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Home Parker Community Technologies Electromechanical Group Electromechanical Support Forum how to solve if MMI display Drive AC890 error STAC ?
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  • State Verified Answer
  • Date Muhammad faisal
    Muhammad faisal
  • Date 6 Aug 2018 9:49 AM
  • Replies 3 replies
  • Answers 1 answer
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how to solve if MMI display Drive AC890 error STAC ?

Muhammad faisal
By  Muhammad faisal over 1 year ago

how to solve if MMI display Drive AC890 error STAC ?

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  • Sam Van Den Avond
    Sam Van Den Avond, Employee over 1 year ago +1 verified
    Good Morning Faisal, A STAC error appears on the keypad when the drive is unable to distinguish between an overcurrent/desat or overvoltage trip. When does this alarm appear on the keypad? Is it when...
  • Sam Van Den Avond
    +1 Sam Van Den Avond, Employee over 1 year ago

    Good Morning Faisal,

    A STAC error appears on the keypad when the drive is unable to distinguish between an overcurrent/desat or overvoltage trip. When does this alarm appear on the keypad? Is it when the drive turns on, a particular point in your process, or is it when a run/jog command is given to the motor? 

    Some initial checks to match would be the wiring, make sure that everything securely connected? Another thing I would check is the motor/motor leads, make sure that there are no shorts in the motor (you can check the resistance between each phase, as well as each phase and ground)? If the motor has feedback (Encoder, Resolver) I would check to make sure that the wiring is secure and well as it is counting properly and in the right direction.

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  • Muhammad faisal
    0 Muhammad faisal over 1 year ago in reply to Sam Van Den Avond

    Alarm STAC appear on the keypad that the machine normally running.

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  • Muhammad faisal
    0 Muhammad faisal over 1 year ago in reply to Sam Van Den Avond

    Dear Mr. SAM,

    I am already send Data file Picture via email to your Email company at emn_support@parker.com.

    Please check. I waiting your answer. Thanks

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