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Thread: Power supply

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  1. #1

    Power supply

    What kind of power supply and what specs would i need to run a total of 6 axes; X, 2 for Y, Z, A, and B? The X, 2 Y's, and the Z will be running NEMA 34s, the A and B are unknown for now.

  2. #2
    Join Date
    Nov 2013
    Posts
    4376

    Re: Power supply

    Hi,
    what is the highest voltage that your stepper drivers are rated for? If they are rated for 80VDC then get an 80VDC power supply.

    The next question is how much current will be required. If each of the steppers is 6A then the total is 36A, but that would be a huge supply.
    It would be extraordinary if all motors were drawing maximum power at the same time so you can economize by say halving your total, say 18A.
    Some people might select even less, say 1/3 or 12A and others might select more like 2/3 or 24A.

    Big high current supplies like these are expensive and so most people select switch mode supplies as they are economical at these sizes. The other, and in my
    opinion, better choice is a linear supply, ie a big toroidal transformer, rectifier and smoothing capacitors. They are more expensive initially but they are very forgiving
    and outperform most switch mode supplies under heavy intermittent loads.

    https://www.antekinc.com/1500w/

    Craig

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