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+-- Thread: VFD (/showthread.php?tid=7375980)
VFD - TheCabinetmaker - 06-03-2024
I have a Shaper with A 5HP 3ph motor. I was thinking of using a VFD to control the speed. It's my understanding I will need one that will provide constant torque. Has anyone done this and/or have any thoughts on which VFD to use?
RE: VFD - EdL - 06-03-2024
I use a static phase conv. on my 5hp shaper.
Never had the need for a variable speed, the 2 speed pulleys work fine.
Ed
RE: VFD - Philip1231 - 06-04-2024
(06-03-2024, 07:34 PM)TheCabinetmaker Wrote: I have a Shaper with A 5HP 3ph motor. I was thinking of using a VFD to control the speed. It's my understanding I will need one that will provide constant torque. Has anyone done this and/or have any thoughts on which VFD to use?
Here is a good article on VFDs:
Vector Control Article
Check out my earlier post where I used a Lenze VFD to control a drill press.
Drill Press Speed Control
RE: VFD - jteneyck - 06-04-2024
(06-03-2024, 07:34 PM)TheCabinetmaker Wrote: I have a Shaper with A 5HP 3ph motor. I was thinking of using a VFD to control the speed. It's my understanding I will need one that will provide constant torque. Has anyone done this and/or have any thoughts on which VFD to use?
I think the VFD has to have 2X the rated motor HP. 10 HP single phase VFD's are big $'s. I think most people stop considering them above 3HP. But I'm wrong a lot, so it's worth looking into further.
John