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AMA interrupted by user

Danfoss · VLT HVAC Drive High Power

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The Automatic Motor Adaptation (AMA) routine was manually interrupted before completion. This means the drive did not fully characterize the motor, and subsequent operation may not be optimized.

Häufige Ursachen

  • A manual stop command was issued to the drive during the AMA routine (e.g., via digital input, control panel).
  • The drive's power supply was interrupted or cycled during the AMA process.
  • An emergency stop (E-stop) or safety interlock was activated while AMA was running.
  • An external control system (PLC/DCS) sent a premature stop signal to the drive.
  • Drive input signal (e.g., for run/stop) was inadvertently toggled during AMA.

Reparaturschritte & Checkliste

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

  1. 1

    1. Ensure no stop commands or emergency stop signals are active before initiating AMA (check DI status in monitoring menu).

  2. 2

    2. Verify stable and continuous power supply to the drive throughout the AMA process (monitor line voltage).

  3. 3

    3. Initiate AMA again and allow it to complete without any user intervention or external control actions.

  4. 4

    4. Check the configuration of digital inputs (e.g., P5-10 to P5-15) to ensure no unintended stop functions are active.

  5. 5

    5. If an external controller is used, review its logic to confirm it does not send stop commands prematurely during AMA.

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Verifizierte technische Daten. Zuletzt aktualisiert: March 2026

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Quelle: Danfoss VLT HVAC Drive High Power