ABB AC500-S Safety User Manual page 376

Configuration and programming
AC500-S Libraries > SafetyBlocks_PLCopen_AC500_v22.lib
Typical Timing Diagram
Fig. 121: Timing diagram for SF_SafetyRequest
The FB detects whether the actuator does not enter the Safe state within the monitoring time.
The FB detects whether the acknowledge signal is lost while the request is still active.
The FB detects a static Reset signal.
External FB errors:
There are no external errors, since there is no error bits/information provided by the generic actuator.
Error Behavior
In the event of an error, the S_SafetyActive output is set to FALSE.
An error must be acknowledged by a rising trigger at the Reset input. To continue the function block after this
reset, the S_OpMode request must be set to TRUE.
376 AC500-S 30.03.2017