Liebert 1000kVA manual Maintenance Bypass Load Transfers, If the load is on the UPS System Bypass

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Operation

3.4.4Maintenance Bypass Load Transfers

To manually transfer the load between Maintenance Bypass and the UPS system bypass line, care- fully follow these instructions. Do not transfer the load between Maintenance Bypass and the UPS system (module inverters) output. Use the SCC Monitor/Mimic Display screen to verify the UPS sys- tem bypass line is available.

! CAUTION

Make sure you understand the proper sequence before operating any circuit breaker. Operating a Maintenance Bypass circuit breaker out of sequence could cut off power to the critical load.

! CAUTION

The UPS system (SCC) must be on internal bypass before performing the following procedures and operating MIB or MBB or damage to the UPS may occur and the critical load may be lost.

If the load is on the UPS System Bypass:

a.If the maintenance bypass cabinet or switchboard has an optional 2-key interlock system, press the button on the maintenance bypass cabinet to remove the key from the solenoid.

NOTE

If the maintenance bypass cabinet or switchboard has any other type of custom interlock, follow the specific instructions for that interlock system to remove the key.

b.If using a key interlock system, insert the key into the lock for the Maintenance Bypass Breaker (MBB) to enable it to be closed.

c.Close the Maintenance Bypass Breaker (MBB).

d.Verify closure of the MBB. Then open the Maintenance Isolation Breaker (MIB). The UPS system is now isolated from the critical load and the load is now on Maintenance Bypass.

e.If using a key interlock system, remove the key from the lock for the Maintenance Isolation Breaker (MIB) to lock it open.

f.If the maintenance bypass cabinet or switchboard has an optional 2-key interlock system, replace the key into the solenoid.

g.If UPS bypass shutdown is required, open the Bypass Input Breaker (BIB).

If the load is on Maintenance Bypass:

a.Close the Bypass Input Breaker (BIB) or verify BIB is closed. Note that UPS System Bypass circuit breaker (motorized) must also be closed. Refer to 3.4.1 - SCC Start-Up Procedure.

b.If the maintenance bypass cabinet or switchboard has an optional 2-key interlock system, press the button on the maintenance bypass cabinet to remove the key from the solenoid.

NOTE

If the maintenance bypass cabinet or switchboard has any other type of custom interlock, follow the specific instructions for that interlock system to remove the key.

c.If using a key interlock system, insert the key into the lock for the Maintenance Isolation Breaker (MIB) to enable it to be closed.

d.Close the Maintenance Isolation Breaker (MIB).

e.Verify closure of the MIB. Then open the Maintenance Bypass Breaker (MBB). Load is now on UPS Internal Bypass.

f.If using a key interlock system, remove the key from the lock for the Maintenance Bypass Breaker (MBB) to lock it open.

g.If the maintenance bypass cabinet or switchboard has an optional 2-key interlock system, replace the key into the solenoid.

