Huawei UPS2000-G-20KRTL - Page 119

No. Symptom Possible Cause Measure
Overload
occurs.
Disconnect all loads, and
restart the UPS.
5 The Mains indicator is
o.
The mains
voltage or
frequency
exceeds the
UPS input
range.
Use a multimeter to check
that the input voltage and
frequency meet specications.
6 The battery discharge
time is much less than
the standard time.
Batteries are
not fully
charged.
Charge batteries for more than
8 hours when the mains is
normal. Test the discharge
time again.
The battery
performance
deteriorates.
Contact local Huawei technical
support to replace batteries.
7 Abnormal noises or
smell is generated in
the UPS cabinet.
The UPS is
faulty.
Shut down the UPS
immediately and cut o the
input power supply. Contact
local Huawei technical
support.
8 The battery indicator is
blinking yellow. The
buzzer buzzes 1
second and then stops
1 second. The battery
capacity is
insucient.
The UPS is shutting
down.
● The
remaining
battery
capacity is
insucient.
The UPS is
shutting
down, and
the loads
are
powering
o.
● Parameters
settings of
battery
number or
battery
capacity are
not correct.
● Save load data immediately
and power o critical loads.
● Connect UPS input
terminals to the backup AC
power supply.
● Set parameters of battery
number and battery
capacity correctly.
UPS2000-G- (6 kVA-20 kVA)
User Manual 8 Troubleshooting
Issue 18 (2021-07-16) Copyright © Huawei Technologies Co., Ltd. 111