Re: [CAD_CAM_EDM_DRO] Re: Monarch conversion to VFD

Thanks Bill.
I'll check that option out for sure.
Cheers

Marcus

----- Original Message -----
From: <wanliker@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Sunday, January 06, 2002 1:07 PM
Subject: Re: [CAD_CAM_EDM_DRO] Re: Monarch conversion to VFD


> In a message dated 1/6/2002 11:58:52 AM Mountain Standard Time,
> paul@... writes:
>
>
> >
> > An alternative to a VFD is a solid state DC control, if the DC motor
> > is in good condition. This isn't all that hard to do, but you need
> > 2 controllers: one for the armature and the other to do field weakening
> > to get to the top speed, plus a safety cutout in case the field supply
> > frazzes out.
> >
>
> Check out a company named FINCOR, they are big in the printing press
field,
> and they use a lot of DC motors there, with complete control of the motors
> from stop, slow creep, high speed with field weakening, all in one
package.
> bill