ABB AC500-S Safety User Manual page 363

Typical Timing Diagram
Fig. 116: Timing diagram for SF_MutingPar_2Sensor (S_StartReset = TRUE, Reset = FALSE, S_Mutin-
gLamp = TRUE)
The FB detects the following error conditions:
n DiscTimeEntry has been set to value less than T#0s or greater than T#4s.
n MaxMutingTime has been set to a value less than T#0s or greater than T#10min.
n The discrepancy time for the S_MutingSwitch11/S_MutingSwitch12 sensor pair has been exceeded.
n The muting function (S_MutingActive = TRUE) exceeds the maximum muting time MaxMutingTime.
n Muting sensors S_MutingSwitch11,S_MutingSwitch12 are activated in the wrong order.
n Muting sequence starts without being enabled by MutingEnable
Static muting sensor signals.
n
n A faulty muting lamp is indicated by S_MutingLamp = FALSE.
n A static Reset condition is detected in state 8001 and 8003.
Error Behaviour
In the event of an error, the S_AOPD_Out and S_MutingActive outputs are set to FALSE. The DiagCode
output indicates the relevant error code and the Error output is set to TRUE.
A restart is inhibited until the error conditions are cleared and the Safe state is acknowledged with Reset by
the operator.
30.03.2017
Configuration and programming
AC500-S Libraries > SafetyBlocks_PLCopen_AC500_v22.lib
AC500-S 363