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vfd rotation motor
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  1. PLCs, VFDs, Motors and Controls
    Hi, I am new to this forum and non english speaker (please pardon my broken english) I recently installed a sumitomo VFD to a 3 phase motor 7.5 kW (delta connection). When i run the VFD, the motor hums and didn't rotate at first, then i opened the fan cover and give the intial push to the fan...
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