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Liebert UPS System user manual Installation, Cabinet installation

Models: UPS System

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Chapter 8 Parallel System

Maintenance mode: The condition to transfer to maintenance mode is same with that of single module UPS system. The maintenance switches should be switched on synchronously as possible. Thus the system can be repaired without interrupting the power supply to load.

8.2 Installation

The installation method of parallel operation system is the same with that of single module UPS system. The following contents only introduce the installation procedures relating to parallel operation system.

8.2.1Cabinet installation

1.Parallel operation system with two UPS units

The layout of 40/60 kVA UPS system is shown in Fig.8-5. Two UPS units are placed in the middle side by side. Each battery cabinet is placed next to the UPS unit. The battery cabinet should be placed in front of or behind the UPS cabinet if considering capacity expansion.

The layout of 20/30 kVA UPS system is the same with that of 40/60kVA UPS.

battery cabinet 1

UPS cabinet 1

UPS cabinet 2

battery cabinet 2

Fig. 8-5 40/60KVA UPS Layout

2. Parallel operation system with multi UPS units

Please place the battery cabinet in front of or behind the UPS cabinet for shorten the battery cables and battery temperature sampling cables and for convenient capacity expansion.

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Liebert UPS System user manual Installation, Cabinet installation, Parallel operation system with two UPS units

Contents

Liebert iTRUST UPS System Page Contents Page Error! Bookmark not defined Page Basics ConfigurationMain circuit of UPS Operation TheoryComponents of 20/30kVA UPS Structure and LayoutOperation Modes Normal modeBypass Mode Battery ModeMaintenance Mode ECO ModeParallel Operation mode United Power ModeDual Input Mode Basic Functions SpecificationsFunctional Parameters Parameters of Liebert iTrust UPS are given in -1 LCD+LED Electrical Parameters Page Environmental Conditions DimensionsUnpacking Fixing holes 40/60kVA UPS Outline Dimension Positioning of UPS TransportationHoisting the UPS Transportatio with ForkliftFixed cabinet position on a base Fixed position without a baseInstall the UPS on a support rack Cable AccessUPS top cable output VentilationOne UPS cabinet and several battery cabinets One UPS cabinet and one battery cabinetLayout of Cabinet 12 Layout Page Calculation of current of power cables Selection of power cablesSelection of cables Current carrying capacity of cablesPower cables Selection of signal cablesCable connections Cabling layout20/30kVA UPS bottom cable output Cable routingCable connection Power cable connection of One branch utility source Routing the signal cable Signal cableEarthing Method Connection method Layout of signal cables of 20/30/40/60kVA UPSRS232 Serial Port Connection of modem 12 RS485 Port Connection of input and output voltage free contactsBLV-C Connector Name of contacts Board name Input/output Connection of Single UPS System Battery Temperature detection cablePage Explanation of Circuit Breakers Startup ProcedureStartup Function Setup Menu Setting the functionsUL33-0400L 125030 Inv. On Units Out Modem RS232 Functional checksCheck the function of the display panel Switching between operation modeCommissioning of UPS Layout of Display Panel Display panelFunction Dividing LED IndicationFunctional Keys LCD and Menu Keys Alarm BuzzerMenu key LCDUL33-0400L 123020 Opening display Displayed informationMain Menu Display UPS Basic InformationDisplay Menu Menu Keys Display WindowShift keyF1 display Information of main menuUL33-0400L Local Batt. Temp. C 23.2 System Batt. Boost Charging Chinese Language setup Function SetupTime setup Address setupUL33-0400L 125030 Inv. On Units Out 27 Setup the date 29 Setup the date Manual battery self-testHistory log Contrast adjustment33 History log Background communication setupModem RS232 Call-back number setupBattery low Prompt window 39 Call-back number setup12.5 UL33-0400L 123020 Inv. On Units Mains Power 44 Load capacity exceed that of single module UPS system Events and State InformationUPS Events UPS states State Reason Start up Setup proceduresStart from utility Shutdown in bypass mode Shutdown in normal modeShutdown in battery mode Shutdown in ECO modeShutdown in United powering mode Emergency shutdown and recoveryTransferring between operation modes Mute Fault clearMonitoring system Monitoring parallel operation system Monitoring single UPSOutput dry contact Input and output contactsInput contacts Temperature measuring MaintenanceDaily maintenance Daily checkingAnnual checking Weekly checkingBattery storage Battery maintenanceOther checking Auto battery self test Manual battery self-testShutdown maintenance LED indicator UPS system troubleshootingProcedures BasicsLED indicator of lightning protection device Buzzer alarmLCD indication for fault information No.1 Fault description Reason Actions to be taken No.1 Fault description Reason Actions to be taken UPS System Introduction Features of parallel systemsConditions for parallel operation Parallel System consisting of two units Theory of OperationParalleling for Redundancy of more than two units Series Hot-Standby parallel system Paralleling for Capacity ExpansionOperation modes Series backup modeCabinet installation InstallationParallel operation system with two UPS units Parallel operation system with multi UPS unitsPower cables Electrical installationSignal cables Start up of Parallel Operation System External Power DistributionSwitch on the Parallel System Using the Parallel Operation SystemShutdown the Parallel Operation System Start from batteryNormal mode to battery mode Shutdown in united operation modeNormal mode to bypass mode Repairing the failed UPS unit in parallel operation systemBypass mode to normal mode Battery mode to normal modeEmergency shutdown Fault and Fault Process Methods UPS Capacity selection BatteryExternal Dimensions Battery cabinetWiring of the batteries Installation of battery cabinetBattery layout inside battery cabinet 105 Snmp Card and the Software Technical featuresProduct structure and ports Modem Network SoftwareLevel C Lightning Protection System SPD24Z Temperature sensor TMP12ZIntroduction of SPD24Z Installation procedures of SPD24ZUser Maintenance Using and MaintenanceBypass Isolation Transformer Ambient conditionAbnormal Fault Handling Service after SalesService after Sales Chapter Service after Sales Warranty