436 Z axis: soft thermal (ovc) alarm?

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Thread: 436 Z axis: soft thermal (ovc) alarm?

  1. #1

    Default 436 Z axis: soft thermal (ovc) alarm?

    Hello? Guy,

    Is there anyone could help me on this problem? I have Fanuc Series 21i-M. It was running great, but all the sudden it broke my tool and gave me this alarm.
    I checked it on the manual and maitanence, but no luck. However, I got some info from the net, but not sure... Is there anyone had the same problem and solved it?

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    Member hutch07's Avatar
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    Default Re: 436 Z axis: soft thermal (ovc) alarm?



  3. #3
    Member hutch07's Avatar
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    Default Re: 436 Z axis: soft thermal (ovc) alarm?

    If your alarm goes away briefly when it is powered off then back on it may be the brake for the servo motor. If the alarm clears, jog it slow and see if it actually moves if there is a ton of following error. You can take the motor off and try to rotate/jog it in manual mode - remember to support the axis if it is vertical . If it stays on full time it may be the temperature sensor. You may be able to find the pin-out for the motor cable and jumper the sensor.

    - - - Updated - - -

    http://www.repairzone.com/servo-motor-repair/fanuc-servo-motor-repair

    These folks have helped me in the past also.



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436 Z axis: soft thermal (ovc) alarm?

436 Z axis: soft thermal (ovc) alarm?