CAD CAM EDM DRO - Yahoo Group Archive

Re: AC noise on DC effect stepper drivers?

on 1999-07-14 13:08:56 UTC
Jon,

Make sure that you know what the change of direction delay is for you
drivers. If your software is too fast for the drivers, you will loose
steps.

Bob Campbell

----- Original Message -----
From: Jon Anderson <janders@...>
To: <CAD_CAM_EDM_DRO@onelist.com>
Sent: Wednesday, July 14, 1999 12:04 PM
Subject: [CAD_CAM_EDM_DRO] AC noise on DC effect stepper drivers?


> From: Jon Anderson <janders@...>
>
> My dad turned up something investigating our lost step problems and I
> wondered if anyone knows if the following can be a problem:
>
> Dad remembered that some full wave bridge rectifiers can leak AC into
> the DC output. He checked and found 43vac on top of the 43vdc we're
> getting out of our unregulated power supply.
> The power supply was built from schematics supplied with some CyberPak
> drivers I was using and consists of a transformer, capacitor, full wave
> rectifier, and bleed resistor for the cap.
>
> Can this AC be causing occasional lost steps? And even if not, is it
> something we really ought to filter out? (I'm assuming yes, but thought
> I'd ask)
>
> Thanks,
>
> Jon Anderson
>
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Discussion Thread

Jon Anderson 1999-07-14 10:04:08 UTC AC noise on DC effect stepper drivers? R.Dean, Nr Atlanta, GA 1999-07-14 23:31:58 UTC Re: AC noise on DC effect stepper drivers? Jon Elson 1999-07-14 12:15:00 UTC Re: AC noise on DC effect stepper drivers? Jon Anderson 1999-07-14 12:20:13 UTC Re: AC noise on DC effect stepper drivers? WAnliker@x... 1999-07-14 12:34:00 UTC Re: AC noise on DC effect stepper drivers? Robert Campbell 1999-07-14 13:08:56 UTC Re: AC noise on DC effect stepper drivers? Jon Anderson 1999-07-19 11:28:38 UTC Re: AC noise on DC effect stepper drivers?