Rockwell Automation 193-EC4 User Manual

User Manual

EC4 Current Monitoring Relay

Catalog Number

193-EC4

Important User Information

IMPORTANT

Solid-state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls (publication SGI-1.1 your local Rockwell Automation sales office or online at http://www.rockwellautomation.com/literature/ important differences between solid-state equipment and hard-wired electromechanical devices. Because of this difference, and also because of the wide variety of uses for solid-state equipment, all persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable.

In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment.

The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for actual use based on the examples and diagrams.

No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software described in this manual.

Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc., is prohibited.

Throughout this manual, when necessary, we use notes to make you aware of safety considerations.

WARNING: Identifies information about practices or circumstances that can cause an explosion in a hazardous environment, which may lead to personal injury or death, property damage, or economic loss.

available from

) describes some

ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence

SHOCK HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous voltage may be present.

BURN HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may reach dangerous temperatures.

Identifies information that is critical for successful application and understanding of the product.

Allen-Bradley, Rockwell Automation, and TechConnect are trademarks of Rockwell Automation, Inc.

Trademarks not belonging to Rockwell Automation are property of their respective companies.

Preface

IMPORTANT

Manual Objectives

Who Should Use This Manual

The purpose of this manual is to provide you with the necessary information to apply the EC4 Current Monitoring Relay with DeviceNet communications. Described in this manual are methods for installing, configuring, and troubleshooting.

Read this manual in its entirety before installing, operating, servicing, or initializing the EC4 Current Monitoring Relay.

This manual is intended for qualified personnel responsible for setting up and servicing these devices. You must have previous experience with and a basic understanding of communications technology, configuration procedures, required equipment, and safety precautions.

To make efficient use of the EC4 Current Monitoring Relay, you must be able to program and operate devices with communications and have a basic understanding of the EC4 Current Monitoring Relay’s parameter settings and functions. You should also understand DeviceNet network operations, including how slave devices operate on the network and communicate with a DeviceNet master.

Conventions

Reference Manuals

Parameter names are shown in italic typeface.

For SLC 500 and 1747-SDN information:

• DeviceNet Scanner Module Installation Instructions Publication 1747-IN058E-EN-P

• DeviceNet Scanner Module User Manual Publication 1747-UM655B-EN-P

For PLC5 and 1771-SDN information:

• DeviceNet Scanner Module Installation Instructions Publication 1771-5.14

• DeviceNet Scanner Module Configuration Manual Publication

1771-6.5.118

For MicroLogix/CompactLogic and 1769-ADN information:

• DeviceNet Module Installation Instructions Publication 1769-IN001B-EN-P

• DeviceNet Module User Manual Publication 1769-UM001B-EN-P

For ControlLogic and 1756-DNB information:

• DeviceNet Module Installation Instructions Publication 1756-IN566C-EN-P

• DeviceNet Module User Manual Publication DNET-UM004A-EN-P

Rockwell Automation Publication 193-UM011A-EN-P - September 2010 3

IMPORTANT

To install and implement a DeviceNet network:

• DeviceNet Media Design and Installation Guide Publication DNET-UM072_-EN-P

Read the DeviceNet Media Design and Installation Guide, Publication DNET-UM072_-EN-P, in its entirety before planning and installing a DeviceNet system. If the network is not installed according to this document, unexpected operation and intermittent failures can occur. If this manual is not available, please contact either the local Rockwell Automation Distributor or Sales Office and request a copy. Electronic copies may also be obtained via the Internet or from the Allen-Bradley Home Page at “www.ab.com.”.

4 Rockwell Automation Publication 193-UM011A-EN-P - September 2010

Preface

Manual Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Who Should Use This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Reference Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Table of Contents Chapter 1

Table of Contents

Product Overview

Installation and Wiring

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Catalog Number Explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Single-/Three-Phase Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Protection and Warning Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Current Monitoring Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Diagnostic Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Trip Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Inputs and Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Status Indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Test/Reset Button. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Node Address Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

DeviceNet Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Flash Memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Chapter 2

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Receiving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Unpacking/Inspecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Storing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Starter Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Starter Assembly Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Starter Approximate Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Separate Mount Adapter Approximate Dimensions . . . . . . . . . . . . . 21

Power Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Control and DeviceNet Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Terminal Designations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Control Terminals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

DeviceNet Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Grounding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Short-Circuit Ratings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Fuse Coordination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Typical Motor Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Three-Phase Direct-on-Line (D.O.L). . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Rockwell Automation Publication 193-UM011A-EN-P - September 2010 5

Table of Contents

Single-Phase Full-Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

External Line Current Transformer Application . . . . . . . . . . . . . . . . . . . . 28

