On 07/13/2016 08:56 AM, Leonardo Marsaglia wrote: > Hello to all. > > We just tested some Heindenhain encoders and as happened with other > encoders we can't sense the index pulse. We tried to detect it with a 20 > nano seconds period on a digital scope but nothing happens. All the other > pulses are working perfect except the index one. > > I have to mention that this happened with other encoders too, but since we > didn't need to use them with index pulse on the other machines we just let > it that way and didn't worry about it. > > Well, if the scope does not trigger on it, and it triggers fine on the A and B, then it just isn't there! Now, of course, the index will only happen once per rev, so you have to make a full turn to see the pulse. Are you SURE these encoders actually have the index pulse?
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