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Contents Series 610 UPS Battery Cabinet Precautions Table of Contents Maintenance SpecificationsFigures Tables Important Safety Instructions System Description Multi-Module UPS, 100-500kVAMulti-Module UPS, 500-750kVA Designed for Success ReliabilityTypes of System Control Cabinets SCCs Modes of Operation Safety PrecautionsInput Power Failure Other Factors to ConsiderOperator Controls 1989-2003 Battery OptionsThree Breaker Maintenance Bypass Battery Racks or CabinetsModule Battery Disconnect Two Breaker Maintenance BypassGeneral Component Descriptions System Control CabinetBattery Plant UPS ModuleSoftware Detailed Component DescriptionsControls Hardware Operation Input Power FactorRectifier/Charger Input Circuit BreakerBattery Charge Current Limiting Battery Charging CircuitBattery Disconnect Battery Equalize Charge CircuitInverter Non-Linear Load CharacteristicsUnbalanced Load Characteristics Output Regulation and Overload PerformanceShorted SCR Monitoring Static BypassFuse Protection Load Transfers Static Switch IsolationPulsed Parallel Operation Transfer and Retransfer Conditions Redundant Mode Retransfer InhibitedFeatures Display Screen and Operator ControlsDescription Function 500kVA1000kVA Operation Description Location Function Refer to 3.4.5 Shutdown ProceduresNumbers are used as keys to data in , below Switches behind SCC control panel door Menu Tree Navigation Menu treeModule Master Menu Master Menu ScreenSCC Master Menu Operation Output Metering Displays SCC Monitor/Mimic Display ScreenInput Metering Displays Item 5 Module Status Messages Status/Alarm Message AreasItem 7 Alarm Messages Item 6 System Status MessagesModule Monitor/Mimic Display Screen Module Monitor/Mimic display screenAlarm Messages Item 5 Alarm MessagesSCC Display Module 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 Walk-in display screen during start-upStatus Reports Screens Present StatusModule Status Report Event HistorySCC Status Report History Status History status report screensAlarm conditions that freeze history data gathering Alarm in SCC Alarm in ModuleBattery Cycle Monitor-Module Only System StatusBattery cycle monitoring summary screen System Configuration Screens SCC system configuration screenDate Date screenTime Time screenAuto dial setting screen Auto DialModem Baud Rate Maximum Auto-Retransfer AttemptsSystem Options System Current RatingLanguage Selection Retransfer AttemptsBattery test screen-MMU only Continuous Duty Static Switch OptionalRemote Monitor SCC and module remote monitor indicationsAlarm Limit Settings Screen Module alarm limit settings screenBattery Float Voltage Temperature Limit Setting OptionalLoad Transfer Procedures Screen Refer to 3.4.3 Load Transfer Procedures for more detailsStart-Up Procedures Screen Refer to 3.4.1 SCC Start-Up Procedure for more detailsShutdown Procedures Screen Module start- up procedures screensSCC shutdown procedures screen Battery Time Screen Module Only Battery time screen 15 minute dischargeUpper Limit Actual Lower Limit Elapsed Time MinutesOperation Meter Calibration Screen Meter calibration screenBattery Equalize Screen Battery equalize screenAlarm and Status Messages Module Status Messages System Status MessagesAbbreviation Definition Abbreviations used in alarm messagesLoad Block Messages Alarm messages meaning and corrective action Bypass Phase Manual ResetStatic Switch Control PowerTransfer Reverse PowerInverter Fault Module N OffTimeout Battery OvertempOvertemperature New AlarmSpecial Functions Alarm messages summaryAlarm Message Auto-Dial Communication InterfacesWorldwide Reporting Requesting InformationSite Reporting SiteScan or Snmp Local Reporting to a TerminalLocal Reporting to a Monitor Separate / Simultaneous Outputs Series 610 terminal commandsRemote Monitor Panel Circuit breaker abbreviations Abbreviation Circuit Breaker Load on Bypass OK to TransferLoad on bypass, UPS available Momentary overload, pulsed static bypass switch Momentary OverloadsInput 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 3.4.5 Shutdown Procedures Emergency Modules OffRemote Emergency Power Off Emergency power offRefer to 3.3.10 Maintenance Bypass System ShutdownLoad on maintenance bypass, two breakers Refer to 3.5 Automatic Operations for more details Manual ProceduresSCC Start-Up Procedure Operation Operation SCC start-up procedures screen UPS Module Start-Up Module start-up procedures screen Operation Load Transfer Procedures Manual Transfer Instructions UPS LeadIf the load is on the UPS System Bypass Maintenance Bypass Load TransfersIf the load is on Maintenance Bypass Shutdown Procedures System Shutdown Procedure Module Shutdown Procedure Local Emergency Modules Off Lemo Remote Emergency Power Off RepoAutomatic Operations 1000% Overloads Without TransferAutomatic Transfers to Bypass 150%Automatic Emergency Modules Off Automatic Retransfers to UPSAutomatic Module Off-Line Maintenance Professional Start-Up Liebert Global ServicesMaintenance Agreements The Signature Program TrainingAir Filters Routine MaintenanceRecord Log Limited Life Components Battery Maintenance Battery Safety PrecautionsAvertissement Matching Battery Cabinets Optional Number of Cells Battery Voltage VDC Nominal FloatRack-Mounted Batteries Battery retorque valuesBattery voltage record Torque Requirements Torque specifications unless otherwise labeledDetection of Trouble Corrective Actions Reporting a ProblemUpstream Feeder Circuit Breaker Setting Inspections Recommended Test EquipmentKVA Power factor pf KVARating Specifications applicable to environment Environmental ConditionsAdjustments Battery OperationElectrical Specifications Specifications 112 Page Locations Technical Support/ServiceCompany Behind the Products United 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