schmersal SRB-E-212ST - Application Example

8
Operating instructions
Safety-monitoring module
SRB-E-212ST / SRB-E-322ST
EN
Wiring example SRB-E-212ST
0V / GND
R
H2
X7X3A1 S22S11
A2
S21 X2
Qt1Y2Y1
S12
+24VDC
K
A
K
B
K
C
K
D
F1
K1 K2
2313
2414
K2
K1
K
D
K
C
K
C
K
D
K
A
K
B
N
L1
K
A
K
B
a)
b)
c)
d)
e)f)
Wiring example SRB-E-322ST
0V / GND
R
H2
X7X3A1 S22S11
A2
S21 X2
Qt1Qt2Y2
S12
+24VDC
K
A
K
B
F1
K
D
K
C
K
C
K
D
K
A
K
B
K2
K1
2313 33 41
2414 34 42
K1 K2
L1
K
A
K
B
N
K
C
K
D
a)
b)
c)
d)
e)f)
Key
a) Safety inputs
b) Safety outputs
c) Signalling outputs
d) Clock outputs
e) Processing
f) Power
7.2 Application example
Dual-channel control, shown for a guard door monitor with two
position switches where one has a positive break contact; with
external reset button
J
- Relay outputs: Suitable for 2-channel control, for increase in capacity
or number of contacts by means of contactors or relays with positive-
guided contacts Kontakten
- H2 = Feedback circuit
Signalling outputs must not be used in safety circuits.