Activation Of A 2-Channel Valve Control Block With Safety Functions - Festo CAMC-G-S3 Manual

3 Mounting and installation
L
N
PE
24 V DC
0 V DC
K1
13
Input
device
for
2
safety
request
24
1 2
1
Only relevant connections drawn
1
T1: Motor controller with safety module
(only relevant connections shown)
2
S1: Input device for safety request
Fig. 3.8 Sample circuit of an encoder for dynamic safety functions
Notes with regard to the sample circuit:
– The encoders must be suitable for safety-orientated applications.
– Encoders with purely incremental signals can be used to safely monitor speed (SLS, SSR, SS1, etc.).
Such encoders can also be used for idle-position monitoring with SS2 and SOS.
– In the input circuit for the input devices for the safety request S1, the safety module CAMC-G-S3
detects cross-circuits for the acknowledgement pushbutton S2, for the Start button S3 and for the
mode selection switch S6.
– Actuating the Start button S3 commences the restart.
– The acknowledgement contact C1, C2 should be polled via the controller. If a safety request has
been made, the controller enable should be cancelled.
3.3.8

Activation of a 2-channel valve control block with safety functions

The safety function (e. g. for the motor controller STO – Safe Torque Off or SS1 – Safe Stop 1; for the
valve control block Safe Venting or Safe Reversing) is triggered by an input device which makes a safety
request for the motor controller and the control block with safety function. 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 and the control block.
158
S2 S3 S6
13 13 11
Auto Man.
14 12 14
14
19 20 11 12 8 9 21
T1
Festo CMMP-AS-...-3A-M3
with CAMC-G-S3
22 9 21 1 2 7 8 9
3
n1: Encoder in servo motor to X2B
4
n2: Encoder to X10
Festo – GDCP-CAMC-G-S3-EN – 1406NH – English
3
n1 M1
N2
4