Leuze electronic MLC 500 - MLC 520 Receiver

Electrical connection
Leuze electronic MLC 520 Host/Guest 38
7.1.2 MLC520 receiver
MLC 520 receivers are equipped with a 8-pin M12 connector.
3
4
1
7
8
FE
2
6
5
EDM
OSSD1
OSSD2
Start
MLCx20R
Restart
0V FE
+24V
8
643 5
7
21
-A2
RES active
Fig.7.3: Pin assignment and connection diagram receiver
Tab.7.2: Pin assignment receiver
Pin Core color (CB-M12-xx000E-5GF) Receiver
1 White IO1 - control input reset button, signal output
Start/restart NO to 24VDC
Output reset button lamp (inverted OSSD)
2 Brown VIN1 - supply voltage
24VDC for transmission channel C1
0V for transmission channel C2
3 Green IN3 - control-input contactor monitoring (EDM)
24VDC: without EDM
0V: with EDM and feedback circuit closed
High-impedance: with EDM and feedback circuit
open
4 Yellow IN4 - control input for start/restart interlock (RES)
24VDC: with RES
Bridge to pin1: without RES (note: signal output re-
mains functional)
5 Gray OSSD1 - safety-related switching output
6 Pink OSSD2 - safety-related switching output
7 Blue VIN2 - supply voltage
0V: for transmission channel C1
24VDC for transmission channel C2
8 Red FE - functional earth, shield
Wired in device interior on the housing
FE FE - functional earth, shield
The polarity of the supply voltage selects the transmission channel of the receiver:
• VIN1=+24V, VIN2=0V: transmission channelC1
• VIN1=0V, VIN2=+24V: transmission channelC2