Omron Powli BU50SW Instruction Manual page 20

Do not connect a standalone transformer such as a voltage transformer
or isolating transformer to the output side.
● Overcurrent may damage the UPS.
● There is no problem in connecting a transformer to the input side.
Do not connect devices that cannot be used with commercial power
supply.
● When the unit's power switch is turned ON and an error occurs with the connected device,
bypass operation is performed and commercial power supply is supplied as is to the
connected devices.
When a 15A plug (NEMA5-15P) is used with BU150SW, the maximum
capacity connectable to output is approximately 1100VA/950W.
● Doing so will cause the internal temperature to rise, which may cause the unit to fail and the
battery to deteriorate.
● When the "15A input exceeded" display appears (
cator), replace the input plug with a 20A input plug.
When replacing the input plug for the BU150SW, perform connection
as specifi ed, making sure to properly match the plug terminals with the
appropriate wire colors.
● Refer to "Using a 20A plug" on page 11.
● Failure to do so may result in electric shock or ground fault.
For PLUGGABLE EQUIPMENT, the socket-outlet shall be installer near
the equipment and shall be easily accessible.
When moving the unit from a cold place to a warm place, leave it for several hours
before using it.
● If the unit is promptly turned ON after being moved to a warmer place, condensation may form inside the
unit and cause it to fail.
Charge the battery for at least 8 hours soon after purchasing the unit.
Recharge the battery for at least 8 hours every 6 months when the storage
tempareture is 25°C or less, or every 2 months when the storage temperture is 40°C
or less.
● If you do not use the unit for a long time after the purchase, the battery may deteriorate and the battery
may become unusable.
● To charge a battery, connect the AC input plug of the unit to a wall outlet (commercial power).
When storing the unit, charge the battery for at least 8 hours and turn OFF the power
switch.
● Even if the unit is not used, the battery gradually discharges, and if it is left for a long time, it goes into an
over discharge state.
The backup time may become shorter or the battery may become unusable.
● We recommend keeping the temperature 25°C or less when storing the unit for long periods of time.
● Before storing an additional battery, charge it for at least 24 hours.
Do not short the output lines of the unit to each other, and do not short the output
lines to the ground.
● The unit may fail.
50 75
BU SW / BU
Caution
(for installation and connection)
or is displayed on the status indi-
Notes
100 150
SW / BU SW / BU SW
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