siedrosat

@Tarek YagOk I will try this configuration in the next few days. But I'm not convinced. I only have a battery pack made up of 2 batteries, a master and a slave. With your setup it's as if there were 2 groups with a master drum each. The current configuration is attached. The L0 cable goes into the BMS port of the inverter.

@Tarek Yag @Coulomb Hi everyone, I updated the mcu to version 39.26. Currently the inverter has DSP 70.00 and MCU 39.26. Error 70 appears the same with the "PYL" setting, shedding the load. So I think there is some problem in managing SOC PYL. The 2 batteries have 3 LEDs lit. At the moment to make everything work I am using the "USE" setting with : parameter 12 at 23.4V parameter 13 at 25V parameter 25 and 26 at 28.4v parameter 29 at 24V and parameter 30 disabled. I hope the problem will be solved with the next updates.

@Il mio amico Tarek Yag Tomorrow I will try to update the MCU to version 39.26

@Tarek YagThanks for the reply. But I'm sure that my inverter is original voltronic, because the seller is official voltronic. I attach a photo of the label. Currently the battery configuration is as follows: 2 UP2500 batteries in parallel and the dip switches are: Master Battery on 1st ON (Baud 9600 and 2-3-4th off, Slave battery on 1st ON (Baud 9600 and 2-3-4 on off, as per the Pylontech manual. Firmware now is U1 70.00 ad U2 39.17 I've seen on other forums that many have this type of problem.

Firmware MCU39.17 Remote Panel_Reflash_MCU(39.17).rar

Good afternoon everyone, I have a Model AVM4T4K5K-24 inverter, connected to 2 PYLONTECH UP2500 batteries, the "A70" error often appears despite the batteries being at 75%. The firmware version is: U16003 U23905 U30000. The parameters 12 is at 10% 13 is at 20% 29 is set to 10% The inverter is not connected to the public electricity grid. I had the manufacturer send me a new firmware, 60.87 and MC 39.17 Do you know if there is a newer version? Furthermore, by changing parameter 5 from PYl to USE and setting the right voltages, the inverter works correctly. The batteries are all connected correctly with the original cables. The Dip Switches are 1 ON 2-3-4 OFF on both batteries. Do you know if there is a newer version? I attach received firmware. VM TWIN_DSP_6087.7z