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Karl Townsend
 
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Default Plugging 2 HP motor into a 1 HP VFD

FWIW
I bought a 5 hp VFD for my lathe project. When I went to the salvage yard
I found a perfect 7 1/2 hp three phase motor for the job. (In fact two
identical brand new, so i got both) After many trials, I gave up, no way
would that VFD start the larger motor. The instant you try to start a motor
you get an inrush of current. The VFD brain says this is more than it should
be and shuts down. This is on the Hitachi VFD drives. This little learning
experience cost me $1000. School of hard knocks is a good teacher.



--
(©¿©) An apple a day keeps the doctor away.
Two apples a day gets the doctor's OK.
Five a day makes you a fruit grower like me.

Karl Townsend