Re: [CAD_CAM_EDM_DRO] Major encoder trouble, need advice.

Henrik Olsson wrote:

> Then I mounted 10uF electrolytic cap right on the encoder and powered it all
> up, jogged at 20 rpm for 10seconds and immediatly got invalid
> counts...aaargh....
>

Well, it was certainly worth a try.....

> I took out and inspected all four brushes and they all look fine to me,
> although I'm no expert.
>
>

It's not the motor, since TWO other encoders work, up the the speed limit.

> *************************************************
>
>>> USDigital recomends the 26C32 receiver while the HP-UHU has the
>>> SN75115... big difference?
>>>
>
> Actually, the other "issue" with the drive that I mentioned had to with
> these specific filter caps. If I have ANY caps mounted it will not work.
>

Interesting. I'd expect the capacitors would need to be VERY small,
maybe 10's of pF to help.
You want to suppress microsecond-length transitions, only.

Jon