Internal Brake Control Of The Motor Controller [X6] - Festo CAMC-G-S3 Manual

2 Product description of safety module CAMC-G-S3
Parameters for the two-channel digital outputs
Parameter no. for output ...
DIN40 DIN41 DIN42
P02.30 P02.32 P02.34
P02.31 P02.33 P02.35
Tab. 2.78 Parameters of two-channel digital outputs
2.9.2

Internal brake control of the motor controller [X6]

Use
The motor controller has integrated circuit breakers for safe brake control. Both the +24 V
connection and the 0 V connection of the holding brake are switched using separate
power transistors.
The holding brake is normally activated functionally via the motor controller. However, the
circuit breakers can also be used in combination with the CAMC-G-S3, in order to control a
clamping unit or holding brake via the SBC safety function.
The integrated brake control at output [X6] meets the requirements PL d / Cat. 3 accord­
ing to EN ISO 13849, or SIL 2 according to EN 61800-5-2.
Function
The safety module actively controls the high and low-side switches in the motor controller. Control of
the safety module is implemented through both microcontrollers via the signals BR+_BASEUNIT and
BR-_BASEUNIT. The Low status of the appropriate signal switches off the corresponding power tran­
sistor and the holding brake takes effect.
When the device is delivered, the internal brake activation is already configured in such a
way that a request by the SBC safety function causes a switch-off of the signals
BR+_BASEUNIT and BR-_BASEUNIT.
Observe the polarity of the control signal from the SBC function:
VOUT_SBC_BRK_ON = 1 means that the clamping unit or holding brake should take effect.
For this reason, the control signal must be inverted:
LOUT_BRAKE_CTRL = NOT(VOUT_SBC_BRK_ON)
124
Name
Operating mode
Test impulse length
Description
Mode: Off (0 V) / equivalent /
antivalent / ON (24 V)
Length of the test impulse
Festo – GDCP-CAMC-G-S3-EN – 1406NH – English