
Electrical connection
Leuze electronic
MSI-TRMB
29
Figure 7.6: Safety monitoring device with two protective sensors with automatic start
0V
Var. B
Var. A
+2
4
V
MSI-TRMB
Receiver
0V
+
24V
-K1
-K2
S22
-A3
A2
S21 S12 S11
S33
S34
S31 14
24
A1
13
23
-K2
-K1
-K1
-K2
A1
A2
-K1
A1
A2
-K2
1
2
1
2
4
4
3
-A2
1
0V
+ 24V
PE
L-
L+
+ 24V
0V
PE
L+
L-
3
1
Transmitter
-A1
active
+
24V
0V
Receiver
0V
+
24V
4
4
3
-A5
1
3
1
Transmitter
-A4
active
+
24V
0V
State
E
rro
r