SICK W34 Serie Instrucciones De Uso página 30

OPERATING INSTRUCTIONS
8 Devices with special features
9 Troubleshooting
en
10 Disassembly and disposal
30 O P E R A T I N G I N S T R U C T I O N S | WL34
WL34-B430S01, WL34-R230S02: preset to dark switching
WL34-B430S03: pin 2: not connected (without test input)
The Troubleshooting table indicates measures to be taken if the sensor stops working.
Table 8: Troubleshooting
LED/fault pattern
Yellow LED does not light up
even though the light beam
is aligned to the reflector and
there is no object in the path of
the beam
No object in beam path, no out‐
put signal
Yellow LED flashes; if Alarm is
present then take note of the
corresponding output signal
Signal interruptions when
object is detected
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).
Cause
No voltage or voltage below
the limit values
Voltage interruptions
Sensor is faulty
Test input (Test) is not con‐
nected properly
Sensor is still ready for oper‐
ation, but the operating condi‐
tions are not ideal
Depolarizing property of the
object surface (e.g., tape),
reflection
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
Check connection of the test
input. When using female
cable connectors with LED
indicators, make sure the test
input is assigned correspond‐
ingly.
Check operating conditions:
align light beam (light stop)
completely on the reflector /
cleaning of optical surfaces
(sensor and reflector) /if
potentiometer is set to max.
sensitivity: reduce distance
between sensor and reflec‐
tor and check reflector type /
reflector is not suitable for
selected application (we rec‐
ommend using only SICK
reflectors) /Check sensing
range and adjust if neces‐
sary. /distance between sen‐
sor and reflector is too large
Reduce sensitivity or change
the position of the sensor
8009201.1DM8/2022-09-05 | SICK
Subject to change without notice