Schneider Electric PM870, PM850, PM810, PM820 User Manual

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PowerLogic™ Series 800 Power Meter PM810, PM820, PM850, & PM870

User Guide

63230-500-225A2 03/2011

63230-500-225A2 PowerLogicTM Series 800 Power Meter

DANGER

WARNING

CAUTION

3/2011

HAZARD CATEGORIES AND SPECIAL SYMBOLS

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

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

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

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

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

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

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

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

PLEASE NOTE

Electrical equipment should be installed, operated, serviced, and maintained only by qualified personnel. No responsibility is assumed by Schneider Electric for any consequences arising out of the use of this material.

CLASS A FCC STATEMENT

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. This Class A digital apparatus complies with Canadian ICES-003.

iii

PowerLogicTM Series 800 Power Meter 63230-500-225A2

3/2011

63230-500-225A2 PowerLogicTM Series 800 Power Meter 3/2011 Contents

Chapter 1—Introduction - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1

Topics Not Covered In This Manual - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1 What is a Power Meter? - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1 Power Meter Hardware - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2 Box Contents - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6 Features - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7 Firmware - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7

Chapter 2—Safety Precautions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9

Chapter 3—Operation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11

Power Meter Display - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11 How the Buttons Work - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11 Changing Values - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11 Menu Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11 Power Meter Setup - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 13 Power Meter Resets - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 23 Power Meter Diagnostics - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 25

Chapter 4—Metering Capabilities - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 27

Real-Time Readings - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 27 Power Factor Min/Max Conventions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 28 Power Factor Sign Conventions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 29 Demand Readings - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 30 Energy Readings - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 35 Energy-Per-Shift (PM810 with PM810LOG) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 36 Power Analysis Values - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 37

Chapter 5—Input/Output Capabilities - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 39

Digital Inputs - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 39 Demand Synch Pulse Input - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 40 Relay Output Operating Modes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 40 Solid-state KY Pulse Output - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 42 Fixed Pulse Output - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 43 Calculating the Kilowatthour-Per-Pulse Value - - - - - - - - - - - - - - - - - - - - - - - - - - - 43 Analog Inputs - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 44 Analog Outputs - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 44

Chapter 6—Alarms - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 45

Basic Alarms - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 45

Basic Alarm Groups - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 45 Setpoint-driven Alarms - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 46 Priorities - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 47 Viewing Alarm Activity and History - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 47 Types of Setpoint-controlled Functions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 47 Scale Factors - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 49 Scaling Alarm Setpoints - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 50 Alarm Conditions and Alarm Numbers - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 50

Advanced Alarms- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 53

Advanced Alarm Groups - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 53 Alarm Levels - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 54 Viewing Alarm Activity and History - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 54 Alarm Conditions and Alarm Numbers - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 55

Chapter 7—Logging - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 57

Introduction - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 57 Memory Allocation for Log Files - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 58 Alarm Log - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 58 Maintenance Log - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 58 Data Logs - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 60 Billing Log - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 61

PowerLogic Contents 3/2011

Series 800 Power Meter 63230-500-225A2

Chapter 8—Waveform Capture - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -63

Introduction - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -63 Waveform Capture - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -63 Waveform Storage - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -64 How the Power Meter Captures an Event - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -64 Channel Selection in PowerLogic Software - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -64

Chapter 9—Disturbance Monitoring (PM870) - - - - - - - - - - - - - - - - - - - - - - - - - - - - -65

About Disturbance Monitoring - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -65 Capabilities of the PM870 During an Event - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -67

Chapter 10—Maintenance and Troubleshooting - - - - - - - - - - - - - - - - - - - - - - - - - -69

Introduction - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -69 Power Meter Memory - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -69 Identifying the Firmware Version, Model, and Serial Number - - - - - - - - - - - - - - - - -70 Viewing the Display in Different Languages - - - - - - - - - - - - - - - - - - - - - - - - - - - - -70 Technical Support - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -70 Troubleshooting - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -71

Appendix A—Instrument Transformer Wiring: Troubleshooting Tables - - - - - - - - 73

Using This Appendix - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -73 Section I: Common Problems for 3-Wire and 4-Wire Systems - - - - - - - - - - - - - - - -74 Section II: 3-Wire System Troubleshooting - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -75 Section III: 4-Wire System Troubleshooting - - - - - - - - - - - - - - - - - - - - - - - - - - - - -76 Field Example - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -78

Appendix B—Register List - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 79

Register List Access - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -79 About Registers - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -79 How Date and Time are Stored in Registers - - - - - - - - - - - - - - - - - - - - - - - - - - - - -80 How Signed Power Factor is Stored in the Register - - - - - - - - - - - - - - - - - - - - - - - -80 Supported Modbus Commands - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -81 Resetting Registers - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -81

Appendix C—Using the Command Interface- - - - - - - - - - - - - - - - - - - - - - - - - - - - - 83

Overview of the Command Interface - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -83 Operating Outputs from the Command Interface - - - - - - - - - - - - - - - - - - - - - - - - - -86 Using the Command Interface to Change Configuration Registers - - - - - - - - - - - - -86 Conditional Energy - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -87 Incremental Energy - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -88 Setting Up Individual Harmonic Calculations - - - - - - - - - - - - - - - - - - - - - - - - - - - - -89 Changing Scale Factors - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -90 Enabling Floating-point Registers - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -91

Appendix D—Advanced Power Quality Evaluations - - - - - - - - - - - - - - - - - - - - - - - 93

Power Quality Standards - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -93 SEMI-F47/ITI (CBEMA) Specification - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -93 EN50160:2000 Specification - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -95 How Evaluation Results Are Reported - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -95 Possible Configurations Through Register Writes - - - - - - - - - - - - - - - - - - - - - - - - -96 Evaluation During Normal Operation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -96 Evaluations During Abnormal Operation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -97 Operation with PQ Advanced Enabled - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -99 Advanced Power Quality Evaluation System Configuration and Status Registers [EN50160 and SEMI-F47/ITI (CBEMA)] - - - - - - - - - - - - - - - -99 EN50160 Evaluation Data Available Over a Communications Link - - - - - - - - - - - - 101 Setting Up PQ Advanced Evaluation from the Display - - - - - - - - - - - - - - - - - - - - -104

Glossary - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 105

Terms - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 105 Abbreviations and Symbols - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -107

Index - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 109

63230-500-225A2 PowerLogicTM Series 800 Power Meter 3/2011 Chapter 1—Introduction

Chapter 1—Introduction

This user guide explains how to operate and configure a PowerLogic™ Series 800 Power Meter. Unless otherwise noted, the information contained in this manual refers to the following power meters:

• Power meter with integrated display

• Power meter without a display

• Power meter with a remote display

Refer to “Power Meter Parts and Accessories” on page 5 for all models and model numbers. For a list of supported features, see “Features” on page 7.

NOTE: The power meter units on the PM810, PM810U, and the PM810RD are functionally equivalent.

Topics Not Covered In This Manual

Some of the power meter’s advanced features, such as on-board data logs and alarm log files, can only be set up via the communications link using PowerLogic software. This power meter user guide describes these advanced features but does not explain how to set them up. For information on using these features, refer to your software’s online help or user guide.

What is a Power Meter?

A power meter is a multifunction, digital instrumentation, data acquisition and control device. It can replace a variety of meters, relays, transducers, and other components. This power meter is equipped with RS485 communications for integration into any power monitoring/control system and can be installed at multiple locations within a facility.

These are true rms meters, capable of exceptionally accurate measurement of highly non-linear loads. A sophisticated sampling technique enables accurate measurements through the 63rd harmonic

➀

. You can view over 50 metered values, plus minimum and maximum data, either from the display or remotely using software. Table 1 – 1 summarizes the readings available from the power meter.

Table 1–1: Summary of power meter instrumentation

Real-time Readings Power Analysis

• Current (per phase, residual, 3-Phase)

• Voltage (L–L, L–N, 3-Phase)

• Real Power (per phase, 3-Phase

• Reactive Power (per phase, 3-Phase

• Apparent Power (per phase, 3-Phase

• Power Factor (per phase, 3-Phase

• Frequency

• THD (current and voltage)

Energy Readings Demand Readings

• Accumulated Energy, Real

• Accumulated Energy, Reactive

• Accumulated Energy, Apparent

• Bidirectional Readings

• Reactive Energy by Quadrant

• Incremental Energy

• Conditional Energy

➀ Individual harmonics are not calculated in the PM810. The PM810 with PM810LOG, and the PM820,

calculate distortion to the 31st harmonic. The PM850 and PM870 calculate distortion to the 63rd harmonic.

• Displacement Power Factor (per phase, 3-Phase

• Fundamental Voltages (per phase)

• Fundamental Currents (per phase)

• Fundamental Real Power (per phase)

• Fundamental Reactive Power (per phase)

• Unbalance (current and voltage)

•Phase Rotation

• Current and Voltage Harmonic Magnitudes and Angles (per phase)

• Sequence Components

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

• Average Power Factor (3-Phase total)

• Demand Real Power (per phase present, peak)

• Demand Reactive Power (per phase present, peak)

• Demand Apparent Power (per phase present, peak)

• Coincident Readings

• Predicted Power Demands

➀

PowerLogicTM Series 800 Power Meter 63230-500-225A2

Bottom View

Back View

Chapter 1—Introduction 3/2011

Power Meter Hardware

Power Meter With Integrated Display

Figure 1–1: Parts of the Series 800 Power Meter with integrated display

Table 1–2: Parts of the Series 800 Power Meter with integrated display

No. Part Description

1 Control power supply connector Connection for control power to the power meter.

2 Voltage inputs Voltage metering connections.

3 I/O connector KY pulse output/digital input connections.

4 Heartbeat LED A green flashing LED indicates the power meter is ON.

5 RS-485 port (COM1)

6 Option module connector Used to connect an option module to the power meter.

7 Current inputs Current metering connections.

8 Integrated display Visual interface to configure and operate the power meter.

The RS-485 port is used for communications with a monitoring and control system. This port can be daisy-chained to multiple devices.

63230-500-225A2 PowerLogicTM Series 800 Power Meter

Bottom View

Back View

3/2011 Chapter 1—Introduction

Power Meter Without Display

Figure 1–2: Parts of the Series 800 Power Meter without display

Table 1–3: Parts of the Series 800 Power Meter without display

No. Part Description

1 Control power supply connector Connection for control power to the power meter.

2 Voltage inputs Voltage metering connections.

3 I/O connector KY pulse output/digital input connections.

4 Heartbeat LED A green flashing LED indicates the power meter is ON.

5 RS-485 port (COM1)

6 Option module connector Used to connect an option module to the power meter.

7 Current inputs Current metering connections.

The RS-485 port is used for communications with a monitoring and control system. This port can be daisy-chained to multiple devices.

PowerLogicTM Series 800 Power Meter 63230-500-225A2

TX/RX

4 5 6 87

PM8RDA Top View

Chapter 1—Introduction 3/2011

Power Meter With Remote Display

NOTE: The remote display kit (PM8RD) is used with a power meter without a display. See “Power Meter Without Display” on page 3 for the parts of the power meter without a display.

Figure 1–3: Parts of the remote display and the remote display adapter

Table 1–4: Parts of the remote display

No. Part Description

1 Remote display adapter (PM8RDA)

2 Cable CAB12 Connects the remote display to the remote display adapter.

3 Remote display (PM8D) Visual interface to configure and operate the power meter.

4 Communications mode button Use to select the communications mode (RS232 or RS485).

5 Communications mode LED

6 RS232/RS485 port

7 Tx/Rx Activity LED The LED flashes to indicate communications activity.

8 CAB12 port

Provides the connection between the remote display and the power meter. Also provides an additional RS232/RS485 connection (2- or 4-wire).

When lit, the LED indicates the communications port is in RS232 mode.

This port is used for communications with a monitoring and control system. This port can be daisy-chained to multiple devices.

Port for the CAB12 cable used to connect the remote display to the remote display adapter.

63230-500-225A2 PowerLogicTM Series 800 Power Meter 3/2011 Chapter 1—Introduction

Power Meter Parts and Accessories

Table 1–5: Power Meter Parts and Accessories

Description

Power meters

Power meter with integrated display

Power meter without display

Power meter with remote display

Accessories

Remote display with remote display adapter

Remote display adapter PM8RDA

Square D

PM810

PM820

PM850

PM870

PM810U

PM820U

PM850U

PM870U

PM810RD

PM820RD

PM850RD

PM870RD

PM8RD PM8RDMG

Model Number

Schneider

Electric

➀

➁

➂

➃

➀

➁

➂

➃

➀

➁

➂

➃

PM810MG

PM820MG

PM850MG

PM870MG

PM810UMG

PM820UMG

PM850UMG

PM870UMG

PM810RDMG

PM820RDMG

PM850RDMG

PM870RDMG

➀

➁

➂

➃

➀

➁

➂

➃

➀

➁

➂

➃

Input/Output modules PM8M22, PM8M26, PM8M2222

PM810 logging module PM810LOG

Cable (12 feet) extender kit for displays

Retrofit gasket (for 4 in. round hole mounting)

CM2000 retrofit mounting adapter PM8MA

➀ The power meter units for these models are identical and support the

same features (see “Features” on page 7).

➁ The power meter units for these models are identical and support the

same features (see “Features” on page 7).

➂ The power meter units for these models are identical and support the

same features (see “Features” on page 7).

➃ The power meter units for these models are identical and support the

same features (see “Features” on page 7).

RJ11EXT

PM8G

PowerLogicTM Series 800 Power Meter 63230-500-225A2

Chapter 1—Introduction 3/2011

Box Contents

Table 1–6: Box contents based on model

Model Description Box Contents

• Power Meter with integrated display

• Hardware kit (63230-500-16) containing: — Two retainer clips

Power Meter with Integrated Display

Power Meter without Display

Power Meter with Remote Display

— Template — Plug set — Terminator MCT2W

• Power Meter installation guides (EN, FR, ES, DE)

• Power Meter specification guide

• Power Meter without display

• Hardware kit (63230-500-16) containing: — Two retainer clips — Template — DIN Slide (installed at factory) — Plug set — Terminator MCT2W

• Power Meter installation guides (EN, FR, ES, DE)

• Power Meter specification guide

• Power Meter without display

• Remote display (PM8D)

• Remote display adapter (PM8RDA)

• Hardware kit (63230-500-16) containing: — Two retainer clips — Template — DIN Slide (installed at factory) — Plug set — Terminator MCT2W

• Hardware kit (63230-500-96) containing: — Communication cable (CAB12) — Mounting screws

• Hardware kit (63230-500-163) containing:

— Com 2 RS-485 4-wire plug — Crimp connector

• Power Meter installation guides (EN, FR, ES, DE)

• Power Meter specification guide

63230-500-225A2 PowerLogicTM Series 800 Power Meter 3/2011 Chapter 1—Introduction

Features

Table 1–7: Series 800 Power Meter Features

PM810 PM820 PM850 PM870

True rms metering to the 63rd harmonic (3) (3) 

Accepts standard CT and PT inputs 

600 volt direct connection on voltage inputs 

High accuracy — 0.075% current and voltage (typical conditions) 

Min/max readings of metered data 

Input metering (five channels) with PM8M22, PM8M26, or PM8M2222 installed

Power quality readings — THD 

Downloadable firmware 

Easy setup through the integrated or remote display (password protected) 

Setpoint-controlled alarm and relay functions 

On-board alarm logging 

Wide operating temperature range: –25° to +70°C for the power meter unit

Communications:

On-board: one Modbus RS485 (2-wire)

PM8RD: one configurable Modbus RS232/RS485 (2- or 4-wire)

Active energy accuracy: ANSI C12.20 Class 0.2S and IEC 62053-22 Class 0.5S

Non-volatile clock (1) 

On-board data logging (2) 80 KB 800 KB 800 KB

Real-time harmonic magnitudes and angles (I and V):

To the 31st harmonic

To the 63rd harmonic

Waveform capture

Standard

Advanced

EN50160 evaluations

NOTE: The PM850 performs EN50160 evaluations based on standard alarms, while the PM870 performs EN50160 evaluations based on disturbance alarms.

ITI (CBEMA) and SEMI-F47 evaluations

NOTE: The PM870 performs ITI (CBEMA) and SEMI-F47 evaluations based on disturbance alarms.

Current and voltage sag/swell detection and logging — — — 

(1) The Time Clock in the PM810 with PM810LOG is non-volatile. However, it is volatile in the PM810.

The on-board data logging memory in the PM810 with PM810LOG is 80 KB, but it is not available in the PM810.

(2)

(3) The PM810 with PM810LOG and the PM820 monitor distortion to the 31st harmonic. Harmonic distortion is not

monitored in the PM810.







(3) 

—

—— 

——— 



—



—



—



—



Firmware

This user guide is written to be used with firmware version 11.xx and above. See “Identifying the Firmware Version, Model, and Serial Number” on page 70 for instructions on how to determine the firmware version. To download the latest firmware version, follow the steps below:

1. Using a web browser, go to http://www.Schneider-Electric.com.

2. Locate the Search box in the upper right corner of the home page.

3. In the Search box enter “PM8”.

4. In the drop-down box click on the selection “PM800 series”.

5. Locate the downloads area on the right side of the page and click on

6. Click on the applicable firmware version title (i.e. “PowerLogic Series 800 Power Meter

7. Download and run the “xxx.exe” firmware upgrade file provided.

“Software/Firmware”.

Firmware version 12.100”).

PowerLogicTM Series 800 Power Meter 63230-500-225A2

Chapter 1—Introduction 3/2011

63230-500-225A2 PowerLogicTM Series 800 Power Meter

DANGER

3/2011 Chapter 2—Safety Precautions

Chapter 2—Safety Precautions

HAZARD OF ELECTRIC SHOCK, EXPLOSION OR ARC FLASH

• Apply appropriate personal protective equipment (PPE) and follow safe electrical practices. For example, in the United States, see NFPA 70E.

• This equipment must only be installed and serviced by qualified electrical personnel.

• NEVER work alone.

• Before performing visual inspections, tests, or maintenance on this equipment, disconnect all sources of electric power. Assume that all circuits are live until they have been completely de-energized, tested, and tagged. Pay particular attention to the design of the power system. Consider all sources of power, including the possibility of backfeeding.

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

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

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

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

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

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

• Always use grounded external CTs for current inputs.

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

PowerLogic

Series 800 Power Meter 63230-500-225A2

Chapter 2—Safety Precautions 3/2011

63230-500-225A2 PowerLogicTM Series 800 Power Meter

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PLSD110097

3/2011 Chapter 3—Operation

Chapter 3—Operation

This section explains the features of the power meter display and the power meter setup procedures using this display. For a list of all power meter models containing an integrated display or a remote display, see Table 1 –5 on page 5.

Power Meter Display

The power meter is equipped with a large, back-lit liquid crystal display (LCD). It can display up to five lines of information plus a sixth row of menu options. Figure 3–1 shows the different parts of the power meter display.

Figure 3– 1: Power Meter Display

A. Type of measurement

B. Screen title

C. Alarm indicator

D. Maintenance icon

E. Bar chart (%)

F. Units (A, V, etc.)

G. Display more menu items

H. Menu item

I. Selected menu indicator

J. Button

K. Return to previous menu

L. Values

M. Phase

How the Buttons Work

The buttons are used to select menu items, display more menu items in a menu list, and return to previous menus. A menu item appears over one of the four buttons. Pressing a button selects the menu item and displays the menu item’s screen. When you have reached the highest menu level, a black triangle appears beneath the selected menu item. To return to the previous menu level, press the button below items in a menu list, press the button below

NOTE: Each time you read “press” in this manual, press and release the appropriate button beneath the menu item. For example, if you are asked to “Press PHASE,” you would press the button below the PHASE menu item.

###: (see Figure 3 – 1).

1;. To scroll through the menu

Changing Values

When a value is selected, it flashes to indicate that it can be modified. A value is changed by doing the following:

Menu Overview

• Press + (plus) or - (minus) to change numbers or scroll through available options.

• If you are entering more than a single-digit number, press <-- to move to the next

higher numeric position.

• To save your changes and move to the next field, press OK.

Figure 3–2 on page 12, shows the first two levels of the power meter menu. Level 1 contains all of the top level menu items. Selecting a Level 1 menu item takes you to the corresponding Level 2 menu items. Additional menu levels may be provided, depending on the specific meter features and options.

NOTE: Press ###: to scroll through all menu items on a given level.

PHASE I - DMD UNBAL

PWR (PQS) PHASE P - DMD

TRUE DISPL

V L-L (U) V L-N (V) I

MINMX AMPS (I) VOLTS (U-V) UNBAL PWR (PQS) PF HZ (F) THD V THD I

ACTIV HIST

DATE TIME LANG COMMS (COM) METER ALARM I/O PASSW TIMER ADVAN

AMPS (I)

VOLTS (U-V)

PWR (PQS)

ENERG (E)

HZ (F)

THD

MINMX

ALARM

I/O

RESET

SETUP

DIAG

HARM

METER ENERG (E) DMD MINMX MODE TIMER

CONTR

MAINT

TIMER

PM8M2222

COMM1

COMM2

PM8RD

D OUT D IN A OUT A IN

METER REG CLOCK

D OUT [Digital KY Out]

D IN [Digital In]

A OUT [Analog Out]

A IN [Analog In]

PM8M2222

PM8M2222, PM8M26, and PM8M22

V L-L (U) V L-N (V) I

V L-L (U) V L-N (V)

Wh VAh VARh INC

LEVEL 1

LEVEL 2

PowerLogic

Series 800 Power Meter 63230-500-225A2

Chapter 3—Operation 3/2011

Figure 3–2: Abbreviated List of PM800 Menu Items in IEEE (IEC) Mode

➀ Available on the PM810 only when an optional Power Meter Logging Module (PM810LOG) is installed. Available on all other PM800 Series models. ➁ Available with some models. ➂ Both IEC and IEEE modes are available. Depending on the mode selected, menu labels will be different. See “Display Mode Change” on page 24 to select the

desired mode.

➃ The PM810 has a volatile clock. The PM810 with an optional Power Meter Logging Module (PM810LOG), and all other PM800 Series models, have a non-volatile

clock.

