Dellt Online Rack UPS 3750W and 4200W User's Guide K804N, H952N, 746FR (DellR4200OLHVUS), J730N, K805N J739N www.dell.com | www.support.dell.com | www.dellups.
Notes and Warnings NOTE: A NOTE indicates important information that helps you make better use of your software. DANGER: A DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. WARNING: A WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or injury. A CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury or in property damage incidents.
Table of Contents 1 Introduction Finding Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Safety Warnings 3 Installation 4 8 Inspecting the Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Unpacking the Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Identifying the UPS Rear Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 4 | Table of Contents Display Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Startup Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 35 Screen Locked . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 UPS Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Event Log . . . . . . . . . . .
6 UPS Maintenance UPS and Battery Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Transporting the UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Storing the UPS and Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 When to Replace Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Testing Batteries . . . . . . . . . . . . .
Introduction 1 The Dellt Online Rack uninterruptible power system (UPS) protects your sensitive electronic equipment from basic power problems such as power failures, power sags, power surges, brownouts, and line noise. Power outages can occur when you least expect them and power quality can be erratic. These power problems have the potential to corrupt critical data, destroy unsaved work sessions, and damage hardware — causing hours of lost productivity and expensive repairs.
Providing outstanding performance and reliability, the UPS's unique benefits include: S Online UPS design with pure sine wave output. The UPS filters and regulates incoming AC power and provides consistent power to your equipment without draining the battery. S True online double-conversion technology with high power density, utility frequency independence, and generator compatibility. S Selectable High Efficiency mode of operation. S 4U size that fits any standard 48 cm (19”) rack.
Finding Information CAUTION: The Safety, Environmental, and Regulatory Information document provides important safety and regulatory information. What are You Looking For? S The user's guide for my UPS Find It Here Dell UPS Disc S The user's guide for the Dell Network Management Card S Dell UPS Management Software NOTE: Documentation and software updates can be found at www.support.dell.com and at www.dellups.com.
2 Safety Warnings CAUTION: Before performing the procedures in this document, read and follow the safety instructions and important regulatory information in your Safety, Environmental, and Regulatory Information document. IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS This manual contains important instructions that you should follow during installation and maintenance of the UPS and batteries. Please read all instructions before operating the equipment and save this manual for future reference.
S To reduce the risk of fire or electric shock, install this UPS in a temperature and humidity controlled, indoor environment, free of conductive contaminants. Ambient temperature must not exceed 40°C (104°F). Do not operate near water or excessive humidity (95% maximum). S Unpacking the cabinet in a low-temperature environment may cause condensation to occur in and on the cabinet. Do not install the cabinet until the inside and outside of the cabinet are absolutely dry (hazard of electric shock).
WARNING: Additional instructions for Rack-Mounted Systems S Your rack kit has been approved only for the rack cabinet provided. It is your responsibility to ensure that installation of the equipment into any other rack complies with all applicable standards. Dell disclaims all liability and warranties with respect to combinations of equipment with any other rack. S Before installing your equipment in a rack, install all front and side stabilizers.
4 Operation This chapter contains information on how to use the UPS, including: S UPS startup and shutdown S Control panel and display functions S Retrieving the Event Log S Transferring the UPS between modes S Setting power strategy S Behavior on overload S Configuring load segments, battery settings, and automatic restart UPS Startup and Shutdown NOTE: The button controls only the UPS output. The button has no effect on equipment connected to the UPS.
4 On 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 67. If there are no active alarms, a “No Active Alarms” message appears. 5 Verify that the Normal mode icon appears on the UPS status summary screen, indicating that the UPS is operating normally and any loads are powered.
Control Panel Functions The UPS has a three-button graphical LCD with dual color backlight. Standard backlight is used to light up the display with white text and a blue background. When the UPS has a critical alarm, the backlight changes the text to dark amber and the background to amber. See Figure 23. Figure 23.
To select an option: 1 When scrolling through the settings, the present setting displays for each selection. 2 Press the button to select the option. The current setting for the option flashes when selected. 3 Use the 4 Set the new option by holding the or buttons to toggle the available options. button again for one second. The option stops flashing. Changing the Language Language selection is controlled through the user settings. See Table 6 page 43 for information on available languages.
