In case of the UPS works in battery mode, the
buzzer beeps once every 4 seconds.
When the mains power is low or unstable, UPS
will turn to the battery mode and LCD displays
‘batt’.
The UPS works in ECO mode in case of the
input mains meet the input range of the ECO
mode and the ECO function is on, the UPS
works in ECO mode. If input mains exceed the
range of ECO several times within one minute
but stays in inverter input range, UPS will
work in inverting mode automatically. LCD
displays ‘ECO’.
Frequency conversion mode is mainly to
provide a stable voltage and frequency . After
starting this mode, its output will not be
affected by utility to meet input needs of some
precision equipment and make users’ load
more stable and secure. After opening CUCF
mode setup, LCD displays ‘CUCF’. Under the
CUCF mode, when the output frequency is set
to 50HZ, the load capacity decreased to 80%
of the original volume; when the output
frequency is set to 60HZ, the load capacity
decreased to 70%. The output frequency is
fixed with the setting values, it doesn’t vary
with utility change. And the UPS cannot be set
to going bypass under this mode.
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