16 квітня 2012 р. 16:44 andy pugh <bodge...@gmail.com> написав:

> On 16 April 2012 14:34, Andrew <parallel.kinemat...@gmail.com> wrote:
>
> > 9 - Z (always 4.2V)
>
> It might be that the encoder polarity is wrong. You could try
> inverting the relevant 7i43 pins (I think that is possible).
>

Thought about it. But for quadrature signal it does not matter much, does
it? Just would be inverse direction or something.
I guess I need the o-scope to look what's going on at 7i39 encoder
connector, not on 7i43 pins... the problem must be there. Because with
another encoder (the same model) I get some different pulse trails, with
almost-quadrature signal for one direction (wrong scale, though), but
opposite direction fails again.

In the last resort, I could connect the encoders to 7i43 pins directly. But
I would not like to cut the cable yet, it's just wrong. Maybe some other
solution comes up.

Andrew
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