Screen Locked To lock a screen, press the button. The current view stays locked and does not automatically return to the default screen after time-out. When the screen is locked, the image of a key appears on the UPS status summary screen just to the left of the status icon. See Figure 24. Pushing any button returns the normal button function, unlocks the screen, and removes the lock symbol. Figure 24. A Locked Screen Only screens that have dynamic, real-time data updates can be locked.
Table 3. Status Summary Screens Status Summary Screen Description UPS Critical Failure The UPS is in Fault mode. The status icon and background are flashing. Battery Mode The status icon and background of the icon are flashing. An audible alarm (0.5 seconds on/4.5 seconds off) accompanies the switch to Battery mode. When the utility power returns, the UPS transfers to Normal mode operation while the battery recharges. Bypass Mode The UPS is operating in Bypass mode through the static bypass switch.
Table 3. Status Summary Screens (continued) Status Summary Screen Description Battery Test Status The status when the UPS is performing a battery test. Normal Mode The UPS is operating in Normal mode from utility power. The UPS monitors and charges the batteries as needed and provides filtered power protection to your equipment. High Efficiency Mode The UPS is operating in High Efficiency mode. Converter Mode The UPS is operating in Converter mode.
Table 4 describes the available battery status screens. Only one battery status is available at a time. Table 4. Battery Status Screens Battery Status Screen Description Battery charging Batteries are charged in constant current mode. Battery floating Batteries are charged in constant voltage mode. Battery resting Batteries are connected but are not being charged or discharged. (This is part of the normal charging cycle.) Battery discharging Batteries are discharging.
Measurements The measurements screens provide useful measurement information on: S Output watts VA, current, power factor, voltage, and frequency S Input voltage and frequency S Battery voltage and percentage charged S Instantaneous Headroom Watts remaining S Peak Headroom Watts (the remaining watts available to support the load at peak demand, includes the date and timestamp of the peak demand) S Peak Consumption Watts (the peak power demand on the UPS, includes the date and timestamp of the peak demand)
Control Screens Table 5 describes the available control screens. Table 5. Control Screens Control Screens Description Go to Bypass Transfers the UPS system to internal Bypass mode. When the Go to Bypass command is issued, the screen immediately shows the message for five seconds: Manual Bypass Command. The option then changes to Go to Normal. When the Go to Normal command is issued, the screen immediately shows the message Normal Mode Command Sent for five seconds.
Identification The identification screens display the following UPS information: S Type and model S Part number S Serial number S UPS firmware S Network Management Card (NMC) firmware NOTE: The NMC firmware screen displays only if the NMC is installed. See “Dell Network Management Card“ on page 57.
Settings Only available options are displayed. User settings are not protected by default. You can enable the password through the User Password setting. Table 6 displays the options that can be changed by the user. Table 6. Settings Description Available Settings Default Setting Change Language [English] [French] [German] [Spanish] [Japanese] [Simplified Chinese] [Russian] [Korean] [Traditional Chinese] English User Password [Enabled] [Disabled] Disabled If Enabled, the default password is USER.
Table 6. Settings (continued) Description Available Settings Default Setting Overload Alarm Level [10%] [20%] [30%]...[100%] 100% If 100%, the UPS issues an Output Overload alarm at load > 100%. NOTE: Output Overload Level 1 by default is set to 100% and is configurable from 10% to 100% in 10% increments through the LCD setting menu. This allows customers to be alerted before the UPS has reached its rated capacity limits.
Table 6. Settings (continued) Description Available Settings Default Setting Bypass Voltage Low Limit [-6%] [-7%]...[-20%] of nominal -15% of nominal The Bypass operation is disabled if the measured bypass voltage level is below the nominal output voltage (-15%). NOTE: The Qualify Bypass setting may overrule the Bypass Voltage Low Limit setting. Bypass Voltage High Limit [+6%] [+7%]...
Table 6. Settings (continued) Description Available Settings Default Setting Unsynchronized Transfers [Enabled] [Disabled] Enabled If Enabled, unsynchronized transfers to the Bypass are allowed. If Disabled, unsynchronized transfers to the Bypass are not allowed. NOTE: The Qualify Bypass setting may overrule the Unsynchronized Transfers setting. External Battery Module (EBM) [0] [1] 0 See “Configuring the UPS for an EBM” on page 53.
Table 6. Settings (continued) Description Available Settings Default Setting Reset Peak Headroom Watts [No] [Yes] No If No, no action. If Yes, the Peak Headroom Watts value is cleared and the date and time stamp for this statistic is set to the current date and time. Clear Event Log The number after “Total events” shows how many events are currently stored in the log. Press the button for one second to reset the event count to zero and clear the log.
