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Thread: Stepper motor, voltage and inductance

  1. #1
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    Question Stepper motor, voltage and inductance

    Hello Dears,


    I have a burned-out steper motor : 86BHH76-400B-35J with technical data: Current: 4A, Inductance: 3.5 mH, Resistant: 0.62 Ohm
    Can I replace it with 85BYGH450A-06-05J - Current: 4A, Inductance: 2.3 mH, Resistant: 0.5 Ohm

    The difference are Resistant and Inductance.

    My power supply is 70V AC and stepper driver dma860h. Machine works on low feed rate.

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    Default Re: Stepper motor, voltage and inductance

    Looks like it should work fine (same current/torque)
    Lower inductance so maybe a bit better high speed performance
    Lower resistance so less power dissipation



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    Default Re: Stepper motor, voltage and inductance

    Thanks Dear,

    are 70 Volts for the Inductance: 2.3 mH OK?



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    Default Re: Stepper motor, voltage and inductance

    Quote Originally Posted by smart81bg View Post
    Thanks Dear,

    are 70 Volts for the Inductance: 2.3 mH OK?
    It should be fine, ripple current will be higher but I'm pretty sure the
    DMA860 has a 50 KHz or so switching frequency so the ripple will be minmal



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    Default Re: Stepper motor, voltage and inductance

    Quote Originally Posted by PCW_MESA View Post
    It should be fine, ripple current will be higher but I'm pretty sure the
    DMA860 has a 50 KHz or so switching frequency so the ripple will be minmal
    Thanks I will try, Hope will no damage anyting, Yes it is 70V AC.



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Stepper motor, voltage and inductance

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Stepper motor, voltage and inductance