Emerson GXT2U user manual Battery Mode Operation, Battery Recharge Mode

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Battery Mode Operation at 80-61%

Battery 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

AC INPUT BATTERY UPS ON BYPASS 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 LED will extinguish, and the Battery LED will illuminate to warn that a utility problem has occurred. Each battery level indicator represents a 20% capacity level. As capacity decreases, fewer indicators remain illuminated. Refer to Troubleshooting section.

For approximate battery run times, refer to the Battery Run Times charts in this manual. These times are approximates 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.

Battery Recharge Mode

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

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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 Major Components Rectifier/Power Factor Correction PFC CircuitBattery Charger Transient Voltage Surge Suppression and EMI/RFI FiltersDC-to-DC Converter BatteryDynamic Bypass Liebert GXT2U-Rear View Preparation InstallationTower UPS Installation Base to accommodateRack-Mount UPS Conversion and Installation Optional rack mount handlesMounting rails M5 screwsApply grease UPS or battery cabinet Apply grease inside External Battery Cabinet Installation DIS Controls and Indicators ON/Alarm Silence/Manual Battery Test ButtonBypass Indicator LED Amber Load/Battery Level Indicators 4 Green, 1 AmberFault Indicator LED Red UPS on Indicator LED GreenOutput Voltage Selection Bypass Mode Operation Normal Mode OperationOperating Instructions Battery Mode Operation Battery Recharge ModeCommunications Interface Port Pins 4 & 5 Remote Shutdown on BatteryCommunications Pin Assignment DescriptionPins 5 & 6 Any-Mode Shutdown Auto-Enable Output Pin 6 LogicUPS Intelligent Communications Configuration Program Liebert GXT2U Configuration Program AbilitiesMaintenance Battery ReplacementInternal Battery Replacement Procedures On bypass due to DC bus overvoltage beep every 4 sec TroubleshootingOn bypass due to overtemperature condition beep every 4 sec On bypass due to PFC failure beep every 4 secTroubleshooting Guide Problem Cause SolutionBattery test is performed Alarm Conditions Condition AlarmSpecifications Dimensions in mm Battery Cabinet SpecificationsWEIGHT, lb kg Load % Battery Run TimesInternal Battery MinutesProduct Warranty Registration DIS DIS DIS Product Emerson Network Power Technical Support / ServiceLocations
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