Vertiv NetSure 710 Series User manual

NetSure™
710 SERIES +24V DC Power System
User Manual (UM581127000), Revision L
Specification Number: 581127000
Model Number: 710NPBA

Vertiv |NetSure 710 Series User Manual (UM581127000)|Rev. L
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The information contained in this document is subject to change without
notice and may not be suitable for all applications. While every precaution
has been taken to ensure the accuracy and completeness of this
document, Vertiv Group Corporation assumes no responsibility and
disclaims all liability for damages resulting from use of this information or
for any errors or omissions. Refer to other local practices or building codes
as applicable for the correct methods, tools, and materials to be used in
performing procedures not specifically described in this document.
This document may contain confidential and/or proprietary information of
Vertiv Group Corporation, and its receipt or possession does not convey
any right to reproduce, disclose its contents, or to manufacture or sell
anything that it may describe. Reproduction, disclosure, or use without
specific authorization from Vertiv Group Corporation is strictly prohibited.
Vertiv and the Vertiv logo are trademarks or registered trademarks of
Vertiv Group Corporation. NetPerform™, NetReach™, NetSure™ and
NetXtend™ are trademarks of Vertiv Energy Systems, Inc. All other
trademarks are the property of their respective owners.
© 2017 Vertiv Energy Systems, Inc. All rights reserved.

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TABLE OF CONTENTS
Admonishments Used in this Document............................................................5
Important Safety Instructions ..............................................................................6
General Safety ..........................................................................................................................................................6
Voltages.......................................................................................................................................................................... 6
AC Input Voltages........................................................................................................................................................6
DC Output and Battery Voltages ..................................................................................................................6
Battery ...............................................................................................................................................................................7
Personal Protective Equipment (PPE)............................................................................................. 8
Hazardous Voltage.............................................................................................................................................. 8
Handling Equipment Containing Static Sensitive Components............................. 8
Maintenance and Replacement Procedures.............................................................................. 8
Static Warning...........................................................................................................9
Customer Documentation Package....................................................................11
System Description................................................................................................ 12
Operating Procedures........................................................................................... 13
Controller, Rectifiers, and Optional Converters..................................................................... 13
ESTOP Function................................................................................................................................................... 13
Controller Battery Charge Current Limit Feature ...............................................................13
Local Controls and Indicators.................................................................................................................14
Maintenance ........................................................................................................... 20
System Maintenance Procedures......................................................................................................20
Adding a Rectifier or DC-DC Converter Module to an Existing
Module Mounting Assembly....................................................................................................................20
Installing a Field Expansion Module Mounting Assembly ......................................... 22
Reconfiguring a Dual Voltage Distribution Panel (List DA, DB, DC,
DD).................................................................................................................................................................................... 25
Reconfiguring a Dual Voltage Distribution Panel (List DE, DF, DG,
DH, DJ, DK)...............................................................................................................................................................34
Changing the Controller’s LVD Control Level for a Contactor.............................43
Troubleshooting and Repair............................................................................... 43
Contact Information.........................................................................................................................................43
Controller, Rectifiers, and Optional Converters....................................................................43
Controller Configuration..............................................................................................................................43
System Troubleshooting Information ............................................................................................43
Replacement Information...........................................................................................................................45
Replacement Procedures...........................................................................................................................45
Replacing a Rectifier or Converter Module..................................................................................... 45
Replacing the Controller.................................................................................................................................... 45
Replacing a Distribution Device................................................................................................................. 45
Replacing a Distribution Panel (List AA, AB, AC, AD, AE, AF, AG, AH, AJ,
AK, DA, DB, DC, DD, BA, BB, BC, BD, BE, BF, BG, BH, AM, and AP).............................55

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Replacing a Distribution Panel (List AL, AN, DE, DF, DG, DH, DJ, and
DK)...........................................................................................................................................................................................58
Replacing a Distribution Panel List AA, AB, AC, AD, AE, AF, AG, AH, AJ,
AK, DA, DB, DC, DD, BA, BB, BC, BD, BE, BF, BG, or BH with a List AL,
AN, DE, DF, DG, DH, DJ, or DK ...................................................................................................................... 61
Circuit Card Replacement Procedures................................................................................................ 66
Replacing a Battery or Load Disconnect Contactor................................................................79

