32
Eaton 9PX Lithium-Ion User Guide P-164001006—Rev 02
Optional High Efficiency and Energy Saving settings minimize heat contribution to the rack environment. See
section
.
Battery Mode
When the UPS is operating during a power outage, the alarm beeps once every ten seconds and the
indicator illuminates solid. The necessary energy is provided by the battery. When the utility power returns, the
UPS transfers to Online mode operation while the battery recharges. If battery capacity becomes low while on
Battery mode, the audible alarm beeps once every 3 seconds. This warning is approximate, and the actual time
to shutdown may vary significantly. Shutdown all applications on the connected equipment because automatic
UPS shutdown is imminent. When utility power is restored after the UPS shuts down, the UPS automatically
restarts.
Low-Battery Warning
•
The
indicator illuminates solid.
•
The audio alarm beeps every three seconds.
The remaining battery power is low. Shut down all applications on the connected equipment because
automatic UPS shutdown is imminent.
End of battery backup time
•
LCD displays "End of backup time".
•
All the LEDs go OFF.
•
The audio alarms stops.
Bypass Mode
In the event of a UPS overload or internal failure, the UPS transfers your equipment to utility power. Battery
mode is not available and your equipment is not protected; however, the utility power continues to be passively
filtered by the UPS. The
indicator illuminates. Depending on overload conditions, the UPS remains in
Bypass mode for at least 5 seconds and will stay in this mode if three transfers to Bypass occur within 20
minutes.
The UPS transfers to Bypass mode when:
•
the user activates Bypass mode through the front panel.
•
the UPS detects an internal failure.
•
the UPS has an overtemperature condition.
•
the UPS has an overload condition listed in
.
The UPS shuts down after a specified delay for overload conditions listed in
. The UPS remains on to
alarm the fault.
55..55
R
Reettuurrnn ooff A
AC
C P
Poow
weerr
Following an outage, the UPS restarts automatically when AC input power returns (unless the restart function
has been disabled) and the load is supplied again.
55..66
S
Seettttiinngg H
Hiigghh EEffffiicciieennccyy M
Mooddee
In High Efficiency mode, the UPS operates normally on Bypass and transfers to Online (or Battery) mode in less
than 10 ms when utility fails. Transfers to High Efficiency mode will be active after 5 minutes of Bypass voltage
monitoring: if Bypass quality is not in tolerance, then the UPS will remain in Online mode.
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