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IndustryArena Forum > CNC Electronics > Stepper Motors / Drives > How to Connect Stepper Drivers to PSU
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  1. #1
    Join Date
    May 2009
    Posts
    1332

    How to Connect Stepper Drivers to PSU

    I read the stepper motor drivers must be fed with individual cables from the PSU (power supply unit) but I have four drivers to connect and my PSU (48VDC, 12.5A) only has 3 terminals for POS and 3 for NEG. This means that in one terminal I will have to connect 2 drivers. The stepper motors are each 2.8A

    My Y and A axis are slaved so I was thinking to connect them 2 to one terminal but I wonder if this is a good solution.

    Any ideas which combination is the best?
    Nicolas

  2. #2
    Join Date
    Jan 2018
    Posts
    1516
    Quote Originally Posted by kolias View Post
    I read the stepper motor drivers must be fed with individual cables from the PSU (power supply unit) but I have four drivers to connect and my PSU (48VDC, 12.5A) only has 3 terminals for POS and 3 for NEG. This means that in one terminal I will have to connect 2 drivers. The stepper motors are each 2.8A

    My Y and A axis are slaved so I was thinking to connect them 2 to one terminal but I wonder if this is a good solution.

    Any ideas which combination is the best?
    Should be fine either way, any 2 doubled up.
    You've gone for a good sized psu for it.

  3. #3
    Join Date
    May 2009
    Posts
    1332

    Re: How to Connect Stepper Drivers to PSU

    Quote Originally Posted by dazp1976 View Post
    Should be fine either way, any 2 doubled up.
    You've gone for a good sized psu for it.
    Thanks for your time
    Nicolas

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