Alar
m ID
Alarm
Name
Severit
y
Possible Causes Troubleshooting Suggestions
Cause ID = 2
The black start button is
faulty.
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.
Cause ID = 3
Black boot auxiliary
power-o error.
Cause ID = 4
The black-start function
cannot be enabled.
Cause ID = 5
The main/auxiliary
source disable control is
faulty.
Table 10-4 BCU common alarms and troubleshooting measures
Alarm
ID
Alarm
Name
Severit
y
Possible Causes Troubleshooting Suggestions
3013 Cluster
Controll
er
Battery
Module
Commu
nication
Abnorm
al
Major Cause ID = 1
The cluster controller
monitoring module fails
to communicate with the
battery module.
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 ESM [ESR-
CabinetNo ESM-SlotNo]
communications cable is correctly
connected.
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.
LUNA2000-2.0MWH-1H0, 2H0 Smart String ESS
User Manual 10 Alarm Reference
Issue 02 (2021-11-15) Copyright © Huawei Technologies Co., Ltd. 159