codes of the active alarms can be viewed from the front panel. (The alarm conditions and their associated alarm codes are listed in Alarm Setup Information in the Circuit Monitor Reference Manual.)

Note: The ALARM mode LED, on the circuit monitor’s front panel, flashes while at least one of the following conditions is true: a nonzero priority alarm is active, or a priority one alarm has occurred since the last time the priority 1 log was cleared.

To view the active alarm codes, complete the following steps:

1. Press the MODE button until the red LED next to Alarm glows steadily. The circuit monitor displays “P1.Log.”

2. Press the up arrow SELECT METER [Value] button until “AL.CodE” (an abbreviation for alarm code) is displayed.

3. Press the PHASE [Enter] button. The circuit monitor displays the lowest active alarm code. If there are no

active alarms, the circuit monitor displays -None-. Each alarm code is displayed with either an “rLY” extension or an “AL”

extension. If you have set up the alarm condition to operate one or more relays, the code appears with an rLY extension (for relay). If you did not set up the alarm condition to operate a relay, the code appears with an AL extension (for alarm only).

4. Press the down arrow SELECT METER [Value] button to cycle through the active alarms.

The circuit monitor displays the codes from lowest to highest.

Bulletin No. 3020IB9814 December 1998

VIEWING THE To provide a record of high priority alarm occurrences, the circuit monitor PRIORITY 1 LOG maintains a priority 1 log (P1 log). See Setting Up Alarm/Relay Functions in

this chapter for a complete description of the priority levels, and instructions on assigning priority levels from the front panel.

The P1 log stores up to 10 of the last priority 1 alarms. The log operates in a first-in-first-out (FIFO) manner. In other words, when the log is full, the oldest log entry (the first in) is removed to make room for the new entry.

When a priority 1 alarm occurs, the circuit monitor records it in the P1 log. The alarm remains in the P1 log until one of the following occurs: 10 new P1 alarms occur pushing it out of the log, or you manually clear the P1 log (see Clearing the Priority 1 Log on the next page).

You can view the P1 log from the circuit monitor’s front panel. The following procedure tells how.

To view the P1 log, complete the following steps:

1. Press the MODE button until the red LED next to ALARM glows steadily.

The circuit monitor displays “P1.Log.”

2. Press the PHASE [Enter] button. The circuit monitor displays the alarm code of the lowest priority 1

alarm. If no priority 1 alarms have occurred since the P1 log was last cleared, the circuit monitor displays -None-.

Each alarm code is displayed with either an “rLY” extension or an “AL” extension. If you have set up the alarm condition to operate one or more relays, the code appears with an rLY extension (for relay). If you did not set up the alarm condition to operate a relay, the code appears with an AL extension (for alarm only).

4. Press the down arrow SELECT METER [Value] button to cycle through the alarm codes.

The circuit monitor displays the codes from lowest to highest.

5. To exit the P1 log but remain in the ALARM mode, press the PHASE [Enter] button. To exit the ALARM mode altogether, press the MODE button.

Chapter 4—Front Panel Operation

CLEARING To provide a record of high priority alarm occurrences available for display THE PRIORITY 1 LOG from the front panel, the circuit monitor maintains a priority 1 log (P1 log).

See Setting Up Alarm/Relay Functions in this chapter for a complete description of the priority levels, and instructions on assigning priority levels from the front panel. See Viewing the Priority 1 Log on the previous page for instructions on viewing the P1 log.

The P1 log stores up to 10 of the last priority 1 alarms. The log operates in a first-in-first-out (FIFO) manner. In other words, when the log is full, the first alarm entry in (the oldest) is the first out.

When a priority 1 alarm occurs, the circuit monitor records it in the P1 log. The alarm remains in the P1 log until one of the following occurs: 10 new P1 alarms occur (pushing it out of the log), or you manually clear the P1 log. The procedure below tells how to clear the P1 log.

IMPORTANT: Clearing the P1 log causes the circuit monitor to release all relays that meet the following conditions:

• The relay must be configured to operate in latched mode.

