Dell H952N manual

Dell t Online Rack UPS 3750W and 4200W User's Guide K804N, H952N, J730N, K805N J739N w w w . d e l l . c o m | s u p p o r t . d e l l . c o m[...]

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 in[...]

3 Table of Contents | Table of Contents 1 Introduction Finding Information 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Safety Warnings 3 Installation Inspecting the Equipment 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unpacking the Cabinet 13 . . . . .[...]

4 | Table of Contents Display Functions 34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Startup Screen 34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Screen Locked 35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

5 Table of Contents | 6 UPS Maintenance UPS and Battery Care 58 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Transporting the UPS 58 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storing the UPS and Batteries 60 . . . . . . . . . . . . . . . . . . . . . . . . .[...]

6 | Introduction Introduction The Dell t 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[...]

7 Introduction | 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, [...]

8 | Introduction Finding Information CAUTION: The Safety, Environmental, and Regulatory Information document provides important safety and regulatory information. What are You Looking For? Find It Here S The user's guide for my UPS S The user's guide for the Dell Network Management Card S Dell UPS Management Software NOTE: Documentation a[...]

9 Safety Warnings | 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 sh[...]

10 | Safety Warnings 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 envir[...]

11 Safety Warnings | 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 combinatio[...]

12 | Installation Installation This chapter explains: S Equipment inspection S Unpacking the cabinet S UPS rear panels S UPS setup and installation, including the External Battery Module (EBM) S Remote Emergency Power-off (REPO) installation S Initial startup Inspecting the Equipment If any equipment has been damaged during shipment, keep the shipp[...]

13 Installation | Unpacking the Cabinet CAUTION: 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). CAUTION: The cabinet is heavy (see page 62). Use caution to unpack and mo[...]

14 | Installation 2 With one person on each side, carefully lift the cabinet out of the outer carton using the handles on the cardboard and set it on a flat, stable surface (see Figure 3). Place the cabinet in a protected area that has adequate airflow and is free of humidity, flammable gas, and corrosion. Figure 3. Lifting the Cabinet 3 Discard or[...]

15 Installation | Identifying the UPS Rear Panels This section shows the rear panels of the Dell Online Rack models. UPS Communication Bay 2m, L6-30P Power Cord USB Port One L6-30 Receptacle (Load Segment 1) REPO Ports RS-232 Port Ground Screw Two IEC 320-C19 and Two L6-20 Receptacles (Load Segment 2) EBM Connector Output Circuit Breaker Figure 4. [...]

16 | Installation UPS Communication Bay Input Terminal Block USB Port Eight IEC 320-C13 Receptacles (Load Segment 1) REPO Ports RS-232 Port Ground Screw Two IEC 320-C19 Receptacles (Load Segment 2) EBM Connector Output Circuit Breaker Figure 5. 3750W, 230V Rear Panel UPS Communication Bay Input Terminal Block USB Port Four IEC 320-C19 and Two L6-20[...]

17 Installation | UPS Communication Bay Input Terminal Block USB Port Six IEC 320-C13 Receptacles (Load Segment 2) REPO Ports RS-232 Port Ground Screw Four IEC 320-C19 Receptacles (Load Segment 1) EBM Connector Output Circuit Breaker Figure 7. 4200W, 230V Rear Panel Identifying the UPS Front Panel On/Off Button LCD Panel Scroll Button (Down or Forw[...]

18 | Installation Rackmount Setup CAUTION: The cabinet is heavy (see page 62): 1) Dell strongly recommends to remove the battery tray from the UPS before lifting. 2) Lifting the cabinets into the rack requires a minimum of two people. CAUTION: Removing the batteries should be performed or supervised by personnel knowledgeable about batteries and th[...]

19 Installation | Pull the battery trays out using the plastic tabs and remove the battery trays (see Figure 10). Figure 10. Removing the Battery Trays 2 If installing additional UPSs, repeat Step 1 for each cabinet. NOTE: The instructions are the same for square-hole racks and unthreaded, round-hole racks. The rails fit both rack styles. The squar[...]

20 | Installation 5 Attach the rails to the rack: Engage the back end of the rail until it fully seats on the vertical rack flange and the hook latch locks in place (see Figure 11). Pull the rail toward the front. Push the front end of the rail until it fully seats on the vertical rack flange and the hook latch locks in place. Figure 11. Installing[...]

21 Installation | 6 Slide the cabinet into the rack (see Figure 12). Repeat for any additional cabinets. Figure 12. Installing the Cabinet 7 Secure the front of the cabinet to the rack using the four thumbscrews on the mounting brackets (see Figure 13). Tighten by hand; do not use power tools. Repeat for any additional cabinets. Figure 13. Securing[...]

22 | Installation 8 Install the UPS battery trays (see Figure 14). Figure 14. Installing the Battery Trays[...]

23 Installation | 9 Replace the battery retaining bracket (see Figure 15). 10 Tighten the thumbscrew. Torque the screw to 0.7 Nm (6.2 lb in). NOTE: A small amount of arcing may occur when connecting the batteries. This is normal and does not damage the unit or present any safety concern. 11 Connect the internal battery connectors and attach to the [...]

24 | Installation 12 Install the UPS front cover (see Figure 16). Figure 16. Installing the UPS Front Cover Installing the EBM NOTE: A small amount of arcing may occur when connecting an EBM to the UPS. This is normal and will not harm personnel. Insert the EBM cable into the UPS battery connector quickly and firmly. To install the optional EBM: 1 [...]

25 Installation | Installing the UPS To install the UPS: 1 If you plan to use Dell UPS Management Software, connect your computer to the USB port using the supplied cable. For more information about communication options, see page 54. 2 If your rack has conductors for grounding or bonding of ungrounded metal parts, connect the ground cable (not sup[...]

26 | Installation CAUTION: To ensure the UPS stops supplying power to the load during any mode of operation, the input power must be disconnected from the UPS when the emergency power-off function is activated. NOTE: For Europe, the emergency switch requirements are detailed in Harmonized document HD-384-48 S1, “Electrical Installation of the Bui[...]

27 Installation | NOTE: A separate contact must simultaneously cause UPS input AC power to be removed. 5 Connect the switch or circuit to the REPO connector on the UPS rear panel using insulated 0.75 mm 2 –0.5 mm 2 (18–20 AWG) wire. Optional. If you are daisy-chaining the REPO function with another UPS, connect the REPO port labeled “OUT” t[...]

28 | Installation AC Mains Wall 2-pole Breaker UPS Line Neutral Figure 19. Circuit Breaker Diagram To hardwire the UPS input: 1 Switch off utility power at the distribution point where the UPS will be connected. Be absolutely sure there is no power. 2 Remove the terminal block cover (four screws) and retain. Figure 20. Removing the Terminal Block C[...]

29 Installation | 5 Insert the conduit through the wiring access entry and attach the conduit fitting to the panel. Strip 0.5 ” (1.5 cm) of insulation from the end of each incoming wire. 6 Connect the input and ground wires to the terminal block according to Figure 21 and Table 1. Figure 21. UPS Input Terminal Block Table 1. UPS Wiring Specificat[...]

30 | Installation 4 For 3750W/208V models only. Verify that the power input to the UPS has a minimum of 30A upstream overcurrent protection. Plug the UPS power cord into a power outlet. The UPS front panel display illuminates. The Dell startup screen changes to the UPS status summary screen. The UPS front panel display shows the flashing Standby ic[...]

31 Operation | 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[...]

32 | Operation 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 66. 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[...]

33 Operation | 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 22. Figure 22. Dell Online Rack U[...]

34 | Operation 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 or buttons to toggle the available options. 4 Set the new option by holding the button again for one second. The opti[...]

35 Operation | 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 23. Pushing any button returns the normal button[...]

36 | Operation 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 [...]

37 Operation | 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[...]

38 | Operation 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 conne[...]

39 Operation | 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 p[...]

40 | Operation 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 t[...]

41 Operation | 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 56.[...]

42 | Operation 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] [...]

43 Operation | Table 6. Settings (continued) Description Default Setting Available Settings Overload Alarm Level [10%] [20%] [30%]...[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. T[...]

44 | Operation Table 6. Settings (continued) Description Default Setting Available Settings Bypass Voltage Low Limit [-6%] [-7%]...[-20%] 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. -15[...]

45 Operation | Table 6. Settings (continued) Description Default Setting Available Settings Unsynchronized Transfers [Enabled] [Disabled] 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 sett[...]

46 | Operation Table 6. Settings (continued) Description Default Setting Available Settings Reset Peak Headroom Watts [No] [Yes] 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. No Clear Event Log The number after “Total events” shows how many [...]

47 Operation | 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 button to enter the Control menu. 3 Select Go to Normal. The text on the screen changes to Normal Command Sent. The Normal[...]

48 | Operation 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 button to enter the Event Log list. 3 Scroll through the listed events, notices, and alarms using either the button or the butto[...]

49 Operation | 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 y[...]

50 | Operation 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 s[...]

51 Operation | Configuring Automatic on Battery Shutdown If set to Off (default), the load segment turns off only when commanded manually by the button, an external command, or through the display (Control > Load Segments). If set to zero seconds (0s), the load segment turns off automatically when the UPS on Battery state activates. If you selec[...]

52 | Operation 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[...]

53 Operation | 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 n[...]

54 | Additional UPS Features 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 appropria[...]

55 Additional UPS Features | Table 8. RS-232 Communication Port Pin Assignment Pin Signal Name Function Direction from the UPS 1 Unused — 2 Tx Transmit to external device Out 3 Rx Receive from external device In 4 Unused — 5 GND Signal common (tied to chassis) — 6 Unused — 7 Unused — 8 Unused — 9 Unused — *Unused pins must be left fre[...]

56 | Additional UPS Features 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 25 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[...]

57 Additional UPS Features | 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. I[...]

58 | UPS Maintenance 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 [...]

59 UPS Maintenance | 3 Remove the UPS front cover (see Figure 26). Figure 26. Removing the UPS Front Cover 4 Disconnect the internal battery connectors (see Figure 27). Figure 27. Disconnecting the Internal Battery Connector[...]

60 | UPS Maintenance 5 Replace the UPS front cover (see Figure 28). Figure 28. 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[...]

61 UPS Maintenance | 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 s[...]

62 | Specifications 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 208V Model 230V Models UPS Models 3750R OL (K804N), 3750W 4700R OL (J730N), 4200W 3750R OL (H952N), 3750W 4200R OL[...]

63 Specifications | Table 11. Electrical Input 208V Models 230V Models Nominal Voltage 200–220V 220–240V Voltage Range (Engineering Specifications) 155–255V auto-sensing 160–286V auto-sensing Nominal Frequency 50/60 Hz auto-sensing, ± 3 Hz Efficiency (Normal mode) >95% Noise Filtering Full-time EMI/RFI filtering Connections 3750W: 2m, L[...]

64 | Specifications Table 13. Environmental and Safety 208V Models 230V Models Operating Temperature Up to 1,500 meters: 0°C to 40°C (32°F to 104°F); UL tested 25°C (77°F) Above 1,500 meters: 0°C to 35°C (32°F to 95°F) Transit/Storage Temperature -15°C to 60°C (5°F to 140°F) Relative Humidity 0–95% noncondensing Operating Altitude U[...]

65 Specifications | Table 14. Battery Configuration 3700W: (16) 12V, 7.2 Ah internal batteries; (16) 12V, 7.2 Ah EBM 4200W: (16) 12V, 7.2 Ah internal batteries; (16) 12V, 7.2 Ah EBM Battery Type CSB GP1272 7.2 Ah or YUASA NP7-12 7Ah Voltage 3750W: 192 Vdc internal, 192 Vdc/30A EBM 4200W: 192 Vdc internal, 192 Vdc/30A EBM Fuses UPS: (1) 30A fuse EBM[...]

66 | Troubleshooting 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 ala[...]

67 Troubleshooting | 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 reco[...]

68 | Troubleshooting Table 15. Typical Alarms and Conditions (continued) Alarm or Condition Action Possible Cause Battery test did not run or was interrupted. One of the conditions listed in “Running Automatic Battery Tests” on page 53 was not present. Resolve the condition, then restart the test. The UPS does not transfer to Bypass mode. The b[...]

69 Troubleshooting | Table 15. Typical Alarms and Conditions (continued) Alarm or Condition Action Possible Cause Shutdown Imminent (Alarm 55) Continuous Alarm 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 b[...]

70 | Troubleshooting Table 15. Typical Alarms and Conditions (continued) Alarm or Condition Action Possible Cause Output Overload (Alarm 25) Continuous Alarm 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 alarm clears when the [...]

71 Troubleshooting | Table 15. Typical Alarms and Conditions (continued) Alarm or Condition Action Possible Cause DC Link Over Voltage (Alarm 28) Continuous Alarm The link or rail voltage has exceeded its upper threshold limit. The UPS transfers to Bypass mode if supporting the load. DC Link Under Voltage (Alarm 29) Continuous Alarm The link or rai[...]