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1. Brief Introduction
The Online EX Series is an uninterruptible power supply incorporating
double-conversion technology, optional EPO and maintenance switch,
parallel redundancy. It provides perfect protection specifically for computer
equipment, communication systems and computerized instruments.
Its true online double-conversion design eliminates all mains power
disturbances. A rectifier converts the alternating current from the utility
power to direct current. This direct current charges the batteries and
powers the inverter. On the basis of this DC voltage, the inverter
generates a pure sinusoidal AC voltage, which is constantly powering the
loads.
In the event of power failure, the maintenance-free batteries power the
inverter. If overload or inverter failure, UPS will work on bypass mode to
power with mains power. After load become normal, it will still work on
battery mode.
This manual is applicable to the following models:
lEX6K: Standard model with built-in batteries.
lEX6KL: Long backup time model, it is able to connect with the
external battery bank.
lEX10K: Standard model with built-in batteries.
lEX10KL: Long backup time model, it is able to connect with the
external battery bank.
lEX3110KL: three-phase input and single-phase output, long backup
time models, it is able to connect with the external battery bank.
lEX3115KL: three-phase input and single-phase output, long backup
time models, it is able to connect with the external battery bank.
lEX3120KL: three-phase input and single-phase output, long backup
time models, it is able to connect with the external battery bank.
Above all models contain standard rev and professional rev, User can
select corresponding model by its requirement, compared with standard
rev, professional rev (Model number with “P”) has EPO switch and bypass
maintenance switch built-in, about the function of EPO and bypass
maintenance switch please refer to 2.8 and 2.9.
