HID range error

What does 421 mean?

An error has occurred related to the Human Interface Device (HID) range. This typically points to an internal communication or identification issue within the inverter's control system.

• Internal communication error within the control system
• Fault related to the device's human interface components

Click steps to track your progress.

1. 1

   If this status code is displayed all the time, notify a Fronius-trained service engineer.