Indicator Color Status Description Suggestion
The PSU is
hibernating.
Normal.
Blinking at
0.5 Hz
The
communicatio
n between
the PSU and
the
monitoring
module is
interrupted.
Replace the
PSU or
monitoring
module.
Fault
indicator
Red O The PSU is
normal.
Normal.
Steady on The PSU locks
out due to
output
overvoltage
or it is not
properly
inserted.
Remove the
PSU and then
insert it 1
minute later.
The PSU has
no output due
to an internal
fault.
Replace the
PSU.
● The ESC-No ID is the same as that displayed on the app. The ID is 1 on the left and 2 on
the right. A maximum of two ESC-No IDs are supported.
● The ESR-CabinetNo ID is the same as that displayed on the app. The ID is 1 on the left
and 2 on the right. A maximum of two ESR-CabinetNo IDs are supported.
● ESM-SlotNo indicates the slot number of the battery pack.
LUNA2000-200KWH-2H1 Smart String ESS
Maintenance Manual 3 Alarm Reference
Issue 02 (2023-02-28) Copyright © Huawei Digital Power Technologies Co., Ltd. 43