Hello Jon.

Well, the encoders that are already installed on one of our machines are
labelled with the Index pulse. The thing is I can't read the pulse with
halscope for example.

I just tried to use the home using only index pulse and apparently the
index pulse is working because the axis latches until it stops and it turns
always a single turn more or less eyeballing it.

The strange thing is I that I can't trigger the scope with the index pulse
on LinuxCNC, and also I can't measure the index on my other encoders. I
guess I should try to wire them to a LinuxCNC pc and make home manually to
see if they work ok.



2016-07-13 14:29 GMT-03:00 Jon Elson <[email protected]>:

> 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?
>
> Jon
>
>
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-- 
*Leonardo Marsaglia*.
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What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic
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J-Flow, sFlow and other flows. Make informed decisions using capacity planning
reports.http://sdm.link/zohodev2dev
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