Item Expected Result Troubleshooting Maintenance
Interval
Battery
string
charging
voltage
● Equalized
charging voltage
(2.35 V/cell±0.02
V/cell) x Voltage
of a single
battery/2 x
Number of
batteries in a
battery string
● Float charging
voltage (2.25 V/
cell±0.02 V/cell)
x Voltage of a
single battery/2 x
Number of
batteries in a
battery string
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 oat
charging voltage are
correctly set for the
UPS.
3. If the fault persists,
contact technical
support.
Monthly
7.2.2 Quarterly Maintenance
Table 7-5 Quarterly maintenance checklist
Item
Expected Result Troubleshooting Maintenance
Interval
Battery
temperatu
re sensor
precision
The deviation
between the
detected
temperature and
the displayed
temperature is less
than 3°C.
1. Install the battery
temperature sensor in
the correct position.
2. Replace the battery
temperature sensor.
Quarterly
Battery
managem
ent
parameter
settings
The settings of
battery
management
parameters meet
the requirements in
the user manual.
Set parameters correctly. Quarterly
UPS2000-H-(6 kVA-10 kVA)
User Manual 7 Maintenance
Issue 03 (2023-08-20) Copyright © Huawei Digital Power Technologies Co., Ltd. 123
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