Mitsubishi MELSEC iQ-R, RD75-U-OU-E User Manual

NetSure™ 710NPBA
+24 VDC Power System

User Manual

Specification Number: 581127000
Model Number: 710

NPBA

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

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
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.

The products covered by this instruction manual are manufactured and/or
sold by Vertiv. This document is the property of Vertiv and contains
confidential and proprietary information owned by Vertiv. Any copying, use or
disclosure of it without the written permission of Vertiv is strictly prohibited.

Names of companies and products are trademarks or registered trademarks of
the respective companies. Any questions regarding usage of trademark
names should be directed to the original manufacturer.

Technical Support Site

If you encounter any installation or operational issues with your product, check the pertinent section of this
manual to see if the issue can be resolved by following outlined procedures.

Visit https://www.vertiv.com/en-us/support/

for additional assistance.

Vertiv™ NetSure™ 710

NPBA +24 VDC Power System User Manual

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

iii

TABLE OF CONTENTS

Admonishments Used in this Document ............................................................................................................................. iv

Important Safety Instructions .................................................................................................................................................. v

Static Warning ........................................................................................................................................................................... viii

1 Customer Documentation Package ..................................................................................................................................1

2 System Description ............................................................................................................................................................... 2

3 Operating Procedures .......................................................................................................................................................... 3

3.1 Controller, Rectifiers, and Optional Converters................................................................................................................................................................................. 3

3.2 ESTOP Function............................................................................................................................................................................................................................................................. 3

3.3 Controller Battery Charge Current Limit Feature ...........................................................................................................................................................................4

3.4 Local Controls and Indicators ...........................................................................................................................................................................................................................4

4 Maintenance ........................................................................................................................................................................... 10

4.1 System Maintenance Procedures ............................................................................................................................................................................................................... 10

4.2 Adding a Rectifier or DC-DC Converter Module to an Existing Module Mounting Assembly .......................................................... 10

4.3 Installing a Field Expansion Module Mounting Assembly..................................................................................................................................................... 12

4.4 Reconfiguring a Dual Voltage Distribution Panel (List DA, DB, DC, DD) ................................................................................................................15

4.5 Reconfiguring a Dual Voltage Distribution Panel (List DE, DF, DG, DH, DJ, DK) .......................................................................................... 24

4.6 Changing the Controller’s LVD Control Level for a Contactor ........................................................................................................................................ 33

5 Troubleshooting and Repair ........................................................................................................................................... 33

5.1 Contact Information ................................................................................................................................................................................................................................................. 33

5.2 Controller, Rectifiers, and Optional Converters.............................................................................................................................................................................. 33

5.3 Controller Configuration ...................................................................................................................................................................................................................................... 33

5.4 System Troubleshooting Information ..................................................................................................................................................................................................... 33

5.5 Replacement Information .................................................................................................................................................................................................................................. 34

5.6 Replacement Procedures ................................................................................................................................................................................................................................... 35

5.6.1 Replacing a Rectifier or Converter Module ................................................................................................................................................................. 35

5.6.2 Replacing the Controller ............................................................................................................................................................................................................... 35

5.6.3 Replacing a Distribution Device............................................................................................................................................................................................. 35

5.6.4 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) ................................................................................................................................................................................ 45

5.6.5 Replacing a Distribution Panel (List AL, AN, DE, DF, DG, DH, DJ, and DK) ................................................................................. 48

5.6.6 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 .........................................................................................51

5.6.7 Circuit Card Replacement Procedures ........................................................................................................................................................................... 56

5.6.8 Replacing a Battery or Load Disconnect Contactor .......................................................................................................................................... 69

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iv

DANGER

in death or serious injury if not avoided. (ANSI, OSHA)

WARNING

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

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

equipment, software, data, or service. (ISO)

ALERT

equipment damage, software corruption, data lo

FIRE SAFETY

or policies, or of the locations of fire

SAFETY

policies not related to a particular source of hazard or to fire safety. (ISO, ANSI, OSHA)

