Liebert Series 600T manual Input Power Failure Load On Battery, Input Power Fail Load on Battery

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3.2.4Input Power Failure (Load On Battery)

If the utility AC power source fails, or is outside the acceptable range, the battery plant becomes the power source for the UPS module inverters. The UPS system continues to supply power to the critical load, and also to the controls of the UPS modules and the SCC.

You can use the Battery Time screen at the UPS modules to monitor the present battery voltage compared to the shutdown value. The length of time the battery can sustain the load depends on the size of the load and the size and condition of the battery plant. The battery plant is usually large enough to supply a 100% rated load for 15 minutes.

Alarm messages that indicate battery status are Battery Discharge, Low Battery, and Battery Shutdown. The voltage limits for these alarms are displayed on the UPS module Alarm Limit Settings screen. These limits were selected for your installation by Liebert Global Services during initial start-up.

The battery block in the UPS module Monitor/Mimic Display indicates Charge or Discharge and the current in Amperes. Maximum battery discharge current ranges from 324 amps (for 150 kVA) to 1620 amps (for 750 kVA). Refer to the separate Installation Manual or drawings for specific data on your system.

Figure 51 Input Power Fail (Load on Battery)

RIB

RIB

RIB

BFB

UPS #3

UPS #2

UPS

#1

CB1

CB1

CB1

SBS

R

R

R

BIB

SBB

I

I

I

MBB

CB2

CB2

CB2

System

SKRU

Controls

Output MIB

										SCCT
			MBD							To Critical Load
										To Critical Load
						MBD				MBD
	Battery									SCCT
				Battery			Battery			SCCT
				Battery			Battery			(can accommodate up to 6 UPS modules)
										(can accommodate up to 6 UPS modules)

