SICK WTM4SP-A00 Serie Instrucciones De Uso página 59

7 Troubleshooting
7.1 Troubleshooting integrated IO-Link devices
8 Maintenance
8028212/2023/10/20 | SICK
Subject to change without notice
Details on configuration can be found in the detailed IO-Link description:
Information: Photoelectric sensors, SICK Smart Sensors /
The Troubleshooting table indicates measures to be taken if the sensor stops working.
Table 12: 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
Object is in the path of the
beam, yellow LED does not
light up
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 /
This SICK sensor is maintenance-free.
We do, however, recommend that the following activities are undertaken regularly:
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
Excessive background remis‐
sion
Sensitivity is set too low or dis‐
tance between the sensor and
the object is too long
Remission capability of the
object is insufficient
O P E R A T I N G I N S T R U C T I O N S | WTM4S
Technical
IO-Link.
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.
Check changes to the back‐
ground. Reduce the sensitivity
of the sensor or use sensors
with background suppression
Increase the sensing range,
take note of the distance
between the sensor and the
background
Increase the sensing range,
take note of the distance
between the sensor and the
background
IO-Link.
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