Re: [CAD_CAM_EDM_DRO] VFD: Standard of Sensorless?

Kevin R. Walsh wrote:

>Looking to get a VFD to run the spindle motor on my Bridgeport
>Series I Rigid Ram. It has a variable speed belt drive, so the VFD
>will mostly just be doing the single phase to 3 phase conversion for
>me. I am trying to figure out if I can use a standard VFD or if it
>is worth the extra $100 to get the sensorless VFD. Basically
>deciding between the Hitachi L100-015NFU and the SJ100-015NFU.
>
>Suggestions? This will be used with EMC, so I'll be using the
>digital ON/OFF inputs, not the analog speed control.
>
>

You can use the standard VFD. The sensorless VFD's are for
positioning or very tight speed control situations.

Jon