It is very likely due to a communication issue between the Battery BMS and the Solar inverter. This post may help you solve this common problem.. Quick Solution: You can try to disconnect PINs 1-6, leaving only the pins 7 and 8.
The data signal is connected to the low-voltage busbar through the power line on the AC side of the inverter, the signal is analyzed by the inverter supporting the data collector, and the communication is finally connected to the local power station management system or the cloud platform through the LAN or the Internet 2. Application scenario 4.
The characteristics of different communication methods of inverters are obvious, and the application scenarios are different. In order to better weave the underlying network of energy digitization and intelligent development, choose the most appropriate communication method according to local conditions.
Then try reconnecting the inverter and battery to check if it is working. If it is still not working, here are more suggestions: Try restarting the device. Power off the unit, wait a few seconds, then power it back on. Ensure that the connections between the inverter and the battery are secure and correctly wired.
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