SICK WLD26, Operating Instructions Manual

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Table 4: Alarm / Health
Alarm ( ≤ 100 mA) Health ( ≤ 100 mA)
+ (L+)
Alarm
‒ (M)
+ (L+)
Health
‒ (M)
+ (L+)
Alarm
‒ (M)
+ (L+)
Health
‒ (M)
Test input
Test input: The WLD26 sensors feature a test input (“TI” or “Test” on the connection
diagram [
see table 2 and table 5 ]), 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 have to ensure that the TI is assigned accordingly.
It is important that there is no object between the sensor and reflector; activate the test
input (see the connection diagram [
see table 2 and table 5 ]). The send LED is shut
down or the detection of an object is simulated. Refer to table 5 to check the function.
If the switching output fails to behave in accordance with table 5 , check the application
conditions. See section Fault diagnosis.
Table 5: Test
Test → M Test → L+
+ (L+)
Test
– (M)
+ (L+)
Test
– (M)
+ (L+)
Test
– (M)
+ (L+)
Test
– (M)
7 Commissioning
1 Alignment
Align the sensor with a suitable reflector. Select the position so that the red emitted light
beam hits the center of the reflector. The sensor must have a clear view of the reflector,
with no object in the path of the beam [
see figure 1 ]. You must ensure that the optical
openings of the sensor and reflector are completely clear.
ADDITIONAL FUNCTIONS
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8020356.14CS | SICK
Subject to change without notice
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