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Device description
Leuze electronic
MLD 300, MLD 500
14
Table 3.3:
Meaning of the LED
3.3.2 Operation indicators on the receiver
The receiver has a LED (LED1, red or green). The following device models have additional display
elements at the receiver:
• MLD 320, MLD 520: LED2 (yellow)
• MLD 330, MLS 335, MLD 530, MLD 535: LED2 (yellow), 7-segment display, muting indicator
(optional)
Table 3.4:
Meaning of LED1
LED
Description
Green
Transmitted beam active
Off
Fault (transmitted beam inactive)
1
LED1
2
Symbol for OSSD
3
Interface symbol (MLD 330, MLD 335, MLD 530, MLD 535)
4
LED2
5
Symbol RES
6
Beam marking
Figure 3.4: Operation indicators on the receiver
4
1
6
5
2
3
Receiver
LED1
Meaning
Red
OSSD off
Green
OSSD on
Red slowly flashing (approx. 1 Hz)
External fault
Red flashing fast (approx. 10 Hz)
Internal fault
Green slowly flashing (approx. 1 Hz)
OSSD on, weak signal
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