Dynomotion

Group: DynoMotion Message: 1277 From: morgtod Date: 6/14/2011
Subject: Maximum encoder resolution
I've got 5000 count encoders ( 20,000 quadrature ), and I need 1500 rpm, I come up with 500khz, is this do-able? DC servos.

Todd
Group: DynoMotion Message: 1278 From: Tom Kerekes Date: 6/14/2011
Subject: Re: Maximum encoder resolution
Yes, the max count rate is 1.25MHz.
 
TK

--- On Tue, 6/14/11, morgtod <todmorg@...> wrote:

From: morgtod <todmorg@...>
Subject: [DynoMotion] Maximum encoder resolution
To: DynoMotion@yahoogroups.com
Date: Tuesday, June 14, 2011, 7:40 PM

 
I've got 5000 count encoders ( 20,000 quadrature ), and I need 1500 rpm, I come up with 500khz, is this do-able? DC servos.

Todd
Group: DynoMotion Message: 1279 From: morgtod Date: 6/14/2011
Subject: Re: Maximum encoder resolution
Wow, That was quick! The rapids settings in KmotionCNC seem to get a little funky when I set the encoder counts up to 125000 per inch, it goes into a super low speed,and goes even lower using a shift with the arrow key is there a setting I'm missing?

BTW- Everything is working great with the new setup and the 5-volt pin fixed.

Todd

--- In DynoMotion@yahoogroups.com, Tom Kerekes <tk@...> wrote:
>
> Yes, the max count rate is 1.25MHz.
>  
> TK
>
> --- On Tue, 6/14/11, morgtod <todmorg@...> wrote:
>
>
> From: morgtod <todmorg@...>
> Subject: [DynoMotion] Maximum encoder resolution
> To: DynoMotion@yahoogroups.com
> Date: Tuesday, June 14, 2011, 7:40 PM
>
>
>  
>
>
>
> I've got 5000 count encoders ( 20,000 quadrature ), and I need 1500 rpm, I come up with 500khz, is this do-able? DC servos.
>
> Todd
>
Group: DynoMotion Message: 1280 From: Tom Kerekes Date: 6/14/2011
Subject: Re: Maximum encoder resolution
Hi Todd,
 
I don't know what you mean by "funky".  What if you make moves in the KMotion Step Response Screen with similar velocities?  Are you losing counts? 
 
Regards
TK

--- On Tue, 6/14/11, morgtod <todmorg@...> wrote:

From: morgtod <todmorg@...>
Subject: [DynoMotion] Re: Maximum encoder resolution
To: DynoMotion@yahoogroups.com
Date: Tuesday, June 14, 2011, 7:52 PM

 
Wow, That was quick! The rapids settings in KmotionCNC seem to get a little funky when I set the encoder counts up to 125000 per inch, it goes into a super low speed,and goes even lower using a shift with the arrow key is there a setting I'm missing?

BTW- Everything is working great with the new setup and the 5-volt pin fixed.

Todd

--- In DynoMotion@yahoogroups.com, Tom Kerekes <tk@...> wrote:
>
> Yes, the max count rate is 1.25MHz.
>  
> TK
>
> --- On Tue, 6/14/11, morgtod <todmorg@...> wrote:
>
>
> From: morgtod <todmorg@...>
> Subject: [DynoMotion] Maximum encoder resolution
> To: DynoMotion@yahoogroups.com
> Date: Tuesday, June 14, 2011, 7:40 PM
>
>
>  
>
>
>
> I've got 5000 count encoders ( 20,000 quadrature ), and I need 1500 rpm, I come up with 500khz, is this do-able? DC servos.
>
> Todd
>
Group: DynoMotion Message: 1283 From: morgtod Date: 6/15/2011
Subject: Re: Maximum encoder resolution
Tom,
My bad, I was setting the jerk, but I didn't realize you had to hit the step or move button to make it stick.

--- In DynoMotion@yahoogroups.com, Tom Kerekes <tk@...> wrote:
>
> Hi Todd,
>  
> I don't know what you mean by "funky".  What if you make moves in the KMotion Step Response Screen with similar velocities?  Are you losing counts? 
>  
> Regards
> TK
>
> --- On Tue, 6/14/11, morgtod <todmorg@...> wrote:
>
>
> From: morgtod <todmorg@...>
> Subject: [DynoMotion] Re: Maximum encoder resolution
> To: DynoMotion@yahoogroups.com
> Date: Tuesday, June 14, 2011, 7:52 PM
>
>
>  
>
>
>
> Wow, That was quick! The rapids settings in KmotionCNC seem to get a little funky when I set the encoder counts up to 125000 per inch, it goes into a super low speed,and goes even lower using a shift with the arrow key is there a setting I'm missing?
>
> BTW- Everything is working great with the new setup and the 5-volt pin fixed.
>
> Todd
>
> --- In DynoMotion@yahoogroups.com, Tom Kerekes <tk@> wrote:
> >
> > Yes, the max count rate is 1.25MHz.
> >  
> > TK
> >
> > --- On Tue, 6/14/11, morgtod <todmorg@> wrote:
> >
> >
> > From: morgtod <todmorg@>
> > Subject: [DynoMotion] Maximum encoder resolution
> > To: DynoMotion@yahoogroups.com
> > Date: Tuesday, June 14, 2011, 7:40 PM
> >
> >
> >  
> >
> >
> >
> > I've got 5000 count encoders ( 20,000 quadrature ), and I need 1500 rpm, I come up with 500khz, is this do-able? DC servos.
> >
> > Todd
> >
>