Edu

Thank you for your answers. Of course I regret not having asked for advice before updating the FW. But as a rookie i'm learnong it the hard way ! 🙄

Thank you for the advice. 😀

My installation is three growatt inverters parralel mounted with 6 pylontehc US2000C pylontech batteries. After a while I managed to have BMS communicate with the inverters as it should. It ran well for 10 days then no longer. I could not find the issue but noticed different firmwares on the inverters and decided to update them. Two of them went well. The third did accept one but not the second update. 20 attempts both with laptops under OS windows 10 or 7 did not do the job. Worse, it no longer works at all, is not detected by the other inverters and will not detect the solar production. IHere's the picture of what it indicates. If anyone has a clue as to what to do, thank you. Edu

Hi, I just finished installing 3 growatt spf5000ES inverters in parallel configuration and one series of 6 US2000 pylontech batteries. BMS was not recongnized (Li flashing on the inverters' screen), nor were protocol L52 or L02-04 accepted. All alarm leds began flashing whenever I tried, and when solar loading on L00 protocol, the batteries signaled overloading despite my trying to prevent it via the inverters. I had an RJ45 cable between the inverters and the main battery that was purchased per se for the pylontechs. Just replaced the RJ45 apparently cross connected by a straight connection cable and all went well. CAN on batteries, 9600 baud transmission BMS on inverter Protocol L52 Li stopped flashing and voltages were replaced by percentages in programming. I figured it out thanks to all your posted experiences. THANKS Edu (from France)