Niveo Professional NUPS22-1000U - Manual (Page 19)

16
3-6. Operating Mode Description
Operating
mode
Description LCD display
Rack Display Tower Display
Online mode
When the input voltage is within
acceptable range, UPS will provide
pure and stable AC power to output.
The UPS will also charge the battery at
online mode.
ECO mode
(Efficiency
Corrective
Optimizer) When the input voltage is within
setting range (±3%Vo max), UPS will
bypass voltage to output for energy
saving. PFC and INVERTER are still
active at this mode.
AECO mode
(Advanced
Efficiency
Corrective
Optimizer) When the input voltage is within
setting range (±3%Vo max), UPS will
bypass voltage to output for energy
saving. PFC and INVERTER are off at
this mode.
Frequency
Converter
mode
When input frequency is within 40 Hz
to 70 Hz, the UPS can be set at a
constant output frequency, 50 Hz or
60 Hz. The UPS will still charge
battery under this mode.
Battery
mode
When the input voltage is beyond the
acceptable range or power failure and
alarm is sounding every 4 second,
UPS will backup power from battery.
Bypass
mode
When input voltage is within
acceptable range but UPS is
overload, UPS will enter bypass mode
or bypass mode can be set by front
panel. Alarm is sounding every 10
second.