On Tue, 3 Mar 2020, Jon Elson wrote:
Date: Tue, 03 Mar 2020 20:54:55 -0600
From: Jon Elson <[email protected]>
Reply-To: EMC developers <[email protected]>
To: EMC developers <[email protected]>
Subject: Re: [Emc-developers] 2.7.15 PID Fix
On 03/03/2020 10:54 AM, andy pugh wrote:
On Tue, 3 Mar 2020 at 16:50, Jon Elson <[email protected]> wrote:
Does anybody have a more specific case of how it is failing?
https://forum.linuxcnc.org/38-general-linuxcnc-questions/38367-2-7-15?start=0
So, the pid command-deriv was not used in the past? Geez, that could explain
a LOT of issues with
servo tuning before the change.
I use feedback-deriv in my servo systems, would a non-functioning
command-deriv make that not
work right?
Jon
No, command-deriv is only used for the FF1 feedforward calculation
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