Huawei FusionModule5000 Maintenance Manual page 60

FusionModule5000 Smart Modular Data Center
Maintenance Guide (ECC800)
Alarm
Name
Main input
breaker
tripping
Main input
overvoltage
Main input
undervoltag
e
Main input
overfrequen
cy
Main input
underfreque
ncy
Main input
overload
Max. main
input cur.
exceed
Issue 01 (2019-03-05)
Alarm Impact
Severity
Critical The mains switch
has tripped.
Critical Input
overvoltage:
Input voltage V >
1.2 x Rated
voltage (Multiple:
1.05–1.25;
confirmation
time: 2–10s).
Critical Input
undervoltage:
Input voltage V <
0.85 x Rated
voltage (Multiple:
0.75–0.95;
confirmation
time: 2–10s).
Major The input
frequency is 1.5
Hz higher than
the configured
frequency. The
frequency setting
range is 50–60
Hz.
Major The input
frequency is 1.5
Hz lower than the
configured
frequency. The
frequency setting
range is 50–60
Hz.
Critical A phase input
current of a route
exceeds 1 time of
the rated current
(multiple: 1–1.2;
confirmation
time: 1–10s).
Warning A phase input
current of a route
exceeds 0.8 time
of the rated
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3 Alarm Reference
Possible Solutions
Cause
The back-end Check whether the
is back-end current is
short-circuited short-circuited or
or experiences experiences
overcurrent. overcurrent.
The input Check the input power.
power supply
is faulty.
The input Check the input power.
power supply
is faulty.
The input Check the input power.
power supply
is faulty.
The input Check the input power.
power supply
is faulty.
The system is Check all output load
overloaded. power.
The system is Check all output load
overloaded. power.
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