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DQ542MA Driver stalling motors

Discussion in 'General Electronics' started by MarkM_NJ, Jul 25, 2019.

  1. MarkM_NJ

    MarkM_NJ Veteran
    Builder

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    Hi everyone,
    I just upgraded my machine to DQ542MA drivers from tb6600 drivers. Machine is moving but when I try to move the machine at full speed the motors stall. (Video below). I tried lowering my max feedrate to 50mm/s with no luck. I have them configured for 1/4 stepping, 2.84 peak current. And half current on. Any suggestions?

    Nema 23 345oz high torque motors
    Meanwell 24v power supply
    Openbuilds 8mm leadscrew all axis
    Adruino uno with estlcam control software



    Also do you think I should be using 1/4 or 1/8 stepping?

    Thanks,
    Mark
    6F2B4AB6-238A-4A7F-BB24-1508BED4C11B.jpeg
     
  2. David the swarfer

    David the swarfer OpenBuilds Team
    Staff Member Moderator Builder

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    some combination of:
    reduce the acceleration
    increase the current
    check for friction in the drives (the leadscrew in the video runs offcenter, for example)
    increase the voltage, anything less than 24v will always be slow.
     
    Anthony Bolgar likes this.
  3. MarkM_NJ

    MarkM_NJ Veteran
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    David thanks for the reply.
    What would you recommend setting the current to, for the openbuilds nema 23 high torque motors? I shouldn’t go over 3 amps right?
     
  4. MarkM_NJ

    MarkM_NJ Veteran
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    I had to drop the current down to 1.92 to get it to work right. Think I might upgrade my 24v power supply to 36v now.
     

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