SICK SureSense HL18G Manual De Operación página 6

7 Table Fault diagnosis
8017852 | SICK
Subject to change without notice
LED indicator/fault pattern /
LED indicator/fault pattern
Green LED does not light up /
Green LED does not light up
Green LED does not light up /
Green LED does not light up
Green LED does not light up /
Green LED does not light up
Yellow LED flashes /
Yellow LED flashes
TABLE FAULT DIAGNOSIS
Cause /
Cause
No voltage or voltage below
the limit values /
No voltage or voltage below
the limit values
Voltage interruptions /
Voltage interruptions
Sensor is faulty /
Sensor is faulty
Sensor is still ready for opera‐
tion, but the operating conditi‐
ons are not ideal /
Sensor is still ready for opera‐
tion, but the operating conditi‐
ons are not ideal
Measures /
Measures
Check the power supply,
check all electrical connecti‐
ons (cables and plug connecti‐
ons) /
Check the power supply,
check all electrical connecti‐
ons (cables and plug connecti‐
ons)
Ensure there is a stable power
supply without interruptions /
Ensure there is a stable power
supply without interruptions
If the power supply is OK, re‐
place the sensor /
If the power supply is OK, re‐
place the sensor
Check the operating conditi‐
ons: Fully align the beam of
light (light spot) with the re‐
flector. / Clean the optical sur‐
faces (sensor and reflector). /
Readjust the sensitivity (po‐
tentiometer) / If the potentio‐
meter is set to the max. sen‐
sing range: Reduce the dis‐
tance between the sensor and
the reflector, and check the re‐
flector type against graphic
H. / Reflector is not suitable
for the application in question
(we recommend only using
SICK reflectors) / Damping of
the object is < 10% / Check
sensing range and adjust if
necessary; see graphic H. /
Distance between the sensor
and the reflector is too long /
Check the operating conditi‐
ons: Fully align the beam of
light (light spot) with the re‐
flector. / Clean the optical sur‐
faces (sensor and reflector). /
Readjust the sensitivity (po‐
tentiometer) / If the potentio‐
meter is set to the max. sen‐
sing range: Reduce the dis‐
tance between the sensor and
the reflector, and check the re‐
flector type against graphic
H. / Reflector is not suitable
for the application in question
(we recommend only using
SICK reflectors) / Damping of
the object is < 10% / Check
sensing range and adjust if
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