SICK SureSense HL18L Manual De Operación página 4

8017856.YMH6 | SICK
Subject to change without notice
Only apply voltage/switch on the power supply (U
tions have been established. The green LED indicator on the top of the sensor
lights up.
Explanations of the connection diagram (Graphic B):
Switching outputs Q and /Q (according to Graphic B):
Switching output Q (according to Graphic B):
HL18L-P (PNP: load -> M)
HL18L-N (NPN: load -> L+)
L = light switching
D = dark switching
Alarm / Health = diagnostics output (see Additional functions)
4 Align the sensor with a suitable reflector. Select the position so that the red emit‐
ted light beam hits the center of the reflector. Tip: Use the signal strength light bar
on the back of the sensor to help you align it correctly. The sensor must have a
clear view of the reflector, with no object in the path of the beam [see Graphic E/F].
You must ensure that the optical openings of the sensor and reflector are comple‐
tely clear.
Optimized alignment can be achieved and verified by using the signal strength light
bar located on the back cover of the sensor. The LEDs on the light bar will illumina‐
te corresponding to the signal strength of light received by the sensor. When no or
only red LEDs are illuminated, the sensor is receiving no or too little signal to switch
the output. The first yellow LED will illuminate at the minimum switching threshold
and the green LEDs will continue to illuminate as the received light increases [see
Graphic F].
Image: E
5 Sensor which it is not possible to set: The sensor is set to factory settings and rea‐
dy for operation.
After alignment is complete, move a non-transparent object into the path of the be‐
am. Refer to graphics C and G to check the function. If the switching output fails to
behave in accordance with graphic C, check application conditions. See section
Fault diagnosis.
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Image: F
Sensor with potentiometer:
v
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COMMISSIONING
> 0 V) once all electrical connec‐
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