Operation Modes, Normal mode | Liebert UPS System manual

Chapter 1 Introduction

		Front view
1:Fan	2:rectifier	3: softstart relays	4:contactor
5: two auxiliary power supply boards ULW2L61M5
6: D level lightning protection device SPD12Z			7: Hall current sensor
8:battery input terminals			9:circuit breaker Q3BP for maintenance
10:rectifier input circuit breaker Q1			11:bypass input circuit breaker Q2
12:Inverter			13: fast fuse
14: parallel board ULW2L61M3			15: EMI board ULW2L61M4
16: magnetic core			17: output circuit breaker
18:operation keypad board			19: LCD
20: monitoring board ULW2L61U2			21: Battery EMI board
22: Fuse NT100			23: 4 leveling feet (M20)
		Figure 1-4 Components of 40/60kVA UPS

1.5 Operation Modes

1. Normal mode

When the utility is normal, the UPS powers the load through the rectifier and inverter and charges the batteries at the same time, as shown in Figure 1-5. This is called the Normal Mode.

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Liebert UPS System user manual Operation Modes, Normal mode

Contents

Liebert iTRUST UPS System Page Contents Page Error! Bookmark not defined Page Configuration Basics Operation Theory Main circuit of UPS Structure and Layout Components of 20/30kVA UPS Normal mode Operation Modes Battery Mode Bypass Mode ECO Mode Maintenance Mode Parallel 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 Hoisting the UPS TransportationPositioning of UPS Transportatio with Forklift Fixed position without a base Fixed cabinet position on a base Cable Access Install the UPS on a support rack Ventilation UPS top cable output One UPS cabinet and several battery cabinets One UPS cabinet and one battery cabinetLayout of Cabinet 12 Layout Page Selection of cables Selection of power cablesCalculation of current of power cables Current carrying capacity of cables Cable connections Selection of signal cablesPower cables Cabling layout Cable routing 20/30kVA UPS bottom cable output Cable connection Power cable connection of One branch utility source Routing the signal cable Signal cableEarthing Method Layout of signal cables of 20/30/40/60kVA UPS Connection method RS232 Serial Port Connection of modem Connection of input and output voltage free contacts 12 RS485 Port BLV-C Connector Name of contacts Board name Input/output Battery Temperature detection cable Connection of Single UPS SystemPage Explanation of Circuit Breakers Startup ProcedureStartup Setting the functions Function Setup Menu UL33-0400L 125030 Inv. On Units Out Functional checks Modem RS232 Switching between operation mode Check the function of the display panel Commissioning of UPS Display panel Layout of Display Panel LED Indication Function Dividing Functional Keys Menu key Alarm BuzzerLCD and Menu Keys LCD UL33-0400L 123020 Main Menu Display Displayed informationOpening display UPS Basic Information Menu Keys Display Window Display Menu Information of main menu Shift keyF1 display UL33-0400L Local Batt. Temp. C 23.2 System Batt. Boost Charging Chinese Function Setup Language setup Address setup Time setup UL33-0400L 125030 Inv. On Units Out 27 Setup the date Manual battery self-test 29 Setup the date Contrast adjustment History log Background communication setup 33 History log Call-back number setup Modem RS232 Battery low 39 Call-back number setup Prompt window 12.5 UL33-0400L 123020 Inv. On Units Mains Power Events and State Information 44 Load capacity exceed that of single module UPS system UPS Events UPS states State Reason Start up Setup proceduresStart from utility Shutdown in battery mode Shutdown in normal modeShutdown in bypass mode Shutdown in ECO mode Shutdown in United powering mode Emergency shutdown and recoveryTransferring between operation modes Fault clear Mute Monitoring system Monitoring single UPS Monitoring parallel operation system Output dry contact Input and output contactsInput contacts Daily maintenance MaintenanceTemperature measuring Daily checking Weekly checking Annual checking Battery storage Battery maintenanceOther checking Manual battery self-test Auto battery self test Shutdown maintenance Procedures UPS system troubleshootingLED indicator Basics Buzzer alarm LED indicator of lightning protection device LCD 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 Paralleling for Capacity Expansion Series Hot-Standby parallel system Series backup mode Operation modes Parallel operation system with two UPS units InstallationCabinet installation Parallel operation system with multi UPS units Power cables Electrical installationSignal cables External Power Distribution Start up of Parallel Operation System Using the Parallel Operation System Switch on the Parallel System Start from battery Shutdown the Parallel Operation System Shutdown in united operation mode Normal mode to battery mode Bypass mode to normal mode Repairing the failed UPS unit in parallel operation systemNormal mode to bypass mode Battery mode to normal mode Emergency shutdown Fault and Fault Process Methods UPS Battery Capacity selection Battery cabinet External Dimensions Installation of battery cabinet Wiring of the batteries Battery layout inside battery cabinet 105 Snmp Card and the Software Technical featuresProduct structure and ports Network Software Modem Temperature sensor TMP12Z Level C Lightning Protection System SPD24Z Installation procedures of SPD24Z Introduction of SPD24Z User Bypass Isolation Transformer Using and MaintenanceMaintenance Ambient condition Service after Sales Abnormal Fault Handling Service after Sales Chapter Service after Sales Warranty