SICK WTB4S - Maintenance

LED/fault pattern Cause Measures
Digital outputs not according to
graphic
Parameter settings made
manually, which deviate from
the standard
Initiate a factory reset. The
digital outputs are reset to
factory settings.
Yellow LED flashes Sensor is still ready for oper‐
ation, but the operating condi‐
tions are not ideal
Check the operating condi‐
tions: Fully align the beam
of light (light spot) with the
object. / Clean the optical sur‐
faces . / Check sensing range
and adjust if necessary.
Yellow LED flashes (only briefly) Teach-in mode Check the teach-in mode
Yellow LED lights up, no object
in the path of the beam
The sensing range distance is
too large
Reduce the sensing range
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
Increase the sensing range
7.1 Troubleshooting integrated IO-Link devices
Notes on malfunctions can be found in the service data.
Details of the available service data can be found in the detailed IO-Link description:
Technical Information: Photoelectric sensors, SICK Smart Sensors / IO-Link.
8 Maintenance
This SICK sensor is maintenance-free.
We do, however, recommend that the following activities are undertaken regularly:
•
Clean the optical interfaces and housing
•
Check the fittings and plug connectors
Cleaning
NOTICE
Equipment damage due to improper cleaning.
Improper cleaning may result in equipment damage.
■
Only use recommended cleaning agents and tools.
■
Never use sharp objects for cleaning.
►
Clean the optical surfaces at regular intervals and, in the event of contamination,
with a lint-free lens cloth (part number 4003353). The cleaning interval essentially
depends on the ambient conditions.
No modifications may be made to devices.
Subject to change without notice. Specified product properties and technical data are
not written guarantees.
OPERATING INSTRUCTIONS
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O P E R A T I N G I N S T R U C T I O N S | WTB4S 8028211/2023/10/20 | SICK
Subject to change without notice
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