Rockwell Automation 21G PowerFlex 750-Series AC Drives Reference Manual - Manual (Page 29)

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
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.