Danfoss · VLT AutomationDrive FC 301/302
A general internal fault has occurred within a specific range of internal error codes. This indicates an unspecified internal hardware or software malfunction that requires specialized attention.
Click steps to track your progress.
1. Record the exact internal sub-code (e.g., 1025) that accompanies the main fault, as this is crucial for advanced diagnostics.
2. Execute a full power cycle of the drive by removing main input power for at least 60 seconds before re-energizing.
3. Attempt to clear the fault via the drive's LCP (e.g., using the reset button or P16-90 menu).
4. Update the drive's main firmware to the latest available version if a known bug fix for this fault range exists.
5. Check all internal cable connections within the drive (e.g., between control board and power board) for secure seating and absence of damage.