Huawei LUNA2000-200KWH-2H1 User Manual page 192

LUNA2000-200KWH-2H1 Smart String ESS
User Manual
Alar Alarm
m ID Name
3052 ESC
External
DC
Auxiliary
Power
Supply
Faulty
3053 External
Fan of
Rack
Controller
Faulty
Issue 03 (2023-03-30)
Severit Possible Cause
y
Major Cause ID = 1
1. The DC circuit
breaker is OFF.
2. The PSU is faulty.
Warnin Cause ID = 1–3
g
The external fan is
short-circuited or
damaged, the power
supply is insufficient, or
the air channel is
blocked.
Copyright © Huawei Digital Power Technologies Co., Ltd.
Suggestion
1. Determine the positions of the input
and output circuit breakers associated
with [ESC-No] and the DC output
switch of the PSU, and check whether
the DC output switch of the PSU is
turned on.
2. Issue a hibernation command to the
ESR corresponding to the ESC, and
turn off the switch on the battery
side, the switch on the bus side, and
the DC output switch of the PSU.
Then wait for 5 minutes.
3. Check whether the PSU in the power
distribution cabin reports a fault
alarm. If yes, rectify the fault
according to the handling
suggestions.
4. After checking that the PSU is
normal, turn on the DC output switch
of the PSU, the switch on the battery
side, and the switch on the bus side
in sequence.
5. If the alarm persists, contact the
vendor or technical support.
1. Determine the positions of the input
and output circuit breakers associated
with [ESC-No] and the AC input
power switch of the PSU.
2. Issue a hibernation command to all
ESRs, and turn off the switch on the
battery side, the switch on the bus
side, and the AC input power switch
of the PSU. Then 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 AC input power switch of
the PSU, the switch on the battery
side, and the switch on the bus side
in sequence, and issue a running
command.
5. If the alarm persists, contact the
vendor or technical support.
13 Alarm Reference
183