Reference Manual Owner's manual

Rockwell Automation Publication 750-RM001F-EN-P - February 2012 29

Chapter 3

Installation and Wiring

Introduction

This chapter provides details on connecting devices and wiring the PowerFlex

safety option board.

General Safety Information

Observe all electrical safety regulations stipulated by the appropriate technical

authorities.

Refer to the PowerFlex 750-Series AC Drive Installation Instructions,

publication 750-IN001

, for more information.

Power Supply Requirements

The external power supply must conform to the Directive 2006/95/EC Low

Voltage, by applying the requirements of EN61131-2 Programmable Controllers,

Part 2 - Equipment Requirements and Tests and one of the following:

• EN60950 - SELV (Safety Extra Low Voltage)

• EN60204 - PELV (Protective Extra Low Voltage)

• IEC 60536 Safety Class III (SELV or PELV)

• UL 508 Limited Voltage Circuit

• 24V DC ±10% must be supplied by a power supply that complies with

IEC/EN60204 and IEC/EN 61558-1.

For planning information, refer to the guidelines in Industrial Automation

Wiring and Grounding Guidelines, publication 1770-4.1

Topic Page

General Safety Information 29

Power Supply Requirements 29

Set Safety Enable Circuitry 30

Install the PowerFlex Safety Option Module 31

Terminal Connections 32

Compatible Encoders 33

Connect an Encoder 33

ATTENTION: The safety option is intended to be part of the safety-related

control system of a machine. Before installation, a risk assessment should be

performed to determine whether the specifications of this safety option are

suitable for all foreseeable operational and environmental characteristics for

the system to which it is to be installed.

ATTENTION: Make sure that the electrical power supplied to the PowerFlex

750-Series drive is switched off before installing the safety option or making

connections.