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ADMONISHMENTS USED IN THIS DOCUMENT
DANGER
! Warns of a hazard the reader will be exposed to that will likely result
in death or serious injury if not avoided. (ANSI, OSHA)
WARNING
! Warns of a potential hazard the reader may be exposed to that could
result in
death or serious injury if not
avoided. This admonition is not used for situations that pose a
risk only to equipment, software, data, or service. (ANSI)
CAUTION
! Warns of a potential hazard the reader may be exposed to that could
result in minor or moderate injury if not avoided. (ANSI, OSHA) This admonition is not
used for situations that pose a risk only to equipment, data, or service, even if such use
appears to be permitted in some of the applicable standards. (OSHA)
ALERT
!Alerts the reader to an action that must be avoided in order to protect
equipment, software, data, or service. (ISO)
ALERT
! Alerts the reader to an action that must be performed in order to prevent
equipment damage, software corruption, data loss, or service interruption. (ISO)
FIRE SAFETY
! Informs the reader of fire safety information, reminders, precautions,
or policies, or of the locations of fire
-fighting and fire-safety equipment. (ISO)
SAFETY
! Informs the reader of general safety information, reminders, precautions, or
policies not related to a particular source of hazard or to fire safety. (ISO, ANSI, OSHA)

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IMPORTANT SAFETY INSTRUCTIONS
General Safety
DANGER! YOU MUST FOLLOW APPROVED SAFETY PROCEDURES.
Performing the following procedures may expose you to hazards. These procedures should be
performed by qualified technicians familiar with the hazards associated with this type of equipment.
These hazards may include shock, energy, and/or burns. To avoid these hazards:
a) The tasks should be performed in the order indicated.
b) Remove watches, rings, and other metal objects.
c) Prior to contacting any uninsulated surface or termination, use a voltmeter to verify that no voltage
or the expected voltage is present. Check for voltage with both AC and DC voltmeters prior to
making contact.
d) Wear eye protection.
e) Use certified and well maintained insulated tools. Use double insulated tools appropriately rated for
the work to be performed.
Voltages
AC Input Voltages
DANGER! This system operates from AC input voltage capable of producing fatal electrical shock. AC
input power must be completely disconnected from the branch circuits wiring used to provide power to
the system before any AC electrical connections are made. Follow local lockout/tagout procedures to
ensure upstream branch circuit breakers remain de-energized during installation. DO NOT apply AC
input power to the system until all electrical connections have been completed and checked.
DC Output and Battery Voltages
DANGER! This system produces DC power and may have a battery source connected to it. Although
the DC voltage is not hazardously high, the rectifiers and/or battery can deliver large amounts of current.
Exercise extreme caution not to inadvertently contact or have any tool inadvertently contact an output
terminal or battery terminal or exposed wire connected to an output terminal or battery terminal.
NEVER allow a metal object, such as a tool, to contact more than one termination or battery terminal at a
time, or to simultaneously contact a termination or battery terminal and a grounded object. Even a
momentary short circuit can cause sparking, explosion, and injury.
DANGER! Follow local lockout/tagout procedures to ensure DC branch circuit protection devices
remain de-energized during installation at loads, as required.

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Battery
Refer to the battery manufacturer documentation for specific battery safety instructions. The following are
general guidelines.
WARNING! Correct polarity must be observed when connecting battery leads.
WARNING! Special safety precautions are required for procedures involving handling, installing, and
servicing batteries. Observe all battery safety precautions in this manual and in the battery instruction
manual. These precautions should be followed implicitly at all times.
WARNING! A battery can present a risk of electrical shock and high short circuit current. Servicing of
batteries should be performed or supervised only by properly trained and qualified personnel
knowledgeable about batteries and the required precautions.
The following precautions should be observed when working on batteries:
•Remove watches, rings, and other metal objects.
•Eye protection should be worn to prevent injury from accidental electrical arcs.
•Use certified and well maintained insulated tools. Use double insulated tools appropriately rated for
the work to be performed. Ensure that wrenches with more than one working end have only one
end exposed.
•Do not lay tools or metal parts on top of batteries.
•Disconnect charging source prior to connecting or disconnecting battery terminals.
•Risk of explosion if battery is replaced with an incorrect type or if polarity is reversed.
Recommended to replace batteries with the same manufacturer and type, or equivalent.
•Dispose of used batteries according to the instructions provided with the batteries. Do not dispose
of batteries in a fire. They may explode.
•ALWAYS FOLLOW THE BATTERY MANUFACTURER’S RECOMMENDATIONS AND SAFETY
INSTRUCTIONS.
DANGER! This equipment may be used in conjunction with lead-acid batteries. Working near lead-acid
batteries is dangerous!
In addition to the hazard of electric shock, gas produced by batteries can be explosive and sulfuric acid
can cause severe burns.
•Do not open or mutilate batteries. Released electrolyte is harmful to the skin and eyes, and is toxic.
•Batteries contain sulfuric acid.
•Batteries generate explosive gases during normal operation. Systems containing batteries should
never be installed in an airtight room or space. Only install in a ventilated environment.
•Batteries are an energy source that can produce high amounts of electrical current.

