3
SYSTEM DESCRIPTION
8020065-ZSP4/2017-08-10|SICK
O P E R A T I N G I N S T R U C T I O N S | Master Data Analyzer
Subject to change without notice
32
3.5
Status indicators
The Master Data Analyzer’s accessible status indicators can be found on the following
devices:
3.5.1
Status indicators – Light grids
The receivers on the light grids have three LEDs on the connection side. These provide a
visual indication of the operational status and any occurring faults.
Fig. 20: Status indicators – Light grids
LEDs on the MLG-2 sender
No.
LED indicator
Description
1
Green
Green LED permanently on
Supply voltage on
1
Red
Red LED permanently on
Hardware fault
Tab. 6: Status indicators – Light grids (senders)
LEDs on the MLG-2 receiver
No.
LED indicator
Description
1
Green
Green LED permanently on
Supply voltage on
Green
Green LED off
Supply voltage off or too low
2
Yellow
Yellow LED permanently on
Light path interrupted (at least one beam is interrupted)
Yellow
Yellow LED off
Light path is unobstructed
Yellow 3 Hz
Yellow LED flashing rapidly
Contamination warning or alignment mode is active (the signal from
the receiver is too weak)
The alignment mode is not permanently deactivated until after teach-in
Yellow 1 Hz
Yellow LED flashing slowly
Teach-in active
Red
Red LED permanently on
A fault has occurred. The type of fault will be indicated by a
combination of the yellow and the green LEDs.
Red 10 Hz
Red LED flashing rapidly
An error has occurred during teach-in.
Tab. 7: Status indicators – Light grids (receivers)
