2
Product description for safety module CAMC-G-S1
14
Festo – GDCP-CAMC-G-S1-EN – 1412b – English
2.2
Function and application
The safety module CAMC-G-S1 has the following performance characteristics:
–
“Safe Torque Off ” (STO) function
–
Potential-free acknowledgement contact for the operating status,
–
Designed as a plug-in module that can be plugged in from the outside thus enabling retrofits,
–
Suitable solely for series CMMP-AS-…-M3 motor controllers.
The “Safe Stop 1” (SS1) function can be realised by employing a suitable external safety switching
device and appropriate motor controller CMMPAS...M3 circuitry.
2.2.1
Description of the safety function STO
Use the function “Safe Torque Off ” (STO) whenever you have to reliably disconnect the energy supply
to the motor in your particular application.
The function “Safely Torque Off ” switches off the driver supply for the power semiconductor, thus pre
venting the power end stage supplying the voltage required by the motor
è
4
3
5
6
2
1
>=1
DC
DC
STO-A
OV-A
GN
C1
C2
YE
DC
DC
STO-B
0V-B
3x
U, V, W
+VDC
+VDC
+24 VDC
0 V
7
4
1
Safety circuit (switch, relay, safety
switching device)
2
Safety module CAMC-G-S1
3
Power end stage in the CMMP-AS-...-M3
(only one phase illustrated)
4
Driver supply
5
Motor connection
6
LED (green / yellow), status display
7
Feedback contact
Fig. 2.2
“Safe Torque Off ” – Operating principle for the CMMP-AS-…-M3