• Code: 997
• Description: Application function selection error
  The application selected by the operation panel key works abnormally (No response, abnormal ending).
• Causes: Defective software
• Remedy: • Check the devices (e.g., RAM, DIMM and board) necessary for the application programs. • Check that downloaded application programs are correctly configured.

• Code: 998
• Description: Application start error
  No applications start within a specified time after the power is turned on. If all applications do not operate normally due to a problem even after launching the applications.
• Causes: Defective software. The optional RAM, DIMM, and boards required for the applications are not installed properly.
• Remedy: • Turn the main power switch off and on. • Check if the RAM-DIMM and ROM-DIMM are correctly connected. • Reinstall the controller system firmware. • Replace the controller board