Re: VFD single phase 5hp

AC Tech (http://www.actechdrives.com/) make one, or you can derate a 3
phase input unit for single phase input. You can usually use 50% to 70%
of rated capacity when running on single phase input. If you can't find
anything in the literature, use 50% to be safe.

Basically it's the input section that needs to be derated when running
on single phase input. All of the current will be supplied from two
legs of the rectifier bridge instead of three, and the filter caps will
see more ripple. Everything from the DC bus on is pretty much
unaffected.

~petev

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Callcbm" <callcbm@...> wrote:
>
> ANy body now were to get a vfd for a 5hp using single phase. I found
one for
> 3hp single but not 5 hp single.
> willit hurt to use a 3hp on a 5 hp unit the lathe does and will not
see
> using full power. Or would a Rotary converter be better.
> Thanks Randy
>