Admonishments Used in this Document

! Warns of a hazard the reader

! Warns of a potential hazard the reader

! Warns of a potential hazard the reader

! Alerts the reader to an action that

will

be exposed to that will

may

be exposed to that

may

be exposed to that

must be avoided

likely

result

could

could

in order to protect

! Alerts the reader to an action that

! Informs the reader of fire safety information, reminders, precautions,

! Informs the reader of general safety information, reminders, precautions, or

-fighting and fire-safety equipment. (ISO)

must be performed

ss, or service interruption. (ISO)

in order to prevent

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

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Important Safety Instructions

Safety Admonishments Definitions

Definitions of the safety admonishments used in this document are listed under “Admonishments Used in this Document” on page iv.

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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vi

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:

• Follow the recommended PPE requirements per the SDS for the battery to be used.

• Batteries are an energy source that can produce high amounts of electrical current.

• 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.

• Verify that no current will flow when the battery is connected or disconnected by opening battery disconnects (if

available) or adjusting the system to match battery voltage.

• 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.

• Batteries may 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 may contain sulfuric acid. 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.

• Do not open or mutilate batteries.

• ALWAYS FOLLOW THE BATTERY MANUFACTURER’S RECOMMENDATIONS AND SAFETY INSTRUCTIONS.

ALERT! Performing maintenance and/or troubleshooting procedures may interrupt power to the loads, if battery reserve is

not sufficient.

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vii

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 to determine the “hazard/risk” category, and to select proper PPE.

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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viii

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 static dissipative

surfaces such as conductive foam or ESD bag. 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.

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

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1 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.

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

2

2 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, TPL­B 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.

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.

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

3

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.

3 Operating Procedures

3.1 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)

3.2 ESTOP Function

If an ESTOP switch is wired to the IB2-1 Controller Interface Board, customer-furnished system ground applied to terminal DI8­activates the ESTOP function. The ESTOP function shuts down and locks out the rectifiers, shuts down and locks out the optional
+24 VDC to -48 VDC converters, and opens the optional low voltage disconnect (LVD) contactors (battery and load type). If the
system has battery connected and does not contain a battery LVD or the controller power option is set to Battery Pwr (jumper J8 on
the system interface board is set to Battery Pwr), the controller will remain operational. If the system does not contain battery or load
LVD(s) and has battery connected, the loads will be sustained by the battery voltage.

For Systems NOT Containing a Battery LVD: When the ESTOP signal is removed, LVD contactors (battery and load type) will close
after the “LVD Reconnect Delay” has elapse (customer configurable via the controller) if battery voltage is present on the bus.
Rectifiers and +24 VDC to -48 VDC converters will remain off. The rectifiers will restart when the input power is removed and
restored after 30 seconds or more (until the LEDs on the modules extinguish). To restart the +24 VDC to -48 VDC converters:
remove the converter, wait 30 seconds or more (until the LEDs on the converter extinguish), then re-insert the converter.

For Systems Containing a Battery LVD: When the ESTOP signal is removed, LVD contactors (battery and load type) will remain open.
Rectifiers and +24 VDC to -48 VDC converters will remain off. The rectifiers will restart when the input power is removed and
restored after 30 seconds or more (until the LEDs on the modules extinguish). When the rectifiers restart, LVD contactors (battery
and load type) will close after the “LVD Reconnect Delay” has elapse (customer configurable via the controller) and the +24 VDC to ­48 VDC converters will restart.

NOTE!

If a customer-furnished method to disconnect the input power to the system is not provided, the rectifiers will stay

locked OFF until the input power is recycled. If the ESTOP signal is removed without recycling the input power, the rectifiers

will remain off and have a local alarm visible on the module. The ESTOP alarm from the controller will extinguish. The

controller will not issue an alarm for this condition.

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3.3 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.

3.4 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 3.1.

5

Figure 3.1 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)

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

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Monitoring

System Interface Circuit Card

The system interface circuit card contains test points to externally monitor bay voltage and bay load. Refer to Figure 3.2.

