LUNA2000 shutting down when discharged

Hi, dear

Please kindly wait for a minute.

 the backup SOC. In grid-tied mode, the energy storage is not discharged when it reaches the backup SOC. When the grid is powered off, the energy storage system supplies power to loads in backup mode. The priority of Backup SOC is higher than that of Discharge Cut-off SOC. For example, if Discharge Cut-off SOC is set to 10% and Backup SOC is set to 20%, the battery will not be discharged when the battery discharge reaches 20%.

You can remotely check the backup SOC and cut-off SOC on FusionSolar 7.0.
Check whether alarm 2068-3 is generated on the inverter and whether the EN enable cable between the inverter and LUNA is disconnected.

Can you tell me where in FusionSolar I can check that remotely, because I don't see it? Thanks!

Hi, there is no such menu as "Set Parameters" when I open the battery trough the Device Management menu. You can see it on the screenshot I attached. I can only look at battery data, but cannot operate anything.

@Alexand3r your inverter has an active alarm - 2068 / ID 3 - Battery Abnormal, which means that the inverter and the DCDC EN line is abnormal.

You should ask your installer to come back and check the communication between inverter and battery's DCDC unit, on the L1 inverters is like the below diagram:

Also, the inverter should be upgraded to the latest firmware version (SPC112), your installer can do it remotely via FusionSolar management system.