Re: [CAD_CAM_EDM_DRO] Re: Phase converter questions

Hi Lee and others,

Thanks for letting me (and everyone) know that the bigger VFD's will
work on single phase input power - with appropriate de-rating, of
course. I had just assumed that there was a difference in the circuitry
to synthesize the three phases that wasn't applicable at the higher
power levels. It's good to know that this is generally not the case.
It opens up more sizes of VFD's for consideration in the home shop!

Cheers, Peter

Lee Studley wrote:

>Hi,
>Im my situation, I've got a 4hp spindle motor on my 4J SeriesII BP.
>I found a 25hp VFD on Ebay for a bargain price, and it has been
>working well for me on single phase 220vac. One huge benefit is the
>reduce startup current needed as compared to spinning up a 7.5hp
>idler then the 4hp spindle. I was popping a large breaker at the fuse
>
>
>
>