LUNA2000-200KWH-2H1 Smart String ESS
User Manual
Copyright © Huawei Technologies Co., Ltd.
switch of the PSU.
b. Issue a hibernation command to all
ESRs, and turn off the switch on the
battery side, the switch on the bus side,
and the AC input power switch of the
PSU. Then wait for 5 minutes.
c. Turn on the AC input power switch of
the PSU, the switch on the battery side,
and the switch on the bus side in
sequence, and issue a running command.
d. If the alarm persists, contact your
dealer or technical support.
Cause ID = 1
The replacement ESM is
incompatible with the
system.
1. The model of [ESR-CabinetNo
ESM-SlotNo] is incompatible with the
system. Replace it with an ESM of the
original model.
2. If the alarm persists, contact your
dealer or technical support.
Table 6-4 BMU common alarms and troubleshooting measures
Battery
Pack
Monitoring
Board
Abnormal
Cause ID = 1–20
A major fault has occurred
on the internal circuit of
the battery pack
monitoring device.
1. The 3027-1 alarm (cell voltage
sampling fault) does not affect the
running of other battery packs.
2. Determine the positions of the input
and output circuit breakers of the
ESC corresponding to
[ESR-CabinetNo ESM-SlotNo].
3. Issue a shutdown command, turn off
the switch on the battery side, the
switch on the bus side, and the AC
power supply switch, and wait for 5
minutes.
4. Turn on the AC power supply switch,
the switch on the battery side, and the
switch on the bus side in sequence,
and issue a startup command.
5. If the alarm persists, contact your
dealer or technical support.
Cause ID = 21
The BMU is incompatible
with the battery pack.
The BMU is incompatible. Contact your
technical support to deliver a
replacement of the original model.
1. Determine the positions of the input
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