Troubleshooting; Troubleshooting Table - SICK GRSE18V Instrucciones De Operación

8

Troubleshooting

8.1

Troubleshooting table

8021182.1ABM / 2020-12-21 | SICK
Subject to change without notice
Test input: The GRSE18(S)V sensors feature a test input ("TI" or "Test" on the connec‐
tion diagram [table 1]), which can be used to switch the sender off and, therefore,
check that the sensor is functioning correctly: If female cable connectors with LED
indicators are used, you must ensure that the TI is assigned accordingly.
There must be no object between the sender and receiver; activate the test input (see
the connection diagram [table
of an object is simulated. Use the following table to check the function. If the switching
output fails to behave in accordance with the following table, check the application
conditions. See section Fault diagnosis.
Table 6: Test
Smart Tasks
The Troubleshooting table indicates measures to be taken if the sensor stops working.
Table 7: Troubleshooting
LED indicator/fault pattern
Green LED does not light up
Green LED does not light up
Green LED does not light up
Green LED lights up, no output
signal when object is detected
Yellow LED flashes
1], TI at 0 V). The send LED is shut down or the detection
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
COMMISSIONING
Test
+ (L+)
Test
– (M)
+ (L+)
Test
– (M)
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
See the note on connecting
the TI
Check the operating condi‐
tions: Fully align the beam
of light (light spot) with the
receiver / Clean the optical
surfaces / Readjust the sensi‐
tivity (potentiometer) / If the
potentiometer is set to the
max. sensitivity: Reduce the
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