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