SICK WL9-3 Instrucciones De Operación página 8

9 Disassembly and disposal
10 Maintenance
8017640 | SICK
Subject to change without notice
LED indicator/fault pattern /
LED indicator/fault pattern
Green LED does not light up
Yellow LED flashes; if Alarm /
Health is present then take no‐
te of the corresponding output
signal /
Yellow LED flashes; if Alarm /
Health is present then take no‐
te of the corresponding output
signal
Yellow LED flashes (only brie‐
fly) /
Yellow LED flashes (only briefly)
Signal interruptions when ob‐
ject is detected /
Signal interruptions when ob‐
ject is detected
The sensor must be disposed of according to the applicable country-specific regulati‐
ons. Efforts should be made during the disposal process to recycle the constituent ma‐
terials (particularly precious metals).
SICK sensors are maintenance-free.
We recommend doing the following regularly:
• Clean the external lens surfaces
• Check the screw connections and plug-in connections
No modifications may be made to devices.
DISASSEMBLY AND DISPOSAL
Cause /
Cause
Sensor is faulty
Sensor is still ready for opera‐
tion, but the operating conditi‐
ons are not ideal /
Sensor is still ready for opera‐
tion, but the operating conditi‐
ons are not ideal
Teach-in mode /
Teach-in mode
Depolarizing property of the
object surface (e.g., tape), re‐
flection /
Depolarizing property of the
object surface (e.g., tape), re‐
flection
Measures /
Measures
If the power supply is OK, re‐
place the sensor
Check the operating conditi‐
ons: Fully align the beam of
light (light spot) with the re‐
flector. / Clean the optical sur‐
faces (sensor and reflector). /
Readjust the sensitivity
(teach-in) / Reflector is not
suitable for the application in
question (we recommend only
using SICK reflectors) / Check
sensing range and adjust if
necessary; see graphic H. /
Distance between the sensor
and the reflector is too long /
Check the operating conditi‐
ons: Fully align the beam of
light (light spot) with the re‐
flector. / Clean the optical sur‐
faces (sensor and reflector). /
Readjust the sensitivity
(teach-in) / Reflector is not
suitable for the application in
question (we recommend only
using SICK reflectors) / Check
sensing range and adjust if
necessary; see graphic H. /
Distance between the sensor
and the reflector is too long
Check the teach-in mode /
Check the teach-in mode
Reduce sensitivity or change
the position of the sensor /
Reduce sensitivity or change
the position of the sensor
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