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Thread: Spindle motor and VFD for 110v

  1. #1

    Default Spindle motor and VFD for 110v

    Hi,

    Just need some experienced advice if the following set up would work well:

    1. 2.2kw spindle
    Speed:24000rmp, Power:2.2Kw, Voltage:220V, Current 8A, Freq. 400Hz, 3Phase

    2.JNEV-101-H1 VFD
    1 HP 115 Volt -- USE AS A PHASE CONVERTER PLUS GET VARIABLE SPEED, Model JNEV-101-H1, Single Phase Input ONLY, Three Phase Output,Frequency Control Range 0 to 200Hz

    is the 1HP Teco VFD with 0-200Hz frequency range and a 4amp supply enough to power the spindle which needs 8A, 400Hz frequency?

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  2. #2
    Registered vger's Avatar
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    It may work... but... 2.2Kw works out to about 2.5 HP so first off it would be underpowered. With a 0-200 Hz range of drive you would only get about 12K RPM or half the available speed of the spindle.



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    Hi shadowless

    If your spindle is 8amp then you will need a drive to suit which would be near 16amp my be more on 120v

    Your question was would the 1hp Teco VFD do the job NO it will not run your 8amp spindle motor

    You will need around a 3hp VFD to run that spindle motor

    Mactec54


  4. #4

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    Is hitachi L100-007MFU a better match? It support 0.7kW Motor
    , with a Frequency range of 0.5 - 360 Hz, 4 amps Output Current.

    Or should i get a lower 0.8kW Spindle to match the VFD?



  5. #5

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    what if i get a inverter to step up the 110v residential supply to 220v and get a 2hp TECO 7300 CV to drive the 2.2kw spindle?



  6. #6
    Community Moderator Al_The_Man's Avatar
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    Why don't you wire up a 240v outlet from your panel?
    Al.

    CNC, Mechatronics Integration and Custom Machine Design (Skype Avail).

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.


  7. #7

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    does all household panel support 240v?



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    Registered johnmac's Avatar
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    Most houses have 240 volts. If the power line coming to your house has 2 insulated wires wrapped around a bare silver wire, you have 240 volts. If you have central air, electric stove, or electric drier, you have 240 volts.

    The problem you are running into is the power needed for the spindle you need would require too many amps at 120 volts. By running the spindle on 240 volts, only half the amps are being drawn. The electronic components in the VFD help dictate the limit.

    I have been checking into this for myself. I feel your pain!

    John



  9. #9
    Community Moderator Al_The_Man's Avatar
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    The thing to remember here is that current does not automatically double if the voltage halves, the double current assumes you have increased the load impedance to obtain the same wattage.
    IOW if you had a 1kw resistive load on 240v, running it on 120v would Halve the current as the result would be 500watts.
    If you increased the load to obtain the same wattage, i.e. 1K 120v then the current would double.
    Al.

    CNC, Mechatronics Integration and Custom Machine Design (Skype Avail).

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.


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    Hi shadowless

    As I said before you will need a 3hp VFD to run the 2.2KW Spindle even if you run it on 240v or 120v a 2Hp VFD would not last very long for long life of the drive you want a little bigger VFD than your motor

    Mactec54


  11. #11

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    Thanks for all the good advice so far.

    what would be the recommended minimum kw for the spindle if i want to cut aluminium?



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