Festo CAMC-G-S3 Manual page 80

2 Product description of safety module CAMC-G-S3
Process
The sequence of the SS1 safety function is shown in the following diagram:
Safety Function Request
SFR
P0C.00
n
P0C.0C
n
P0C.0A
Max
n
Actual
P0C.07
P0C.05
P0C.0A
n
min.
Fig. 2.19 SS1 flow diagram
Term/abbreviation
Safety Function Request SFR
Monitoring
SFR (SBC)
Safe State Reached SSR
Initial setting for speed ramp
n
act
Tab. 2.38 Legend for Fig. 2.19
The flow diagram and the following description apply for a positive speed n
plies in a corresponding manner for a negative speed, in which case n
by a negative speed.
After the request from SS1, the safety module starts a slowdown ramp to monitor the braking operation:
– a time delay is defined using "Time delay until monitoring starts" (P0C.00). Only after this time is
compliance with the current speed limit values monitored.
– The length of the slowdown ramp is specified using "Time for slowdown ramp" (P0C.01).
– If "Automatic activation SBC" (P0C.09) was activated, then the safety function SBC is triggered after
the "Time for slowdown ramp" (P0C.01) has elapsed, otherwise STO is triggered.
80
Monitoring
P0C.02
P0C.06
P0C.01
Explanation
Safety function request
Monitoring
SBC request
Safe state reached
initial values for the speed ramp
Actual speed
Initial setting for speed ramp (n  0):
n = n + ( | n | * P0C.03) + P0C.04)
max act act
n = –P06.09
min
Initial setting for speed ramp (n  0):
n = P06.09
max
n = n – ( | n | * P0C.03) – P0C.04)
min act act
SFR (SBC)
(P0C.09)
Safe State Reached
SSR
P0C.0B
SS1 è STO
P0C.0C
Festo – GDCP-CAMC-G-S3-EN – 1406NH – English
t
. This ap­
act
is delayed to zero
act