Liebert NX UPS System user manual Battery Power Cables, Connection Principles, Item # Item Name

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Battery Installation

Figure 11 Battery cabinet, bottom entry

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AMNXE0NBCSL4BT

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Item #	Item Name

1	Grille steel

2	Grille steel

3	Middle pillar

4	Cover module BC Small NXe

5	Ground bus

6	Captive nut M4

7	Captive nut M6

8	Screw flange M6x16

9	Nut flange M6

10	Screw M6x16 countersink

11	Spring washer M4

12	Flat washer M4

13	Screw mushroom head cross M4x12

2.4Battery Power Cables

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2.4.1Connection Principles

The following notes, in conjunction with the diagrams, illustrate the broad principles to be followed when fitting and connecting the majority of battery installations.

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Contents Liebert NX UPS Page Table of Contents UPS MULTI-MODULEINSTALLATION Dual Bus SystemOperating Procedures OPTIONS-FORASSEMBLY Inside the UPS CabinetTechnical Specifications Operator Control Panel and DisplayFigures Tables Feature Set for Region Input OutputAust/NZ Options Model IdentificationSafety Precautions Conformity and StandardsUser-Serviceable Parts Battery Voltage Exceeds 400VDCIntroduction Preliminary ChecksExternal Battery Room LocationUPS Room StoragePositioning System Cabinets2 10 to 30kVA UPS Moving the CabinetsExternal Protective Devices UPS Output External BatteryEarth Leakage RCD Distance from floor to connection point on the equipment Power CablesMaximum steady state AC and DC currents Cable Termination Common Input ConnectionsOutput System Connections Monitor Board Features Control Cables and CommunicationX3 Ancillary Control and Alarms Maintenance Bypass Cabinet InterfaceDry Contacts Input Dry ContactsExternal Circuit-Breaker Interface Jumper connection for BCB interfaceOutput Dry Contacts Output dry contact relays+12V J13 J21 J28Emergency Power Off Input X5 Auxiliary DC Power OutputX7 External Battery Temperature Detector Interface X6 Analog Input InterfaceExternal Bypass Switch Interlock Battery Start FacilityBattery Start Button Serial Ports RS232-1 and RS232-2Battery Installation Safety Hazardous battery voltage present behind coversBattery Cabinet Battery Temperature Sensor Optional Moving the Battery CabinetsCable W2 is packed with the temperature sensor Name W2 L=5m Name W1 L=30mBattery cabinet bottom cable entry location General Arrangement DrawingsBottom cable entry Battery cabinet internal layout Item # Item Name Battery Power CablesConnection Principles Battery Control Connecting the BatteryBattery Room Design Fitting the BatteriesGeneral X23 X24 Monitor BoardX24 X21Distribution Cabinet Cabinet InstallationParalleled UPS Modules Power Cables External Protective DevicesHot-Standby UPS Modules Control Cables Intermodule ControlInput Distribution Upstream Dual Bus System Control Wires Extended Dual Bus Synchronization Option DBS Interface BoxParallel 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 Static Transfer Switch Battery Temperature CompensationSocket Outlet Redundant Control Power Supply BoardMulti Module UPS-1+N Modes of Operation Bypass Mode Maintenance Mode Manual BypassECO Mode Single UPS Only Parallel Redundancy Mode System ExpansionNormal Function Battery Management-Set During CommissioningBattery Protection settings by commissioning engineer UPS operating modes Power SwitchesRotary switch configurations UPS Startup Start-Up ProcedureIndicator State Verify Switching Between Operation Modes Switching the UPS from Normal to Maintenance Bypass Powering Down the UPSPowering Down the UPS and Maintaining Power to Load Emergency Shutdown With EPO Auto RestartChanging the Current Date and Time Command PasswordLanguage Selection Isolating One Module in a Multi-Module System Inserting One Module into a Multi-Module System LED Function StatusButton Function UPS control and display panel componentsComponent # Function Mimic Power Flow Audible Alarm BuzzerMenu key Icons and their meaning Direct Access Push Buttons KeysLCD Monitor and Menu keys Load System Battery Records Language Settings Command VersionWhen configured, input transformer voltages are Displayed on the front LCD. When not activated,Detailed Description of Menu Items UPS system windowDescriptions of UPS menus and data window items Menu Type Item Type ExplanationNumber to be dialed to send an alarm notification UPS messages Message Description / Suggested Action if anyBypass voltage exceeds the limit UPS is confirmed to overload and the overload times out UPS messages Dynamic Energy Flow Chart and UPS Help Screen Prompt Pop-Up WindowsPrompt windows, meanings Prompt MeaningDefault Screen Saver Default screenTerminal Name Definition Battery Ground Fault DetectionProtection Redundant Fan for Power Module Fan120Fan120 AC FanOC Web Card SNMP/HTTP Network Interface Card OC Web Card data summary windowRelay Card pin configuration Relay CardMultiport-4 Card Relay card jumpersPin Description SiteNet MultiPort4 Intellislot pin assignmentAssignment Remote Alarm Monitor OC485 Web Card Modbus, Jbus, IGM NetDust filter replacement Dust Filter for 10-30kVAEnvironmental characteristics Conformity and StandardsCompliance with European, international standards Overall efficiency, heat losses and air exchangeMechanical characteristics Rectifier AC input mainsInverter output to critical load Bypass mains input Technical Specifications Technical Specifications Page Ne t ItiTi n That