Liebert GXT2-6000 RT208 Normal Mode Operation, Battery Mode Operation, Battery Recharge Operation

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Normal Mode Operation Batteries at 100% charge
L1 Load at 10%, L2 Load at 90%
Battery Mode Operation Batteries at 30% charge
L1 Load at 60%, L2 Load at 60%

Modes of Operation

10.0MODES OF OPERATION

10.1Normal Mode Operation

During normal operation, utility power provides energy to the UPS. The filters, power factor correction circuit and the inverter process this power to provide computer grade power to connected loads. The UPS maintains the batteries in a fully charged state. The four green Load Level indica- tors display an approximate level of load in 25% increments. If the UPS becomes loaded beyond full rating, the fifth (amber) indicator will illuminate and the UPS will sound an audible alarm. The display template indicates the percent- age of load (see example at right) on the UPS output.

10.2Battery Mode Operation

Battery mode occurs in event of an extreme input voltage condition or complete utility failure. The battery system supplies power through the DC to DC converter to the inverter to generate power for the connected load. During battery mode an alarm sounds every 10 seconds. This will change to two beeps every 5 seconds when the battery runs low (approximately 2 minutes remaining, but this is user configurable). The AC Input indicator will extinguish and the Battery indicator will illuminate to warn that a utility problem has occurred. Each Battery Level indicator repre- sents a 20% capacity level. As capacity decreases, fewer indicators remain illuminated. Refer to 13.0 - Trouble- shooting. For approximate battery run times, refer to Table 7 - Battery run times. These times are approximate

based on resistive load and an ambient temperature of 77°F (25°C). To increase this time, turn off non-essential pieces of equipment (such as idle computers and monitors) or add the optional external battery cabinet.

! CAUTION

Turning OFF the UPS while in battery mode will result in loss of output power.

10.3Battery Recharge Operation

Once utility power is restored, the UPS resumes normal operation. At this time, the Battery Charger begins recharging.

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Contents Power Availability GXT2-6000RT208Page Table of Contents Configuration Program Controls and IndicatorsMaintenance TroubleshootingSpecifications Modes of OperationFigures Important Safety Instructions Page Glossary of Symbols Introduction and System Description Rectifier/Power Factor Correction PFC Circuit Battery ChargerInverter System DescriptionBattery DC to DC ConverterDynamic Bypass Internal Battery Pack Main Frame and ElectronicsMajor Components Removable Power Distribution Box PD-001Top bezels Tower use Battery cover grille GEC connector Mounting hardware Rack mount HandlesConfiguration Disk Ferrite Beads WHAT’S IncludedInstall the Main Cabinet Installation and ConfigurationTower UPS Installation Attach Bezels to TopInstalling the Adjustable Rack-Mount Kit-Sold Separately QuantityReturn flanges Retaining Latches Front Innermembers members M4 nuts Rack Depth M4 nutsExternal Battery Cabinet Installation Connect Input/Output Power Replacing a power distribution boxDistribution Box Electrical Connections Slide cover over connec- tors Loosen screws to move cover4 PD-001 Power Distribution Box PD-HDWR and PD-HDWR-MBS Terminal Block ConnectionsElectrical requirements-PD-HDWR and PD-HDWR-MBS Electrical requirements-PD-001Install the Grounding Electrode Conductor Install the Internal Battery PackGround Electrode System or Protective Earth System Initial Startup and Electrical Checks Initial Startup and Electrical Checks GXT2-6000RT208 Configuration Program Features Configuration ProgramWhat You Will Need Configuration Program-Installation Establishing Communication Link with the UPS Configuration Program-Operation Read/Confirm UPS Configuration SettingsChanging UPS Settings Exit Without Changing UPS SettingsUPS Tab Output VoltageAuto Restart N Reverse Detection 120V UPS Models OnlyOptions Tab Frequency SelectionOptions Tab Used With Earlier GXT 2U Models Battery Tab Low Battery Time WarningAuto Battery Test Time Battery Cabinets NumberAbout Tab ON/Alarm Silence/Battery Test Button Controls and IndicatorsOFF/Bypass Button Horizontal overlay for rack mountingBattery Level Indicators 5 Green Fault Indicator RedBypass Indicator Amber UPS on Indicator GreenNormal Mode Operation Battery Mode OperationBattery Recharge Operation Modes of OperationCommunications Interface Port Communications11.1.1 DB-9 Interface Port Communications Snmp Web Card Snmp AdapterPin 4 Remote Shutdown on Battery UPS Intelligent CommunicationsRemote Emergency Power Off Key to Repo switch connections 1 VDC Sense GroundRepo Connection Battery Replacement MaintenanceInternal Battery Replacement Procedures Battery Cover Captive Screws Front BezelsUPS Replacement Connector Connector cover Cover Electrical connectorsTroubleshooting Fault indicatorsIndicator status Diagnosis/Audible alarm Alarm conditions Troubleshooting guide Problem Cause SolutionCondition Alarm Only phase angles of 120, 180 or 240 degrees ±10 Battery run times Battery/External Cabinets Load% Minutes6000VA Run Time Auto-Learning Battery Run Times Specifications UPS specificationsBattery specifications Power distribution box specificationsSee Battery run times Model NumberProduct Warranty Registration External battery cabinet specificationsUsed w/ UPS Model GXT2-6000RT208 Dimensions in mm Specifications Page Technical Support/Service Company Behind the ProductsLocations Asia 23F, Allied Kajima Bldg