6
Indicator Lights
6
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 BATTERIES AND ALARMS:
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 or the
batteries may simply be less than fully charged. Let the UPS charge for
twelve hours, then perform a second self-test. If the
LOW BATTERY
alarm sounds again, contact Tripp Lite for service.
LINE POWER:
This green light will turn ON whenever your UPS is
receiving normal AC line power. It will flash while the UPS is in
CHARGE ONLY
mode to indicate that the UPS will not provide battery
backup during a blackout or brownout.
BATTERY POWER:
This yellow light will turn ON when your UPS
is providing your equipment with battery power.
BATTERY CHARGE:
This red light will turn ON continuously
after the UPS runs a self-test to indicate that the UPS’s battery is
weakly charged. If it remains lit after you have allowed the UPS to
charge for twelve hours and run a second self-test, contact Tripp Lite
for service.
OVERLOAD:
This red light will turn ON continuously when the
UPS is providing power from battery or after the UPS runs a self-test
to indicate that the UPS’s inverter is overloaded. If it is lit, immediately
remove some of the equipment connected to the UPS and run a self-test.
Large overloads may cause your UPS to shut down.
Basic Operation
continued
Buttons
continued
200208100 93-2041 OM500RMX Manual.qxd 9/11/2002 3:09 PM Page 6
