Dynomotion

Group: DynoMotion Message: 4848 From: bradodarb Date: 5/8/2012
Subject: Tuning a Legend
Hello Tom,

I am having trouble tuning the Yaskawa Legend under load.

How do you recommend arriving at a reasonable base line for PID?

I do not understand enough about different hardware vendor's scaling values on PID params and haven't a clue how to calculate a reasonably safe and stable loop with your system.

If I can get it where it is stable enough to accept commanded position under normal load, I can fine tune it I'm sure.


Thanks,
Brad Murry
Group: DynoMotion Message: 4853 From: Tom Kerekes Date: 5/8/2012
Subject: Re: Tuning a Legend
Hi Brad,
 
Could you open a Thread on cnczone regarding this?  Maybe call it something like "KFLOP+Kanalog Analog Velocity Servo tuning".  I've yet to be able to convince anyone to do this.  There are already several Threads on tuning but they are involving SnapAmps which are a bit different than an Analog Drive through Kanalog.
 
But basically P gain alone should get something to work.
 
Regards
TK
 
 
 
 
 

Group: DynoMotion Message: 4857 From: bradodarb Date: 5/8/2012
Subject: Re: Tuning a Legend
Hello Tom,

http://www.cnczone.com/forums/dynomotion_kflop_kanalog/153840-kflop_kanalog_analog_velocity_servo.html#post1111515

-Brad Murry

--- In DynoMotion@yahoogroups.com, Tom Kerekes <tk@...> wrote:
>
> Hi Brad,
>  
> Could you open a Thread on cnczone regarding this?  Maybe call it something like "KFLOP+Kanalog Analog Velocity Servo tuning".  I've yet to be able to convince anyone to do this.  There are already several Threads on tuning but they are involving SnapAmps which are a bit different than an Analog Drive through Kanalog.
>  
> But basically P gain alone should get something to work.
>  
> Regards
> TK
>  
>  
>  
>  
>  
>
> From: bradodarb <bradodarb@...>
> To: DynoMotion@yahoogroups.com
> Sent: Tuesday, May 8, 2012 12:19 PM
> Subject: [DynoMotion] Tuning a Legend
>
>
>  
> Hello Tom,
>
> I am having trouble tuning the Yaskawa Legend under load.
>
> How do you recommend arriving at a reasonable base line for PID?
>
> I do not understand enough about different hardware vendor's scaling values on PID params and haven't a clue how to calculate a reasonably safe and stable loop with your system.
>
> If I can get it where it is stable enough to accept commanded position under normal load, I can fine tune it I'm sure.
>
> Thanks,
> Brad Murry
>