Emerson Liebert NX 30-200kVA User Manual

AC PowerFor Business-Critical Continuity™Liebert NX™ UPSUser Manual–40-200kVA, 480V, 60Hz

2Battery Cabinet PrecautionsThe following warning applies to all battery cabinets supplied with UPS systems. Additional warn-ings and cautions applica

Specifications and Technical Data9211.2 Cable Lengths: Floor to Connection Point Inside UPSTo help calculate the total cable length required, refer to

Specifications and Technical Data9311.3 Cable size and tightening torquesTable 28 External cabinet dimensions, including side panelsWide Parallel Cabi

Specifications and Technical Data94Table 32 Cable size tightening torque at Liebert NX 100kVA UPS terminalsBus TypeCable Size(Copper Wire Only)Torque

Specifications and Technical Data9511.4 Battery Run TimesTable 37 Enersys battery run times in minutesExternal Battery CabinetSoftscale RangeScalable

Specifications and Technical Data96UPS12-100MR 3 28 16 10 N/A N/A N/A N/A N/AUPS12-150MR 3 50 32 22 N/A N/A N/A N/A N/AUPS12-210MR 3 77 48 35 N/A N/A

UPS Status Messages97APPENDIX A-UPS STATUS MESSAGESTable 39 shows all event messages as they appear in the current status area of the LCD and in the h

UPS Status Messages98Bypass AbnormalThis alarm is triggered by an inverter software routine when the amplitude or frequency of bypass voltage exceeds

UPS Status Messages99Unit OverloadThe UPS is overloaded when the load arises above 105% nominal rating.The alarm automatically resets once the overloa

UPS Status Messages100LBS ActiveThe LBS setting is active. The UPS is acting as an LBS master or slave in a dual bus configuration.Battery ground faul

UPS Status Messages101Balancer FaultInternal VDC (+) and VDC (-) offset by over 50V exceeding the inverter DC offset compensation capacity. Inverter s

3!CAUTIONDo not dispose of batteries in a fire. They may explode.!CAUTIONDo not open or mutilate batteries. Released electrolyte is harmful to the ski

UPS Status Messages102

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4GLOSSARY OF SYMBOLSRisk of electrical shockIndicates caution followed by important instructionsAC inputAC outputRequests the user to consult the manu

Installation51.0 INSTALLATIONLiebert’s NX Uninterruptible Power Supply system provides continuous, high-quality AC power to your business-critical equ

Installation61.2 Internal Inspections1. Remove any packaging material, then visually examine the UPS and battery equipment for transit damage, both in

Installation7Battery LocationBatteries must be installed in Liebert NX 480V battery cabinets or battery room. Temperature is a major factor in determi

Installation81.6.1 ClearancesThere are no ventilation grilles on the sides or rear of the UPS. The unit may be placed with the rear against a wall and

Installation9Figure 1 Cabinet arrangement—Liebert NX units and battery cabinetsFront of UnitsBatteryCabinetBatteryCabinetBatteryCabinetLiebertNXUPSFro

Installation10Figure 2 Cabinet arrangement—Liebert NX UPS, battery cabinets and Liebert NX bypass distribution cabinetsFront of UnitsLiebert NX Bypass

Electrical Connections112.0 ELECTRICAL CONNECTIONSThe UPS requires both power and control cabling once it has been mechanically installed. All control

Electrical Connections122.1.2 UPS Input ConfigurationFigure 3 illustrates the Liebert NX in a split bypass (dual-input) configuration. In this configu

Electrical Connections132.1.4 Cable ConnectionsThe rectifier input, bypass and output are easily accessible from the front of the unit for installatio

Electrical Connections142.1.5 Safety GroundThe safety ground busbar is located below the Maintenance Bypass circuit breaker or to the right of the UPS

Electrical Connections154. Identify and make power connections with incoming cables according to Steps 5 through 10.Common Input Connections5. For com

Electrical Connections162.2 Control Cables2.2.1 Monitor Board FeaturesBased on your site’s specific needs, the UPS may require auxiliary connections t

Electrical Connections17Figure 6 Auxiliary terminal block detail (Monitoring Board)2.3 Dry ContactsThe UPS provides input dry contacts and output dry

