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    Default wiring power to a driver?

    Hi,
    I've begun to wire my steppers I'm stuck , To connect power my driver it has AC1 & AC2 is one POS. and one NEG.?
    wiring power to a driver?-20200214_124938-jpg

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    Last edited by rmachinist; 02-14-2020 at 03:32 PM.


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    Community Moderator ger21's Avatar
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    Default Re: wiring power to a driver?

    AC power does not use positive and negative.

    Gerry

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    Default Re: wiring power to a driver?

    I have 60volt switching power supply has POS and NEG. outputs



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    Default Re: wiring power to a driver?

    RM - but a SMPS puts out DC you need an AC output. You need a 20-80V AC power source. Put up an image of the output of the SMPS....Peter



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    Community Moderator ger21's Avatar
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    Default Re: wiring power to a driver?

    Yes, you have a DC power supply, and a drive that requires AC power.

    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

    Mach3 2010 Screenset
    http://www.thecncwoodworker.com/2010.html

    JointCAM - CNC Dovetails & Box Joints
    http://www.g-forcecnc.com/jointcam.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)


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    Default Re: wiring power to a driver?

    A DC power supply (30 to 110VDC) will work too, according to the manual. As long as it has enough power.



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    Default Re: wiring power to a driver?

    here is my power supply wiring power to a driver?-20200214_143159-jpg



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    Default Re: wiring power to a driver?

    citizen dream you say it don't matter ac or dc ? does it matter which way i hook it up?



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    Default Re: wiring power to a driver?

    COD - Can you show image of where in manual it says DC is OK? Why do they say AC when they could have said AC/DC??? Found it but does seem odd.... Peter

    it mentions it in 3 places but does not say which polarity to use so maybe does not matter???

    Attached Thumbnails Attached Thumbnails wiring power to a driver?-ac-dc-jpg  


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    Default Re: wiring power to a driver?

    Polarity does not matter. Input power goes to a diode bridge inside the servo, so you can connect "+" and "-" whichever way you like.



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    Default Re: wiring power to a driver?

    CitizenOfDreams Thanks! i will give it a go



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    Default Re: wiring power to a driver?

    I'd buy a toroidal AC supply. Something like a dual output 40v unit and wire it in series to output 80v AC.
    A 60v DC might be a dissapointment.

    Such as:
    https://uk.farnell.com/multicomp/vtx...40v/dp/1675097
    Or for a powerful system:
    https://uk.farnell.com/multicomp/vtx...40v/dp/1675107
    https://electro-dan.co.uk/electronics/wiringtrans.aspx



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    Default Re: wiring power to a driver?

    As no one else has mentioned it - that is a SERVO driver and you have said you are using STEPPERS with encoders elsewhere ? ? ? Servos maybe AC powered - steppers are most certainly DC powered and polarity connections will be important yo ensure rotation direction is as commanded and not reversed!



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    Default Re: wiring power to a driver?

    Quote Originally Posted by kawazuki View Post
    As no one else has mentioned it - that is a SERVO driver and you have said you are using STEPPERS with encoders elsewhere ? ? ? Servos maybe AC powered - steppers are most certainly DC powered and polarity connections will be important yo ensure rotation direction is as commanded and not reversed!
    We are talking about the power supply connection, not the motor connection. AC/DC power has nothing to do with the motor type, it depends on whether the driver has a built-in rectifier. This particular one does, so it can be powered with either AC or DC.



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