Huawei LUNA2000-2.0MWH Series User Manual page 218

LUNA2000-2.0MWH Series Smart String ESS
User Manual
Table 10-4 BMU common alarms and troubleshooting measures
Alarm Alarm
ID Name
3027 Battery
Pack
Monitorin
g Board
Abnormal
3028 Battery
Pack
Abnormal
Issue 08 (2022-11-15)
Severity Possible Cause
Major Cause ID = 1–20
A major fault has
occurred on the internal
circuit of the battery
pack monitoring device.
Major Cause ID = 21
The BMU is
incompatible with the
battery pack.
Major Cause ID = 1–8
A major fault has
occurred on the battery
pack.
Copyright © Huawei Technologies Co., Ltd.
10 Alarm Reference
Suggestion
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.
The BMU is incompatible. Contact
your technical support to deliver a
replacement of the original model.
1. Determine the positions of the
input and output circuit breakers
of the ESC corresponding to
[ESR-CabinetNo ESM-SlotNo].
2. Issue a shutdown command,
turn off the switch on the
battery side, the switch on the
bus side, and the AC power
supply switch.
3. Contact your dealer or technical
support to replace the battery
pack.
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