Liebert NX UPS System user manual General, X23 X24 Monitor Board, X21, X22

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UPS Multi-Module Installation

3.0UPS MULTI-MODULE INSTALLATION

3.1General

The installation of a multi-module UPS configuration must follow the installation procedure for a sin- gle UPS module with the additional requirements detailed in this chapter.

In addition to the local EPO push button on the front panel of the UPS module (that stops operation of that module), the UPS supports also a remote emergency stop to permit simultaneous multi-module shutdown.

NOTES

1. The remote emergency power off switch must be voltage-free and Normally Open or Normally Closed.

2.The open voltage supplied is 12VDC, < 20mA

3.This external emergency stop may be supplied with a second set of contacts that can be used to trip incoming mains or bypass supply circuit breakers supplied by others and fitted with remote trip units.

4.Normally Closed EPO - X2: 1&2, these terminals are supplied factory-linked on the monitor board.

Figure 13 Emergency power off connections

UPS2

X2:3

X2:4 Monitor Board

X2:3	Monitor Board
X2:4

UPS1

EPO

UPS2

X2:1	Monitor Board
X2:2

	X2:1	Monitor Board
	X2:2	Monitor Board
	X2:2

UPS1

EPO

26

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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