63230-500-225A2 PowerLogicTM Series 800 Power Meter

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PLSD110218

3/2011 Chapter 3—Operation

Power Meter Setup

Power meter setup is typically performed by using the meter’s front panel display. To configure a power meter without a display, you will need a means of communication between the power meter and your computer. Additionally, you will need to install PowerLogic Meter Configuration Software or PowerLogic ION Setup Software on your computer. These can be downloaded from the Schneider’s www.Schneider-Electric.com website.

Power meter setup is performed through the meter’s maintenance (MAINT) option. Refer to Figure 3–2 on page 12. Setup features may be programmed individually or in any order. To access the Setup features, follow these steps:

SETUP MODE Access

1. Press ###: to scroll through the Level 1 menu until you see MAINT.

2. Press MAINT.

3. Press SETUP.

4. Enter your password, then press OK. The SETUP MODE screen will be displayed.

NOTE: The default password is 0000.

5. Press

After programming a feature, you may continue through the remaining features by returning to the SETUP MODE screen and pressing

Once you have selected the correct options for each setup parameter, press SAVE CHANGES? prompt appears, then press YES. The meter will reset, briefly display the meter info screen, then automatically return to the main screen.

Use the menu provided in Figure 3– 2 on page 12 to locate the setup features described in the following topics:

###: to scroll through the setup features and select the one to be programmed.

###: to scroll to additional features.

1; until the

DATE Setup

1. Perform steps 1 through 5 of the SETUP MODE Access procedure on page 11.

2. Press

3. Press DATE.

4. Enter the MONTH number.

5. Press OK.

6. Enter the DAY number.

7. Press OK.

8. Enter the YEAR number.

9. Press OK.

10. Select how the date is displayed: M/D/Y,

11. Press OK to return to the SETUP MODE

12. Press

13. To verify the new settings, press MAINT >

NOTE: The clock in the PM810 is volatile. Each time the meter resets, the PM810 returns to the default clock date/time of 12:00 AM 01-01-1980. See “Date and Time Settings” on page 69 for more information. All other PM800 Series meters have a non-volatile clock which maintains the current date and time when the meter is reset.

###: until DATE is visible.

Y/M/D, or D/M/Y).

screen.

1; to return to the main screen.

DIAG > CLOCK.

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PLSD110227

PLSD110103

PowerLogic Chapter 3—Operation 3/2011

Series 800 Power Meter 63230-500-225A2

TIME Setup

1. Perform steps 1 through 5 of the SETUP MODE Access procedure on page 11.

2. Press

3. Press TIME.

4. Enter the HOUR.

5. Press OK.

6. Enter the MIN (minutes).

7. Press OK.

8. Enter the SEC (seconds).

9. Press OK.

10. Select how the time is displayed: 24H or

11. Press OK to return to the SETUP MODE

12. Press

13. To verify the new settings, press MAINT >

NOTE: The clock in the PM810 is volatile. Each time the meter resets, the PM810 returns to the default clock date/time of 12:00 AM 01-01-1980. See “Date and Time Settings” on page 69 for more information. All other PM800 Series meters have a non-volatile clock, which maintains the current date and time when the meter is reset.

###: until TIME is visible.

AM/PM.

screen.

1; to return to the main screen.

DIAG > CLOCK.

LANG (Language) Setup

1. Perform steps 1 through 5 of the SETUP MODE Access procedure on page 11.

2. Press

3. Press LANG.

4. Select the language: ENGL (English), FREN

5. Press OK.

6. At the SETUP MODE screen, continue

7. Press YES to save the changes.

###: until LANG is visible.

(French), SPAN (Spanish), GERMN (German), or RUSSN (Russian).

programming additional setup features or

1; until you are asked to save changes.

press

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63230-500-225A2 PowerLogicTM Series 800 Power Meter

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PLSD110106

3/2011 Chapter 3—Operation

COMMS (Communications) Setup

NOTE: If you are using PowerLogic software to set up the power meter, it is recommended you set up the communications features first.

Refer to Table 3-1 for the meter’s default settings.

Table 3– 1: Communications Default Settings

Communications Setting Default

Protocol MB.RTU (Modbus RTU)

Address 1

Baud Rate 9600

Parity Even

The same procedure is used to program the settings for the COMMS, COMM 1, and COMM 2 options.

1. Perform steps 1 through 5 of the SETUP MODE Access procedure on page 11.

2. Press

3. Press COMMS (communications).

4. Select the required protocol: MB.RTU (Modbus

5. Press OK.

6. Enter the ADDR (power meter address).

7. Press OK.

8. Select the BAUD (baud rate).

9. Press OK.

10. Select the parity: EVEN, ODD, or NONE.

11. Press OK.

12. At the SETUP MODE screen, continue

13. Press YES to save the changes.

###: until COMMS (communications)

is visible.

RTU), Jbus, MB. A.8 (Modbus ASCII 8 bits), MB. A.7 (Modbus ASCII 7 bits).

programming additional setup features or

1; until you are asked to save changes.

press

METER Setup

CTs Setup

This feature allows the user to configure the CTs, PTs, system frequency, and system wiring method.

1. Perform steps 1 through 5 of the SETUP MODE Access procedure on page 11.

2. Press

3. Press METER.

4. Press CT.

5. Enter the PRIM (CT primary) number.

6. Press OK.

7. Enter the SEC. (CT secondary) number.

8. Press OK.

9. At the SETUP MODE screen, continue

10. Press YES to save the changes.

###: until METER is visible.

programming additional setup features or

1; until you are asked to save changes.

press

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PLSD110112 PLSD110109

PLSD110324

PowerLogic Chapter 3—Operation 3/2011

Series 800 Power Meter 63230-500-225A2

PTs Setup

1. Perform steps 1 through 5 of the SETUP MODE Access procedure on page 11.

2. Press

3. Press METER.

4. Press PT.

5. Enter the SCALE value: x1, x10, x100, NO PT

6. Press OK.

7. Enter the PRIM (primary) value.

8. Press OK.

9. Enter the SEC. (secondary) value.

10. Press OK.

11. At the SETUP MODE screen, continue

12. Press YES to save the changes.

###: until METER is visible.

(for direct connect).

programming additional setup features or

1; until you are asked to save changes.

press

HZ (System Frequency) Setup

1. Perform steps 1 through 5 of the SETUP MODE Access procedure on page 11.

2. Press

3. Press METER.

4. Press

5. Press HZ.

6. Select the frequency.

7. Press OK.

8. At the SETUP MODE screen, continue

9. Press YES to save the changes.

###: until METER is visible.

###: until HZ is visible.

programming additional setup features or

1; until you are asked to save changes.

press

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SYS (System Type) Setup

1. Perform steps 1 through 5 of the SETUP MODE Access procedure on page 11.

2. Press

3. Press METER.

4. Press ###: until SYS is visible.

5. Press SYS.

6. Select your system (SYS) type (D) based on

7. Press OK.

8. At the SETUP MODE screen, continue

9. Press YES to save the changes.

###: until METER is visible.

the number of wires (A), the number of CTs (B), and the number of voltage connections (either direct connect or with PT) (C).

programming additional setup features or

1; until you are asked to save changes.

press

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63230-500-225A2 PowerLogicTM Series 800 Power Meter

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PLSD110212

PLSD110311

3/2011 Chapter 3—Operation

ALARM (Alarms) Setup

There is an extensive list of meter error conditions which can be monitored and cause an alarm.

1. Perform steps 1 through 5 of the SETUP MODE Access procedure on page 11.

2. Press

3. Press ALARM.

4. Press

5. Press EDIT.

6. Select to ENABL (enable) or DISAB (disable)

7. Press OK.

8. Select the PR (priority): NONE, HIGH, MED, or

9. Press OK.

10. Select how the alarm values are displayed:

11. Enter the PU VALUE (pick-up value).

12. Press OK.

13. Enter the PU DELAY (pick-up delay).

14. Press OK.

15. Enter the DO VALUE (drop-out value).

16. Press OK.

17. Enter the DO DELAY (drop-out delay).

18. Press OK.

19. Press

20. Press

21. At the SETUP MODE screen, continue

22. Press YES to save the changes.

###: until ALARM is visible.

<- or -> to select the alarm option you

want to edit.

the alarm.

LOW.

ABSOL (absolute value) or RELAT (percentage relative to the running average).

1; to return to the alarm summary

screen.

1; to return to the SETUP MODE screen.

programming additional setup features or

1; until you are asked to save changes.

press

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PLSD110221

PLSD110224

PowerLogic Chapter 3—Operation 3/2011

Series 800 Power Meter 63230-500-225A2

I/O (Input/Output) Setup

1. Perform steps 1 through 5 of the SETUP MODE Access procedure on page 11.

2. Press

3. Press I/O.

4. Press D OUT for digital output or D IN for digital

5. Press EDIT.

6. Select the I/O mode based on the I/O type and

7. Depending on the mode selected, the power

8. Press OK.

9. Select EXT. (externally controlled via

10. Press

11. At the SETUP MODE screen, continue

12. Press YES to save the changes.

###: until I/O is visible.

input, or press A OUT for analog output or A IN for analog input. Use the ###: button to scroll through these selections.

NOTE: Analog inputs and outputs are available only with the PM8222 option module.

the user selected mode: NORM., LATCH, TIMED, PULSE, or END OF.

meter will prompt you to enter the pulse weight, timer, and control.

communications) or ALARM (controlled by an alarm).

1; to return to the SETUP MODE screen.

programming additional setup features or

1; until you are asked to save changes.

press

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PASSW (Password) Setup

1. Perform steps 1 through 5 of the SETUP MODE

2. Press

3. Press PASSW.

4. Enter the SETUP password.

5. Press OK.

6. Enter the DIAG (diagnostics) password.

7. Press OK.

8. Enter the ENERG (energy reset) password.

9. Press OK.

10. Enter the MN/MX (minimum/maximum reset)

11. Press OK.

12. At the SETUP MODE screen, continue

13. Press YES to save the changes.

Access procedure on page 11.

###: until PASSW (password) is visible.

password.

programming additional setup features or

1; until you are asked to save changes.

press

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63230-500-225A2 PowerLogicTM Series 800 Power Meter

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PLSD110257

PLSD110203

3/2011 Chapter 3—Operation

TIMER (Operating Time Threshold) Setup

1. Perform steps 1 through 5 of the SETUP MODE Access procedure on page 11.

2. Press

###: until TIMER is visible.

3. Press TIMER.

4. Enter the 3-phase current average.

NOTE: The power meter begins counting the operating time whenever the readings are equal to or above the average.

5. Press OK.

6. At the SETUP MODE screen, continue programming additional setup features or

1; until you are asked to save changes.

press

7. Press YES to save the changes.

ADVAN (Advanced) Power Meter Setup Features

The Advanced Feature set contains several items which need to be programmed. To access these features, follow these steps:

After programming a feature, you may continue through the remaining features by returning to the SETUP MODE screen and pressing ###: to scroll to additional features.

until the

ROT (Phase Rotation) Setup

1. Perform steps 1 through 5 of the SETUP MODE Access procedure on page 11.

2. Press

3. Press ADVAN.

4. Press ###: until ROT (phase rotation) is visible.

5. Press ROT.

6. Select the phase rotation: ABC or CBA.

7. Press OK.

8. At the SETUP MODE screen, continue

9. Press YES to save the changes.

###: until ADVAN (advanced setup) is

visible.

programming additional setup features or

1; until you are asked to save changes.

press

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PLSD110197

PLSD110206

PLSD110209

PowerLogic Chapter 3—Operation 3/2011

Series 800 Power Meter 63230-500-225A2

E-INC (Incremental Energy Interval) Setup

1. Perform steps 1 through 5 of the SETUP MODE Access procedure on page 11.

2. Press

###: until ADVAN (advanced setup) is

visible.

3. Press ADVAN.

4. Press

###: until E-INC (incremental energy) is

visible.

5. Press E-INC.

6. Enter the INTVL (interval). Range is 00 to 1440.

7. Press OK.

8. At the SETUP MODE screen, continue programming additional setup features or

1; until you are asked to save changes.

press

9. Press YES to save the changes.

THD Calculation Setup

1. Perform steps 1 through 5 of the SETUP MODE Access procedure on page 11.

2. Press

###: until ADVAN (advanced setup) is

visible.

3. Press ADVAN.

4. Press

###: until THD is visible.

5. Press THD.

6. Select the THD calculation: FUND or RMS.

7. Press OK.

8. At the SETUP MODE screen, continue programming additional setup features or

1; until you are asked to save changes.

press

9. Press YES to save the changes.

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VAR/PF Convention Setup

1. Perform steps 1 through 5 of the SETUP MODE Access procedure on page 11.

2. Press

###: until ADVAN (advanced setup) is

visible.

3. Press ADVAN.

4. Press

###: until PF is visible.

5. Press PF.

6. Select the Var/PF convention: IEEE or IEC.

7. Press OK.

8. At the SETUP MODE screen, continue programming additional setup features or

1; until you are asked to save changes.

press

9. Press YES to save the changes.

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63230-500-225A2 PowerLogicTM Series 800 Power Meter

PLSD110200

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PLSD110215

PLSD110231

3/2011 Chapter 3—Operation

Lock Resets Setup

1. Perform steps 1 through 5 of the SETUP MODE Access procedure on page 11.

2. Press

###: until ADVAN (advanced setup) is

visible.

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3. Press ADVAN.

4. Press

###: until LOCK is visible.

5. Press LOCK.

6. Select Y (yes) or N (no) to enable or disable resets for PK.DMD, ENERG, MN/MX, and METER.

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7. Press OK.

8. At the SETUP MODE screen, continue programming additional setup features or

1; until you are asked to save changes.

press

9. Press YES to save the changes.

Alarm Backlight Setup

1. Perform steps 1 through 5 of the SETUP MODE Access procedure on page 11.

2. Press

3. Press ADVAN.

4. Press ###: until BLINK is visible.

5. Press BLINK.

6. Enter ON or OFF.

7. Press OK.

8. At the SETUP MODE screen, continue

9. Press YES to save the changes.

###: until ADVAN (advanced setup) is

visible.

programming additional setup features or

1; until you are asked to save changes.

press

Bar Graph Setup

1. Perform steps 1 through 5 of the SETUP MODE Access procedure on page 11.

2. Press

###: until ADVAN (advanced setup) is

visible.

3. Press ADVAN.

4. Press

###: until BARGR is visible.

5. Press BARGR.

6. Press AMPS or PWR.

7. Select AUTO or MAN. If MAN is selected, press OK and enter the %CT*PT and KW (for PWR) or the %CT and A (for AMPS).

8. Press OK.

9. At the SETUP MODE screen, continue programming additional setup features or

1; until you are asked to save changes.

press

10. Press YES to save the changes.

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PLSD110232

PowerLogic Chapter 3—Operation 3/2011

Series 800 Power Meter 63230-500-225A2

PQ Advanced Evaluation Setup

1. Perform steps 1 through 5 of the SETUP MODE Access procedure on page 11.

2. Press

3. Press ADVAN.

4. Press

5. Press PQADV.

6. Select ON.

7. Press OK.

8. Change the nominal voltage (NOM V) value if

9. Press OK to return to the SETUP MODE

10. At the SETUP MODE screen, continue

11. Press YES to save your changes and reset the

###: until ADVAN (advanced setup) is

visible.

###: until PQADV is visible.

desired (the default is 230).

screen.

programming additional setup features or

1; until you are asked to save changes.

press

power meter.

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Power Demand Configuration Setup

1. Perform steps 1 through 5 of the SETUP MODE Access procedure on page 11.

2. Press

3. Press ADVAN.

4. Press ###: until DMD is visible.

5. Press DMD (P-DMD, I-DMD).

6. Select the demand configuration. Choices are

7. Press OK.

8. Enter the INTVL (interval) and press OK.

9. Enter the SUB-I (sub-interval) and press OK.

10. At the SETUP MODE screen, continue

11. Press YES to save the changes.

###: until ADVAN (advanced setup) is

visible.

COMMS, RCOMM, CLOCK, RCLCK, IENGY, THERM, SLIDE, BLOCK, RBLCK, INPUT, and RINPUT.

programming additional setup features or

1; until you are asked to save changes.

press

63230-500-225A2 PowerLogicTM Series 800 Power Meter

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PLSD110280

3/2011 Chapter 3—Operation

Power Meter Resets

The Power Meter Resets Feature set contains several items. After resetting a feature, you may continue through the remaining features by returning to the RESET MODE screen and pressing press 1; until the display returns to the main screen.

Initialize the Power Meter

Initializing the power meter resets the energy readings, minimum/maximum values, and operating times. To initialize the power meter, follow these steps:

1. Press ###: to scroll through the Level 1 menu

2. Press MAINT.

3. Press RESET.

4. Press

5. Press METER.

6. Enter the password (the default is 0000).

7. Press YES to initialize the power meter and to

8. At the RESET MODE screen, continue

NOTE: We recommend initializing the power meter after you make changes to any of the following: CTs, PTs, frequency, or system type.

###: to scroll to additional features. Once you have reset the specific features,

until you see MAINT.

###: until METER is visible.

return to the RESET MODE screen.

resetting additional features or press you return to the main screen.

1; until

Accumulated Energy Readings Reset

1. Press ###: to scroll through the Level 1 menu

until you see MAINT.

2. Press MAINT.

3. Press RESET.

4. Press

5. Press ENERG.

6. Enter the password (the default is 0000).

7. Press YES to reset the accumulated energy

###: until ENERG is visible.

readings and to return to the RESET MODE screen.

PLSD110281

PLSD110282

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PLSD110283

PowerLogic Chapter 3—Operation 3/2011

Series 800 Power Meter 63230-500-225A2

Accumulated Demand Readings Reset

1. Press ###: to scroll through the Level 1 menu until you see MAINT.

2. Press MAINT.

3. Press RESET.

4. Press

5. Press DMD.

6. Enter the password (the default is 0000).

7. Press YES to reset the accumulated demand

###: until DMD is visible.

readings and to return to the RESET MODE screen.

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Minimum/Maximum Values Reset

1. Press ###: to scroll through the Level 1 menu until you see MAINT.

2. Press MAINT.

3. Press RESET.

4. Press

5. Press MINMX.

6. Enter the password (the default is 0000).

7. Press YES to reset the minimum/maximum

###: until MINMX is visible.

values and to return to the RESET MODE screen.

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Display Mode Change

1. Press ###: to scroll through the Level 1 menu until you see MAINT.

2. Press MAINT.

3. Press RESET.

4. Press

5. Press MODE.

6. Press IEEE (default for Square D branded

NOTE: Resetting the mode changes the menu labels, power factor conventions, and THD calculations to match the standard mode selected. To customize the mode changes, see the register list.

###: until MODE is visible.

power meters) or IEC (default for Schneider Electric branded power meters) depending on the operating mode you want to use.

63230-500-225A2 PowerLogicTM Series 800 Power Meter

PLSD110284

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PLSD110191

3/2011 Chapter 3—Operation

Accumulated Operating Time Reset

Power Meter Diagnostics

1. Press

2. Press MAINT.

3. Press RESET.

4. Press

5. Press TIMER.

6. Enter the password (the default is 0000).

7. Press YES to reset the accumulated operating

To view the power meter’s model, firmware version, serial number, read and write registers, or check the health status, you must access the HEALTH STATUS screen.

After viewing a feature, you may continue through the remaining features by returning to the HEALTH STATUS screen and selecting one of the other options.

Once you have viewed the specific features, press screen.

###: to scroll through the Level 1 menu

until you see MAINT.

###: until TIMER is visible.

time and to return to the RESET MODE screen.

NOTE: The accumulated days, hours, and minutes of operation are reset to zero when you press YES.

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HEALTH STATUS screen

NOTE: The wrench icon and the health status code display when a health problem is detected. For code 1, set up the Date/Time (see “DATE Setup” and “TIME Setup” on pages 11 and 12). For other codes, contact technical support.

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PLSD110094d

PLSD110194

PLSD110327

PowerLogic Chapter 3—Operation 3/2011

Series 800 Power Meter 63230-500-225A2

View the Meter Information

1. Press ###: to scroll through the Level 1 menu until you see MAINT.

2. Press MAINT.

3. Press DIAG (diagnostics) to open the HEALTH STATUS screen.

4. On the HEALTH STATUS screen, press METER (meter information).

5. View the meter information.

6. Press

7. Press

###: to view more meter information. 1; to return to the HEALTH STATUS

screen.

Read and Write Registers

1. Press ###: to scroll through the Level 1 menu until you see MAINT.

2. Press MAINT.

3. Press DIAG (diagnostics) to open the HEALTH STATUS screen.

4. On the HEALTH STATUS screen, Press REG (register).

5. Enter the password (the default is 0000).

6. Enter the REG. (register) number that contains the data you want to monitor.

The register content will be displayed in both HEX (hexadecimal) and DEC (decimal) values.

7. Press

NOTE: For more information about using registers, see Appendix C—Using the Command Interface on page 83.

1; to return to the HEALTH STATUS

screen.

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View the Meter Date and TIme

1. Press ###: to scroll through the Level 1 menu until you see MAINT.

2. Press MAINT.

3. Press DIAG (diagnostics) to open the HEALTH STATUS screen.

4. On the HEALTH STATUS screen, press CLOCK (current date and time).

5. View the date and time.

6. Press

1; to return to the HEALTH STATUS

screen.

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63230-500-225A2 PowerLogicTM Series 800 Power Meter 3/2011 Chapter 4—Metering Capabilities

Chapter 4—Metering Capabilities

Real-Time Readings

The power meter measures currents and voltages, and reports in real time the rms values for all three phases and neutral. In addition, the power meter calculates power factor, real power, reactive power, and more.

Table 4–1 lists some of the real-time readings that are updated every second along with their reportable ranges.

Table 4–1: One-second, Real-time Readings

Real-time Readings Reportable Range

Current

Per-Phase

Neutral

3-Phase Average

% Unbalance

Voltage

Line-to-Line, Per-Phase

Line-to-Line, 3-Phase Average

Line-to-Neutral, Per-Phase

Line-to-Neutral, 3-Phase Average

% Unbalance

Real Power

Per-Phase

3-Phase Total

Reactive Power

Per-Phase

3-Phase Total

Apparent Power

Per-Phase

3-Phase Total

Power Factor (True)

Per-Phase

3-Phase Total

Power Factor (Displacement)

Per-Phase

3-Phase Total

Frequency

45–65 Hz

350–450 Hz

0 to 32,767 A

0 to 100.0%

0 to 1,200 kV

0 to 100.0%

0 to ± 3,276.70 MW

0 to ± 3,276.70 MVAR

0 to ± 3,276.70 MVA

–0.002 to 1.000 to +0.002

23.00 to 67.00 Hz

350.00 to 450.00 Hz

PowerLogic Chapter 4—Metering Capabilities 3/2011

Series 800 Power Meter 63230-500-225A2

Min/Max Values for Real-time Readings

When certain one-second real-time readings reach their highest or lowest value, the power meter saves the values in its non-volatile memory. These values are called the minimum and maximum (min/max) values.

