2.Installation and connection
8
Notes
Check system operation beforehand if the unit is used in combination with a
device whose power supply frequency fluctuates widely, such as a personal
electric generator.
●
The unit automatically recognizes the input power frequency when input power is supplied.If the unit is
connected when the input power frequency is not stable at the rated level, the unit may misidentify the
power supply frequency and may fail to operate normally. (If the unit is in operation, changing from com-
mercial power supply to another power supply source, such as generating equipment, will cause no prob-
lem. Set the generator's frequency to the same level as that of the commercial power supply.)
Do not install or store the unit in a place exposed to direct sunlight.
●
The rise of temperature may cause the built-in battery to deteriorate rapidly and become unusable.
Before performing a withstand voltage test or insulation resistance test, make
sure to remove the input surge protection GND screw from the back of the unit.
When in use, make sure the input surge protection GND screw is securely
fastened.
●
Performing the withstand voltage test with the ground wire connected may damage the surge absorption
element built into the power supply input circuit.
Before stopping the commercial power to the unit, turn OFF the power switch of
the unit.
●
The unit enters Battery Mode when commercial power is stopped. If you frequently use the unit in Battery
Mode, the battery life may be signifi cantly shortened.
If this unit is used with an inductive device such as a coil or motor, check the
operation beforehand.
●
With some types of devices, the effect of inrush current may cause this unit to stop operating properly.
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