Festo CAMC-G-S3 Manual page 85

2 Product description of safety module CAMC-G-S3
The logic to request the SS2 safety function is shown in the following block diagram:
Safety Function SS2
ERR_SS2_RSF
VIN_SS2_RSF
VIN_SS2_CSF
P0D.08
ACTUAL_SPEED
P0D.0x
Fig. 2.20 Block diagram SS2
Term/abbreviation
Safety Function SS2
ERR_SS2_RSF
VIN_SS2_RSF
VIN_SS2_CSF
ACTUAL SPEED
TIMER + SPEED
RAMP GENERATOR
VOUT_SS2_SFR
VOUT_SS2_SSR
[54-2] SS2_ERR
SPEED_LIMIT
SS2_SOS_RSF
Tab. 2.42 Legend for Fig. 2.20
The safety function SS2 is requested as follows:
– by the user via any combination of input signals LIN_D... on the signal VIN_SS2_RSF.
– as an error reaction, controlled via the error management system, signal ERR_SS2_RSF.
The request of the safety function SS2 is cancelled as follows:
– by the user via a combination of different inputs, run on the signal VIN_SS2_CSF.
– by setting the parameter "Automatic restart allowed" (P0D.08), an automatic restart is performed
when the request is cancelled.
Festo – GDCP-CAMC-G-S3-EN – 1406NH – English
TIMER
1
+
SPEED RAMP
S Q
GENERATOR
R
1
Explanation
Safety function SS2
Internal signal: Request SS2 through error response
Virtual input: Request SS2
Virtual input: End SS2 request
Internal signal: Current speed
Timer and calculation of speed ramps
Virtual output: SS2 requested
Virtual output: Safe state SS2 reached
Internal error signal: Error 54-2
Internal signal: Speed limit in basic unit
Internal signal: Request SOS by SS2
VOUT_SS2_SFR
VOUT_SS2_SSR
[54-2] SS2_ERR
SPEED_LIMIT
SS2_SOS_RSF
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