Current Transformer Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Installation Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

External Ground Fault Sensor Application . . . . . . . . . . . . . . . . . . . . . . . . . 30

Power Cable Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Typical Control Circuit Wiring Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . 33

Full-Voltage Non-Reversing (with Network Control) . . . . . . . . . . . 34

External/Remote Reset (FRN 3.001 and later) . . . . . . . . . . . . . . . . . . 35

Chapter 3

Protective Trip and Warning Functions

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Trip Enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Warning Enable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Overcurrent Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Overcurrent Warning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Overcurrent Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Ground Fault Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Ground Fault Setting Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Ground Fault Trip. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Ground Fault Trip Inhibit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Ground Fault Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Undercurrent Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Undercurrent Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Undercurrent Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Communication Fault Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Comm Fault Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Comm Fault Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Communication Idle Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Comm Idle Trip. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Comm Idle Warning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Remote Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Preventive Maintenance Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Preventive Maintenance Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Queue Clearing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Chapter 4

DeviceNet Node Commissioning

6 Rockwell Automation Publication 193-UM011A-EN-P - September 2010

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Setting the Hardware Switches (Series B and later) . . . . . . . . . . . . . . 48

Using RSNetWorx for DeviceNet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Building and Registering an EDS File. . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Table of Contents

Using the Node Commissioning Tool of RSNetWorx

for DeviceNet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Produced and Consumed Assembly Configuration . . . . . . . . . . . . . . 54

Mapping to the Scanner’s Scan List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Chapter 5

Programmable Parameters

Current Monitoring Parameters

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Parameter Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Program Lock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Resetting to the Factory Default Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Parameter Group Listing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Advanced Setup Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Reset/Lock Group. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

DeviceNet Setup Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Output Setup Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

DeviceLogix Group. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Chapter 6

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Phase Current Reporting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Current Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Reporting Accuracy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Ground Fault Current Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Current Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Frequency Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Monitor Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Diagnostic Parameters

Trip History and Snapshot

Rockwell Automation Publication 193-UM011A-EN-P - September 2010 7

Chapter 7

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Monitor Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Chapter 8

Trip and Warning History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

TripWarn History Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Trip History Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Warning History Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Trip Snapshot. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Trip Snapshot Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Table of Contents

Chapter 9

Logic Controller Application Example with Explicit Messaging

Using DeviceLogix™

Troubleshooting

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

I/O Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Explicit Messaging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Reading Device Status using the Parameter Object Class (0x0F) . . 99

Reading Device Status using the Control Supervisor Object Class

(0x29) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Reading a Group of Parameters using the Status

Object Class (0x0375) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Chapter 10

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

DeviceLogix Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

DeviceLogix Programming Example. . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Chapter 11

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Advisory LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Trip/Warn LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Network Status LED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

OUT A & OUT B LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

IN 1,2,3 & 4 LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Power-Up Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

DeviceNet Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Power-Up Reset Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Run Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Recoverable Error Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Unrecoverable Error Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Resetting a Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Trip/Warn LED Troubleshooting Procedures. . . . . . . . . . . . . . . . . . . . . 115

DeviceNet Troubleshooting Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . 116

Loss of Node Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

Input and Output Troubleshooting Procedures. . . . . . . . . . . . . . . . . . . . 116

Appendix A

Specifications

8 Rockwell Automation Publication 193-UM011A-EN-P - September 2010

Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Electromagnetic Compatibility Specifications. . . . . . . . . . . . . . . . . . . . . . 121

Functionality Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Table of Contents

Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Appendix B

DeviceNet Information

Electronic Data Sheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Product Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

DeviceNet Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Identity Object – Class Code 0x01. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

Message Router – Class Code 0x02 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

DeviceNet Object – Class Code 0x03 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

Assembly Object – Class Code 0x04 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

Output Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

Input Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

Connection Object – Class Code 0x05. . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

Discrete Input Point Object – Class Code 0x08. . . . . . . . . . . . . . . . . . . . 133

Discrete Output Point Object – Class Code 0x09. . . . . . . . . . . . . . . . . . 133

Parameter Object – Class Code 0x0F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

Parameter Group Object – Class Code 0x10. . . . . . . . . . . . . . . . . . . . . . . 136

Control Supervisor Object – Class Code 0x29 . . . . . . . . . . . . . . . . . . . . . 140

Acknowledge Handler Object – 0x2B. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

DeviceNet Interface Object – Class Code 0xB4 . . . . . . . . . . . . . . . . . . . . 144

ODVA Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

Logic Supervisor Object - CLASS CODE 0x030E . . . . . . . . . . . . . . . . . 146

Status Object - CLASS CODE 0x0375. . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

CE Compliance

Two-Speed Applications

Accessories

Index

Appendix C

European Communities (EC) Directive Compliance . . . . . . . . . . . . . . . 149

EMC Directive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

Low Voltage Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

Appendix D

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151

External Control Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151

Output Control Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151

Appendix E

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153

Rockwell Automation Publication 193-UM011A-EN-P - September 2010 9

Product Overview

LED Status Indicators

DeviceNet Port

Input Terminals

Test/Reset Button

Node Address Switches (Series B and later)

Output and PTC Te rm in al s

Chapter

Introduction

Description

This chapter provides a brief overview of the features and functionality of the EC4 Current Monitoring Relay.

