Alarm
ID
Alarm
Name
Severity Possible Cause Suggestion
3033 Communi
cation
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
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. 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.
LUNA2000-200KWH-2H1 Smart String ESS
Maintenance Manual 3 Alarm Reference
Issue 02 (2023-02-28) Copyright © Huawei Digital Power Technologies Co., Ltd. 51
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