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89

Software Handshake Error

Allen-Bradley · PowerFlex 700

Hva betyr 89 ?

A microprocessor handshake error has occurred. This indicates an internal communication or processing issue within the drive's control software/hardware, preventing proper execution.

Vanlige årsaker

  • Similar to ref 8, indicates a problem with software module communication.
  • Lost handshake packets between different software components.
  • Incorrect sequence of software commands.
  • Buffer overflow in communication stack.

Reparasjonssteg & Sjekkliste

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  1. 1

    Replace the Main Control Board.

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Verifisert teknisk data. Sist oppdatert: March 2026

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