LUNA2000-200KWH-2H1 Smart String ESS
User Manual
Copyright © Huawei Technologies Co., Ltd.
3. 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.
4. If the alarm persists, contact your
dealer or technical support.
Overtemper
ature on
Optimizatio
n Unit of
Battery
Pack
Cause ID = 1–3
1. The installation
position of the battery
pack is not well
ventilated.
2. The ambient
temperature is too high.
3. The battery power
control module is
abnormal.
4. The optimization unit is
abnormal.
1. Determine the position of
[ESR-CabinetNo ESM-SlotNo] and
the positions of the input and output
circuit breakers of the corresponding
ESC.
2. Check the ventilation and whether
the ambient temperature of the
battery exceeds the upper threshold.
3. If the ventilation is poor or the
ambient temperature exceeds the
upper threshold, improve the
ventilation and heat dissipation.
4. If the ventilation and ambient
temperature meet requirements,
contact your dealer or technical
support.
Overtemper
ature on
Optimizatio
n Unit
Terminal of
Battery
Pack
Cause ID = 1
The terminal is not
securely connected.
1. Determine the position of
[ESR-CabinetNo ESM-SlotNo] and
the positions of the corresponding
input and output circuit breakers.
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, and wait for 5
minutes.
3. Check the cable connections of the
battery pack and optimization unit by
referring to the product maintenance
manual.
4. Check that the power cable is
securely connected. 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.
Battery
Pack
Optimizatio
n Unit
Version
Mismatch
Cause ID = 1, 2
The update failed.
1. The versions of optimization units in
[ESR-CabinetNo ESM-SlotNo] do
not match. Please update.
2. If the update fails multiple times,
contact your dealer or technical
support.