Emerson 480V user manual Normally Open EPO, Normally Closed EPO

Page 40

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4.3.6Emergency Power Off (EPO)

The external emergency stop facility is identical to that described for the single unit installation— that an individual emergency stop button is provided for each unit.

Figure 20 Connecting EPO push button

UPS2

X2:3

X2:4 Monitor Board

X2:3

Monitor Board

X2:4

UPS1

Normally

Open EPO

UPS2

X2:1

Monitor Board

X2:2

X2:1

Monitor Board

X2:2

 

UPS1

Normally

Closed EPO

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Contents Liebert NX UPS Page Table of Contents Options UPS SpecificationsOperator Control and Display Panel Operating Instructions Pop-Up WindowsSpecifications and Technical Data Appendix a UPS Status MessagesTables Page Important Safety Instructions Battery Cabinet Precautions Glossary of Symbols Installation External InspectionsPreliminary Checks Internal InspectionsUPS Location Battery Location Considerations in Moving the Liebert NXMechanical Considerations Special Considerations for Parallel SystemsFloor Installation ClearancesCable Entry System CompositionCabinet arrangement-Liebert NX units and battery cabinets UPS Cable Rating Power CablingLug Size and Torque Requirements UPS Input Configuration Cabling GuidelinesCable Connections Input and output busbarsProtective Devices Safety GroundUPS Rectifier and Bypass Input Supply Cabling Procedure Output System Connections-Ensure Correct Phase RotationCommon Input Connections Dual Input ConnectionsMonitor Board Features Frequency Converter ModeControl Cables Dry Contacts Maintenance Bypass Cabinet Interface Maintenance bypass cabinet interfaceInput Dry Contacts Input dry contacts atBCB Control Interface BCB control interfaceInverter mode relay center Main input fault relay centerOutput Dry Contacts Output dry contact relaysEPO input contact relays EPO Input-OptionalIndicates Pin Safety IntroductionExternal Battery Cabinet Installation Battery CabinetsInstallation Considerations Connecting the BatteriesInsulated Post Tray Handle For Cabling Non-Standard Batteries Connecting the Battery Cabinet to the UPSBCB Shunt Trip This power must be UPS protected Alber Monitoring System-OptionalLBS Cable and Settings Load Bus SynchronizationPerformance Requirements LBS CableFeatures of Parallel System Configuring Parallel System OperationGeneral Operating Principles Redundancy Paralleling Installing Parallel SystemOperation Modes Summary Cabinet Installation Power CablesConditions for Parallel System Preliminary ChecksAuxiliary Dry Contact Cables InterconnectingCables QByp Q1Ext Q2ExtTo Load Normally Open EPO Normally Closed EPOUPS Mechanical Characteristics Environmental characteristicsUPS mechanical characteristics Conformity and StandardsUPS Electrical Characteristics UPS terminalRectifier input power Liebert approved replacement batteriesRated Power kVA 100 120 Battery Manufacturer Models SuppliedInverter Output DC Intermediate CircuitBypass Input Left Side GND Left Side View Front View Max. Door Swing U3819205 Ext Batt530628 Pg , Rev Battery Breaker External Battery CabinetAuxiliary Contacts Top Top Front Right Side Front Rear SystemRear FRONTOutput Run From Conductors Ph A, B, C System Input Ph A, B, C UPS InputsPh A, B, C UPS Outputs AC OutputPh A, B, C System Outputs Utility UPS #1-UPS #4 Module AC Ph A, B, C UPS InputsGround UPS Isometric View U3819301Single module block diagram dual input configuration General DescriptionNormal Mode Battery ModeBypass Mode Bypass SuppliesMaintenance Mode Parallel Redundancy Mode System ExpansionOperator Control Panel Display Panel LayoutMimic indicators Control buttons Navigation keys Detailed view of control panelMimic Display Indicators Mimic display status indicatorsControl Buttons Control buttonsAudible Buzzer LCD OverviewNavigation Keys UPS System InformationIcons for navigation keys Description of items in UPS system windowLCD Menus and Data Items Descriptions of UPS menus and data window items Menu Type Item Type ExplanationMains InputLanguage Selection Start/stop BatteryTests Current Date and Time Set date and timeUPS Status Messages Current status and history log recordsTypes of LCD Screens Default ScreenOpening Display UPS Help Screen Screen Saver WindowPop-Up Windows Liebert NX Operating Modes UPS operating modesCircuit Breakers Circuit breakersIndicator State Startup ProcedureUPS Startup Switch from Normal Mode to Bypass Mode Switch from Bypass Mode to Normal ModeMaintenance Bypass Procedure and Powering Down the UPS Auto Restart Emergency Shutdown With EPOBattery Protection Multi-Module System ProceduresBattery Undervoltage Pre-Warning Battery End-of-Discharge EOD ProtectionTie breaker Inserting One Module into a Multi-Module System LED Function StatusShutdown Procedure-Complete UPS and Load Shutdown Commissioning a Parallel SystemParallel System Start Up Power Output Communication and Other User TerminalsAnalog Input Interface Liebert IntelliSlot CommunicationSee 10.1.5 Configuring Liebert NX communication optionsComments Baud RatesConfiguring Baud Rates Liebert IntelliSlot Web card display Relay Card pin configuration Relay card jumper configurationRelay Card Pin Function OperationAssignment MultiPort 4 CardPin Description LBS Mode-Load Bus Synchronization Remote Alarm MonitorReplacing Dust Filters Torque specifications Battery torque ratingLug Size and Torque Requirements Cable Lengths Floor to Connection Point Inside UPSDistance to connection points on the Liebert NX UPS Parallel system current tableCable size and tightening torques External cabinet dimensions, including side panelsLead/Lag ratings 250 10 N*m Battery Run Times Estimated battery run time, minutesUPS status messages Services at 800-543-2378 for assistanceEvent Message Description / Suggested Action if any High ambient air temperature Bypass voltage is beyond the normal rangeBypass voltage exceeds the limit Software according to the customer’s agreementError can also leads to the alarm Alarm if applicableInverter STS Fail Condition is removedEmergency Power Off EPOUPS status messages UPS Status Messages Page Ne t ItiTi n That
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480V specifications

