6.2 Starting the UPS
● If no buttons are pressed for more than 10s in UPS setting mode, the LCD
home screen is displayed.
● If the long backup time model is not connected to an external battery pack, the
buzzer keeps buzzing.
● Charge the batteries used for the rst time for 5 hours. Otherwise, the battery
discharge time will decrease.
● The UPS performs a battery self-check automatically once a week. If batteries
are faulty, an alarm is generated.
● If the UPS is connected to the mains, when the battery packs or battery strings
connect to the UPS with long backup time for the rst time, you must do a
battery self-check manually, in order to conrm the battery connection is
normal. The method is: hold down the ON/MUTE button on the front panel for
5 seconds, then the UPS transfer to battery mode to do a shallow discharge
test, after 10 seconds it automatically back to line mode.
● The charge current is xed at 4 A for the UPS with long backup time. If the UPS
needs to connect to battery packs or battery strings, the total battery capacity
must exceed 18 Ah. Otherwise, batteries may be damaged. If the capacity of
external battery packs or battery strings to be connected exceeds 40 Ah, it is
recommended that an external charger be purchased to increase the charge
current. If an external charger is not purchased, the charge time will be long.
● The number of batteries are xed: 2 built-in batteries for the 1 kVA UPS with
standard backup time, 4 built-in batteries for the 2 kVA UPS with standard
backup time, 6 built-in batteries for the 3 kVA UPS with standard backup time,
3 external batteries in each string for the 1 kVA UPS with long backup time, 6
external batteries in each string for the 2 kVA UPS with long backup time, and
8 external batteries in each string for the 3 kVA UPS with long backup time.
● For a UPS with standard backup time, the battery capacity is xed at 9 Ah by
default, and the charge current is xed at 1 A. Set the battery capacity to the
total capacity of all batteries actually connected. Set the battery capacity for
the long backup time model based on site requirements. The default value is 18
Ah. For example, if the 3 kVA UPS with long backup time is connected to two
parallel 9 Ah/12 V battery strings each with eight batteries connected in series,
the battery capacity is 9 Ah + 9 Ah = 18 Ah. This parameter aects the backup
time calculation. Incorrect setting will cause incorrect display of the backup
time on the LCD.
In UPS setting mode, hold down the ON/MUTE button for more than 3s to go to the
previous option after a beep sound; hold down the SELECT button for more than 3s to go to
the next option after a beep sound; and hold down the OFF/ENTER button for more than 3s
to conrm the setting.
UPS2000-A-(1 kVA-3 kVA)
User Manual 6 Operations
Issue 17 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd. 75
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