Re: [CAD_CAM_EDM_DRO] Re: Servo drives- Mariss Rutex PID and Tuning with a O-Scope,Tuning without a scope

/// The method I used to tune the Gecko's without a scope was basically by ear. Just adjust the damping so the servo wasn't too lazy starting and stopping and adjust the gain up until the servo slightly hummed at idle and then backed it down a bit. Must be pretty close because they work well.

Ron

Mariss Freimanis <mariss92705@...> wrote:
Tuned or mistuned, a servo will arrive at the correct place. All
tuning does is optimize the settling time. This for most applications
is of little consequence.

Rutex is a competitor to our drives but I can say nothing bad about
them because they have always been a fair and honest competitor. Like
us, they build good drives at a good price.

There are people that prefer them just as there are people that
prefer our drives to theirs. It's a Coke versus a Pepsi kind of
thing. I'd rather not be goaded into putting a fair and good
competitor into a bad light. The world is big enough for the likes of
us and them and a dozen more.

Mariss



--- In CAD_CAM_EDM_DRO@yahoogroups.com, "turbulatordude"
wrote:

> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "Alan Marconett"

> wrote:
> > Hi Dave,
> >
> > What's this about PID tuning? What are the inputs to the 'scope?
> Some sort
> > of encoder or tach on the shaft? Plus some display of the input
> commands?
> >
> > Alan KM6VV
>
>
> I took a brief look at the Rutex site and they claim a faster and
> better PID for more stable control. Faster than what?? I think than
> their old one ?
>
> They show a screen shot of the stable motor operation. And, I

gather

> that screen is from the software monitoring the motor paramters ?
>
> Also, the people who have po-poo'd G-320's seem to all complain

about

> tuning. (one was upset that he couldn't tune it without having to
> spend the extra $$ for an encoder) but also, everyone who has used a
> scope to tune them speaks highly of the drive.
>
> Since there are a few pc-scope free-ware programs, I assumed that
> people are using them to tune the servo drives, and that being the
> case, I also assumed that someone would have done a "ho-to" about

it.

>
> I also assume that 90% of the people tune them quickly and easily or
> at least satisfactorily, from the methods at hand.
>
> Dave

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