Grid failure (PV Point)

What does 905 mean?

The Fronius Primo GEN24 208-240 inverter has detected a grid failure specific to the PV Point backup power function. This implies that while the main grid might be active, the specific conditions required for the PV Point to operate are not met, or there's a problem with the transfer to PV Point.

• Grid failure (PV Point).
• Grid frequency or voltage outside limits for PV Point.
• Incorrect PV Point wiring.

Click steps to track your progress.

1. 1

   Verify the AC grid voltage and frequency at the Fronius Primo GEN24 208-240 inverter's connection point; ensure it is stable and within normal operating parameters.

2. 2

   Inspect the specific wiring for the PV Point functionality, including any contactors or relays, for correct connections and operation.

3. 3

   Confirm that the inverter's settings for PV Point operation are correctly configured and enabled.

4. 4

   Check the event log for any other grid-related fault codes (e.g., 102-105) that might indicate a broader grid instability issue preventing PV Point activation.

5. 5

   If all external conditions and wiring are verified, perform a full power cycle of the inverter to reset the PV Point control logic.