Disassembly And Disposal - SICK WTB12L Betriebsanleitung

7 Troubleshooting
8

Disassembly and disposal

8027714/2022-04-12 | SICK
Subject to change without notice
Information on the IO-Link functions (IODD) can be found in the enclosed IO-Link
photoelectric sensor operating instructions or downloaded from
the device part number.
The Troubleshooting table indicates measures to be taken if the sensor stops working.
Table 4: Troubleshooting
LED/fault pattern
Yellow LED does not light up
even though the light beam is
aligned to the object and the
object is within the set sensing
range
Green LED flashes
Digital outputs not according to
graphic
Digital outputs not according to
graphic
Yellow LED flashes
Yellow LED lights up, no object
in the path of the beam
Object is in the path of the
beam, yellow LED does not
light up
The sensor must be disposed of in line with applicable country-specific regulations.
When disposing of them, you should try to recycle them (especially the precious met‐
als).
OPERATING INSTRUCTIONS
Cause
No voltage or voltage below
the limit values
Voltage interruptions
Sensor is faulty
IO-Link communication
IO-Link communication
Parameter settings made
manually, which deviate from
the standard
Sensor is still ready for oper‐
ation, but the operating condi‐
tions are not ideal
The sensing range distance is
too large
Distance between the sensor
and the object is too long or
sensing range is set too short
O P E R A T I N G I N S T R U C T I O N S | WTB12L/WTB12V
www.sick.com under
Measures
Check the power supply,
check all electrical connec‐
tions (cables and plug connec‐
tions)
Ensure there is a stable power
supply without interruptions
If the power supply is OK,
replace the sensor
-
-
Initiate a factory reset. The
digital outputs are reset to
factory settings.
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.
Reduce the sensing range
Increase the sensing range
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