Error in System Software

What does 8.0.00.18 mean?

An internal error has occurred within the inverter's system software. This could be caused by temporary disruptions, corrupted firmware, or a fault in the hardware components supporting the software. This critical error affects the inverter's operational integrity.

• Transient internal memory corruption caused by a power fluctuation (e.g., brownout, micro-interruption) or strong EMI affecting the inverter's CPU.
• Corrupted firmware image due to an incomplete or failed firmware update, or memory wear on the internal flash storage.
• Hardware malfunction on the main control board (e.g., RAM, CPU, internal communication chip) leading to execution errors within the operating system.
• Severe parameter corruption or an invalid combination of internal parameter settings leading to an unhandled exception in the inverter's control software.

Click steps to track your progress.

1. 1

   Perform a power cycle of the inverter by removing all power (main and control) for at least 60 seconds to clear transient memory issues.

2. 2

   Attempt a factory reset of the inverter (e.g., by setting P0-99 = 1) and then reload a known good parameter set to rule out parameter corruption.

3. 3

   Update or reinstall the inverter's firmware using the manufacturer's provided utility and latest firmware version (e.g., via USB on X20) to address potential software corruption.

4. 4

   Monitor the supply voltage (L1, L2, L3) for stability and quality using a power analyzer to rule out external power disturbances as a cause.

5. 5

   If the fault persists after firmware reinstallation and factory reset, consider replacing the main control board or the entire inverter unit, as it may indicate a permanent hardware fault.