Liebert 30-130kVA Multiple Battery Cabinets, External Maintenance Bypass Switch Configurations

Page 40

Operation

External Maintenance Bypass Switch Configurations

The External Maintenance Bypass Switch has three configuration options:

•External maintenance bypass installed with interlock option

•External maintenance bypass installed without interlock option

•Not installed

Table 4

External maintenance switch configuration options

 

 

 

External

 

 

Maintenance Switch

Option Auxiliary Contact

 

Options

Status

User Prompt

 

 

open = On Test position or

Prompts the user to rotate to On Line position,

 

 

Maintenance position, or jumper

Installed with

Just before retransfer.

removed

Interlock Option

 

 

closed = On “ON LINE” position

Manual or automatic start (one button) is

 

 

 

 

(default jumper)

allowed all the way to load being On-line

 

 

 

 

 

 

open = jumper removed

Prompts the user to install jumper just before

 

 

retransfer”

Not installed

 

closed = default jumper

Manual or automatic start (one button) is

 

 

 

 

allowed all the way to load being On-line

 

 

 

 

 

 

 

 

 

Open = Jumper removed

Prompts the user to install jumper just before

Installed without

retransfer”

 

interlock option

 

 

Closed = default jumper

Prompts the user to verify the switch is in on-

 

 

line position before a retransfer is allowed

 

 

 

Regardless of how the configuration is set, if the auxiliary contacts are open, the user is unable to issue a retransfer command through the manual transfer / retransfer screen.

If the option is installed and the auxiliary contact status is read as switch is in the Bypass or Mainte- nance position, the “critical load shutdown” message reads “UPS off”.

Multiple Battery Cabinets

The Npower system offers an option allowing for the installation of more than two battery cabinets. The option consists of a Multiple Battery Breaker (MBB) board that mounts on the control door and an Input Contact Isolator (ICI) board that mounts in the option area (See the Multiple Battery Breaker Option in the options manual.)

The ICI board allows the Npower system to sense multiple battery cabinets, and the MBB board allows the UPS to support multiple battery cabinets by supplying power to the UVR coil of additional battery cabinets.

To access the screen for setting the number of battery cabinets in the system, navigate from the MAIN MENU to CONFIGURATION to SYSTEM SETTINGS, page 3. Select NUMBER OF BAT- TERY CABINETS to bring up the following password-protected screen.

Figure 29 Set number of battery cabinets screen

NUMBER OF BATTERY CABINETS

MIN 1

MAX 6

Set the number of battery cabinets by changing the number in the highlighted box. Pressing SELECT will save this information and return Operator to the System Settings Screen.

