Gallery, Projects and General > How do I??
Can this motor be used with a speed controller?
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JHovel:
I think its worth the trouble!
You DO have to have 415V (not440) 3 phase power coming out of the VFD. The options are to buy a VFD from arceurotrade.co.uk if you don't have 415V in your shed. Put a nice label on your switch that says "Do NOT switch while motor is spinning" and put a stop button wired to the stop control terminals of the VFD right NEXT to it - maybe in the same housing - just so you or a visitor don't get tempted.
Sometimes its worth having a two speed motor. This motor may well give you 5600rpm in the high speed range and plenty of torque at 300rpm  in the low speed range. You don't need to rewire anything in the motor. These are 'Dahlander' wound Delta/double-Y motors. And in delta they still need 415V because they connect two coils in series in each of the delta legs (and in parallel in Y, making it 'double-Y).
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