● It is recommended that the UPS be powered on as soon as possible after it is
unpacked.
● The UPS can be used to serve resistive-capacitive loads, resistive loads, and
micro-inductive loads. It is recommended that the UPS not be used for pure
capacitive loads, pure inductive loads, or half-wave rectication loads. The
UPS does not apply to regeneration loads.
● The UPS can be congured with a backfeed protection dry contact to work
with an external automatic circuit breaker, preventing the voltage from
owing back to input terminals over static bypass circuits. If the installation
and maintenance personnel do not need backfeed protection, attach labels on
external mains and bypass input switches, informing that the UPS is
connected to a backfeed protection card. Disconnect the backfeed protection
card from the UPS before operating the UPS.
● The upstream power distribution of the UPS must meet the requirements of
protection against electric shock specied in IEC 60364-4-41.
● For the equipment that uses a three-pin socket, ensure that the ground
terminal in the socket is connected to the protective ground point.
● A circuit breaker equipped with a residual current device (RCD) is not
recommended.
● If the root mean square (RMS) of a phase voltage of the utility power exceeds
320 V AC, the UPS may be damaged.
● To ensure power supply to loads during UPS upgrade, set the output to
maintenance bypass mode. To avoid power failure or load damage, ensure
that the bypass input is within the specied power supply range.
● Exercise caution when manually shutting down the UPS inverter for
transferring to bypass mode, or when adjusting the UPS output voltage level
or output frequency. Doing so may aect the power supply to equipment.
1.2.2 Battery Safety
Do not connect the positive and negative poles of a battery or battery string
together. Otherwise, the battery may be short-circuited. Battery short circuits can
generate high instantaneous current and releases a large amount of energy, which
may cause battery leakage, smoke, ammable gas release, thermal runaway, re,
or explosion. To avoid battery short circuits, do not maintain batteries with power
on.
Do not expose batteries at high temperatures or around heat sources, such as
scorching sunlight, re sources, transformers, and heaters. Battery overheating
may cause leakage, smoke, ammable gas release, thermal runaway, re, or
explosion.
UPS2000-A-(1 kVA-3 kVA)
User Manual 1 Safety Information
Issue 17 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd. 5
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