CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] Re: VFD question

Posted by Brian Botton
on 2004-04-20 10:47:40 UTC
> > VFDs *MUST* be permanently wired to a motor. If you turn one
> > on without a motor you will probably damage something.
>
> Not true. Most if not all drives will do just fine if you run
> them with no motor connected.

Well, my manuls very explicity state never turn it on, much less
press the run button, without a motor wired in. If your manual
explicitly says this is okay, then I stand corrected. The 3 or 4
different vendor's manuals I've looked at say always keep a motor
connected.
My lathe has a 5hp motor, which means a big, expensive VFD. I spent
close to $700 for one with the needed capacity. I want that thing to
last forever and I'm not going to risk damaging it.

Brian

Discussion Thread

Greg Nuspel 2004-02-29 11:01:18 UTC VFD question Jon Elson 2004-02-29 11:41:38 UTC Re: [CAD_CAM_EDM_DRO] VFD question Dave Fisher 2004-02-29 17:27:54 UTC RE: [CAD_CAM_EDM_DRO] VFD question Bill Vance 2004-04-19 05:31:32 UTC VFD question stevenson_engineers 2004-04-19 07:44:37 UTC Re: VFD question Jon Elson 2004-04-19 09:40:15 UTC Re: [CAD_CAM_EDM_DRO] Re: VFD question metlmunchr 2004-04-19 11:55:03 UTC Re: VFD question washcomp 2004-04-19 12:01:31 UTC Re: VFD question Brian Botton 2004-04-19 19:31:12 UTC Re: [CAD_CAM_EDM_DRO] Re: VFD question Jon Elson 2004-04-20 00:14:28 UTC Re: [CAD_CAM_EDM_DRO] Re: VFD question Marv Frankel 2004-04-20 01:20:29 UTC Re: VFD question stevenson_engineers 2004-04-20 05:56:21 UTC Re: VFD question jmkasunich 2004-04-20 08:17:08 UTC Re: VFD question Brian Botton 2004-04-20 10:20:43 UTC Re: [CAD_CAM_EDM_DRO] Re: VFD question Brian Botton 2004-04-20 10:47:40 UTC Re: [CAD_CAM_EDM_DRO] Re: VFD question jmkasunich 2004-04-20 14:32:20 UTC Re: VFD question Marv Frankel 2004-04-20 23:28:09 UTC Re: VFD question mayfieldtm 2004-04-21 07:44:46 UTC Re: VFD question Stan Aarhus 2004-04-21 07:56:59 UTC Re: [CAD_CAM_EDM_DRO] Re: VFD question Marv Frankel 2004-04-21 08:17:40 UTC Re: VFD question Jon Elson 2004-04-21 09:13:32 UTC Re: [CAD_CAM_EDM_DRO] Re: VFD question stevenson_engineers 2004-04-21 09:52:49 UTC Re: VFD question stevenson_engineers 2004-04-21 09:55:41 UTC Re: VFD question