Troubleshooting; Troubleshooting Table - SICK GRTB18V Instrucciones De Operación

7

TROUBLESHOOTING

7 Troubleshooting
7.1

Troubleshooting table

10
The sensor is adjusted and ready for operation.
Figure 11: Detection
The Troubleshooting table indicates which measures are 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
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
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
object / Clean the optical sur‐
faces / Readjust the sensitiv‐
ity (potentiometer) / Check
8021184 | SICK
Subject to change without notice