Festo CAMC-G-S3 Manual page 81

2 Product description of safety module CAMC-G-S3
– Only on triggering of SBC (P0C.09 = 1):
The mechanical delay time of the clamping unit or holding brake can be taken into account using
"Delay after expiry of P0C.01 until STO is triggered" (P0C.0B). After the time P0C.01 + P0C.0B ex­
pires, STO is triggered and the message VOUT_SS1_SSR is set.
The time P0C.0b must always elapse, even if P0C.01 = 0.
– The starting value of the monitoring slowdown ramp, n
in the diagram and can be parameterised via "Slowdown ramp - Starting value factor" (P0C.03) and
"Slowdown ramp - Starting value offset" (P0C.04). The ramp ends at speed = 0 (tolerance is spe­
cified by the limit value "Speed threshold value for standstill detection" (P06.09)).
– A time delay for the start of the slowdown ramp can be parameterised using "Slowdown ramp -
time delay to start" (P0C.05).
If the braking operation at SS1 is not to be controlled by the safety module but by the
functional controller, then P0C.05 can be used to parameterise a delay to the ramp, in
order to compensate for the reaction time of the controller.
Active limiting of the speed in the basic unit is switched on using the parameter "Actively limit speed in
the basic unit" (P0C.06):
– Current speed values are transmitted at regular intervals to the basic unit. The speed limits must
have a safety distance to the monitoring limits, which is set using the parameter "Speed offset for
limiting in the basic unit" (P0C.0A).
– At the end of the monitoring slowdown ramp, the speed limit = 0.
– The basic unit actively limits the speed setpoint and, depending on the parameterisation, also the
travel speed of running positioning operations.
The quick stop is activated in the basic unit using the "Activate quick stop ramp in the basic unit" para­
meter (P0C.07):
– When SS1 is requested, the quick stop ramp in the basic unit is activated automatically and the
drive brakes to zero using the quick stop ramp.
Please note
To avoid a violation of the safety condition when braking via the quick stop ramp of the
basic unit, please ensure that the ramp time parameterised via "Time for slowdown
ramp" (P0C.01) is greater than the braking time of the basic unit from maximum speed
at the quick stop ramp.
The SafetyTool will indicate a possible conflict during parameterisation.
After termination of the request of the SS1 function, the internal control signals for the quick stop and
the speed limiting in the basic unit are reset.
Festo – GDCP-CAMC-G-S3-EN – 1406NH – English
, is calculated according to the equation
max
81