SICK WTF12L Instructions D'utilisation page 40

OPERATING INSTRUCTIONS
6.5 Additional functions
7 Troubleshooting
en
40 O P E R A T I N G I N S T R U C T I O N S | WTF12L/WTF12V
IO-Link
The sensor can be used in standard I/O mode (SIO) or IO-Link mode (IOL). All auto‐
mation functions and other parameter settings are effective in IO-Link mode and in
standard I/O mode. Output of binary switching signals in standard I/O mode via pin
4 / black wire and via pin 2 / white wire.
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 5: 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, although
an object is in the path of the
beam.
Yellow LED does not light up,
no object in the path of the
beam
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
Distance between the sensor
and the object is too long or
sensing range is set too short
The sensing range distance is
too large
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
background. / Clean the opti‐
cal surfaces . / Check sens‐
ing range and adjust if nec‐
essary. / Check the character‐
istics of the background in
accordance with the specifica‐
tions.
Increase the sensing range
Reduce the sensing range,
see teach-in
8027710.1HYU/2023/04/25 | SICK
Subject to change without notice