
8
Front Panel Indicator Lights continued
“BYPASS” LED: This yellow light will flash to indicate that the
UPS’sDC/ACinverterisdeactivatedandtheUPSisinthe“Bypass”
mode.DuringnormaloperationthisLEDwilllightbrieflywhenthe
unitispluggedin,butifaninternalfaultoroverloadoccursthislight
willflashconstantlyandthefaultLEDwillilluminatetoshowthat
connectedequipmentwillreceivefilteredACmainspower,butwill
notreceivebatterypowerduringablackout.Inthiscase,contactTripp
Lite for service. If the UPS has been placed into Economy Mode
(available on select UPS systems), it configures an online UPS to
functionasaswitchingUPS.WhentheUPSsystemisinEconomy
Mode,itoperates atincreasedefficiency whileACutility poweris
available(within+/-10%nominal)andswitchestobatterypowerif
AC utility power is interrupted. The yellow “BYPASS” LED will
remain on when the UPS system is in Economy Mode. (For more
informationonhowtoaccesstheEconomyMode,pleaserefertothe
PowerAlertsoftwareUser’sManual)
“FAULT” LED (select models only):Thisredlightwillflashwhen
yourUPSdetectsaninternalfault(overheating,overvoltages,etc.)or
when it detects a wiring fault in your wall outlet (reversed phases,
missingground,etc.)TheUPSwillonlydetectwiringfaultswhenitis
pluggedintoautilityoutletbutnotturnedON.Ifthelightpersistsafter
restartingtheUPS,contactan electricianto checktheACline.Your
UPSwillidentifythepresenceofmost(butnotall)wiringfaults.
“LOAD ACTIVE METER” LED:Thisgreenlightwillilluminate
whenyourUPSisreceivingACpowertoindicatethatthesetoffour
dual-functionLEDsisdisplayingtheloadlevelofyourUPS.
“BATT ACTIVE METER” LED:Thisgreenlightwillilluminate
whenyourUPSisoperatingfrombatterypowertoindicatethatthe
setoffourdual-functionLEDsisdisplayingthebatterychargelevel
ofyourUPS.Note:the“ONBATT”LEDwillalsobeilluminated.
“OVERLOAD” LED:Thisredlightwillilluminateconstantlytoindicate
thatyourUPS’scapacityhasbeenexceededwhileitisinon-lineoperation.
TheUPSalarmwillbeepcontinuously.Immediatelyremoveoverload
untillightandalarmgoesoff.Ifyoudonot immediatelyremovethe
overload,theUPSwilltransferfromon-linetobypassoperation.
“BATT LOW” LED:ThisyellowlightwillilluminatewhenyourUPS’s
batterychargelevelislow.TheUPSalarmwillbeepuntileitherthe
batterychargeisdepletedorthebatteriesareadequatelyrecharged.
“ON BATT” LED: This green light will illuminate constantly to
indicatethatAClinevoltageisnotpresentandyourUPSisproviding
yourequipmentwithbatterypower.TheUPSwillalsobeepeverytwo
seconds,unlesssilencedbythe“ON/TEST”Button.Whenthislight
isilluminated,youcanmonitorthebatterychargelevelofyourUPS
onthe“BATTACTIVEMETER”LEDs.
Basic Operation (continued)