I have found several threads on this issue, but they don't seem to hit exactly on my issue. I have a Quattro 48/5000 (US 120V version). I have the unit set up for "Self-Consumption" using ESS. I want to use solar power only to power loads and charge the batteries. I do not want to use grid power at all until the solar can't keep up. I have had the "Grid Setpoint" set to "0" zero under ESS in the Console as I thought this would keep grid use off until the batteries hit the 50V set point as set in the ESS Assistant. It did not work.
For 7 weeks now, solar was holding up, and now we have had 5 straight days of total overcast and solar just can't keep up. I want to have grid power charge batteries when the voltage hits 50V, turn off grid power and go back to solar when fully charged. I was told that it was no problem to configure it to do this before purchasing. I hope it really can do this, or else I bought the wrong inverter.
My system is set up as an off grid configuration, and I am not allowed to feedback into the grid. I have grid feedback shut off. I had the grid setpoint set to zero as it was always pulling approxiamately the set value from the grid. I don't want to use any power from the grid unless the batteries get too low.
I have:
Quattro 48/5000/70 120v US version
Two 48V 100Ah LiFePO4 batteries
Six 320W panel array
VE 150/70 Blue Solar SCC
Cerbo GX
MK3 adapter
GX Touch 70
50A grid line in from main box
AC out to Sub panel with 4 20A breakers
Anyone please?