Troubleshooting; Troubleshooting Table; Disassembly And Disposal - SICK GRL18V Instrucciones De Operación

7

TROUBLESHOOTING

7 Troubleshooting
7.1

Troubleshooting table

8

Disassembly and disposal

10
The sensitivity is adjusted with the potentiometer (type: 270°). Clockwise rotation: operat‐
ing reserve increased; counterclockwise rotation: operating reserve reduced. We recom‐
mend setting the potentiometer to "Maximum". A lower operating reserve may be neces‐
sary for depolarizing surfaces.
The sensor is adjusted and ready for operation.
The Troubleshooting table indicates measures to be taken if the sensor stops working.
Table 5: Troubleshooting
LED indicator/fault pattern
Green LED does not light up
Green LED does not light up
Green LED does not light up
Yellow LED flashes
Signal interruptions when
object is detected
The sensor must be disposed of according to the applicable country-specific regula‐
tions. Efforts should be made during the disposal process to recycle the constituent
materials (particularly precious metals).
Cause
No voltage or voltage below
the limit values
Voltage interruptions
Sensor is faulty
Sensor is still ready for opera‐
tion, 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 the operating condi‐
tions: Fully align the beam of
light (light spot) with the
reflector / Clean the optical
surfaces (sensor and reflec‐
tor) / Readjust the sensitivity
(potentiometer) / If the poten‐
tiometer is set to the max.
sensitivity: Reduce the dis‐
tance between the sensor and
the reflector, and check the
reflector type / Reflector is not
suitable for the application in
question (we recommend only
using SICK reflectors)/ Check
sensing range and adjust if
necessary, see table 4. / Dis‐
tance between the sensor and
the reflector is too long
Reduce sensitivity or change
the position of the sensor
8021183.16B5 | SICK
Subject to change without notice