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Contents Npower UPS Page Table of Contents Maintenance Communication InterfacesFigures Page Tables Page Important Safety Instructions Overview of Manual System Description Safety Precautions Factory Backup and Service AssistanceReliability VersatilityInput Power Failure Modes Of OperationNormal Load On UPS RechargeCHG Mimic DisplaySYS. Status Operator Controls OptionsGeneral Component Description Battery SystemUPS Module Controls Hardware Detailed Component DescriptionsFirmware Input Power Factor Battery Charging CircuitRectifier/Charger OperationBattery Disconnect Battery Charge Current LimitingBattery Equalize Charge Circuit Operation After End-of-dischargeNonlinear Load Characteristics Unbalanced Load CharacteristicsStatic Bypass Switch Static Switch Backfeed ProtectionTransfer and Retransfer Conditions Operation Operation Operator Control Panel Navigation ButtonsRotary Switch Rotary switchConfiguration User SettingsSecurity Access and Passwords Prev Cancel Save & ExitDisplay Screens and Procedures Menu TreePrimary Screens Secondary ScreensMain Menu Screen Mimic Display ScreenFaults Faults / AlarmsRect DischgMimic Display SYS. StatusDC BUS / Battery Status Input StatusFreq Temps DEG C Inlet AIR Outlet AIR Heat SinksBypass Input Status Freq .9 HZ 213 214 Phase DiffOutput Load Status Active Faults and Alarms Faults and AlarmsUser Shutdown EXI TSystem Ratings NextSecond Scenario Manual StartupAuto Startup Input Modify Current Limit Target and Ramp Values Modify DC BUS SET Point Target and Ramp ValuesServ Skip AbortSIB External Maintenance Bypass External maintenance bypass switch, dual-input UPSExternal maintenance bypass switch, single-input UPS Multiple Battery Cabinets External Maintenance Bypass Switch ConfigurationsUser Shutdown ShutdownStatus Reports System StatusHistory LOG Clear History Logs Clear Event LOG Status ReportsTotal Event LOGEvent Log History LOG 02 / 10OUT-V IN-V Load Freq OutputSBS Line Trap SBS Load Input of / UFConfiguration Screens ExitDC BUS Volts Input FrequencyOutput Frequency PrevSystem Settings Cancel Save & ExitSystem Settings Current DateNext PREV. Cancel Save & Exit Current TimeOrder Number TimeEnter Password Single / Dual InputDual Output Transformer Bypass WIND. no10% Passive Filter Settings OptionsActive Filter LBS Generator Auto Restart OptionsPulse Rectifier Battery GND Fault Green Machine Alternate Power Pole FAN noLine Drop Compensation Prev ExitAuto Dial Communication OptionsNext Exit Pager Support Configuration Pager Enabled Pager Number Pager PINModem Health Check Auto Dial YES Auto Dial OUT PagerPREV. Cancel Next PREV. Cancel Factory Settings 10 % Passive Filter SettingsNext Cancel Alarm Mask LatchingDial FreezeAlarm / Fault Name Alarm / Fault Name Battery Fuse FailAlarm / Fault Name F E Save & Exit CancelCustomer Alarm Interface Auto DialProgrammable Output Relay Board # Customer Alarm InterfaceRemote LED Board # STD SET User Defined Relay AssignmentsSTD SET Prog Relay # UP Down ADD Remove Clear ExitNavigating Protocol Manual TransferBattery Management Battery TestAuto Test Battery Cycle Battery DurationBattery Equalizer MIN MAX WeeksEnabled Disabled AutoManual Stop StartBattery Temp Compensation Charge TemperatureBattery Temperature Compensation Charge Equalize Time PeriodBattery Temp Compensation Battery Cycle MonitorSummary Clear BCM Battery Cycle MonitorClear Summary YES / no Summary Seconds Discharge CyclesTime Down Battery Time Low Warning BATT. EOD Lower SET Point BATT. EOD Upper SET PointBATT. Time LOW Warning Battery SupplementAuto Restart Alarm Notifications Auto Restart Trigger ConditionSystem Status System Status MonitoringSystem Status Sign OFF Date 10/30/01Next Prev Save & Exit Sign OFF Date 10/30/02Accumulated Backup Hours Accumulated Operating Hours on UPSAccumulated Operating Hours on Bypass Accumulated # of Brown OutsFaults, Alarms, Status FaultsAlarm / Fault Name F E Delay On Battery Input Contact #1UP Down Description L Latching...D DialSummary Alarm Messages Alarms, functions, and corrective actionsContact 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 Communication Interfaces StatusWorldwide Reporting 1 RS-232 Port Local Reporting TerminalAuto-Dial Requesting Information Dial Out PagerRemote Alarm Status Panel SiteScanLoad on Bypass Setting Up External Communication DevicesOK to Transfer Input Power Failure Load on Battery Momentary OverloadsAutomatic Operations OverloadsAutomatic Transfers to Bypass Automatic Re-transfers to UPSAutomatic Module Off Line Maintenance Routine Maintenance Battery MaintenanceRecord Log Air FiltersBattery Safety Precautions Battery voltage record Torque RequirementsReporting a Problem Detecting TroubleCorrective Actions Recommended Test EquipmentMaintenance 101 Maintenance 102 Page Ne t
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