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).
> >