Electrical Connections182.3.1 Input Dry ContactsThere are several input dry contacts at the X3 slot.Figure 7 Input dry contacts2.3.2 Maintenance Bypas

Electrical Connections192.3.3 Battery Circuit Breaker Control InterfaceJ10 is the Battery Circuit Breaker (BCB) box interface.2.3.4 Output Dry Contact

Electrical Connections202.3.5 EPO Input—OptionalThe UPS has an Emergency Power Off (EPO) function operated by a button on the control panel or by a re

Battery Installation213.0 BATTERY INSTALLATION3.1 IntroductionIf using multiple sets of batteries connected in parallel to provide the required batter

iTABLE OF CONTENTSIMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1GLOSSA

Battery Installation223.3 External Battery Cabinet Installation3.3.1 Battery CabinetsFigure 10 Battery cabinets for Liebert NXThe same model battery c

Battery Installation233.3.2 Connecting the BatteriesIf the Liebert NX battery cabinets are installed on a raised floor, the battery power cables and c

Battery Installation24Figure 12 Battery tray and supports3.3.4 Connecting the Battery Cabinet to the UPSAfter the battery cabinet equipment has been p

Battery Installation253.6 Alber Monitoring System—OptionalThe Liebert matching battery cabinet allows installing an optional Alber Battery monitoring

Options264.0 OPTIONS4.1 Load Bus SynchronizationThe Load Bus Synchronizer (LBS) keeps the output of two independent UPS systems or parallel UPS system

Options27Figure 14 Load Bus Synchronization cable connection with multi-module systemsThe LBS function is activated with configuration software; when

Options28Figure 15 Parallel system block diagramFigure 16 Paralleling cabinet with input and bypass circuit breakersUPS Module 2UPS Module 3UPS Module

Options29Figure 17 Paralleling cabinet with input, bypass and distribution circuit breakers4.2.3 Operating PrinciplesRedundancy ParallelingThe paralle

Options304.3 Installing Parallel SystemThe basic installation procedure of parallel system is the same as that of single module system. The following

Options31Figure 18 Connecting system parallel control cablesAuxiliary Dry Contact CablesThe external output breaker of each UPS must have Normally Ope

ii3.4 Non-Standard Batteries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243.5 BCB Shu

Options324.3.6 Emergency Power Off (EPO)The external emergency stop facility is identical to that described for the single unit installation—that an i

UPS Specifications335.0 UPS SPECIFICATIONSThese specifications describe requirements for the Liebert NX UPS.5.1 Conformity and StandardsThe UPS has be

UPS Specifications345.4 UPS Electrical Characteristics Table 8 UPS terminalInput (For Single-Input Unit)UnitRatingNominalInputCurrentMaximumInputCurre

UPS Specifications355.4.1 Input RectifierBatteryUnitRatingNominalDischargeCurrentMaximumDischargeCurrentOCPDeviceRatingBoltSizeMaximum Recommended Lug

UPS Specifications365.4.2 DC Intermediate CircuitSee Table 8 for current ratings.5.4.3 Inverter OutputSee Table 8 for current ratings.Table 11 Liebert

UPS Specifications375.4.4 Bypass InputTable 14 Bypass inputRated Power, kVA 40 60 80 100 120 160 200Rated voltage, VAC 480Supply 3-phase, 3-wire plus

Installation Drawings386.0 INSTALLATION DRAWINGSThe diagrams in this section illustrate the key mechanical and electrical characteristics of the Liebe

Installation Drawings39Figure 22 Liebert NX 40-120V dimensions continued—top and bottom view 113.5(4.5")150(5.9")150(5.9")987.1(38.9&qu

Installation Drawings40Figure 23 Liebert NX 40-120kVA main components—typical unitMonitorBoardIntellislotCommunicationPortsReplaceableAir FiltersFRONT

Installation Drawings41Figure 24 Liebert NX 160-200kVA dimensional view—front and left sideFRONT VIEW LEFT VIEW1239mm (48.8")979mm (38.5")20

iii8.10 Current Date and Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 728.11 UPS

