Eaton DX 1000 LAN, Руководство пользователя

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2. Product introduction
2.1 Functions description
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This product is a true online double-conversion UPS (Uninterruptible
Power Supply). It provides perfect protection for critical load such as
computer system. It can eliminate almost all mains power
disturbances. The input AC current can be corrected to a wave
following the mains voltage, so it is a high power factor system.
Through the PWM control technology, the output voltage can be a
pure & stable sine wave AC voltage.
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When the mains input become abnormal, the controller will stop the
AC/DC and start the DC/DC section immediately to make sure the
DC/AC (inverter) section can continue to work. After the mains input
come back to normal range, the DC/DC will be stopped, and the
AC/DC works again. So, the load is always power-supplied through
inverter without any interrupt if the UPS is turned on.
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The UPS also provides an internal bypass way to make the load can
be powered by mains input directly when the UPS is off or failed.
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The UPS have an internal charger for batteries, the charger will
charge the batteries when the mains is in a reasonable range on
“bypass mode” or “line mode”.