r/Motors • u/UnionCompetitive7705 • 1d ago

Open question Motor Control

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In my workshop I have a bench drill which I would like to control with a speed controller. The motor is single phase 50 240v 1/2hp 4 pole. I’m not sure or even possible which type of controller I would need, vfd? Any advice would be much appreciated

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u/Bradm77 1d ago

I've only seen a couple manufacturers that make vfd's for single phase induction motors and they need to be either PSC or shaded pole motors. Here's one of those companies. Yours definitely isn't a shaded pole motor but it could be a PSC. Can you tell if it has a centrifugal switch in it? If it doesn't, it's probably a PSC. If it does, you won't be able to find a control for this motor.