Electrical connection
Leuze electronic
MSI-TRMB
26
Figure 7.2: Safety monitoring device with one protective sensor with automatic start and non-monitored
start
Figure 7.3: Safety monitoring device with series connection consisting of multiple protective sensors
with monitored start (restart interlock)
Note the total delay time of the photoelectric sensors (0.5 ms to 8.5 ms)
0V
Var. B
Var. A
+2
4
V
State
Er
ro
r
MSI-TRMB
active
Receiver
0V
+
2
4V
1 AOPD
-K1
-K2
S11
-A3
A2
S22
S12
S33
S34
S31 14
24
S21
13
23
-K2
-K1
-K1
-K2
A1
A2
-K1
A1
A2
-K2
1
2
1
2
4
4
3
-A2
1
A1
0V
+ 24V
PE
L-
L+
+ 24V
0V
PE
L+
L-
3
1
Transmitter
-A1
+2
4
V
0V
+24V
Receiver
0V
Transmitter
MSI-TRMB
+24V
0V
active
State
Error
0V
+24V
Transmitter
0V
+24V
Receiver
0V
+24V
0V
Transmitter
+24V
0V
Receiver
active
active
Var. A
Var. B
S22
3
-A7
A2
-A1
S11
A1
S12
S36
S35
S31 14
24
13
23
-K1
-K2
A1
A2
-K1
A1
A2
-K2
1
-A3
4
1
S21
4
3
-A5
1
4
3
-A2
1
4
3
1
4
3
-A4
1
4
3
-A6
-K2
-K1
-K2
-K1
0V
+24V
0V
PE
+24V
PE
L-
L+
L+
L-
Start