Re: [CAD_CAM_EDM_DRO] VFD and motor question

volitan712003 wrote:

>Hello -
>
>This VFD stuff is all new to me. I'm still reading up on it so I don't
>have to ask questions that have already been answered, so sorry if
>this has...
>
>If I understand correctly, I can take a motor like this: http://cgi.
>ebay.com/ws/eBayISAPI.dll?ViewItem&category=26226&item=3837536121&rd=1
>
>and hook it to a VFD, and run it with complete spindle speed control
>from my single phase house electric (I live in the US)?
>
>

Yes. I have both my mill and my lathe powered this way. You need to use a
VFD that has somewhat more capacity than normal, unless the VFD is
specifically rated for single phase input. I do use a 1 Hp VFD on the 1 Hp
spindle of my mill, but it is extremely rare that I get up to full
load. If you
run your machine hard, or in production, you would probably want a 3 Hp
VFD for that 1.5 Hp motor.

To run from the 240 V mains, you need a motor that can be run from 208 or
230 V 3-phase power.

Jon