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Basic Operation
Buttons (Front Panel)
Use the POWER button to switch your UPS between its four modes of operation.
OFF: No indicator lights are on. The UPS is completely shut down for storage or shipping.
If the UPS is connected to AC power, it will start up in STANDBY mode. If the UPS is not
connected to AC power and the POWER button is pressed for two seconds, the UPS will
“cold start” into INVERT mode.
STANDBY: The “ ” light is flashing. The UPS is receiving AC power and using it to
charge its batteries, but its outlets are not active. Pressing the POWER button while the
UPS is in STANDBY will put the UPS in the ON mode. Unplugging the UPS or cutting AC
power while the UPS is in STANDBY will put the UPS in the OFF mode.
ON: The “ ” light is on. The UPS is receiving AC power, charging its batteries and delivering
power to connected equipment. If AC power is lost while the UPS is ON (i.e. a blackout
occurs), the UPS will switch into INVERT mode. Pressing the POWER button while the
UPS is ON will put the UPS in STANDBY mode.
INVERT: The “ ” light is flashing. The UPS is powering connected equipment from battery
backup. If AC power is restored, the UPS will switch to the ON mode. Pressing the
POWER button while the UPS is in INVERT will put the UPS into the OFF mode. If the
UPS is in INVERT and its batteries are drained, the UPS will switch to the OFF mode until
AC power is restored, then switch to the ON mode.
Use the MUTE/TEST button to do two things:
SILENCE ALARM: Your UPS has three alarms. The first, the INVERT alarm, emits four
short beeps every ten seconds when the UPS is in INVERT mode, to warn you that AC
power has failed. The second, the OVERLOAD alarm, emits short, rapid beeps when the
UPS is in INVERT mode if the total power draw of connected equipment exceeds the
UPS’s output capacity, to warn you to reduce the load. The third, the Low Battery alarm,
emits a constant beep when the UPS is in INVERT mode and its batteries are very nearly
depleted, to warn you that connected equipment must shut down. To silence the INVERT
or OVERLOAD alarms, press the MUTE/TEST button. The LOW BATTERY alarm will
only stop when the UPS switches to the OFF or ON mode.
SELF-TEST: If your UPS is in the ON mode and has a load connected, you may test its
batteries by pressing the MUTE/TEST button for two seconds. The UPS will switch to
INVERT mode for several seconds. Normally, the INVERT alarm (four short beeps) will
sound, indicating that the system is working properly. If the OVERLOAD alarm (short,
rapid beeps) sounds, reduce the load on the UPS. If the LOW BATTERY alarm (a constant
beep) sounds, your UPS’s batteries may need replacing, your external battery connection
may be loose or the batteries may simply be less than fully charged. Check the external battery
connection, let the UPS charge for 12 hours, then perform a second self-test. If the LOW
BATTERY alarm sounds again, contact Tripp Lite for service. Do not unplug your UPS to
test its batteries, or you will remove safe electrical grounding and may introduce a damaging
surge into your network connections.