SICK GRTE18SV, Operating Instruction

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Use and Table 3 to check the function. If the switching output fails to behave in accordance
with Table 3, check the application conditions. See section Fault diagnosis.
3 Sensing range setting
Sensor which it is not possible to set: The sensor is adjusted and ready for operation.
The sensitivity (sensing range) is adjusted with the potentiometer (type: 270°). Clockwise
rotation: sensitivity (sensing range) increased; counterclockwise rotation: sensitivity (sens‐
ing range) reduced. We recommend placing the object within the sensing range. Once the
sensitivity is set, remove the object from the beam path. The switching output changes.
Table 4: Sensing range setting
The sensor is adjusted and ready for operation.
7 Troubleshooting
The Troubleshooting table indicates which measures are to be taken if the sensor stops
working.
7.1 Troubleshooting table
Table 5: Troubleshooting
LED indicator/fault pattern Cause Measures
Green LED does not light up No voltage or voltage below
the limit values Check the power supply,
check all electrical connec‐
tions (cables and plug connec‐
tions)
Green LED does not light up Voltage interruptions Ensure there is a stable power
supply without interruptions
Green LED does not light up Sensor is faulty If the power supply is OK,
replace the sensor
Yellow LED flashes Sensor is still ready for opera‐
tion, but the operating condi‐
tions are not ideal Check the operating condi‐
tions: Fully align the beam of
light (light spot) with the
object / Clean the optical sur‐
faces / Readjust the sensitiv‐
ity (potentiometer)
7
TROUBLESHOOTING
10
8021181 | SICK
Subject to change without notice