• The relay must be configured for internal control. In other words, you must have set up the circuit monitor to operate the relay in response to an alarm condition.

• All alarms assigned to operate the latched relay must not be in their alarm state.

To clear the P1 log, complete the following steps:

1. Press the MODE button until the red LED next to ALARM glows

steadily. The circuit monitor displays “P1.Log.”

2. Press the SELECT METER [Value] buttons until “CLEAr” is

displayed.

3. Press the PHASE [Enter] button.

The circuit monitor displays “CLr. No”.

4. To abort the clear, press the PHASE [Enter] button.

5. To clear the log, press the up arrow SELECT METER [Value] button to

change from “CLr. No” to “CLr.YES.” Then press the PHASE [Enter] button.

The circuit monitor clears the P1 Log, and releases any relays that meet the conditions described above.

Chapter 5—Maintenance and Troubleshooting

CHAPTER 5—MAINTENANCE AND TROUBLESHOOTING

MAINTENANCE The circuit monitor does not require regular maintenance, nor does it

contain any user-serviceable parts. If the circuit monitor requires service, contact your local Schneider Electric sales representative, or call the POWERLOGIC Technical Support Center for assistance. See Getting

Technical Support in this chapter. Do not open the circuit monitor. Opening the circuit monitor voids the warranty.

Battery-Backed RAM The circuit monitor uses battery-backed nonvolatile RAM to retain all data

except calibration constants. Calibration constants are stored in nonvolatile EEPROM, which requires no battery. The circuit monitor’s battery-backed RAM lasts many decades under typical operating conditions. The battery-backed RAM is activated when the circuit monitor is manufactured. With no control power applied to the circuit monitor, the battery can back up RAM for a continuous period of 7 years at 70°C. Once control power is applied, the RAM battery is no longer under load. Under no load, the life of the battery-backed RAM is 100 years at 55°C continuous, 40 years at 60°C continuous, and 10 years at 70°C continuous. Should the RAM ever need replacement, contact your Schneider Electric representative.

DANGER

HAZARD OF ELECTRIC SHOCK

Do not attempt to service the circuit monitor. CT and PT inputs may contain hazardous currents and voltages. Only authorized Schneider Electric service personnel should service the circuit monitor.

Failure to observe this precaution will result in death or serious injury.

CAUTION

HAZARD OF EQUIPMENT DAMAGE

Dielectric (Hi-Pot) testing of the circuit monitor may damage the unit. Do not Hi-Pot or Megger. Before Hi-Pot or Megger testing any equipment in which the circuit monitor is installed, disconnect all input and output wires to the circuit monitor.

Failure to observe this precaution can result in equipment damage.

Bulletin No. 3020IB9814 December 1998

TROUBLESHOOTING This section describes three potential problems, their possible causes, and

checks and/or cure for each. If, after completing the listed checks, you cannot solve the problem, contact the POWERLOGIC Technical Support Center for assistance. See Getting Technical Support on the next page.

PROBLEM: After applying control power to the circuit monitor, the display is still blank.

Possible Cause: The circuit monitor is not receiving the necessary power.

Check or Cure: Verify that circuit monitor L and N terminals (terminals 25 and 27) are receiving the necessary power. If you are using an optional Voltage/Power Module (VPM), check to see that the module is properly installed on the circuit monitor. Refer to your VPM instruction bulletin.

PROBLEM: The data being displayed is inaccurate or not what you expect.

Possible Cause: Incorrect setup values.

Check or Cure: Check to see that the correct values have been entered

for circuit monitor setup parameters (CT and PT ratings, System Type, Nominal Frequency, and so on). See Configuring the Circuit Monitor in

Chapter 4 for setup instructions.

Possible Cause: Circuit monitor is wired improperly.

Check or Cure: Check that CTs and PTs are connected correctly (proper polarity observed) and energized. Check shorting terminals. See Wiring CTs, PTs, and Control Power in Chapter 3 for wiring diagrams.

Possible Cause: Incorrect voltage inputs.

