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How the dynamic Teach-in work with the KTS / KTX contrast sensors and important settings.
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contrast sensors
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How does the dynamic teach-in work with the KTS and KTX contrast sensors?
There are many applications where it is advantageous to carry out the teach-in remotely:
inaccessible places
multi-lane application
carousel with a high number of contrast sensors
This can be done simply by activating the teach-in input.
The dynamic teach-in can be set in different ways. This happens with the sensitivity Setting
Auto = the sensitivity mode is defined by control-input (can be configured)
fine & middle = threshold is set close to mark according to the recorded contrast profile
coarse = threshold is set 50 % between the highest and lowest peak
Here you can find an example with several black print marks on a white background, there are some thin lines on the background that should not be recognized as a print mark. In the most applications the background can be blanked. In our example a background blanking is not possible, and we want to setup the contrast sensor in such a way, that it works anyway.
Case 1:
Dynamic Teach-in with sensitivity setting "Coarse"
robust threshold setting
the background noise must be blanked by the customer
Case 2:
Dynamic Teach-in with sensitivity setting "Middle"
