SICK WTT190LC-B2233A00, Operating Instructions Manual

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LED indicator/fault pattern /
LED indicator/fault pattern Cause /
Cause Measures /
Measures
If the power supply is OK,
replace the sensor
Green LED lights up, no output
signal when object is
detected /
Green LED lights up, no output
signal when object is detected Test input (Test) is not con‐
nected properly /
Test input (Test) is not con‐
nected properly See the note on connecting
the TI /
See the note on connecting
the TI
Green LED flashes /
Green LED flashes IO-Link communication /
IO-Link communication -
Switching outputs not accord‐
ing to graphic F /
Switching outputs not accord‐
ing to graphic F IO-Link communication /
IO-Link communication -
Switching outputs not accord‐
ing to graphic F /
Switching outputs not accord‐
ing to graphic F Parameter settings made
manually, which deviate from
the standard /
Parameter settings made
manually, which deviate from
the standard Initiate a factory reset. The
switching outputs are reset to
factory settings. /
Initiate a factory reset. The
switching outputs are reset to
factory settings.
Yellow LEDs flash at the same
time /
Yellow LEDs flash at the same
time The sensor is not ready for
operation. The sensor will be
in the warming-up phase at
low ambient temperatures.
The sensor will have shut
down at excessively high
ambient temperatures. /
The sensor is not ready for
operation. The sensor will be
in the warming-up phase at
low ambient temperatures.
The sensor will have shut
down at excessively high
ambient temperatures. At low ambient temperatures,
wait until the sensor has
warmed up. Ensure the sensor
cools down at excessively high
ambient temperatures. /
At low ambient temperatures,
wait until the sensor has
warmed up. Ensure the sensor
cools down at excessively high
ambient temperatures.
Yellow LED flashes (only
briefly) /
Yellow LED flashes (only briefly) Teach-in mode /
Teach-in mode Check the teach-in mode /
Check the teach-in mode
Yellow LED lights up, no object
in the path of the beam /
Yellow LED lights up, no object
in the path of the beam Distance between the sensor
and the background is too
short /
Distance between the sensor
and the background is too
short Reduce the sensing range,
see graphic F /
Reduce the sensing range,
see graphic F
Object is in the path of the
beam, yellow LED does not
light up /
Object is in the path of the
beam, yellow LED does not
light up Distance between the sensor
and the object is too long or
sensing range is set too
short /
Distance between the sensor
and the object is too long or
sensing range is set too short Increase the sensing range,
see graphic F /
Increase the sensing range,
see graphic F
5
TROUBLESHOOTING
12
8024108 | SICK
Subject to change without notice