Huawei NetCol8000-E220 User Manual page 189

NetCol8000-E220 Modular Indirect Evaporative
Cooling System
User Manual
Alar
m ID
A281
-80
A281
-80
A282
-02
A282
-02
A282
-04
A282
-04
Issue 06 (2020-08-19)
Alarm Alarm Name
Severit
y
MAJOR Power voltage
abnormal
MAJOR Backup power
voltage
abnormal
CRITICA Power phase
L sequence
abnormal
MAJOR Backup power
phase
sequence
abnormal
CRITICA Power phase
L sequence
abnormal
MAJOR Backup power
phase
sequence
abnormal
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Probable Cause
1. The power supply
voltage exceeds the
upper threshold.
2. The SPD and
voltage detection
board is faulty.
1. The power supply
voltage exceeds the
upper threshold.
2. 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 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
input cable is faulty.
1. The power grid is
unstable.
2. The phase A
input cable is faulty.
Solution
1. Check that the
power supply voltage is
within the operating
range.
2. Replace the SPD and
voltage detection
board.
1. Check that the
power supply voltage is
within the operating
range.
2. 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. 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. Rectify the fault of
the phase A input
cable.
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