Application Technique
Safety Function: Actuator Subsystems – Stop Category 1 via
the PowerFlex 525 and PowerFlex 527 Drives with Safe
Torque-off
Products: Guardmaster Dual-input Safety Relay, Guardmaster Multifunction-delay Expansion Module, PowerFlex 525 Drive,
PowerFlex 527 Drive
Safety Rating: CAT. 3, PLd to ISO 13849-1: 2008
Topic Page
Important User Information 2
General Safety Information 3
Introduction 3
Safety Function Realization: Risk Assessment 3
Stop Safety Functions 4
Safety Function Requirements 4
Functional Safety Description 5
Bill of Material 6
Setup and Wiring 6
Configuration 11
Calculation of the Performance Level 13
Verification and Validation Plan 17
Additional Resources 22
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