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IndustryArena Forum > CNC Electronics > Stepper Motors / Drives > resistor calculation need help

Thread: resistor calculation need help

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  1. 03-30-2005, 03:04 AM #1
    mike10
    mike10 is offline Registered
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    Dec 2004
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    32

    resistor calculation need help

    im using 12v 18 amp computer power suply

    motor is vextra pk299-01ba 2 phase 2 amp, 6.2 volt , resistance 3.2ohs/coil

    torque 620
    uniopolar
    there is six wires on the motor my control board is not a chopper
    it recomends 4 resisters per motor.

    hope all the info needed is here
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  2. 03-30-2005, 03:09 AM #2
    MrBean
    MrBean is offline Gold Member
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    Oct 2003
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    593
    Download steppercalc. Will help with sizing resistors.

    http://www.eftechusa.com/StepResCalc.zip

    Regards Terry.....
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  3. 03-30-2005, 04:21 AM #3
    mike10
    mike10 is offline Registered
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    is this right?

    im getting 4 resistor
    @ 2.8-3.64 ohms
    min 15 watts
    is this correct
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