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IndustryArena Forum > CNC Electronics > Stepper Motors / Drives > DRIVER CURRENT SETUP - MOTOR RATED CURRENT
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  1. #1
    Join Date
    Oct 2014
    Posts
    17

    Wink DRIVER CURRENT SETUP - MOTOR RATED CURRENT

    I have two different 8-wire steppers in parallel configuration with two different Leadshine digital drives. I'm looking for to match my driver current settings with motor specs.
    Dip switch settings of the driver are printed in DM556 as Peek and RMS , in DM860 as Peek and Ref. Which one I should match with my motor rated current, Peak or Ref/RMS? For max performance obviously

    I have read some posts about this subject, but haven't found clear answer. Votes are like 50/50.... Peak/RMS

    My hardware:
    Motor1, PK299-E4.5A (RATED CURRENT A/PHASE)
    Bipolar (Parallel) 6.2A
    Bipolar (Series) 3.18A
    Unipolar 4.5A
    DM860 DIGITAL DRIVER
    REF Current - Peak Current
    ......
    4.28A ---- 5.14A
    4.86A ----- 5.83A
    5.43A ----- 6.52A
    6.00A ----- 7.20A
    Motor2,
    M60STH88 (RATED CURRENT A / PHASE)
    Bipolar (Parallel) 4.2A
    Bipolar (Series) 2.1A
    Unipolar 3A
    DM556 DIGITAL DRIVER
    Peak Current - RMS Current
    .....
    3.8A ----- 2.7A
    4.3A ----- 3.1A
    4.9A ----- 3.5A
    5.6A ----- 4.0A

    Leadshine manual is also writing:
    "Parallel ConnectionsAn 8 lead motor in a parallel configuration offers a more stable, but lower torque at lower speeds. But because of the lower inductance, there will be higher torque at higher speeds. Multiply the per phase (or unipolar) current rating by 1.96, or the bipolar current rating by 1.4, to determine the peak output current."

  2. #2
    Join Date
    Oct 2014
    Posts
    17

    Re: DRIVER CURRENT SETUP - MOTOR RATED CURRENT

    Leave the details appart, let's finnish it once to make it clear. Every Leadshine drive owner has had to face this guestion: Peak or RMS....?

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