Hawk 150, acramatic, servo motor rapids like mad on startup


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Thread: Hawk 150, acramatic, servo motor rapids like mad on startup

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    Default Hawk 150, acramatic, servo motor rapids like mad on startup

    Hi all.
    I have cinncinati Hawk 150 with acramatic a2100, vickers drives.
    On startup it passes all diagnostics, then waits for the green button to power up hydraulics and servos.
    Once I press it, hydraulic pump start, vickers drivers for x and z start, 3 Led's turn green.


    X axis servo motor rapids down excessively, causing machine to shake, and errors X axis servo fail, X axis servo error.
    Can anyone suggest me where to start?
    All the best
    Tom Spiszak



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    Default Re: Hawk 150, acramatic, servo motor rapids like mad on startup

    Has this machine been running and no changes have been made??? Do you get an open loop error?? Have any wires or motors been changed?? Give us more history.

    MIKE CNC Machine Services INC | Cincinnati Milacron MachinesCNC Machine Services



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    I purchased it not long ago. We had a problem with booting windows nt. A Real time motherboard got detached from main board and was throwing errors upon diagnostics. That's sorted now. No other errors apart from that: errors 44-45 X axis servo fail, 44-44 X axis servo error. I took some pictures of cables and servo drive jumper settings.
    https://www.dropbox.com/sh/3mprwmcnq...3nZGqaWia?dl=0
    Any Suggestions?
    All the best
    Tom



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    Default

    Quote Originally Posted by tspiszak View Post
    Hi all.
    I have cinncinati Hawk 150 with acramatic a2100, vickers drives.
    On startup it passes all diagnostics, then waits for the green button to power up hydraulics and servos.
    Once I press it, hydraulic pump start, vickers drivers for x and z start, 3 Led's turn green.


    X axis servo motor rapids down excessively, causing machine to shake, and errors X axis servo fail, X axis servo error.
    Can anyone suggest me where to start?
    All the best
    Tom Spiszak
    Tom i have the same machine and had some weird issues over the years but not this one.Do you get a chance to home the machine or does this happen when just pushing the green button to activa the e the system.I would check to see if your limit switch are stuck or damaged because these axises can be moved before the homing process has been completed and if they have been over run in the past they may have been damaged.The only otherthing i can think of is may be a relay or a switch thats stuck on the x axis curcuit.I hope this gives you a start to get it sorted because when running there an ausome little machine.cheers greg.



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    Default Re: Hawk 150, acramatic, servo motor rapids like mad on startup

    Hi.


    Limit switches are good.*
    Can I swap servo drives from z to x just to eliminate x servo drive error? They are slightly different , on x is bds4 206 23 412w32 and on z *bds4 210 23 414w25.
    "may be a relay or a switch thats stuck on the x axis curcuit" -*don't know where to look for one.
    If I had optical scale on x, would it cause it to rapid?
    Thank you
    Tom

    Sent from my D5803 using Tapatalk



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    Default Re: Hawk 150, acramatic, servo motor rapids like mad on startup

    That's not a rapid at all. That's the drive thinking it's ready, and the x axis brake releasing.

    Sent from my SM-T813 using Tapatalk



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    Default Re: Hawk 150, acramatic, servo motor rapids like mad on startup

    Hi. I dont think brake release would cause machine to shake, also there's about 400V on servo drive output.

    Sent from my D5803 using Tapatalk



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    Default Re: Hawk 150, acramatic, servo motor rapids like mad on startup

    If you have proper voltage, not that just having voltage is always correct, the motor windings may be failed. It certainly looks like typical axis drop from the amp or motor not holding torque.

    Sent from my SM-T813 using Tapatalk



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    Default Re: Hawk 150, acramatic, servo motor rapids like mad on startup

    Would you advise to get another servo drive?

    Sent from my D5803 using Tapatalk



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    Default Re: Hawk 150, acramatic, servo motor rapids like mad on startup

    Hi. I swapped the servo drive from z to x and it's still doing the same thing. Measured the resistance on the motor, then thru cables, it shows around 5ohm between phases. Same as z axis.
    What am I missing here.

    Sent from my D5803 using Tapatalk



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    Default Re: Hawk 150, acramatic, servo motor rapids like mad on startup

    The motor wires are phase sensitive (6 poles), make sure the 3 wires at the drive are in the correct position.

    MIKE CNC Machine Services INC | Cincinnati Milacron MachinesCNC Machine Services



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    Default Re: Hawk 150, acramatic, servo motor rapids like mad on startup

    Hi. Thank you for your reply. There's Ma Mb and Mc on the drive, cable has writing on 1,2,3. So a1, bo,c3.
    I swapped the drives and it's still happening. So the problem has to be between drive and motor itself.
    I disconnected motor power (3 fases) and it did an axis drop but slower, like brake release and then alarmed.



    Sent from my D5803 using Tapatalk



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Hawk 150,  acramatic, servo motor rapids like mad on startup
Hawk 150,  acramatic, servo motor rapids like mad on startup