Liebert PowerSure Personal XT 450 User Manual page 7

The front panel LEDs and audio beeps indicate the UPS status.
Switch and LEDs
On/off
Status-LED
(green)
Fault-LED
(red)
Switch and LEDs
Beep continuously
for 2 sec.
1 beep every 4 sec. Power failure: UPS is battery mode.
1 beep every sec.
1 beep every 2 sec. Battery weak: UPS is normal mode (online), battery is not
3 beep every 2 sec. Battery replacement: battery needs to be replaced.
2 beep every 2 sec. Charger fault: UPS cannot recharge the battery. See
1 beep every half
sec.
Continuous
LED & ALARMS
Symbol
Turn the UPS system an and off.
1. Steady: Input power is acceptable;
the UPS is in normal mode (online)
2. Blinking: Input power is out of
tolerance; the UPS is battery mode.
3. Off: No input power or
the battery is exhausted or
the UPS is switched off.
1. Blinking: The UPS is overloaded or
has failed at battery test.
!
2. Steady: UPS fault.
Starting up the UPS.
Battery low: UPS is in battery mode, batteries are
nearly axhausted, and UPS will be shut down.
fully charged, backup time during power failure shorter
than nominal value.
chapter Troubleshooting for more information.
Overload. See chapter Troubleshooting for more information.
Fault: please contact your dealer.
7
Function
Function