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ok.... I got in mind to put a short on the Switch and not on the octocoupler...
I'll try it, thank you

But If i put a short across the optocoupler's input, it will appears as a limit detection ? Circuit will be closed ?

Maybe I haven't catch what you mean by a short

Ok, thank you i'll try tonight.

Hello,

thank your for your answer.

Yes I think about to replace 5v by 24v, I'll try it tonight.
The problem i have is false triggering, I use mechanical switch normally open.

I have...

Hello All,

I'm trying for months to found an answer on this forum about the end switch problem I meet from long time now.
I found several good tips who improve the behavior of my home made CNC...