LEDs
Possible cause
Troubleshooting
STATE
Field
O
Red
Ö
Green
The device is in configuration mode
following a change to the configura‐
tion.
For additional information:
.
Ö
Green
Ö
Red
A problem occurred when resetting
the configuration to factory settings.
b
Restart configuration,
.
O
Red
Ö
Yellow
Incompatible device detected.
1.
For a sender-receiver connec‐
tion, ensure that the sender
and receiver devices are com‐
patible,
.
2.
Ensure that the connected
sender devices as well as the
connected receiver devices in
a cascade are compatible,
O
Red
Ö
Red
Communication fault between the
senders in a cascade.
b
Check the cascade wiring.
b
Switch the voltage supply off and
back on again.
Ö
Red
Ö
Red
Different beam codings in a cas‐
cade or impermissible cascade
structure.
b
Check the configuration of the
devices, particularly the beam
coding.
b
If the sender and receiver are
connected to each other, also
check the configuration of the
receiver.
b
Switch the voltage supply off and
back on again.
o
Ö
Red
The voltage is or was too high when
operating the sender.
b
Check the voltage supply,
b
Replace the sender,
o
LED off.
Ö
LED flashes.
O
LED illuminates.
1)
If the sender and receiver are connected by a cable, the LEDs on the sender indicate the same status as the LEDs on the receiver during
normal operation. The STATE LED on the sender adopts the status of the OSSD LED on the receiver.
Receiver
Position of the LEDs:
see "Receiver displays", page 22
Table 47: Fault indication on the receiver
LEDs
End cap with
integrated
LED
Possible cause
Troubleshooting
OSSD Fiel
d
Diagnostics LEDs
1
2
3
4
5
6
7
8
O
Red
Ö
Red
Ö
Red
o
o
o
o
o
o
o
Ö
Red
An internal fault
has occurred.
b
Switch the voltage
supply off and back
on again.
b
If the fault con‐
tinues to persist,
replace the receiver,
see "Ordering infor‐
mation", page 150
.
TROUBLESHOOTING
11
8021645/1EB0/2022-04-28 | SICK
O P E R A T I N G I N S T R U C T I O N S | deTec4
133
Subject to change without notice
