Liebert 1000kVA manual Off Battery, Load on UPS-battery not available

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Operation

3.3.6Off Battery

The battery plant can be disconnected from the UPS modules, if required for battery maintenance, by opening the module battery disconnect (MBD) circuit breaker(s). In this situation the UPS system will continue to supply conditioned power to the critical load, but if input power fails the UPS system cannot supply power to the load.

! CAUTION

When the UPS system is operating with the module battery disconnect (MBD) circuit breaker(s) open, the critical load is not protected from loss of the utility source power.

For battery maintenance on multi-module systems, Liebert recommends taking the module requiring maintenance off-line before beginning the work. This precaution will minimize disturbances on the system bus if input power fails during the maintenance work.

Figure 58 Load on UPS—battery not available

RIB

RIB

RIB

BFB

UPS #3

UPS #2

UPS

#1

CB1

CB1

CB1

SBS

BIB

R

R

R

SBB

I

I

I

MBB

CB2

CB2

CB2

System

SKRU

Controls

Output

MIB

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

79

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Contents Series 610 UPS Battery Cabinet Precautions Table of Contents Specifications MaintenanceFigures Tables Important Safety Instructions Multi-Module UPS, 100-500kVA System DescriptionMulti-Module UPS, 500-750kVA Types of System Control Cabinets SCCs ReliabilityDesigned for Success Input Power Failure Safety PrecautionsModes of Operation Other Factors to ConsiderOperator Controls 1989-2003 Options BatteryModule Battery Disconnect Battery Racks or CabinetsThree Breaker Maintenance Bypass Two Breaker Maintenance BypassSystem Control Cabinet General Component DescriptionsUPS Module Battery PlantControls Hardware Detailed Component DescriptionsSoftware Rectifier/Charger Input Power FactorOperation Input Circuit BreakerBattery Disconnect Battery Charging CircuitBattery Charge Current Limiting Battery Equalize Charge CircuitUnbalanced Load Characteristics Non-Linear Load CharacteristicsInverter Output Regulation and Overload PerformanceFuse Protection Static BypassShorted SCR Monitoring Pulsed Parallel Operation Static Switch IsolationLoad Transfers Transfer and Retransfer Conditions Retransfer Inhibited Redundant ModeDisplay Screen and Operator Controls Features1000kVA 500kVADescription Function Operation Numbers are used as keys to data in , below Refer to 3.4.5 Shutdown ProceduresDescription Location Function Switches behind SCC control panel door Menu tree Menu Tree NavigationSCC Master Menu Master Menu ScreenModule Master Menu Operation Input Metering Displays SCC Monitor/Mimic Display ScreenOutput Metering Displays Item 7 Alarm Messages Status/Alarm Message AreasItem 5 Module Status Messages Item 6 System Status MessagesModule Monitor/Mimic display screen Module Monitor/Mimic Display ScreenItem 5 Alarm Messages Alarm MessagesModule Display SCC DisplayMonitor/Mimic display example Utility fail KVA / 217 kW 325A 325A 325A MOD On Line OFF Line SUM ALM B-C C-A 0V 0V Not OK to Transfer Static Switch Connected Walk-in display screen during start-up Walk-In Display ScreenPresent Status Status Reports ScreensSCC Status Report Event HistoryModule Status Report History status report screens History StatusAlarm in SCC Alarm in Module Alarm conditions that freeze history data gatheringSystem Status Battery Cycle Monitor-Module OnlyBattery cycle monitoring summary screen SCC system configuration screen System Configuration ScreensDate screen DateTime screen TimeAuto Dial Auto dial setting screenMaximum Auto-Retransfer Attempts Modem Baud RateLanguage Selection System Current RatingSystem Options Retransfer AttemptsContinuous Duty Static Switch Optional Battery test screen-MMU onlySCC and module remote monitor indications Remote MonitorModule alarm limit settings screen Alarm Limit Settings ScreenTemperature Limit Setting Optional Battery Float VoltageRefer to 3.4.3 Load Transfer Procedures for more details Load Transfer Procedures ScreenRefer to 3.4.1 SCC Start-Up Procedure for more details Start-Up Procedures ScreenModule start- up procedures screens Shutdown Procedures ScreenSCC shutdown procedures screen Battery time screen 15 minute discharge Battery Time Screen Module OnlyElapsed Time Minutes Upper Limit Actual Lower LimitOperation Meter calibration screen Meter Calibration ScreenBattery equalize screen Battery Equalize ScreenSystem Status Messages Alarm and Status Messages Module Status MessagesLoad Block Messages Abbreviations used in alarm messagesAbbreviation Definition Alarm messages meaning and corrective action Static Switch Manual ResetBypass Phase Control PowerInverter Fault Reverse PowerTransfer Module N OffOvertemperature Battery OvertempTimeout New AlarmAlarm Message Alarm messages summarySpecial Functions Worldwide Reporting Communication InterfacesAuto-Dial Requesting InformationLocal Reporting to a Monitor Local Reporting to a TerminalSite Reporting SiteScan or Snmp Remote Monitor Panel Series 610 terminal commandsSeparate / Simultaneous Outputs Circuit breaker abbreviations Abbreviation Circuit Breaker OK to Transfer Load on BypassLoad on bypass, UPS available Momentary Overloads Momentary overload, pulsed static bypass switchInput power fail-load on battery Input Power Failure-Load on BatteryOne module off-line, load on UPS One Module Off-LineLoad on UPS-battery not available Off BatteryEmergency Modules Off Refer to 3.4.5 Shutdown ProceduresEmergency power off Remote Emergency Power OffSystem Shutdown Refer to 3.3.10 Maintenance BypassLoad on maintenance bypass, two breakers SCC Start-Up Procedure Manual ProceduresRefer to 3.5 Automatic Operations for more details Operation Operation SCC start-up procedures screen UPS Module Start-Up Module start-up procedures screen Operation Manual Transfer Instructions UPS Lead Load Transfer ProceduresIf the load is on Maintenance Bypass Maintenance Bypass Load TransfersIf the load is on the UPS System Bypass Shutdown Procedures System Shutdown Procedure Module Shutdown Procedure Automatic Operations Remote Emergency Power Off RepoLocal Emergency Modules Off Lemo Automatic Transfers to Bypass Overloads Without Transfer1000% 150%Automatic Module Off-Line Automatic Retransfers to UPSAutomatic Emergency Modules Off Maintenance Maintenance Agreements The Signature Program Liebert Global ServicesProfessional Start-Up TrainingRecord Log Routine MaintenanceAir Filters Limited Life Components Battery Safety Precautions Battery MaintenanceAvertissement Number of Cells Battery Voltage VDC Nominal Float Matching Battery Cabinets OptionalBattery voltage record Battery retorque valuesRack-Mounted Batteries Detection of Trouble Torque specifications unless otherwise labeledTorque Requirements Upstream Feeder Circuit Breaker Setting Inspections Reporting a ProblemCorrective Actions Recommended Test EquipmentRating Power factor pf KVAKVA Environmental Conditions Specifications applicable to environmentBattery Operation AdjustmentsElectrical Specifications Specifications 112 Page Company Behind the Products Technical Support/ServiceLocations United States