FusionModule1000A40 IT Solution
Maintenance Guide (2016.05, AI Version)
3 Maintenance
Issue 04 (2018-01-05)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
19
Item
Method
Expected
Result
Troubleshooting
Switchover
between the
mains
supply and
UPS2000-G
batteries
1.
Verify that the
UPS is working
properly,
disconnect and
restore the
mains supply,
and check the
switchover
between the
mains supply
and batteries.
2.
Use a
multimeter to
measure the DC
voltage between
the positive
terminal and the
negative
terminal of
battery packs.
1.
After the
mains
supply is
disconnecte
d or
restored,
the UPS
automatical
ly switches
to battery
mode or
online
mode.
2.
The voltage
between the
two
terminals of
the battery
packs is
around 535
V.
If any single battery is faulty,
replace the entire battery string.
UPS2000-G
fastening
bolts
Check the
UPS2000-G
fastening bolts.
The fastening
bolts are
secured.
If any fastening bolt is loose, tighten
all fastening bolts using a torque
wrench.
UPS2000-G
battery
charge and
discharge
cycles
Verify that both
batteries and the
AC mains input are
normal. When the
UPS works in
online mode,
disconnect the AC
input, discharge the
battery string to
about 450 V, and
restore the AC
mains input. Then
check the battery
string voltage.
The voltage of
the battery
string is
normal.
If the voltage of the battery string is
abnormal, replace the entire battery
string.