Check or Cure: Check circuit monitor voltage input terminals

(terminals 9, 10, 11,12) to verify that adequate voltage is present.

Possible Cause: Circuit monitor is grounded incorrectly.

Check or Cure: Verify that the circuit monitor is grounded as described in Grounding the Circuit Monitor in Chapter 3.

Chapter 5—Maintenance and Troubleshooting

Troubleshooting (cont.) PROBLEM: Cannot communicate with circuit monitor from a remote

personal computer.

Possible Cause: Circuit monitor address is incorrect.

Check or Cure: Check to see that the circuit monitor is correctly addressed. See Setting the Device Address in Chapter 4 for instructions.

Possible Cause: Circuit monitor baud rate is incorrect.

Check or Cure: Verify that the baud rate of the circuit monitor matches the baud rate of all other devices on its communications link. See Setting the Baud Rate in Chapter 4 for instructions.

Possible Cause: Communications lines are improperly biased.

Check or Cure: Check to see that a multipoint communications adapter is being properly used to bias the communication lines. See Biasing the Communications Link in Chapter 3 for instructions.

Possible Cause: Communications lines are improperly terminated.

Check or Cure: Check to see that a multipoint communications terminator is properly installed. See Terminating the Communications Link in Chapter 3 for instructions.

Possible Cause: Incorrect route statement to circuit monitor.

Check or Cure: Check route statement. Refer to the software instruction

bulletin for instructions on defining route statements.

GETTING TECHNICAL If you have questions about this product, or any other POWERLOGIC or SUPPORT POWERLINK products, please contact your local Schneider Electric

representative, who will contact the Power Management Operations Technical Support Center. The Technical Support Center will respond to your questions by telephone, fax, or mail as soon as possible.

To get the most from your POWERLOGIC and POWERLINK systems, consider attending POWERLOGIC University. POWERLOGIC University offers a series of customer training courses designed to improve your skills using the POWERLOGIC and POWERLINK systems. Contact your Schneider Electric representative for more information.

APPENDIX A—CIRCUIT MONITOR DIMENSIONS

9.14

232

12.02

305

Appendix A—Circuit Monitor Dimensions

3.71

3.15

.56

10.35

263

.83

Rear View Side View

Dimensions

Inches

Millimeters

Protective covers shown installed.

Figure A-1: Circuit monitor dimensions

7.35

187

Top View

.89

Bulletin No. 3020IB9814 December 1998

APPENDIX A (cont.)

10.35

263

.83

5.65

5.09

129

144

.56

10.35

263

.83

4.58

116

5.14

131

.56

Figure A-2: Circuit monitor with Input/Output and Voltage/Power modules

Dimensions

Figure A-3: Circuit monitor with Input/Output module

Inches

Millimeters

APPENDIX B—SPECIFICATIONS

Metering Specifications Current Inputs (Each Channel)

Current Range........................................................................... 0–7.4 A ac

Nominal Current ............................................................................. 5 A ac

Voltage Inputs (Each Channel)

Voltage Range ........................................................................... 0–180 Vac

Nominal Voltage (typical)........................................................... 120 Vac

Frequency Range ........................................................................... 45 to 65 Hz

........................................................................ 350 to 400 Hz

Harmonic Response—Phase Voltages and Currents

Frequency 45 Hz to 65 Hz ............................................... 31st Harmonic

Data Update Rate.................................................................. 1 second typical

Accuracy (CM-2150 and higher)

Current➀........................................... ±0.15% reading + 0.05% full scale

Voltage .............................................. ±0.15% reading + 0.05% full scale

Power ................................................ ±0.30% reading + 0.05% full scale

True Power Factor ............................................ ±1% (0.5 lag to 0.5 lead)

Displacement Power Factor ............................ ±1% (0.5 lag to 0.5 lead)

Energy ............................................................................................. ±0.30%

Demand........................................................................................... ±0.30%

Frequency 50/60 Hz................................................................... ±0.01 Hz

Temperature (Unit Temperature –25°C to 75°C) .......................... ±1°C

Time of Day Clock (At 25°C) .......................... ±1.5 second in 24 hours

THD ..................................................................................................... 1.0%

K-Factor............................................................................................... 1.0%

