Festo CAMC-G-S3 Manual page 119

2 Product description of safety module CAMC-G-S3
Please note
When a safety condition is violated, the error can only be acknowledged when the
status variables of the drive are once more in the approved range.
Example - Violation of SOS:
After SOS has been requested, the axle is moved outside the tolerance range -> The error [54-3], SOS
violation, is generated. The error can only be acknowledged when:
– the axle has been moved back into the permitted range or (alternatively)
– the request of the SOS safety function was terminated (restart).
The result of the SOS violation is that another safety function, in this example SS1, is executed as an
error response.
The following sequence is required for a restart after an "SOS violation":
1. Actuation of Restart
–> Terminates the SOS function, SS1 (from error response) continues to be executed
2. Error acknowledgement
–> Deletes the error "SOS violation"
3. Restart
–> Terminates the safety function SS1 –> axle/motor can restart
Errors of the following safety functions can also be acknowledged when a safety function
has been requested:
STO, SS1, SBC, USF/SSF in all three versions SLS, SSR, SSM.
Festo – GDCP-CAMC-G-S3-EN – 1406NH – English 119