Festo CAMC-G-S3 Manual page 116

2 Product description of safety module CAMC-G-S3
Violation of safety conditions
The "Safety condition violated" of the individual safety functions are combined into a common error
message or a common warning message, depending on the parameterised error response. This can
control the signal relay, for example. The common messages themselves do not generate an error
response.
The error response is specified individually for each safety function è Sections 4.6.12 and B.2.
An error is triggered once on the first violation of the safety condition after the request of the safety
function. A repeated violation of the safety condition will only generate a new error message after the
error has been acknowledged.
The "Safety condition violated" output displays the current status. Example:
1. SLS is requested.
2. Speed outside the approved range } Error message, output active.
3. Speed back in approved range } Output becomes inactive.
4. Speed again outside the approved range } Output active, no new error message.
Reaction to faulty status variables
As long as a safety function is not requested, the validity of the input variables (e.g. speed signal, signal
of idle detection, etc.) is neither monitored nor checked.
Whilst a safety function is requested or implemented, the validity of the input variables is monitored. If
an error is detected, then this generates the corresponding error message "Safety condition violated".
There is a hidden expert parameter, P09.00, which can be used to set a mask to prevent
safety functions from generating the statuses VOUT_SSR and VOUT_SCV.
This can be useful if you wish to use safety functions for monitoring, e.g. "Safe Speed
Monitor, SSM" and these are to be hidden from the operating status messages.
Consult your regional Festo contact person as necessary.
116 Festo – GDCP-CAMC-G-S3-EN – 1406NH – English