Inverter overloaded

What does WARNING/ALARM 9 mean?

The frequency converter is experiencing an overload, with the internal thermal counter indicating that current levels are exceeding 100% for an extended duration. This activates electronic thermal protection, issuing a warning at 90% and an alarm trip at 100% to prevent damage. The drive cannot be reset until the counter falls below 90%.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Inspect for any mechanical binding, seized bearings, or other issues in the driven equipment causing excessive load.

2. 4

   Allow the frequency converter to cool down; it cannot be reset until the internal thermal counter drops below 90%.