On 02/11/2021 09:41 PM, Gene Heskett wrote:
Well, it takes FF1 = 20.5 to get a cruise at about null,
And I did have FF2 = .5, but .35 cancels the stop spike.
So my question is why are these so far out of the normal range where for
a stepgen FF1=1.0 and FF2 = .001 is about right. Something else must be
seriously out of whack. But what?
Well, I have no idea, I just know what WORKS, by trial and
error (and a little knowledge of the
control theory behind it.)
pid_A.output is almost straight to
the pwmgen.A.value, with that pwmgen in mode 2. An idb in the middle of
the link seems to be without measurable effect, but maybe I've not tried
a high enough idb.amount. That is currantly at 10, a value I would think
would make it overshoot and oscillate but does not.
I have no idea what hardware you have cobbled up, so I
really don't know what is going on.
Jon
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