● If the 1 kVA UPS with long backup time needs to connect to external battery
strings, each battery string must consist of three 12 V batteries connected in series.
If the 2 kVA UPS with long backup time needs to connect to external battery
strings, each battery string must consist of six 12 V batteries connected in series. If
the 3 kVA UPS with long backup time needs to connect to external battery strings,
each battery string must consist of eight 12 V batteries connected in series.
● The charge current is xed at 4 A for the UPS with long backup time. If the UPS
needs to connect to battery boxes or battery strings, the total battery capacity
must exceed 18 Ah. Otherwise, batteries may be damaged. If the capacity of
external battery boxes 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.
● Two battery strings are connected in parallel in the ESS-36V12-9*2AHBPVBB,
ESS-72V12-9*2AHBPVBB, and ESS-96V12-9*2AHBPVBB01 battery boxes
respectively. A maximum of two battery boxes can be connected in parallel.
3. Install an optional card.
Install an optional communications card for the UPS. For details, see the
RMS-
SNMP01B SNMP Card User Manual
,
RMS-RELAY01B User Manual
, and
RMS-
MODBUS01B User Manual
.
Figure 4-6 Installing an optional card on the UPS (standard backup time
model)
Figure 4-7 Installing an optional card on the UPS (long backup time model)
UPS2000-A-(1 kVA-3 kVA)
User Manual 4 Installation and Cable Connection
Issue 17 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd. 40
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