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FOR THESE REASONS, IT IS OF CRITICAL IMPORTANCE THAT YOU READ THESE INSTRUCTIONS
AND FOLLOW THEM EXACTLY.
WHEN WORKING WITH LEAD-ACID BATTERIES:
•Follow the recommended PPE requirements per the SDS for the battery to be used.
•If battery acid enters your eye, immediately flush your eye with running cold water for at least 15
minutes. Get medical attention immediately.
•If battery acid contacts skin or clothing, wash immediately with soap and water.
ALERT! Performing maintenance and/or troubleshooting procedures may interrupt power to the loads,
if battery reserve is not sufficient.
Personal Protective Equipment (PPE)
DANGER! ARC FLASH AND SHOCK HAZARD.
Appropriate PPE and tools required when working on this equipment. An appropriate flash protection
boundary analysis should be done determine the “hazard/risk” category, and to select proper PPE.
This product is intended only for installation in a Restricted Access Location.
Only authorized and properly trained personnel should be allowed to install, inspect, operate, or maintain
the equipment.
Do not work on LIVE parts. If required to work or operate live parts, obtain appropriate Energized Work
Permits as required by the local authority, per NFPA 70E “Standard for Electrical Safety in the
Workplace”.
Hazardous Voltage
DANGER! HAZARD OF ELECTRICAL SHOCK.
More than one disconnect may be required to de-energize the system before servicing.
Handling Equipment Containing Static Sensitive Components
ALERT! Installation or removal of equipment containing static sensitive components requires careful
handling. Before handling any equipment containing static sensitive components, read and follow the
instructions contained on the Static Warning Page.
Maintenance and Replacement Procedures
CAUTION! When performing any step in procedures that requires removal or installation of hardware,
use caution to ensure no hardware is dropped and left inside the unit; otherwise service interruption or
equipment damage may occur.
NOTE! When performing any step in procedures that requires removal of existing hardware, retain all
hardware for use in subsequent steps, unless otherwise directed.

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STATIC WARNING
This equipment contains static sensitive components. The warnings listed below must be observed to
prevent damage to these components. Disregarding any of these warnings may result in personal injury
or damage to the equipment.
1. Strictly adhere to the procedures provided in this document.
2. Before touching any equipment containing static sensitive components, discharge all static
electricity from yourself by wearing a wrist strap grounded through a one megohm resistor. Some
wrist straps have a built-in one megohm resistor; no external resistor is necessary. Read and follow
wrist strap manufacturer’s instructions outlining use of a specific wrist strap.
3. Do not touch traces or components on equipment containing static sensitive components. Handle
equipment containing static sensitive components only by the edges that do not have connector
pads.
4. After removing equipment containing static sensitive components, place the equipment only on
conductive or anti-static material such as conductive foam, conductive plastic, or aluminum foil. Do
not use ordinary Styrofoam™or ordinary plastic.
5. Store and ship equipment containing static sensitive components only in static shielding containers.
6. If necessary to repair equipment containing static sensitive components, wear an appropriately
grounded wrist strap, work on a conductive surface, use a grounded soldering iron, and use
grounded test equipment.

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CUSTOMER DOCUMENTATION PACKAGE
This document (UM581127000) provides User Instructions for NetSure™ +24 VDC Power System Model
710NPBA, Spec. No. 581127000.
The complete Customer Documentation Package consists of…
NetSure™+24 VDC Power System Installation Manual
•Power System Installation Instructions: IM581127000
NetSure™ACU+ Controller User Manual
•ACU+ Controller User Instructions: UM1M820BNA
NetSure™NCU Controller User Manual
•NCU Controller User Instructions: UM1M830BNA
USB Drive with All Customer Documentation
•Power System Quick Start Guide: QS581127000
•Power System Installation Instructions: IM581127000
•Power System User Instructions: UM581127000
•ACU+ Controller User Instructions: UM1M820BNA
•NCU Controller User Instructions: UM1M830BNA
•Power System “System Application Guide”: SAG581127000
•Module Mounting Shelf Power Data Sheet: PD588705200 (PD588705201, PD588705202, PD588705203,
PD588705204)
•Rectifier Instructions: UM1R243000
•Converter Instructions: UM1C24481500
•NCU Controller 2nd Ethernet Port Add-On Kit Instructions: IM559252
•NCU Controller 2nd Ethernet Port Retrofit Kit Instructions: IM559251
•Engineering Drawings
•Also provided on the USB drive is a controller configuration drawing and the controller configuration
files loaded into the controller as shipped.

