Check The Application Conditions - SICK WLA12L Betriebsanleitung

OPERATING INSTRUCTIONS
6.2

Check the application conditions

en
32 O P E R A T I N G I N S T R U C T I O N S | WLA12L
Figure 3: Alignment using BluePilot
WLA12L 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 WLA12L has a high operating reserve (insensitivity to contamination) 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 [figure 6] (x = sensing range, y = operating reserve).
NOTE TIP:
Should switching errors nevertheless arise due to extremely depolarizing objects, the
WLA12L 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).
WLA12L-xxxxx1xx:
Operating reserve
100
5
4
1
10
2
3
1
0 5 10
(16.40) (32.81) (49.21)
Distance in m (feet)
Recommended sensing range for the best performance
Figure 4: WLA12L-xxxxx1xx
1
0
2
0
3
0
4
0
5
0
0
A
Recommended sensing range for the best performance
15 20
Figure 5: WLA12L-xxxxx1xx
(65.62)
1/2.5
4.5 6
4 4.5
7 11
12 20
5 10 15 20
(16.40) (32.81) (49.21) (65.62)
Distance in m (feet)
D
C
B
8027709/2022-04-12 | SICK
Subject to change without notice