Liebert NX UPS System user manual User-Serviceable Parts, Battery Voltage Exceeds 400VDC

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User-Serviceable Parts

All equipment maintenance and servicing procedures involving internal access requires the use of a tool and should be carried out only by trained personnel. There are no user-serviceable parts behind covers requiring a tool for removal.

This UPS is fully compliant with safety regulations for equipment located in an operator accessible area. Hazardous voltage is present within the UPS and battery enclosure but out of reach of non-ser- vice personnel. Contact with hazardous voltage is minimized by housing live parts behind safety pan- els that require a tool for their removal. No risk exists to any personnel when operating the equipment in the normal manner, following the recommended operating procedures.

Battery Voltage Exceeds 400VDC

All physical battery maintenance and servicing requires the use of a tool or a key and should be car- ried out only by trained personnel.

! WARNING

Special care should be taken when working with the batteries associated with this equipment.

When connected together, the battery terminal voltage will exceed 400VDC and is potentially lethal.

Battery manufacturers supply details of the necessary precautions to be observed when working on, or in the vicinity of, a large bank of battery cells. These precautions should be followed implicitly at all times.

Attention should be paid to the recommendations concerning local environmental conditions and the provision of protective clothing, first aid and fire-fighting facilities.

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Contents Liebert NX UPS Page Table of Contents UPS MULTI-MODULEINSTALLATION Dual Bus SystemTechnical Specifications Operating ProceduresOPTIONS-FORASSEMBLY Inside the UPS Cabinet Operator Control Panel and DisplayFigures Tables Aust/NZ Feature Set for Region InputOutput Options Model IdentificationSafety Precautions Conformity and StandardsUser-Serviceable Parts Battery Voltage Exceeds 400VDCIntroduction Preliminary ChecksUPS Room External Battery RoomLocation Storage2 10 to 30kVA UPS PositioningSystem Cabinets 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 Cable Termination Common Input ConnectionsOutput System Connections Monitor Board Features Control Cables and CommunicationDry Contacts X3 Ancillary Control and AlarmsMaintenance Bypass Cabinet Interface Input Dry ContactsExternal Circuit-Breaker Interface Jumper connection for BCB interface+12V J13 J21 Output Dry ContactsOutput dry contact relays J28X7 External Battery Temperature Detector Interface Emergency Power Off InputX5 Auxiliary DC Power Output X6 Analog Input InterfaceBattery Start Button External Bypass Switch InterlockBattery Start Facility Serial Ports RS232-1 and RS232-2Battery Installation Safety Hazardous battery voltage present behind coversBattery Cabinet Cable W2 is packed with the temperature sensor Battery Temperature Sensor OptionalMoving the Battery Cabinets Name W2 L=5m Name W1 L=30mBattery cabinet bottom cable entry location General Arrangement DrawingsBottom cable entry Battery cabinet internal layout Connection Principles Battery Power CablesItem # Item Name Battery Room Design Battery ControlConnecting the Battery Fitting the BatteriesX24 GeneralX23 X24 Monitor Board X21Paralleled UPS Modules Cabinet InstallationDistribution Cabinet Power Cables External Protective DevicesHot-Standby UPS Modules Control Cables Intermodule ControlInput Distribution Upstream Dual Bus System Parallel Board X2-2 X1-1 Parallel System Control WiresExtended Dual Bus Synchronization Option DBS Interface Box 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 CompensationMulti Module UPS-1+N Redundant Control Power Supply BoardSocket Outlet Modes of Operation ECO Mode Single UPS Only Bypass ModeMaintenance Mode Manual Bypass 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 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 RestartLanguage Selection Command PasswordChanging the Current Date and Time Isolating One Module in a Multi-Module System Inserting One Module into a Multi-Module System LED Function StatusComponent # Function UPS control and display panel componentsButton Function Mimic Power Flow Audible Alarm BuzzerLCD Monitor and Menu keys Direct Access Push Buttons KeysMenu key Icons and their meaning When configured, input transformer voltages are Load System Battery RecordsLanguage Settings Command Version Displayed on the front LCD. When not activated,Descriptions of UPS menus and data window items Detailed Description of Menu ItemsUPS system window 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 Prompt windows, meanings Dynamic Energy Flow Chart and UPS Help ScreenPrompt Pop-Up Windows Prompt MeaningDefault Screen Saver Default screenProtection Battery Ground Fault DetectionTerminal Name Definition Fan120 Redundant Fan for Power ModuleFan120 AC FanOC Web Card SNMP/HTTP Network Interface Card OC Web Card data summary windowMultiport-4 Card Relay Card pin configurationRelay Card Relay card jumpersAssignment SiteNet MultiPort4 Intellislot pin assignmentPin Description Remote Alarm Monitor OC485 Web Card Modbus, Jbus, IGM NetDust filter replacement Dust Filter for 10-30kVACompliance with European, international standards Environmental characteristicsConformity and 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 Ti n Ne tIti That