NOTE: A NOTE indicates important information that helps you make better use of your product.
CAUTION: A CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury or in property damage incidents.
WARNING: A WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or
injury.
DANGER: A DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious
injury.
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 rPDU contains LETHAL VOLTAGES. All repairs and service should be performed by
AUTHORIZED SERVICE PERSONNEL ONLY. There are NO USER SERVICEABLE PARTS inside
the rPDU.
Information in this document is subject to change without notice.
E 2010 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.; Internet Explorer and HyperTerminal are registered trademarks of Microsoft; Firefox is a registered
trademark of Mozilla.
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.
The Dellt Metered Rack Power Distribution Unit (rPDU) models are installed at the rear in a rack enclosure.
The rack enclosure is designed to hold and protect server, network, and data storage equipment. The rPDUs
distribute power in the rack.
The rPDUs are mounted vertically in a recessed channel, providing more room for cabling within the rack
enclosure. The recessed location distances the rPDU from the other equipment and does not interfere with the
airflow in the rack enclosure.
1
Figure 1. Rack Enclosure with rPDU Installed
Introduction
|
7
Providing outstanding performance and reliability, the rPDU benefits include the following:
S The rPDU can be installed as either 42U or 48U applications (depending on the model).
S The rPDU can be mounted using either factory-installed standard mounting pegs on the back of the rPDU,
or turned 90° by using user-installed deep mounting pegs on the side of the rPDU.
S Color-coded silk screening for outlet receptacles and circuit breakers clearly associate circuit breakers with
the receptacles they protect.
S The rPDU models provide several configurations of IEC 320 C-13 and IEC 320 C-19 outlet receptacles on
the front panel.
S The attached power cords for all models are 3m (10 ft) with IEC60309 input connector plugs.
S All receptacles, circuit breakers, ports, ground bonding point, and user interfaces are located on the front
panel of the rPDU for easy access.
S The rPDUs models are configured with either Delta or Wye topology.
S The rPDU provides an environmental monitoring sensor port, a dry contact sensor port, a 10/100 Base-T
Ethernet port, and a serial communication port.
S The LCD panel provides pushbutton controls for accessing performance monitoring data, event
notifications, and user-configured provisioning options.
S The rPDU provides an internal Dellt Network Management Card (NMC) for network communications.
The following options are available for the rPDU:
S Side- and front-mounted strain relief brackets for secure power cord retention (bracket type depends on
model)
S Dry contact sensor
S Temperature sensor
S Temperature and humidity sensor
The rPDU provides the following meters and measurements for reporting operational status:
S Input Voltage (V)
S Input Frequency in Hertz (Hz)
S Input Current in Amperes (A)
S Input Watts (W)
S Input Volt-amperes (VA)
S Instantaneous Headroom Watts
S Peak Headroom Watts (with time stamp)
S Peak Consumption Watts (with time stamp)
S Cumulative Kilowatt per Hour (with time stamp)
S Temperature (if an optional temperature sensor is installed)
S Humidity (if an optional humidity sensor is installed)
S Real-Time Clock
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8
Introduction
Physical Description
Installation Configurations
The rPDUs can be mounted vertically in several installation configurations and orientations to accommodate
different site needs. Either one or two rPDUs can be installed in each rPDU tray in the back of a rack enclosure,
providing a total of up to four rPDUs (see Figure 2).
NOTE:
When installing two rPDUs in a side-by-side configuration, you are not restricted to installing the same model.
See Figure 2.
Figure 2. One or Two rPDUs Installed in the rPDU Tray
The standard mounting orientation for the rPDU is 180°. This is a snap-in, tooless installation. Two
factory-installed mounting pegs are inserted in mounting keyholes on the wall of the rPDU tray.
NOTE:
The 180° orientation means that the mounting surface (the back of the rPDU) is 180° in relation to the front
receptacles.
The rPDU can also be mounted in a 90° orientation. For this configuration, two deep mounting pegs (provided)
are user-installed before mounting the rPDU in the rPDU tray (see Figure 3).
NOTE:
The 90° orientation means that the mounting surface (the side of the rPDU) is 90° in relation to the front
receptacles.
