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IndustryArena Forum > Machine Controllers Software and Solutions > Fanuc > Is there anyone with Cnc fanuc A06B-6111-H006#H550 driver number 20 alarm solution?
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  1. #1

    Is there anyone with Cnc fanuc A06B-6111-H006#H550 driver number 20 alarm solution?

    When I turn on my Fanuc A06B-6111-H006#H550 driver, alarm number 20 appears on the LED screen. Alarm description V phase current overcurrent error. Can anyone help me please, in which part of the card do I need to replace this part? I need help.

    Thanks in advance

    I'm new to English, sorry

  2. #2
    Join Date
    Dec 2009
    Posts
    953

    Re: Is there anyone with Cnc fanuc A06B-6111-H006#H550 driver number 20 alarm solutio

    The alarm 19 is for the U phase and the alarm 20 is for the V phase.
    You need to change the power board A16B-2203-0651 of the drive and the IGBT (transistor module) A50L-0001-0384 and you will be fine

  3. #3
    thank you mr zaveteandu

  4. #4
    Join Date
    Dec 2023
    Posts
    4

    Re: Is there anyone with Cnc fanuc A06B-6111-H006#H550 driver number 20 alarm solutio

    Quote Originally Posted by zavateandu View Post
    The alarm 19 is for the U phase and the alarm 20 is for the V phase.
    You need to change the power board A16B-2203-0651 of the drive and the IGBT (transistor module) A50L-0001-0384 and you will be fine
    I believe it will resume normal operation.
    burrito craft

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