Huawei LUNA2000-2.0MWH-1H0 - Page 163

Alar
m ID
Alarm
Name
Severit
y
Possible Causes Troubleshooting Suggestions
3046 Battery
module
low
temperatu
re
Major Reason ID = 1–2
The ambient
temperature is too low
and charging and
discharging protection is
triggered.
1. Determine the position of the input
and output circuit breakers
associated with the ESC
corresponding to [ESR-CabinetNo
ESM-SlotNo].
2. Send a shutdown command, turn
o
the battery switch, bus switch, and
AC power supply switch, and wait for
5 minutes.
3. Check whether the ambient
temperature of the installation
position exceeds the lower limit. If
the ambient temperature is too low,
improve the installation environment
or check whether the air conditioner
is running properly.
4. Turn on the AC power supply switch,
battery switch, and bus switch in
sequence to deliver a startup
command.
5. If the alarm persists, contact your
dealer or technical support.
3047
Battery
module
undervolt
age
Major Reason ID = 1–2
The battery module
voltage or
electrochemical cell
voltage is too low.
1. If charging is allowed, [Energy
storage unit-CabinetNo battery
expansion module-SlotNo] can be
charged with a current greater than
35 A when the inverter is running.
2. If the alarm persists after the battery
is charged for 1 hour, contact your
dealer or Huawei technical support.
Cause ID = 3
The battery module
voltage or
electrochemical cell
voltage is too low.
1. Determine the position of the input
and output circuit breakers
associated with the ESC
corresponding to [ESR-CabinetNo
ESM-SlotNo].
2. Send a shutdown command, turn
o
the battery switch, bus switch, and
AC power supply switch, and wait for
5 minutes.
3. Turn on the AC power supply switch,
battery switch, and bus switch in
sequence to deliver a startup
command.
4. If the alarm persists, contact your
dealer or technical support.
LUNA2000-2.0MWH-1H0, 2H0 Smart String ESS
User Manual 10 Alarm Reference
Issue 02 (2021-11-15) Copyright © Huawei Technologies Co., Ltd. 155