Device description
Leuze electronic
MLC 520S
12
3.4
Display elements
The display elements of the safety sensors simplify start-up and fault analysis.
3.4.1
Operation indicators on the MLC 520S transmitter/receiver
Located on both the transmitter and receiver are six LEDs for displaying the operating state:
1
2
7
8
9
10
6
1
2
3
4
5
6
1
LED1
2
LED2
3
LED EDM/3
4
LED RES
5
OSSD LED
6
PWR LED
7
LED3
8
LED TX
9
Transmitter
10
Receiver
Fig. 3.1:
Indicators on the MLC 520S transmitter/receiver
Tab. 3.2:
Meaning of the LEDs on the transmitter
Operating
mode
LED indicator
Description
NORMAL
OPERATION
Normal operation
LOCKOUT
ERROR
Internal error
Optical scan error
Cascade communication er-
ror
Reset error
