Motor-derived parameters not transferred correctly to DSP
Danfoss · VLT AutomationDrive FC 301/302
¿Qué significa 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.
Causas comunes
- 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.
Pasos de reparación & Lista de verificación
Haga clic en los pasos para seguir su progreso.
- 1
Perform a full motor autotune (Automatic Motor Adaptation - AMA) via P1-20 (Motor adaptation) to re-identify motor parameters.
- 2
Verify the integrity of the motor's nameplate data entered in parameters P1-20 to P1-26.
- 3
Inspect the connection between the control board and any motor option cards for secure seating.
- 4
Attempt to manually input critical motor parameters (e.g., P1-20 Motor power, P1-22 Motor voltage) and save them.
- 5
Update the drive firmware to the latest available version to address potential software bugs related to parameter transfer.