● The ESC-No ID is the same as that displayed on the app. The ID is 1 on the left and 2 on
the right. A maximum of two ESC-No IDs are supported.
● The ESR-CabinetNo ID is the same as that displayed on the app. The ID is 1 on the left
and 2 on the right. A maximum of two ESR-CabinetNo IDs are supported.
● ESM-SlotNo indicates the slot number of the battery module.
Table 10-2 Common fault alarms of the intelligent battery cluster controller
Alar
m ID
Alarm
Name
Severit
y
Possible Causes Troubleshooting Suggestions
3014 Cluster
controller
exception
Major Cause ID = 1-34
A serious fault occurs in
the internal circuit of
the cluster controller.
1. Determine the position of the input
and output circuit breakers associated
with [ESC-No].
2. Send a shutdown command, turn o
the battery switch and then the bus
switch, and wait for 5 minutes.
3. Turn on the battery switch and then
the bus switch to deliver a startup
command.
4. If the alarm persists, contact your
dealer or technical support.
3015 Cluster
controller
battery
overvolta
ge
Major Cause ID = 1-3
Battery cables are
incorrectly connected,
or the battery voltage
exceeds the maximum
operating voltage of the
power module.
1. Check whether a battery module
overvoltage alarm is generated in the
cluster. If yes, clear the alarm by
referring to the handling suggestions.
2. Determine the position of the input
and output circuit breakers associated
with [ESC-No].
3. Send a shutdown command, turn
o
the battery switch and then the bus
switch, and wait for 5 minutes.
4. Check the cable connection to the
battery side of the power control
module by referring to the
maintenance manual.
5. After verifying that the battery power
cable is correctly connected, turn on
the battery switch and bus switch in
sequence to send a startup
command.
6. If the alarm persists, contact your
dealer or technical support.
3016
Cluster
controller
battery
undervolt
age
Major Cause ID = 1-3
Batteries are not
securely connected or
are abnormal.
LUNA2000-2.0MWH-1H0, 2H0 Smart String ESS
User Manual 10 Alarm Reference
Issue 02 (2021-11-15) Copyright © Huawei Technologies Co., Ltd. 144
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