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| Phase Converters and VFD Running 3 phase machines on single phase power and variable frequency drive discussion |
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#1
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I am looking into purchasing a VFD from Hitachi and notice their are only three connections that go to the motor,unless I am missing something in the manual. The motor I'm using has 6 connections at the motor box, and there are really 18 in total at the motor,9 in+ 9out right. Will this motor still work with a VFD? I imagine using t 1 2 3 for one direction and t 4 5 6 for another direction so what do you do connect a switch between the VFD and motor? I didn't think you were supposed to do that? I asked another question regarding a static converter ealier but I think now the smarter thing to do is look into a VFD. If it will work.
__________________ Dennis |
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#2
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| You most likely have a motor that is either dual speed or dual voltage. You do not switch the motor leads for reversal, only three leads, or four counting the earth ground conductor. The connections should be in the terminal cover. Al.
__________________ CNC, Mechatronics Integration and Machine Design. “Logic will get you from A to B. Imagination will take you everywhere.” Albert E. |
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#3
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| The data plate does say hi + lo voltage and hi + lo speed. Thanks Al I'll check out the VFD intructions. Hitachi said it should be no problem. I won't do any wiring untill I am positive about it.
__________________ Dennis |
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