RE: EMC 2.2.13 almost there!

["Tim Goldstein" <tgoldste-at-mlh-services.com>]

Besides setting the INPUT and OUTPUT parameters the same as Ray wisely
advised, I found it necessary to up the P value. If P was set too low I got
a few steps and then a follow error. As I started upping the P value I would
get a complete move at a low speed, but would again get follow errors at
higher rates. A further increase in P finally eliminated all of my follow
errors at any speed.

You can tune the P (I, D, FF1, FF2, FF3, etc.) from the settings menu right
in Xemc or TKemc. Just remember the settings are for the currently selected
axis and they are not saved back to the ini file, so when you find ones that
work write them down and manually edit your ini file. I found that P values
of 100 - 1000 all seemed to work for me. Ray gave some tuning advise and
from what I got out of it (please correct me if I got this wrong) higher P
values are probably better as long as it does not cause the motors to start
getting jittery.

Tim
[Denver, CO]

> -----Original Message-----
> From: emc-at-nist.gov [emc-at-nist.gov]On Behalf Of Clint Bach
> Sent: Sunday, March 26, 2000 11:05 AM
> To: Multiple recipients of list
> Subject: EMC 2.2.13 almost there!
>
>
>
> Ray,
>
> Thanks for the help with my ini file.
>
> I'm Sooooo... close to running now. Changing the polarities for enable
> and limits and such lets me get the machine out of estop and turned on.
> This is very good! With just one more change I believe I'll have it on
> the down hill slide. All three axes move in manual mode but they only
> take about three steps and stop with a following error message. How do I
> loosen these up? There seems to be several places in the ini file to
> give parameters.
>
> BTW, minimilltask no longer gives error messages on start up. I don't
> mind their absence!
>
> Now I think I'm REALLY close to having a running system!
>
> Thanks,
>
> Clint Bach
>
> PS.  I'm using stepper motors and freqmod...