Fronius GEN24 not showing after Cerbo firmware update - DC over-voltage alarm! Ensure firmware is updated on all fronius inverters!

Q&A and troubleshooting
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Most of the time issues with Fronius is because they have not been reconfigured correctly after a firmware change on the Fronius end.

  1. Check to make sure you’re running the latest firmware on the Fronius;

  2. Please confirm the SunSpec support is correctly configured on the PV-inverter.

  • Log into the Fronius web interface.

  • Go to the Modbus tab

  • Set Data export via Modbus to tcp.

  • set Sunspec Model Type to int + SF

  1. Please take some screenshots and report back. If you’re still having issues with it, please post the VRM URL and I’ll have a look.
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