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ALARM 80

Drive initialised to default value

Danfoss · VLT HVAC Basic FC 101

¿Qué significa ALARM 80 ?

The frequency converter's parameter settings have been reset to their factory default values, typically following a manual reset operation. This means all previous application-specific configurations are lost, and the drive will operate with generic settings.

Causas comunes

  • User intentionally initiated a manual factory reset (e.g., via parameter P14-22 or specific button sequence).
  • Control card replaced or firmware updated, which often defaults parameters as part of the process.
  • Internal non-volatile memory error (e.g., EEPROM corruption), causing parameter loss and subsequent default loading.
  • Extended power loss to the control card's backup power, causing volatile memory loss (less common with modern drives).
  • Error during parameter upload/download via PC software, leading to a corrupt or incomplete parameter set.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Confirm if a factory reset (e.g., P14-22 = 1 or 2) was intentionally performed or accidentally triggered.

  2. 2

    Reload the last known good parameter set from a backup (e.g., using LCP copy/paste function or PC software tool).

  3. 3

    Manually re-enter all necessary application-specific parameters, paying close attention to motor data (P1-20 to P1-25).

  4. 4

    After re-entering parameters, perform an Automatic Motor Adaptation (AMA) to optimize motor control.

  5. 5

    Check the control card's error log (if available) for any underlying internal faults that might have triggered the reset.

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Datos técnicos verificados. Última actualización: March 2026

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Fuente: Danfoss VLT HVAC Basic FC 101