ABB AC500-S Safety User Manual page 320

Safety programmable logic controllers system

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Table of Contents

Configuration and programming

AC500-S Libraries > SafetyBlocks_PLCopen_AC500_v22.lib

Typical Timing Diagram

Fig. 112: Timing diagram for SF_GuardLocking

Static signals are detected at Reset. Errors are detected at the Guard switches.

Error Behavior

In the event of an error the S_GuardLocked and S_UnlockGuard outputs are set to FALSE, the DiagCode

output indicates the relevant error code, and the Error output is set to TRUE.

An error must be acknowledged by a rising trigger at the Reset input.