The power meter stores the min/max values for the current month and previous month. After the end of each month, the power meter moves the current month’s min/max values into the previous month’s register space and resets the current month’s min/max values. The current month’s min/max values can be reset manually at any time using the power meter display or PowerLogic software. After the min/max values are reset, the power meter records the date and time. The real-time readings evaluated are:

• Min/Max Voltage L-L • Min/Max Reactive Power Total

• Min/Max Voltage L-N • Min/Max Apparent Power Total

• Min/Max Current • Min/Max THD/thd Voltage L-L

• Min/Max Voltage L-L, Unbalance • Min/Max THD/thd Voltage L-N

• Min/Max Voltage L-N, Unbalance • Min/Max THD/thd Current

• Min/Max Total True Power Factor • Min/Max Frequency

• Min/Max Total Displacement Power

Factor

• Min/Max Real Power Total • Min/Max Current, Neutral

NOTE: Min/Max values for Vng and In are not available from the display. Use the display to read registers (see “Read and Write Registers” on page 26) or use PowerLogic software.

For each min/max value listed above, the power meter records the following attributes:

• Date/Time of minimum value • Date/Time of maximum value

• Minimum value • Maximum value

• Phase of recorded minimum value • Phase of recorded maximum value

• Min/Max Voltage N-ground

(see the note below)

NOTE: Phase of recorded min/max only applies to multi-phase quantities.

NOTE: There are two ways to view the min/max values. 1- Use the power meter display to view the min/max values since the meter was last reset. 2- Use PowerLogic software to view a table with the instantaneous min/max values for the current and previous months.

Power Factor Min/Max Conventions

All running min/max values, except for power factor, are arithmetic minimum and maximum values. For example, the minimum phase A-B voltage is the lowest value in the range 0 to 1200 kV that has occurred since the min/max values were last reset. In contrast, because the power factor’s midpoint is unity (equal to one), the power factor min/max values are not true arithmetic minimums and maximums. Instead, the minimum value represents the measurement closest to -0 on a continuous scale for all real-time readings -0 to 1.00 to +0. The maximum value is the measurement closest to +0 on the same scale.

Figure 4–1 shows the min/max values in a typical environment in which a positive power flow is assumed. In the figure, the minimum power factor is -0.7 (lagging) and the maximum is 0.8 (leading). Note that the minimum power factor need not be lagging, and the maximum power factor need not be leading. For example, if the power factor values ranged from

-0.75 to -0.95, then the minimum power factor would be -0.75 (lagging) and the maximum

power factor would be -0.95 (lagging). Both would be negative. Likewise, if the power factor ranged from +0.9 to +0.95, the minimum would be +0.95 (leading) and the maximum would be +0.90 (leading). Both would be positive in this case.

63230-500-225A2 PowerLogicTM Series 800 Power Meter

1.00

-0

Minimum

Power Factor

-.7 (lagging)

Range of Power

Factor Value

Unity

Maximum

Power Factor

.8 (leading)

Lead

(+)

Lag

(–)

NOTE: Assumes a positive power flow

Real Power In

watts negative (–) vars positive (+) power factor (–)

watts positive (+) vars positive (+) power factor (+)

watts negative (–) vars negative (–) power factor (–)

watts positive (+) vars negative (–) power factor (+)

IEC Power Factor Sign Convention

Reverse Power Flow

Normal

Power Flow

Reactive Power In

Quadrant

watts negative (–) vars positive (+) power factor (+)

watts positive (+) vars positive (+) power factor (–)

watts negative (–) vars negative (–) power factor (–)

watts positive (+) vars negative (–) power factor (+)

Reactive Power In

Real Power In

IEEE Power Factor Sign Convention

Reverse Power Flow

Normal

Power Flow

Quadrant

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The power factor sign is visible next to the power factor reading.

3/2011 Chapter 4—Metering Capabilities

Figure 4–1: Power factor min/max example

An alternate power factor storage method is also available for use with analog outputs and trending. See “Using the Command Interface” on page 83 for the applicable registers.

Power Factor Sign Conventions

The power meter can be set to one of two power factor sign conventions: IEEE or IEC. The Series 800 Power Meter defaults to the IEEE power factor sign convention. Figure 4– 2 illustrates the two sign conventions. For instructions on changing the power factor sign convention, refer to “ADVAN (Advanced) Power Meter Setup Features” on page 19.

Figure 4–2: Power factor sign convention

Figure 4–3: Power Factor Display Example

PowerLogic

Series 800 Power Meter 63230-500-225A2

Chapter 4—Metering Capabilities 3/2011

Demand Readings

The power meter provides a variety of demand readings, including coincident readings and predicted demands. Table 4–2 lists the available demand readings and their reportable ranges.

Table 4–2: Demand Readings

Demand Readings Reportable Range

Demand Current, Per-Phase, 3Ø Average, Neutral

Last Complete Interval

Peak

Average Power Factor (True), 3Ø Total

Last Complete Interval

Coincident with kW Peak

Coincident with kVAR Peak

Coincident with kVA Peak

Demand Real Power, 3Ø Total

Last Complete Interval

Predicted

Peak

Coincident kVA Demand

Coincident kVAR Demand

Demand Reactive Power, 3Ø Total

Last Complete Interval

Predicted

Peak

Coincident kVA Demand

Coincident kW Demand

Demand Apparent Power, 3Ø Total

Last Complete Interval

Predicted

Peak

Coincident kW Demand

Coincident kVAR Demand

0 to 32,767 A

–0.002 to 1.000 to +0.002

0 to ± 3276.70 MW

0 to ± 3276.70 MVA

0 to ± 3276.70 MVAR

0 to ± 3276.70 MVA

0 to ± 3276.70 MW

0 to ± 3276.70 MVA

0 to ± 3276.70 MW

0 to ± 3276.70 MVAR

Demand Power Calculation Methods

Demand power is the energy accumulated during a specified period divided by the length of that period. How the power meter performs this calculation depends on the method you select. To be compatible with electric utility billing practices, the power meter provides the following types of demand power calculations:

• Block Interval Demand

• Synchronized Demand

• Thermal Demand

The default demand calculation is set to sliding block with a 15 minute interval. You can set up any of the demand power calculation methods using PowerLogic software.

63230-500-225A2 PowerLogicTM Series 800 Power Meter

PLSD110131

Demand value is the average for the last completed interval

Time (sec)

Time (min)

Calculation updates every 15 or 60 seconds

Calculation updates at the end of the interval

Calculation updates at the end of the sub-interval (5 minutes)

Sliding Block

Fixed Block

Rolling Block

15-minute interval

15-minute interval 15-min

15-minute interval

3/2011 Chapter 4—Metering Capabilities

Block Interval Demand

In the block interval demand method, you select a “block” of time that the power meter uses for the demand calculation. You choose how the power meter handles that block of time (interval). Three different modes are possible:

• Sliding Block. In the sliding block interval, you select an interval from 1 to 60 minutes

(in 1-minute increments). If the interval is between 1 and 15 minutes, the demand calculation updates every 15 seconds. If the interval is between 16 and 60 minutes, the demand calculation updates every 60 seconds. The power meter displays the demand value for the last completed interval.

• Fixed Block. In the fixed block interval, you select an interval from 1 to 60 minutes (in

1-minute increments). The power meter calculates and updates the demand at the end of each interval.

• Rolling Block. In the rolling block interval, you select an interval and a sub-interval.

The sub-interval must divide evenly into the interval. For example, you might set three 5-minute sub-intervals for a 15-minute interval. Demand is updated at each sub- interval. The power meter displays the demand value for the last completed interval.

Figure 4–4 below illustrates the three ways to calculate demand power using the block method. For illustration purposes, the interval is set to 15 minutes.

Figure 4–4: Block Interval Demand Examples

15 30 45

60 . . .

15 30 45

20 35 4025

30 45

PowerLogic Chapter 4—Metering Capabilities 3/2011

Series 800 Power Meter 63230-500-225A2

Synchronized Demand

The demand calculations can be synchronized by accepting an external pulse input, a command sent over communications, or by synchronizing to the internal real-time clock.

• Input Synchronized Demand. You can set up the power meter to accept an input such

as a demand synch pulse from an external source. The power meter then uses the same time interval as the other meter for each demand calculation. You can use the standard digital input installed on the meter to receive the synch pulse. When setting up this type of demand, you select whether it will be input-synchronized block or inputsynchronized rolling block demand. The rolling block demand requires that you choose a sub-interval.

• Command Synchronized Demand. Using command synchronized demand, you can

synchronize the demand intervals of multiple meters on a communications network. For example, if a PLC input is monitoring a pulse at the end of a demand interval on a utility revenue meter, you could program the PLC to issue a command to multiple meters whenever the utility meter starts a new demand interval. Each time the command is issued, the demand readings of each meter are calculated for the same interval. When setting up this type of demand, you select whether it will be command-synchronized block or command-synchronized rolling block demand. The rolling block demand requires that you choose a sub-interval. See Appendix C—Using the Command Interface on page 83 for more information.

• Clock Synchronized Demand (Requires PM810LOG). You can synchronize the

demand interval to the internal real-time clock in the power meter. This enables you to synchronize the demand to a particular time, typically on the hour. The default time is 12:00 am. If you select another time of day when the demand intervals are to be synchronized, the time must be in minutes from midnight. For example, to synchronize at 8:00 am, select 480 minutes. When setting up this type of demand, you select whether it will be clock-synchronized block or clock-synchronized rolling block demand. The rolling block demand requires that you choose a sub-interval.

Thermal Demand

Demand Current

The thermal demand method calculates the demand based on a thermal response, which mimics thermal demand meters. The demand calculation updates at the end of each interval. You select the demand interval from 1 to 60 minutes (in 1-minute increments). In Figure 4–5 the interval is set to 15 minutes for illustration purposes.

Figure 4–5: Thermal Demand Example

The interval is a window of time that moves across the timeline.

99%

90%

Last completed demand interval

% of Load

Time

(minutes)

15-minute

interval

15-minute

interval

Calculation updates at the end of each interval

The power meter calculates demand current using the thermal demand method. The default interval is 15 minutes, but you can set the demand current interval between 1 and 60 minutes in 1-minute increments.

63230-500-225A2 PowerLogicTM Series 800 Power Meter

PLSD110137

15-minute interval

Predicted demand if load is added during interval; predicted demand increases to reflect increase demand

Predicted demand if no load is added.

Time

Change in Load

Demand for last completed interval

Beginning of interval

Predicted demand is updated every second.

Partial Interval Demand

3/2011 Chapter 4—Metering Capabilities

Predicted Demand

The power meter calculates predicted demand for the end of the present interval for kW, kVAR, and kVA demand. This prediction takes into account the energy consumption thus far within the present (partial) interval and the present rate of consumption. The prediction is updated every second.

Figure 4–6 illustrates how a change in load can affect predicted demand for the interval.

Figure 4–6: Predicted Demand Example

1:00 1:06 1:15

Peak Demand

In non-volatile memory, the power meter maintains a running maximum for the kWD, kVARD, and kVAD power values, called “peak demand.” The peak for each value is the highest average reading since the meter was last reset. The power meter also stores the date and time when the peak demand occurred. In addition to the peak demand, the power meter also stores the coinciding average 3-phase power factor. The average 3-phase power factor is defined as “demand kW/demand kVA” for the peak demand interval. Table 4–2 on page 30 lists the available peak demand readings from the power meter.

You can reset peak demand values from the power meter display. From the Main Menu, select MAINT > RESET > DMD. You can also reset the values over the communications link by using software.

NOTE: You should reset peak demand after changes to basic meter setup, such as CT ratio or system type.

The power meter also stores the peak demand during the last incremental energy interval. See “Energy Readings” on page 35 for more about incremental energy readings.

Generic Demand

The power meter can perform any of the demand calculation methods, described earlier in this chapter, on up to 10 quantities that you choose using PowerLogic software. For generic demand, do the following:

• Select the demand calculation method (thermal, block interval, or synchronized).

• Select the demand interval (from 5–60 minutes in 1–minute increments) and select

the demand sub-interval (if applicable).

• Select the quantities on which to perform the demand calculation. You must also

select the units and scale factor for each quantity.

For each quantity in the demand profile, the power meter stores four values:

• Partial interval demand value

• Last completed demand interval value

• Minimum values (date and time for each is also stored)

• Peak demand value (date and time for each is also stored)

watts

watt-hours

pulse

----------------------------

3600 seconds

hour

-------------------------------------



pulse

second

-------------------

=

PowerLogic Chapter 4—Metering Capabilities 3/2011

Series 800 Power Meter 63230-500-225A2

You can reset the minimum and peak values of the quantities in a generic demand profile by using one of two methods:

• Use PowerLogic software, or

• Use the command interface.

Command 5115 resets the generic demand profile. See Appendix C—Using the

Command Interface on page 83 for more about the command interface.

Input Metering Demand

The power meter has five input pulse metering channels, but only one digital input. Digital inputs can be added by installing one or more option modules (PM8M22, PM8M26, or PM8M2222). The input pulse metering channels count pulses received from one or more digital inputs assigned to that channel. Each channel requires a consumption pulse weight, consumption scale factor, demand pulse weight, and demand scale factor. The consumption pulse weight is the number of watt-hours or kilowatt-hours per pulse. The consumption scale factor is a factor of 10 multiplier that determines the format of the value. For example, if each incoming pulse represents 125 Wh, and you want consumption data in watt-hours, the consumption pulse weight is 125 and the consumption scale factor is zero. The resulting calculation is 125 x 10 the consumption data in kilowatt-hours, the calculation is 125 x 10 kilowatt-hours per pulse.Time must be taken into account for demand data; so you begin by calculating demand pulse weight using the following formula:

, which equals 125 watt-hours per pulse. If you want

-3

, which equals 0.125

If each incoming pulse represents 125 Wh, using the formula above you get 450,000 watts. If you want demand data in watts, the demand pulse weight is 450 and the demand scale factor is three. The calculation is 450 x 10 demand data in kilowatts, the calculation is 450 x 10

, which equals 450,000 watts. If you want the

, which equals 450 kilowatts.

NOTE: The power meter counts each input transition as a pulse. Therefore, an input transition of OFF-to-ON and ON-to-OFF will be counted as two pulses. For each channel, the power meter maintains the following information:

• Total consumption

• Last completed interval demand—calculated demand for the last completed interval.

• Partial interval demand—demand calculation up to the present point during the interval.

• Peak demand—highest demand value since the last reset of the input pulse demand.

The date and time of the peak demand is also saved.

• Minimum demand—lowest demand value since the last reset of the input pulse

demand. The date and time of the minimum demand is also saved.

To use the channels feature, first use the display to set up the digital inputs (see “I/O (Input/Output) Setup” on page 18). Then using PowerLogic software, you must set the I/O operating mode to Normal and set up the channels. The demand method and interval that you select applies to all channels.

63230-500-225A2 PowerLogicTM Series 800 Power Meter 3/2011 Chapter 4—Metering Capabilities

Energy Readings

The power meter calculates and stores accumulated energy values for real and reactive energy (kWh and kVARh) both into and out of the load, and also accumulates absolute apparent energy. Table 4–3 lists the energy values the power meter can accumulate.

Table 4–3: Energy Readings

Energy Reading, 3-Phase Reportable Range Shown on the Display

Accumulated Energy

Real (Signed/Absolute)

Reactive (Signed/Absolute)

Real (In)

Real (Out)

Reactive (In)

Reactive (Out)

Apparent

Accumulated Energy, Conditional

Real (In)

Real (Out)

Reactive (In)

Reactive (Out)

Apparent

Accumulated Energy, Incremental

Real (In)

Real (Out)

Reactive (In)

Reactive (Out)

Apparent

Reactive Energy

Quadrant 1

Quadrant 2

Quadrant 3

Quadrant 4

➀ Not shown on the power meter display.

-9,999,999,999,999,999 to 9,999,999,999,999,999 Wh

-9,999,999,999,999,999 to 9,999,999,999,999,999 VARh

0 to 9,999,999,999,999,999 Wh

0 to 9,999,999,999,999,999 VARh

0 to 9,999,999,999,999,999 VAh

0 to 9,999,999,999,999,999 Wh

0 to 9,999,999,999,999,999 VARh

0 to 9,999,999,999,999,999 VAh

0 to 999,999,999,999 Wh

0 to 999,999,999,999 VARh

0 to 999,999,999,999 VAh

0 to 999,999,999,999 VARh

0000.000 kWh to 99,999.99 MWh

and

0000.000 to 99,999.99 MVARh

These values not shown on the display. Readings are obtained only through the communications link.

The power meter can accumulate the energy values shown in Table 4– 3 in one of two modes: signed or unsigned (absolute). In signed mode, the power meter considers the direction of power flow, allowing the magnitude of accumulated energy to increase and decrease. In unsigned mode, the power meter accumulates energy as a positive value, regardless of the direction of power flow. In other words, the energy value increases, even during reverse power flow. The default accumulation mode is unsigned.

You can view accumulated energy from the display. The resolution of the energy value will automatically change through the range of 000.000 kWh to 000,000 MWh (000.000 kVAh to 000,000 MVARh), or it can be fixed. See Appendix C—Using the Command Interface on page 83 for the contents of the registers.

For conditional accumulated energy readings, you can set the real, reactive, and apparent energy accumulation to the communications link using a command, or from a digital input change. For example, you may want to track accumulated energy values during a particular process that is controlled by a PLC. The power meter stores the date and time of the last reset of conditional energy in non-volatile memory.

OFF or ON when a particular condition occurs. You can do this over

PLSD110171

watts negative (–) vars positive (+)

watts positive (+) vars positive (+)

watts negative (–) vars negative (–)

watts positive (+) vars negative (–)

Reactive Power In

Real Power In

Reverse Power Flow

Normal Power Flow

Quadrant

PowerLogic

Series 800 Power Meter 63230-500-225A2

Chapter 4—Metering Capabilities 3/2011

The power meter also provides an additional energy reading that is only available over the communications link:

• Four-quadrant reactive accumulated energy readings. The power meter

accumulates reactive energy (kVARh) in four quadrants as shown in Figure 4 – 7. The registers operate in unsigned (absolute) mode in which the power meter accumulates energy as positive.

Figure 4– 7: Reactive energy accumulates in four quadrants

Energy-Per-Shift (PM810 with PM810LOG)

The energy-per-shift feature allows the power meter to group energy usage based on three groups: 1st shift, 2nd shift, and 3rd shift. These groups provide a quick, historical view of energy usage and energy cost during each shift. All data is stored in non-volatile memory.

Table 4–4: Energy-per-shift recorded values

Category Recorded Values

Time Scales

Energy

Energy Cost

User Configuration

Configuration

The start time of each shift is configured by setting registers using the display or by using PowerLogic software. Table 4-5 summarizes the quantities needed to configure energyper-shift using register numbers.

• Today

• Yesterday

• This Week

• Last Week

• This Month

• Last Month

•Real

• Apparent

• Today

• Yesterday

• This Week

• Last Week

• This Month

• Last Month

• Meter Reading Date

• Meter Reading Time of Day

• 1st Day of the Week

63230-500-225A2 PowerLogicTM Series 800 Power Meter

Total rms

100%

thd =

3/2011 Chapter 4—Metering Capabilities

Table 4–5: Energy-per-shift recorded values

Quantity Register Number(s) Description

For each shift, enter the minutes from midnight at which the shift starts.

Shift Start Time

Cost per kWHr

Monetary Scale Factor 16177

• 1st shift: 16171

• 2nd shift: 16172

• 3rd shift: 16173

• 1st shift: 16174

• 2nd shift: 16175

• 3rd shift: 16176

Defaults:

1st shift = 420 minutes (7:00 am)

2nd shift = 900 minutes (3:00 pm)

3rd shift = 1380 minutes (11:00 pm)

Enter the cost per kWHr for each shift.

The scale factor multiplied by the monetary units to determine the energy cost.

Values: -3 to 3

Default: 0

Power Analysis Values

The power meter provides a number of power analysis values that can be used to detect power quality problems, diagnose wiring problems, and more. Table 4 – 6 on page 38 summarizes the power analysis values.

• THD. Total Harmonic Distortion (THD) is a quick measure of the total distortion present

in a waveform and is the ratio of harmonic content to the fundamental. It provides a general indication of the “quality” of a waveform. THD is calculated for both voltage and current. The power meter uses the following equation to calculate THD, where H is the harmonic distortion:

THD =

100%

• thd. An alternate method for calculating Total Harmonic Distortion, used widely in

Europe. It considers the total harmonic current and the total rms content rather than fundamental content in the calculation. The power meter calculates thd for both voltage and current. The power meter uses the following equation to calculate THD, where H is the harmonic distortion:

• Displacement Power Factor. Power factor (PF) represents the degree to which

voltage and current coming into a load are out of phase. Displacement power factor is based on the angle between the fundamental components of current and voltage.

• Harmonic Values. Harmonics can reduce the capacity of the power system. The power

meter determines the individual per-phase harmonic magnitudes and angles for all currents and voltages through the:

— 31st harmonic (PM810 with PM810Log, and PM820) or

— 63rd harmonic (PM850, PM870)

The harmonic magnitudes can be formatted as either a percentage of the fundamental (default), a percentage of the rms value, or the actual rms value. Refer to “Operation with PQ Advanced Enabled” on page 99 for information on how to configure harmonic calculations.

PowerLogic

Series 800 Power Meter 63230-500-225A2

Chapter 4—Metering Capabilities 3/2011

Table 4–6: Power Analysis Values

Value Reportable Range

THD—Voltage, Current

3-phase, per-phase, neutral 0 to 3,276.7%

thd—Voltage, Current

3-phase, per-phase, neutral 0 to 3,276.7%

Fundamental Voltages (per phase)

Magnitude 0 to 1,200 kV

Angle 0.0 to 359.9°

Fundamental Currents (per phase)

Magnitude 0 to 32,767 A

Angle 0.0 to 359.9°

Miscellaneous

Displacement P.F. (per phase, 3-phase) –0.002 to 1.000 to +0.002

Phase Rotation ABC or CBA

Unbalance (current and voltage) ➀ 0.0 to 100.0%

Individual Current and Voltage Harmonic Magnitudes ➁ 0 to 327.67%

Individual Current and Voltage Harmonic Angles ➁ 0.0° to 359.9°

➀ Readings are obtained only through communications.

