Liebert 30-130kVA Battery Cycle, Battery Duration, MIN MAX Weeks, Seconds, Battery Equalizer

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Operation

To enable the Auto Battery Self Test, Select “Auto Test Enable” from the Battery Test screen. Next, set the Date and Time at which the first test will be performed. Set the Test Cycle period in weeks. (The range is 2-9 weeks and the default is 2 weeks.) Finally, set the Test Duration time in seconds according to the table above. The range is 30-900 seconds and the default is 60 seconds. Use the UP DOWN navigation buttons to change the cursor position when setting battery parameters.

Figure 86 Set battery cycle screen

BATTERY CYCLE

MIN 2

2

MAX 9

WEEKS

Figure 87 Set battery duration screen

BATTERY DURATION

MIN 30		MAX 900
		SECONDS

Battery Equalizer

In order to prolong battery life, the Npower system provides a User-programmable setting after each battery discharge. The equalize setpoint is typically set to a higher float voltage.

When the input utility power is interrupted, the battery supplies DC power to the inverter so there is no interruption of power to the critical load. When the AC input power is restored, the battery equal- ize recharging circuit can be activated automatically or manually to increase the rectifier/charger out- put voltage to recharge the battery. The battery equalize circuit may also be manually activated at any time during normal float (constant) voltage operation. The equalizing time can be adjusted from 0 to 72 hours. The default setting is 0. A setting of 0 is interpreted as if the feature were disabled.

The Battery Equalize screen The battery equalize screen lets the operator change the battery equalize recharging mode from manual to automatic, and to observe or change the equalize time. To access this screen go to the MAIN MENU, highlight BATTERY MANAGEMENT, and press SELECT. This brings up the Battery Management screen. Highlight BATTERY EQUALIZER and press SELECT. The Battery Equalizer Screen (Figure 88) will appear.

! CAUTION

The manufacturers of the valve-regulated batteries supplied with Liebert’s standard battery cabinets recommend that when first installed the batteries be equalize charged. After that initial equalize charge, they recommend no further equalize charging for their batteries. Other manufacturers may have different recommendations for their products. Consult the battery manufacturer’s manual for specific information about equalize charging.

