SICK HTB18 Instrucciones De Operación página 18

7
COMMISSIONING
18
HTB18L:
% of sensing range
20
15
10
6%/90%
1
5
0
0 50 100 150
(1.97) (3.94) (5.91)
Figure 4: HTB18L, % of sensing range
Figure 5: Description of the sensing range areas
3 Sensing range setting
Sensor which it is not possible to set: The sensor is adjusted and ready for operation.
Refer to graphic to check the function. If the switching output fails to behave in accordance
with graphic, check application conditions. See section Fault diagnosis.
Sensor with potentiometer:
The sensing range is adjusted relative to the background with the potentiometer (type:
270°).
Clockwise rotation: sensing range increased; counterclockwise rotation: sensing range
reduced.
Turn the potentiometer clockwise until the yellow LED indicator lights up. When an object is
moved into the path of the beam, the yellow LED indicator must go out. If the yellow LED
indicator remains lit when an object is moved into the path of the beam, repeat the adjust‐
ment.
We recommend placing the switching state in the object, e.g.,
ing range has been adjusted, the object is removed from the path of the beam, which
causes the background to be suppressed and the switching output to change (see graphic
C).
x = 250 mm, y = 15 mm
20%/90%
(= 15% of 250 mm)
2
1
90%/90% 2
3
3
200 250 300
(7.87) (9.84) (11.81)
A = detection distance (depending on
Distance in mm (inch)
object remission)
B = adjustment range
white back-
ground (90%)
x y
30 250
30 250
30 250
A B
see figure 6. Once the sens‐
8017850.16K9 | SICK
Subject to change without notice
300
300