After teach-in has been completed, it must be ensured that the setup is no longer
changed otherwise another teach-in will have to be carried out.
Teach-in quality
The teach-in quality indicates how successful the teach-in process has been. The
MLG-2 calculates this value based on the quality of the light level received.
The value remains constant until another teach-in process is carried out.
Process quality
The process quality indicates the quality of the light level currently being received. The
MLG-2 analyzes the light level received when the light path is unblocked and compares
this to the values after the last teach-in process.
If the received values are getting worse, the process quality drops.
Possible causes of a drop in process quality include:
•
Contamination or fogging of the front screen of the sender and/or receiver
•
Misalignment
•
Continuous partial blocking of a light beam or several light beams
3.4.7 Beam blanking
Individual beams can be blanked.
Figure 7: Detection area with beams blanked
1
Included beams
2
Blanked beams
3
Structural restrictions on the detection area
The MLG-2 offers a variety of options for masking beams.
3.5
Scan time
In the MLG-2, not all light beams are active at the same time, instead one light beam is
activated after the other starting from the bottom.
PRODUCT DESCRIPTION 3
8018748.1Q3I/2024-12-18 | SICK O P E R A T I N G I N S T R U C T I O N S | MLG-2 ProNet
17
Subject to change without notice
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