Alarm
ID
Alarm Name Severity Possible Cause Suggestion
2006 DC Short-
Circuited or in
Reverse Polarity
Major Cause ID = 1
The DC bus of the device is
short-circuited or
connected in reverse
polarity.
Power o the device (turn
o the AC and DC
switches, and wait for a
period specied on the
device safety warning
label), and then perform
the following operations:
Check whether the DC
terminals are short-
circuited or connected in
reverse polarity. If yes,
adjust the DC bus cable
connection.
2007 DC Connected in
Series
Major Cause ID = 1
The DC buses of the device
are connected in series.
Power o the device (turn
o the AC and DC
switches, and wait for a
period specied on the
device safety warning
label), and then perform
the following operations:
Check whether the DC
terminals are connected in
series. If yes, adjust the DC
bus cable connection.
2008 DC Bus Not
Securely
Connected
Major Cause ID = 1
The DC bus of the device is
not securely connected.
Power o the device (turn
o the AC and DC
switches, and wait for a
period specied on the
device safety warning
label), and then perform
the following operations:
Check whether the DC
terminals are connected
securely. If not, adjust the
DC bus cable connection.
2031 Phase Wire Short-
Circuited to PE
Major Cause ID = 1
The phase wire is short-
circuited to PE or its
impedance to PE is low.
Check the impedance of
the phase wire to PE,
locate the position with
low impedance, and
rectify the fault.
LUNA2000-200KTL-H0 Smart Power Control System
User Manual 10 Alarm Reference
Issue 05 (2022-06-30) Copyright © Huawei Technologies Co., Ltd. 87