Huawei Smart String ESS LUNA2000-200KWH-2H1 - Working Principle; Circuit Diagram; Device Status

LUNA2000-200KWH-2H1 Smart String ESS
User Manual
2 Product Description
Issue Draft (2022-10-30)
Copyright © Huawei Technologies Co., Ltd.
47
Silk
Screen
Color
Status
Description
ALM
Red
Steady on
Power supply to the board is normal but no
program is running.
Blinking at 0.5 Hz
An alarm is generated.
Off
No alarm is generated.
2.5 Working Principle
2.5.1 Circuit Diagram
Figure 2-30 Circuit diagram
2.5.2 Device Status
The ESS has six states: running, hibernating, self-checking, faulty, offline, and loading.
Table 2-24 Device status description
Status
Description
Running
The ESS is charging from an external DC source or discharging for
external devices.
Hibernating
The ESS stops charging and discharging and shuts down the rack
controllers.

In the running state, if the ESS receives a hibernation command, it