Liebert NX UPS System Positioning, System Cabinets, 2 10 to 30kVA UPS, Moving the Cabinets

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Single Module UPS Installation

1.4Positioning

The cabinet is mounted on four castor-wheels for ease of positioning and for short distance movement. Jacking feet are provided to prevent the UPS from moving once it has been wheeled to its final posi- tion.

For optimal design life, the place chosen must offer:

•Easy connection

•Enough space to easily work on the UPS

•Sufficient air exchange of enough to dispel heat produced by UPS

•Protection against atmospheric agents

•Protection against excessive humidity and very high heat sources

•Protection against dust

•Compliance with the current fire prevention requirements

•Operating environment temperature between 20°C and 25°C (68 and 77°F). The batteries are at maximum efficiency in this temperature range (see Table 30).

The UPS cabinet is constructed around a steel chassis with removable panels. The top and side panels are secured to the chassis by screws.

Access to the power terminals, auxiliary terminals blocks and power switches is from the front. Oper- ational status and alarm information is provided through the front door operator control panel. Mod- els 30kVA and below house both the power components and an internal battery. Cooling air enters the front of the NX and is exhausted out the rear.

1.4.1System Cabinets

A UPS may comprise a number of cabinets, depending on the design requirements (e.g., UPS cabinet, external battery cabinet, external bypass cabinet). In general, all the Liebert cabinets used in a particu- lar installation are of the same height and designed to be positioned side-by-side to form a matching array.

Refer to 4.0 - Installation Drawings for assistance on positioning the cabinets described below.

1.4.210 to 30kVA UPS

The UPS consist of a single cabinet, which uses typically forty (40) 12V battery blocks, fitted inter- nally and connected in series to provide a nominal battery voltage. The UPS may be shipped without the batteries fitted.

An extended battery option is available. This comprises a separate cabinet containing additional bat- teries that can be connected to the UPS to increase its battery run time.

1.4.3Moving the Cabinets

! WARNING

Ensure that any equipment used to move the UPS cabinet has sufficient lifting capacity.

The UPS is fitted with casters. Take care to prevent the NX from moving when unbolting the unit from its shipping pallet. Ensure that adequate personnel and lifting aids are available when removing the shipping pallet.

Ensure that the UPS weight is within the designated surface weight loading of any handling equip- ment. See Table 32.

UPS and optional cabinets (battery cabinets, top cable entry cabinets, etc.) can be handled by means of a forklift or similar equipment.

The UPS cabinet also can be moved short distances by its casters.

NOTE

Care must be taken when maneuvering units fitted with batteries. Keep such moves to a minimum.

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Contents Liebert NX UPS Page Table of Contents Dual Bus System UPS MULTI-MODULEINSTALLATIONOPTIONS-FORASSEMBLY Inside the UPS Cabinet Operating ProceduresTechnical Specifications Operator Control Panel and DisplayFigures Tables Output Feature Set for Region InputAust/NZ Options Model IdentificationConformity and Standards Safety PrecautionsBattery Voltage Exceeds 400VDC User-Serviceable PartsPreliminary Checks IntroductionLocation External Battery RoomUPS Room StorageSystem Cabinets Positioning2 10 to 30kVA UPS Moving the CabinetsExternal Protective Devices Earth Leakage RCD External BatteryUPS Output Maximum steady state AC and DC currents Power CablesDistance from floor to connection point on the equipment Common Input Connections Cable TerminationOutput System Connections Control Cables and Communication Monitor Board FeaturesMaintenance Bypass Cabinet Interface X3 Ancillary Control and AlarmsDry Contacts Input Dry ContactsJumper connection for BCB interface External Circuit-Breaker InterfaceOutput dry contact relays Output Dry Contacts+12V J13 J21 J28X5 Auxiliary DC Power Output Emergency Power Off InputX7 External Battery Temperature Detector Interface X6 Analog Input InterfaceBattery Start Facility External Bypass Switch InterlockBattery Start Button Serial Ports RS232-1 and RS232-2Battery Installation Hazardous battery voltage present behind covers SafetyBattery Cabinet Moving the Battery Cabinets Battery Temperature Sensor OptionalCable W2 is packed with the temperature sensor Name W2 L=5m Name W1 L=30mGeneral Arrangement Drawings Battery cabinet bottom cable entry locationBottom cable entry Battery cabinet internal layout Connection Principles Battery Power CablesItem # Item Name Connecting the Battery Battery ControlBattery Room Design Fitting the BatteriesX23 X24 Monitor Board GeneralX24 X21Paralleled UPS Modules Cabinet InstallationDistribution Cabinet External Protective Devices Power CablesControl Cables Intermodule Control Hot-Standby UPS ModulesInput Distribution Upstream Dual Bus System Extended Dual Bus Synchronization Option DBS Interface Box Control WiresParallel Board X2-2 X1-1 Parallel System Parallel Board DBS Cable X2-2 X1-1 Parallel SystemInstallation Drawings General arrangement-10-30kVA UPS module External Battery Input Output Main Input Bypass Input NXe 10-30kVA Top View Internal battery layout and connecting-GP12120 F2 12AH/12V Internal battery layout Split-Bypass Input Battery Temperature Compensation Static Transfer SwitchMulti Module UPS-1+N Redundant Control Power Supply BoardSocket Outlet Modes of Operation Maintenance Mode Manual Bypass Bypass ModeECO Mode Single UPS Only Parallel Redundancy Mode System ExpansionBattery Protection settings by commissioning engineer Battery Management-Set During CommissioningNormal Function Rotary switch configurations Power SwitchesUPS operating modes Indicator State Start-Up ProcedureUPS Startup Verify Switching Between Operation Modes Powering Down the UPS Switching the UPS from Normal to Maintenance BypassPowering Down the UPS and Maintaining Power to Load Auto Restart Emergency Shutdown With EPOLanguage Selection Command PasswordChanging the Current Date and Time Isolating One Module in a Multi-Module System LED Function Status Inserting One Module into a Multi-Module SystemComponent # Function UPS control and display panel componentsButton Function Audible Alarm Buzzer Mimic Power FlowLCD Monitor and Menu keys Direct Access Push Buttons KeysMenu key Icons and their meaning Language Settings Command Version Load System Battery RecordsWhen configured, input transformer voltages are Displayed on the front LCD. When not activated,UPS system window Detailed Description of Menu ItemsDescriptions of UPS menus and data window items Menu Type Item Type ExplanationNumber to be dialed to send an alarm notification Message Description / Suggested Action if any UPS messagesBypass voltage exceeds the limit UPS is confirmed to overload and the overload times out UPS messages Prompt Pop-Up Windows Dynamic Energy Flow Chart and UPS Help ScreenPrompt windows, meanings Prompt MeaningDefault screen Default Screen SaverProtection Battery Ground Fault DetectionTerminal Name Definition Fan120 Redundant Fan for Power ModuleFan120 AC FanOC Web Card data summary window OC Web Card SNMP/HTTP Network Interface CardRelay Card Relay Card pin configurationMultiport-4 Card Relay card jumpersAssignment SiteNet MultiPort4 Intellislot pin assignmentPin Description OC485 Web Card Modbus, Jbus, IGM Net Remote Alarm MonitorDust Filter for 10-30kVA Dust filter replacementConformity and Standards Environmental characteristicsCompliance with European, international standards Overall efficiency, heat losses and air exchangeRectifier AC input mains Mechanical characteristicsInverter output to critical load Bypass mains input Technical Specifications Technical Specifications Page Iti Ne tTi n That
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