If there is zero feed in Active and "Individual phase" in ESS, the fronius is still throttling to sum not to the lowest phase that mean there is overshoot in some phase. That mean delivery to the grid. What is forbiden in that setting.
Edit: Setting is made based on manual ESS 4.13 AC-coupled PV - Zero and limited feed-in with Fronius AC PV
Edit: 6.11.
Only happen when battery is full or near full.
If there is zero feed in Active and "Individual phase" in ESS, the fronius is still throttling to sum not to the lowest phase that mean there is overshoot in some phase. That mean delivery to the grid. What is forbiden in that setting.
Edit: Setting is made based on manual ESS 4.13 AC-coupled PV - Zero and limited feed-in with Fronius AC PV
Edit: 6.11. Only happen when battery is full or near full.