Emerson GXT2U user manual Operating Instructions, Normal Mode Operation, Bypass Mode Operation

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Bypass Mode Operation at 26-50%
Normal Mode Operation at 26-50%

OPERATING INSTRUCTIONS

Normal Mode Operation

AC INPUT BATTERY UPS ON BYPASS

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 LEDs indicate an approximate level of load in 25% increments. If the UPS becomes loaded beyond full rating, the fifth (amber) LED indicator will illuminate and the UPS will sound an audible alarm. The display template indicates the percentage of load (26-50% of load shown in the example above) on the UPS output.

Bypass Mode Operation

AC INPUT BATTERY UPS ON BYPASS

Bypass mode occurs when the OFF button is pressed once while the UPS is in Normal Mode. During bypass operation, utility power provides energy to the UPS. The utility power bypasses the inverter and provides power for the connected load.

The four green load level LEDs indicate an approximate level of load in 25% increments. If the UPS becomes loaded beyond full rating, the fifth (amber) LED indicator will illuminate and the UPS will sound an audible alarm. The display template indicates the percentage of load (26-50% of load shown in the example above) on the UPS output.

! CAUTION

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

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PRODUCT

 

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Contents Liebert GXT2U DIS Product Table of Contents Operating Instructions Important Safety Instructions DIS Glossary of Symbols Introduction Battery Charger Rectifier/Power Factor Correction PFC CircuitMajor Components Transient Voltage Surge Suppression and EMI/RFI FiltersBattery DC-to-DC ConverterDynamic Bypass Liebert GXT2U-Rear View Tower UPS Installation InstallationPreparation Base to accommodateOptional rack mount handles Rack-Mount UPS Conversion and InstallationM5 screws Mounting railsApply grease UPS or battery cabinet Apply grease inside External Battery Cabinet Installation DIS ON/Alarm Silence/Manual Battery Test Button Controls and IndicatorsFault Indicator LED Red Load/Battery Level Indicators 4 Green, 1 AmberBypass Indicator LED Amber UPS on Indicator LED GreenOutput Voltage Selection Normal Mode Operation Bypass Mode OperationOperating Instructions Battery Recharge Mode Battery Mode OperationCommunications Pins 4 & 5 Remote Shutdown on BatteryCommunications Interface Port Pin Assignment DescriptionAuto-Enable Output Pin 6 Logic Pins 5 & 6 Any-Mode ShutdownUPS Intelligent Communications Liebert GXT2U Configuration Program Abilities Configuration ProgramBattery Replacement MaintenanceInternal Battery Replacement Procedures On bypass due to overtemperature condition beep every 4 sec TroubleshootingOn bypass due to DC bus overvoltage beep every 4 sec On bypass due to PFC failure beep every 4 secProblem Cause Solution Troubleshooting GuideBattery test is performed Condition Alarm Alarm ConditionsSpecifications Battery Cabinet Specifications Dimensions in mmWEIGHT, lb kg Internal Battery Battery Run TimesLoad % MinutesProduct Warranty Registration DIS DIS DIS Product Technical Support / Service Emerson Network PowerLocations
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