Huawei LUNA2000-2.0MWH Series - Page 215

Alarm
ID
Alarm
Name
Severity Possible Cause Suggestion
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
o 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 insucient,
or the air channel is
blocked.
1. Locate the input and output
circuit breakers associated with
[ESC-No].
2. Issue a shutdown command, turn
o 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.
LUNA2000-2.0MWH Series Smart String ESS
User Manual 10 Alarm Reference
Issue 08 (2022-11-15) Copyright © Huawei Technologies Co., Ltd. 205