➁

Current and Voltage Harmonic Magnitude and Angles 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 13 are shown on the

display.

63230-500-225A2 PowerLogicTM Series 800 Power Meter

PLSD110233

3/2011 Chapter 5—Input/Output Capabilities

Chapter 5—Input/Output Capabilities

Digital Inputs

The power meter includes one solid-state digital input. A digital input is used to detect digital signals. For example, the digital input can be used to determine circuit breaker status, count pulses, or count motor starts. The digital input can also be associated with an external relay. You can log digital input transitions as events in the power meter’s on-board alarm log. The event is date and time stamped with resolution to the second. The power meter counts OFF-to-ON transitions for each input. You can view the count for each input using the Digital Inputs screen, and you can reset this value using the command interface. Figure 5–1 is an example of the Digital Inputs screen.

Figure 5–1: Digital Inputs Screen

A. Lit bargraph indicates that the input is

ON. For analog inputs or outputs, the bargraph indicates the output percentage.

B. SI is common to all meters and

represents standard digital input.

C. A-S1 and A-S2 represent I/O point

numbers on the first (A) module.

D. Use the arrow buttons to scroll through

the remaining I/O points. Point numbers beginning with “B” are on the second module.





  



















The digital input has three operating modes:



• Normal—Use the normal mode for simple on/off digital inputs. In normal mode, digital

inputs can be used to count KY pulses for demand and energy calculation.

• Demand Interval Synch Pulse—you can configure any digital input to accept a

demand synch pulse from a utility demand meter (see “Demand Synch Pulse Input” on page 40 of this chapter for more about this topic). For each demand profile, you can designate only one input as a demand synch input.

• Conditional Energy Control—you can configure one digital input to control conditional

energy (see “Reactive energy accumulates in four quadrants” on page 36 in Chapter 4—Metering Capabilities for more about conditional energy).

NOTE: By default, the digital input is named DIG IN S02 and is set up for normal mode.

For custom setup, use PowerLogic software to define the name and operating mode of the digital input. The name is a 16-character label that identifies the digital input. The operating mode is one of those listed above.

PLSD110140

Normal Demand Mode External Synch Pulse Demand Timing

Billing Meter Demand Timing

Power Meter Demand Timing

Billing Meter Demand Timing

Power Meter Demand Timing (Slave to Master)

Utility Meter Synch Pulse

PowerLogic Chapter 5—Input/Output Capabilities 3/2011

Series 800 Power Meter 63230-500-225A2

Demand Synch Pulse Input

You can configure the power meter to accept a demand synch pulse from an external source, such as another demand meter. By accepting demand synch pulses through a digital input, the power meter can make its demand interval “window” match the other meter’s demand interval “window.” The power meter does this by “watching” the digital input for a pulse from the other demand meter. When it sees a pulse, it starts a new demand interval and calculates the demand for the preceding interval. The power meter then uses the same time interval as the other meter for each demand calculation. Figure 5–2 illustrates this option. See “Demand Readings” on page 30 in Chapter 4—Metering Capabilities for more about demand calculations.

When in demand synch pulse operating mode, the power meter will not start or stop a demand interval without a pulse. The maximum allowable time between pulses is 60 minutes. If 66 minutes (110% of the demand interval) pass before a synch pulse is received, the power meter throws out the demand calculations and begins a new calculation when the next pulse is received. Once in synch with the billing meter, the power meter can be used to verify peak demand charges.

Important facts about the power meter’s demand synch feature are listed below:

• Any installed digital input can be set to accept a demand synch pulse.

• Each system can choose whether to use an external synch pulse, but only one demand

synch pulse can be brought into the meter for each demand system. One input can be used to synchronize any combination of the demand systems.

• The demand synch feature can be set up using PowerLogic software.

Figure 5–2: Demand synch pulse timing

Relay Output Operating Modes

The relay output defaults to external control, but you can choose whether the relay is set to external or internal control:

• External (remote) control—the relay is controlled either from a PC using PowerLogic

software or

• Power meter alarm (internal) control—the relay is controlled by the power meter in

response to a set-point controlled alarm condition, or as a pulse initiator output. Once you’ve set up a relay for power meter control, you can no longer operate the relay remotely. However, you can temporarily override the relay, using PowerLogic software.

NOTE: If any basic setup parameters or I/O setup parameters are modified, all relay outputs will be de-energized.

The 11 relay operating modes are as follows:

• Normal

— Externally Controlled: Energize the relay by issuing a command from a remote

or programmable controller. The relay remains energized until a command to deenergize is issued from the remote

a programmable logic controller using commands via communications.

PC or programmable controller, or until the

63230-500-225A2 PowerLogicTM Series 800 Power Meter 3/2011 Chapter 5—Input/Output Capabilities

power meter loses control power. When control power is restored, the relay is not automatically re-energized.

— Power Meter Alarm: When an alarm condition assigned to the relay occurs, the

relay is energized. The relay is not de-energized until all alarm conditions assigned to the relay have dropped out, the power meter loses control power, or the alarms are over-ridden using PowerLogic software. If the alarm condition is still true when the power meter regains control power, the relay will be re-energized.

• Latched

— Remotely Controlled: Energize the relay by issuing a command from a remote

or programmable controller. The relay remains energized until a command to deenergize is issued from a remote PC or programmable controller, or until the power meter loses control power. When control power is restored, the relay will not be reenergized.

— Power Meter Controlled: When an alarm condition assigned to the relay occurs,

the relay is energized. The relay remains energized—even after all alarm conditions assigned to the relay have dropped out—until a command to de-energize is issued from a remote PC or programmable controller, until the high priority alarm log is cleared from the display, or until the power meter loses control power. When control power is restored, the relay will not be re-energized if the alarm condition is not TRUE.

• Timed

— Remotely Controlled: Energize the relay by issuing a command from a remote PC

or programmable controller. The relay remains energized until the timer expires, or until the power meter loses control power. If a new command to energize the relay is issued before the timer expires, the timer restarts. If the power meter loses control power, the relay will not be re-energized when control power is restored and the timer will reset to zero.

— Power Meter Controlled: When an alarm condition assigned to the relay occurs, the

relay is energized. The relay remains energized for the duration of the timer. When the timer expires, the relay will de-energize and remain de-energized. If the relay is on and the power meter loses control power, the relay will not be re-energized when control power is restored and the timer will reset to zero.

• End Of Power Demand Interval

This mode assigns the relay to operate as a synch pulse to another device. The output operates in timed mode using the timer setting and turns on at the end of a power demand interval. It turns off when the timer expires.

• Absolute kWh Pulse

This mode assigns the relay to operate as a pulse initiator with a user-defined number of kWh per pulse. In this mode, both forward and reverse real energy are treated as additive (as in a tie circuit breaker).

• Absolute kVARh Pulse

This mode assigns the relay to operate as a pulse initiator with a user-defined number of kVARh per pulse. In this mode, both forward and reverse reactive energy are treated as additive (as in a tie circuit breaker).

• kVAh Pulse

This mode assigns the relay to operate as a pulse initiator with a user-defined number of kVAh per pulse. Since kVA has no sign, the kVAh pulse has only one mode.

• kWh In Pulse

This mode assigns the relay to operate as a pulse initiator with a user-defined number of kWh per pulse. In this mode, only the kWh flowing into the load is considered.

• kVARh In Pulse

This mode assigns the relay to operate as a pulse initiator with a user-defined number of kVARh per pulse. In this mode, only the kVARh flowing into the load is considered.

PLSD110122

PowerLogic Chapter 5—Input/Output Capabilities 3/2011

Series 800 Power Meter 63230-500-225A2

• kWh Out Pulse

This mode assigns the relay to operate as a pulse initiator with a user-defined number of kWh per pulse. In this mode, only the kWh flowing out of the load is considered.

• kVARh Out Pulse

This mode assigns the relay to operate as a pulse initiator with a user-defined number of kVARh per pulse. In this mode, only the kVARh flowing out of the load is considered.

The last seven modes in the list above are for pulse initiator applications. All Series 800 Power Meters are equipped with one solid-state solid-state

KY output provides the long life—billions of operations—required for pulse

KY pulse output rated at 100 mA. The

initiator applications.

The KY output is factory configured with Name = KY, Mode = Normal, and Control = External. To set up custom values, press SETUP >

I/O. For detailed instructions, see “I/O

(Input/Output) Setup” on page 18. Then using PowerLogic software, you must define the following values for each mechanical relay output:

• Name—A 16-character label used to identify the digital output.

• Mode—Select one of the operating modes listed above.

• Pulse Weight—You must set the pulse weight, the multiplier of the unit being

measured, if you select any of the pulse modes (last 7 listed above).

• Timer—You must set the timer if you select the timed mode or end of power demand

interval mode (in seconds).

• Control—You must set the relay to be controlled either remotely or internally (from the

power meter) if you select the normal, latched, or timed mode.

For instructions on setting up digital I/Os using software, see your software documentation or help file.

Solid-state KY Pulse Output

This section describes the pulse output capabilities of the power meter. For instructions on wiring the KY pulse output, see “Wiring the Solid-State KY Output” in the installation guide.

The power meter’s digital output is generated by a solid-state device that can be used as a KY pulse output. This solid-state relay provides the extremely long life—billions of operations—required for pulse initiator applications.

The KY output is a Form-A contact with a maximum rating of 100 mA. Because most pulse initiator applications feed solid-state receivers with low burdens, this 100 mA rating is adequate for most applications.

When setting the kWh/pulse value, set the value based on a 2-wire pulse output. For instructions on calculating the correct value, see “Calculating the Kilowatthour-Per-Pulse Value” on page 43 in this chapter.

The KY pulse output can be configured to operate in one of 11 operating modes. See “Relay Output Operating Modes” on page 40 for a description of the modes.

2-wire Pulse Initiator

Figure 5–3 shows a pulse train from a 2-wire pulse initiator application.

Figure 5–3: Two-wire pulse train

ΔT

63230-500-225A2 PowerLogicTM Series 800 Power Meter

(1600 kWh)

1 hour

-------------------------------

X kWh

1 second

------------------------=

(1600 kWh)

3600 seconds

-------------------------------------

X kWh

1 second

------------------------=

X 1600/3600 0.444 kWh/second==

(1600 kW)(1 Hr) 1600 kWh=

0.444 kWh/second 2 pulses/second

------------------------------------------------- 0 . 2 2 2 k Wh / p u l se=

3/2011 Chapter 5—Input/Output Capabilities

In Figure 5– 3, the transitions are marked as 1 and 2. Each transition represents the time when the relay contact closes. Each time the relay transitions, the receiver counts a pulse. The power meter can deliver up to 12 pulses per second in a 2-wire application.

Fixed Pulse Output

Fixed pulse output mode generates a fixed duration pulse output that can be associated with kWh consumption. Figure 5–4 shows the difference in pulse duration values when either TRANS mode or PULSE mode is selected. This mode selection is configured on the MAINT > IO > ADVAN menu.

Figure 5–4: Fixed-pulse output

TRANS & PULSE mode

Pulse Weight = 0.02kWHr/pulse

TRANS mode:

Counts = 4

PULSE mode (100ms):

Counts =

0.02kW 0.04kW 0.06kW 0.08kW 0.1kW

100 msec

Calculating the Kilowatthour-Per-Pulse Value

The following example illustrates how to calculate kilowatthours per pulse (pulse weight). To calculate this value, first determine the highest kW value you can expect and the required pulse rate. Remember the maximum number of pulses is 8 per second.

In this example, the following conditions are set:

• The metered load should not exceed 1600 kW.

• About two KY pulses per second should normally occur. (If a higher load is reached, the

number of pulses per second can increase and still stay within the set limits.)

Step 1: Convert 1600 kW load into kWh/second.

Setting in ADV mode: 10, 25, 50, 100, 150, 200, 300, 500, 1000

0.12kW 0.14kW 0.16kW

Step 2: Calculate the kWh required per pulse.

Step 3: Adjust for the KY initiator (KY will give one pulse per two transitions of the relay).

0.222 kWh/second 2

------------------------------------------------- 0 . 1 1 11 kW h / p u ls e=

Pulse Weight (Ke) 0.11 kWh/pulse=

PowerLogic Chapter 5—Input/Output Capabilities 3/2011

Series 800 Power Meter 63230-500-225A2

Step 4: Round to nearest hundredth, since the power meter only accepts 0.01 kWh

increments.

Analog Inputs

With a PM8M2222 option module installed, a power meter can accept either voltage or current signals through the analog inputs on the option module. The power meter stores a minimum and a maximum value for each analog input.

For technical specifications and instructions on installing and configuring the analog inputs on the PM8M2222, refer to the instruction bulletin (63230-502-200) that ships with the option module. To set up an analog input, you must first set it up from the display. From the SUMMARY screen, select MAINT > SETUP > I/O, then select the appropriate analog input option. Then, in PowerLogic software, define the following values for each analog input:

• Name—a 16-character label used to identify the analog input.

• Units—the units of the monitored analog value (for example, “psi”).

• Scale factor—multiplies the units by this value (such as tenths or hundredths).

• Report Range Lower Limit—the value the Power Meter reports when the input

reaches a minimum value. When the input current is below the lowest valid reading, the Power Meter reports the lower limit.

• Report Range Upper Limit—the value the power meter reports when the input

reaches the maximum value. When the input current is above highest valid reading, the Power Meter reports the upper limit.

For instructions on setting up analog inputs using software, see your software documentation or Help file.

Analog Outputs

This section describes the analog output capabilities when a PM8M2222 is installed on the Power Meter. For technical specifications and instructions on installing and configuring the analog outputs on the PM8M2222, refer to the instruction bulletin (63230-502-200) that ships with the option module.

To set up an analog output, you must first set it up from the display. From the SUMMARY screen, select MAINT > SETUP > I/O, then select the appropriate analog output option. Then, in PowerLogic software, define the following values for each analog input

• Name—a 16-character label used to identify the output. Default names are assigned,

but can be customized

• Output register—the Power Meter register assigned to the analog output.

• Lower Limit—the value equivalent to the minimum output current. When the register

value is below the lower limit, the Power Meter outputs the minimum output current.

• Upper Limit—the value equivalent to the maximum output current. When the register

value is above the upper limit, the Power Meter outputs the maximum output current.

For instructions on setting up an analog output using software, see your software documentation or Help file.

63230-500-225A2 PowerLogicTM Series 800 Power Meter 3/2011 Chapter 6—Alarms

Chapter 6—Alarms

This section describes the alarm features on all Series 800 Power Meters. For information about advanced alarm features, go to “Advanced Alarms” on page 53.

Basic Alarms

The power meter can detect over 50 alarm conditions, including over or under conditions, digital input changes, phase unbalance conditions, and more. It also maintains a counter for each alarm to keep track of the total number of occurrences. A complete list of default basic alarm configurations are described in Table 6–5 on page 51 . In addition, you can set up your own custom alarms after installing an input/output module (PM8M22, PM8M26, or PM8M2222).

When one or more alarm conditions are true, the power meter will execute a task automatically. When an alarm is active, the of the power meter display. If a PM810LOG is installed on a PM810, PowerLogic software can be used to set up each alarm condition to force data log entries in a single data log file. For the PM820, PM850, and PM870 PowerLogic software can be used to set up each alarm condition to force data log entries in up to three user-defined data log files. See Chapter 7—Logging on page 57 for more about data logging.

NOTE: PM820 only supports one data log.

Table 6–1: Basic alarm features by model

! alarm icon appears in the upper-right corner

Basic Alarm Groups

Basic Alarm Feature PM810

Standard alarms 33 33 33 33 33

Open slots for additional standard alarms

Digital 12

Custom alarms No No Yes Yes Yes

➀ Available when an I/O module with analog IN/OUT is installed.

➁ Requires an input/output option module (PM8M22, PM8M26, or the PM8M2222).

➀

➁

PM810 with PM810LOG

➀

➁

PM820 PM850 PM870

777

➁

When using a default alarm, you first choose the alarm group that is appropriate for the application. Each alarm condition is assigned to one of these alarm groups:

Whether you are using a default alarm or creating a custom alarm, you first choose the alarm group that is appropriate for the application. Each alarm condition is assigned to one of these alarm groups:

• Standard—Standard alarms have a detection rate of 1 second and are useful for

detecting conditions such as over current and under voltage. Up to 40 alarms can be set up in this alarm group.

• Digital—Digital alarms are triggered by an exception such as the transition of a digital

input or the end of an incremental energy interval. Up to 12 alarms can be set up in this group.

• Custom—The power meter has many pre-defined alarms, but you can also set up your

own custom alarms using PowerLogic software. For example, you may need to alarm on the ON-to-OFF transition of a digital input. To create this type of custom alarm:

1. Select the appropriate alarm group (digital in this case).

2. Select the type of alarm (described in Table 6–6 on page 52 ).

3. Give the alarm a name.

4. Save the custom alarm. After creating a custom alarm, you can configure it by applying priorities, setting pickups and dropouts (if applicable), and so forth.

Both the power meter display and PowerLogic software can be used to set up standard, digital, and custom alarm types.

PLSD110219

(EV1) (Max1)

(EV2) (Max2)

PLSD110143

EV1

Max1

EV2

Max2

Pickup Setpoint

Dropout Setpoint

Pickup Delay

Alarm Period

Dropout Delay

PowerLogic Chapter 6—Alarms 3/2011

Series 800 Power Meter 63230-500-225A2

Setpoint-driven Alarms

Many of the alarm conditions require that you define setpoints. This includes all alarms for over, under, and phase unbalance alarm conditions. Other alarm conditions such as digital input transitions and phase reversals do not require setpoints. For those alarm conditions that require setpoints, you must define the following information:

• Pickup Setpoint

• Pickup Delay

• Dropout Setpoint

• Dropout Delay

NOTE: Alarms with both Pickup and Dropout setpoints set to zero are invalid.

The following two figures will help you understand how the power meter handles setpointdriven alarms. Figure 6–1 shows what the actual alarm Log entries for Figure 6 – 2 might look like, as displayed by PowerLogic software.

NOTE: The software does not actually display the codes in parentheses—EV1, EV2, Max1, Max2. These are only references to the codes in Figure 6– 2.

Figure 6–1: Sample alarm log entry

Figure 6–2: How the power meter handles setpoint-driven alarms

EV1—The power meter records the date and time that the pickup setpoint and time delay

were satisfied, and the maximum value reached (Max1) during the pickup delay period (T). Also, the power meter performs any tasks assigned to the event such as waveform captures or forced data log entries.

EV2—The power meter records the date and time that the dropout setpoint and time delay were satisfied, and the maximum value reached (Max2) during the alarm period.

The power meter also stores a correlation sequence number ( Under Voltage Phase A Pickup, Under Voltage Phase A Dropout). The pickups and dropouts in the alarm log. You can sort pickups and dropouts by

CSN) for each event (such as

CSN lets you relate

CSN to

correlate the pickups and dropouts of a particular alarm. The pickup and dropout entries of an alarm will have the same CSN. You can also calculate the duration of an event by looking at pickups and dropouts with the same

CSN.

63230-500-225A2 PowerLogicTM Series 800 Power Meter

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PLSD110258

3/2011 Chapter 6—Alarms

Priorities

Each alarm also has a priority level. Use the priorities to distinguish between events that require immediate action and those that do not require action.

• High priority—if a high priority alarm occurs, the display informs you in two ways: the

LED backlight on the display flashes until you acknowledge the alarm and the alarm icon blinks while the alarm is active.

• Medium priority—if a medium priority alarm occurs, the alarm icon blinks only while

the alarm is active. Once the alarm becomes inactive, the alarm icon stops blinking and remains on the display.

• Low priority—if a low priority alarm occurs, the alarm icon blinks only while the alarm is

active. Once the alarm becomes inactive, the alarm icon disappears from the display.

• No priority—if an alarm is set up with no priority, no visible representation will appear

on the display. Alarms with no priority are not entered in the Alarm Log. See Chapter 7—Logging for alarm logging information.

If multiple alarms with different priorities are active at the same time, the display shows the alarm message for the last alarm that occurred. For instructions on setting up alarms from the power meter display, see “ALARM (Alarms) Setup” on page 17.

Viewing Alarm Activity and History

1. Press

2. Press ALARM.

3. View the active alarm listed on the power

4. If there are active alarms, press

###: until ALARM is visible.

meter display. If there are no active alarms, the screen reads, “NO ACTIVE ALARM.”

<--or --> to view a different alarm.

5. Press HIST.

6. Press

7. Press

<-- or --> to view a different

alarm’s history.

1; to return to the SUMMARY

screen.

Types of Setpoint-controlled Functions

This section describes some common alarm functions to which the following information applies:

• Values that are too large to fit into the display may require scale factors. For more

information on scale factors, refer to “Changing Scale Factors” on page 91.

• Relays can be configured as normal, latched, or timed. See “Relay Output Operating

Modes” on page 40 for more information.

• When the alarm occurs, the power meter operates any specified relays. There are two

ways to release relays that are in latched mode:

— Issue a command to de-energize a relay. See Appendix C—Using the Command

Interface on page 83 for instructions on using the command interface, or

— Acknowledge the alarm in the high priority log to release the relays from latched

mode. From the main menu of the display, press ALARM to view and acknowledge unacknowledged alarms.

The list that follows shows the types of alarms available for some common alarm functions:

NOTE: Voltage based alarm setpoints depend on your system configuration. Alarm setpoints for 3-wire systems are V

values while 4-wire systems are V

L-L

L-N

values.

PowerLogic Chapter 6—Alarms 3/2011

Series 800 Power Meter 63230-500-225A2

Under-voltage: Pickup and dropout setpoints are entered in volts. The per-phase under-

voltage alarm occurs when the per-phase voltage is equal to or below the pickup setpoint long enough to satisfy the specified pickup delay (in seconds). The under-voltage alarm clears when the phase voltage remains above the dropout setpoint for the specified dropout delay period.