The Emerson 480V power systems play a critical role in modern industrial applications, providing reliable and efficient power distribution. These systems are designed for facilities that require robust performance and operational efficiency while adhering to safety regulations. With voltage ratings at 480V, they cater primarily to industries such as manufacturing, data centers, and commercial buildings.

One of the main features of the Emerson 480V systems is their scalability. These systems can be easily adapted and expanded as operational demands grow, thereby reducing initial investment costs and providing a flexible solution for evolving business needs. This ability to scale is crucial in a fast-paced environment where demands can change rapidly.

The Emerson 480V systems also incorporate advanced technologies for improved performance and safety. One key technology is the use of smart grid solutions. This enables real-time monitoring, diagnostics, and control, allowing facility managers to optimize energy consumption and reduce operational costs. Furthermore, these systems often include integrated protection devices that enhance safety measures by minimizing the risk of electrical faults, overloads, or short circuits.

Energy efficiency is another characteristic that distinguishes Emerson 480V systems from traditional alternatives. With advanced power management features, these systems effectively reduce energy waste and lower electricity bills. Emerson’s commitment to sustainability is evident in its designs, which aim to minimize environmental impact through energy-efficient technologies.

The build quality of Emerson 480V systems is also noteworthy. They are designed to withstand harsh industrial environments and are constructed with high-grade materials that promote longevity and reliability. The modular design allows for easy maintenance and repair, which further extends the lifespan of the system.

Additionally, Emerson 480V systems are equipped with user-friendly interfaces that facilitate ease of operation. This ensures that operators can efficiently manage and control power distribution without extensive training. The combination of performance, scalability, safety features, and user-centric design makes Emerson 480V systems an ideal choice for businesses looking to enhance their electrical infrastructure.

In summary, Emerson 480V power systems are a leading solution for industrial power distribution, characterized by their scalability, smart technology integration, energy efficiency, robust build quality, and user-friendly operation. These attributes make them a valuable investment for any organization aiming to improve its electrical management and operational performance.
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