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Operation
15
Powerware
®
9120 User's Guide S 05147426 A Uncontrolled Copy
Starting the UPS on Battery
NOTE Before using this feature, the UPS must have been powered by utility power at
least once and the batteries must be completely charged.
To turn on the UPS without using utility power, press and hold
the
button until you hear the UPS beep (approximately one second).
The UPS supplies power to your equipment and goes into Battery mode.
The LCD briefly displays
On Delay, then On Battery and the
and
+
-
indicators illuminate. When the UPS starts on battery, it does not
conduct a selfĆtest to conserve battery power.
Turning the UPS Off
To turn off the UPS, press and hold the button until the long beep
ceases (approximately five seconds).
NOTE When you press and hold the button, the LCD displays Shutdown Pending.
The
indicator turns off and the LCD briefly displays UPS OFF before
going blank. The fan continues to run and the UPS remains in Standby
mode until you unplug or remove utility power from the UPS.
Standby Mode
When the UPS is turned off and connected to a power source, the UPS is
in Standby mode. The fan continues to run and the battery recharges
when necessary. The
indicator is off and the LCD panel is blank,
indicating that power is not available from the UPS.
Diagnostic Tests
The UPS automatically performs a self-test when powered on and when
the UPS restarts after a power outage. The self-test monitors the UPS
electronics and battery and indicates any problems on the front panel.
A battery test is automatically performed every 30 days (720 hours) of
continuous Normal mode operation. The test lasts approximately
15 seconds and any failure is displayed on the front panel.
Both the UPS and battery tests can be performed manually (see
Configuration Mode" on page 17 for more information).