Huawei NetCol5000-A025 User Manual page 221

NetCol5000-A025 In-row Air Cooled Smart Cooling
Product
User Manual (300 mm Width)
Al
ar
m
ID
a2
8
2
Issue 15 (2020-12-10)
Alarm Ala Impact
Name rm
Sev
erit
y
Backup MA Generates
power JOR an alarm
voltage and shuts
abnorm down the
al smart
cooling
product.
Power MA Generates
phase JOR an alarm
sequen and shuts
ce down the
abnorm smart
al cooling
product.
Power MA Generates
phase JOR an alarm
sequen and shuts
ce down the
abnorm smart
al cooling
product.
Power MA Generates
phase JOR an alarm
sequen and shuts
ce down the
abnorm smart
al cooling
product.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Causes
1. The power
supply voltage is
below the lower
threshold.
2. The cables to
the SPD and
voltage
detection board
are loose or
damaged.
3. The SPD and
voltage
detection board
is faulty.
1. The phase
sequence of the
power supply is
incorrect.
2. The SPD and
voltage
detection board
is faulty.
1. The power grid
is unstable.
2. The phase A/B/C
input cable is
faulty.
1. The power grid
is unstable.
2. The SPD and
voltage
detection board
may be faulty if
it is configured.
Solution
1. Check that the
power supply
voltage is within
the operating
range.
2. Check the cable
connection to the
SPD and voltage
detection board.
3. Replace the SPD
and voltage
detection board.
1. Rectify the phase
sequence of the
power supply.
2. Maintain or replace
the SPD and
voltage detection
board.
1. Check the power
grid.
2. Rectify the fault of
the phase A input
cable.
1. Check the power
grid.
2. Maintain or replace
the SPD and
voltage detection
board.
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