CAD CAM EDM DRO - Yahoo Group Archive

Re: EMC question

on 2003-01-21 18:31:46 UTC
I think I should say... One reason I don't want to just can the PC is
the stability Problem doesn't seem to necessarily increase with speed.
In fact, I can really zip one 400 SPR stepper around with no more
likely a missed step than if it's turing at one revolution per minute.
Very strange, to me.

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "krnldmp <krnldmp@y...>"
<krnldmp@y...> wrote:
> Sorry so light on the specifics. I was prepared to observe some
> limitations from using a Slow processor at 225MHz, but my trouble
> occurs as massive trashing of what should be a fixed period pulse
> train with only one axis driven at very slow speed... Indeed, any
> speed.
>
> I'm using steppermod.o (I think that's the name.) I've considered
> trying freqmod to see if I get a more predictable output, however
more
> limited in speed.
>
> For the mention of it, the jitter may actually not be what should be
> considered jitter, at least not purely. It's difficult for me to
tell
> because my scope doesn't want to trigger very well on the walking
> repetition rate, but it seems as though the output may be getting
> gated by something.
>
> Another or rogue process? How could that be, I thought this software
> was fairly ironed out. Nothing says it should work with this
hardware
> though, or my software alignment. I'll be happy to figure this one
> out.

Discussion Thread

krnldmp <krnldmp@y... 2003-01-21 17:57:51 UTC EMC question Tim Goldstein 2003-01-21 18:04:31 UTC RE: [CAD_CAM_EDM_DRO] EMC question krnldmp <krnldmp@y... 2003-01-21 18:21:35 UTC Re: EMC question krnldmp <krnldmp@y... 2003-01-21 18:31:46 UTC Re: EMC question Matt Shaver 2003-01-21 21:45:05 UTC Re: [CAD_CAM_EDM_DRO] EMC question Ray Henry 2003-01-22 06:49:42 UTC Re: Re: EMC question jmkasunich <jmkasunich@y... 2003-01-22 07:11:34 UTC Re: EMC question krnldmp <krnldmp@y... 2003-01-22 08:02:55 UTC Re: EMC question krnldmp <krnldmp@y... 2003-01-22 08:27:15 UTC Re: EMC question Jon Elson 2003-01-22 09:49:40 UTC Re: [CAD_CAM_EDM_DRO] Re: EMC question Ray Henry 2003-01-22 10:28:16 UTC Re: Re: EMC question Ray Henry 2003-01-22 10:43:43 UTC Re: Re: EMC question jmkasunich <jmkasunich@y... 2003-01-22 12:09:17 UTC Re: EMC question j.guenther 2003-01-22 12:18:42 UTC RE: [CAD_CAM_EDM_DRO] Re: EMC question krnldmp <krnldmp@y... 2003-01-22 13:30:51 UTC Re: EMC question