Liebert 30-130kVA manual Detailed Component Descriptions, Controls Hardware, Firmware

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Theory of Operation

2.2Detailed Component Descriptions

2.2.1Controls Hardware

The Npower UPS operator interface display system is designed to provide all of the information that is required for the operation of each UPS module. The following is a list of the hardware features:

1.The control logic performs automatic operations with minimal operator interface. The limited number of manual controls are easy-to-use.

2.Each Npower UPS cabinet is equipped with an easy-to-read liquid crystal display (LCD) screen. It presents information in a way that is easy to understand at an eye-level front panel location.

3.The display is controlled by a dedicated microprocessor with a non-volatile (EPROM) program and a battery-backed event memory.

4.The Npower can be ordered with communication ports for:

a.Transmission of present status information to remote terminals via a resident auto-dial communications program and an external or optional internal modem. This port also responds to inquiries of the UPS and history from the remote terminal.

b.Reporting UPS and history information in response to inquiries from a local terminal (no modem required).

c.Reporting information to a Liebert SiteScan Central Monitoring System.

d.Relaying selected alarm messages to a Liebert Remote Alarm Status Panel and to a separate terminal board for customer use.

e.Reporting key systems information via SNMP interface to a network monitoring system.

NOTE

All external communication devices are optional equipment.

Firmware

The operator interface display system software enables the operator to monitor the UPS system sta- tus, to control the power flow through the UPS, to monitor all of the meter readings, to execute the start-up, shutdown, and the load transfer procedures, to access the event history files, and to make adjustments to the programmable parameters. The following is a list of the firmware features:

1.The menu-driven software prompts the operator for input.

2.Step-by-step instructions assist the operator during the start-up, shutdown, and the load transfer procedures. This helps to eliminate operator errors.

3.Graphics-based mimic diagrams illustrate the position of internal switches and the power flow through the UPS system.

4.The Present Status screen reports information about the system's present status. The History Status screen chronicles the events leading up to and immediately after a fault. The Event History screen lists all of the alarm messages that have been logged over a period of time.

Refer to 3.0 - Operation for a description of the controls and indicators located on the Operator Con- trol Panel.

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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 Factory Backup and Service Assistance Safety PrecautionsReliability VersatilityModes Of Operation Input Power FailureNormal Load On UPS RechargeSYS. Status Mimic DisplayCHG Options Operator ControlsUPS Module Battery SystemGeneral Component Description Firmware Detailed Component DescriptionsControls Hardware Battery Charging Circuit Input Power FactorRectifier/Charger OperationBattery Charge Current Limiting Battery DisconnectBattery Equalize Charge Circuit Operation After End-of-dischargeUnbalanced Load Characteristics Nonlinear Load CharacteristicsStatic Bypass Switch Static Switch Backfeed ProtectionTransfer and Retransfer Conditions Operation Operation Navigation Buttons Operator Control PanelRotary switch Rotary SwitchUser Settings ConfigurationSecurity Access and Passwords Prev Cancel Save & ExitMenu Tree Display Screens and ProceduresSecondary Screens Primary ScreensMimic Display Screen Main Menu ScreenFaults / Alarms FaultsRect DischgSYS. Status Mimic DisplayInput Status DC BUS / Battery StatusFreq Temps DEG C Inlet AIR Outlet AIR Heat SinksOutput Load Status Freq .9 HZ 213 214 Phase DiffBypass Input Status Faults and Alarms Active Faults and AlarmsUser Shutdown EXI TNext System RatingsAuto Startup Manual StartupSecond Scenario Modify DC BUS SET Point Target and Ramp Values Input Modify Current Limit Target and Ramp ValuesServ Skip AbortExternal 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 ShutdownSystem Status Status ReportsHistory LOG Clear History Logs Clear Event LOG Status ReportsEvent Log Event LOGTotal 02 / 10 History LOGOUT-V IN-V Load Freq OutputInput of / UF SBS Line Trap SBS LoadExit Configuration ScreensInput Frequency DC BUS VoltsOutput Frequency PrevCancel Save & Exit System SettingsSystem Settings Current DateCurrent Time Next PREV. Cancel Save & ExitOrder Number TimeSingle / Dual Input Enter PasswordDual Output Transformer Bypass WIND. noOptions 10% Passive Filter SettingsActive Filter LBS Generator Auto Restart OptionsAlternate Power Pole FAN no Pulse Rectifier Battery GND Fault Green MachineLine Drop Compensation Prev ExitNext Exit Communication OptionsAuto Dial Pager Enabled Pager Number Pager PIN Pager Support ConfigurationModem Health Check Auto Dial YES Auto Dial OUT PagerPREV. Cancel Next PREV. Cancel Next Cancel 10 % Passive Filter SettingsFactory Settings Latching Alarm MaskDial FreezeAlarm / Fault Name Battery Fuse Fail Alarm / Fault NameAlarm / Fault Name F E Save & Exit CancelAuto Dial Customer Alarm InterfaceRemote LED Board # Customer Alarm InterfaceProgrammable Output Relay Board # STD SET Relay AssignmentsSTD SET User Defined UP Down ADD Remove Clear Exit Prog Relay #Manual Transfer Navigating ProtocolBattery Test Battery ManagementAuto Test Battery Duration Battery CycleBattery Equalizer MIN MAX WeeksAuto Enabled DisabledManual Stop StartTemperature Battery Temp Compensation ChargeBattery Temperature Compensation Charge Equalize Time PeriodBattery Cycle Monitor Battery Temp CompensationClear Summary YES / no Battery Cycle MonitorSummary Clear BCM Time Down Seconds Discharge CyclesSummary BATT. EOD Lower SET Point BATT. EOD Upper SET Point Battery Time Low WarningAuto Restart Battery SupplementBATT. Time LOW Warning Auto Restart Trigger Condition Alarm NotificationsSystem Status Monitoring System StatusSign OFF Date 10/30/01 System StatusNext Prev Save & Exit Sign OFF Date 10/30/02Accumulated Operating Hours on UPS Accumulated Backup HoursAccumulated Operating Hours on Bypass Accumulated # of Brown OutsFaults Faults, Alarms, StatusOn Battery Input Contact #1 Alarm / Fault Name F E DelayUP Down Description L Latching...D DialSummary 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 InterfacesAuto-Dial 1 RS-232 Port Local Reporting TerminalWorldwide Reporting Dial Out Pager Requesting InformationSiteScan Remote Alarm Status PanelOK to Transfer Setting Up External Communication DevicesLoad on Bypass Momentary Overloads Input Power Failure Load on BatteryOverloads Automatic OperationsAutomatic Transfers to Bypass Automatic Re-transfers to UPSAutomatic Module Off Line Maintenance Battery Maintenance Routine MaintenanceRecord Log Air FiltersBattery Safety Precautions Torque Requirements Battery voltage recordDetecting Trouble Reporting a ProblemCorrective Actions Recommended Test EquipmentMaintenance 101 Maintenance 102 Page Ne t
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