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Thread: two motors off a vfd?

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  1. 06-22-2009, 06:56 PM #1
    integerspin
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    two motors off a vfd?

    Would it be possible to run my lubrication system[10W motor continously run] and the coolant[motor about 5inch diam by 4inches long[no plate]] pump, from one vfd? I am guessing the coolant motor is around a 1/4hp.
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  2. 06-22-2009, 07:16 PM #2
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    Al_The_Man
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    Do you intend to use it permanently set for 50hz?
    If so, you most likely should have no problems, especially for those small a motor.
    The only thing I can see is they may have to be the same pole count, 2 or 4, for setting up the parameters.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

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  3. 06-22-2009, 08:26 PM #3
    integerspin
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    Seems the answer is get a vfd and see.
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  4. 06-22-2009, 08:41 PM #4
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    Al_The_Man
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    I have used two identical motors on a VFD and variable speed/Hz, but not ones that were different size so it may be a case of each application being different and may well be a case of try and see.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.
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  5. 06-22-2009, 08:51 PM #5
    integerspin
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    I would be switching from the oil pump to having both pumps running.
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