Re: [CAD_CAM_EDM_DRO] 5HP VFD

Vince Endter wrote:

>I am looking for a 5HP VFD that will take single phase input.
>Automation directs drives stop at 3hp with single phase.
>
>
>

If you are not going to max it out in a home shop environment, then almost
any 5 Hp VFD will work. These things are rated to run for 5-10 years, flat
out, in a 50 C equipment cabinet. Using it intermittently, at less than
full rated power, in a 25 C environment, it should handle it fine. I
have used
a 1 Hp drive rated for 3-phase input only on a 1 Hp Bridgeport, and it
has not
caused any problem at all. I've been using it for something close to 10
years,
now!

On the other hand, if it is for air compressor duty, for instance, then
I would
definitely go to a larger size VFD, say a 7.5 Hp model.

There are a few new models turning up that have lost phase protection.
Maybe we should start a list of drives known to work on single-phase power,
and those known to shut down if they don't see 3-phase.

Jon