Liebert 1000kVA Modes of Operation, Circuit breaker abbreviations Abbreviation Circuit Breaker

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Operation

3.3Modes of Operation

This section illustrates the flow of power through circuit breakers, switches and UPS components during various modes of operation. An SCCT with three modules is shown. The same modes of opera- tion apply to all configurations of the Liebert Series 610 UPS multi-module system. Highlighted (thick) lines in the diagrams indicate power flow and power availability.

These illustrations show a three-breaker maintenance bypass because it is commonly used. Your instal- lation may have a two-breaker, three-breaker or four-breaker maintenance bypass or none at all.

These illustrations do not show an alternate power source (generator) and automatic transfer switch (external to the UPS) that might be present at your installation.

Table 12 below lists abbreviations for circuit breakers used in this manual.

Table 12 Circuit breaker abbreviations

Abbreviation	Circuit Breaker

BFB	Bypass Feeder Breaker

BIB	Bypass Input Breaker

CB1	Module Input Breaker

CB2	Module Output Breaker

MBB	Maintenance Bypass Breaker

MBD	Module Battery Disconnect

MIB	Maintenance Isolation Breaker

RIB	Rectifier Input Breaker

SBB	System Bypass Breaker

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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 Other Factors to Consider Safety PrecautionsInput Power Failure Modes of OperationOperator Controls 1989-2003 Options BatteryTwo Breaker Maintenance Bypass Battery Racks or CabinetsModule Battery Disconnect Three Breaker Maintenance BypassSystem Control Cabinet General Component DescriptionsUPS Module Battery PlantControls Hardware Detailed Component DescriptionsSoftware Input Circuit Breaker Input Power FactorRectifier/Charger OperationBattery Equalize Charge Circuit Battery Charging CircuitBattery Disconnect Battery Charge Current LimitingOutput Regulation and Overload Performance Non-Linear Load CharacteristicsUnbalanced Load Characteristics InverterFuse 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 6 System Status Messages Status/Alarm Message AreasItem 7 Alarm Messages Item 5 Module 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 RateRetransfer Attempts System Current RatingLanguage Selection System OptionsContinuous 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 Control Power Manual ResetStatic Switch Bypass PhaseModule N Off Reverse PowerInverter Fault TransferNew Alarm Battery OvertempOvertemperature TimeoutAlarm Message Alarm messages summarySpecial Functions Requesting Information Communication InterfacesWorldwide Reporting Auto-DialLocal 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 150% Overloads Without TransferAutomatic Transfers to Bypass 1000%Automatic Module Off-Line Automatic Retransfers to UPSAutomatic Emergency Modules Off Maintenance Training Liebert Global ServicesMaintenance Agreements The Signature Program Professional Start-UpRecord 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 Recommended Test Equipment Reporting a ProblemUpstream Feeder Circuit Breaker Setting Inspections Corrective ActionsRating Power factor pf KVAKVA Environmental Conditions Specifications applicable to environmentBattery Operation AdjustmentsElectrical Specifications Specifications 112 Page United States Technical Support/ServiceCompany Behind the 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