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Thread: Dmm Dyn4 pmdx126 ess control build

  1. #13
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    Default Re: Dmm Dyn4 pmdx126 ess control build

    Got a build thread somewhere?



  2. #14
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    Default Re: Dmm Dyn4 pmdx126 ess control build

    Dmm Dyn4 pmdx126 ess control build-20170316_092528-jpgThis is for those wiring 240v to the drives. I have supplied 240v to the main which is black and red and control power the two blue each wire has 120v to ground there is no nuetral being used if you do that you will fry/cook it!!!!!!
    R&S 240v
    L1&L2 240v
    The only ground is on the chassis screw below the screw for the motor ground.
    Follow the print if you dont have 3 phase then it'll just be one less wire to the main power.
    If the wire in the schematic doesnt have the earth/ground PE symbol then it is power.
    The print represents 3 phase 240v power being used. That means measuring across any two should have 240v or maybe 220v depends on what your power company supplies you.



  3. #15
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    Default Re: Dmm Dyn4 pmdx126 ess control build

    Do you have separate contactors for each drive, or one 32 amp contactor for all four? The manual says to use a contactor rated at 30 amps for each drive.
    I'm currently laying out a control box using four 400watt servos, and was wondering what size contactor to use. The 400w drives only draw 3.5amps each.

    Gerry

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


  4. #16
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    Default Re: Dmm Dyn4 pmdx126 ess control build

    I have a 32amp contactor and breaker for the 3 750w drives and a 18amp contactor and 20amp breaker for the spindle drive which is 1.8kw all running 240v for main and control power.
    But depends on if your going to use 120v or 240v
    If 240v an 18amp contactor would be fine for 3 400w drives. I would try to get the breaker a little closer like 15amp



  5. #17
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    Default Re: Dmm Dyn4 pmdx126 ess control build

    LtDan,

    I'm building up a CNC router and I have 4 DMM servos (dyn4) - so thank you for the very timely post. I've yet to purchase a motion controller - I've been considering the PMDX-126/ESS or PMDX-424 (all in one) for use with mach 4. Since yours is a recent build - I was wondering if you had a compelling reason <not> to use something like the 424? Features? Speed? After a bit of research one difference that I could see was that the 424 and similar boards from PMDX max out at 100 khz step/dir whereas the ESS goes up to 4 mhz. I don't know if that limitation affects me or not.

    This is a first-time build (for me), the router is a cnccrouterparts 12x6, the application is mostly light materials - maybe a very occasional aluminum part. I went with servos (and dmm) because I believed that my cutting speeds will be relatively high... routing wing mold surfaces, foam cores etc.

    Thanks in advance for any thoughts, and thanks for showing how a control box should be laid out...

    T



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    Default Re: Dmm Dyn4 pmdx126 ess control build

    Yes it does! I run my ess at 2mkz on each axis, this is for accuracy .0001 And the add on speed controller for a second spindle that I mount on the table. My main spindle on the Z-axis is run like an axis/spindle.



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Dmm Dyn4 pmdx126 ess control build
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