The EC4 Current Monitoring Relay is a multi-function solid-state microprocessor-based electronic current monitoring relay for loads rated from

0.4…5000 A.

Figure 1 - EC4 Feature Overview

Rockwell Automation Publication 193-UM011A-EN-P - September 2010 11

Chapter 1 Product Overview

193 - EC4 B B

Bulletin Number

Typ e EC4 EC4

Current Rating (Amps) P 0.4…2.0 A1…5 B3…15 C5…25 D9…45 E 18…90 Z 9…5000

Bulletin 100 Contactor Size

B C09…C23 D C30…C43 E C60…C85 Z Panel Mount, CT fed

Catalog Number Explanation

Single-/Three-Phase Operation

Figure 2 - Catalog Number Explanation

The EC4 Current Monitoring Relay is factory-programmed to monitor three-phase current. The installer can easily change to single-phase operation by accessing and changing the setting of Parameter 27, Single/Three Ph. Refer to Chapter 2 — Installation and Wiring – for typical motor connections.

Protection and Warning Functions

Current Monitoring Parameters

The EC4 Current Monitoring Relay provides the following protection and warning functions:

• L(1-3) Undercurrent

• L(1-3) Overcurrent

• L(1-3) Loss

• Communication Fault/Idle

• Number of Starts (warning only)

• Number of Hours (warning only)

Refer to Chapter 3 — Protective Trip and Warning Functions and Chapter 5 — Programmable Parameters for further explanation of these functions.

The EC4 Current Monitoring Relay allows the user to monitor the following operational data over the DeviceNet network:

• Individual phase currents (in amperes)

• Ground fault current (in amperes)

Refer to Chapter 6 — Current Monitoring Parameters for further information.

12 Rockwell Automation Publication 193-UM011A-EN-P - September 2010

Product Overview Chapter 1

Diagnostic Parameters

Trip Relay

Inputs and Outputs

The EC4 Current Monitoring Relay allows the user to monitor the following diagnostic information over the DeviceNet network:

• Device status

• Tri p s tat us

• Wa rn in g s ta tu s

• Elapsed Time

• Operating Hours

• History of past 5 trips and warnings

Refer to Chapter 7 — Diagnostic Parameters for detailed information of these parameters.

When the EC4 Current Monitoring Relay is in the unpowered state, the trip relay contact is open. The trip relay contact closes approximately 2.35 seconds after power is applied if no trip condition exists.

In addition to the trip relay, the EC4 Current Monitoring Relay provides 4 inputs and 2 outputs. the inputs are rated 24V DC only. For 120V AC inputs, add the AC input interface module, Cat. No. 193-EIMD

The status of each can be monitored over the DeviceNet network through parameter 21, Device Status, or one of the input assemblies. Additionally, the outputs can be controlled over the network by using one of the output assemblies. Refer to Appendix B — DeviceNet Information for listings of the available input and output assemblies.

The EC4 Current Monitoring Relay offers added flexibility by providing the capability to perform control functions with the inputs and outputs through DeviceLogix.

The EC4 Current Monitoring Relay inputs are independently configurable for Trip Reset, Remote Trip, L1 Loss Arm, L2 Loss Arm, L3 Loss Arm, L1L2 Loss Arm, L2L3 Loss Arm, L1L3 Loss Arm, L1L2L3 Loss Arm, and normal operation.

ATTENTION: If the outputs are being commanded via an explicit message, ensure that there is no established I/O connection that is actively controlling them, and that the explicit message connection has a non-zero expected packet rate (EPR) setting.

Rockwell Automation Publication 193-UM011A-EN-P - September 2010 13

Chapter 1 Product Overview

NETWORK STATUS

TRIP / WARN

OUT A OUT B IN 1 IN 3

IN 2 IN 4

ATTENTION: The state of the outputs during a Protection Fault, DeviceNet Comm Fault, or a DeviceNet Comm Idle may be dependent on the OUTA or OUTB Pr FltState, Pr FltValue, Dn FltState, Dn FltValue, Dn IdlState, and Dn IdlValue programmable parameters. For details refer to the Output Setup

Group section of Chapter 5 – Programmable Parameters.

