Liebert Series 600T manual Alarm Limit Settings Screen, Alarm Settings

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3.1.6Alarm 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 35 Module Alarm Limit Settings Screen

SECURITY ACCESS

EXIT

UP : CURSOR UP

DOWN : CURSOR DOWN

SELECT : CHOOSE

ALARM SETTINGS

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

15 min

Battery Rating (100%)

500

KW

Battery Rating

250

KW

45 min

Overload Alarm (SCC and modules). This alarm setting initiates an alarm message on the display screen warn- ing the operator that the UPS system output current has exceeded the specified limit. This condition only acti- vates 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 system capability.

DC Over-Voltage (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 sec- onds, a Battery Discharging alarm message is displayed on the module screen. This means that the battery is dis- charging 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 typically set for a reserve time of approximately five minutes (10 volts above the 60-Minute Battery Shutdown Voltage), based on full load operation.

Battery Shutdown (15 Minutes) (modules only). When the battery voltage decreases to this limit for five sec- onds during the first 15 minutes of the discharge, the battery circuit breaker opens to prevent over-discharge. 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 min- utes, 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 information. Also refer to the battery manufac- turer’s manual.

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.

Operation 55

DISCONTINUED

PRODUCT

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Contents Series 600T UPS DIS Product Table of Contents Manual Procedures Figures Tables Important Safety Instructions Overview of this Manual Multi-Module UPS, 65-80 kVA left and 100-500 kVA right System DescriptionProduct Multi-Module 500-750 kVA UPS System Control Cabinets SCCs Types of System Control Cabinets SCCsDesigned for Success ReliabilityOther Factors to Consider Safety Precautions Modes of Operation Operator Controls DIS Product Options System Control Cabinet General Component DescriptionsUPS Module Battery PlantControls Hardware Detailed Component DescriptionsFirmware Rectifier/ChargerBattery Charging Circuit Input Power FactorInput Circuit Breaker Isolation TransformerBattery Charge Current Limiting Battery DisconnectBattery Equalize Charge Circuit Operation After End-of-DischargeUnbalanced Load Characteristics Non-Linear Load CharacteristicsInverter Output Regulation and Overload PerformanceStatic Bypass Static Switch IsolationFuse Protection Shorted SCR MonitoringLoad Transfers Pulsed Parallel OperationAutomatic Transfers to Bypass Transfer and Retransfer ConditionsManual Transfers Transfer InhibitedManual Retransfers Redundant ModeRetransfer Inhibited Display Screen and Operator Controls FeaturesDescription Function System Control Cabinet Operator Controls Sccb Pictured Description Location Function Shutdown ProceduresSwitches Behind SCC Control Panel Door Menu Tree WALK-IN Display modules only Master Menu ScreenBattery Time modules only Load Transfer Procedures SCC onlyCustomer Alarm Definitions SCC only Input Metering Displays Monitor/Mimic Display ScreenOutput Metering Displays Item 7 Alarm Messages Status/Alarm Message AreasItem 5 Module Status Messages Item 6 System Status MessagesModule Monitor/Mimic Display Screen Item 5 Alarm Messages Alarm MessagesMOD 1 on Line MOD 2 on Line MOD 3 on Line UPS Ratings UPS Input PWR UPS Ratings UPS Input PWR Bypass Input Load Bypass Input C-A Walk-In Display Screen During Start-Up Walk-In Display ScreenStatus Reports Screen Status Reports ScreensSelect Exit Present StatusEvent History MODULE-0 Event HistoryHistory Status Report Screens History StatusModule SCCSystem Status Battery Cycle Monitor Module OnlyBattery Cycle Monitoring Summary Screen System Configuration System Configuration ScreensDate Screen DateTime Screen TimeDial Auto DialModem Baud Rate Modem Baud RateRetransfer Attempts Maximum Auto-Retransfer AttemptsRemote Monitor Alarm Settings Alarm Limit Settings ScreenProduct Refer to 3.3.2 Load Transfer Procedures for more details Load Transfer Procedures ScreenRefer to 3.3.1 Start-Up Procedure for more details Start-Up Procedures ScreenModule Start- Up Procedures Screen Shutdown Procedures Shutdown Procedures ScreenModule Shutdown Procedures Screen VDC Battery Time Screen Module OnlyBattery Time Screen Example 45 Minute Discharge Aining Rem Tim Calculated La p s e d T im e M in u te s Range of Values for Calculated Battery TimesUP Cursor UP Down Cursor Down Select Choose Meter Calibration ScreenBattery Equalize Recharging Battery Equalize Screen3 Modules Connected Alarm and Status Messages Module Status MessagesLoad Block Messages System Status MessagesOF/UF Abbreviations Used in Alarm MessagesBattery CB Open DC Ground FaultPower BatteryStatic Switch Manual ResetBypass Phase Control PowerIndications and Other Alarms That Activate Summary Alarms AlarmSystem Configuration Screens or the watchdog timer has Reverse PowerOver-Temperature TemperatureTimeout System Configuration Screens Load On UPSSpecial Functions Alarm MessageWorldwide Reporting Communication InterfacesAuto-Dial Requesting InformationLocal Reporting to a Monitor Local Reporting to a TerminalSite Reporting SiteScan or Snmp Remote Monitor PanelSeparate / Simultaneous Outputs Scct Load On BypassLoad on Bypass UPS Available OK To TransferLoad on UPS Bypass Available Refer to 3.4 Automatic Operations Momentary OverloadsInput 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 3.3.3 Shutdown ProceduresEmergency Power Off Emergency Power OffSystem Shutdown Refer to 3.2.10 Maintenance BypassLoad on Maintenance Bypass Two Breakers Load on Maintenance Bypass Three Breakers Refer to 3.4 Automatic Operations for more details Manual ProceduresStart-Up Procedure SCC Start-Up B2. Set the Static Switch Disconnects OFF open SCC Start-Up Procedures Screen UPS Module Start-Up Module Start-Up Procedures Screen Product Load Transfer Procedures Maintenance Bypass Maintenance Bypass Load TransfersIf the load is on Maintenance Bypass System BypassUPS bypass line is still energized Shutdown Procedures System Shutdown Procedure100 Module Shutdown Procedure Local Emergency Modules Off Lemo Remote Emergency Power Off RepoOverloads Without Transfer Automatic OperationsAutomatic Retransfers to UPS Automatic Transfers to BypassAutomatic Emergency Modules Off Automatic Module Off-LineMaintenance DIS Product Maintenance Agreements The Signature Program Liebert Global ServicesProfessional Start-Up TrainingRecord Log Routine MaintenanceAir Filters Battery Safety Precautions Battery MaintenanceDIS Product 112 DIS Product Power Batteries Matching Battery Cabinets OptionalRack-Mounted Batteries Torque RequirementsDetection of Trouble Torque Specifications Unless Otherwise LabeledCorrective Actions Reporting a ProblemRecommended Test Equipment Rating Environmental Conditions Battery Operation AdjustmentsElectrical Specifications Phase Balancing Voltage Adjustment RangeVoltage Transient Recovery Time Voltage Harmonic ContentSeries 600T UPS
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