Liebert 1000kVA manual Battery Maintenance, Battery Safety Precautions

Page 108

Maintenance

4.4Battery Maintenance

! WARNING

These maintenance procedures will expose hazardous live parts. Refer servicing to qualified personnel.

DC fuses operate at the rated battery voltage at all times. A blown DC bus fuse indicates a serious problem. Serious injury or damage to the equipment can result if the fuse is replaced without knowing why it failed. Call Liebert Global Services for assistance.

4.4.1Battery Safety Precautions

Servicing of batteries should be performed or supervised by personnel knowledgeable of batteries and the required precautions. Keep unauthorized personnel away from batteries.

When replacing batteries, use the same number and type of batteries.

! WARNING

Lead-acid batteries contain hazardous materials. Batteries must be handled, transported and recycled or discarded in accordance with federal, state and local regulations. Because lead is a toxic substance, lead-acid batteries must be recycled rather than discarded.

Do not dispose of battery or batteries in a fire. The battery may explode.

Do not open or mutilate the battery or batteries. Released electrolyte is harmful to the skin and eyes. It is toxic.

A battery can present a risk of electrical shock and high short circuit current. The following precautions should be observed when working on batteries:

•Remove watches, rings and other metal objects.

•Use tools with insulated handles.

•Wear rubber gloves and boots.

•Do not lay tools or metal parts on top of batteries.

•Disconnect charging source prior to connecting or disconnecting battery terminals.

•Determine if battery is inadvertently grounded. If inadvertently grounded, remove source of ground. Contact with any part of a grounded battery can result in electrical shock. The likelihood of such shock will be reduced if such grounds are removed during installation and maintenance.

Lead-acid batteries can present a risk of fire because they generate hydrogen gas. In addition, the electrical connections must be protected against accidental short circuits which can cause sparks. The following procedures should be followed:

•DO NOT SMOKE when near batteries.

•DO NOT cause flame or spark in battery area.

•Discharge static electricity from body before touching batteries by first touching a grounded metal surface.

•After replacing battery jars in a battery cabinet, replace the retaining straps that hold the jars in place on the shelves. This will limit accidental movement of the jars and connectors should the cabinet ever need to be repositioned or relocated. Regular maintenance of the battery module is an absolute necessity. Periodic inspections of battery and terminal volt- ages, specific gravity and connection resistance should be made. Strictly follow the proce- dures outlined in the battery manufacturer’s manual, available on the manufacturer’s Web site.

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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 Reliability Types of System Control Cabinets SCCsDesigned for Success Safety Precautions Input Power FailureModes of Operation Other Factors to ConsiderOperator Controls 1989-2003 Battery OptionsBattery Racks or Cabinets Module Battery DisconnectThree Breaker Maintenance Bypass Two Breaker Maintenance BypassGeneral Component Descriptions System Control CabinetBattery Plant UPS ModuleDetailed Component Descriptions Controls HardwareSoftware Input Power Factor Rectifier/ChargerOperation Input Circuit BreakerBattery Charging Circuit Battery DisconnectBattery Charge Current Limiting Battery Equalize Charge CircuitNon-Linear Load Characteristics Unbalanced Load CharacteristicsInverter Output Regulation and Overload PerformanceStatic Bypass Fuse ProtectionShorted SCR Monitoring Static Switch Isolation Pulsed Parallel OperationLoad Transfers Transfer and Retransfer Conditions Redundant Mode Retransfer InhibitedFeatures Display Screen and Operator Controls500kVA 1000kVADescription Function Operation Refer to 3.4.5 Shutdown Procedures Numbers are used as keys to data in , belowDescription Location Function Switches behind SCC control panel door Menu Tree Navigation Menu treeMaster Menu Screen SCC Master MenuModule Master Menu Operation SCC Monitor/Mimic Display Screen Input Metering DisplaysOutput Metering Displays Status/Alarm Message Areas Item 7 Alarm MessagesItem 5 Module Status 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 StatusEvent History SCC Status ReportModule 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 Current Rating Language SelectionSystem Options 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 MessagesAbbreviations used in alarm messages Load Block MessagesAbbreviation Definition Alarm messages meaning and corrective action Manual Reset Static SwitchBypass Phase Control PowerReverse Power Inverter FaultTransfer Module N OffBattery Overtemp OvertemperatureTimeout New AlarmAlarm messages summary Alarm MessageSpecial Functions Communication Interfaces Worldwide ReportingAuto-Dial Requesting InformationLocal Reporting to a Terminal Local Reporting to a MonitorSite Reporting SiteScan or Snmp Series 610 terminal commands Remote Monitor PanelSeparate / Simultaneous Outputs 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 Manual Procedures SCC Start-Up ProcedureRefer 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 Load Transfer Procedures Manual Transfer Instructions UPS LeadMaintenance Bypass Load Transfers If the load is on Maintenance BypassIf the load is on the UPS System Bypass Shutdown Procedures System Shutdown Procedure Module Shutdown Procedure Remote Emergency Power Off Repo Automatic OperationsLocal Emergency Modules Off Lemo Overloads Without Transfer Automatic Transfers to Bypass1000% 150%Automatic Retransfers to UPS Automatic Module Off-LineAutomatic Emergency Modules Off Maintenance Liebert Global Services Maintenance Agreements The Signature ProgramProfessional Start-Up TrainingRoutine Maintenance Record LogAir Filters Limited Life Components Battery Maintenance Battery Safety PrecautionsAvertissement Matching Battery Cabinets Optional Number of Cells Battery Voltage VDC Nominal FloatBattery retorque values Battery voltage recordRack-Mounted Batteries Torque specifications unless otherwise labeled Detection of TroubleTorque Requirements Reporting a Problem Upstream Feeder Circuit Breaker Setting InspectionsCorrective Actions Recommended Test EquipmentPower factor pf KVA RatingKVA Specifications applicable to environment Environmental ConditionsAdjustments Battery OperationElectrical Specifications Specifications 112 Page Technical Support/Service Company Behind the ProductsLocations United States
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