PDU8000 Modular Precision PDC V2.0
User Manual
8 Maintenance Guide
Issue 03 (2018-01-25)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
122
Alarm
Name
Alarm
Severity
Impact
Possible
Cause
Solutions
Main input
underfreque
ncy
Major
The input
frequency is 1.5
Hz lower than the
configured
frequency. The
frequency setting
range is 50–60
Hz.
The input
power supply
is faulty.
Check the input power.
Main input
overload
Critical
A phase input
current of a route
exceeds 1 time of
the rated current
(multiple: 1–1.2;
confirmation
time: 1–10s).
The system is
overloaded.
Check all output load
power.
Max. main
input cur.
exceed
Warning
A phase input
current of a route
exceeds 0.8 time
of the rated
current (multiple:
0.8–1).
The system is
overloaded.
Check all output load
power.
Min. main
input cur.
exceed
Warning
A phase input
current of a route
is lower than 0.6
time of the rated
current (multiple:
0.6–0.8).
N/A
N/A
Main input
surge
protection
abnormal
Major
Any dry contact
on the SPD
connecting to the
mains input is
disconnected.
The SPD
circuit breaker
is switched
off, or an SPD
module is
damaged.
Switch on the SPD
circuit breaker, or
replace the SPD
module.
Main input
breaker off
Warning
A mains switch
has changed from
ON to OFF.
N/A
N/A
Br. circuit
breaker off
Critical
A branch switch
has changed from
ON to OFF.
A branch
switch is off.
If you do not to display
a
Br. circuit breaker
off
, you set
Br. circuit
breaker off
to
Custom
, and set the
branch to
Disable
.
MDU path:
System
Info.
>
Setting
>
System Param.