ATTENTION: The EC4 Current Monitoring Relay’s output control

firmware latches “OUT A” and “OUT B” closed upon receipt of a network “close” command. The outputs will maintain the commanded closed state until receipt of a network “open” command. Parameters “OutX Pr FltState” and “OutX Pr FltValue”, found in the EC4 Current Monitoring Relay’s Output Setup group, allow flexibility concerning the operation of the outputs in the event of a trip. Factory default settings cause

the outputs to open upon occurrence of a trip. EC4 outputs that were closed prior to a trip will re-close upon trip reset, provided that a network “open” command is not received first.

Status Indication

The EC4 Current Monitoring Relay provides the following LED indicators:

NETWORK STATUS: This green/red LED indicates the status of the network connection. See Chapter 11 — Troubleshooting for the possible LED indications and the associated definitions.

TRIP / WARN: This red/amber LED flashes an amber code under a warning condition and a red code when tripped. The warning or trip code is indicated by the number of flashes in sequence. Refer to the side label on the product for trip/warning codes or Chapter 11 — Troubleshooting.

OUT A and B: These amber LEDs illuminate when the output contacts are commanded closed.

IN 1…4: These amber LEDs illuminate when the user-connected device contact is closed.

Test/Reset Button

14 Rockwell Automation Publication 193-UM011A-EN-P - September 2010

The Test/Reset button located on the front of the EC4 Current Monitoring Relay allows the user to perform the following:

Product Overview Chapter 1

Te s t : If Tes t E na bl e is enabled, the trip relay contact will open if the EC4 Current Monitoring Relay is in an un-tripped condition and the Test/Reset button is pressed. The Test/Reset button must be pressed for a minimum of 2 seconds to activate the test function.

Reset: The trip relay contact will close if the EC4 Current Monitoring Relay is in a tripped condition, the cause of the trip is no longer present, and the Test/Reset button is pressed.

ATTENTION: The “Test” function associated with the Test/Reset button is enabled by default. Activating it while a motor is operating will cause the starting contactor to drop out and stop motor operation.

Node Address Switches

DeviceNet Compatibility

Flash Memory

The node address switches located on the front of the EC4 Current Monitoring Relay provides physical means for setting the device node address value. Switch settings greater than 63 allow the node address to be software configured.

The EC4 Current Monitoring Relay supports the following DeviceNet functionality:

• Polled I/O messaging

• Change-of-state / cyclic messaging

• Explicit messaging

• Group 4 off-line node recovery messaging

• Full parameter object support

• Auto-baud rate identification

• Configuration consistency value

• UCMM (Unconnected Message Manager)

• DeviceLogix component technology

The EC4 Current Monitoring Relay incorporates flash memory. This facilitates updating of the product firmware as new revisions are released.

Rockwell Automation Publication 193-UM011A-EN-P - September 2010 15

Installation and Wiring

Chapter

Introduction

Receiving

Unpacking/Inspecting

Storing

This chapter provides instructions for receiving, unpacking, inspecting, and storing the EC4 Current Monitoring Relay. Installation and wiring instructions for common applications are also included.

It is the responsibility of the user to thoroughly inspect the equipment before accepting the shipment from the freight company. Check the item(s) received against the purchase order. If any items are damaged, it is the responsibility of the user not to accept delivery until the freight agent has noted the damage on the freight bill. Should any concealed damage be found during unpacking, it is again the responsibility of the user to notify the freight agent. The shipping container must be left intact and the freight agent should be requested to make a visual inspection of the equipment.

Remove all packing material from around the EC4 Current Monitoring Relay. After unpacking, check the item’s nameplate catalog number against the purchase order.

The EC4 Current Monitoring Relay should remain in its shipping container prior to installation. If the equipment is not to be used for a period of time, it must be stored according to the following instructions in order to maintain warranty coverage:

• Store in a clean, dry location.

• Store within an ambient temperature range of -40°C…+85°C

(-40°…+185°F).

• Store within a relative humidity range of 0…95%, non-condensing.

• Do not store where the device could be exposed to a corrosive atmosphere.

• Do not store in a construction area.

General Precautions

In addition to the specific precautions listed throughout this manual, the following general statements must be observed.

Rockwell Automation Publication 193-UM011A-EN-P - September 2010 16

Installation and Wiring Chapter 2

ATTENTION: The EC4 Current Monitoring Relay contains ESD (electrostatic discharge) -sensitive parts and assemblies. Static control precautions are required when installing, testing, servicing, or repairing this assembly. Component damage may result if ESD control procedures are not followed. If you are not familiar with static control procedures, refer to Allen-Bradley publication 8200-4.5.2, “Guarding Against Electrostatic Damage”, or any other applicable ESD protection handbook.

