Emerson 480V user manual UPS Startup, Startup Procedure, Indicator State

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Operating Instructions

9.2UPS Startup

The Liebert NX must be fully installed and commissioned before startup, and external power isolators must be closed. Once those general conditions are met, the UPS may be started.

9.2.1Startup Procedure

To start the UPS from a fully powered-down condition:

1. Open the UPS door to gain access to the main input circuit breakers.

! WARNING

During this procedure the output terminals will become live.

If any load equipment is connected to the UPS output terminals, please check with the load user and ascertain whether it is safe to apply power to the load. If the load is not ready to receive power, then ensure that it is safely isolated from the UPS output terminals.

2.Close CB1, CB2 and CB3 (CB5 is open).

The main input contactor closes automatically and the LCD begins to show start-up

screens. The Rectifier indicator flashes green while the rectifier is starting up. It stops flashing and becomes solid green about 30 seconds after the rectifier enters the normal operation state.

After initialization, the bypass SCR closes. Because the output circuit breaker is still open, the UPS channels power through the Maintenance Bypass Supply line (CB3). The bypass indicator extinguishes, provided that the bypass is normal.

The opening display is shown in the figure at right. The UPS Mimic display indicators will be:

Indicator

State

Rectifier indicator

Green

 

 

Battery indicator

Red

 

 

Bypass indicator

Off

 

 

Inverter indicator

Off

 

 

Output indicator

Off

 

 

Status indicator

Off

 

 

F1

F2

F3

F4

HELP

3.Close CB5 (CB1, CB2, CB3 and CB5 are closed).

The Maintenance Bypass supply is now in parallel with the UPS Static Switch supply.

4.Verify that the Bypass indicator is Green, then open CB3.

The UPS powers from static bypass instead of from maintenance bypass. The bypass and load indicators turn on. The design of the hardware and software ensures uninterrupted output.

5.Close external battery circuit breaker.

After the UPS detects that the battery is connected, the red battery indicator extinguishes moments after the battery charger starts operation.

The UPS Mimic display indicators will be

Indicator

State

Rectifier indicator

Green

 

 

Battery indicator

Off

 

 

Bypass indicator

Green

 

 

Inverter indicator

Off

 

 

Output indicator

Green

 

 

Status indicator

Amber

 

 

72

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Contents Liebert NX UPS Page Table of Contents Operator Control and Display Panel UPS SpecificationsOptions 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 InspectionsUPS Location Internal InspectionsPreliminary Checks 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 Lug Size and Torque Requirements Power CablingCable Rating UPS Input Configuration Cabling GuidelinesCable Connections Input and output busbarsUPS Rectifier and Bypass Input Supply Safety GroundProtective Devices Cabling Procedure Output System Connections-Ensure Correct Phase RotationCommon Input Connections Dual Input ConnectionsControl Cables Frequency Converter ModeMonitor Board Features 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 relaysIndicates Pin EPO Input-OptionalEPO input contact relays Safety IntroductionExternal Battery Cabinet Installation Battery CabinetsInsulated Post Tray Handle For Cabling Connecting the BatteriesInstallation Considerations BCB Shunt Trip Connecting the Battery Cabinet to the UPSNon-Standard Batteries This power must be UPS protected Alber Monitoring System-OptionalLBS Cable and Settings Load Bus SynchronizationPerformance Requirements LBS CableGeneral Configuring Parallel System OperationFeatures of Parallel System Operation Modes Summary Installing Parallel SystemOperating Principles Redundancy Paralleling Cabinet Installation Power CablesConditions for Parallel System Preliminary ChecksCables InterconnectingAuxiliary Dry Contact Cables To Load Q1Ext Q2ExtQByp 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 SuppliedBypass Input DC Intermediate CircuitInverter Output Left Side GND Left Side View Front View Max. Door Swing U3819205 530628 Pg , Rev BattExt Auxiliary Contacts External Battery CabinetBattery Breaker 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 OutputGround UPS Utility UPS #1-UPS #4 Module AC Ph A, B, C UPS InputsPh A, B, C System Outputs 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 InputTests Start/stop BatteryLanguage Selection Current Date and Time Set date and timeUPS Status Messages Current status and history log recordsOpening Display Default ScreenTypes of LCD Screens UPS Help Screen Screen Saver WindowPop-Up Windows Liebert NX Operating Modes UPS operating modesCircuit Breakers Circuit breakersUPS Startup Startup ProcedureIndicator State 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 OperationPin Description MultiPort 4 CardAssignment Replacing Dust Filters Remote Alarm MonitorLBS Mode-Load Bus Synchronization 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 tableLead/Lag ratings External cabinet dimensions, including side panelsCable size and tightening torques 250 10 N*m Battery Run Times Estimated battery run time, minutesEvent Message Description / Suggested Action if any Services at 800-543-2378 for assistanceUPS status messages 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

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