Liebert 1000kVA manual Alarm Limit Settings Screen, Module alarm limit settings screen

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Operation

3.2.7Alarm Limit Settings Screen

Go to the Master Menu and move the highlighted cursor to LIMIT SETTINGS. Press the Select pad and the Limit Settings screen is displayed.

The Alarm Limit Settings screen has Security Access to enable an authorized Liebert field-service engineer to adjust the UPS system alarm limit settings.

! CAUTION

All alarm limit settings are application matched and factory-set. They should not be changed casually. Contact Liebert Global Services for changing the alarm limit settings.

Figure 40 Module alarm limit settings screen

SECURITY ACCESS

EXIT

ALARM SETTINGS

UP: CURSOR UP

DOWN: CURSOR DOWN

SELECT: CHOOSE

Overload Alarm

104

%

 

DC Over Voltage

600

VDC

 

Battery Discharging

480

VDC

 

Low Battery

437

VDC

 

Battery Shutdown (15 minutes)

384

VDC

 

Upper Point (60 minutes)

427

VDC

 

Battery Rating (100%)

500

KW

15 min

Battery Rating

250

KW

45 min

Battery Float Voltage

540

VDC

 

Temperature Limit Settings

34°C

 

 

Overload Alarm (SCC and Modules): This alarm setting initiates an alarm message on the display screen warning the operator that the UPS system output current has exceeded the specified limit. This condition only activates an alarm. The UPS does not shut down, but a separate control circuit will transfer the critical load to bypass if the current and time of the overload condition exceeds sys- tem capability.

DC Overvoltage (Modules Only): This setting limits the maximum permitted level of the DC bus voltage. When this setting is exceeded, an alarm indication appears on the module display screen. The UPS module is taken off-line (the module output circuit breaker is tripped open) and the input and battery circuit breakers trip open.

Battery Discharging (Modules Only): When the battery voltage on the DC bus falls below this limit for 5 seconds, a Battery Discharging alarm message is displayed on the module screen. This means that the battery is discharging due to an input voltage sag or interruption or a module output overload.

Low Battery (Modules Only): While the battery is discharging, this alarm warns the operator that the Battery Shutdown level is approaching. This is generally set for a reserve time of approximately 5 minutes (typically 10 volts above the 60-Minute Battery Shutdown voltage), based on full load opera- tion.

Battery Shutdown (15 Minutes) (Modules Only): When the battery voltage decreases to this limit for five seconds during the first 15 minutes of the discharge, the battery circuit breaker opens to prevent overdischarge. Note that the rated battery reserve time at your site may be other than 15 minutes.

Battery Shutdown (60 Minutes) (Modules Only): During extended outages or deep sags of more than 15 minutes, the shutdown voltage limit will ramp up gradually to this 60-minute limit to prevent lengthy discharge and possible battery damage. The battery circuit breaker opens when the battery voltage and the shutdown limit are equal for five seconds. See the Battery Time screen for more infor- mation. Also refer to the battery manufacturer’s manual, available on the manufacturer’s Web site.

Battery Rating (100%) (Modules Only). This setting is the full load discharge rating of the battery in kilowatts for the rated backup period. A typical rating might be 500 kW for 15 minutes.

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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 Types of System Control Cabinets SCCs ReliabilityDesigned for Success 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 ModuleControls Hardware Detailed Component DescriptionsSoftware 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 PerformanceFuse Protection Static BypassShorted SCR Monitoring Pulsed Parallel Operation Static Switch IsolationLoad Transfers Transfer and Retransfer Conditions Redundant Mode Retransfer InhibitedFeatures Display Screen and Operator Controls1000kVA 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 Navigation Menu treeSCC Master Menu Master Menu ScreenModule Master Menu Operation Input Metering Displays SCC Monitor/Mimic Display ScreenOutput 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 StatusSCC Status Report Event HistoryModule 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 MessagesLoad Block Messages Abbreviations used in alarm messagesAbbreviation Definition Alarm messages meaning and corrective action Bypass Phase Manual ResetStatic Switch Control PowerTransfer Reverse PowerInverter Fault Module N OffTimeout Battery OvertempOvertemperature New AlarmAlarm Message Alarm messages summarySpecial Functions Auto-Dial Communication InterfacesWorldwide Reporting 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 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 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 Load Transfer Procedures Manual Transfer Instructions UPS LeadIf 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 1000% Overloads Without TransferAutomatic Transfers to Bypass 150%Automatic Module Off-Line Automatic Retransfers to UPSAutomatic Emergency Modules Off Maintenance Professional Start-Up Liebert Global ServicesMaintenance Agreements The Signature Program TrainingRecord Log Routine MaintenanceAir Filters Limited Life Components Battery Maintenance Battery Safety PrecautionsAvertissement Matching Battery Cabinets Optional Number of Cells Battery Voltage VDC Nominal FloatBattery voltage record Battery retorque valuesRack-Mounted Batteries Detection of Trouble Torque specifications unless otherwise labeledTorque Requirements Corrective Actions Reporting a ProblemUpstream Feeder Circuit Breaker Setting Inspections Recommended Test EquipmentRating Power factor pf KVAKVA Specifications applicable to environment Environmental ConditionsAdjustments Battery OperationElectrical Specifications Specifications 112 Page Locations Technical Support/ServiceCompany Behind the Products United States
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