ABB AC500-S Safety User Manual page 383

Fig. 123: Timing diagram for SF_OutControl: S_StartReset = TRUE
The following conditions force a transition to the Error state:
n Invalid static Reset signal in the process.
n Invalid static ProcessControl signal.
n ProcessControl and Reset are incorrectly interconnected due to programming error.
Error Behavior
In the event of an error, the S_OutControl output is set to FALSE and remains in this safe state.
To leave the Reset, Init or Lock error states, the Reset input must be set to FALSE. To leave the Control error
state, the ProcessControl input must be set to FALSE.
After transition of S_SafeControl to TRUE, the optional startup inhibit can be reset by a rising edge at the
Reset input.
After block activation, the optional startup inhibit can be reset by a rising edge at the Reset input.
30.03.2017
Configuration and programming
AC500-S Libraries > SafetyBlocks_PLCopen_AC500_v22.lib
AC500-S 383