MarioSH

Sorry, what does BMS control mean?

I will do the same test again today to see what happens. As for my settings, do you have any recommendations? Thank you.

Yes, the 3 inverters are connected in parallel and the batteries as well.

Yes the battery symbol is blinking. And I'm located in South America, the nominal voltage here is 120V, but for some reason my area is above that.

Hello, I'm new to the forums as well as to solar systems. Please help me help my installer! So I bought a solar system for my home, consisting of 3 Axpert Max 6.5KW Inverters, 3 UP5000 Pylontech batteries, and 6 Solar Panels. The system is supposed to work as a backup (UPS) for the entire house if grid fails. So everything is working, and yesterday I wanted to fo the first test to simulate what would happen if grid power went out. So I switched off the main breaker of the home, solar system kicks in instantly, and everything works fine. 5 Minutes later, whole house turns off, main Inverter is showing F08 on screen. It cleared itself after about 10 minutes, and I attempted the same test again, this time no errors. So what do you think this could be? And would it be battery related since I shut off the main breaker? Apart from that the error has never shown up, but that's the only time It's been working as a UPS. I've let the installer know and they're looking into it, however I figured I would try to gather some info here as well. Here's my settings as well as a picture of the main inverter display. If there's any suggestions please let me know! These are what I see on WatchPower, as I haven't messed around with the Inverter menu myself. Main CPU Firmware Version: 00069.06 Secondary CPU Firmware Version: 00012.21 Wi-Fi Module Firmware: 3.6.1.6 Output Voltage is set to 127 (My grid voltage is between 125-129) Output Source Priority: Utility - Solar - Bat Battery Type: Pylon Battery Cut-Off Voltage: 46.0V Bulk Charging Voltage: 53.2V Float Charging Voltage: 53.2V Max Charging Current: 10 Max Battery Discharge Current: Blank Max AC Charging Current: 20 Charging Source Priority: Solar + Utility Battery Equalization: Disabled Real Time Activate Battery Equalization: Cancel Back to Grid Voltage: 48 Back to Discharge Voltage: 50 If there's any additional information you'd like to see please let me know! Thank you!