Modes of Operation | Liebert 1000kVA guide

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

Contents

Series 610 UPS Battery Cabinet Precautions Table of Contents Specifications Maintenance Figures Tables Important Safety Instructions Multi-Module UPS, 100-500kVA System Description Multi-Module UPS, 500-750kVA Types of System Control Cabinets SCCs ReliabilityDesigned for Success Other Factors to Consider Safety PrecautionsInput Power Failure Modes of Operation Operator Controls 1989-2003 Options Battery Two Breaker Maintenance Bypass Battery Racks or CabinetsModule Battery Disconnect Three Breaker Maintenance Bypass System Control Cabinet General Component Descriptions UPS Module Battery Plant Controls Hardware Detailed Component DescriptionsSoftware Input Circuit Breaker Input Power FactorRectifier/Charger Operation Battery Equalize Charge Circuit Battery Charging CircuitBattery Disconnect Battery Charge Current Limiting Output Regulation and Overload Performance Non-Linear Load CharacteristicsUnbalanced Load Characteristics Inverter Fuse Protection Static BypassShorted SCR Monitoring Pulsed Parallel Operation Static Switch IsolationLoad Transfers Transfer and Retransfer Conditions Retransfer Inhibited Redundant Mode Display Screen and Operator Controls Features 1000kVA 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 Navigation SCC 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 Messages Module Monitor/Mimic display screen Module Monitor/Mimic Display Screen Item 5 Alarm Messages Alarm Messages Module Display SCC Display Monitor/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 Screen Present Status Status Reports Screens SCC Status Report Event HistoryModule Status Report History status report screens History Status Alarm in SCC Alarm in Module Alarm conditions that freeze history data gathering System Status Battery Cycle Monitor-Module Only Battery cycle monitoring summary screen SCC system configuration screen System Configuration Screens Date screen Date Time screen Time Auto Dial Auto dial setting screen Maximum Auto-Retransfer Attempts Modem Baud Rate Retransfer Attempts System Current RatingLanguage Selection System Options Continuous Duty Static Switch Optional Battery test screen-MMU only SCC and module remote monitor indications Remote Monitor Module alarm limit settings screen Alarm Limit Settings Screen Temperature Limit Setting Optional Battery Float Voltage Refer to 3.4.3 Load Transfer Procedures for more details Load Transfer Procedures Screen Refer to 3.4.1 SCC Start-Up Procedure for more details Start-Up Procedures Screen Module start- up procedures screens Shutdown Procedures Screen SCC shutdown procedures screen Battery time screen 15 minute discharge Battery Time Screen Module Only Elapsed Time Minutes Upper Limit Actual Lower Limit Operation Meter calibration screen Meter Calibration Screen Battery equalize screen Battery Equalize Screen System Status Messages Alarm and Status Messages Module Status Messages Load Block Messages Abbreviations used in alarm messagesAbbreviation Definition Alarm messages meaning and corrective action Control Power Manual ResetStatic Switch Bypass Phase Module N Off Reverse PowerInverter Fault Transfer New Alarm Battery OvertempOvertemperature Timeout Alarm Message Alarm messages summarySpecial Functions Requesting Information Communication InterfacesWorldwide Reporting Auto-Dial Local 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 Bypass Load on bypass, UPS available Momentary Overloads Momentary overload, pulsed static bypass switch Input power fail-load on battery Input Power Failure-Load on Battery One module off-line, load on UPS One Module Off-Line Load on UPS-battery not available Off Battery Emergency Modules Off Refer to 3.4.5 Shutdown Procedures Emergency power off Remote Emergency Power Off System Shutdown Refer to 3.3.10 Maintenance Bypass Load 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 Procedures If 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-Up Record Log Routine MaintenanceAir Filters Limited Life Components Battery Safety Precautions Battery Maintenance Avertissement Number of Cells Battery Voltage VDC Nominal Float Matching Battery Cabinets Optional Battery 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 Actions Rating Power factor pf KVAKVA Environmental Conditions Specifications applicable to environment Battery Operation Adjustments Electrical Specifications Specifications 112 Page United States 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