Figure 3.2 System Interface Circuit Card

J7

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

J8

TB2

J10

J1

J2

J3

J4

1

1

1

1

TB1

TP1 TP2 TP3

TP1 (+) and TP2 (-)

System Voltage

J5

TP4

TP3 (+) and TP4 (-)
System Load
Shunt Monitoring

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LVD Inhibit Switch

Momentary UP

/ Middle / Down
Momentary UP Position: 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 has been disabled

through the use of the

LVD Inhibit switch.

J6 J5 J4

J3 J2 J1

J9

J7

S1

Note: The U P position will not close the LVBD contactor
if the battery is manually disconnected using the
Manual Battery Disconnect Switch.

Optional LVD Driver Circuit Card

The optional LVD driver circuit card contains an LVD inhibit switch and indicator. Refer to Figure 3.3. 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.

ALERT! Do not hold the LVD inhibit switch in the up position for more than 3 seconds to avoid damaging the contactor.

Figure 3.3 Optional LVD Driver Circuit Card

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LVD Inhibit Switch

LVD Inhibit

Active Indicator

Momentary UP / Middle / Down
Momentary UP Position: 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 has been disabled

through the use of the

LVD Inhibit switch.

J1J3

J2

S1

Note: The UP position will not close the LVBD contactor
if the battery is manually disconnected using the
Manual Battery Disconnect Switch.

Optional LVD Driver Lite Circuit Card

The optional LVD driver lite circuit card contains an LVD inhibit switch and indicator. Refer to Figure 3.4. 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.

ALERT! Do not hold the LVD inhibit switch in the up position for more than 3 seconds to avoid damaging the contactor.

Figure 3.4 Optional LVD Driver Lite Circuit Card

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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.

Optional Manual Battery Disconnect Circuit Card

The optional manual battery disconnect circuit card contains a manual battery disconnect switch and indicator. Refer to Figure 3.5.

NOTE!

If this option is to be used as a Maintenance Battery Disconnect only, at least one rectifier requires to be active and

providing voltage to the system for proper operation.

ALERT! Do not hold the MBD switch (S1) in the up position for more than 3 seconds to avoid damaging the contactor.

ALERT! When using switch, after either pushing up or down let switch return to the center position for 3 seconds before

pushing switch in the opposite direction to avoid damaging the contactor.

Figure 3.5 Optional Manual Battery Disconnect Circuit Card

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4 Maintenance

4.1 System Maintenance Procedures

It is recommended to perform the maintenance procedures listed in Table 4.1 every 6-months to ensure continual system operation.

Table 4.1 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.

--

4.2 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 4.1.) 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 34.

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 4.1.

4. If present, remove the blank cover panel from the mounting position into which a rectifier or DC-DC converter module is to be

installed.

5. Install the rectifier or converter module into the shelf. Refer to the rectifier or converter User Instructions for a procedure.

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

11

Rectifier Modules Only

DC-DC Converter Modules

Figure 4.1 Module Location Diagrams (located on the front of each module mounting assembly)

MODULE

LOCATION

DIAGRAM

RECTIFIERS

(PCUs)

A B C D

E F G H

THIS SHELF

ACCEPTS

RECTIFIERS

(PCUs)

ONLY

This Shelf Accepts

MODULE

LOC

A

TION

DIAGRAM

RECTIFIERS

(PCUs)

A B C D

E F G H

CONVE

RTERS

THIS SHELF

ACCEPTS

RECTIFIERS

(PCUs) IN

AL

SLOTS

AND

L

8 SLOTS

CONVERTER S

IN 4 MIDDLE

This Shelf Accepts

Rectifier Modules and

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

12

4.3 Installing a Field Expansion Module Mounting Assembly

A field expansion module mounting assembly can be added to a system that has 24 or fewer module mounting positions.

Procedure

DANGER! Adhere to the “Important Safety Instructions” presented at the front of this document.

NOTE!

1. Slide the expansion module mounting assembly into position directly beneath the bottom-most shelf of the module mounting

NOTE!

