SICK deTec4 Core Ex II 3GD - Page 55

LED Possible cause Troubleshooting
PWR ERR
Ö Y
ellow Ö Red
The sender identified an internal
f
ault.
b
S
witch thevoltage supply off and
back on again.
b
If the fault persists, replace the
sender, see "Ordering informa‐
tion", page 62.
o LED of
f. Ö LED flashes. O LED illuminates.
Receiver
P
osition of the LEDs: see "Receiver displays", page 13.
Table 9: Fault indication on the receiver
LEDs Possible cause Troubleshooting
OSSD ERR Alignment quality
1 2 3 4
O R
ed Ö Red Ö
Blue
o o o
An internal fault has occurred.
b
Switch thevoltage supply
off and back on again.
b
If the fault continues to per‐
sist, replace the receiver,
see "Ordering information",
page 62.
O Red Ö Red o Ö
Blue
o o
Fault in the supply voltage
b
Check the voltage supply
and the power supply
unit, see "Technical data",
page 57.
b
Switch thevoltage supply
off and back on again.
b
If the fault continues to per‐
sist, replace the receiver,
see "Ordering information",
page 62.
O Red Ö Red o o Ö
Blue
o
The receiver has recognized
be
ams from several senders.
b
Chec
k the distance to send‐
ers of the same design.
Make sure that beams from
another sender cannot hit
the receiver, see "Protection
against interference from
systems in close proximity
to each other", page 21.
b
Switch thevoltage supply
off and back on again.
O Red Ö Red o o o Ö
Blue
A fault or unexpected status
w
as identified on the OSSDs
of the system connection
(e.g.,overvoltage, short-circuit
to HIGH or short-circuit to LOW,
cross-circuit, permissible load
capacity exceeded)
b
Chec
k the system wiring
for a fault. Make sure that
the OSSDs have been wired
correctly, see "Integration in
electrical control", page 22.
b
Switch thevoltage supply
off and back on again.
b
If the fault continues to per‐
sist, replace the defective
components, see "Ordering
information", page 62.
O Red Ö Red o Ö
Blue
o Ö
Blue
Permanent error in the voltage
suppl
y.
b
R
eplace device, see "Order‐
ing information", page 62.
o LED of
f. Ö LED flashes. O LED illuminates.
TROUBLESHOOTING 10
8021796/1DCM/2022-10-27 | SICK O P E R A T I N G I N S T R U C T I O N S | deTec4 Core Ex II 3GD
55
Subject to change without notice