Parameter Setting Error

What does OPR mean?

This fault indicates that one or more parameters in the inverter have been set to an invalid value or are inconsistent with other critical settings, preventing proper operation. This can occur due to incorrect manual input, a corrupted parameter download, or an incompatible configuration for the selected control mode. It prevents the inverter from starting or operating safely.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Reload parameters from a backup if available, or perform a complete parameter initialization and re-enter essential settings.

2. 4

   Verify that the control mode (e.g., V/f, Vector) is correctly selected for the application.

3. 5

   If using a digital operator or communication, ensure it is functioning correctly and not sending corrupted data.