ATTENTION: An incorrectly applied or installed EC4 Current Monitoring Relay can result in damage to the components or reduction in product life. Wiring or application errors, such as supplying incorrect or inadequate DeviceNet supply voltage, connecting an external supply voltage to the input, or operating/storing in excessive ambient temperatures may result in malfunction of the EC4 Current Monitoring Relay.

ATTENTION: Only personnel familiar with the EC4 Current Monitoring Relay and associated machinery should plan to install, start up, and maintain the system. Failure to comply may result in personal injury and/or equipment damage.

Starter Installation

ATTENTION: The purpose of this user manual is to serve as a

guide for proper installation. The National Electrical Code and any other governing regional or local code will overrule this information. Rockwell Automation cannot assume responsibility for the compliance or proper installation of the EC4 Current Monitoring Relay or associated equipment. A hazard of personal injury and/or equipment damage exists if codes are ignored during installation.

ATTENTION: The Earth Ground terminal of the EC4 Current Monitoring Relay shall be connected to a solid earth ground via a low-impedance connection.

The following figures and tables illustrate the starter assembly instructions and approximate dimensions.

Rockwell Automation Publication 193-UM011A-EN-P - September 2010 17

Chapter 2 Installation and Wiring

CLICK

➊

➋

➌

2.5 N•m 22 lb•in

Starter Assembly Instructions

Figure 3 - 100-C09…C43 Starter Assembly Instructions (for use with Cat. Nos. 193-EC_ _B and -EC_ _D)

18 Rockwell Automation Publication 193-UM011A-EN-P - September 2010

Installation and Wiring Chapter 2

➊

➋

4 N•m 35 lb•in

Figure 4 - 100-C60…C85 Starter Assembly Instructions (for use with Cat. No. 193-EC_ _E)

Rockwell Automation Publication 193-UM011A-EN-P - September 2010 19

Chapter 2 Installation and Wiring

D2D2

D1D1

F1F1

E2E2

B1B1

Starter Approximate Dimensions

Approximate dimensions are shown in millimeters (inches). Dimensions are not intended to be used for manufacturing purposes.

Figure 5 - Bulletin 109 Approximate Starter Dimensions

Table 1 - Bulletin 109 Approximate Starter Dimensions

Overload Cat. No.

193-EC_ _B 100-C09, -C12

193-EC_ _D 100-C30, -C37 45 (1-25/32) 188.3 (7-13/32) 207.7 (8-11/64) 145.1

193-EC_ _D 100-C43 54 (2-1/8) 188.3 (7-13/32) 207.7 (8-11/64) 145.1

193-EC_ _E 100-C60, -C72,

Overload Cat. No.

193-EC_ _B 100-C09, -C12 -C16,

193-EC_ _D 100-C30, -C37 53.2 (2-3/32) 60 (2-23/64) 35 (1-3/8) 104 (4-3/32) 2 (5/64) Ø4.2 (11/64Ø) 193-EC_ _D 100-C43 62.2 (2-7/16) 60 (2-23/64) 45 (1-25/32) 107 (4-7/32) 2 (5/64) Ø4.2 (11/64Ø) 193-EC_ _E 100-C60, -C72, -C85 80.2 (3-9/64) 100 (3-15/16) 55 (2-11/64) 125.5 (4-15/16) 2 (5/64) Ø5.5 (7/32Ø)

Contactor Cat. No.

Width A Height B B1 Depth C E1 E2

without

with 193-EIMD

193-EIMD

-C16, -C23

45 (1-25/32) 188.3 (7-13/32) 207.7 (8-11/64) 145.1

(5-23/32)

107 (4-7/32) 11.4 (29/64) 67.9

(5-23/32)

107 (4-7/32) 11.4 (29/64) 67.9

(5-23/32)

-C85

72 (2-53/64) 236.1 (9-19/64) 255.5 (10-1/16) 173.2

(6-13/16)

124.6 (4-29/32)

11.4 (29/64) 89.8

Contactor Cat. No. F1 D1 D2 H J ØD

53.2 (2-3/32) 60 (2-23/64) 35 (1-3/8) 85.1 (3-23/64) 2 (5/64) Ø4.2 (11/64Ø)

-C23

(2-43/64)

(3-17/32)

20 Rockwell Automation Publication 193-UM011A-EN-P - September 2010

Installation and Wiring Chapter 2

(1-25/32)

159.3

(6-17/64)

7.3

(9/32)

135

(5-5/16)

6.1

(1/4)

100.5

(3-31/32)

ø 4.4

(11/64 ø)

11.4

(29/64)

(1-3/16)

115

(4-17/32)

115

(4-17/32)

11.4

(29/64)

(1-3/16)

(1-25/32)

7.3

(9-32)

135

(5-5/16)

154.2

(6-5/64)

ø 4.4

(11/64 ø)

100.5

(3-31/32)

6.1

(1/4)

Separate Mount Adapter Approximate Dimensions

Approximate dimensions are shown in millimeters (inches). Dimensions are not intended to be used for manufacturing purposes.

