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Re: OT: PID motor control


 

Practical tuning issues.

In a nutshell I can arrive at some setting for the PID coefficients that work for a step movement of say 2 revolutions of the motor, but don't work for 20 revolutions, or 200 revolutions (or vice versa)... I need the PID to position the motor with no overshoot, hesitation or oscillation (*) and within 1 tick of the required position regardless of the step size in set point.

If you know how to resolve this, let's talk off list.

(*) I almost wrote "repetition" there but that would be getting mixed up with the radio show "Just a Minute" which requires you to talk for one minute without hesitation, deviation or repetition.

David

-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of David Templeton
Sent: 12 January 2022 08:18
To: [email protected]
Subject: Re: [TekScopes] OT: PID motor control

Theoretical or practical?

I always struggled to tie up the theory with the real world. It seemed much simpler to set up a temperature or motor controller, than deal with poles, zeros, Laplace transforms, eigon values,¡­¡­

David

On 12 Jan 2022, at 03:19, David C. Partridge <david.partridge@...> wrote:

?Is there anyone skilled in this field who'd be prepared to help me?

If so please contact me off-list mailto:david.partridge@...

Thanks
David





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