SICK WLA16P, Operating Instructions Manual

Page: 26 / 162

Table: Alignment
Figure 14: Alignment 1 Figure 15: Alignment 2
7.2 Check the application conditions
WLA16 are photoelectric retro-reflective sensors in which the autocollimation principle
has been combined with a multi-receiver element, thereby ensuring the greatest possi‐
ble resistance to depolarizing objects combined with a very high sensing range. This
means the WLA16 has a high operating reserve (insensitivity to dust) and does not
exhibit any switching errors with depolarizing objects.
Adjust the distance between the sensor and the reflector according to the correspond‐
ing diagram [see
table 14 ] (x = sensing range, y = operating reserve).
NOTE TIP:
Should switching errors nevertheless arise due to extremely depolarizing objects, the
WLA16 can also be adapted to these extreme conditions and the switching errors
suppressed by means of a teach-in (via IO-Link or using the Teach-in button on the
housing).
Table 14: Application conditions
0
1,000
100
10
1
2
(6.56)
4
(13.12)
10
(32.81)
8
(26.25)
6
(19.69)
Function reserve
Distance in m (feet)
4
2
1
3
5
Sensing range
WLA16P-xxxxx1xx
Figure 16: Characteristic line 1: Standard
reflector
1
Reflector PL22
2
Reflector P250, PL30A
Sensing range Sensing range typ. max.
1
2
3
4
5
0
3.5 5 0
6 8 0
3 4 0
6.5 9 0
7 10 0
8
(26.25)
Distance in m (feet)
2
(6.56)
6
(19.69)
10
(32.81)
4
(13.12)
Figure 17: Bar graph 1: Standard reflector
1
Reflector PL22
2
Reflector P250, PL30A
3
Reflector PL20A
4
Reflector PL40A
5
Reflector PL80A, C110A
7
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26 O P E R A T I N G I N S T R U C T I O N S | WLA16 8020348.1DS6/2021-11-24 | SICK
Subject to change without notice
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