CAD CAM EDM DRO - Yahoo Group Archive

RE: [CAD_CAM_EDM_DRO] EMC and freqmod

Posted by Tim Goldstein
on 2001-05-07 07:21:20 UTC
> -----Original Message-----
> Is the EMC freqmod used only for closed loop stepper control or will it
> work on a simple open loop system? I was successful running steppermod
> but always get following errors when I try the freqmod.

Freqmod is for open loop steppers, but with an improved (but more resource
intensive) task generating the pulse timing. There is another module that if
I remember correctly has dro in the name which is for closed loop steppers
(If you look at the read me from about Feb. 2000 you will find mention of
it). It is based on freqmod, but is distinctly different.

Missed getting the error message. If you send it we can probably get this
figure out real quick.

> Also, I am having a problem with my RTLinux. After booting my system I
> can run EMC fine for about an hour then system response starts to slow
> down eventually coming to a complete stop. I have to do a hard reset of
> the system and can run for another hour or so. Memory leak in the RT
> system?
>
> I am using RedHat 5.2, with upgraded kernel headers and source from the
> RedHat site.
> kernel-headers-2_0_36-3_i386.rpm
> kerner-source-2_0_36-3_i386.rpm
> Real Time patch release 9.
> EMC 07-June-2000

You will need one of the Linux gurus for this. I always used the kernel
filed on the RedHat 5.2 CD and never had problems. Suggest moving to the BDI
now.

Tim
[Denver, CO]

>
> FAQ: http://www.ktmarketing.com/faq.html

Discussion Thread

Terry Toddy 2001-05-07 06:50:29 UTC EMC and freqmod Tim Goldstein 2001-05-07 07:21:20 UTC RE: [CAD_CAM_EDM_DRO] EMC and freqmod Terry Toddy 2001-05-07 07:39:05 UTC Re: [CAD_CAM_EDM_DRO] EMC and freqmod Tim Goldstein 2001-05-07 09:07:46 UTC RE: [CAD_CAM_EDM_DRO] EMC and freqmod Jon Elson 2001-05-07 09:17:28 UTC Re: [CAD_CAM_EDM_DRO] EMC and freqmod Terry Toddy 2001-05-07 10:08:55 UTC Re: [CAD_CAM_EDM_DRO] EMC and freqmod Jon Elson 2001-05-08 09:26:26 UTC Re: [CAD_CAM_EDM_DRO] EMC and freqmod Terry Toddy 2001-05-10 09:41:31 UTC Re: [CAD_CAM_EDM_DRO] EMC and freqmod