Crest Factor ........................................................................................ 1.0%

Accuracy (CM-2050 only)

Current➀............................................. ±0.5% reading + 0.25% full scale

Voltage ................................................ ±0.5% reading + 0.25% full scale

Power .................................................. ±1.0% reading + 0.25% full scale

True Power Factor .............................................................. ±1% full scale

Displacement Power Factor .............................................. ±1% full scale

Energy and Demand .................... ±0.5% reading above 50% full scale

Frequency 50/60 Hz................................................................... ±0.05 Hz

Temperature (Unit Temperature –25°C to 75°C) .......................... ±1°C

Time of Day Clock (At 25°C) .......................... ±1.5 second in 24 hours

THD ..................................................................................................... 2.0%

K-Factor............................................................................................... 2.0%

Crest Factor ........................................................................................ 2.0%

Appendix B—Specifications

±1.0% reading above 20% full scale

➀ Any CT secondary currents less than 20 mA are reported as zero.

Bulletin No. 3020IB9814 December 1998

Metering Input Current Inputs

Electrical Specifications Nominal Full Scale ............................................................ 5.0 Amps rms

Metering Over-range ....................................................................... 145%

Overcurrent Withstand........................................ 15 A rms Continuous

50 A rms 10 seconds in 1 hour

500 A rms 1 second in 1 hour

Input Impedance ....................................................... Less than 0.1 Ohm

Burden.......................................................................... Less than 0.15 VA

Isolation.............................................................................. 1500 V, 1 MIN

Voltage Inputs

Nominal Full Scale ........................................... 120 Vac Line to Neutral

Metering Over-range ....................................................................... 150%

Dielectric Withstand .................................................. 180 V Continuous

1500 V 1 Second

Input Impedance ............................................. Greater than 2 Megohm

Control Power Input Specifications 120/240 Vac Nominal

Operating Input Range ........................................................ 100–264 Vac

Burden.................................................................................. 11 VA–15 VA

Burden, max.➀...................................................................................27 VA

Frequency Range .................................................................... 47 to 65 Hz

Isolation................................................................................ 1500 V, 1 min

Ride-through on Power Loss ............................. 0.1 sec at 120/240 Vac

125/250 Vdc Nominal

Operating Input Range ........................................................ 100–300 Vdc

Burden............................................................................................... 0.12 A

Isolation.......................................................................... 1500 V, 1 minute

Ride-through on Power Loss ..................................... 0.1 sec at 120 Vdc

Main’s Supply Voltage Fluctuations.......................... not to exceed +/–10%

Environmental Specifications Operating Temperature ............................................................. –25 to +70°C

Storage Temperature.................................................................. –40 to +85°C

Humidity Rating ..... 5–95% Relative Humidity (non-condensing) at 40ºC

Pollution Degree ................................................................................................2

Installation Category ........................................................................................ II

Altitude Range ........................................................... 0 to 4,570 m (15,000 ft.)

Physical Specifications Weight (approximate, without add-on modules)................................. 7 lbs

Dimensions ............................................................................ See Appendix A

Regulatory/Standards Compliance Electromagnetic Interference

Radiated ...................................................................... FCC Part 15 Class A

Conducted .................................................................. FCC Part 15 Class A

Electrostatic Discharge (Air Discharge) .......................IEC 1000-4-2 Level 4

Electrical Fast Transient..................................................IEC 1000-4-4 Level 3

Immunity to Surge........................................................... IEC 1000-4-5 Level 4

Dielectric Withstand..................................................................... CSA, UL 508

Safety .............................................................................................. CSA, UL 508

CE Marking

➀ See table 3-1, page 17, in the output modules present.

Circuit Monitor Reference Manual

for burden with input/

Appendix C—Installing Terminal Strip Covers

APPENDIX C—INSTALLING TERMINAL STRIP COVERS

The hardware kit provided with the circuit monitor includes several grey protective terminal strip covers. After wiring the circuit monitor, install these terminal strip covers for protection.

