Quote Originally Posted by David Keller NC View Post
Yeah, my bad - that was a poor example. But you can get VFDs that are 3ph in, 3 ph out, 1 ph in, 3 ph out, and 1 ph in, 1 ph out. Here's a better example:

http://www.anaconsystems.com/text/opti_e2.html
Thanks for the pointer to those VFDs. They are expensive, though. For many tools, the VFD could cost more than the tool.

Mike