Re: [CAD_CAM_EDM_DRO] VFD ??

Jon Elson wrote:

>Ron Kline wrote:
>
>
>
>>I'm probably oversimplifying this but it sounds like I could just buy a
>>large , like 15 HP one set it on 60 HZ and run all the 3 phase stuff in
>>the shop from it ??
>>Someone tell me why this won't work .
>>
>>
>>
>>
>VFDs are designed to run ONE motor. Most of them have large warnings in the
>manuals to NEVER put any switch between the VFD and the motor. The
>inductance
>of the motor windings can generate voltage spikes when opened or closed
>that can destroy
>the VFD. Many VFDs will trip when suddenly presented with a stopped
>motor when
>they aren't expecting it.
>
>Jon
>
>

I figured that was too simple .
Thanks


Ron K

>
>

[Non-text portions of this message have been removed]