Figure 6 - 193-ECPM1 Panel Mount Adapter Approximate Dimensions (for use with Cat. No. 193-EC_ _B)

Figure 7 - 193-ECPM2 Panel Mount Adapter Approximate Dimensions (for use with Cat. No. 193-EC_ _D and 193-EC_ _Z)

Rockwell Automation Publication 193-UM011A-EN-P - September 2010 21

Chapter 2 Installation and Wiring

71.7

(2-53/64)

131.2

(5-11/64)

(19/32)

(3 - 1/32)

ø 5.5

(7/32 ø)

(13/64)

(2-23/64)

11.4

(29/64)

150.5

(5-15/16)

130

(5-1/8)

(3-1/32)

155.1

(6-7/64) w/

193-EIMD

Figure 8 - 193-ECPM3 Panel Mount Adapter Approximate Dimensions (for use with Cat. No. 193-EC_ _E)

22 Rockwell Automation Publication 193-UM011A-EN-P - September 2010

Figure 9 - Wire Size and Torque Specifications

Installation and Wiring Chapter 2

Power Terminals

Table 2 - Power Terminal Wire Size and Torque Specification

Cat. No.

Stranded/Solid AWG

Single Conductor Tor qu e Multiple

Conductor Tor qu e

Flexible-Stranded with Ferrule

Metric

Single Conductor Tor qu e Multiple

Conductor Tor qu e

Coarse-Stranded/Solid Metric

Single Conductor Tor qu e Multiple

Conductor Tor qu e

193-EC

_ _B, -EC_ _D 193-EC_ _E

#14...6 AWG 22 lb-in #10...6 AWG 30 lb-in

2.5...16 mm

2.5 N•m

6...10 mm

3.4 N•m

2.5...25 mm

2.5 N•m

6...16 mm

3.4 N•m

#12...1 AWG 35 lb-in #6...2 AWG 35 lb-in

4...35 mm

4 N•m

4...25 mm

4 N•m

4...50 mm

4 N•m

4...35 mm

4 N•m

Rockwell Automation Publication 193-UM011A-EN-P - September 2010 23

Chapter 2 Installation and Wiring

Control and DeviceNet Terminals

Table 3 - Control and DeviceNet Terminal Wire Size and Torque Specification

Cat. No. All Types

Stranded/Solid AWG

Flexible-Stranded with Ferrule Metric

Coarse-Stranded/Solid Metric

Table 4 - Maximum Wire Lengths (Input)

Single Conductor Multiple Conductor To rq ue

24...12 AWG

24...16 AWG 5 lb-in

0.25...2.5 mm

0.5...0.75 mm

0.55 Nm

0.2...4.0 mm

0.2...1.5 mm

0.55 Nm

2 2

Terminal Designations

Min. Cross Section

Max. Length ➊

mm AWG 20 18 16 14 12 m 160 250 400 600 1000 ft 525 825 1300 1950 3200

0.5 0.75 1.5 2.5 4.0

For reliable input signal processing, input wiring should be routed in raceways separate from power cabling.

Table 5 - Ground Fault Sensor Terminals (S1 and S2)

Wire type Shielded, twisted pair Cross section

To rq ue

0.2…4.0 mm

0.55 N•m (5 lb-in.)

(#24…12 AWG)

Control Terminals

The following table defines the EC4 Current Monitoring Relay control terminal designations.

Table 6 - Control Terminal Designation

Terminal Designation

1 IN 1 General-purpose sinking input number 1 2 IN 2 General-purpose sinking input number 2 3 IN 3 General-purpose sinking input number 3 4 IN 4 General-purpose sinking input number 4 5 V+ +24V DC supply for inputs 6V+

Reference Description

End Earth Ground

➊

13/14 OUT A Output A 23/24 OUT B Output B

24 Rockwell Automation Publication 193-UM011A-EN-P - September 2010

Table 6 - Control Terminal Designation

Installation and Wiring Chapter 2

Terminal Designation

95/96 Trip Relay Trip Relay IT1/IT2 — — S1/S2 — External ground fault sensor input

➊ An earth ground connection to this terminal will assist in obtaining compliance with Electromagnetic

Compatibility requirements.

