Danfoss · VLT HVAC Drive FC 102
The software on the option card installed in slot A is not recognized or supported by the frequency converter's firmware. This indicates a fundamental incompatibility, preventing the option card from integrating correctly with the drive's control system.
Click steps to track your progress.
1. Record the exact model number and part number of the option card installed in slot A.
2. Verify the frequency converter's main firmware version via the LCP (parameter 15-00) or manufacturer software.
3. Refer to the manufacturer's compatibility matrix or documentation to confirm that the option card's software is officially supported by the drive's current firmware version.
4. If compatibility is confirmed, attempt to re-flash the option card's firmware with the latest officially supported version using manufacturer software.
5. If incompatibility is identified, replace the option card in slot A with a supported model, or update the main drive firmware if the option card is newer and requires it for compatibility.