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Contents Npower UPS Page Table of Contents Communication Interfaces MaintenanceFigures Page Tables Page Important Safety Instructions Overview of Manual System Description Versatility Safety PrecautionsFactory Backup and Service Assistance ReliabilityRecharge Input Power FailureModes Of Operation Normal Load On UPSCHG Mimic DisplaySYS. Status Options Operator ControlsGeneral Component Description Battery SystemUPS Module Controls Hardware Detailed Component DescriptionsFirmware Operation Input Power FactorBattery Charging Circuit Rectifier/ChargerOperation After End-of-discharge Battery DisconnectBattery Charge Current Limiting Battery Equalize Charge CircuitStatic Switch Backfeed Protection Nonlinear Load CharacteristicsUnbalanced Load Characteristics Static Bypass SwitchTransfer and Retransfer Conditions Operation Operation Navigation Buttons Operator Control PanelRotary switch Rotary SwitchPrev Cancel Save & Exit ConfigurationUser Settings Security Access and PasswordsMenu Tree Display Screens and ProceduresSecondary Screens Primary ScreensMimic Display Screen Main Menu ScreenDischg FaultsFaults / Alarms RectSYS. Status Mimic DisplayTemps DEG C Inlet AIR Outlet AIR Heat Sinks DC BUS / Battery StatusInput Status FreqBypass Input Status Freq .9 HZ 213 214 Phase DiffOutput Load Status EXI T Active Faults and AlarmsFaults and Alarms User ShutdownNext System RatingsSecond Scenario Manual StartupAuto Startup Skip Abort Input Modify Current Limit Target and Ramp ValuesModify DC BUS SET Point Target and Ramp Values ServExternal maintenance bypass switch, dual-input UPS SIB External Maintenance BypassExternal maintenance bypass switch, single-input UPS External Maintenance Bypass Switch Configurations Multiple Battery CabinetsShutdown User ShutdownStatus Reports Status ReportsSystem Status History LOG Clear History Logs Clear Event LOGTotal Event LOGEvent Log Output History LOG02 / 10 OUT-V IN-V Load FreqInput of / UF SBS Line Trap SBS LoadExit Configuration ScreensPrev DC BUS VoltsInput Frequency Output FrequencyCurrent Date System SettingsCancel Save & Exit System SettingsTime Next PREV. Cancel Save & ExitCurrent Time Order NumberOutput Transformer Bypass WIND. no Enter PasswordSingle / Dual Input DualOptions 10% Passive Filter SettingsOptions Active Filter LBS Generator Auto RestartPrev Exit Pulse Rectifier Battery GND Fault Green MachineAlternate Power Pole FAN no Line Drop CompensationAuto Dial Communication OptionsNext Exit Auto Dial YES Auto Dial OUT Pager Pager Support ConfigurationPager Enabled Pager Number Pager PIN Modem Health CheckPREV. Cancel Next PREV. Cancel Factory Settings 10 % Passive Filter SettingsNext Cancel Freeze Alarm MaskLatching DialSave & Exit Cancel Alarm / Fault NameAlarm / Fault Name Battery Fuse Fail Alarm / Fault Name F EAuto Dial Customer Alarm InterfaceProgrammable Output Relay Board # Customer Alarm InterfaceRemote LED Board # STD SET User Defined Relay AssignmentsSTD SET UP Down ADD Remove Clear Exit Prog Relay #Manual Transfer Navigating ProtocolBattery Test Battery ManagementAuto Test MIN MAX Weeks Battery CycleBattery Duration Battery EqualizerStop Start Enabled DisabledAuto ManualEqualize Time Period Battery Temp Compensation ChargeTemperature Battery Temperature Compensation ChargeBattery Cycle Monitor Battery Temp CompensationSummary Clear BCM Battery Cycle MonitorClear Summary YES / no Summary Seconds Discharge CyclesTime Down BATT. EOD Lower SET Point BATT. EOD Upper SET Point Battery Time Low WarningBATT. Time LOW Warning Battery SupplementAuto Restart Auto Restart Trigger Condition Alarm NotificationsSystem Status Monitoring System StatusSign OFF Date 10/30/02 System StatusSign OFF Date 10/30/01 Next Prev Save & ExitAccumulated # of Brown Outs Accumulated Backup HoursAccumulated Operating Hours on UPS Accumulated Operating Hours on BypassFaults Faults, Alarms, StatusDescription L Latching...D Dial Alarm / Fault Name F E DelayOn Battery Input Contact #1 UP DownSummary Alarms, functions, and corrective actions Alarm MessagesContact Liebert Global Service to check Excess load from the UPS and attempt to EPO Maximum heat sink temperature limit This is a summary event based on Battery is discharging. This occurs RMS input current has reached Output kVA or kW or RMS current has With the load on UPS, PhaseB output KVA Condition only causes an alarm, but should Push-button switch located on See 3.3.7 Battery Management All of the alarms before attempting to Status Communication InterfacesWorldwide Reporting 1 RS-232 Port Local Reporting TerminalAuto-Dial Dial Out Pager Requesting InformationSiteScan Remote Alarm Status PanelLoad on Bypass Setting Up External Communication DevicesOK to Transfer Momentary Overloads Input Power Failure Load on BatteryAutomatic Re-transfers to UPS Automatic OperationsOverloads Automatic Transfers to BypassAutomatic Module Off Line Maintenance Air Filters Routine MaintenanceBattery Maintenance Record LogBattery Safety Precautions Torque Requirements Battery voltage recordRecommended Test Equipment Reporting a ProblemDetecting Trouble Corrective ActionsMaintenance 101 Maintenance 102 Page Ne t