Dell J730N, K805N, J739N, K804N, 3750W, H952N, 4200W manual Starting the UPS on Battery, UPS Shutdown

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4On the UPS status summary screen, press the button to check for active alarms or notices. Resolve any active alarms before continuing. See “Troubleshooting” on page 66.

If there are no active alarms, a “No Active Alarms” message appears.

5Verify that the Normal mode icon appears on the UPS status summary screen, indicating that the UPS is operating normally and any loads are powered.

Starting the UPS on Battery

NOTE: Before using this feature, the UPS must have been powered by utility power with output enabled at least once.

NOTE: Utility power cannot be present at startup.

To start the UPS on battery:

1Press the button on the UPS front panel until the UPS beeps.

The UPS front panel display illuminates, and the UPS begins the startup sequence.

The UPS cycles through Standby mode to Battery mode. The Battery mode icon displays on the UPS status summary screen. The UPS supplies power to your equipment.

NOTE: The UPS does not assume the load if you press the button less than three seconds.

2Press the button to check for active alarms or notices.

Ignore the “UPS on Battery” notice and notices that indicate missing utility power. Resolve other active alarms before continuing. See “Troubleshooting” on page 66. After correcting the alarms, restart if necessary.

You can prevent a battery start (requiring utility power at the next startup) by simultaneously pressing the and buttons for three seconds. Battery start can be disabled. See the Start on Battery setting on page 43.

UPS Shutdown

To shut down the UPS:

1Press the button on the front panel for three seconds.

The UPS begins to beep. The UPS transfers to Standby mode.

NOTE: Releasing the button before three seconds returns the UPS to its original operating state.

2Switch off utility power where the UPS is connected.

After utility power is removed, the UPS fully shuts down in ten seconds.

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Contents Users Guide September 2009 164201789 Table of Contents RS-232 and USB Communication Ports Dell UPS Management SoftwareTesting Batteries UPS Status Menu Event Log MenuIntroduction Dell Online Rack UPSIntroduction Finding Information What are You Looking For? Find It HereSafety Warnings UPS Output PowerSafety Warnings Safety Warnings Installation Inspecting the EquipmentUnpacking the Cabinet Unpacking the CabinetLifting the Cabinet Identifying the UPS Rear Panels 208V Rear Panel230V Rear Panel Identifying the UPS Front Panel Dell Online Rack UPS Front PanelRackmount Setup Removing the Battery Retaining BracketRemoving the Battery Trays Installing the Rails Installing the Cabinet Install the UPS battery trays see Figure Installation Installing the EBM Installing the UPS Front CoverInstalling the UPS Installing Remote Emergency Power-offRepo Connections Wire Function Repo ConnectorHardwiring the UPS Input Circuit Breaker Diagram UPS Input Terminal Block UPS Wiring Specifications UPS Initial StartupInstallation Starting the UPS OperationUPS Startup and Shutdown Starting the UPS on Battery UPS ShutdownControl Panel Functions Control Button Functions Control Button SequenceStartup Screen Changing the LanguageDisplay Functions Screen Locked UPS StatusBattery Mode Bypass ModeBad Battery Detected or Battery Disconnected UPS General Alarms ActiveStatus Summary Screens Description Battery Test Status Normal ModeHigh Efficiency Mode Converter ModeBattery Status Screens Description Event LogMeasurements Control Screens Control Screens DescriptionIdentification Settings Settings Description Available Settings Default SettingSettings Description Available Settings Default Setting Settings Description Available Settings Default Setting Settings Description Available Settings Default Setting Transferring from Normal to Bypass Mode Transferring the UPS Between ModesSetting Power Strategy Transferring from Bypass to Normal ModeRetrieving the Event Log Behavior on OverloadConfiguring Load Segments Controlling Load Segments Through the DisplayConfiguring Automatic Start Delay Configuring Automatic on Battery Shutdown Configuring Battery Settings Configuring the UPS for an EBMConfiguring Automatic Battery Tests Configuring Automatic RestartRunning Automatic Battery Tests Additional UPS Features RS-232 and USB Communication PortsRS-232 Communication Port Pin Assignment GNDDell Network Management Card Optional Dell Network Management CardDell UPS Management Software Transporting the UPS UPS MaintenanceUPS and Battery Care Remove the UPS front cover see Figure When to Replace Batteries Storing the UPS and BatteriesTesting Batteries Updating the UPS FirmwareSpecifications Efficiency Normal mode Power LevelsRegulation Normal mode Regulation Battery modeEnvironmental and Safety Operating TemperatureTemperature Relative Humidity Safety ConformanceBattery Configuration Battery TypeBattery Runtimes VoltageUPS Status Menu TroubleshootingAccessing Alarms and Conditions Typical Alarms and Conditions Event Log MenuAction Troubleshooting Troubleshooting Silencing the Alarm
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H952N, K804N, J739N, K805N, J730N specifications

The Dell J730N, K805N, J739N, 4200W, and 3750W are all high-performance server power supplies designed to provide reliable power solutions for various Dell server models. These power supplies are engineered to ensure maximum uptime, energy efficiency, and seamless operation in data center environments.

Starting with the Dell J730N, this power supply unit is known for its robust design and 730W output capacity. It features hot-swappable functionality, allowing for easy replacement without powering down the server. This is crucial for mission-critical applications where downtime can lead to significant operational challenges. The J730N is compatible with various Dell servers, making it a versatile choice for data centers looking to enhance their power management.

The K805N power supply is another excellent option with a power output of 800W. It incorporates advanced features such as Automatic Voltage Regulation (AVR), which ensures that the output voltage remains stable even during fluctuations in the input voltage. This technology is vital for protecting sensitive server components from potential damage caused by power inconsistencies. Additionally, the K805N is designed with a modular approach, allowing for easy integration and scalability.

The Dell J739N exemplifies Dell’s commitment to energy efficiency with its 750W rating. It meets stringent efficiency standards, making it an environmentally friendly option that helps reduce power consumption and operational costs. The J739N is often used in combination with other Dell equipment to create a cohesive and efficient power management strategy. Its reliability is bolstered by a combination of intelligent internal monitoring systems that detect and address power anomalies.

The 4200W and 3750W power supplies represent higher capacity options for larger, more demanding server environments. These units are equipped with multiple redundant power circuits, ensuring that if one circuit fails, others will continue to supply power without interruption. The advanced cooling technologies utilized in these models also enhance performance and reliability by preventing overheating.

Overall, these Dell power supplies reflect the highest standards in design and technology. They are integral to maintaining the health and efficiency of server operations, contributing significantly to the resilience and effectiveness of data-centered environments. With a focus on compatibility, energy efficiency, and reliability, the J730N, K805N, J739N, 4200W, and 3750W power supplies remain essential components in modern IT infrastructures.
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