Installation Drawings42Figure 25 Liebert NX 160-200kVA dimensions continued—top and bottom viewBOTTOM VIEWTOP VIEWFront of UPSFront of UPS1239mm (48.7

Installation Drawings43Figure 26 Liebert NX 160-200kVA main components—typical unitMonitorBoardIntellislotCommunicationPortsReplaceableAir FiltersPara

Installation Drawings44Figure 27 Liebert NX 40-120kVA cable connectionsNOTES1. All dimensions are millimeters (in.).2. Top and bottom cable entry avai

Installation Drawings45Figure 28 Liebert NX 160-200kVA cable connectionsDC BusMain InputBusBypassInput Bus(Dual Input)OutputBusO 10mm(0.394")DETA

Installation Drawings46Figure 29 Outline drawing, 33" battery power pack system, single cabinet169.5 (6.7)372.7 (14.7)575.9(22.7)779.1(30.7)172.1

Installation Drawings47Figure 30 Terminal details, 33" battery power pack system, single cabinet Liebert NXNOTES:1. All dimensions are in millime

Installation Drawings48Figure 31 Outline drawing, 49" battery power pack system, single cabinetFRONTFRONTRIGHT SIDESECTION A-A(Plan View)LEVELER

Installation Drawings49Figure 32 Terminal details, 49" battery power pack systemDetail BTop View(without BCB Cover Plate)BADetail APositive(+)Neg

Installation Drawings50Figure 33 Liebert NX 160-200kVA UPS to 49" battery cabinet interconnectionCCCAANX 160-200KVA UPS ModuleFront View49"

Installation Drawings51Figure 34 Liebert NX 40-120kVA UPS to 33" battery cabinet interconnectionNOTES:1. All cables must be repositioned prior to

iv11.0 SPECIFICATIONS AND TECHNICAL DATA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9111.1 Lug Size and Torque Requir

Installation Drawings52Figure 35 Outline drawing, Liebert NX 480V 33" parallel cabinetTopRight Side845(33.2)965(38)Front2000(78.7)NOTE:1. All dim

Installation Drawings53Figure 36 Outline drawing, Liebert NX 480V 49" parallel cabinet2000(78.7)Front965(38)1240(48.8)TopRight SideNOTE:1. All di

Installation Drawings54Figure 37 Liebert NX 480V paralleling cabinet with input and bypass circuit breakers, main componentsFrontRearSystem OutputTie

Installation Drawings55Figure 38 Liebert NX 480V paralleling cabinet main components—input, bypass and distribution circuit breaker configurationFront

Installation Drawings56Figure 39 Main component location drawing Liebert NX 480V, CB2, CB3, CB4 configurationsSystemBypassKirk-KeyFuseDisconnectSystem

Installation Drawings57Figure 40 Liebert NX 480V 40-120kVA UPS to Paralleling Cabinet Interconnection—Configuration BB0, FB0, KB0 parallel connection

Installation Drawings58Figure 41 Interconnecting details for Liebert NX 40-120kVA UPS to paralleling cabinet with input, bypass and distribution circu

Installation Drawings59Figure 42 Lineup detail—Configuration CB2, CB3, CB4 parallel connection to Liebert NXC1-C4E1-E4B1-B4C1-C4G1-G4H1-H4DE1-E4FFRONT

Installation Drawings60Figure 43 Line-up detail, bolt together description, 40-120 kVA Liebert NXRemovewhen cabinetsare to be boltedtogetherDETAIL AAU

Operation617.0 OPERATION7.1 General DescriptionLiebert’s NX provides continuous, high-quality AC power to your business-critical equipment, such as te

vFigure 39 Main component location drawing Liebert NX 480V, CB2, CB3, CB4 configurations . . . . . . . . . 56Figure 40 Liebert NX 480V 40-120kVA UPS

Operation627.1.1 Bypass SuppliesThe Liebert NX contains an electronically controlled switching circuit that enables the critical load to be connected

Operation63Maintenance ModeFor maintenance or repair, the Liebert NX may be operated in maintenance mode. To place the Lie-bert NX in maintenance mode

