On 02/11/2021 04:37 PM, Gene Heskett wrote:
So, looking at pid.error with a 100mv/div scale, 1 div would be .1
degree?
If you look closely at the Halscope screen, you will see
that it does NOT show a "v".
So, you would get a 100m/div scale, 100 milli-somethings.
If the INPUT_SCALE or SCALE in
the ini file is set right so that the DRO on the Axis screen
reads in degrees, then
one division would be .1 degree, at the 100m Halscope scale.
I think my gain is quite a bit higher than that, but I just ran
it from here and that is what the pid.error channel is showing for gain,
100m. Only the leading edge of a g0 mdi move shows more than .1 degree
of error, and slowing the max_accel would probably lower that, currantly
at 1000.. cruizing noise is perhaps +- .20 division worst case.
A little bit of FF2 can help with spikes at the beginning
and end of a move. But, VERY small amounts are required, in
the 0.001 range.
Jon
_______________________________________________
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
