Huawei PDU8000 User Manual page 78

PDU8000 Modular Integrated PDC V1.0
User Manual
Alarm Name
Failed to configure
board
Board quantity
inconsistency
Abnormal board
power supply
Main input open
phase
Main input
communication
transmission (CT)
reverse connect
Main input breaker
tripping
Main input
overvoltage
Main input
undervoltage
Main input
overfrequency
Main input
underfrequency
Main input overload
Max. main input
cur. exceed
Min. main input cur.
exceed
Main input THD-u
high
Issue 07 (2019-04-15)
Alarm Possible Cause
Severity
Critical The MDU version does not
match the power distribution
monitoring board.

Critical Monitoring board fault
 The cable has become
loose.
Major The voltage of power input
to the detection board is less
than 9.5 V.
Critical The input power is abnormal. Check the input power.
The common polarity
Major
terminal and common
terminal on a phase current
transformer of main route are
reversely connected.
The back-end is
Critical
short-circuited or
experiences overcurrent.
Critical The input power is abnormal. Check the input power.
Critical The input power is abnormal. Check the input power.
Major The input power is abnormal. Check the input power.
Major The input power is abnormal. Check the input power.
Critical The system is overloaded.
The maximum main input
Major
current exceeds the preset
upper threshold.
Warning The minimum main input
current is below the preset
lower threshold.
Warning The input power is abnormal. Check the input power.
Copyright © Huawei Technologies Co., Ltd.
8 Operation and Maintenance
Solutions
Use the latest upgrade package to
activate the board.

Check whether the run indicator of
the monitoring board is steady on.
If no, replace the monitoring
board.
 Check whether the CAN cable is
securely connected.
Check the power supply routes to the
detection board.
Switch cables connected to the
common polarity terminal and
common terminal. Figure 8-1 uses
dual-input as an example to show the
cable connection for the common
polarity terminal and common
terminal of the current transformer for
route I phase L1.
Check whether the back-end current
is short-circuited or experiences
overcurrent.
Check all output load power.
Check all output load power.
Check all output load power.
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