Over-voltage: Pickup and dropout setpoints are entered in volts. The per-phase overvoltage alarm occurs when the per-phase voltage is equal to or above the pickup setpoint long enough to satisfy the specified pickup delay (in seconds). The over-voltage alarm clears when the phase voltage remains below the dropout setpoint for the specified dropout delay period.

Unbalance Current: Pickup and dropout setpoints are entered in tenths of percent, based on the percentage difference between each phase current with respect to the average of all phase currents. For example, enter an unbalance of 7% as 70. The unbalance current alarm occurs when the phase current deviates from the average of the phase currents, by the percentage pickup setpoint, for the specified pickup delay. The alarm clears when the percentage difference between the phase current and the average of all phases remains below the dropout setpoint for the specified dropout delay period.

Unbalance Voltage: Pickup and dropout setpoints are entered in tenths of percent, based on the percentage difference between each phase voltage with respect to the average of all phase voltages. For example, enter an unbalance of 7% as 70. The unbalance voltage alarm occurs when the phase voltage deviates from the average of the phase voltages, by the percentage pickup setpoint, for the specified pickup delay. The alarm clears when the percentage difference between the phase voltage and the average of all phases remains below the dropout setpoint for the specified dropout delay (in seconds).

Phase Loss—Current: Pickup and dropout setpoints are entered in amperes. The phase loss current alarm occurs when any current value (but not all current values) is equal to or below the pickup setpoint for the specified pickup delay (in seconds). The alarm clears when one of the following is true:

• All of the phases remain above the dropout setpoint for the specified dropout delay, or

• All of the phases drop below the phase loss pickup setpoint.

If all of the phase currents are equal to or below the pickup setpoint, during the pickup delay, the phase loss alarm will not activate. This is considered an under current condition. It should be handled by configuring the under current alarm functions.

Phase Loss—Voltage: Pickup and dropout setpoints are entered in volts. The phase loss voltage alarm occurs when any voltage value (but not all voltage values) is equal to or below the pickup setpoint for the specified pickup delay (in seconds). The alarm clears when one of the following is true:

• All of the phases remain above the dropout setpoint for the specified dropout delay (in

seconds), OR

• All of the phases drop below the phase loss pickup setpoint.

If all of the phase voltages are equal to or below the pickup setpoint, during the pickup delay, the phase loss alarm will not activate. This is considered an under voltage condition. It should be handled by configuring the under voltage alarm functions.

Reverse Power: Pickup and dropout setpoints are entered in kilowatts or kVARs. The reverse power alarm occurs when the power flows in a negative direction and remains at or below the negative pickup value for the specified pickup delay (in seconds). The alarm clears when the power reading remains above the dropout setpoint for the specified dropout delay (in seconds).

Phase Reversal: Pickup and dropout setpoints do not apply to phase reversal. The phase reversal alarm occurs when the phase voltage rotation differs from the default phase rotation. The power meter assumes that an ABC phase rotation is normal. If a CBA phase rotation is normal, the user must change the power meter’s phase rotation from ABC (default) to CBA. To change the phase rotation from the display, from the main menu select Setup > Meter > Advanced. For more information about changing the phase rotation setting of the power meter, refer to “ADVAN (Advanced) Power Meter Setup Features” on page 19.

63230-500-225A2 PowerLogicTM Series 800 Power Meter 3/2011 Chapter 6—Alarms

Scale Factors

A scale factor is the multiplier expressed as a power of 10. For example, a multiplier of 10 is represented as a scale factor of 1, since 101=10; a multiplier of 100 is represented as a scale factor of 2, since 10 Normally, you do not need to change scale factors. If you are creating custom alarms, you need to understand how scale factors work so that you do not overflow the register with a number larger than what the register can hold. When PowerLogic software is used to set up alarms, it automatically handles the scaling of pickup and dropout setpoints. When creating a custom alarm using the power meter’s display, do the following:

• Determine how the corresponding metering value is scaled, and

• Take the scale factor into account when entering alarm pickup and dropout settings.

Pickup and dropout settings must be integer values in the range of -32,767 to +32,767. For example, to set up an under voltage alarm for a 138 kV nominal system, decide upon a setpoint value and then convert it into an integer between -32,767 and +32,767. If the under voltage setpoint were 125,000 V, this would typically be converted to 12500 x 10 and entered as a setpoint of 12500.

Six scale groups are defined (A through F). The scale factor is preset for all factoryconfigured alarms. Table 6–2 lists the available scale factors for each of the scale groups. If you need either an extended range or more resolution, select any of the available scale factors to suit your need. Refer to “Changing Scale Factors” on page 91 of Appendix C—Using the Command Interface.

=100. This allows you to make larger values fit into the register.

Table 6–2: Scale Groups

Scale Group Measurement Range Scale Factor

Scale Group A—Phase Current

Scale Group B—Neutral Current

Scale Group D—Voltage

Scale Group F—Power kW, kVAR, kVA

Amperes

0–327.67 A –2

0–3,276.7 A –1

0–32,767 A 0 (default)

0–327.67 kA 1

Amperes

0–327.67 A –2

0–3,276.7 A –1

0–32,767 A 0 (default)

0–327.67 kA 1

Voltage

0–3,276.7 V –1

0–32,767 V 0 (default)

0–327.67 kV 1

0–3,276.7 kV 2

Power

0–32.767 kW, kVAR, kVA –3

0–327.67 kW, kVAR, kVA –2

0–3,276.7 kW, kVAR, kVA –1

0–32,767 kW, kVAR, kVA 0 (default)

0–327.67 MW, MVAR, MVA 1

0–3,276.7 MW, MVAR, MVA 2

0–32,767 MW, MVAR, MVA 3

PowerLogic Chapter 6—Alarms 3/2011

Series 800 Power Meter 63230-500-225A2

Scaling Alarm Setpoints

This section is for users who do not have PowerLogic software and need to set up alarms from the power meter display. It explains how to scale alarm setpoints.

When the power meter is equipped with a display, most metered quantities are limited to five characters (plus a positive or negative sign). The display will also show the engineering units applied to that quantity.

To determine the proper scaling of an alarm setpoint, view the register number for the associated scale group. The scale factor is the number in the Dec column for that register. For example, the register number for Scale D to Phase Volts is 3212. If the number in the Dec column is 1, the scale factor is 10 (101=10). Remember that scale factor 1 in Table 6–3 on page 50 for Scale Group D is measured in kV. Therefore, to define an alarm setpoint of 125 kV, enter 12.5 because 12.5 multiplied by 10 is 125. Below is a table listing the scale groups and their register numbers.

Table 6–3: Scale Group Register Numbers

Scale Group Register Number

Scale Group A—Phase Current 3209

Scale Group B—Neutral Current 3210

Scale Group C—Ground Current 3211

Scale Group D—Voltage 3212

Scale Group F—Power kW, kVAR, kVA 3214

Alarm Conditions and Alarm Numbers

This section lists the power meter’s predefined alarm conditions. For each alarm condition, the following information is provided.

• Alarm No.—a position number indicating where an alarm falls in the list.

• Alarm Description—a brief description of the alarm condition

• Abbreviated Display Name—an abbreviated name that describes the alarm condition

but is limited to 15 characters that fit in the window of the power meter’s display.

• Test Register—the register number that contains the value (where applicable) that is

used as the basis for a comparison to alarm pickup and dropout settings.

• Units—the unit that applies to the pickup and dropout settings.

• Scale Group—the scale group that applies to the test register’s metering value (A–F).

For a description of scale groups, see “Scale Factors” on page 49.

• Alarm Type—a reference to a definition that provides details on the operation and

configuration of the alarm. For a description of alarm types, refer to Table 6 – 6 on page 52 .

Table 6– 4 lists the default alarm configuration - factory-enabled alarms.

Table 6– 5 lists the default basic alarms by alarm number.

Table 6– 6 lists the alarm types.

Table 6–4: Default Alarm Configuration - Factory-enabled Alarms

Alarm

No.

19 Voltage Unbalance L-N 20 (2.0%) 300 20 (2.0%) 300

20 Max. Voltage Unbalance L-L 20 (2.0%) 300 20 (2.0%) 300

53 End of Incremental Energy Interval 0 0 0 0

55 Power-up Reset 0 0 0 0

Standard Alarm

Pickup

Limit

Pickup

Limit Time

Delay

Dropout

Limit

Dropout

Limit Time

Delay

63230-500-225A2 PowerLogicTM Series 800 Power Meter 3/2011 Chapter 6—Alarms

Table 6–5: List of Default Basic Alarms by Alarm Number

Alarm

Number

Standard Speed Alarms (1 Second)

01 Over Current Phase A Over Ia 1100 Amperes A 010

02 Over Current Phase B Over Ib 1101 Amperes A 010

03 Over Current Phase C Over Ic 1102 Amperes A 010

04 Over Current Neutral Over In 1103 Amperes B 010

05 Current Unbalance, Max I Unbal Max 1110 Tenths % — 010

06 Current Loss Current Loss 3262 Amperes A 053

07 Over Voltage Phase A–N Over Van 1124 Volts D 010

08 Over Voltage Phase B–N Over Vbn 1125 Volts D 010

09 Over Voltage Phase C–N Over Vcn 1126 Volts D 010

10 Over Voltage Phase A–B Over Vab 1120 Volts D 010

11 Over Voltage Phase B–C Over Vbc 1121 Volts D 010

12 Over Voltage Phase C–A Over Vca 1122 Volts D 010

13 Under Voltage Phase A Under Van 1124 Volts D 020

14 Under Voltage Phase B Under Vbn 1125 Volts D 020

15 Under Voltage Phase C Under Vcn 1126 Volts D 020

16 Under Voltage Phase A–B Under Vab 1120 Volts D 020

17 Under Voltage Phase B–C Under Vbc 1121 Volts D 020

18 Under Voltage Phase C–A Under Vca 1122 Volts D 020

19 Voltage Unbalance L–N, Max V Unbal L-N Max 1136 Tenths % — 010

20 Voltage Unbalance L–L, Max V Unbal L-L Max 1132 Tenths % — 010

22 Phase Reversal Phase Rev 3228 — — 051

23 Over kW Demand Over kW Dmd 2151 kW F 011

24 Lagging true power factor Lag True PF 1163 Thousandths — 055

25 Over THD of Voltage Phase A–N Over THD Van 1207 Tenths % — 010

26 Over THD of Voltage Phase B–N Over THD Vbn 1208 Tenths % — 010

27 Over THD of Voltage Phase C–N Over THD Vcn 1209 Tenths % — 010

28 Over THD of Voltage Phase A–B Over THD Vab 1211 Tenths % — 010

29 Over THD of Voltage Phase B–C Over THD Vbc 1212 Tenths % — 010

30 Over THD of Voltage Phase C–A Over THD Vca 1213 Tenths % — 010

31 Over kVA Demand Over kVA Dmd 2181 kVA F 011

32 Over kW Total Over kW Total 1143 kW F 011

33 Over kVA Total Over kVA Total 1151 kVA F 011

34-40

34-40 Reserved for custom alarms. — — — — —

Digital

02 End of power demand interval End Dmd Int N/A — — 070

03 Power up/Reset Pwr Up/Reset N/A — — 070

04 Digital Input OFF/ON DIG IN S02 2 — — 060

05-12

05-12 Reserved for custom alarms — — — — —

Alarm Description

Voltage Loss (loss of A,B,C, but not all)

Reserved for additional analog alarms ➂

End of incremental energy interval

Reserved for additional digital alarms ➂

Abbreviated

Display Name

Voltage Loss 3262 Volts D 052

—————

End Inc Enr Int N/A — — 070

—————

Test

Units

Scale

Group

➀

➀ Scale groups are described in Table 6– 2 on page 49 . ➁ Alarm types are described in Table 6– 6 on page 52 . ➂ Additional analog and digital alarms require a corresponding I/O module to be installed.

Alarm Type

➁

PowerLogic

Series 800 Power Meter 63230-500-225A2

Chapter 6—Alarms 3/2011

Table 6–6: Alarm Types

Type Description Operation

Standard Speed

If the test register value exceeds the setpoint long enough to satisfy the pickup

010 Over Value Alarm

011 Over Power Alarm

Over Reverse

012

Power Alarm

020 Under Value Alarm

021 Under Power Alarm

051 Phase Reversal

052 Phase Loss, Voltage

053 Phase Loss, Current

054 Leading Power Factor

055 Lagging Power Factor

Digital

060 Digital Input On

061 Digital Input Off

070 Unary

delay period, the alarm condition will be true. When the value in the test register falls below the dropout setpoint long enough to satisfy the dropout delay period, the alarm will drop out. Pickup and dropout setpoints are positive, delays are in seconds.

If the absolute value in the test register exceeds the setpoint long enough to satisfy the pickup delay period, the alarm condition will be true. When absolute the value in the test register falls below the dropout setpoint long enough to satisfy the dropout delay period, the alarm will drop out. Pickup and dropout setpoints are positive, delays are in seconds.

If the absolute value in the test register exceeds the setpoint long enough to satisfy the pickup delay period, the alarm condition will be true. When absolute the value in the test register falls below the dropout setpoint long enough to satisfy the dropout delay period, the alarm will drop out. This alarm will only hold true for reverse power conditions. Positive power values will not cause the alarm to occur. Pickup and dropout setpoints are positive, delays are in seconds.

If the test register value is below the setpoint long enough to satisfy the pickup delay period, the alarm condition will be true. When the value in the test register rises above the dropout setpoint long enough to satisfy the dropout delay period, the alarm will drop out. Pickup and dropout setpoints are positive, delays are in seconds.

If the absolute value in the test register is below the setpoint long enough to satisfy the pickup delay period, the alarm condition will be true. When the absolute value in the test register rises above the dropout setpoint long enough to satisfy the dropout delay period, the alarm will drop out. Pickup and dropout setpoints are positive, delays are in seconds.

The phase reversal alarm will occur whenever the phase voltage waveform rotation differs from the default phase rotation. The ABC phase rotation is assumed to be normal. If a CBA phase rotation is normal, the user should reprogram the power meter’s phase rotation ABC to CBA phase rotation. The pickup and dropout setpoints for phase reversal do not apply.

The phase loss voltage alarm will occur when any one or two phase voltages (but not all) fall to the pickup value and remain at or below the pickup value long enough to satisfy the specified pickup delay. When all of the phases remain at or above the dropout value for the dropout delay period, or when all of the phases drop below the specified phase loss pickup value, the alarm will drop out. Pickup and dropout setpoints are positive, delays are in seconds.

The phase loss current alarm will occur when any one or two phase currents (but not all) fall to the pickup value and remain at or below the pickup value long enough to satisfy the specified pickup delay. When all of the phases remain at or above the dropout value for the dropout delay period, or when all of the phases drop below the specified phase loss pickup value, the alarm will drop out. Pickup and dropout setpoints are positive, delays are in seconds.

The leading power factor alarm will occur when the test register value becomes more leading than the pickup setpoint (such as closer to 0.010) and remains more leading long enough to satisfy the pickup delay period. When the value becomes equal to or less leading than the dropout setpoint, that is 1.000, and remains less leading for the dropout delay period, the alarm will drop out. Both the pickup setpoint and the dropout setpoint must be positive values representing leading power factor. Enter setpoints as integer values representing power factor in thousandths. For example, to define a dropout setpoint of 0.5, enter 500. Delays are in seconds.

The lagging power factor alarm will occur when the test register value becomes more lagging than the pickup setpoint (such as closer to –0.010) and remains more lagging long enough to satisfy the pickup delay period. When the value becomes equal to or less lagging than the dropout setpoint and remains less lagging for the dropout delay period, the alarm will drop out. Both the pickup setpoint and the dropout setpoint must be positive values representing lagging power factor. Enter setpoints as integer values representing power factor in thousandths. For example, to define a dropout setpoint of –0.5, enter 500. Delays are in seconds.

The digital input transition alarms will occur whenever the digital input changes from off to on. The alarm will dropout when the digital input changes back to on from off. The pickup and dropout setpoints and delays do not apply.

The digital input transition alarms will occur whenever the digital input changes from on to off.The alarm will dropout when the digital input changes back to off from on. The pickup and dropout setpoints and delays do not apply.

This is a internal signal from the power meter and can be used, for example, to alarm at the end of an interval or when the power meter is reset. Neither the pickup and dropout delays nor the setpoints apply.

63230-500-225A2 PowerLogicTM Series 800 Power Meter 3/2011 Chapter 6—Alarms

Advanced Alarms

This section describes the advanced alarm features found on the PM850 and the PM870. For information about basic alarm features, see “Basic Alarms” on page 45.

Table 6 – 7: Advanced alarm features by model

Advanced Alarm Feature PM850 PM870

Boolean alarms 10 10

Disturbance alarms — 12

Alarm levels Yes Yes

Custom alarms Yes Yes

Advanced Alarm Groups

In addition to the basic alarm groups (see “Basic Alarm Groups” on page 45), the following advanced alarm groups are available.

• Boolean—Boolean alarms use Boolean logic to combine up to four enabled alarms.

You can choose from the Boolean logic operands: AND, NAND, OR, NOR, or XOR to combine your alarms. Up to 10 alarms can be set up in this group.

• Disturbance (PM870)—Disturbance alarms have a detection rate of half a cycle and

are useful for detecting voltage sags and swells. The Power Meter comes configured with 12 default voltage sag and swell alarms; current sag and swell alarms are available by configuring custom alarms. Up to 12 disturbance alarms can be set up in this group. For more information about disturbance monitoring, see Chapter 9—Disturbance Monitoring (PM870) on page 65.

• Custom—The power meter has many pre-defined alarms, but you can also set up your

own custom alarms using PowerLogic software. For example, you may need to alarm on a sag condition for current A. To create this type of custom alarm:

1. Select the appropriate alarm group (Disturbance in this case).

2. Delete any of the default alarms you are not using from the disturbance alarms group (for example, Sag Vbc). The Add button should be available now.

3. Click Add, then select Disturbance, Sag, and Current A.

4. Give the alarm a name.

5. Save the custom alarm.

PowerLogic software can be used to configure any of the advanced alarm types, but the power meter display cannot be used. Also, use PowerLogic software to delete an alarm and create a new alarm for evaluating other metered quantities.

After creating a custom alarm, you can configure it by applying priorities, setting pickups and dropouts (if applicable), and so forth.

PLSD110156

kW Demand

Alarm #43 Pick Up

Alarm #43 Drop Out

Alarm #26 Drop Out

Alarm #26 Pick Up

Demand OK Approaching

Peak Demand

Peak Demand Exceeded

Below Peak Demand

Demand OK

kW Demand (default) Alarm #26 kW Demand with pickup

of 120 kWd, medium priority

kW Demand 150 kW (custom) Alarm #43 kW Demand with pickup

of 150 kWd, high priority

Time

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PLSD110258

PowerLogic Chapter 6—Alarms 3/2011

Series 800 Power Meter 63230-500-225A2

Alarm Levels

Using PowerLogic software with a PM850 or PM870, multiple alarms can be set up for one particular quantity (parameter) to create alarm “levels”. You can take different actions depending on the severity of the alarm.

For example, you could set up two alarms for kW Demand. A default alarm already exists for kW Demand, but you could create another custom alarm for kW Demand, selecting different pickup points for it. The custom kW Demand alarm, once created, will appear in the standard alarm list. For illustration purposes, let’s set the default kW Demand alarm to 120 kW and the new custom alarm to 150 kW. One alarm named kW Demand ; the other kW Demand 150kW as shown in Figure 6–3. If you choose to set up two alarms for the same quantity, use slightly different names to distinguish which alarm is active. The display can hold up to 15 characters for each name. You can create up to 10 alarm levels for each quantity.

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

150

140

130

120

100

points

Viewing Alarm Activity and History

1. Press ###: until ALARM is visible.

2. Press ALARM.

3. View the active alarm listed on the power meter display. If there are no active alarms, the screen reads, “NO ACTIVE ALARMS.”

4. If there are active alarms, press

to view a different alarm.

5. Press HIST.

6. Press

<-- or --> to view a different

alarm’s history.

7. Press

1; to return to the SUMMARY

screen.

<--or --

63230-500-225A2 PowerLogicTM Series 800 Power Meter 3/2011 Chapter 6—Alarms

Alarm Conditions and Alarm Numbers

This section lists the power meter’s predefined alarm conditions. For each alarm condition, the following information is provided.

• Alarm No.—a position number indicating where an alarm falls in the list.

• Alarm Description—a brief description of the alarm condition

• Abbreviated Display Name—an abbreviated name that describes the alarm condition,

but is limited to 15 characters that fit in the window of the power meter’s display.

• Test Register—the register number that contains the value (where applicable) that is

used as the basis for a comparison to alarm pickup and dropout settings.

• Units—the unit that applies to the pickup and dropout settings.

• Scale Group—the scale group that applies to the test register’s metering value (A–F).

For a description of scale groups, see “Scale Factors” on page 49.

• Alarm Type—a reference to a definition that provides details on the operation and

configuration of the alarm. For a description of advanced alarm types, refer to Table 6–9.

Table 6–8 lists the preconfigured alarms by alarm number.

Table 6–8: List of Default Disturbance Alarms by Alarm Number

Alarm

Number

Disturbance Monitoring (1/2 Cycle) (PM870)

41 Voltage Swell A Swell Van Volts D 080

42 Voltage Swell B Swell Vbn Volts D 080

43 Voltage Swell C Swell Vcn Volts D 080

44 Voltage Swell A–B Swell Vab Volts D 080

45 Voltage Swell B–C Swell Vbc Volts D 080

46 Voltage Swell C–A Swell Vca Volts D 080

47 Voltage Sag A–N Sag Van Volts D 080

48 Voltage Sag B–N Sag Vbn Volts D 080

49 Voltage Sag C–N Sag Vcn Volts D 080

50 Voltage Sag A–B Sag Vab Volts D 080

51 Voltage Sag B–C Sag Vbc Volts D 080

52 Voltage Sag C–A Sag Vca Volts D 080

Alarm Description

Abbreviated

Display Name

Test

Units

Scale

Group

➀

Alarm

Type

➁

➀ Scale groups are described in Table 6– 2 on page 49. ➁ Advanced Alarm types are described in Table 6– 9 on page 56.

NOTE: Current sag and swell alarms are enabled using PowerLogic software or by setting up custom alarms. To do this, delete any of the above default disturbance alarms, and then create a new current sag or swell alarm (see the example under the “Advanced Alarm Groups” on page 53.). Sag and swell alarms are available for all channels.

