Re: Rotary Phase Converter and Voltage stabilization

What brand and model number is your VFD?
Is it suited for use with a CNC mill?

Thanks

Gary

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Robin Szemeti <list@r...>
wrote:

> On Wednesday 24 December 2003 15:10, camfambmw540 wrote:
>
> > My mill is 3hp 3ph 9.6amp draw ran out of my garage (residential
> > power)
>
> to be honest, I would not even consider a rotary convertor these

days ...

>
> I'd go for one of the modern electronic single to 3ph convertors.

I run a

> 3hp/2.2kw lathe on one and its just fine and dandy. you get

smoooooth starts,

> reversing, varispeed, DC injection braking ... the works, for a

couple of

> hundred bucks. The varispeed alone was worth doing it for .. the

smooth

> starting an low initial draw from the supply is another big plus.

I know

> some people swear by rotaries, but to be honest, theyve had their

day. For

> driving a motor an electronic convertor is almost always the way

to go ...

> hell, even the people WITH 3ph supplies are using them!!
>
> I had to wire the 3ph motor from star to delta mode in the

terminal block,

> but that was all ... have a look on ebay for 'invertor'

or 'VFD' ...

>
> --
> Redpoint Consulting Limited
>
> Real Solutions for a Virtual World
> http://www.redpoint.org.uk