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  1. #1
    Join Date
    Jul 2015
    Posts
    2

    Question Alarm 369 Fanuc Servo Amp

    Our factory experienced a power surge last week as a result from lightning striking a transformer.
    It caused our mori seiki sl-250 to go down by shorting the original servo amp out.

    I replaced the servo amp, but now, I'm getting Alarm 369 data trans. error for both the X-axis and the T-axis

    I find it unlikely that the surge fried the servo amp and both of the encoders on those motors, but stranger things have happened.

    6096-h208 amp and 0143-b075 motors

    Looked for possible shorts in wire between servo amp and encoders, but found none.
    Connectors looked fine on encoders

  2. #2
    Join Date
    Jul 2015
    Posts
    2

    Re: Alarm 369 Fanuc Servo Amp

    Tried hooking up old servo amp, got alarms;
    438 for both axis inv. abnormal current
    466 both axis motor/amp combination

  3. #3
    Join Date
    Aug 2008
    Posts
    1

    Re: Alarm 369 Fanuc Servo Amp

    I have this same problem, What fixed it?

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