Sbc – Safe Brake Control - Festo CAMC-G-S3 Manual

2 Product description of safety module CAMC-G-S3
When the safety function STO is requested, the driver supply is switched off immediately and without any
significant delay on two channels.
After a configurable delay time "Delay time to "STO" signal" (P0A.02), the internal status
VOUT_STO_SSR "Safe state reached" becomes active.
After the request of the safety function STO, the following times elapse until the safety function is activ­
ated:
Time delays from VIN_STO_RSF
VOUT_STO_SFR
VOUT_STO_SSR
Reaction time until switch-off of drive supply
of basic unit and output stage OFF
Tab. 2.29 STO time delays
Parameters for STO
STO: Safe Torque Off
No. Name
P0A.02 Time delay until "STO" signal
P0A.00 Automatic restart permitted
P0A.01 Automatic activation of SBC
Tab. 2.30 STO: Safe Torque Off
2.5.2 SBC – Safe Brake Control
Application
The function described here implements the safety function SBC according to
EN 61800-5-2.
Use the "Safe Brake Control" (SBC) function to activate a clamping unit or holding brake,
in order to mechanically brake the axle in a controlled manner or to hold it securely.
The clamping unit or holding brake can be activated via:
– the safe brake output [X6] in the motor controller,
– a safe output of the safety module and an external brake switching device.
Festo – GDCP-CAMC-G-S3-EN – 1406NH – English
Minimum Maximum
2.0 ms 2.1 ms
2.0 ms + P0A.02 2.1 ms + P0A.02 2.0 ms + P0A.02
2.5 ms 4.5 ms
Description
Delay time until the "Safe state reached" output
becomes active.
If set: Cancellation of the request (restart) if an
inactive request arrives
If set: Safe brake control is activated when the
safe state is reached (after the delay time has
expired).
Typical
2.0 ms
3.5 ms
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