Reference Description

DeviceNet Terminals

The following table defines the DeviceNet connector terminal designations.

Table 7 - DeviceNet Terminal Designation

Terminal Signal Function Color

1V-CommonBlack 2 CAN_L Signal Low Blue 3 Drain Shield Non-insulated 4 CAN_H Signal High White 5 V+ Power Supply Red

Grounding

Short-Circuit Ratings

The following grounding recommendations are provided to ensure Electromagnetic Compatibility compliance during installation:

• The earth ground terminal of the EC4 Current Monitoring Relay shall be connected to a solid earth ground via a low-impedance connection

• Installations employing an external ground fault sensor shall ground the cable shield at the sensor with no connection made at the EC4 Current Monitoring Relay

The EC4 Current Monitoring Relay is suitable for use on circuits capable of delivering not more than the RMS symmetrical amperes listed in the following tables.

Table 8 - UL Short-Circuit Ratings

Cat. No. Maximum Available Fault

_ _B

193-EC 193-EC

_ _D _ _E

193-EC

_ _Z

193-EC

Current [A]

5,000 600 5,000 600 10,000 600 5,000 600

Maximum Voltage [V]

Rockwell Automation Publication 193-UM011A-EN-P - September 2010 25

Chapter 2 Installation and Wiring

Table 9 - IEC Short-Circuit Ratings

Fuse Coordination

Cat. No. Prospective Current

193-EC_ _B

_ _D

193-EC 193-EC_ _E

Ir [A]

1,000 100,000 690 3,000 100,000 690 5,000 100,000 690

Conditional Short Circuit Current I

[A]

Maximum Voltage [V]

The following table illustrates the Type I and Type II fuse coordination when used in conjunction with Bulletin 100-C contactors.

Table 10 - Type I and Type II Fuse Coordination with 100-C and 100-D Contactors

Overload Cat. No.

193-EC_ _B

_ _D

193-EC

_ _E

193-EC

Contactor Cat. No.

100-C09 1,000 100,000 20 20 100-C12 1,000 100,000 25 25 100-C16 1,000 100,000 35 35 100-C23 3,000 100,000 40 40 100-C30 3,000 100,000 60 60 100-C37 3,000 100,000 80 80 100-C43 3,000 100,000 90 90 100-C60 3,000 100,000 125 125 100-C72 5,000 100,000 150 150 100-C85 5,000 100,000 175 175

Prospective Current

[A]

Conditional Short Circuit Current

Iq [A]

Type I Class J or CC [A]

Type II Class J or CC [A]

Typical Motor Connections

ATTENTION: Select the motor branch circuit protection that

complies with the National Electrical Code and any other governing regional or local codes.

Three-Phase Direct-on-Line (D.O.L)

The following figure illustrates the EC4 Current Monitoring Relay typical motor connections in a three-phase D.O.L application.

26 Rockwell Automation Publication 193-UM011A-EN-P - September 2010

Figure 10 - Three-Phase D.O.L Wiring Diagram

S.C.P.D.

E3 / E3 Plus

L1 L2 L3

2/T1 4/T2 6/T3

Installation and Wiring Chapter 2

Single-Phase Full-Voltage

The following figure illustrates the EC4 Current Monitoring Relay Typical motor connections in a single-phase full voltage application.

Rockwell Automation Publication 193-UM011A-EN-P - September 2010 27

Chapter 2 Installation and Wiring

IMPORTANT

S.C.P.D.

E3 / E3 Plus

L1 L2

2/T1 4/T2 6/T3

T1 T2

Figure 11 - Single-Phase Full-Voltage Wiring Diagram

External Line Current Transformer Application

Parameter 27, Single/Three Ph, should be set to single-phase.

Traditional single-phase wiring (connecting T2 to L3) will result in a vector imbalance of current flowing through the EC4 Current Monitoring Relay. This will result in inaccurate ground fault reporting and protection.

EC4 Current Monitoring Relays are designed for use with separately mounted, customer-supplied line current transformers (CTs) as required in higher-current applications. The FLA setting range is 9…5000 A for these units, with a legal setting range per current transformer. Parameter 78, CT Ratio, is provided for setting the current transformer ratio to be installed.