Introduction
|
9
rPDU installed using deep mounting pegs on the side (90°)rPDU installed using standard mounting pegs on the back (180°)
Figure 3. Standard 180° and 90° rPDU Installation
Strain Relief Brackets
You can install optional strain relief brackets on any rPDU model. Models with dense receptacle configurations
on the front panel have mounting holes for side-mounted relief brackets only. Models with spacing between
outlet groupings have mounting holes for both side- and front-mounted relief brackets.
The strain relief bracket kits include three brackets and mounting hardware. The side-mounted brackets can be
installed on either side of the rPDU. The front-mounted strain relief brackets are adjustable.
Ground Bonding Point
The external ground bonding point located on the rPDU front panel may be used to bond other conductive
metal components in the rack enclosure to a ground reference point for signaling or other functional purposes.
This bonding point can also be used to bond the rPDU to a known earthed reference terminal in the building.
Per international regulatory requirements, the primary Safety Earth Bond connection is contained in the rPDU
as an integral part of the branch circuit cabling and plug.
Delta and Wye Configurations
The rPDUs are configured in either Delta or Wye topology.
S The Delta configuration uses a four-wire input connector plug with three phase wires, a protective earth
(ground) wire, and no neutral wire. This is commonly expressed as 3W + PE (Delta).
S The Wye configuration uses a five-wire input connector plug with three phase wires, a protective earth
(ground) wire, and a neutral wire. This is commonly expressed as 3W + N + PE (Wye).
Table 1 on page 11 lists the Delta or Wye configuration for each model.
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10
Introduction
Attached Input Connections
All models use an IEC60309 input connector plug on a 3m (10 ft) cable attached to the rPDU. The type of input
connector plug varies by model to accommodate different amperage ratings and Delta or Wye configurations.
The input connector plugs have Ingress Protection (IP) ratings that specify the degree of environmental
protection for electrical equipment. All models use IEC60309 input connector plugs that are either splash
resistant (S) or waterproof (W).
NOTE:
Splash resistant plugs are IP-rated at IP 44, which means the plug is protected against solid objects less than
1.0 mm in diameter.
NOTE: Waterproof plugs are IP-rated at IP 67, which means the plugs are watertight, splashproof, and dust tight.
Standard IEC60309 reference codes provide a useful summary of the input connector plug specifications. The
code includes the number of pins, the maximum amperage rating, the type of connection, the alignment tab
clock position, and the protective classification.
Table 1 lists the standard IEC60309 reference codes for each model.
Table 1. Metered rPDU IEC60309 Codes
Model
DELLM0001460P9W460P9W
DELLM001A460P9W460P9W
DELLM0002532P6S532P6S
DELLM0003516P6S516P6S
DELLM0004460P9W460P9W
DELLM004A460P9W460P9W
DELLM0005532P6S532P6S
DELLM0006460P9W460P9W
DELLM0007532P6S532P6S
IEC
Reference
Code
Delta 4-Pin Plug (4)
or
Wye 5-Pin Plug (5)
Maximum
Amperage (A)
Rating
Plug (P)
Receptacle/Socket
(R)
or Connector (C)
Clock
Position PE
(6 or 9)
Waterproof (W)
or
Splash Resistant (S)
Circuit Breakers
NOTE: The DELLM0003 model does not have circuit breakers.
There are six 20A circuit breakers on the rPDU (two circuit breakers per phase protecting the group of outlet
receptacles for that phase). Circuit breakers on the rPDU trip automatically when a power overload is detected.
Standard rPDU circuit breakers have Type C trip characteristics.
The rPDU monitoring firmware provides warnings that there is potential for overload and alarms if an overload
occurs. These thresholds are user-configurable. To reset the breakers after an overload, flip the breaker switch to
the ON position.
Circuit breakers and outlet receptacles are numbered and color-coded on the front panel to show the association
between breakers and the receptacles they protect. The phases (L1, L2, and L3) and protecting circuit breakers
(CB1 through CB6) are labeled on both circuit breaker groups and outlet receptacle groups (see Figure 4).
Introduction
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11
LCD Panel and Pushbutton Controls
The rPDU interface provides access to real-time performance monitoring and event notification data through
the LCD panel and pushbutton controls. This interface is also used to set user-configurable values, such as alarm
or warning thresholds. See Figure 4.
