Re: [CAD_CAM_EDM_DRO] Re: Gecko and Anaheim

Not if you have good dynamic current control and the motor insulation is
good enough to handle the voltage spikes it actually sees.

cvl

----- Original Message -----
From: <john@...>
To: <CAD_CAM_EDM_DRO@egroups.com>
Sent: Thursday, August 10, 2000 4:16 PM
Subject: [CAD_CAM_EDM_DRO] Re: Gecko and Anaheim


> Sorry to butt in on this thread but Mariss's original reply is copied
> below.
> Mariss states
> >" To get the maximum power from a 7A, 80V drive, pick a 7 Amp, 4
> >volt motor. "
>
> Surely a 4V motor running on 80v supply will burn out.
> Am I missing something here ?
>
> > ----- Original Message -----
> > From: Mariss Freimanis <geckohall@h...>
> > To: <CAD_CAM_EDM_DRO@egroups.com>
> > Sent: Monday, June 12, 2000 6:14 PM
> > Subject: [CAD_CAM_EDM_DRO] Re: Gecko and Anaheim
> > > Now to bring this all together. Size 42 motors I'm sure you have
> > > noticed have much higher detent torque than size 34 or 23 motors.
> > > This is the reason why size 42 motors run out of steam before the
> > > smaller motors do. Second, for the same amperage, a size 42 motor
> > has
> > > much higher inductance and rated voltage than a 34 motor. That
> means
> > > they come into their own at much higher supply voltages; 160 to
> 200
> > > VDC. To get the maximum power from a 7A, 80V drive, pick a 7 Amp,
> 4
> > > volt motor. This will be either a 4 stack 34 or a single stack 42.
> > > For peak power, gear the motor to run just past the speed where
> the
> > > drive ceases chopping (i.e. current limiting).
> > >
>
>
>
>
>
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