Huawei Smart String ESS LUNA2000-200KWH-2H1 - Page 143

LUNA2000-200KWH-2H1 Smart String ESS
User Manual
6 Alarm Reference
Issue Draft (2022-10-30)
Copyright © Huawei Technologies Co., Ltd.
136
Alarm
ID
Alarm
Name
Severity
Possible Cause
Suggestion
3026
Internal
Fan of
Rack
Controller
Fault
Warning
Cause ID = 1, 2
The internal fan is
short-circuited, the power
supply is insufficient, or
the fan is damaged.
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. Turn on the switch on the battery side
and the switch on the bus side in
sequence, and issue a startup
command.
4. If the alarm persists, contact your
dealer or technical support.
3033
Communic
ation
Failure on
Power
Control
Unit of
Rack
Controller
Major
Cause ID = 1
The internal
communication of the
rack controller has failed.
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. Turn on the AC power supply switch,
the switch on the battery side, and the
switch on the bus side in sequence,
and issue a startup command.
4. If the alarm persists, contact your
dealer or technical support.
3034
Rack
Controller
Cable
Connection
Abnormal
Major
Cause ID = 1
The cable connection
between the battery rack
and the corresponding
power module is
incorrect.
If the system is in the array topology
identification process, wait until the
process is complete or exit the process.
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 cable connection
between battery rack and power
module under [ESR-CabinetNo] is
correct by referring to the DCDC
replacement section in the
maintenance manual of the product.
4. Check whether the auxiliary power
supply of battery rack
[ESR-CabinetNo] is normal and
whether the auxiliary power supply
switch is turned on by referring to the
product maintenance manual.
5. Check that the power cable is securely
connected. Turn on the AC power