L1
L2
L3
Figure 4. LCD Front Panel
Phase 1: CB1 and CB2
Phase 2: CB3 and CB4
Phase 3: CB5 and CB6
Communication and Monitoring Ports
Two communication ports are provided. The rPDU has a serial port for an RJ-45 to DB-9 cable (provided) for
serial communication. The rPDU also has a 10/100 Base-T Ethernet port for network communication.
The network communication channel can be used to perform firmware upgrades (flash upgrades) over the
network. Upgrades can be performed for rPDUs installed in the rack enclosure while they are powered.
Two monitoring ports are provided. The following optional monitoring sensors can be installed:
S Dry contact sensor
S Temperature-only or combined temperature and humidity sensor
12
|
Introduction
Finding Information
CAUTION: The Safety, Environmental, and Regulatory Information document provides important safety and regulatory
information.
What are You Looking For?
S Dell Metered Rack Power Distribution Unit (rPDU)
User's Guide
S Other rPDU documentation, such as Product Overview
documents
S Software updatesSoftware updates can be found at:
Find It Here
Documentation can be found at:
support.dell.com/support/edocs/ACC/PDU/
support.dell.com
S How to install the rPDU
S rPDU specifications
S How to configure rPDU settings
S How to operate the rPDU
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 informationDell Support Website — support.dell.com
Dell Metered rPDU User's Guide
The user's guide is available at:
support.dell.com/support/edocs/ACC/PDU/
Safety, Environmental, and Regulatory Information
Dell Warranty and Support Information
NOTE: Select your region or business segment to view the
appropriate support site.
Introduction
|
13
Safety Warnings
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important instructions that you should follow during installation and operation of the Dell Metered Rack
Power Distribution Unit (rPDU). Please read all instructions before operating the equipment and save this manual for future
reference.
DANGER:
This rPDU contains LETHAL VOLTAGES. All repairs and service should be performed by AUTHORIZED SERVICE PERSONNEL
ONLY.
CAUTION:
S To reduce the risk of fire or electric shock, install this rPDU in a temperature and humidity controlled, indoor
environment, free of conductive contaminants. Ambient temperature must not exceed 50°C (122°F). Do not operate
near water or excessive humidity (95% maximum).
S To comply with international standards and wiring regulations, the total equipment connected to the output of this
rPDU must not have an earth leakage current greater than 3.5 milliamperes.
S For PLUGGABLE EQUIPMENT, a readily accessible disconnect device shall be incorporated in the building installation
wiring.
S For PLUGGABLE EQUIPMENT, the power outlet shall be installed near the equipment and shall be readily accessible.
2
14
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Safety Warnings
Installation
This section explains:
S Unpacking the Dell Metered Rack Power Distribution Unit (rPDU) equipment
S Equipment inspection
S Setup and installation
S Starting up and shutting down the rPDU
S Front panel diagrams
Unpacking the rPDU
CAUTION: Hazard of electric shock. Unpacking the cabinet in a low-temperature environment may cause condensation
to occur in and on the rPDU. Do not install the rPDU until the inside and outside are dry.
Use care when moving and opening the carton. Leave the components packaged until ready to install.
1Remove the top from the carton(see Figure 5).
3
Figure 5. Unpacking the rPDU
2Remove the rPDU, the accessory bag, and documentation from the carton:
Grasp the rPDU and the input connector plug and set them on a flat, stable surface.
Remove the Styrofoam shipping supports from the rPDU and the wrapper from the input connector plug.
Remove the documents and the accessory bag from the inside wall of the carton.
Installation
|
15
3Place the rPDU in a protected area that has adequate airflow and is free of humidity, flammable gas, and
corrosion.
4Discard or recycle the packaging in a responsible manner, or store it for future use.
Inspecting the Equipment
If any equipment has been damaged during shipment, keep the shipping cartons and packing materials for the
carrier or place of purchase and file a claim for shipping damage. If you discover damage after acceptance, file a
claim for concealed damage.
To file a claim for shipping damage or concealed damage: 1) File with the carrier within 15 days of receipt of the
equipment; 2) Send a copy of the damage claim within 15 days to your service representative.
Checking the Accessory Bag
The rPDU accessory bag includes the following:
S (2) deep mounting pegs and (2) 8-32 5/8” mounting screws (for 90° installation)
S Grounding kit with:
-(1) silver 10-32
-(1) black, M5
-(1) ground wire
-(2) star washers
S Safety, Environmental, and Regulatory Information (SERI) document
S Quick Start Installation Sheet
S (1) RJ-45 Cable (RJ-45-to-DB9-female, 2.0m length, serial cable)
0.5” pan-head screw
12 pan-head screw
If you ordered the optional strain relief brackets (shipped separately), check that the following associated
hardware is included with the option.
For the side-mounted strain relief bracket:
S (3) strain relief brackets
S (8) M36 flat-head cross screws
For the front-mounted strain relief bracket:
S (3) strain relief brackets
S (4) 6-321/4” flat-head cross screws
|
16
Installation
Preparing for Installation
Before installing the rPDUs in a rack enclosure, consider location and orientation. For most installations, the
selected location and orientation depends on the number of rPDUs that will be installed and the cable
management plan.
For example, suppose you plan to separate data and power cables on opposite sides of the rack enclosure. For this
configuration, install one or two rPDUs in the same tray. Route the data cables to the other rPDU tray (serving
as a cable channel) on the opposite side of the rack enclosure.
Another plan might be to balance the data and power cables on each side. For this configuration, install one
rPDU on each side of the rack enclosure. The remaining portion of each rPDU tray serves as a cable channel for
bundled and properly dressed data cables running beside the rPDU.
Other considerations include the orientation of the rPDU and the type of strain relief brackets mounted on the
rPDUs.
Installing Hardware for Options
Install the hardware that supports installation options before installing the rPDUs in the rack enclosure. This
includes the following:
S Strain relief brackets for cord management (optional kit)
S Deep mounting pegs for the 90° mounting option (supplied)
NOTE:
The factory-installed standard mounting pegs are secured to the chassis by two 8-32 3/7” mounting screws. The
user-installed deep mounting pegs are secured to the chassis by two 8-32 5/8” mounting screws.
Installing Strain Relief Brackets
To install the optional strain relief brackets:
1Place the rPDU on a flat, stable surface.
2Align the screw mounting holes on the rPDU with the screw mounting holes on the bracket (see Figure 6).
3Secure the bracket with the supplied screws.
4Are you installing deep mounting pegs for 90° installation?
If no, go to “Installing the rPDU in the Rack Enclosure” on page 19.
If yes, continue to the next section, “Installing Deep Mounting Pegs” on page 18.
Installation
|
17
Side-Mounted Strain Relief Bracket
Front-Mounted Strain Relief Bracket
Figure 6. Strain Relief Bracket
Installing Deep Mounting Pegs
To install the deep mounting pegs (supplied) on the side of the rPDU for 90° mounting installations:
1Remove the two deep mounting pegs and two mounting screws from the accessory bag.
2Locate the top and bottom peg mounting holes on the side of the rPDU (see Figure 7).
3Align the peg mounting holes on the rPDU with the mounting hole in the center of the deep mounting
pegs.
4Secure the top and bottom deep mounting peg with the provided screws (see Figure 7).
NOTE:
Dell recommends removing the standard mounting pegs on the rear of the rPDU if you install the deep mounting
pegs (provided in the accessory kit shipped with the rPDU). Retain the standard mounting pegs so the rPDU can be
reoriented later if needed.
|
18
Installation
Figure 7. Installing the Deep Mounting Pegs
Installing the rPDU in the Rack Enclosure
To install the rPDU in a rack enclosure:
1Move the rPDU into position at the rear of the rack enclosure.
2Select the proper keyholes in the rPDU tray for mounting the rPDU.
3Align the mounting pegs with the keyholes in wall of the rPDU tray (see Figure 8).
Figure 8. Aligning and Inserting the Standard or Deep Mounting Pegs (Top Mounting shown; Bottom Mounting not shown)
4Fully insert both mounting pegs into the keyholes.
5Push down to set the rPDU in place.
NOTE:
A second rPDU can be installed in the same tray. The procedure is the same. See Figure 9.
Installation
|
19
Figure 9. Mounting Two rPDUs in the PDU Tray
6Continue to “Attaching the Ground Wire” section on page 21.
20
|
Installation
Attaching the Ground Wire
To attach the ground wire to the rack:
NOTE:
Dell recommends that you ground the rPDU to the rack frame with the ground wire provided in the Grounding Wire
Kit.
1Connect one end of the ground wire to the ground bonding point location on the front panel of the rPDU
using the silver, 10-32
2Connect the other end of the ground wire to a hole in the rack frame using the black, M512 pan-head
screw and star washer (supplied). See Figure 10.
0.5” pan-head screw and star washer (supplied).
Frame Connection
M5
12 Pan-head Screw (Black)
Star Washer
Figure 10. Ground Bonding Point and Frame Connections
3Continue to “Connecting Protected Equipment” on page 22.
Ground Bonding Point Connection
10-32
0.5” Pan-head Screw (Silver)
Star Washer
Installation
|
21
Connecting the Protected Equipment
CAUTION: For PLUGGABLE EQUIPMENT, the power outlet shall be installed near the equipment and shall be readily
accessible.
CAUTION: The rPDU output receptacles for each phase are protected by two 20A circuit breakers on the front panel.
Confirm that the equipment connected to the rPDU does not exceed the rPDU's capacity.
NOTE: The DELLM0003 model does not have circuit breakers.
To install the plug-receptacles:
1Plug the equipment power cords into the rPDU outlet receptacles.
2If an optional strain relief bracket is installed, attach the power cords to the bracket by looping the cords
and securing them with tie wraps.
NOTE:
Secure the power cords in the bracket so you can unplug them without removing the tie wrap.
3Plug the rPDU power cord into a power outlet.
4Ensure that each circuit breaker is in the ON position.
NOTE:
If power to the rPDU is interrupted, check each circuit breaker and reset if necessary.
Starting the rPDU
To start the rPDU:
1Plug the rPDU power cord into the power outlet.
2Turn each circuit breaker to the ON position.
3If power to the rPDU is interrupted, check each circuit breaker and reset if necessary.
NOTE:
During startup, the Dell Startup screen displays for five seconds and then defaults to the Input Status screen.
Shutting Down the rPDU
NOTE: The protected equipment may be turned off at the equipment or, for models with circuit breakers, at the circuit
breakers on the rPDU.
To shut down the rPDU:
1Shut down the protected equipment according to the manufacturer's recommended shutdown sequence.
2Models with circuit breakers only. Turn each circuit breaker to the OFF position.
3To remove power from the rPDU completely, disconnect the rPDU input connector at the source.
22
|
Installation
Front Panels
This section shows the front panels of the rPDU models.
Two types of external signaling ports are provided on the rPDU front panel (see Figure 18):
S Communication ports
S Monitoring ports
4
Temperature/Humidity
Sensor Port
Serial Port
NMC Reset Button
Figure 18. Communication and Environmental Ports
Dry Contact Sensor Port
Ethernet Port
Communication Ports
The rPDU provides both a serial and an Ethernet (10/100 Base-T) communication port for external controls.
These communication ports are used to access external controls for upgrading, monitoring, or managing the
rPDU.
Firmware upgrades (flash upgrades) update the rPDU firmware and the internal Dell Network Management
Card (NMC). Upgrades can be performed either using a command line interface (CLI) upgrade utility or a
Web-based graphical user interface.
NOTE:
The RESET button on the front panel resets the internal NMC.
Flash upgrades are transparent and do not affect rPDU operation. However, the front panel buttons and LCD
operation are disabled during the upgrade. Unique model identification information prevents an incorrect
firmware load from being installed on an rPDU during a flash upgrade.
During the flash upgrade, the LCD provides a “Flash Update In Process” message and provides a progress bar. If
the upgrade is interrupted, recovery processes allow the upgrade to restart. If the upgrade fails, the LCD displays
a “Flash Error” message and the backlight changes to amber text with a dark red background.
The rPDUs can be monitored and settings modified using a graphical Web interface. The settings correspond to
the Settings menu (see Settings menu on page 43). This requires a PC connected through the Ethernet port.
External Signaling Ports
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27
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