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SYSTEM DESCRIPTION
+24 VDC @ up to 2000 Amperes Power System
The NetSure™ 710NPBA DC Power System is an integrated power system containing rectifiers, optional
converters, intelligent control, metering, monitoring, and distribution.
This power system is designed to power a load while charging a negative grounded battery. This power system
is capable of operating in a batteryless installation or off battery for maintenance purposes. The power system
is designed for operation with the negative output grounded.
This system consists of the following components.
Distribution Cabinet
The system always includes a minimum of one distribution cabinet, which provides DC distribution through
fuses and/or circuit breakers. The distribution cabinet is factory mounted in the relay rack or shipping brackets
specified when ordered.
Four different sizes of distribution cabinets are available to accept from one (1) to four (4) distribution panels.
A variety of distribution panels are available that provide load distribution, battery distribution, and dual voltage
load distribution for use with -48V converters. These distribution panels are configured to accept either bullet
nose type circuit breakers and TPS/TLS fuseholders, TPH fuses, TPL-B fuses, or GJ/218 circuit breakers. A
bulk output panel is also available.
The distribution cabinet may be equipped with low voltage load disconnect (LVLD), low voltage battery
disconnect (LVBD), and manual battery disconnect.
Controller
The controller controls the operation of the rectifier and converter modules. The controller also provides power
system control, metering, monitoring, and alarm functions.
NCU (NetSure Control Unit): The controller provides power system control (including optional low voltage
battery disconnect (LVBD) and low voltage load disconnect (LVLD) control), rectifier control (including a
charge control function), converter control, metering functions, monitoring functions, and local/remote alarm
functions. The controller also supports rectifier temperature compensation if the system is equipped with a
temperature probe(s). Temperature probe(s) may also be designated to monitor ambient temperature and/or
battery temperature.The controller also provides data acquisition, system alarm management, and advanced
battery and energy management. The controller contains a color LCD display and keypad for local access. The
controller provides an Ethernet port and comes with comprehensive webpages for remote access. The
controller has SNMP v3 capability for remote system management. The controller supports software upgrade
via its USB port. Refer to the NCU Controller Instructions (UM1M830BNA) for more information.
ACU+ (Advanced Control Unit Plus): The controller provides power system control (including optional low
voltage battery disconnect (LVBD) and low voltage load disconnect (LVLD) control), rectifier control (including
a charge control function), converter control, metering functions, monitoring functions, and local/remote alarm
functions. The controller also supports rectifier temperature compensation if the system is equipped with a
temperature probe(s). Temperature probe(s) may also be designated to monitor ambient temperature and/or
battery temperature. The controller also provides data acquisition, system alarm management, and advanced
battery and energy management. The controller contains an LCD display and keypad for local access. The
controller provides an Ethernet port and comes with comprehensive webpages for remote access. The
controller has SNMP capability for remote system management. The controller supports software upgrade via
its USB port. Refer to the ACU+ Controller Instructions (UM1M820BNA) for more information.

