5
SRB 201ZH
Operating instructions
Safety-monitoring module
EN
8.3 Actuator configuration
Single-channel control with feedback circuit (Fig. 5)
• Suitable for increase in capacity or number of contacts by means of
contactors or relays with positive-guided contacts
•
S
= feedback circuit:
If the feedback circuit is not required, establish a bridge
Dual-channel control with feedback circuit (Fig. 6)
• Suitable for increase in capacity or number of contacts by means of
contactors or relays with positive-guided contacts
•
S
= feedback circuit:
If the feedback circuit is not required, establish a bridge
X1
X2
23
13
24
14
K
C
K
A
S
L1
N
K
A
K
C
X1
X2
23
13
24
14
K
B
K
C
K
D
K
A
K
B
L1
N
K
A
K
D
S
K
C
Fig. 5
Fig. 6
Differential control with feedback circuit (see Fig. 7)
• Suitable for increase in capacity or number of contacts by means of
contactors or relays with positive-guided contacts
•
S
= feedback circuit:
If the feedback circuit is not required, establish a bridge
X1
X2
23
13
24
14
K
A
L1
N
K
A
S
a)
Fig 7 a) Enabling signal controller
8.4 Flow diagram
1
1
1
1
0
0
0
0
1
0
1
0
1
0
1
0
a)
b)
d)
c)
B)
A)
C)
D)
E)
F)
t
S
4)
3)
1)
2)
Fig. 8
Legend
1) uninterrupted workcycle;
2) Fault in feedback circuit;
3) Synchronous actuation fault t > 05 s
4) Fault button A, B before U
B
in ;
A) Operating voltage UB;
B) Two-hand button A: the representation is related to the potentials
at the terminals of the safety-monitoring module;
a) NC contact S11; b) NO contact S12;
C) Two-hand button B: the representation is related to the potentials
at the terminals of the safety-monitoring module;
c) NC contact S21; d) NO contact S22;
D) Simultaneity monitoring ts (synchronous actuation);
E) Feedback circuit X1-X2;
F) Output contacts 13-14, 23-24 potential-free