2. Remove the rear cover from the bottom-most shelf of the module mounting assembly installed in the system and the

NOTE!

3. Secure the existing shelf’s busbars to the expansion shelf’s mating busbars with the supplied interconnect busbars and

4. Install the supplied side brackets (both sides) to tie the existing shelf to the expansion module mounting assembly.

5. If the Expansion Shelf Accepts DC-DC Converters: Refer to the Power System Installation Instructions (IM581127000) and

6. Remove the termination cable from the bottom controller bus interconnection connector on the bottom-most existing shelf

Refer to Figure 4.2 as this procedure is performed.

assembly installed in the system (no space between shelves). Secure the expansion module mounting assembly to the relay
rack with the provided 12-24 x 1/2" mounting screws and grounding washers.

Install the ground washers so the teeth make contact with the metal on the mounting angles. Torque all screws to 65

in-lbs.

expansion module mounting assembly.

Apply electrical anti-oxidizing compound to busbar mating surfaces before performing the next step.

hardware. Hardware build-up is: shelf’s busbar, interconnect busbar, 1/4" hardened flat washer, 1/4" Belleville lock washer, 1/4­20 nut. Install the Belleville lock washer so the concave side is towards the busbar. Torque all connections to 60 in-lbs.

install the converter output jumpers.

and plug it into the bottom controller bus interconnection connector on the expansion shelf. See Figure 4.2.

7. Plug the controller bus connector on the cable exiting the top of the expansion shelf into the mating connector exiting the

bottom of the shelf above it. See Figure 4.3.

8. Replace the rear covers removed in step 2) above.

9. Refer to the Power System Installation Instructions (IM581127000) and connect AC input power to the expansion shelf.

10. Refer to the rectifier and converter User Instructions and install modules into the expansion shelf as required.

13

Figure 4.2 Installing a Field Expansion Module Mounting Assembly

Interconnect
Busbars

588705200

(8-Position Expansion Shelf)

588705203

(Existing 24-Position Shelf Assembly)

(588705201 and 588705202 similar)

1/4" Hardened Flat Washer
1/4" Belleville Lock Washer
1/4-20 Nut
(16 places)
Torque to 60 in-lbs.

Apply electrical anti-oxidizing compound to
busbar mating surfaces before installing
Expansion Module Mounting Shelf.

Rear View

Bracket to secure
shelves together.

12-24 x 1/2"
Thread Forming
Hex Head Screw
(2 per side)
No. 10/12
Ground Washer
(2 per side)
(Torque to 65 in-lbs)

1. Slide the Expansion Module Mounting Shelf
into the relay rack.

2. Secure the Expansion Module Mounting S helf
to the relay rack.

3. Remove rear cover from existing shelf and
the Expansion Module Mounting Shelf.

4. Secure the existing shelf’s busbars to the
expansion shelf’s busbars with the supplied
interconnect busbars.

5. Tie the existing shelf to the Expansion
Module Mounting Shelf with the supplied
brackets (both sides).

5. Remove the connector from the bottom
controller communications connector in the
existing shelf and plug it into the bottom
controller communications connector in the
expansion shelf. Plug the loose end of the
bottom controller communications connector
in the existing shelf into the loose end of the
top controller communications connector in
the expansion shelf.

6. Reinstall rear covers.

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

14

Existing Communications Cable Connections

Distribution
Cabinet

Module
Mounting
Shelf

Brown and

Brown/W hite

Wires

New Communications Cable Connections

Brown and

Brown/W hite

Wires

Slate and

Slate/White

Wires

Slate and

Slate/White

Wires

Distribution
Cabinet

Module
Mounting
Shelf

Expansion
Module
Mounting
Shelf

Figure 4.3 Communications Cables

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

15

4.4 Reconfiguring a Dual Voltage Distribution Panel (List DA, DB, DC, DD)

Perform the following procedure to reconfigure a dual voltage distribution panel (List DA, DB, DC, DD) to move distribution positions
from one voltage to the other.

