SICK deTec4 C4P-EA 3SC05 Series - Page 78

LEDs Possible cause Troubleshooting
OSSD Field Diagnostics LEDs
1 2 3 4 5 6 7 8
O R
ed Ö
Red
o o o Ö
Red
o o o o
A wiring fault has
been ident
ified at the
OSSDs or at an input.
E.g., at an OSSD:
overvoltage, short-cir‐
cuit, cross-circuit,
permissible load
capacity exceeded.
E.g., at an input: inva‐
lid signal, unexpected
signal.
►
Chec
k the system wiring
for a fault. Make sure
that the OSSDs and
inputs have been wired
correctly, see "Integra‐
tion in electrical con‐
trol", page 30.
►
Switch thevoltage sup‐
ply off and back on
again.
►
If the fault continues
to persist, replace the
defective components,
see "Ordering informa‐
tion", page 87.
O R
ed Ö
R
ed
o Ö
Red
Ö
Red
o o o o o
A wiring fault has
been de
tected.
►
Chec
k the system wiring
for a fault.
►
Make sure that the IO-
link interface was wired
correctly.
►
Switch thevoltage sup‐
ply off and back on
again.
O R
ed Ö
Red
Ö
Red
o Ö
Red
o o o o o
Incompatible device
de
tected.
►
F
or a sender-receiver
connection, ensure that
the sender and receiver
devices are compatible,
see "Connection of
sender and receiver",
page 34.
O R
ed Ö
Yel‐
low
EDM warning (only if
t
he external device
monitoring function is
active):
The OSSDs have con‐
stantly been in the
OFF state since the
safety light curtain
was switched on and
no signal is present
at the EDM input.
Normally, this message is
displayed only briefly after
switching on and goes out
as soon as the voltage
supply for the auxiliary con‐
tacts is established at the
contactors. If the message
is displayed for longer:
►
Check the contactors.
►
Check the wiring of the
contactors.
►
Switch thevoltage sup‐
ply off and back on
again.
11 TROUBLESHOOTING
78
O P E R A T I N G I N S T R U C T I O N S | deTec4 C4P-EAxxx3SC05 8028570/2023-07-27 | SICK
Subject to change without notice