
UPS2000-G-(3 kVA-20 kVA)-V2
User Manual (Two Live Wires)
7 Routine Maintenance
Issue 07 (2019-12-19)
Copyright © Huawei Technologies Co., Ltd.
92
Item
Expected Result
Measures
Maintenance Interval
Battery
operating
temperature
1.
The ambient battery
temperature is
25±5°C.
2.
The battery operating
temperature is lower
than battery
tempe 20°C.
3.
Battery charge and
discharge conditions
meet the requirements
specified in the
battery specifications.
1.
Identify the cause of the
abnormal battery
operating temperature.
2.
If the fault persists,
contact Huawei technical
support.
Monthly
Charge voltage
of battery string
Equalized voltage
14.1 V x Number of
batteries (tolerance
±1%)
Float voltage 13.5 V x
Number of batteries
(tolerance ±1%)
1.
If the voltage drop
between the battery string
output terminals and the
battery input terminals at
the UPS side is greater
than 1% of the battery
string voltage, check
whether the cable
between the battery string
and the UPS is
excessively long, or the
cable diameter is
excessively small.
2.
Check whether the
equalized charging
voltage and float charging
voltage are correctly set
for the UPS.
3.
If the fault persists,
contact Huawei technical
support.
Monthly
Battery
temperature
sensor
measurement
accuracy
The difference between
the temperature measured
by the temperature sensor
and the temperature
displayed on the LCD is
less than 3°C.
1.
Install the temperature
sensor in the correct
position.
2.
Replace the battery
temperature sensor.
Quarterly
Battery
specifications
The settings of battery
management parameters
meet the requirements in
the user manual.
Set parameters correctly.
Quarterly
Tightness of
bolts on battery
terminals
The location of the signs
marked on battery
terminals indicating tight
connections does not
change.
Take photos from multiple
angles and contact Huawei
technical support.
Quarterly
Cables between
No cable deteriorates and
Replace the faulty cable.
Quarterly