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KUKA motor losing its zero.

  • capital9
  • March 4, 2022 at 12:32 PM
  • Thread is Unresolved
  • capital9
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    • March 4, 2022 at 12:32 PM
    • #1

    Hi guys,

    I have been using ME_16_60_42 motors, used a linear drive. I have taught it zero position, and after I run it for rounds back and forth as test and check it’s zero position, they will be no more there. Amazingly it loses the zero position, I again tried the same process teach it a zero position and did test with back and forth motion. And again it loses the zero position.

    So, what are the possible reason for losing zero. Can it be mechanical problem or can it be because of ASYPTP motion command or can it be because of machine data, what can it be?

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    SkyeFire
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    • March 4, 2022 at 2:29 PM
    • #2

    "Loses zero position". Does this mean that the robot throws a Mastering error? Or simply that the zero position of the axis is not mechanically repeatable?

    If the latter, the most likely culprit is mechanical slippage between the motor drive shaft and the linear axis it is driving.

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    panic mode
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    • March 4, 2022 at 3:27 PM
    • #3

    or wrong gear ratio is used and perceived difference is result of winding up the axis.

    1) read pinned topic: READ FIRST...

    2) if you have an issue with robot, post question in the correct forum section... do NOT contact me directly

    3) read 1 and 2

  • capital9
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    • March 4, 2022 at 3:55 PM
    • #4

    SkyeFire, yeah i have a big doubt about the mechanical slippage. have to check it. And actually there is no matering error , it is shifting the zero position somewhere else.

    panic mode but how to find the right gear ratio/ transmission ratio for linear drive system.

    BTW i have not used the gear box too. it is straight connected to the shaft.

  • hermann
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    • March 4, 2022 at 4:46 PM
    • #5
    Quote from capital9

    .. but how to find the right gear ratio/ transmission ratio for linear drive system.

    Simple basic math. When you can move the axis, move it for nominal, let's say 1000mm, measure how far the axis really moved, change the ratio by the division of the two values.

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Thread Tag Cloud

  • abb
  • Backup
  • calibration
  • Communication
  • CRX
  • DCS
  • dx100
  • dx200
  • error
  • Ethernet
  • Ethernet IP
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