PowerLogic

Series 800 Power Meter 63230-500-225A2

Chapter 6—Alarms 3/2011

Table 6–9: Advanced Alarm Types

Type Description Operation

Boolean

100

Logic AND

The AND alarm will occur when all of the combined enabled alarms are true (up to 4). The alarm will drop out when any of the enabled alarms drops out.

Logic NAND

101

Logic OR

102

Logic NOR

103

Logic XOR

104

Disturbance (PM870)

080 Voltage Swell

080 Voltage Sag

The NAND alarm will occur when any, but not all, or none of the combined enabled alarms are true. The alarm will drop out when all of the enabled alarms drop out, or all are true.

The OR alarm will occur when any of the combined enabled alarms are true (up to 4). The alarm will drop out when all of the enabled alarms are false.

The NOR alarm will occur when none of the combined enabled alarms are true (up to 4). The alarm will drop out when any of the enabled alarms are true.

The XOR alarm will occur when only one of the combined enabled alarms is true (up to 4). The alarm will drop out when the enabled alarm drops out or when more than one alarm becomes true.

The voltage swell alarms will occur whenever the continuous rms calculation is above the pickup setpoint and remains above the pickup setpoint for the specified number of cycles. When the continuous rms calculations fall below the dropout setpoint and remain below the setpoint for the specified number of cycles, the alarm will drop out. Pickup and dropout setpoints are positive and delays are in cycles.

The voltage sag alarms will occur whenever the continuous rms calculation is below the pickup setpoint and remains below the pickup setpoint for the specified number of cycles. When the continuous rms calculations rise above the dropout setpoint and remain above the setpoint for the specified number of cycles, the alarm will drop out. Pickup and dropout setpoints are positive and delays are in cycles.

63230-500-225A2 PowerLogicTM Series 800 Power Meter 3/2011 Chapter 7—Logging

Chapter 7—Logging

Introduction

This chapter briefly describes the following logs of the power meter:

• Alarm log

• Maintenance log

• Billing log

• User-defined data logs

See the table below for a summary of logs supported by each power meter model.

Table 7– 1: Number of Logs Supported by Model

Number of Logs per Model

Log Type

PM810

Alarm Log 1 1 1 1 1

Maintenance Log 1 1 1 1 1

Billing Log — 1 1 1 1

Data Log 1 — 1 1 1 1

Data Log 2 — 1 1

Data Log 3 — 1 1

Data Log 4 — 1 1

PM810 with

PM810LOG

PM820 PM850 PM870

Logs are files stored in the non-volatile memory of the power meter and are referred to as “on-board logs.” The amount of memory available depends on the model (see Table 7 – 2). Data and billing log files are preconfigured at the factory. You can accept the preconfigured logs or change them to meet your specific needs. Use PowerLogic software to set up and view all the logs. See your software’s online help or documentation for information about working with the power meter’s on-board logs.

Table 7–2: Available Memory for On-board Logs

Power Meter Model Total Memory Available

PM810 0 KB

PM810 with PM810LOG 80 KB

PM820 80 KB

PM850 800 KB

PM870 800 KB

Waveform captures are stored in the power meter’s memory, but they are not considered logs (see Chapter 8—Waveform Capture on page 63). Refer to “Memory Allocation for Log Files”on the next page for information about memory allocation in the power meter.

PowerLogic Chapter 7—Logging 3/2011

Series 800 Power Meter 63230-500-225A2

Memory Allocation for Log Files

Each file in the power meter has a maximum memory size. Memory is not shared between the different logs, so reducing the number of values recorded in one log will not allow more values to be stored in a different log. The following table lists the memory allocated to each log:

Table 7–3: Memory Allocation for Each Log

Alarm Log

Log Type

Alarm Log 100 11 2,200 All models

Maintenance Log 40 4 320 All models

Billing Log 5000 96 + 3 D/T 65,536

Data Log 1 1851 96 + 3 D/T 14,808

Data Log 2 5000 96 + 3 D/T 393,216

Data Log 3 5000 96 + 3 D/T 393,216

Data Log 4 32,000 96 + 3 D/T 393,216

Max. Records

Stored

Max. Register

Values Recorded

Storage

(Bytes)

Power Meter

Model

PM810 with PM810LOGPM820

PM850

PM870

PM810 with PM810LOGPM820

PM850

PM870

PM850

PM870

PM850

PM870

PM850

PM870

By default, the power meter can log the occurrence of any alarm condition. Each time an alarm occurs it is entered into the alarm log. The alarm log in the power meter stores the pickup and dropout points of alarms along with the date and time associated with these alarms. You select whether the alarm log saves data as first-in-first-out (FIFO) or fill and hold. With PowerLogic software, you can view and save the alarm log to disk, and reset the alarm log to clear the data out of the power meter’s memory.

Alarm Log Storage

Maintenance Log

The power meter stores alarm log data in non-volatile memory. The size of the alarm log is fixed at 100 records.

The power meter stores a maintenance log in non-volatile memory. The file has a fixed record length of four registers and a total of 40 records. The first register is a cumulative counter over the life of the power meter. The last three registers contain the date/time of when the log was updated. Table 7 – 4 describes the values stored in the maintenance log. These values are cumulative over the life of the power meter and cannot be reset.

NOTE: Use PowerLogic software to view the maintenance log.

63230-500-225A2 PowerLogicTM Series 800 Power Meter 3/2011 Chapter 7—Logging

Table 7–4: Values Stored in the Maintenance Log

Record

Number

1 Time stamp of the last change

2 Date and time of the last power failure

3 Date and time of the last firmware download

4 Date and time of the last option module change

6–11 Reserved

12 Date and time the Present Month Min/Max was last reset

13 Date and time the Previous Month Min/Max was last reset

14 Date and time the Energy Pulse Output was overdriven

15 Date and time the Power Demand Min/Max was last reset

16 Date and time the Current Demand Min/Max was last reset

17 Date and time the Generic Demand Min/Max was last reset

18 Date and time the Input Demand Min/Max was last reset

19 Reserved

20 Date and time the Accumulated Energy value was last reset

21 Date and time the Conditional Energy value was last reset

22 Date and time the Incremental Energy value was last reset

23 Reserved

24 Date and time of the last Standard KY Output operation

25 Date and time of the last Discrete Output @A01 operation 26 Date and time of the last Discrete Output @A02 operation➀ 27 Date and time of the last Discrete Output @A03 operation➀ 28 Date and time of the last Discrete Output @A04 operation➀ 29 Date and time of the last Discrete Output @A05 operation➀ 30 Date and time of the last Discrete Output @A06 operation➀ 31 Date and time of the last Discrete Output @A07 operation➀ 32 Date and time of the last Discrete Output @A08 operation➀ 33 Date and time of the last Discrete Output @B01 operation➀ 34 Date and time of the last Discrete Output @B02 operation➀ 35 Date and time of the last Discrete Output @B03 operation➀ 36 Date and time of the last Discrete Output @B04 operation➀ 37 Date and time of the last Discrete Output @B05 operation➀ 38 Date and time of the last Discrete Output @B06 operation➀ 39 Date and time of the last Discrete Output @B07 operation➀ 40 Date and time of the last Discrete Output @B08 operation➀

Additional outputs require option modules and are based on the I/O

➀

configuration of that particular module.

Date and time of the latest LVC update due to configuration errors detected during meter initialization

Value Stored

➀

PowerLogic Chapter 7—Logging 3/2011

Series 800 Power Meter 63230-500-225A2

Data Logs

The PM810 with a PM810LOG records and stores readings at regularly scheduled intervals in one independent data log. This log is preconfigured at the factory. You can accept the preconfigured data log or change it to meet your specific needs. You can set up the data log to store the following information:

The PM820 records and stores readings at regularly scheduled intervals in one independent data log. The PM850 and PM870 record and store meter readings at regularly scheduled intervals in up to three independent data logs. Some data log files are preconfigured at the factory. You can accept the preconfigured data logs or change them to meet your specific needs. You can set up each data log to store the following information:

• Timed Interval—1 second to 24 hours for Data Log 1

• Timed Interval—1 second to 24 hours for Data Log 1, and 1 minute to 24 hours for Data

Logs 2, 3 and 4 (how often the values are logged)

• First-In-First-Out (FIFO) or Fill and Hold

• Values to be logged—up to 96 registers along with the date and time of each log entry

• START/STOP Time—each log has the ability to start and stop at a certain time during

the day

The default registers for Data Log 1 are listed in Table 7– 5 below.

Table 7–5: Default Data Log 1 Register List

Description

Start Date/Time 3 D/T Current D/T

Current, Phase A 1 integer 1100

Current, Phase B 1 integer 1101

Current, Phase C 1 integer 1102

Current, Neutral 1 integer 1103

Voltage A-B 1 integer 1120

Voltage B-C 1 integer 1121

Voltage C-A 1 integer 1122

Voltage A-N 1 integer 1124

Voltage B-N 1 integer 1125

Voltage C-N 1 integer 1126

True Power Factor, Phase A 1 signed integer 1160

True Power Factor, Phase B 1 signed integer 1161

True Power Factor, Phase C 1 signed integer 1162

True Power Factor, Total 1 signed integer 1163

Last Demand, Current, 3-Phase Average

Last Demand, Real Power, 3-Phase Total

Last Demand, Reactive Power, 3-Phase Total

Last Demand, Apparent Power 3-Phase Total

Number of

Registers

1 integer 2000

1 integer 2150

1 integer 2165

1 integer 2180

Data Type➀ Register Number

➀ Refer to Appendix A for more information about data types.

Use PowerLogic software to

clear each data log file, independently of the others, from the

power meter’s memory. For instructions on setting up and clearing data log files, refer to the PowerLogic software online help or documentation.

63230-500-225A2 PowerLogicTM Series 800 Power Meter 3/2011 Chapter 7—Logging

Alarm-driven Data Log Entries

The PM810 with a PM810LOG can detect over 50 alarm conditions, including over/under conditions, digital input changes, phase unbalance conditions, and more. (See Chapter 6—Alarms on page 45 for more information.) Use PowerLogic software to assign each alarm condition one or more tasks, including forcing data log entries into Data Log 1.

The PM820, PM850, and PM870 can detect over 50 alarm conditions, including over/under conditions, digital input changes, phase unbalance conditions, and more. (See Chapter 6—Alarms on page 45 for more information.) Use PowerLogic software alarm condition one or more tasks, including forcing data log entries into one or more data log files.

For example, assume you have defined three data log files. Using PowerLogic software, you could select an alarm condition such as “Overcurrent Phase A” and set up the power meter to force data log entries into any of the three log files each time the alarm condition occurs.

to assign each

Organizing Data Log Files (PM850, PM870)

You can organize data log files in many ways. One possible way is to organize log files according to the logging interval. You might also define a log file for entries forced by alarm conditions. For example, you could set up three data log files as follows:

Data Log 1: Log voltage every minute. Make the file large

enough to hold 60 entries so that you could look back over the last hour’s voltage readings.

Data Log 2: Log energy once every day. Make the file large

enough to hold 31 entries so that you could look back over the last month and see daily energy use.

Data Log 3: Report by exception. The report by exception file

contains data log entries that are forced by the occurrence of an alarm condition. See the topic above, “Alarm-driven Data Log Entries”, for more information.

Billing Log

NOTE: The same data log file can support both scheduled and alarm-driven entries.

The PM810 with a PM810LOG, PM820, PM850 and PM870 Power Meters store a configurable billing log that updates every 10 to 1,440 minutes (the default interval 60 minutes). Data is stored by month, day, and the specified interval in minutes. The log contains 24 months of monthly data and 32 days of daily data, but because the maximum amount of memory for the billing log is 64 KB, the number of recorded intervals varies based on the number of registers recorded in the billing log. For example, using all of the registers listed in Table 7–6, the billing log holds 12 days of data at 60-minute intervals. This value is calculated by doing the following:

1. Calculate the total number of registers used (see Table 7– 6 on page 63 for the number of registers). In this example, all 26 registers are used.

2. Calculate the number of bytes used for the 24 monthly records.

24 records (26 registers x 2 bytes/register) = 1,248

3. Calculate the number of bytes used for the 32 daily records.

32 (26 x 2) = 1,664

4. Calculate the number of bytes used each day (based on 15 minute intervals).

96 (26 x 2) = 4,992

5. Calculate the number of days of 60-minute interval data recorded by subtracting the values from steps 2 and 3 from the total log file size of 65,536 bytes and then dividing by the value in step 4.

(65,536 – 1,248 – 1,664)

4,992 = 12 days

PowerLogic

Series 800 Power Meter 63230-500-225A2

Chapter 7—Logging 3/2011

63230-500-225A2 PowerLogicTM Series 800 Power Meter 3/2011 Chapter 7—Logging

Table 7– 6: Billing Log Register List

Description

Start Date/Time 3 D/T Current D/T

Real Energy In 4 MOD10L4 1700

Reactive Energy In 4 MOD10L4 1704

Real Energy Out 4 MOD10L4 1708

Reactive Energy Out 4 MOD10L4 1712

Apparent Energy Total 4 MOD10L4 1724

Total PF 1 INT16 1163

3P Real Power Demand 1 INT16 2151

3P Apparent Power Demand 1 INT16 2181

➀ Refer to Appendix A for more information about data types.

Configure the Billing Log Logging Interval

The billing log can be configured to update every 10 to 1,440 minutes. The default logging interval is 60 minutes. To set the logging interval you can use PowerLogic software, or you can use the power meter to write the logging interval to register 3085 (see “Read and

Write Registers” on page 26).

Number of

Registers

Data Type➀ Register Number

PowerLogic

Series 800 Power Meter 63230-500-225A2

Chapter 7—Logging 3/2011

63230-500-225A2 PowerLogicTM Series 800 Power Meter

185

16 32 64 128

Number

Channels

Number of Samples per Cycle

PLSD110333

3/2011 Chapter 8—Waveform Capture

Chapter 8—Waveform Capture

Introduction

This section explains the waveform capture capabilities of the following Power Meter models:

• PM850

• PM870

See Table 8–1 for a summary of waveform capture features.

Table 8–1: Waveform capture summary by model

Waveform Capture Feature PM850 PM870

Number of waveform captures 5 5

Waveform initiated:

Manually

By alarm

Samples per cycle 128 Configurable*

Channels (1 to 6) Configurable Configurable*

Cycles 3 Configurable*

Precycles 1 Configurable*

* See Figure 8– 1.



Waveform Capture

A waveform capture can be initiated manually or by an alarm trigger to analyze steadystate or disturbance events. This waveform provides information about individual harmonics, which PowerLogic software calculates through the 63rd harmonic. It also calculates total harmonic distortion (THD) and other power quality parameters.

NOTE: Disturbance waveform captures are available in the PM870 only.

In the PM850, the waveform capture records five individual three-cycle captures at 128 samples per cycle simultaneously on all six metered channels. In the PM870, there is a range of one to five waveform captures, but the number of cycles captured varies based on the number of samples per cycle and the number of channels selected in your software. Use Figure 8–1 to determine the number of cycles captured.

Figure 8–1: PM870 Number of Cycles Captured

NOTE: The number of cycles shown above are the total number of cycles allowed (preevent cycles + event cycles = total cycles).

PowerLogic Chapter 8—Waveform Capture 3/2011

Series 800 Power Meter 63230-500-225A2

Initiating a Waveform

Using PowerLogic software from a remote PC, initiate a waveform capture manually by selecting the power meter and issuing the acquire command. The software will automatically retrieve the waveform capture from the power meter. You can display the waveform for all three phases, or zoom in on a single waveform, which includes a data block with extensive harmonic data. See your software’s online help or documentation for instructions.

Waveform Storage

The power meter can store multiple captured waveforms in its non-volatile memory. The number of waveforms stored is based on the number selected. There are a maximum of five stored waveforms. All stored waveform data is retained on power loss.

Waveform Storage Modes

There are two ways to store waveform captures: “FIFO” and “Fill and Hold.” FIFO mode allows the file to fill up the waveform capture file. After the file is full, the oldest waveform capture is removed, and the most recent waveform capture is added to the file. The Fill and Hold mode fills the file until the configured number of waveform captures is reached. New waveform captures cannot be added until the file is cleared.

How the Power Meter Captures an Event

When the power meter senses the trigger—that is, when the digital input transitions from OFF to ON, or an alarm condition is met—the power meter transfers the cycle data from its data buffer into the memory allocated for event captures.

Channel Selection in PowerLogic Software

Using PowerLogic software, you can select up to six channels to include in the waveform capture. See your software’s online help or documentation for instructions.

63230-500-225A2 PowerLogicTM Series 800 Power Meter 3/2011 Chapter 9—Disturbance Monitoring (PM870)

Chapter 9—Disturbance Monitoring (PM870)

This chapter provides background information about disturbance monitoring and describes how to use the PM870 to continuously monitor for disturbances on the current and voltage inputs.

About Disturbance Monitoring

Momentary voltage disturbances are an increasing concern for industrial plants, hospitals, data centers, and other commercial facilities because modern equipment used in those facilities tends to be more sensitive to voltage sags, swells, and momentary interruptions. The power meter can detect these events by continuously monitoring and recording current and voltage information on all metered channels. Using this information, you can diagnose equipment problems resulting from voltage sags or swells and identify areas of vulnerability, enabling you to take corrective action.

The interruption of an industrial process because of an abnormal voltage condition can result in substantial costs, which manifest themselves in many ways:

• labor costs for cleanup and restart

• lost productivity

• damaged product or reduced product quality

• delivery delays and user dissatisfaction

The entire process can depend on the sensitivity of a single piece of equipment. Relays, contactors, adjustable speed drives, programmable controllers, PCs, and data communication networks are all susceptible to power quality problems. After the electrical system is interrupted or shut down, determining the cause may be difficult.

Several types of voltage disturbances are possible, each potentially having a different origin and requiring a separate solution. A momentary interruption occurs when a protective device interrupts the circuit that feeds a facility. Swells and over-voltages can damage equipment or cause motors to overheat. Perhaps the biggest power quality problem is the momentary voltage sag caused by faults on remote circuits.

A voltage sag is a brief (1/2 cycle to 1 minute) decrease in rms voltage magnitude. A sag is typically caused by a remote fault somewhere on the power system, often initiated by a lightning strike. In Figure 9–1, the utility circuit breaker cleared the fault near plant D. The fault not only caused an interruption to plant D, but also resulted in voltage sags to plants A, B, and C.

NOTE: The PM870 is able to detect sag and swell events less than 1/2 cycle duration. However, it may be impractical to have setpoints more sensitive than 10% for voltage and current fluctuations.

A fault near plant D, cleared by the utility circuit breaker, can still affect plants A, B, and C, resulting in a voltage sag.

Utility Circuit

Breakers with

Reclosers

Utility

Transformer

1 Plant A

2 Plant B

3 Plant C

4 Plant D

Fault

PowerLogic Chapter 9—Disturbance Monitoring (PM870) 3/2011

Series 800 Power Meter 63230-500-225A2

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

System voltage sags are much more numerous than interruptions, since a wider part of the distribution system is affected. And, if reclosers are operating, they may cause repeated sags. The PM870 can record recloser sequences, too. The waveform in Figure 9 – 2 shows the magnitude of a voltage sag, which persists until the remote fault is cleared.

Figure 9–2: Waveform showing voltage sag caused by a remote fault and lasting five cycles

With the information obtained from the PM870 during a disturbance, you can solve disturbance-related problems, including the following:

• Obtain accurate measurement from your power system

— Identify the number of sags, swells, or interruptions for evaluation

— Accurately distinguish between sags and interruptions, with accurate recording of

the time and date of the occurrence

— Provide accurate data in equipment specification (ride-through, etc.)

• Determine equipment sensitivity

— Compare equipment sensitivity of different brands (contactor dropout, drive

sensitivity, etc.)

— Diagnose mysterious events such as equipment malfunctions, contactor dropout,

computer glitches, etc.

— Compare actual sensitivity of equipment to published standards

63230-500-225A2 PowerLogicTM Series 800 Power Meter 3/2011 Chapter 9—Disturbance Monitoring (PM870)

— Use waveform capture to determine exact disturbance characteristics to compare

with equipment sensitivity

— Justify purchase of power conditioning equipment

— Distinguish between equipment malfunctions and power system related problems

• Develop disturbance prevention methods

— Develop solutions to voltage sensitivity-based problems using actual data

• Work with the utility

— Discuss protection practices with the serving utility and negotiate suitable changes

to shorten the duration of potential sags (reduce interruption time delays on protective devices)

— Work with the utility to provide alternate “stiffer” services (alternate design practices)

Capabilities of the PM870 During an Event

The PM870 calculates rms magnitudes, based on 128 data points per cycle, every 1/2 cycle. This ensures that even sub-cycle duration rms variations are not missed.

The power meter is configured with 12 default voltage disturbance alarms for all voltage channels. Current sag and swell alarms are available by configuring custom alarms. A maximum of 12 disturbance alarms are available. When the PM870 detects a sag or swell, it can perform the following actions:

• Perform a waveform capture with a resolution from 185 cycles at 16 samples per

cycle on one channel down to 3 cycles at 128 samples per cycle on all six channels of the metered current and voltage inputs (see Figure 8 – 1 on page 63). Use PowerLogic software to set up the event capture and retrieve the waveform.

• Record the event in the alarm log. When an event occurs, the PM870 updates the

alarm log with an event date and time stamp with 1 millisecond resolution for a sag or swell pickup, and an rms magnitude corresponding to the most extreme value of the sag or swell during the event pickup delay. Also, the PM870 can record the sag or swell dropout in the alarm log at the end of the disturbance. Information stored includes: a dropout time stamp with 1 millisecond resolution and a second rms magnitude corresponding to the most extreme value of the sag or swell. Use PowerLogic software to view the alarm log.

NOTE: The Power Meter display has a 1 second resolution.

• Force a data log entry in up to 3 independent data logs. Use PowerLogic software to

set up and view the data logs.

• Operate any output relays when the event is detected.

• Indicate the alarm on the display by flashing the maintenance icon to show that a sag

or swell event has occurred.

PowerLogic

Series 800 Power Meter 63230-500-225A2

Chapter 9—Disturbance Monitoring (PM870) 3/2011

63230-500-225A2 PowerLogicTM Series 800 Power Meter

DANGER

3/2011 Chapter 10—Maintenance and Troubleshooting

Chapter 10—Maintenance and Troubleshooting

Introduction

This chapter describes information related to maintenance of your power meter.