Operator Control and Display Panel648.0 OPERATOR CONTROL AND DISPLAY PANEL8.1 Operator Control PanelThe control panel and LCD on the front of the Lieb

Operator Control and Display Panel658.2 Mimic Display IndicatorsThe Mimic display on the front panel consists of six indicators arranged in a single-l

Operator Control and Display Panel668.3 Control ButtonsThe Control Buttons on the front panel may be used to shut down the UPS completely, turn the in

Operator Control and Display Panel678.4 Audible BuzzerThe buzzer produces three types of sounds:• Single beep - when any control button is pressed• Si

Operator Control and Display Panel688.6 Navigation KeysThe navigation keys on the front panel—F1 through F4 and Help—are used to access the LCD to vie

Operator Control and Display Panel698.8 LCD Menus and Data ItemsThe LCD menus provide access to the following categories of information and settings f

Operator Control and Display Panel70Table 19 Descriptions of UPS menus and data window itemsMenu Type Item Type ExplanationMains (input)L-N current (A

Operator Control and Display Panel718.9 Language SelectionThe LCD menus and data display are available in 12 languages (Chinese, Dutch, English, Frenc

viTABLESTable 1 Input dry contacts at X3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operator Control and Display Panel728.10 Current Date and TimeTo change the system date and time:• From the main menu, press the F1 (shift) key to mov

Operator Control and Display Panel738.11 UPS Status MessagesThe Liebert NX displays status changes as they occur in the current status window of the L

Operator Control and Display Panel748.12 Types of LCD ScreensThis section provides a quick guide to the main types of LCD screens.8.12.1 Opening Displ

Operator Control and Display Panel758.12.3 UPS Help ScreenPress the HELP key below the LCD to display the Help window shown in Figure 57. (Press the H

Operator Control and Display Panel768.13 Pop-Up WindowsPop-up prompt windows appear when the user must confirm a choice or perform an operation. This

Operating Instructions779.0 OPERATING INSTRUCTIONS9.1 Liebert NX Operating ModesThe Liebert NX can operate in any of four modes, as shown in Table 20.

Operating Instructions789.1.1 Circuit BreakersThe UPS can be isolated by means of circuit breakers, mounted inside the cabinet and accessible after op

Operating Instructions79After initialization, the bypass SCR closes. Because the output circuit breaker is still open, the UPS channels power through

Operating Instructions809.2.2 Verify Switching Between Operation ModesSwitch from Normal Mode to Battery Mode• Open CB1 to enter battery mode. This br

Operating Instructions819.4 Auto RestartWhen the main and bypass sources fail, the UPS draws power from the battery system to supply the load until th

1IMPORTANT SAFETY INSTRUCTIONSSAVE THESE INSTRUCTIONSThis manual contains important instructions that should be followed during installation of your L

Operating Instructions829.7 Battery Protection9.7.1 Battery Undervoltage Pre-WarningBefore the end of discharge, the Liebert NX displays a Low Battery

Operating Instructions839.8.2 Inserting One Module into a Multi-Module SystemThis procedure outlines how to integrate a UPS module that has been previ

Operating Instructions849.8.3 Shutdown Procedure—Complete UPS and Load ShutdownThis procedure must be followed to completely power down the UPS and th

Options8510.0 OPTIONSSeveral items of optional equipment are available for connection to the Liebert NX UPS.10.1 Communication and Other User Terminal

Options8610.1.4 Communication and MonitoringLiebert IntelliSlot Web Card - SNMP/HTTP Network Interface CardThis network interface card provides all re

Options87Figure 62 Liebert IntelliSlot Web card display

Options88Relay CardThe relay card provides voltage-free contact closures for remote monitoring of alarm conditions.Delivering On Battery, On Bypass, L

Options89MultiPort 4 CardThe MultiPort 4 card provides four sets of voltage-free contact closures for remote monitoring of alarm conditions UPS operat

Options9010.2 LBS Mode—Load Bus SynchronizationThe function of LBS is to keep the output of two independent UPS systems (single unit or multiple unit)

Specifications and Technical Data9111.0 SPECIFICATIONS AND TECHNICAL DATA11.1 Lug Size and Torque RequirementsUse commercially available solderless lu