DANGER! Performing this procedure exposes service personnel to battery potential. Exercise extreme caution not to

inadvertently contact or have any tool inadvertently contact any energized electrical termination.

NOTE!

Save all removed hardware. Hardware will be re-used.

Removing the Distribution Panel

Procedure

1. Performing this procedure may activate external alarms. Do one of the following. If possible, disable these alarms. If these

alarms cannot be easily disabled, notify the appropriate personnel to disregard any future alarms associated with this system
while the procedure is being performed.

2. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position.

3. Remove the plastic shield covering the circuit breakers and/or fuseholders on the distribution panel to be removed by

loosening the screws holding the shield and sliding the shield upwards.

4. Record circuit breaker and/or fuse positions and sizes.

5. Remove circuit breakers and/or fuseholders.

6. Label the load leads.

7. Disconnect all load leads from the circuit breaker and/or fuse positions.

8. Disconnect all load return leads from the ground busbar.

9. Refer to Figure 4.4 and remove the hardware securing the -48V jumper leads. Insulate and tie back these leads.

10. Refer to Figure 4.4 and locate the in-line FA/CBA connector located near the back of the distribution panel. Separate the

connector halves.

11. Refer to Figure 4.4 and remove the hardware securing the distribution panel’s ground busbar to the distribution cabinet’s

busbar.

12. Refer to Figure 4.4 and remove the hardware securing the distribution panel’s system load distribution busbar to the

distribution cabinet’s busbar.

13. Refer to Figure 4.4 and remove the hardware securing the distribution panel to the distribution cabinet. Remove the

distribution panel from the distribution cabinet.

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

16

List DB Dual Voltage
Distribution Panel
(List DA, DC, DD similiar)

Components removed in illustration for clarity only.

Front

List DB Dual Voltage
Distribution Panel
(List DA, DC, DD similiar)

Ground Busbar
Hardware

In-Line
FA/CBA
Connector

-48V Jumpers

Distribution Panel
Hardware

Distribution Panel
Hardware

System Load
Distribution Busbar
Hardware

1/4-20 x 5/8 Bolt
1/4” Lock Washer
1/4” Flat Washer
Torque to 75 in-lbs.

1/4-20 x 1” Bolt
1/4” Belleville Lock Washer
1/4” Flat Washer
Torque to 60 in-lbs.

10-32 x 5/8” Screw
#10 Flat Washer
Torque to 31 in-lbs.

1/4-20 x 1” Bolt
1/4” Belleville Lock Washer
1/4” Flat Washer
Torque to 60 in-lbs.

10-32 x 5/8” Screw
#10 Flat Washer
Torque to 31 in-lbs.

Figure 4.4 Removing/Installing the Distribution Panel

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

17

List DB Dual

Voltage
Distribution Panel
(List DA, DC, DD similar)

Move -48V Input Power

Busbar 4-Positions

Left or Right in Increment

of Four Positions

Move -48V Input Lead Busbars

4-Positions Left or Right in

Increments of Four Positions

Distribution Device
Lead Busbars

Distribution Device

Lead Busbars

Move -48V Input Power Busbar

4-Positions Left or Right in

Increments of Four Positions

Front

Rear

Move -48V

Distribution Device

Busbar Right

Move +24V
Distribution Device
Busbar Left

OR

Reworking the Distribution Panel Introduction

You can reconfigure the distribution panel to swap +24V distribution positions for -48V distribution positions, and vice versa, in
groups of four. The resulting assembly can have (5) +24V and (16) -48V, (9) +24V and (12) -48V, (13) +24V and (8) -48V, or (17)
+24V and (4) -48V positions.

You do this by removing the subsystem input power busbar and associated input lead busbars, then moving the appropriate
distribution device busbar and associated distribution device lead busbars left or right in increments of four (4) positions, then
re-installing the subsystem input power busbar and associated input lead busbars. The distribution devices alarm spring most also be
appropriately moved. Refer to the following procedures to reconfigure the distribution panel.

