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Electrical connection
Leuze electronic
MLD 300, MLD 500
51
Figure 7.8: Connection example MLD 320, MLD 520 (transmitter-receiver system) without EDM, with
RES (transceiver connected in an analogous manner)
Figure 7.9: Connection example MLD 510 (transceiver system) with EDM; RES in MSI-SR4 safety relay
0V
0V
MLD300-T, MLD500-T
n.c.
-W1
-W2
6
4
3
-W1
5
-W2
7
2
1
-A2
4
3
2
1
A1
PE
+24V
0V
24V
PE
0V
MODE
n.c.
5
n.c.
MLD320-R, MLD520-R
+24V
+24V
EDM
RES
OSSD2
OSSD1
Safety-PLC
or
Safety Relay
FE
FE
WH
PK
GN
BN
YE
GY
BN
BU
SH
BU
SH
Var. B
Var. A
-K3
-K4
-K4
-K3
0V
PE
+24V
PE.
+24V
0V.
14
24
42
13
23
41
A1
A2
-K3
1
2
1
2
L+
L+
L-
L-
-S1
-K3
-K4
+24V
0V
MSI-SR4
A1
-A3
A2
S22
S12
S31
S33
S34
S35
2 AOPD-
1 AOPD+
33
34
A1
A2
-K4
2 AOPD+
IV-0
RES-0
RES-I
1
2
*
*
3
2
4
+24V
-A2
SH
-W2
4
-W2
-A1
2
1
3
OSSD2
0V
1
OSSD1
FE
MLD510-RT
MLD-M002
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