The power meter does not contain any user-serviceable parts. If the power meter requires service, contact your local sales representative. Do not open the power meter. Opening the power meter voids the warranty.

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

• Do not attempt to service the power meter. CT and PT inputs may contain hazardous currents and voltages.

• Only authorized service personnel from the manufacturer should service the power meter.

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

CAUTION

Power Meter Memory

Date and Time Settings

HAZARD OF EQUIPMENT DAMAGE

• Do not perform a Dielectric (Hi-Pot) or Megger test on the power meter. High voltage testing of the power meter may damage the unit.

• Before performing Hi-Pot or Megger testing on any equipment in which the power meter is installed, disconnect all input and output wires to the power meter.

Failure to follow these instructions can result in injury or equipment damage.

The power meter uses its non-volatile memory (RAM) to retain all data and metering configuration values. Under the operating temperature range specified for the power meter, this non-volatile memory has an expected life of up to 100 years. The power meter stores its data logs on a memory chip, which has a life expectancy of up to 20 years under the operating temperature range specified for the power meter. The life of the internal batterybacked clock is over 10 years at 25°C.

NOTE: Life expectancy is a function of operating conditions; this does not constitute any expressed or implied warranty.

The clock in the PM810 is volatile. Therefore, the PM810 returns to the default clock date/time of 12:00 AM 01-01-1980 each time the meter resets. Reset occurs when the meter loses control power or you change meter configuration parameters including selecting the time format (24-hr or AM/PM) or date format. To avoid resetting clock time more than once, always set the clock date and time last. The PM810LOG (optional module) provides a non-volatile clock in addition to on-board logging and individual harmonics readings for the PM810.



0



 G

  









*

.

PLSD110094d



*++

 

+*



PLSD110103

PowerLogic Chapter 10—Maintenance and Troubleshooting 3/2011

Series 800 Power Meter 63230-500-225A2

Identifying the Firmware Version, Model, and Serial Number

1. From the first menu level, press MAINT is visible.

2. Press DIAG.

3. Press METER.

4. View the model, firmware (OS) version, and serial number.

5. Press

1; to return to the MAINTENANCE

screen.

Viewing the Display in Different Languages

The power meter can be set to use one of five different languages: English, French, and Spanish. Other languages are available. Please contact your local sales representative for more information about other language options.

The power meter language can be selected by doing the following:

1. From the first menu level, press ###: until MAINT is visible.

2. Press MAINT.

3. Press SETUP.

4. Enter your password, then press OK.

5. Press

6. Press LANG.

7. Select the language: ENGL (English),

8. Press OK.

9. Press

10. Press YES to save your changes.

###: until LANG is visible.

FREN (French), SPAN (Spanish), GERMN (German), or RUSSN (Russian).

1;.

###: until

Technical Support

For assistance with technical issues, contact your local Schneider Electric representative.

63230-500-225A2 PowerLogicTM Series 800 Power Meter

DANGER

3/2011 Chapter 10—Maintenance and Troubleshooting

Troubleshooting

The information in Table 10 – 1 on page 72 describes potential problems and their possible causes. It also describes checks you can perform or possible solutions for each. If you still cannot resolve the problem after referring to this table, contact the your local Schneider Electric sales representative for assistance.

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

• Apply appropriate personal protective equipment (PPE) and follow safe electrical practices. For example, in the United States, see NFPA 70E.

• This equipment must be installed and serviced only by qualified personnel.

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

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

• Carefully inspect the work area for tools and objects that may have been left inside the equipment.

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

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

Heartbeat LED

The heartbeat LED helps to troubleshoot the power meter. The LED works as follows:

• Normal operation — the LED flashes at a steady rate during normal operation.

• Communications — the LED flash rate changes as the communications port transmits

and receives data. If the LED flash rate does not change when data is sent from the host computer, the power meter is not receiving requests from the host computer.

• Hardware — if the heartbeat LED remains lit and does not flash ON and OFF, there is

a hardware problem. Do a hard reset of the power meter (turn OFF power to the power meter, then restore power to the power meter). If the heartbeat LED remains lit, contact your local sales representative.

• Control power and display — if the heartbeat LED flashes, but the display is blank,

the display is not functioning properly. If the display is blank and the LED is not lit, verify that control power is connected to the power meter.

PowerLogic

Series 800 Power Meter 63230-500-225A2

Chapter 10—Maintenance and Troubleshooting 3/2011

Table 10–1: Troubleshooting

Potential Problem Possible Cause Possible Solution

Go to DIAGNOSTICS > MAINTENANCE. Error messages display to indicate the reason the icon is illuminated. Note these error messages and call Technical Support, or contact your local sales representative for assistance.

Set date and time.

• Verify that the power meter line (L) and neutral (N) terminals (terminals 25 and

27) are receiving the necessary power.

• Verify that the heartbeat LED is blinking.

Verify that the power meter is grounded as described in “Grounding the Power Meter” in the installation manual.

Check that the correct values have been entered for power meter setup parameters (CT and PT ratings, System Type, Nominal Frequency, and so on). See “Power Meter Setup” on page 13 for setup instructions.

Check power meter voltage input terminals L (8, 9, 10, 11) to verify that adequate voltage is present.

Check that all CTs and PTs are connected correctly (proper polarity is observed) and that they are energized. Check shorting terminals. See “Instrument Transformer Wiring: Troubleshooting Tables” on page 73. Initiate a wiring check using PowerLogic software.

Check to see that the power meter is correctly addressed. See “COMMS (Communications) Setup” on page 15 for instructions.

Verify that the baud rate of the power meter matches the baud rate of all other devices on its communications link. See “COMMS (Communications) Setup” on page 15 for instructions.

Verify the power meter communications connections. Refer to the PM800-Series Installation Guide.

Check to see that a multipoint communications terminator is properly installed. Refer to the PM800-Series Installation Guide.

Check the route statement. Refer to your software online help or documentation for instructions on defining route statements.

The maintenance icon is illuminated on the power meter display.

The display shows error code 3.

The display is blank after applying control power to the power meter.

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

Cannot communicate with power meter from a remote personal computer.

When the maintenance icon is illuminated, it indicates a potential hardware or firmware problem in the power meter.

Loss of control power or meter configuration has changed.

The power meter may not be receiving the necessary power.

Power meter is grounded incorrectly.

Incorrect setup values.

Incorrect voltage inputs.

Power meter is wired improperly.

Power meter address is incorrect.

Power meter baud rate is incorrect.

Communications lines are improperly connected.

Communications lines are improperly terminated.

Incorrect route statement to power meter.

63230-500-225A2 PowerLogicTM Series 800 Power Meter

3 VAB I

3 Avg

 PF

3 Avg

 1000

kVA 2kW 

–1000

 I

3 Avg

1000

3 Avg

3/2011 Appendix A—Instrument Transformer Wiring: Troubleshooting Tables

Appendix A—Instrument Transformer Wiring: Troubleshooting Tables

Abnormal readings in an installed meter can sometimes signify improper wiring. This appendix is provided as an aid in troubleshooting potential wiring problems.

Using This Appendix

The following pages contain “Case” tables arranged in sections. These tables show a variety of symptoms and probable causes.

Section I: Check these tables first. These are common problems for 3-wire and 4-wire systems that can occur regardless of system type.

Section II: Check these tables if troubleshooting more complex 3-wire systems.

Section III: Check these tables if troubleshooting more complex 4-wire systems.

The symptoms listed are “ideal,” and some judgment should be exercised when troubleshooting. For example, if the kW reading is 25, but you know that it should be about 300 kW, go to a table where “kW = 0” is listed as one of the symptoms.

Because it is nearly impossible to address all combinations of multiple wiring mistakes or other problems that can occur (e.g., blown PT fuses, missing PT neutral ground connection), this guide generally addresses only one wiring problem at a time.

Before trying to troubleshoot wiring problems, it is imperative that all instantaneous readings be available for reference. Specifically, those readings should include the following:

• line-to-line voltages

• line-to-neutral voltages

• phase currents

• power factor

• kW

• kVAR

• kVA

What is Normal? Most power systems have a lagging (inductive) power factor. The only time a leading power

factor is expected is if power factor correction capacitors are switched in or over-excited synchronous motors with enough capacitive kVARS are on-line to overcorrect the power factor to leading. Some uninterruptable power supplies (UPS) also produce a leading power factor.

"Normal" lagging power system readings are as follows:

• Positive kW =

• Negative kVAR =

• kVA (always positive) =

•

about the same)

• Phase currents approximately equal

• Phase voltages approximately equal

A quick check for proper readings consists of kW comparisons (calculated using the previous equation and compared to the meter reading) and a reasonable lagging 3-phase average power factor reading. If these checks are okay, there is little reason to continue to check for wiring problems.

= lagging in the range 0.70 to 1.00 (for 4-wire systems, all phase PFs are

PowerLogicTM Series 800 Power Meter 63230-500-225A2 Appendix A—Instrument Transformer Wiring: Troubleshooting Tables 3/2011

Section I: Common Problems for 3-Wire and 4-Wire Systems

Section I—Case A

Symptoms: 3-Wire and 4-Wire Possible Causes

• CT secondaries shorted.

• Zero amps

• Zero kW, kVAR, kVA

Section I—Case B

Symptoms: 3-Wire and 4-Wire Possible Causes

• Less than 2% load on power meter based on CT ratio.

Example: with 100/5 CT's, at least 2A must flow through CT window for power meter to “wake up.”

• Negative kW of expected magnitude

• Positive kVAR

• Normal lagging power factor

Section I—Case C

Symptoms: 3-Wire and 4-Wire Possible Causes

• Frequency is an abnormal value; may or may

not be a multiple of 50/60 Hz.

• All three CT polarities backwards; could be CTs are physically mounted

with primary polarity mark toward the load instead of toward source or secondary leads swapped.

• All three PT polarities backwards; again, could be on primary or secondary.

NOTE: Experience shows CTs are usually the problem.

• PTs primary and/or secondary neutral common not grounded (values as

high as 275 Hz and as low as 10 Hz have been seen).

• System grounding problem at the power distribution transformer (such as

utility transformer), though this is not likely.

63230-500-225A2 PowerLogicTM Series 800 Power Meter

VABV

3/2011 Appendix A—Instrument Transformer Wiring: Troubleshooting Tables

Section II: 3-Wire System Troubleshooting

Section II—Case A

Symptoms: 3-Wire Possible Causes

• Currents and voltages approximately balanced

• kW = near 0

• kVAR = near 0

• PF can be any value, probably fluctuating

Section II—Case B

Symptoms: 3-Wire Possible Causes

• Phase B current is higher than A and C

(except in System Type 31).

• kVA = about half of the expected magnitude

• kW and kVAR can be positive or negative, less

than about half of the expected magnitude.

• PF can be any value, probably a low leading

value.

Section II—Case C

Symptoms: 3-Wire Possible Causes

• is higher than and

• kVA = about half of the expected magnitude

• kW and kVAR can be positive or negative, less

than about half of the expected magnitude

• PF can be any value, probably a low leading

value

• CT secondary leads are swapped (A-phase lead on C-phase terminal and

vice versa).

• PT secondary leads are swapped (A-phase lead on C-phase terminal and

vice versa).

• One CT polarity is backwards.

• One PT polarity is backwards.

Section II—Case D

Symptoms: 3-Wire Possible Causes

• kW = 0 or low, with magnitude less than kVAR

• kVAR = positive or negative with magnitude of

close to what is expected for kW

• kVA = expected magnitude

• PF = near 0 up to about 0.7 lead

• Either the two voltage leads are swapped OR the two current leads are

swapped AND one instrument transformer has backwards polarity. (look for high or phase B current = high)

• The power meter is metering a purely capacitive load (this is unusual); in

this case kW and kVAR will be positive and PF will be near 0 lead.

Section II—Case E

Symptoms: 3-Wire Possible Causes

• One phase current reads 0

• kVA = about 1/2 of the expected value

• kW, kVAR, and power factor can be positive or

negative of any value

• The CT on the phase that reads 0 is short-circuited.

• Less than 2% current (based on CT ratio) flowing through the CT on the

phase that reads 0.

PowerLogicTM Series 800 Power Meter 63230-500-225A2

277=

480=

277=

VBCV

277=

480=

VCAV

Appendix A—Instrument Transformer Wiring: Troubleshooting Tables 3/2011

Section III: 4-Wire System Troubleshooting

Section III—Case A

Symptoms: 4-Wire Possible Causes

• kW = 1/3 of the expected value

• kVAR = 1/3 of the expected value

• power factor = 1/3 of the expected value

• All else is normal

Section III—Case B

Symptoms: 4-Wire Possible Causes

• kW = 1/3 of the expected value

• kVAR = 1/3 of the expected value

• 2 of the 3 line-to-line voltages are low

• power factor = 1/3 of the expected value

• All else is normal

Section III—Case C

Symptoms: 4-Wire Possible Causes

• One line-to-neutral voltage is zero

• 2 of the 3 line-to-line voltages are low

• kW = 2/3 of the expected value

• kVAR = 2/3 of the expected value

• kVA = 2/3 of the expected value

• Power factor may look abnormal

• One CT polarity is backwards.

NOTE: The only way this problem will usually be detected is by the Quick Check procedure. It is very important to always calculate kW. In this case, it is the only symptom and will go unnoticed unless the calculation is done or someone notices backwards CT on a waveform capture.

• One PT polarity is backwards.

NOTE: The line-to-line voltage reading that does not reference the PT with backwards polarity will be the only correct reading.

Example: , ,

In this case, the A-phase PT polarity is backwards. is correct because it does not reference .

• PT metering input missing (blown fuse, open phase disconnect, etc.) on the

phase that reads zero.

NOTE: The line-to-line voltage reading that does not reference the missing PT input will be the only correct reading.

Example: , ,

In this case, the B-phase PT input is missing. is correct because it does not reference .

Section III—Case D

Symptoms: 4-Wire Possible Causes

• 3-phase kW = 2/3 of the expected value

• 3-phase kVAR = 2/3 of the expected value

• 3-phase kVA = 2/3 of the expected value

• One phase current reads 0

• All else is normal

• The CT on the phase that reads 0 is short-circuited.

• Less than 2% current (based on CT ratio) flowing through the CT on the

phase that reads 0.

63230-500-225A2 PowerLogicTM Series 800 Power Meter 3/2011 Appendix A—Instrument Transformer Wiring: Troubleshooting Tables

Section III—Case E

Symptoms: 4-Wire Possible Causes

• kW = near 0

• kVA = near 0

• 3-phase average power factor flip-flopping lead

and lag

• Voltages, currents, and kVA are normal

Section III—Case F

Symptoms: 4-Wire Possible Causes

• kW = negative and less than kVAR

• KVAR = negative and close to value expected

for kW

• kVA = expected value

• Power factor low and leading

• Voltages and currents are normal

Section III—Case G

Symptoms: 4-Wire Possible Causes

• kW = negative and less than kVAR

• kVAR = positive and close to the value for kW

NOTE: looks like kW and kVAR swapped places

kVA = expected value

•

• Power factor low and lagging

• Voltages and currents are normal

• Two CT secondary leads are swapped (A-phase on B-phase terminal, for

example).

• Two PT secondary leads are swapped (A-phase on B-phase terminal, for

example).

NOTE: In either case, the phase input that is not swapped will read normal lagging power factor.

• All three PT lead connections “rotated” counterclockwise: A-phase wire on

C-phase terminal, B-phase wire on A-phase terminal, C-phase wire on Bphase terminal.

• All three CT lead connections “rotated” clockwise: A-phase wire on B-phase

terminal, B-phase wire on C-phase terminal, C-phase wire on A-phase terminal.

• All three PT lead connections “rotated” clockwise: A-phase wire on B-phase

terminal, B-phase wire on C-phase terminal, C-phase wire on A-phase terminal.

• All three CT lead connections “rotated” counterclockwise: A-phase wire on

C-phase terminal, B-phase wire on A-phase terminal, C-phase wire on Bphase terminal.

PowerLogicTM Series 800 Power Meter 63230-500-225A2

kW 25=

kVAR 15–=

kVA 27=

IA904A=

IB910A=

IC931A=

3 Avg

908A=

495V=

491V=

287V=

284V=

3 Avg

0.75=

0.22

 I

3 Avg

1000

1.732 495 908  1000

778

kVA

Appendix A—Instrument Transformer Wiring: Troubleshooting Tables 3/2011

Field Example

Readings from a 4-wire system

•

Troubleshooting Diagnosis

• Power factors cannot be correct .

• None of the “Section II” symptoms exist, so proceed to the 4-wire troubleshooting

(“Section IV”).

• Cannot calculate kW because 3-phase power factor cannot be right, so calculate kVA

instead.

• Calculated kVA =

• Power meter reading is essentially zero compared to this value.

• 4-wire Case E looks similar.

• Since the PTs were connected to other power meters which were reading correctly,

suspect two CT leads swapped.

• Since A-phase power factor is the only one that has a normal looking lagging value,

suspect B and C-phase CT leads may be swapped.

• After swapping B and C-phase CT leads, all readings went to the expected values;

problem solved.

lag to lead fluctuating

= =

63230-500-225A2 PowerLogicTM Series 800 Power Meter 3/2011 Appendix B—Register List

Appendix B—Register List

Register List Access

The register list corresponding to the latest firmware version can be found on line at the Schneider Electric website.

1. Using a web browser, go to: www.Schneider-Electric.com.

2. Locate the Search box in the upper right corner of the home page.

3. In the Search box enter “PM8”.

4. In the drop-down box click on the selection “PM800 series”.

5. Locate the downloads area on the right side of the page and click on “Software/Firmware”.

6. Click on the applicable register list then download the document file indicated.

In addition you will find the latest firmware files and a firmware history file that describes the enhancements for each of the different firmware releases.

About Registers

Floating-point Registers

For registers defined in bits, the rightmost bit is referred to as bit 00. Figure B–1 shows how bits are organized in a register.

Figure B–1: Bits in a register

High Byte Low Byte

00 0000 01010100 00

Bit No.

010203040506070809101112131415

The power meter registers can be used with MODBUS or JBUS protocols. Although the MODBUS protocol uses a zero-based register addressing convention and JBUS protocol uses a one-based register addressing convention, the power meter automatically compensates for the MODBUS offset of one. Regard all registers as holding registers where a 30,000 or 40,000 offset can be used. For example, Current Phase A will reside in register 31,100 or 41,100 instead of 1,100.

Floating-point registers are also available. To enable floating-point registers, see “Enabling Floating-point Registers” on page 91.

PowerLogicTM Series 800 Power Meter 63230-500-225A2

1023456789101112131415

00000

Sign Bit 0=Leading 1=Lagging

Unused Bits

Set to 0

Power Factor

in the range 100-1000 (thousandths)

Appendix B—Register List 3/2011

How Date and Time are Stored in Registers

The date and time are stored in a three-register compressed format. Each of the three registers, such as registers 1810 to 1812, contain a high and low byte value to represent the date and time in hexadecimal. Table B–1 lists the register and the portion of the date or time it represents.

Table B–1: Date and Time Format

Table B–2 provides an example of the date and time. If the date was 01/25/00 at 11:06:59, the Hex value would be 0119, 640B, 063B. Breaking it down into bytes we have the following:

Table B–2: Date and Time Byte Example

Hexadecimal Value Hi Byte Lo Byte

0119 01 = month 19 = day

640B 64 = year 0B = hour

063B 06 = minute 3B = seconds

NOTE: Date format is a 3 (6-byte) register compressed format. (Year 2001 is represented as 101 in the year byte.)

How Signed Power Factor is Stored in the Register

Each power factor value occupies one register. Power factor values are stored using signed magnitude notation (see Figure B–2). Bit number 15, the sign bit, indicates leading/lagging. A positive value (bit 15=0) always indicates leading. A negative value (bit 15=1) always indicates lagging. Bits 0–9 store a value in the range 0–1,000 decimal. For example the power meter would return a leading power factor of 0.5 as 500. Divide by 1,000 to get a power factor in the range 0 to 1.000.

Figure B–2: Power Factor Register Format

When the power factor is lagging, the power meter returns a high negative value—for example, -31,794. This happens because bit 15=1 (for example, the binary equivalent of 31,794 is 1000001111001110). To get a value in the range 0 to 1,000, you need to mask bit

15. You do this by adding 32,768 to the value. An example will help clarify.

Assume that you read a power factor value of -31,794. Convert this to a power factor in the range 0 to 1.000, as follows:

-31,794 + 32,768 = 974

974/1,000 = .974 lagging power factor

63230-500-225A2 PowerLogicTM Series 800 Power Meter 3/2011 Appendix B—Register List

Supported Modbus Commands

Table B–3 provides the Modbus commands that the PM800 Series meters support. For an up-to-date register list, see ““Register List Access”” at the start of this chapter.

Table B–3: Modbus Commands

Command Description

0x03 Read holding registers

0x04 Read input registers

0x06 Preset single registers

0x10 Preset multiple registers

Report ID

Return String

byte 1: 0x11

0x11

0x2B

byte 2: number of bytes following without crc

byte 3: ID byte = 250

byte 4: status = 0xFF

bytes 5+: ID string = PM8xx Power Meter

last 2 bytes: CRC

Read device identification, BASIC implementation (0x00, 0x01, 0x02 data), conformity level 1,

Object Values

0x01: If register 4128 is 0, then “Schneider Electric. If register 4128 is 1, then “Square D”

0x02: “PM8xx”

0x03: “Vxx.yyy” where xx.yyy is the OS version number. This is the reformatted version of register 7001. If the value for register 7001 is 11900, then the 0x03 data would be “V11.900”

Resetting Registers

Table B–4 provides the commands needed to reset many of the power meter features. You can perform these resets simply by writing the commands into register 4126.

Table B–4: Register Listing—Reset Commands

Reset Commands—Write commands to Register 4126.