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Module Mounting Assembly
The system contains one module mounting assembly which houses rectifier modules and optional DC-DC
converter modules. A module mounting assembly consists of one (1) to four (4) 8-position module mounting
shelves. Refer to Power Data Sheet PD588705200 (PD588705201, PD588705202, PD588705203,
PD588705204) for more information.
Rectifier Modules
The system contains rectifier modules, which provide load power, battery float current, and battery recharge
current during normal operating conditions. Refer to the Rectifier User Instructions (UM1R243000) for more
information.
Converter Modules
Where –48VDC load power is also required, DC-DC converter modules are available. Refer to the Converter
User Instructions (UM1C24481500) for more information.
OPERATING PROCEDURES
Controller, Rectifiers, and Optional Converters
For operation instructions on these units, refer to the following documents.
•ACU+ Controller Instructions (UM1M820BNA)
•NCU Controller Instructions (UM1M830BNA)
•Rectifier User Instructions (UM1R243000)
•Converter User Instructions (UM1C24481500)
ESTOP Function
If an ESTOP switch is wired to the IB2 Controller Interface Board, customer-furnished system ground applied to
terminal DI8- activates the ESTOP function. The ESTOP function shuts down and locks out the rectifiers,
opens the LVD’s, and shuts down the converters. When the ESTOP signal is removed, LVD’s close (if battery
present) and converters restart. To restart the rectifiers; turn AC power to the rectifiers OFF, wait 30 seconds
or more (until the LEDs on the module extinguish), then turn AC power to the rectifiers ON.
Controller Battery Charge Current Limit Feature
Functionality: After a commercial AC failure or when some battery cells are permanently damaged, the current
to the batteries can be quite extensive. To avoid overheating or further damages to the battery, the controller
can be programmed to limit the battery current to a preset level by limiting the charging voltage of the
rectifiers. Should the battery current still exceed a higher preset value, an alarm is issued.
The controller limits the current going to the batteries based on the “Battery Current Limit” set point which is a
percentage of the battery capacity in C10. For example, 0.1C10 would mean 10% of the battery capacity.
Refer to the ACU+ Instructions (UM1M820BNA) or NCU Instructions (UM1M830BNA) to program this feature.
Battery charge current is limited to the value set in the controller, as long as battery voltage is above 23.5V DC.

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Local Controls and Indicators
Refer to the Controller, Rectifier, and Converter Instructions for descriptions of the local controls and indicators
located on these units.
Refer to this section for descriptions of the local controls and indicators located on the circuit cards installed in
the distribution cabinet.
Circuit Card Locations
Refer to Figure 1.

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Figure 1: Circuit Card Locations
IB2
(Interface Board)
(located on inside side panel)
Optional EIB
(Extended Interface Board)
(located on inside side panel)
Optional SM-DU+ and
Shunt Interface Board
4-Row Cabinet Shown,
Others Similar
(Front Door Removed in
Illustration for Clarity)
Controller
Mounting Position
System Interface
Circuit Card
OR
Optional LVD
Driver Circuit Card
Optional LVD Driver
Lite Circuit Card
Optional Manual Battery
Disconnect Circuit Card
Optional LVD
Inhibit Switch
(factory installed
if option specified)

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System Interface Circuit Card
The system interface circuit card contains test points to externally monitor bay voltage and bay load. Refer to
Figure 2.
Figure 2: System Interface Circuit Card
TP3 (+) and TP4 (-)
System Load
Shunt Monitoring
TP1 (+) and TP2 (-)
System Voltage
Monitoring
J7
TB2
J1
1
1
1
1
J2
J3
J4
J8
TB1
TP1 TP2 TP3 TP4
J5
J10
System Load Shunt Scale
List 21, 1-Row Cabinet
800A / 25mV
32A per mV
List 22, 2-Row Cabinet
2000A / 25mV
80A per mV
List 23, 3-Row Cabinet
2500A / 25mV
100A per mV
List 24, 4-Row Cabinet
2500A / 25mV
100A per mV

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Optional LVD Driver Circuit Card
The optional LVD driver circuit card contains an LVD inhibit switch and indicator. Refer to Figure 3. LVD
driver circuit cards are required for 2-, 3-, or 4-row distribution cabinets that contain three or more LVD
contactors (LVBD and/or LVLD); or if the distribution cabinet is equipped with an LVBD contactor rated 1200A
or higher.
CAUTION! If the switch is returned to the ON (normal) position when low voltage disconnect alarms are
active, a low voltage disconnection will occur.
WARNING! While the LVD inhibit switch is in the OFF (inhibit) position, a low voltage disconnection will
not occur if battery or load voltage decreases below the low voltage disconnect setpoint. For maximum
battery protection, this switch should NOT be left in the OFF (inhibit) position.
Figure 3: Optional LVD Driver Circuit Card
LVD Inhibit Switch
Momentary UP/ Middle / Down
Momentary UPPosition: Closes all LVD Contactors (inhibit mode).
Middle Position: OFF (Controller DOES NOT control LVD’s) (inhibit mode).
DOWN Position: ON (Controller controls LVD’s).
LVD Inhibit
Active Indicator
Illuminates when the
low voltage disconnect
circuit hasbeen disabled
through the use of the
LVD Inhibit switch.
J6 J5 J4
J3 J2 J1
J9
J7
S1
Note: The UPposition will not close the LVBD contactor
if the battery is manually disconnected using the
Manual Battery Disconnect Switch.

