Huawei LUNA2000-100KTL-M1 User Manual page 92

LUNA2000-100KTL-M1 Smart Power Control System
User Manual
Alarm Alarm
ID Name
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
2032 Grid Failure
Issue 02 (2023-01-10)
Severi Possible Cause
ty
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.
Major Cause ID = 1
1. The power grid experiences
an outage.
2. The AC power cable is
disconnected or the AC
circuit breaker is OFF.
Copyright © Huawei Technologies Co., Ltd.
8 Alarm Reference
Suggestion
Power off the device (turn off
the AC switch and DC switch,
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 switch and DC switch,
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 switch and DC switch,
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.
1. Check whether the AC
voltage is normal.
2. Check that the AC power
cable is connected and that
the AC switch is ON.
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