Huawei Smart String ESS LUNA2000-200KWH-2H1 - Page 146

LUNA2000-200KWH-2H1 Smart String ESS
User Manual
6 Alarm Reference
Issue Draft (2022-10-30)
Copyright © Huawei Technologies Co., Ltd.
139
Alarm
ID
Alarm
Name
Severity
Possible Cause
Suggestion
side in sequence, and issue a startup
command.
5. If the alarm persists, contact your
dealer or technical support.
Cause ID = 3
The power-on self-test
was terminated due to a
system exception.
1. Check other active alarms of the
device and rectify the faults based on
the alarm handling suggestions.
2. If the alarm persists after the system is
reset, contact your dealer or technical
support.
3052
External
DC
Auxiliary
Power
Supply of
Rack
Controller
Fault
Major
Cause ID = 1
1. The DC circuit
breaker is OFF.
2. The PSU is faulty.
1. Locate the input and output circuit
breakers associated with [ESC-No].
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 whether the PSU in the power
distribution cabin reports a fault
alarm.
4. Check whether the DC circuit breaker
is ON.
5. After checking that the PSU is normal,
turn on the AC power supply switch,
the switch on the battery side, and the
switch on the bus side in sequence.
6. If the alarm persists, contact your
dealer or technical support.
3053
External
Fan of
Rack
Controller
Fault
Warning
Cause ID = 1–3
The external fan is
short-circuited or
damaged, the power
supply is insufficient, or
the air channel is
blocked.
1. Locate the input and output circuit
breakers associated with [ESC-No].
2. Issue a shutdown command, turn off
the switch on the battery side and then
the switch on the bus side, and wait
for 5 minutes.
3. Check whether the fan blades are
damaged. If yes, clear the foreign
matter around the fan, and install a
new fan.
4. Turn on 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.
3054
Rack
Controller
Temperatur
e Abnormal
Warning
Cause ID = 1, 2
The NTC is
short-circuited,
open-circuited, or not
1. Locate the input and output circuit
breakers associated with [ESC-No].
2. Issue a shutdown command, turn off
the switch on the battery side and then
the switch on the bus side, and wait