Function Not Allowed By Inverter State

What does #22 mean?

The Destination Device (inverter) rejected a function or write command because its current operational state or configuration prohibits the requested action. This is a protective mechanism, preventing changes that could interfere with active operations like RUN, auto-tuning, or changes to locked parameters (e.g., during Undervoltage conditions).

• Attempted to modify a register that is configured as write-protected during the inverter's RUN state.
• Issued an 'Enter' command while the inverter was actively running.
• Attempted to write data to a register when the inverter was in a TRIP state (e.g., Undervoltage).
• A 'soft lock' function is enabled on the target register, preventing modification.
• Tried to change the function of an I/O terminal that is currently allocated for a critical, unchangeable role.
• Attempted to change the contact type of a terminal specifically allocated for the Reset (RS) function.
• Attempted to write data to a register while the inverter's auto-tuning function was actively running.
• Tried to write data to a password-locked register without first providing the correct password for access.

Click steps to track your progress.

1. 1

   Verify the inverter's current operating status (RUN, STOP, TRIP) before attempting to write to registers or change settings. If modification requires STOP, ensure the inverter is commanded to STOP.

2. 2

   Check if the soft lock function is enabled for the target register and disable it if necessary before attempting to write.

3. 3

   Enter the correct password for password-protected registers prior to attempting any write operations.

4. 4

   Confirm that auto-tuning is not active when attempting to write to related registers. Wait for auto-tuning to complete or disable it.

5. 5

   Review I/O terminal assignments. Do not attempt to reconfigure terminals that are fixed or allocated to critical functions like Reset (RS) during operation.