Figure F-1 illustrates terminal strip cover installation. Refer to this figure when completing the procedure below.

To install the terminal strip covers, complete the following steps:

1. Bend the terminal strip covers at the crease so they form a right angle.

2. Install each terminal strip cover using two #8-32 SEMS screws, provided in the circuit monitor hardware kit.

Be certain to orient the covers so that you can route wires outward. Wires should be routed outward to provide room for future addition of optional modules.

#8-32 SEMS screw

(Two required for each cover)

Bend covers at crease to form right

angle. Install as shown so wires can

be routed outward.

Figure C-1: Installing terminal strip covers

PANEL

INDEX

Index

Alarm/relay functions 58 Alarms, viewing active 63

Battery-backed RAM 67 Baud rate

max. distances of comms link 53 setting 53

Biasing

comms link 37

Buttons

how they work in setup mode 41

CE Compliance 14 Circuit monitor

configuration procedure 42 configuring 42 connections 11 defaults 42 description 1 dimensions 71 dimensions w/ I/O and VPM modules 72 dimensions w/ I/O module 72 feature comparison 3, 4, 5 front panel 9 front panel operation 39 grounding 27 instrumentation 3 mounting 15 setup, detailed 60 setup, general 59

types 3 Clearing the priority 1 log 65 comms link

terminating 36 Communications

wiring 28 Communications link

biasing 37

length of 34 Communications wiring

Ethernet gateway 31

network interface module 32

personal computer 30

SY/MAX programmable controller 33 system display 29

Configuration data

viewing in protected mode 45

Configuring

circuit monitor 42

Control power

deriving from phase PT inputs 26

Current Transformers (CTs)

setting ratios 47

Daisy-chaining 35 Default 42 Demand, energy , and min/max values

resetting 55

Demand interval

setting 49

Device address

setting 52

Dimensions 71

Ethernet gateway

connecting to 31

Front panel operation 39

Getting technical support 69 Grounding

circuit monitor 27

Installing terminal strip covers 75 Introduction 1

Maintenance 67 Maintenance and troubleshooting 67–69 Mode

setup 40

Bulletin No. 3020IB9814 December 1998

Network interface module, POWERLOGIC

connecting to 32

Nominal frequency

setting 54

Password

setting 46

Performing resets

flowchart 57

Personal computer

connecting to 30

Phase PT inputs

deriving control power from 26

Potential Transformers (PTs)

setting ratios 48

POWERLOGIC devices

daisy-chaining 35 POWERLOGIC University 69 Priority 1 log

clearing 65

viewing 64

RAM, battery-backed 67 Related documents 7 Resetting demand, energy , and min/max values 55

Safety precautions 5, 6 Setting the baud rate 53 Setting the CT ratios 47 Setting the demand interval 49 Setting the device address 52 Setting the nominal frequency 54 Setting the password 46 Setting the PT ratio 48 Setting the watthour/pulse output 51 Setting up alarm/relay functions 58 Setup mode 40

alarm/relay 40

choosing setup option 41

configuration 40

diagnostics 40

how the buttons work 41

resets 40 Software

instruction bulletins 7

SY/MAX programmable controller

connecting to 33

System display

connecting to 29

System types 48

setting 48

Technical support 69 Terminal strip covers, installing 75 Terminating

comms link 36

Troubleshooting 68

Viewing active alarms 63 Viewing the priority 1 log 64

Watthour/pulse output

setting 51

Wiring

2-1/2 element metering system type 42 (calcu-

lated 22 2-1/2 element metering system type 43 23 3-phase, 3-wire delta 18 3-phase, 4-wire wye, 3-wire load 21 3-phase, 4-wire wye, ground 19 3-phase, 4-wire wye, ground, metered neutral 20 biasing comms link 37 circuit monitors to one set of PTs and one CPT 25 communications 28 CTs, PTs, control power 17 DC control power 24 length of comms link 34 supported systems 17 terminating comms link 36

Merlin Gerin PowerLogic 2000 Installation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual