Dell UPS 3750R User Manual
Dellt Online Rack UPS
3750W and 4200W
User's Guide
K804N, H952N, 746FR (DellR4200OLHVUS), J730N, K805N
J739N
w w w . d e l l . c o m | w w w . s u p p o r t . d e l l . c o m | w w w . d e l l u p s . 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
injury.
A CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury or in property damage incidents.
DANGER: Observe the following instruction to help prevent an imminently hazardous situation which, if not
avoided, will result in death or serious injury:
S This UPS contains LETHAL VOLTAGES. All repairs and service should be performed by
AUTHORIZED SERVICE PERSONNEL ONLY. There are NO USER SERVICEABLE PARTS
inside the UPS.
S This is Class A Interference Causing Equipment. In a residential environment, this product may cause
radio interference, in which case the user may be required to take additional measures.
Information in this document is subject to change without notice.
E 2011–2013 Dell Inc. All rights reserved.
Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.
Trademarks used in this text: Dell and the DELL logo are trademarks of Dell Inc.; National Electrical Code and NEC are registered
trademarks of National Fire Protection Association, Inc.; Phillips is a registered trademark of Phillips Screw Company.
Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their
products. Dell Inc. disclaims any proprietary interest in trademarks and trade names other than its own.
July 2013 • 164201789 6
Table of Contents
1 Introduction
Finding Information 8..............................................
2 Safety Warnings
3 Installation
Inspecting the Equipment 12.........................................
Unpacking the Cabinet 13...........................................
Identifying the UPS Rear Panels 15....................................
Identifying the UPS Front Panel 18.....................................
Rackmount Setup 19...............................................
Installing the EBM 25...............................................
Installing the UPS 26...............................................
Installing Remote Emergency Power-off 26..............................
Hardwiring the UPS Input 28.........................................
UPS Initial Startup 30...............................................
4 Operation
UPS Startup and Shutdown 32........................................
Starting the UPS 32.............................................
Starting the UPS on Battery 33.....................................
UPS Shutdown 33..............................................
Control Panel Functions 34..........................................
Changing the Language 35...........................................
Table of Contents
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Display Functions 35...............................................
Startup Screen 35..............................................
Screen Locked 36..............................................
UPS Status 36.................................................
Event Log 39...................................................
Measurements 40..............................................
Control Screens 41..............................................
Identification 42................................................
Settings 43....................................................
Transferring the UPS Between Modes 47...............................
Transferring from Normal to Bypass Mode 47.........................
Transferring from Bypass to Normal Mode 48.........................
Setting Power Strategy 48...........................................
Retrieving the Event Log 49..........................................
Behavior on Overload 49............................................
Configuring Load Segments 50........................................
Controlling Load Segments Through the Display 50.....................
Configuring Automatic Start Delay 51................................
Configuring Automatic on Battery Shutdown 52........................
Configuring Battery Settings 53.......................................
Configuring the UPS for an EBM 53.................................
Running Automatic Battery Tests 54................................
Configuring Automatic Battery Tests 54..............................
Configuring Automatic Restart 54.....................................
5 Additional UPS Features
RS-232 and USB Communication Ports 55...............................
Dell Network Management Card (Optional) 57...........................
Dell UPS Management Software 58....................................
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Table of Contents
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 62................................................
Updating the UPS Firmware 62.......................................
7 Specifications
8 Troubleshooting
Accessing Alarms and Conditions 67...................................
UPS Status Menu 67............................................
Event Log Menu 68..............................................
Typical Alarms and Conditions 68.....................................
Silencing the Alarm 72..............................................
Table of Contents
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1
Introduction
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.
With the Dell Online Rack UPS, you can safely eliminate the effects of power disturbances and guard
the integrity of your equipment. The UPS's flexibility to handle an array of network devices makes it the
perfect choice to protect your LANs, servers, workstations, and other electrical equipment.
Figure 1 shows the Dell Online Rack UPS.
Figure 1. The Dell Online Rack UPS
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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, utility frequency
independence, and generator compatibility.
S Selectable High Efficiency mode of operation.
S 4U size that fits any standard 48 cm (19”) rack.
S Start‐on‐battery capability for powering up the UPS even if utility power is not available.
S Maintenance is simplified by allowing the safe replacement of batteries without powering down the
UPS.
S Extended runtime with an optional External Battery Module (EBM).
S Emergency shutdown control through the Remote Emergency Power-off (REPO) ports.
S Two standard communication ports (USB and DB-9 serial port).
S Optional Dell Network Management Card with enhanced communication capabilities for
increased power protection and control.
S Advanced power management with the Dell UPS Management Software for graceful shutdowns
and power monitoring.
S Sequential shutdown and load management through separate receptacle groups called load
segments.
S Firmware that is easily upgradable without a service call.
S Backed by worldwide agency approvals.
Introduction
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7
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
S The user's guide for the Dell Network Management
Card
S Dell UPS Management Software
Find It Here
Dell UPS Disc
NOTE: Documentation and software updates can be
found at www.support.dell.com and at
www.dellups.com.
S Specifications
S How to configure UPS settings
S How to troubleshoot and solve problems
S How to install REPO control
S Safety instructions
S Regulatory information
S Recycling information
S Warranty information
S Terms and Conditions (U.S. only)
S End User License Agreement
S Support information Dell Support Website — www.support.dell.com
Dell UPS User's Guide
The user's guide is available on the Dell UPS disc and
on www.support.dell.com.
Safety, Environmental, and Regulatory Information
Dell Warranty and Support Information
NOTE: Select your region or business segment to view
the appropriate support site.
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Introduction
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.
DANGER: Observe the following instruction to help prevent an imminently hazardous situation which, if not
avoided, will result in death or serious injury:
S This UPS contains LETHAL VOLTAGES. All repairs and service should be performed by
AUTHORIZED SERVICE PERSONNEL ONLY. There are NO USER SERVICEABLE
PARTS inside the UPS.
WARNING: Observe the following instructions to help prevent a potentially hazardous situation which, if not
avoided, could result in death or injury:
S Only qualified service personnel (such as a licensed electrician) shall perform the electrical
installation. Risk of electrical shock.
S For UPS models with hardwired input, overcurrent protection for the output AC circuit(s) is to be
provided by others.
S For UPS models with hardwired input, suitably rated disconnect switches for the output AC
circuit(s) are to be provided by others.
S Output overcurrent protection and disconnect switch must be provided by others.
S This UPS contains its own energy source (batteries). The output receptacles may carry live voltage
even when the UPS is not connected to an AC supply.
S Do not remove or unplug the input cord when the UPS is turned on. This removes the safety
ground from the UPS and the equipment connected to the UPS.
S To reduce the risk of fire, connect only to a circuit provided with branch circuit overcurrent
protection with an ampere rating in accordance with the National Electrical Code® (NEC®),
ANSI/NFPA 70 or your local electrical code:
UPS Output Power 200V 208V 230V
3750W — 30A 25A
4200W 30A 30A 30A
Safety Warnings
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9
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).
S If the UPS requires any type of transportation, disconnect the internal UPS batteries before
transporting (see page 59).
CAUTION: Observe the following instructions to help prevent a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury or in property damage incidents:
S For PLUGABLE EQUIPMENT, the power outlet shall be installed near the equipment and shall
be easily accessible.
S Servicing of batteries should be performed or supervised by personnel knowledgeable about
batteries and the required precautions. Keep unauthorized personnel away from batteries.
S Batteries can present a risk of electrical shock or burn from high short-circuit current. The
following precautions should be observed: 1) Remove watches, rings, or other metal objects; 2) Use
tools with insulated handles; 3) Wear rubber gloves and boots; 4) Do not lay tools or metal parts
on top of batteries; 5) Disconnect the charging source prior to connecting or disconnecting battery
terminals.
S Determine if the battery is inadvertently grounded. If inadvertently grounded, remove the utility
source from the ground. Contact with any part of a grounded battery can result in electrical shock.
The likelihood of such shock can be reduced if such grounds are removed during installation and
maintenance (applicable to equipment and remote battery supplies not having a grounded supply
circuit).
S ELECTRIC ENERGY HAZARD. Do not attempt to alter any battery wiring or connectors.
Attempting to alter wiring can cause injury.
S Replace batteries with the same number and type of batteries as originally installed in the UPS.
S Proper disposal of batteries is required. Refer to your local codes for disposal requirements.
S Never dispose of batteries in a fire. Batteries may explode when exposed to flame.
S Do not open or mutilate the battery or batteries. Released electrolyte is harmful to the skin and
eyes and may be extremely toxic.
S The UPS may be connected to a maximum of one External Battery Module (EBM).
10
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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 combinations of equipment
with any other rack.
S Before installing your equipment in a rack, install all front and side stabilizers. Failure to install
stabilizers can allow the rack to tip over.
S Always load from the bottom up, and load the heaviest items first.
S Do not overload the AC power supply branch circuit that provides power to the rack.
S Do not stand or step on any components in the rack.
WARNING: Slide/rail mounted equipment is not to be used as a shelf or work space.
Do not add weight to slide/rail mounted equipment.
Safety Warnings
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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.
To start up or shut down the UPS, see:
S “Starting the UPS” on page 32
S “Starting the UPS on Battery” on page 33
S “UPS Shutdown” on page 33
4
Starting the UPS
To start the UPS:
1 Verify that the UPS power cord is plugged in.
2 Switch on utility power where the UPS is connected.
The UPS front panel display illuminates. The Dell startup screen changes to the UPS status
summary screen. The UPS front panel display shows the Standby mode icon .
3 Press the button on the UPS front panel.
After the startup is complete, the status icon changes to the appropriate icon based on the UPS
operating mode (see Table 3 on page 37).
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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 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.
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:
1 Press 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.
2 Press 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 67. 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 44.
UPS Shutdown
To shut down the UPS:
1 Press 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.
2 Switch 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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Operation
33
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. Dell Online Rack UPS Control Panel
There are three buttons on the control panel:
S Scroll up or back
S Select
S Scroll down or forward
Table 2 describes the functions of the LCD control buttons.
Table 2. Control Button Functions
Control Button
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Sequence Function
Press for less than one second Scroll back or up to the previous menu.
Press for longer than one
second
Press for less than one second Select the menu or option to be changed.
Press for longer than one
second
Press for less than one second Scroll forward or down to the next menu option.
Press both buttons for three
seconds
Press all three buttons for five
seconds
Operation
Return/exit back one menu layer without initiating a command
or changing a setting.
Save the setting being edited.
Temporarily disable the battery startup feature until the next
power cycle. The buzzer emits a one second beep to indicate
that Battery Start has been disabled.
Shortcut for defaulting the language back to English. The
buzzer emits a one second beep to indicate that the setting has
changed to English.
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 option stops flashing.
Changing the Language
Language selection is controlled through the user settings. See Table 6 page 43 for information on
available languages.
Display Functions
The UPS provides useful information about the UPS itself, load status, events, measurements,
identification, and settings through the front panel display.
Startup Screen
During startup, the Dell logo is the default screen. This startup screen displays for five seconds and then
defaults to the UPS status summary screen.
The display automatically returns to the UPS status summary screen when no button has been pushed
for 15 minutes and no other screen has been locked by a user. When you return to the status summary
screen, press the button for one second to exit back to the menu selections. Selecting UPS Status
from the main menu list enables you to scroll through all of the UPS status menu screens, including the
status summary screen.
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Operation
35
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. Applicable screens include the
status summary screen, measurement screens, active alarms, and the battery status screen.
UPS Status
The UPS status provides separate screens for the following information:
S Status summary, including mode and load
S Notice or alarm status, if any are present
S Battery status, including state and charge level
See Table 3 for examples of the UPS status summary screens. The status icon in the upper right corner
of each status summary screen conveys the UPS status or mode.
Basic operating modes include:
S Normal mode
S High-efficiency mode
S Battery mode
S Bypass mode
S Standby mode
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Operation
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