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High
Efficiency
mode
Once the mains are loss or
abnormal, the UPS would transfer to
Line mode or Battery mode and the
load is supplied continuously.
Converter
mode
The UPS would free run with fixed
output frequency (50Hz or 60Hz).
The load should be derating to 60%
in converter mode.
Bypass mode
Overload or fault has occurred, or a
command has been received, and
the UPS is in Bypass mode.
Battery test UPS is executing a battery test
Battery fail
The UPS detects bad battery or
battery disconnected
Overload
Some unnecessary loads should be
cut off to reduce the load.
Fault mode Some fatal problems happened.
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