Normally Open EPO, Normally Closed EPO | Emerson 40-200KVA manual

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5.3.6Emergency 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 19 Connecting EPO push button

UPS2

	X2:3	Monitor Board
	X2:4	Monitor Board
X2:3	Monitor Board
X2:4	Monitor Board

UPS1

Normally

Open EPO

UPS2

X2:1

X2:2 Monitor Board

X2:1

X2:2 Monitor Board

UPS1

Normally

Closed EPO

35

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Emerson 40-200KVA user manual Normally Open EPO, Normally Closed EPO

Contents

Liebert NX UPS Page Table of Contents Options UPS Specifications Installation Drawings Operation Operator Control and Display PanelOperating Instructions Appendix a UPS Status Messages Specifications and Technical Data Connecting EPO push button Tables 114 Viii Important Safety Instructions Page Battery Cabinet Precautions Page Glossary of Symbols Introduction Internal Inspections External Inspections UPS Location Preliminary Checks Considerations in Moving the Liebert NX Battery LocationSpecial Considerations for Parallel Systems Final Position Mechanical Considerations Floor InstallationClearances Cable Entry Front of Units Optional Cabinets Front of Units Power Cabling Cable RatingLug Size and Torque Requirements Cabling Guidelines UPS Input Configuration Cable Connections Safety GroundProtective Devices UPS Rectifier and Bypass Input Supply Cabling Procedure Common Input ConnectionsDual Input Connections Frequency Converter Mode Output System Connections-Ensure Correct Phase Rotation Control Cables Monitor Board Features J16 J22 J23 J12 J15J13 J21 J25 J26 J30 Maintenance bypass cabinet interface Maintenance Bypass Cabinet InterfaceDry Contacts Input Dry Contacts Output Dry Contacts Battery Circuit Breaker Control InterfaceBCB control interface Output dry contact relays EPO Input-Optional EPO input contact relaysIndicates Pin Safety Battery Cabinets External Battery Cabinet Installation Connecting the Batteries Installation ConsiderationsInsulated Post Tray Handle For Cabling Non-Standard Batteries Connecting the Battery Cabinet to the UPS Alber Monitoring System-Optional BCB Shunt Trip Load Bus Synchronization LBS Cable and SettingsPerformance Requirements LBS Cable UPS Configuring Parallel Sbasystem Operation Features of Parallel SystemGeneral 480V, 3W System Input 480V, 3W System Output480V, 3W Output RIB 2 UPS Module RIB 3 UPS Module RIB 4 UPS Module Operating Principles Redundancy Paralleling Installing Parallel SystemOperation Modes Summary Conditions for Parallel System Power Cables Cabinet InstallationPreliminary Checks Parallel Control Cables Parallel System Control Cables Auxiliary Dry Contact Cables Normally Closed EPO Normally Open EPO Environmental characteristics UPS Mechanical CharacteristicsUPS mechanical characteristics Conformity and Standards UPS terminal UPS Electrical Characteristics Rectifier input power Rated Power kVA 100 120 160Input Rectifier Battery Models Manufacturer Supplied Liebert-approved replacement batteriesRated Power kVA 100 120 160 200 DC Intermediate Circuit Bypass Input Inverter OutputInverter output Bypass input Liebert BDC Normal UPS Mode Maintenance Mode Cable InstallationLocating the Cabinet Input/Output Wiring Liebert BDC connection to UPS Control wiring for Liebert NX UPS to Liebert BDC Install Interrupting Circuit breaker schedule Main circuit breaker Panelboard branch circuit breaker Main panelboard circuit breaker208V 225A T3N225TW Square D I-Line panelboard circuit breaker Subfeed circuit breaker Bolting a Liebert Nxups to a Liebert BDC Bolting Cabinets Together Outline drawing, Liebert BDC, 47 cabinet Outline drawing, Liebert NX 40-120kVA Weights, Liebert NX 40-120kVA Battery cabinet circuit breaker Battery cabinet groundTorque Unit Rating Bolt Size Lb-in N-m 80-120 225 Electrical specifications, Liebert NX 160-200kVA Liebert NX 160-200kVA dimensions-front and left side U389641 GND Front View Left View TOP View Liebert NX 160-200kVA main components-typical unit Detail a 224mm 609.3 872.2 34.3 Detail B Front Detail a CBB Installation Drawings Front Top Right Side Top Front Rear Without Covers Front Run From Conductors Door Open Front Without Covers Left Side General Description Single module block diagram dual input configuration Battery Mode Normal ModeBypass Supplies Operating Modes Maintenance Mode Parallel Redundancy Mode System ExpansionEco Mode Display Panel Layout Operator Control Panel Mimic display status indicators Mimic Display Indicators Control buttons Control Buttons LCD Overview Audible Buzzer UPS System Information Navigation KeysIcons for navigation keys Description of items in UPS system window LCD Menus and Data Items Descriptions of UPS menus and data window items Language Start/stopTests Current Date and Time Language Selection Set date and time Current status and history log records UPS Status Messages 10.12.2Default Screen Types of LCD Screens10.12.1Opening Display 10.12.4Screen Saver Window 10.12.3UPS Help Screen Pop-Up Windows UPS operating modes Liebert NX Operating Modes Startup Procedure UPS StartupCircuit Breakers Indicator State Switch from Bypass Mode to Normal Mode Switch from Normal Mode to Bypass Mode Operating Instructions Operating Instructions Energize Nx 480 with Bypass Distribution Cabinet BDC Emergency Shutdown With EPO Auto Restart Multi-Module System Procedures Battery Protection11.10.1Battery Undervoltage Pre-Warning 11.10.2Battery End-of-Discharge EOD Protection 103 LED Function Status 11.11.2Inserting One Module into a Multi-Module System 11.11.3Shutdown Procedure-Complete UPS and Load Shutdown Commissioning a Parallel SystemParallel System Startup Communication and Other User Terminals Power OutputAnalog Input Interface Liebert IntelliSlot Communication See 12.1.5 Configuring Configuring Baud RatesLiebert NX communication options Comments Liebert IntelliSlot Web card display Relay Card LBS Mode-Load Bus Synchronization Remote Alarm MonitorReplacing Dust Filters MultiPort 4 Card Battery torque rating Torque specificationsBattery In-lb N-m Lug Size and Torque Requirements Cable Lengths Floor to Connection Point Inside UPS Distance to connection points on the Liebert NX UPSParallel system current table Cable size and tightening torques External cabinet dimensions, including side panels 113 Enersys battery run times in minutes Battery Run Times D Dynasty battery run times in minutes Specifications and Technical Data 116 Event Message Description / Suggested Action if any UPS status messages 118 119 120 121 Is t Ne tTwor k Care