82	Operation	DISCONTINUED
		PRODUCT

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Contents Series 600T UPS DIS Product Table of Contents Manual Procedures Figures Tables Important Safety Instructions Overview of this Manual System Description Multi-Module UPS, 65-80 kVA left and 100-500 kVA rightProduct Multi-Module 500-750 kVA UPS Types of System Control Cabinets SCCs System Control Cabinets SCCsDesigned for Success ReliabilityOther Factors to Consider Safety Precautions Modes of Operation Operator Controls DIS Product Options General Component Descriptions System Control CabinetBattery Plant UPS ModuleDetailed Component Descriptions Controls HardwareFirmware Rectifier/ChargerInput Power Factor Battery Charging CircuitInput Circuit Breaker Isolation TransformerBattery Disconnect Battery Charge Current LimitingBattery Equalize Charge Circuit Operation After End-of-DischargeNon-Linear Load Characteristics Unbalanced Load CharacteristicsInverter Output Regulation and Overload PerformanceStatic Switch Isolation Static BypassFuse Protection Shorted SCR MonitoringPulsed Parallel Operation Load TransfersTransfer and Retransfer Conditions Automatic Transfers to BypassManual Transfers Transfer InhibitedManual Retransfers Redundant ModeRetransfer Inhibited Features Display Screen and Operator ControlsDescription Function System Control Cabinet Operator Controls Sccb Pictured Shutdown Procedures Description Location FunctionSwitches Behind SCC Control Panel Door Menu Tree Master Menu Screen WALK-IN Display modules onlyBattery Time modules only Load Transfer Procedures SCC onlyCustomer Alarm Definitions SCC only Input Metering Displays Monitor/Mimic Display ScreenOutput Metering Displays Status/Alarm Message Areas Item 7 Alarm MessagesItem 5 Module Status Messages Item 6 System Status MessagesModule Monitor/Mimic Display Screen Alarm Messages Item 5 Alarm MessagesMOD 1 on Line MOD 2 on Line MOD 3 on Line UPS Ratings UPS Input PWR UPS Ratings UPS Input PWR Bypass Input Load Bypass Input C-A Walk-In Display Screen Walk-In Display Screen During Start-UpStatus Reports Screens Status Reports ScreenPresent Status Select ExitEvent History Event History MODULE-0History Status History Status Report ScreensSCC ModuleBattery Cycle Monitor Module Only System StatusBattery Cycle Monitoring Summary Screen System Configuration Screens System ConfigurationDate Date ScreenTime Time ScreenAuto Dial DialModem Baud Rate Modem Baud RateMaximum Auto-Retransfer Attempts Retransfer AttemptsRemote Monitor Alarm Limit Settings Screen Alarm SettingsProduct Load Transfer Procedures Screen Refer to 3.3.2 Load Transfer Procedures for more detailsStart-Up Procedures Screen Refer to 3.3.1 Start-Up Procedure for more detailsModule Start- Up Procedures Screen Shutdown Procedures Screen Shutdown ProceduresModule Shutdown Procedures Screen Battery Time Screen Module Only VDCBattery Time Screen Example 45 Minute Discharge Range of Values for Calculated Battery Times Aining Rem Tim Calculated La p s e d T im e M in u te sMeter Calibration Screen UP Cursor UP Down Cursor Down Select ChooseBattery Equalize Screen Battery Equalize RechargingAlarm and Status Messages Module Status Messages 3 Modules ConnectedSystem Status Messages Load Block MessagesAbbreviations Used in Alarm Messages OF/UFDC Ground Fault Battery CB OpenPower BatteryManual Reset Static SwitchBypass Phase Control PowerAlarm Indications and Other Alarms That Activate Summary AlarmsSystem Configuration Screens or the watchdog timer has Reverse PowerTemperature Over-TemperatureTimeout System Configuration Screens Load On UPSAlarm Message Special FunctionsCommunication Interfaces Worldwide ReportingAuto-Dial Requesting InformationLocal Reporting to a Terminal Local Reporting to a MonitorSite Reporting SiteScan or Snmp Remote Monitor PanelSeparate / Simultaneous Outputs Load On Bypass ScctOK To Transfer Load on Bypass UPS AvailableLoad on UPS Bypass Available Momentary Overloads Refer to 3.4 Automatic OperationsInput Power Failure Load On Battery Input Power Fail Load on BatteryOne Module Off-Line One Module Off-Line Load on UPSOff Battery Load on UPS Battery Not AvailableRefer to 3.3.3 Shutdown Procedures Emergency Modules OffEmergency Power Off Emergency Power OffRefer to 3.2.10 Maintenance Bypass System ShutdownLoad on Maintenance Bypass Two Breakers Load on Maintenance Bypass Three Breakers Manual Procedures Refer to 3.4 Automatic Operations for more detailsStart-Up Procedure SCC Start-Up B2. Set the Static Switch Disconnects OFF open SCC Start-Up Procedures Screen UPS Module Start-Up Module Start-Up Procedures Screen Product Load Transfer Procedures Maintenance Bypass Load Transfers Maintenance BypassIf the load is on Maintenance Bypass System BypassShutdown Procedures System Shutdown Procedure UPS bypass line is still energized100 Module Shutdown Procedure Remote Emergency Power Off Repo Local Emergency Modules Off LemoAutomatic Operations Overloads Without TransferAutomatic Transfers to Bypass Automatic Retransfers to UPSAutomatic Module Off-Line Automatic Emergency Modules OffMaintenance DIS Product Liebert Global Services Maintenance Agreements The Signature ProgramProfessional Start-Up TrainingRecord Log Routine MaintenanceAir Filters Battery Maintenance Battery Safety PrecautionsDIS Product 112 DIS Product Matching Battery Cabinets Optional Power BatteriesRack-Mounted Batteries Torque RequirementsTorque Specifications Unless Otherwise Labeled Detection of TroubleCorrective Actions Reporting a ProblemRecommended Test Equipment Rating Environmental Conditions Adjustments Battery OperationElectrical Specifications Voltage Adjustment Range Phase BalancingVoltage Transient Recovery Time Voltage Harmonic ContentSeries 600T UPS

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