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AC-power disturbance
If AC power is disturbed or fails, the UPS continues to operate on battery power. In normal mode, the audio alarm beeps
every ten seconds, then every three seconds when the end of battery backup time is near.
If the power outage lasts longer than the battery backup time, the UPS shuts down and automatically restarts when
power is restored. Following a complete discharge, at least 48 hours are recommended to recharge the battery back to
full backup time.
To extended battery runtime for critical devices, it is possible to program sequenced shutdown (also known as load
shedding) of less-critical loads connected to Group 1 or Group 2 outlets during extended power outages.
5.2 Starting the UPS on battery
Before using this feature, the UPS must have been powered by utility power with output enabled at least once.
Battery start can be disabled. See the "Cold start" setting in "
To start the UPS on battery:
When the UPS is disconnected from the AC power source, press the
button on the UPS front panel.
The UPS transfers from Standby mode to Battery mode. The
indicator illuminates solid.
The UPS supplies power to your equipment.
Check the UPS front panel display for active alarms or notices besides the "Battery mode" and related notifications
that indicates missing utility power. Resolve any active alarms before continuing. See "
".
Check the UPS status from the front panel to view the active alarms. Correct the alarms and restart if necessary.
5.3 UPS shutdown
To shut down the UPS:
Press the
button on the front panel for three seconds.
A confirmation message will appear. When confirmed, the UPS starts to beep and shows a status of "UPS shutting OFF...".
The UPS then transfers to Standby mode, and the
indicator turns off.
5.4 Operating modes
The Eaton 5PX front panel indicates the UPS status through the UPS indicators located above the LCD screen.
Normal mode
When the green sinewave symbol is illuminated, the UPS is providing protected AC power output. The UPS monitors and
charges the batteries as needed and provides power protection to your equipment.
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 Normal mode operation while the battery recharges.
If battery capacity becomes low while in Battery mode, the audible alarm beeps once every three seconds.
This warning is approximate, and the actual time to shutdown may vary significantly; gracefully shutdown all applications
on connected equipment due to imminent UPS shutdown.
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.
