IDEC SG4 Type 4 Finger & Hand - Manual (Page 45)

Instruction Manual SG4-B Series
41
7.2. Dagnostic messages
The operator can evaluate the main causes of the system stop or
failure through the display and signalling LEDs.
For Receiver:
Function Status Meaning LED DIGIT
Alignment See section 5
TEST
(red ON)
Light curtain being
tested. OSSD status
shall be OFF
Emission
(OSSD ON)
(green ON) Light curtain working in
normal operating
conditions
Interruption
(OSSD OFF)
(red ON)
Light curtain working in
safety block conditions.
Interlock
Beams free
(red ON
yellow ON)
Light curtain in
interlock, waiting for
restart. OSSD status
must be OFF
Interlock
Beams
interrupted
(red ON
yellow ON)
Light curtain in
interlock. OSSD status
must be OFF
Signal level
Minimum (1 bar)
Medium (2 bar)
Maximum (3 bar)
Normal
operation
EDM enabled
EDM function is
selected