Dell H900N, K789N, K788N, K806N Troubleshooting, Accessing Alarms and Conditions, UPS Status Menu

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Troubleshooting

The Dell Tower UPS is designed for durable, automatic operation and issues alarms to alert you whenever potential operating problems occur. Usually the alarms shown by the control panel do not mean that the output power is affected. Instead, they are preventive alarms intended to alert the user. Active alarms and active notices are accompanied by an audible buzzer.

Accessing Alarms and Conditions

The control panel provides troubleshooting information from two main menus:

SUPS Status menu: access to all active alarms

SEvent Log menu: access to the most recent 50 events, which may include active and closed alarms

UPS Status Menu

From the UPS Status menu, you can access the following screens for troubleshooting information:

SStatus summary screen: The status summary screen provides information on both mode and load. When there is a critical alarm, the status summary screen changes from its normal white text on a blue background to dark amber text on an amber background.

SNotice or alarm screens: A separate screen appears for each active notice or alarm. If there are no active alarms or notices, the display reads “No Active Alarms.”

SBattery status screen: The battery status screen indicates the battery charge mode, the percent the battery is charged, and the runtime with the present load level.

NOTE: When an alarm is active, the control panel automatically displays an active alarm screen unless the screen lock is enabled by the user.

To access troubleshooting information using the UPS Status menu:

1Press the button for one second to go to the main menu selection.

2Press the button to access the UPS Status menu.

3Press the button to access the UPS status summary screen.

The UPS status summary screen provides load information. The status icon indicates the UPS operating mode (see Table 4 on page 32).

4Use the button to scroll through the active notice and active alarm screens.

5After scrolling through all alarms, press the button to access the Battery Status screen.

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Contents Users Guide September 2009 S 164201786 Table of Contents Network Transient Protector Dell UPS Management Software RS-232 and USB Communication PortsUPS Status Menu Event Log Menu Testing BatteriesDell Tower UPS IntroductionIntroduction What are You Looking For? Find It Here Finding InformationUPS Output Power Safety WarningsSafety Warnings Inspecting the Equipment InstallationUnpacking the System Unpacking the System100/120V Rear Panel Identifying the UPS Rear Panels120V Rear Panel 120V, 1500W/100V Rear Panel Identifying the UPS Front Panel Removing the UPS Front Cover Connecting the UPS Internal BatteryConnect the internal battery connector see Figure Removing the Battery Connector Cover External Battery Module InstallationInstalling the Battery Connector Cover Typical UPS Installation 120V Model Shown Installing the UPSUPS Initial Startup Minimum Upstream Circuit Breaker Rating UPS Output PowerPower Cord Ratings Rating Australia Optional GB2099 to C13 Connecting the Power Cord Installation Starting the UPS OperationUPS Startup and Shutdown UPS Shutdown Starting the UPS on BatteryControl Button Functions Control Button Sequence Control Panel FunctionsStartup Screen Changing the LanguageDisplay Functions UPS Status Screen LockedBattery Test Status Battery ModeBad Battery Detected or Battery Disconnected UPS General Alarms ActiveBattery Status Screens Description Status Summary Screens Description Normal ModeStandby Mode Measurements Event LogControl Screens Description Control ScreensIdentification SettingsSettings Description Available Settings Default Setting Settings Description Available Settings Default Setting Settings Description Available Settings Default Setting Settings Description Available Settings Default Setting Behavior on Overload Retrieving the Event LogControlling Load Segments Through the Display Configuring Load SegmentsConfiguring Automatic Start Delay Configuring Automatic on Battery Shutdown Configuring the UPS for an EBM Configuring Battery SettingsConfiguring Automatic Battery Tests Configuring Automatic RestartRunning Automatic Battery Tests RS-232 and USB Communication Ports Additional UPS FeaturesGND RS-232 Communication Port Pin AssignmentDell Network Management Card Dell Network Management Card OptionalDell UPS Management Software Network Transient ProtectorUPS and Battery Care UPS MaintenanceTransporting the UPS Disconnect the internal battery connector see Figure Storing the UPS and Batteries When to Replace BatteriesTesting Batteries Updating the UPS Firmware Specifications Nominal Voltage Efficiency Normal modeElectrical Output 100/120V Models 230V Models Power Levels Electrical InputSafety Conformance Environmental and SafetyOperating Temperature Temperature Relative HumidityFuses Battery ConfigurationBattery Runtimes VoltageUPS Status Menu TroubleshootingAccessing Alarms and Conditions Event Log Menu Typical Alarms and ConditionsAction Troubleshooting Silencing the Alarm
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Dell's power supply units (PSUs) are essential components for Dell servers and workstations, providing reliable power solutions tailored to meet different demands. Among these, the 500W, 1000W, and 1920W/1500W power supplies stand out for their efficiency, performance, and advanced features tailored to various IT environments.

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