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LUNA2000-(7, 14, 21)-S1
User Manual
Alarm
Alarm Name
ID
3011
Battery
expansion
module
undervoltage
3012
Abnormal
battery power
control module
parallel
communication
Issue 01 (2024-03-27)
Severity
Possible Cause
Warning
1. The voltage of a battery
expansion module is low.
2. The input voltage of a
battery expansion module
is low.
Major
1. The battery power
control modules of the
parallel system fail to
communicate with each
other.
Copyright © Huawei Digital Power Technologies Co., Ltd.
7 ESS Maintenance
Suggestion
1. If the sunlight is
sufficient or AC reverse
charging is allowed, the
[Battery-1/2 battery
expansion module-1/2/3]
battery expansion modules
can be charged when the
inverter is running.
1. Issue a hibernation
command on the app, turn
off the inverter AC output
switch, inverter DC input
switch, and battery DC
switch, and wait for 5
minutes.
2. Check that the
communications cable is
correctly connected
between the power control
modules in [Battery-1/2] of
the parallel system.
3. After checking that the
cables are correctly
connected, turn on the
battery DC switch, inverter
AC output switch, and
inverter DC input switch in
sequence.
4. If the alarm persists,
contact the vendor or
technical support.
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