SICK deTec4 Ex II 3GD - Page 121

LEDs Possible cause Rectification
STATE Field
Ö R
ed Ö Red
Different beam codings in a cas‐
c
ade or impermissible cascade
structure.
b
Chec
k 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
then on again.
o Ö R
ed
The voltage is or was too high when
oper
ating the sender.
b
Chec
k the voltage supply, see
"Technical data", page 127.
b
Replace the sender, see "Order‐
ing information", page 137.
o LED of
f. 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
P
osition of LEDs: see "Receiver indicators", page 22.
Table 41: Fault indication on the receiver
LEDs Possible cause Troubleshooting
OSSD Field Diagnostics LEDs
1 2 3 4 5 6 7 8
O R
ed Ö
Red
Ö
Red
o o o o o o o
An internal fault has
oc
curred.
b
S
witch the voltage sup‐
ply off and back on
again.
b
If the fault continues
to persist, replace the
receiver, see "Ordering
information", page 137.
O Red Ö
Red
o Ö
Red
o o o o o o
Failure in the voltage
suppl
y.
b
Chec
k the voltage sup‐
ply and the voltage sup‐
ply unit, see "Technical
data", page 127.
b
Switch the voltage sup‐
ply off and back on
again.
b
If the fault continues
to persist, replace the
receiver, see "Ordering
information", page 137.
O Red Ö
Red
o Ö
Red
o Ö
Red
o o o o
Permanent error in
t
he voltage supply.
b
R
eplace device, see
"Ordering information",
page 137.
O R
ed Ö
Red
o Ö
Red
Ö
Red
Ö
Red
o o o o
General error in the
conf
iguration.
b
Chec
k configuration set‐
tings including the per‐
mitted combination of
functions.
b
Make sure that the
correct system plug is
used.
b
Reset device to factory
settings.
TROUBLESHOOTING 11
8023872/18YZ/2021-01-14 | SICK O P E R A T I N G I N S T R U C T I O N S | deTec4 Ex II 3GD
121
Subject to change without notice