Emerson 208V, GXT3 user manual Battery Mode Shutdown, On Battery, Low Battery

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Communication

5.3.2Battery Mode Shutdown

Battery Mode Shutdown permits shutting down the UPS by turning Off the rectifier, inverter and bypass so that there is no power to the load when the UPS is On Battery.

Battery Mode Shutdown can be performed locally or remotely:

•Local Any Mode Shutdown can be performed by shorting Pin 3 and Pin 4

•Remote Any Mode Shutdown can be achieved by a switch connected to Pin 3 and Pin 4 and mounted at a remote location.

NOTE

Remote Power Off will be performed by NO contact.

A current-limited source for this optocoupler (+12VDC, 50mA) will be available from UPS.

The connection to the Liebert® GXT3™ for remote connection will be via terminal block connector.

Battery mode shutdown wiring must conform to all national, regional and local wiring regulations.

This signal must last for 1.5 seconds or longer.

A battery shutdown signal will not cause an immediate shutdown. It will start a 2 minute shut down timer. This timer cannot be stopped once triggered. If utility power returns during this countdown, the Liebert GXT3 will still shut down and must remain shut down for 10 seconds. Whether the UPS turns back On when the power is restored depends on the auto-restart setting.

5.3.3On Battery

On Battery signal is a Normally Open (NO) dry contact. When the UPS is supplying output power from the battery this dry contact will be closed.

5.3.4Low Battery

Low Battery signal is a Normally Open (NO) dry contact. When the UPS is supplying output power from the battery and has reached the Low Battery Warning time selected in the configuration program, this dry contact will be closed.

NOTE

The rated values for the dry contacts for the On Battery and Low Battery signals are:

•Rated Voltage: 30V (AC or DC)

•Rated Current: 300mA

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Contents Liebert GXT3 UPS 120V/208V 500VA-3000VA Page Table of Contents Troubleshooting MaintenanceOperation CommunicationFigures Page UPS Safety Notes Important Safety PrecautionsInformation for the Protection of the Environment Battery SafetyGlossary of Symbols UPS models, power ratings FeaturesModel Nominal Power Rating Available ModelsAppearance and Components Rear Panel FeaturesFront Panel and Controls Ventilation Slots Operation Display Panel15R OutputLiebert GXT3 208V rack/tower models-rear panel components Rectifier/Power Factor Correction PFC Circuit Major ComponentsInverter Operating Mode Battery Mode Battery Recharge ModeFrequency Converter Mode Installation Preparation for InstallationUnpacking and Inspection What’s IncludedTower Installation Mechanical InstallationConnectors Spacers Support Bases Front Plastic Bezel CoverLiebert GXT3 Operation and Display Panel Rotated Clockwise 90 DegreesLiebert UPS External CabinetPulling inner member from each slide rail assembly Rack InstallationInstalling front member of each slide rail assembly Installing rack-mount handles Connecting Battery Cables Connecting Input Plug and LoadsInput circuit breaker specification Cable ConnectionConnecting USB Communication Cables Connecting Communication Cables1 On/Alarm Silence/Manual Battery Test Button Controls and IndicatorsControl Buttons Standby/Manual Bypass ButtonIndicators Level Indicators Battery Level IndicatorsLoad Level Indicators UPS Status Indicators UPS status indicatorsUPS Status Indicator Icon Color Description Manual Battery Test Startup Checklist for the Liebert GXT3Starting the UPS Manual BypassShut Down the Liebert GXT3 Disconnecting Input Power from the Liebert GXT3Liebert IntelliSlot Communication Cards CommunicationLiebert MultiLink Factory UPS Model Default, VAC Output Voltage Option, VAC Configuration ProgramUSB Port Communication Output voltage optionAny-Mode Shutdown Terminal Block CommunicationBattery Mode Shutdown On BatteryLow Battery Maintenance Replacing the Internal Battery PackBattery Replacement Procedures Replacement internal battery pack model numberBattery Door Screws Front Bezel Battery ConnectorInternal Battery Pack Handle Pull Out with Battery Handle Precautions Battery ChargingChecking UPS Status Checking UPS FunctionsTroubleshooting UPS SymptomsIndicators Indicator Diagnosis/Audible alarmAudible alarm description Audible AlarmTroubleshooting Condition AlarmTroubleshooting Input Breaker Battery Connectors Battery CabinetSpecifications Dimensions, D × W × H, in. mm Weight, lb. kgEnvironmental Operating temperature parameters Battery cabinet specificationsVAC RT Battery run timesProduct Warranty Registration Specifications Page Is t Ne tTwor k Care
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GXT3, 208V specifications

The Emerson 10-30 kVA, 208V uninterruptible power supply (UPS) solution is a robust system designed to provide reliable power protection for critical applications in commercial and industrial settings. This UPS is ideal for safeguarding IT equipment, communication systems, and other sensitive electronics against power disturbances and interruptions.

One of the standout features of the Emerson 10-30 kVA UPS is its modular design, allowing for flexibility and scalability. This means that as the power needs of a facility grow, the UPS can be easily expanded without requiring a complete system overhaul. This modularity contributes to a more efficient use of resources and minimizes operational costs.

The UPS also incorporates advanced technologies such as double-conversion online architecture, which provides the highest level of power quality. This technology ensures that the output power is consistently clean and stable, effectively eliminating harmful voltage fluctuations and frequency variations. Consequently, connected load receives a pure sine wave output, preventing potential damage or operational issues with sensitive equipment.

Another key feature is the high efficiency rating of the Emerson UPS, which exceeds 95 percent in typical operating conditions. This high efficiency translates to reduced energy costs and a smaller carbon footprint, aligning with modern sustainability goals. The cooling system is designed to be efficient as well, ensuring optimal performance while maintaining a compact footprint.

The user-friendly interface enhances operability, featuring an intuitive LCD display that allows for easy monitoring of critical power parameters. Users can access real-time data related to battery health, load levels, and operational status, which aids in effective management of the power supply.

Battery management is another critical aspect of the Emerson UPS. It employs advanced battery management technologies to ensure optimal battery life and performance. Features such as intelligent battery testing and monitoring help predict potential battery failures before they occur, allowing for proactive maintenance and minimized downtime.

In summary, the Emerson 10-30 kVA, 208V UPS offers a combination of modularity, high efficiency, advanced technologies, and effective power management features that cater to the demanding needs of critical applications. With its reliable performance and user-friendly operation, this UPS solution is an excellent choice for organizations looking to protect their valuable equipment from power disturbances.
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