Huawei LUNA2000-2.0MWH Series User Manual page 212

LUNA2000-2.0MWH Series Smart String ESS
User Manual
Alarm Alarm
ID Name
3040 Incorrect
Bus
Connectio
n on Rack
Controller
Issue 08 (2022-11-15)
Severity Possible Cause
Major Cause ID = 1
The output buses are
not connected in
parallel in the 1C
scenario.
Copyright © Huawei Technologies Co., Ltd.
10 Alarm Reference
Suggestion
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
and then the switch on the bus
side, and wait for 5 minutes.
3. Check whether the cable
connection to the bus side of the
power control module meets the
1C requirement by referring to
the quick installation guide.
4. After checking that the battery
power cable is correctly
connected, turn on the switch on
the battery side and then the
switch on the bus side, and issue
a startup command.
5. If the alarm persists, contact your
dealer or technical support.
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