Fronius · Solar Inverters
The Fronius Solar Inverter's fieldbus data buffer has overflowed, meaning it received more data than it could process. This is indicated by LEDs 1, 2, 4, 8, and the State LED all lighting up steady red, with LEDs 2, 4, and 8 specifically illuminated for the binary code.
Click steps to track your progress.
Observe the inverter for a few minutes to see if the error clears automatically.
Review any devices connected to the fieldbus to ensure they are not sending excessive data.
If the error persists, contact a Fronius-trained service engineer to check fieldbus data rates and inverter processing capabilities.