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Troubleshooting
8
Disposal
9397275/2024-11-05 | SICK
Subject to change without notice
The Troubleshooting table indicates measures to be taken if the sensor stops working.
Table 9: Troubleshooting
LED/fault pattern
Yellow LED does not light up
even though the light beam
is aligned to the receiver and
there is no object in the path of
the beam
No object in beam path, no out‐
put signal
Yellow LED flashes
Yellow LED lights up, no object
in the path of the beam
The product 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
Test input (Test) is not con‐
nected properly
Sensor is still ready for oper‐
ation, but the operating condi‐
tions are not ideal
The beam of light of a pho‐
toelectric through-beam sen‐
sor hits the receiver of
another (neighboring) photo‐
electric through-beam sensor
O P E R A T I N G I N S T R U C T I O N S | GSE6S
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 the operating condi‐
tions: Fully align the beam
of light (light spot) with the
receiver. / Clean the optical
surfaces . / If the potentiome‐
ter is set to the max. sensing
range: Reduce the distance
between the sender and the
receiver and check / Check
sensing range and adjust if
necessary.
Swap the sender and receiver
arrangement at every sec‐
ond through-beam photoelec‐
tric sensor and ensure that
there is sufficient distance
between the through-beam
photoelectric sensors
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