Huawei UPS2000-G Series - Page 125

Check
Item
Expected
Result
Troubleshooting Maintenance Interval
Battery
string
charge
voltage
● Equalized
charge
voltage: 14.1
V x Number
of batteries
(tolerance
±1%)
● Float charge
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 charge
voltage and
oat
charge voltage are
correctly set for the
UPS.
3. If the fault persists,
contact technical
support.
Monthly
Battery
temperatu
re sensor
measure
ment
accuracy
The deviation
between the
detected
temperature
and the
displayed
temperature
must be 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
Check that the
settings of
battery
management
parameters
meet the
requirements in
the user
manual.
Set parameters
correctly.
Quarterly
UPS2000-G-(6 kVA-20 kVA)
User Manual 7 Routine Maintenance
Issue 21 (2022-10-13) Copyright © Huawei Technologies Co., Ltd. 117