Troubleshooting Table; Disassembly And Disposal; Maintenance - SICK GRTB18V Instrucciones De Operación

7.1

Troubleshooting table

8

Disassembly and disposal

9

Maintenance

8021184.16B5 | SICK
Subject to change without notice
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
Yellow LED lights up, no object
in the path of the beam
Object is in the path of the
beam, yellow LED does not
light up
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).
NOTE
Disposal of batteries, electric and electronic devices
According to international directives, batteries, accumulators and electrical or
•
electronic devices must not be disposed of in general waste.
• The owner is obliged by law to return this devices at the end of their life to the
respective public collection points.
•
WEEE: This symbol on the product, its package or in this document, indi‐
cates that a product is subject to these regulations.
SICK sensors are maintenance-free.
We recommend doing the following regularly:
Clean the external lens surfaces
•
Check the screw connections and plug-in connections
•
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
Distance between the sensor
and the background is too
short
Distance between the sensor
and the object is too long or
sensing range is set too short
TROUBLESHOOTING
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
sensing range and adjust if
necessary, see figure 10,
page 9
Reduce the sensing range,
see figure 10
increase the sensing range,
take note of the distance
between the sensor and the
background, see figure 10
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