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Optional LVD Driver Lite Circuit Card
The optional LVD driver lite circuit card contains an LVD inhibit switch and indicator. Refer to Figure 4. LVD
driver lite circuit cards are required for distribution cabinets that contain two LVLD contactors or one LVLD
contactor and one LVBD contactor. LVBD contactor must be rated at 600A or lower.
CAUTION! If the switch is returned to the ON (normal) position when low voltage disconnect alarms are
active, a low voltage disconnection will occur.
WARNING! While the LVD inhibit switch is in the OFF (inhibit) position, a low voltage disconnection will
not occur if battery or load voltage decreases below the low voltage disconnect setpoint. For maximum
battery protection, this switch should NOT be left in the OFF (inhibit) position.
Figure 4: Optional LVD Driver Lite Circuit Card
LVD Inhibit Switch
LVD Inhibit
Active Indicator
Momentary UP/ Middle / Down
Momentary UPPosition: Closes all LVD Contactors (inhibit mode).
Middle Position: OFF (Controller DOES NOT control LVD’s) (inhibit mode).
DOWN Position: ON (Controller controls LVD’s).
Illuminates when the
low voltage disconnect
circuit hasbeen disabled
through the use of the
LVD Inhibit switch.
J1J3
J2
S1
Note: The UPposition will not close the LVBD contactor
if the battery is manually disconnected using the
Manual Battery Disconnect Switch.

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Optional Manual Battery Disconnect Circuit Card
The optional manual battery disconnect circuit card contains a manual battery disconnect switch and indicator.
Refer to Figure 5.
Figure 5: Optional Manual Battery Disconnect Circuit Card
Momentary UP/ Middle / Momentary Down
Manual Battery Disconnect
Active Indicator
Manual Battery
Disconnect Switch
Illuminates if the Battery Disconnect Contactor has
been manually disconnected (placed in open position).
J1
J2
S1
Momentary UP Position: Closes (latches in close position) the Battery Disconnect Contactor.
Middle Position: Normal Operation.
Momentary DOWN Position: Opens (latches in open position) the Battery Disconnect Contactor.
Momentarily place switch in the UP position to close the contactor.

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MAINTENANCE
System Maintenance Procedures
It is recommended to perform the maintenance procedures listed in Table 1every 6-months to ensure
continual system operation.
Table 1: Maintenance Procedures to be Performed at 6-Month Intervals
PROCEDURE REFERENCED IN
Check ventilation
openings for
obstructions such as
dust, papers,
manuals, etc.
--
Inspect and tighten
all installer's
connections.
IM581127000,
“Making Electrical
Connections” section.
Adding a Rectifier or DC-DC Converter Module
to an Existing Module Mounting Assembly
To increase system current capacity, a rectifier module can easily be added to an existing module mounting
assembly that contains an empty rectifier module mounting position. Likewise, in systems that accept DC-DC
converter modules, to increase subsystem capacity a DC-DC converter module can be added to a module
mounting assembly that contains an empty converter module mounting position.
The module location diagram on the front of each module mounting assembly shows which type of module can
be operated in that shelf. (See Figure 6.) Rectifier modules will operate in any mounting position in any shelf.
If a shelf accepts DC-DC converter modules, they must be installed in any or all of the four middle mounting
positions (B, C, F, G) of each 8-position module mounting shelf.
It is recommended that the current limit point be checked whenever a rectifier or converter is added to or
removed from the power system. Refer to “Checking the Controller’s Current Limit Point after Adding or
Removing a Rectifier Module” on page 44.
The rectifier or converter module being added is assigned by the controller the lowest available identification
number. If desired, you can change the identification number.Refer to the ACU+ Instructions (UM1M820BNA)
or NCU Instructions (UM1M830BNA) for a procedure.
Procedure
1. Unpack the module.
2. Note the model number located on the handle of the module. Model numbers starting with the letter “R”
(R24-2500 or R24-3000) are rectifier modules. Model numbers starting with the letter “C” (C24/48-
1500) are DC-DC converter modules.
3. Check the module location diagram on the front of the module mounting assembly to determine which
type of module (rectifier or DC-DC converter) can be installed in each mounting position. See Figure 6.