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phil baxter asked

3 Phase quattros with Fronius AC coupled inverter and DC coupled charge controller

Just finished a three phase quattro install DC and AC coupled. During commissioning only Phase 1 Quattro allowed me to upload PV Support Assistant. Other two Quattros didn't allow me to upload the PV Support Assistant. The help topic in Victron Connect was a little ambiguous but seemed to suggest it was only required on one unit. Anybody had a lot of experience on three phase set up? I recall last time I did a three phase I read that PV Support assistant was required on all three units.

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phil baxter answered ·

Update: I was concerned because the Fronius wasn't backing off but it just shut down on code 560 so all good. It appears that only L1 allows the PV Support Assistant to be fully loaded. When L2 and L3 are selected, you start the PV Support Assistant but it crashes out.

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