Activating A 2-Channel Clamping Unit - Festo CAMC-G-S3 Manual

3 Mounting and installation
– Monitoring of the clamping unit checks only actuation and not whether the friction value of the
clamping unit is high enough for it to still be able to function properly.
– The sample circuit has a single-channel structure in the clamping unit, which is suitable up to cat­
egory 2 with a performance test of the clamping unit.
– Additional measures are required according to the scope of application and the safety concept of
the machine.
3.3.6

Activating a 2-channel clamping unit

The safety function (e. g. STO – Safe Torque Off or SS1 – Safe Stop 1) is triggered by an input device for
the safety request. The safety request is sent along 2 channels via the input device S1 and routes to the
2-channel switch-off of the output stage of the motor controller. At the same time, the clamping units
are activated and monitored.
L
N
PE
24 V DC
0 V DC
K1
1 3
Input
device
2
for
safety
request
2 4
1 2 19 20
1
Only relevant connections drawn
1
T1: Motor controller with safety module
(only relevant connections shown)
2
S1: Input device for safety request
Fig. 3.7 Sample circuit, 2-channel clamping unit
156
S2 S3
13
13
S4
14
14
S5
V1
11 12 21 22 13 14
Festo CMMP-AS-...-3A-M3
with CAMC-G-S3
p
Y1
p
2 2
V2
3 1 1 3
19 19
T1
3
V1/V2/Y1: Valves and two-channel clamping
unit
S4/S5: Pressure switch to monitor activation
of the clamping unit
Festo – GDCP-CAMC-G-S3-EN – 1406NH – English
9 21 1 2 7 8 9
3