Transferring from Bypass to Normal Mode To transfer from Bypass to Normal mode: 1 Press the button for one second to go to the main menu selection and scroll down to the Control menu using the button. 2 Press the 3 Select Go to Normal. button to enter the Control menu. The text on the screen changes to Normal Command Sent. The Normal mode icon indicating Normal mode.
Retrieving the Event Log To retrieve the Event Log through the display: 1 Press the button for one second to go to the main menu selection and scroll down to the Event Log menu using the button. 2 Press the 3 Scroll through the listed events, notices, and alarms using either the 4 To return to the main menu, press the 5 Press the button to enter the Event Log list. button or the button. button for one second. The Event Log displays. button. The UPS status screen displays.
Configuring Load Segments Load segments are sets of receptacles that can be controlled by the Dell UPS Management Software, the Dell Network Management Card, or through the LCD display, providing an orderly shutdown and startup of your equipment. For example, during a power outage, you can keep key pieces of equipment running while you turn off other equipment. This feature allows you to save battery power. Each Dell Online Rack model has two configurable load segments.
Configuring Automatic Start Delay You can configure the load segment to turn on automatically after the utility power returns, if it was shut down by: S The button S An external command with auto-restart option S Battery under voltage state S Automatic on battery shutdown command You can specify the restart delay time for each load segment: select zero seconds (0s is the default) to restart immediately, select 1–32767 seconds to delay for the specified time, or select Off.
Configuring Automatic on Battery Shutdown If set to Off (default), the load segment turns off only when commanded manually by the an external command, or through the display (Control > Load Segments). button, If set to zero seconds (0s), the load segment turns off automatically when the UPS on Battery state activates.
Configuring Battery Settings Configure the UPS settings for an installed EBM, including whether to run automatic battery tests and automatic restart configuration. Configuring the UPS for an EBM If the UPS is not configured for the EBM, the UPS reports less battery time remaining on the UPS front panel and to any remote software. You may receive a shutdown warning prematurely.
Running Automatic Battery Tests The automatic discharge test, enabled by default, runs during the transition from Float to Rest mode. After the test completes, the charge cycle restarts to completely charge the batteries and then continues to Rest mode normally. The automatic test runs approximately once every three months and does not run again until after three more Float to Rest mode transitions.
5 Additional UPS Features This chapter describes: S Communication ports (RS-232 and USB) S Dell Network Management Card S Dell UPS Management Software RS-232 and USB Communication Ports To establish communication between the UPS and a computer, connect your computer to one of the UPS communication ports using an appropriate communication cable (RS-232 cable not supplied). See “Identifying the UPS Rear Panels” on page 15 for the communication port locations.
Table 8. RS-232 Communication Port Pin Assignment Pin Signal Name 1 Unused — Tx Transmit to external device Out 3 Rx Receive from external device In Unused — Signal common (tied to chassis) — 6 Unused — 7 Unused — 8 Unused — 9 Unused — 5 GND *Unused pins must be left free on all models.
Dell Network Management Card (Optional) The Dell Online Rack UPS has one available communication bay, which supports the optional Dell Network Management Card. See Figure 26 for the location of the communication bay. It is not necessary to shut down the UPS before installing a communication card. 1 Remove the slot cover secured by two screws. Retain the screws. 2 Insert the communication card into the slot. 3 Secure the card with both screws. Figure 26.
Dell UPS Management Software Each Dell Online Rack UPS ships with Dell UPS Management Software. Dell UPS Management Software provides up-to-date graphics of UPS power and system data and power flow. It also gives you a complete record of critical power events, and it notifies you of important UPS or power information.
6 UPS Maintenance This chapter explains how to: S Care for the UPS and batteries S Transport the UPS S Store the UPS and batteries S Test the batteries S Update the UPS firmware UPS and Battery Care For the best preventive maintenance, keep the area around the UPS clean and dust‐free. If the atmosphere is very dusty, clean the outside of the system with a vacuum cleaner. For full battery life, keep the UPS at an ambient temperature of 25°C (77°F).
3 Remove the UPS front cover (see Figure 27). Figure 27. Removing the UPS Front Cover 4 Disconnect the internal battery connectors (see Figure 28). Figure 28.