Current Transformer Specifications

The 193-EC_ZZ current monitoring relays are intended for use with CTs with a secondary current rating of 5 A. The installer shall provide one CT for each motor phase and shall connect the CT’s secondary leads to the appropriate EC4 Current Monitoring Relay power terminals as shown in . The CTs shall have an appropriate ratio rating as detailed in Table 3.1. Additionally, the CT shall be selected to be capable of providing the required VA to the secondary load, which includes the EC4 Current Monitoring Relay burden of 0.1 VA at the rated

28 Rockwell Automation Publication 193-UM011A-EN-P - September 2010

Installation and Wiring Chapter 2

secondary current and the wiring burden. Finally, the CT shall be rated for protective relaying to accommodate the high inrush currents associated with motor startup and shall have an accuracy of

≤±2% over its normal operating

range. Typical CT ratings include:

ANSI (USA) Class C5 B0.1 CSA (Canada) Class 10L5 IEC (Europe) 5 VA Class 5P10

ATTENTION: The improper selection of a current transformer can result in the EC4 Current Monitoring Relay reporting inaccurate motor operational data, and possible motor damage. The selected current transformer must be rated for protective relaying applications.

Installation Instructions

Cat. No. 193-EC_ZZ current monitoring relays are designed to be installed in cat. no. 193-ECPM2 panel mount adapters and connected to separately mounted current transformers. For panel mount adapter assembly, refer to the instructions included with the panel mount adapter.The EC4 Current Monitoring Relay must be mounted a distance equal to or greater than six times the cable diameter (including insulation) from the nearest current-carrying conductor or current transformer. For applications employing multiple conductors per phase, the diameter of each cable should be added and multiplied by six to determine the proper placement distance for the EC4 Current Monitoring Relay.

Figure 12 - Cat. No. 193-EC_ZZ Current Monitoring Relay Mounting Placement

Primar

urren

Transformer

E3 Overloa Rela

ATTENTION: Placement of the EC4 Current Monitoring Relay closer than the recommended distance of six times the cable diameter may compromise its current reporting and protection capabilities.

Rockwell Automation Publication 193-UM011A-EN-P - September 2010 29

Chapter 2 Installation and Wiring

3E3

/1L2/3

3/6

/1L2/3L3/5

Figure 13 - External CT Connection Diagrams

External Ground Fault Sensor Application

Primar

urren

Transformer

Primar

urren

Transformer

T1/2T2/4T

EC4 Current Monitoring Relays are intended to provide ground fault protection when used with the Cat. No. 193-CBCT_ external ground fault (core balance) sensor. The ground fault sensor mounts separately from the EC4 current monotoring relay and must be placed within three meters of it. The customer-supplied cable for wiring the ground fault sensor to the EC4 should meet the specifications outlined in Table 5.

Power Cable Installation Instructions

1. All power cables (including the neutral when used) must pass through the sensor window. The equipment ground conductor (the conductor used to carry the non-current-carrying metal parts of equipment, as defined by Article 100 of the NEC) must not pass through the sensor window.

2. The power cables through the sensor window should be straight, tightly bundled, centered in the window, and perpendicular to the sensor for a length equal to or greater than six times the cable diameter (including insulation) from the sensor.

3. All other conductors with available fault currents in excess of 1 000 A should be placed a distance equal to or greater than six times the cable diameter (including insulation) from the sensor.

4. The power cables of the branch circuit to be protected by the EC4 Current Monitoring Relay must not be grounded on the load side of the ground fault sensor.

5. If the power cables are enclosed in a conducting jacket, the jacket must be grounded on the line side of the sensor. The jacket must not pass through the sensor window, but must be cut at the window and joined with a conductor that passes outside the sensor window.

30 Rockwell Automation Publication 193-UM011A-EN-P - September 2010

Installation and Wiring Chapter 2

IMPORTANT

L2 L2

L3 L1

The spacer is a short (approximately 10 times the cable diameter in length) piece of cable with no connections to any terminal.

6. The power system may be solidly grounded or grounded through an impedance at its source as long as the impedance allows a magnitude of current to flow that is within the 20 mA…5 A operational range of the EC4 Current Monitoring Relay.

Figure 14 - Ground Fault Sensor Mounting Placement

GF Sensor

90˚

Power Cables

Figure 15 - Power Cable Configuration — Two Cables per Phase

Rockwell Automation Publication 193-UM011A-EN-P - September 2010 31

Figure 16 - Ground Fault Sensor Wiring to the EC4 Current Monitoring Relay

L2 L3L1

S1 S2

E3 Plus Overload Relay

Motor

Cat. No. 193-CBCT_ Ground Fault Sensor

The shield of the twisted pair cable must be connected to earth ground at the sensor, with no connection made at the EC4 Current Monitoring Relay.

Maximum length of the shielded cable is 100 ft. All control terminals are for copper wire only in sizes #12…24 AWG. Ring lug termination is required for the ground sensor terminals of Cat. Nos. 193-CBCT2 and larger. Sensor fastener torque: 26…30 lb-in. Cat. No. 193-CBCT1 wires should be twisted before termination by applying one twist per inch.

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