Festo CAMC-G-S3 Manual page 92

2 Product description of safety module CAMC-G-S3
The logic to request the SOS safety function is shown in the following block diagram:
Safety Function SOS
SS2_SOS_RSF
VIN_SOS_RSF
VIN_SOS_CSF
P0B.03
ACTUAL_POSITION
P0B.0x
Fig. 2.22 Block diagram SOS
Term/abbreviation
Safety Function SOS
VIN_SOS_RSF
VIN_SOS_CSF
ACTUAL POSITION
TIMER + POSITION
COMPARATOR
VOUT_SOS_SFR
VOUT_SOS_SSR
[54-3] SOS_ERR
Tab. 2.48 Legend for Fig. 2.22
The safety function SOS is requested as follows:
– by the user via any combination of input signals LIN_D... on the signal VIN_SOS_RSF.
– via the safety function SS2, Signal SS2_SOS_RSF.
The request of the safety function SOS is cancelled as follows:
– by the user via a combination of different inputs, run on the signal VIN_SOS_CSF.
– by setting the parameter "Automatic restart allowed" (P0B.03), an automatic restart is performed
when the request is removed.
Each request of the safety function has priority over termination of the request.
This means: As long as one of the xxx_RSF signals is pending, the safety function cannot be terminated
by an xxx_CSF signal.
92
1
S Q
TIMER
+
POSITION
R
COMPARATOR
1
Explanation
Safety function SOS
Virtual input: Request SOS
Virtual input: Terminate SOS request
Internal signal: Current position
Timer and position comparator
Virtual output: SOS requested
Virtual output: Safe state SOS reached
Internal error signal: Error 54-3
VOUT_SOS_SFR
VOUT_SOS_SSR
[54-3] SOS_ERR
Festo – GDCP-CAMC-G-S3-EN – 1406NH – English