Command Parameters Notes

666 Restart demand metering

1115 Reset Meter

3211 Reset all alarms to default values

3320 De-energize digital output

3321 Energize digital output

3361 Reset digital output counter

3365 Reset digital input counters

7016 4000

7017 4001

6209

10001 Clear the Usage Timers. (Set to 0)

14255 Reset all Min/Max Values. (Sets values to defaults)

21212 Reset Peak Demand values. (Set to 0)

30078 Clear all Energy Accumulators. (Set to 0)

7018 4002

7019 4003

7020 4004

7021 4005

Preset Energy Values

PowerLogicTM Series 800 Power Meter 63230-500-225A2 Appendix B—Register List 3/2011

63230-500-225A2 PowerLogicTM Series 800 Power Meter

8020

(status of the last command)

8021

(error code caused by the last command)

8022

(data returned by the last command)

3/2011 Appendix C—Using the Command Interface

Appendix C—Using the Command Interface

Overview of the Command Interface

The power meter provides a command interface, which can be used to issue commands that perform various operations such as controlling relays. Table C–1 lists the definitions for the registers.Table C – 2 lists the available commands. The command interface is located in memory at registers 8000–8149.

Table C–1: Location of the command interface

8000 This is the register where you write the commands.

8001–8015

8017

8018

8019

8020–8149

These are the registers where you write the parameters for a command. Commands can have up to 15 parameters associated with them.

Command pointer. This register holds the register number where the most recently entered command is stored.

Results pointer. This register holds the register number where the results of the most recently entered command are stored.

I/O data pointer. Use this register to point to data buffer registers where you can send additional data or return data.

These registers are for you (the user) to write information. Depending on which pointer places the information in the register, the register can contain status (from pointer 8017), results (from pointer 8018), or data (from pointer 8019). The registers will contain information such as whether the function is enabled or disabled, set to fill and hold, start and stop times, logging intervals, and so forth.

By default, return data will start at 8020 unless you specify otherwise.

When registers 8017 through 8019 are set to zero, no values are returned. When any or all of these registers contain a value, the value in the register “points” to a target register, which contains the status, error code, or I/O data (depending on the command) when the command is executed. Figure C–1 shows how these registers work.

NOTE: You determine the register location where results will be written. Therefore, take care when assigning register values in the pointer registers; values may be corrupted when two commands use the same register.

Figure C–1: Command interface pointer registers

Refer to “Register List Access” on page 79 for instructions on accessing the complete register list.

PowerLogic

Series 800 Power Meter 63230-500-225A2

Appendix C—Using the Command Interface 3/2011

Issuing Commands

To issue commands using the command interface, follow these general steps:

1. Write the related parameter(s) to the command parameter registers 8001–15.

2. Write the command code to command interface register 8000.

If no parameters are associated with the command, then you need only to write the command code to register 8000. Table C – 2 lists the command codes that can be written to the command interface into register 8000. Some commands have an associated register where you write parameters for that command. For example, when you write the parameter 9999 to register 8001 and issue command code 3351, all relays will be energized if they are set up for external control.

Table C–2: Command Codes

Command

Code

1110 None None

1210 None None Clears the communications counters.

1310

1410 None None Disables the revenue security switch

1411 None None Enables the revenue security switch

Command Parameter

8001

8002

8003

8004

8005

8006

Parameters Description

Causes soft reset of the unit (re-initializes the power meter).

Sets the system date and time. Values for the

Month

Day

Year

Hour

Minute

Second

registers are:

Month (1–12)

Day (1–31)

Year (4-digit, for example 2000)

Hour (Military time, for example 14 = 2:00pm)

Minute (1–59)

Second (1–59)

Relay Outputs

3310 8001 Relay Output Number ➀ Configures relay for external control.

3311 8001 Relay Output Number

3320 8001 Relay Output Number

3321 8001 Relay Output Number

3330 8001 Relay Output Number

3340 8001 Relay Output Number

3341 8001 Relay Output Number

3350 8001 9999 De-energizes all relays.

3351 8001 9999 Energizes all relays.

3361 8001 Relay Output Number

3362 8001 Relay Output Number

3363 8001 None Resets the operation counter for all relays.

3364 8001 None Resets the turn-on time for all relays.

3365 8001 Input Number

3366 8001 Input Number

3367 8001 None Resets the operation counter for all inputs.

3368 8001 None Resets turn-on time for all inputs.

3369 8001 None Resets all counters and timers for all I/Os.

3370 8001 Analog Output Number

3371 8001 Analog Output Number

3380 8001 9999 Disables all analog outputs.

3381 8002 9999 Enables all analog outputs.

➀ You must write to register 8001 the number that identifies which output you would like to use. To determine the identifying number, refer to“I/O Point Numbers” on page 86 for instructions.

➁ Data buffer location (register 8019) is the pointer to the first register where data will be stored. By default, return data begins at register 8020, although you can use any of the registers from 8020–8149. Take care when

assigning pointers. Values may be corrupted if two commands are using the same register.

Refer to “Register List Access” on page 79 for instructions on accessing the complete register list.

➀ Configures relay for internal control. ➀ De-energizes designated relay. ➀ Energizes designated relay.

Releases specified relay from latched

➀

condition.

➀ Releases specified relay from override control. ➀ Places specified relay under override control.

➀ Resets operation counter for specified relay. ➀ Resets the turn-on time for specified relay.

Resets the operation counter for specified

➀

input.

➀ Resets turn-on time for specified input.

➀ Disables specified analog output. ➀ Enables specified analog output.

63230-500-225A2 PowerLogicTM Series 800 Power Meter 3/2011 Appendix C—Using the Command Interface

Table C–2: Command Codes

Command

Code

Command Parameter

Parameters Description

Resets

1522 None None Resets the alarm history log.

0 = Present and previous

4110 8001

5110 None None Resets all demand registers.

5111 None None Resets current demand.

5113 None None Resets power demand.

5114 None None Resets input demand.

5115 None None

5210 None None Resets all min/max demand.

5211 None None Resets current min/max demand.

5213 None None Resets power min/max demand.

5214 None None Resets input min/max demand.

5215 None None Resets generic 1 min/max demand.

5910 8001 Bitmap

6209 8019 I/O Data Pointer

6210 None None Clears all energies.

6211 None None Clears all accumulated energy values.

6212 None None Clears conditional energy values.

6213 None None Clears incremental energy values.

6214 None None Clears input metering accumulation.

6215 None

6320 None None Disables conditional energy accumulation.

6321 None None Enables conditional energy accumulation.

6910 None None Starts a new incremental energy interval.

months

1 = Present month

2 = Previous month

1 = IEEE

2 = IEC

Resets min/max.

Resets generic demand for first group of 10 quantities.

Start new demand interval.

Bit 0 = Power Demand

1 = Current Demand

2 = Input Metering Demand

3 = Generic Demand Profile

Preset Accumulated Energies

Requires the IO Data Pointer to point to registers where energy preset values are

➁

entered. All Accumulated energy values must be entered in the order in which they occur in registers 1700 to 1727.

Resets the following parameters to IEEE or IEC defaults:

1. Phase labels

2. Menu labels

3. Harmonic units

4. PF sign

5. THD denominator

6. Date Format

Files

7510 8001 1–3

7511 8001 File Number Triggers single data log entry.

➀ You must write to register 8001 the number that identifies which output you would like to use. To determine the identifying number, refer to“I/O Point Numbers” on page 86 for instructions.

assigning pointers. Values may be corrupted if two commands are using the same register.

Refer to “Register List Access” on page 79 for instructions on accessing the complete register list.

Triggers data log entry. Bitmap where Bit 0 = Data Log 1, Bit 1 = Data Log 2, Bit 2 = Data Log 3, etc.

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Appendix C—Using the Command Interface 3/2011

Table C–2: Command Codes

I/O Point Numbers

Command

Code

Command Parameter

Parameters Description

Setup

9020 None None Enter into setup mode.

9021 8001

➀ You must write to register 8001 the number that identifies which output you would like to use. To determine the identifying number, refer to“I/O Point Numbers” on page 86 for instructions.

assigning pointers. Values may be corrupted if two commands are using the same register.

Refer to “Register List Access” on page 79 for instructions on accessing the complete register list.

1 = Save

2 = Do not save

Exit setup mode and save all changes.

All inputs and outputs of the power meter have a reference number and a label that correspond to the position of that particular input or output.

• The reference number is used to manually control the input or output with the command

interface.

• The label is the default identifier that identifies that same input or output. The label

appears on the display, in PowerLogic software

, and on the option card.

• See Table C–3 for a complete list of I/O Point Numbers

Table C–3: I/O Point Numbers

Module Standard I/O PM8M22 PM8M26 PM8M2222 I/O Point Number

—

A—

B—

KY S1

———

A-R1 A-R2 A-S1 A-S2

B-R1 B-R2 B-S1 B-S2

A-R1 A-R2 A-S1 A-S2 A-S3 A-S4 A-S5 A-S6

B-R1 B-R2 B-S1 B-S2 B-S3 B-S4 B-S5 B-S6

A-R1 A-R2 A-S1 A-S2 A-AI1 A-AI2 A-AO1 A-AO2

B-R1 B-R2 B-S1 B-S2 B-AI1 B-AI2 B-AO1 B-AO2

1 2

3 4 5 6 7 8 9 10

11 12 13 14 15 16 17 18

Operating Outputs from the Command Interface

To operate an output from the command interface, first identify the relay using the I/O point number. Then, set the output to external control. For example, to energize output 1, write

the commands as follows:

1. Write number 1 to register 8001.

2. Write command code 3310 to register 8000 to set the relay to external control.

3. Write command code 3321 to register 8000.

If you look in the “Relay Outputs” section of Table C– 2 on page 84, you’ll see that command code 3310 sets the relay to external control and command code 3321 is listed as the command used to energize a relay. Command codes 3310–3381 are for use with inputs and outputs.

Refer to “Register List Access” on page 79 for instructions on accessing the complete register list.

63230-500-225A2 PowerLogicTM Series 800 Power Meter 3/2011 Appendix C—Using the Command Interface

Using the Command Interface to Change Configuration Registers

You can also use the command interface to change values in selected metering-related registers, such as setting the time of day of the clock or resetting generic demand.

Two commands, 9020 and 9021, work together as part of the command interface procedure when you use it to change power meter configuration. You must first issue command 9020 to enter into setup mode, change the register, and then issue 9021 to save your changes and exit setup mode.

Only one setup session is allowed at a time. While in this mode, if the power meter detects more than two minutes of inactivity, that is, if you do not write any register values or press any buttons on the display, the power meter will time out and restore the original configuration values. All changes will be lost. Also, if the power meter loses power or communications while in setup mode, your changes will be lost.

The general procedure for changing configuration registers using the command interface is as follows:

1. Issue command 9020 in register 8000 to enter into setup mode.

2. Make changes to the appropriate register by writing the new value to that register. Perform register writes to all registers that you want to change. For instructions on reading and writing registers, see “Read and Write Registers” on page 26.

3. To save the changes, write the value 1 to register 8001.

NOTE: Writing any other value except 1 to register 8001 lets you exit setup mode without saving your changes.

4. Issue command 9021 in register 8000 to initiate the save and reset the power meter.

For example, the procedure to change the demand interval for current is as follows:

1. Issue command code 9020 in register 8000.

2. Write the new demand interval to register 1801.

3. Write 1 to register 8001.

4. Issue command code 9021 in register 8000.

Refer to “Register List Access” on page 79 for instructions on accessing the complete register list.

Conditional Energy

Power meter registers 1728–1744 are conditional energy registers.

Conditional energy can be controlled in one of two ways:

• Over the communications link, by writing commands to the power meter’s command

interface, or

• By a digital input—for example, conditional energy accumulates when the assigned

digital input is on, but does not accumulate when the digital input is off.

The following procedures explain how to set up conditional energy for command interface control and for digital input control. The procedures refer to register numbers and command codes. For a listing of command codes, see Table C–2 on page 84.

PowerLogic Appendix C—Using the Command Interface 3/2011

Series 800 Power Meter 63230-500-225A2

Command Interface Control

• Set Control—To set control of conditional energy to the command interface:

1. Write command code 9020 to register 8000.

2. In register 3227, set bit 6 to 1 (preserve other bits that are ON).

3. Write 1 to register 8001.

4. Write command code 9021 to register 8000.

• Start— To start conditional energy accumulation, write command code 6321 to register

8000.

• Verify Setup—To verify proper setup, read register 1794. The register should read 1,

indicating conditional energy accumulation is ON.

• Stop—To stop conditional energy accumulation, write command code 6320 to register

8000.

• Clear—To clear all conditional energy registers (1728-1747), write command code

6212 to register 8000.

Digital Input Control

• Set Control—To configure conditional energy for digital input control:

1. Write command code 9020 to register 8000.

2. In register 3227, set bit 6 to 0 (preserve other bits that are ON).

3. Configure the digital input that will drive conditional energy accumulation. For the appropriate digital input, write 3 to the Base +9 register.

4. Write 1 to register 8001.

5. Write command code 9021 to register 8000.

• Clear—To clear all conditional energy registers (1728–1747), write command code

6212 to register 8000.

• Verify Setup—To verify proper setup, read register 1794. The register should read 0

when the digital input is off, indicating that conditional energy accumulation is off. The register should read 1 when conditional energy accumulation is on.

Incremental Energy

The power meter’s incremental energy feature allows you to define a start time, end time, and time interval for incremental energy accumulation. At the end of each incremental energy period, the following information is available:

• Wh IN during the last completed interval (reg. 1748–1750)

• VARh IN during the last completed interval (reg. 1751–1753)

• Wh OUT during the last completed interval (reg. 1754–1756)

• VARh OUT during the last completed interval (reg. 1757–1759)

• VAh during the last completed interval (reg. 1760–1762)

• Date/time of the last completed interval (reg. 1763–1765)

• Peak kW demand during the last completed interval (reg. 1940)

• Date/Time of Peak kW during the last completed interval (reg. 1941–1943)

• Peak kVAR demand during the last completed interval (reg. 1945)

• Date/Time of Peak kVAR during the last completed interval (reg. 1946–1948)

• Peak kVA demand during the last completed interval (reg. 1950)

• Date/Time of Peak kVA during the last completed interval (reg. 1951–1953)

The power meter can log the incremental energy data listed above. This logged data provides all the information needed to analyze energy and power usage against present or future utility rates. The information is especially useful for comparing different time-of-use rate structures.

When using the incremental energy feature, remember that peak demands help minimize the size of the data log in cases of sliding or rolling demand. Shorter incremental energy periods make it easier to reconstruct a load profile analysis.

63230-500-225A2 PowerLogicTM Series 800 Power Meter

Start Time

End Time

1st Interval (7 hours) = 8:00 a.m. to 3:00 p.m

2nd Interval (7 hours) = 3:00 p.m. to 10:00 p.m 3rd Interval (2 hours) = 10:00 p.m. to 12:00 p.m

PLSD110149

3/2011 Appendix C—Using the Command Interface

Using Incremental Energy

Incremental energy accumulation begins at the specified start time and ends at the specified end time. When the start time arrives, a new incremental energy period begins. The start and end time are specified in minutes from midnight. For example:

Interval: 420 minutes (7 hours)

Start time: 480 minutes (8:00 a.m.)

End time = 1440 minutes (12:00 p.m.)

The first incremental energy calculation will be from 8:00 a.m. to 3:00 p.m. (7 hours) as illustrated in Figure C– 2. The next interval will be from 3:00 p.m. to 10:00 p.m., and the third interval will be from 10 p.m. to 12:00 p.m. because 12:00 p.m. is the specified end time. A new interval will begin on the next day at 8:00 a.m. Incremental energy accumulation will continue in this manner until the configuration is changed or a new interval is started by a remote master.

Figure C– 2: Incremental energy example

• Set up—To set up incremental energy:

1. Write command code 9020 to register 8000.

2. In register 3230, write a start time (in minutes-from-midnight).

3. For example, 8:00 am is 480 minutes.

4. In register 3231, write an end time (in minutes-from-midnight).

5. Write the desired interval length, from 0–1440 minutes, to register 3229.

6. If incremental energy will be controlled from a remote master, such as a

programmable controller, write 0 to the register.

7. Write 1 to register 8001.

8. Write command code 9021 to register 8000.

• Start—To start a new incremental energy interval from a remote master, write

command code 6910 to register 8000.

PowerLogic

Series 800 Power Meter 63230-500-225A2

Appendix C—Using the Command Interface 3/2011

Setting Up Individual Harmonic Calculations

The PM810 with a PM810LOG can perform up to the 31st harmonic magnitude and angle calculations for each metered value and for each residual value. The Power Meter can perform harmonic magnitude and angle calculations for each metered value and for each residual value. The harmonic magnitude for current and voltage can be formatted as either a percentage of the fundamental (THD), as a percentage of the rms values (thd), or rms. The harmonic magnitude and angles are stored in a set of registers: 13,200–14,608. During the time that the power meter is refreshing harmonic data, the power meter posts a value of 0 in register 3246. When the set of harmonic registers is updated with new data, the power meter posts a value of 1 in register 3246. The power meter can be configured to hold the values in these registers for up to 60 metering update cycles once the data processing is complete.

The power meter has three operating modes for harmonic data processing: disabled, magnitude only, and magnitude and angles. Because of the extra processing time necessary to perform these calculations, the factory default operating mode is magnitudes only.

To configure the harmonic data processing, write to the registers described in Table C– 4:

Table C–4: Registers for Harmonic Calculations

Reg No. Value Description

Harmonic processing;

3240 0, 1, 2

3241 0, 1, 2

3242 0, 1, 2

3243 10–60 seconds

3244 0–60 seconds

3245 0,1

0 = disabled

1 = magnitudes only enabled

2 = magnitudes and angles enabled

Harmonic magnitude formatting for voltage;

0 = % of fundamental (default)

1 = % of rms

2 = rms

Harmonic magnitude formatting for current;

0 = % of fundamental (default)

1 = % of rms

2 = rms

This register shows the harmonics refresh interval (default is 30 seconds).

This register shows the time remaining before the next harmonic data update.

This register indicates whether harmonic data processing is complete:

0 = processing incomplete

1 = processing complete

Refer to “Register List Access” on page 79 for instructions on accessing the complete register list.

63230-500-225A2 PowerLogicTM Series 800 Power Meter 3/2011 Appendix C—Using the Command Interface

Changing Scale Factors

The power meter stores instantaneous metering data in 16-bit single registers. A value held in each register must be an integer between –32,767 and +32,767. Because some values for metered current, voltage, and power readings fall outside this range, the power meter uses multipliers, or scale factors. This enables the power meter to extend the range of metered values that it can record.

The power meter stores these multipliers as scale factors. A scale factor is the multiplier expressed as a power of 10. For example, a multiplier of 10 is represented as a scale factor of 1, since 10

You can change the default value of 1 to other values such as 10, 100, or 1,000. However, these scale factors are automatically selected when you set up the power meter, either from the display or by using PowerLogic software.

If the power meter displays “overflow” for any reading, change the scale factor to bring the reading back into a range that fits in the register. For example, because the register cannot store a number as large as 138,000, a 138 kV system requires a multiplier of 10. 138,000 is converted to 13,800 x 10. The power meter stores this value as 13,800 with a scale factor of 1 (because 101=10).

Scale factors are arranged in scale groups. You can use the command interface to change scale factors on a group of metered values. However, be aware of these important points if you choose to change scale factors:

• We strongly recommend that you do not change the default scale factors, which are

automatically selected by PowerLogic hardware and software.

• When using custom software to read power meter data over the communications link,

you must account for these scale factors. To correctly read any metered value with a scale factor other than 0, multiply the register value read by the appropriate power of 10.

• As with any change to basic meter setup, when you change a scale factor, all min/max

and peak demand values should be reset.

=10; a multiplier of 100 is represented as a scale factor of 2, since 102=100.

Enabling Floating-point Registers

For each register in integer format, the power meter includes a duplicate set of registers in floating-point format. The floating point registers are disabled by default, but they can be turned ON by doing the following:

NOTE: See “Read and Write Registers” on page 26 for instructions on how to read and write registers.

1. Read register 11700 (Current Phase A in floating-point format). If floating-point registers are OFF, you will see -32,768.

2. Write command code 9020 to register 8000.

3. Write 1 to register 3248.

4. Write 1 to register 8001.

5. Write command code 9021 to register 8000.

6. Read register 11700. You will see a value of 1, which indicates floating-point registers are ON.

NOTE: Values such as current phase A are not shown in floating-point format on the display even though floating-point registers are ON. To view floating-point values, read the floating-point registers using the display or PowerLogic software.

Refer to “Register List Access” on page 79 for instructions on accessing the complete register list.

PowerLogic

Series 800 Power Meter 63230-500-225A2

Appendix C—Using the Command Interface 3/2011

Schneider Electric PM870, PM850, PM810, PM820 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

Chapter 1—Introduction

Topics Not Covered In This Manual

What is a Power Meter?

Power Meter Hardware

Power Meter With Integrated Display

Power Meter Without Display

Power Meter With Remote Display

Power Meter Parts and Accessories

Box Contents

Features

Firmware

Chapter 2—Safety Precautions

Chapter 3—Operation

Power Meter Display

How the Buttons Work

Changing Values

Menu Overview

Power Meter Setup

SETUP MODE Access

DATE Setup

TIME Setup

LANG (Language) Setup

COMMS (Communications) Setup

METER Setup

CTs Setup

PTs Setup

HZ (System Frequency) Setup

SYS (System Type) Setup

ALARM (Alarms) Setup

I/O (Input/Output) Setup

PASSW (Password) Setup

TIMER (Operating Time Threshold) Setup

ADVAN (Advanced) Power Meter Setup Features

ROT (Phase Rotation) Setup

E-INC (Incremental Energy Interval) Setup

THD Calculation Setup

VAR/PF Convention Setup

Lock Resets Setup

Alarm Backlight Setup

Bar Graph Setup

PQ Advanced Evaluation Setup

Power Demand Configuration Setup

Power Meter Resets

Initialize the Power Meter

Accumulated Energy Readings Reset

Accumulated Demand Readings Reset

Minimum/Maximum Values Reset

Display Mode Change

Accumulated Operating Time Reset

Power Meter Diagnostics

View the Meter Information

Read and Write Registers

View the Meter Date and TIme

Chapter 4—Metering Capabilities

Real-Time Readings

Min/Max Values for Real-time Readings

Power Factor Min/Max Conventions

Power Factor Sign Conventions

Demand Readings

Demand Power Calculation Methods

Demand Current

Predicted Demand

Peak Demand

Generic Demand

Input Metering Demand

Energy Readings

Energy-Per-Shift (PM810 with PM810LOG)

Configuration

Power Analysis Values

Chapter 5—Input/Output Capabilities

Digital Inputs

Demand Synch Pulse Input

Relay Output Operating Modes

Solid-state KY Pulse Output

2-wire Pulse Initiator