DriveProgramming Error (Program Error)

What does E43. mean?

This error indicates a general program error within the DriveProgramming function. It means the inverter's internal sequence program has encountered an issue that prevents normal execution, possibly due to incorrect logic, syntax errors, or an unexpected state during program operation. This requires inspection of the program logic.

• Syntax error or logical error within the user-defined DriveProgramming sequence (e.g., incorrect jump, undefined label, data type mismatch).
• Exceeding resource limits (e.g., memory, instruction count, variable capacity) for the DriveProgramming function within the inverter.
• Corruption of the DriveProgramming user program due to power fluctuations, internal memory issues, or an interrupted download.
• Firmware bug or incompatibility related to the DriveProgramming feature, especially after a firmware update or during initial setup.

Click steps to track your progress.

1. 1

   Power cycle the inverter. If the fault clears and then reoccurs after the DriveProgramming sequence attempts to execute, the program logic is likely at fault.

2. 2

   Upload the DriveProgramming sequence from the inverter to the programming software and review the code for any logical errors, syntax issues, or infinite loops.

3. 3

   Re-download a known good, previously validated DriveProgramming sequence to the inverter to see if the fault clears, indicating the previous program was corrupted.

4. 4

   Delete the current DriveProgramming sequence from the inverter's memory and operate the inverter without a custom program to confirm basic drive functionality.

5. 5

   If persistent, perform a factory reset of the inverter (e.g., A1-03 = 01), then carefully re-enter only essential parameters and re-download the DriveProgramming program.