2011/11/2 Peter C. Wallace <[email protected]>
> On Wed, 2 Nov 2011, Andrew wrote:
>
> > Date: Wed, 2 Nov 2011 21:59:56 +0200
> > From: Andrew <[email protected]>
> > Reply-To: EMC developers <[email protected]>
> > To: EMC developers <[email protected]>
> > Subject: Re: [Emc-developers] Linear scales
> >
> > 2011/11/2 Peter C. Wallace <[email protected]>
> >
> >>> Should I just multiply 5.9 * 1m/s to get the voltage or it's more
> >>> complicated and other parameters involved?
> >>
> >> Since that is RMS you need the Square root of 2 in there so 8.3V
> minimum.
> >> but
> >> you also need to get the peak current through the winding resistance at
> >> maximum velocity to you need to add 6.9 Amps x 3.4 Ohms = ~24V so about
> 32V
> >> overall
> >>
> >> Peter, thank you very much!
> > I guess, HV version of 7i39 fits better here?
>
> Yes its quite close (7.5 A current limit) 48V should get you to about 3M/S
> at max force (maybe when you have a mistake!)
>
>
To prevent this, I can limit supply to 32V. But it's better not to lose
control anyway =)
Andrew
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