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1793

Motor-derived parameters not transferred correctly to DSP

Danfoss · VLT AutomationDrive FC 301/302

Was bedeutet 1793 ?

Parameters calculated or derived for the motor were not successfully transferred to the digital signal processor. This can lead to incorrect motor control, poor performance, or instability.

Häufige Ursachen

  • Corruption of data during transmission from the main microcontroller to the DSP via an internal bus (e.g., SPI, I2C).
  • Intermittent communication link between the main control processor and the DSP.
  • Faulty memory block (SRAM or EEPROM) where motor identification parameters are stored.
  • Software bug in the motor parameter calculation or transfer routine.
  • Power transient affecting the integrity of the data transfer registers between modules.

Reparaturschritte & Checkliste

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

  1. 1

    Perform a full motor autotune (Automatic Motor Adaptation - AMA) via P1-20 (Motor adaptation) to re-identify motor parameters.

  2. 2

    Verify the integrity of the motor's nameplate data entered in parameters P1-20 to P1-26.

  3. 3

    Inspect the connection between the control board and any motor option cards for secure seating.

  4. 4

    Attempt to manually input critical motor parameters (e.g., P1-20 Motor power, P1-22 Motor voltage) and save them.

  5. 5

    Update the drive firmware to the latest available version to address potential software bugs related to parameter transfer.

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Verifizierte technische Daten. Zuletzt aktualisiert: March 2026

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Quelle: Danfoss VLT AutomationDrive FC 301/302