5 Replace the UPS front cover (see Figure 29). Figure 29. Replacing the UPS Front Cover Storing the UPS and Batteries If you store the UPS for a long period, recharge the battery every 6 months by plugging the UPS into a power outlet. The batteries charge to 90% capacity in approximately 4 hours. However, it is recommended that the batteries charge for 48 hours after long-term storage. Check the battery recharge date on the shipping carton label.
Testing Batteries For a battery test to run: S The batteries must be fully charged. S The UPS must be in Normal mode or High Efficiency mode with no active alarms. S The load must be higher than 10%. To test batteries: 1 Plug the UPS into a power outlet for at least 48 hours to charge the batteries. 2 Press the button for one second to go to the main menu selection and scroll down to the Control menu using the button. 3 Press the 4 Use the 5 Press the button to enter the Control menu.
7 Specifications This chapter provides the following specifications: S Model list S Dimensions and weights S Electrical input and output S Environmental and safety S Battery S UPS block diagram Table 9. UPS Model List 200V Model UPS Models 208V Model DellR4200OLHVUS (746FR), 4200W 230V Models 3750R OL (K804N), 3750W 3750R OL (H952N), 3750W 4200R OL (J730N), 4200W 4200R OL (K805N), 4200W 3750R and 4200R EBM (J739N), 192 Vdc/30A External Battery Module (EBM) Table 10.
Table 11. Electrical Input Nominal Voltage Voltage Range 200V Models 208V Models 230V Models 200–240V 200–220V 220–240V 160–286V auto-sensing 155–255V auto-sensing 160–286V auto-sensing (Engineering Specifications) 50/60 Hz auto-sensing, ±3 Hz Nominal Frequency >95% Efficiency (Normal mode) Full-time EMI/RFI filtering Noise Filtering Connections 4200W: Hardwired 3750W: 2m, L6-30P attached power cord 3750W: Hardwired 4200W: Hardwired 4200W: Hardwired Table 12.
Table 13.
Table 14. Battery 3700W: (16) 12V, 7.2 Ah internal batteries; (16) 12V, 7.2 Ah EBM Configuration 4200W: (16) 12V, 7.2 Ah internal batteries; (16) 12V, 7.2 Ah EBM Battery Type CSB GP1272 7.
8 Troubleshooting The Dell Online Rack 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.
Event Log Menu From the Event Log menu, you can access the last 50 events, which includes events, notices, and alarms, arranged from newest to oldest. Events are silent conditions that are recorded in the Event Log as status information, such as “Clock Set Done.” Events do not require a response. Notices and alarms are records of when events occurred and, if applicable, when they were cleared. S Notices, including active notices, are recorded in the Event Log.
Table 15. Typical Alarms and Conditions (continued) Alarm or Condition Possible Cause Action Battery test did not run or was interrupted. One of the conditions listed in “Running Automatic Battery Tests” on page 54 was not present. Resolve the condition, then restart the test. The UPS does not transfer to Bypass mode. The bypass utility does not qualify. Check the bypass utility. The UPS is receiving bypass utility power that may be unstable or in brownout conditions. Bypass mode is disabled.
Table 15. Typical Alarms and Conditions (continued) Alarm or Condition Possible Cause Action Shutdown Imminent Communication to external devices stops because the UPS has entered a state where it may abruptly stop operating without further notice unless utility returns. The alarm is issued when the battery time remaining reaches zero. All connected devices should have already shut down gracefully. A weak battery string was detected during the last battery test. This is a warning notice.
Table 15. Typical Alarms and Conditions (continued) Alarm or Condition Possible Cause Action Output Overload The load level is at or has exceeded the configurable threshold limit for a Level 1 Overload condition. The UPS can support the load indefinitely at this load level. The load level is >101% and <110% of the UPS rating. Remove some of the equipment from the UPS. The UPS continues to operate, but transfers to Fault mode in two minutes.
Table 15. Typical Alarms and Conditions (continued) Alarm or Condition Possible Cause Action DC Link Over Voltage The link or rail voltage has exceeded its upper threshold limit. The UPS transfers to Bypass mode if supporting the load. The link or rail voltage has dropped below its lower threshold limit. The UPS transfers to Bypass mode if supporting the load. The UPS has detected a fault in the rectifier circuit while attempting recovery from Bypass mode or Converter mode.