Figure 4.5 Reworking the Distribution Panel Introduction

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

18

List DB Dual Voltage
Distribution Panel
(List DA, DC, DD similar)

-48V Input

Power Busbar

-48V Input

Power Busbar

-48V Input Lead Busbars

-48V Input Lead Busbars

Front

Rear

Press in Tabs to Release

Input Lead Busbars

Removing the -48V Input Power Busbar and Input Lead Busbars

Procedure

1. From the front of the distribution panel, remove the three bolts and hardware from the -48V input power busbar.

2. From the rear of the distribution panel, remove the two bolts and hardware from the -48V input power busbar.

3. Remove the -48V input power busbar from the distribution panel. Set aside for later re-installation.

4. Remove the three -48V input lead busbars from the distribution panel. Refer to Figure 4.6 and press in the tab to release a

-48V input lead busbar. Slide the -48V input lead busbar up and out of the distribution panel. Repeat for all three busbars.

Set aside for later re-installation.

Figure 4.6 Removing the -48V Input Power Busbar and Input Lead Busbars

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

19

Moving the Distribution Device Busbar and Distribution Lead Busbars Left or Right

Procedure

1. Determine how you are reconfiguring the distribution panel (adding -48V or +24V distribution positions). Locate the

distribution device busbars and distribution device lead busbars to be moved.

2. From the front of the distribution panel, remove the two screws and hardware securing the appropriate distribution device

busbar(s). The busbar(s) are located to the left or to the right of the open space created when the -48V input power busbar

was removed in the previous procedure.

3. From the rear of the distribution panel, remove the two bolts and hardware securing the distribution device link busbar(s)

between the distribution device busbar(s) to be moved and the one adjacent to it.

4. Slide the distribution device busbar(s) three (3) positions to the left or to the right.

5. From the front of the distribution panel, re-install the two screws and hardware to secure the distribution device busbar(s)

just moved. Torque as indicated in Figure 4.7.

6. From the rear of the distribution panel, re-install the distribution device link busbar(s) between the distribution device

busbar(s) just moved and the one adjacent to it with the two bolts and hardware previously removed. Apply anti-oxidizing

compound to busbar mating surfaces. Torque as indicated in Figure 4.7.

7. Remove the four distribution device lead busbars located above the position(s) of each of the distribution device busbar(s)

were moved from. Refer to Figure 4.7 and press in the tab to release a distribution device lead busbar. Slide the distribution

device lead busbar up and out of the distribution panel. Repeat for all distribution device lead busbars.

8. Remove the polarity labels from these positions. Turn over the polarity labels so the other polarity shows. Re-install the

polarity labels to the left or right of the original position (into the positions the distribution device lead busbars will be moved

to in the next step).

9. Re-install the distribution device lead busbars three (3) positions to the left or to the right of the original positions. Slide a

distribution device lead busbar down and into the distribution panel. Repeat for all distribution device lead busbars.

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

20

List DB Dual Voltage
Distribution Panel
(List DA, DC, DD similar)

Front

Move -48V Distribution

Device Busbar(s)

3 Positions Right

Move +24V Distribution
Device Busbar(s)
3 Positions Left

OR

OR

Remove polarity label.
Turn over polarity label
so other polarity shows.
Replace polarity label in
relocated distribution
positions.

Distribution Device Lead Busbars

Press in

T

abs to Release

Distribution Device Lead Busbars

Rear

Move -48V Distribution
Device Busbar(s)
3 Positions Right

Move +24V Distribution

Device Busbar(s)

3 Positions Left

OR

6-32 x 3/4 Screw
#6 Lock Washer
#6 Flat Washer
Torque to 11 in-lbs.

1/4-20 x 5/8 Bolt
1/4” Lock Washer
1/4” Flat Washer
Torque to 75 in-lbs.

Apply a thin coating of electrical anti-oxidizing
compound to the mating surfaces of the busbars.

Figure 4.7 Moving the Distribution Device Busbar and Distribution Lead Busbars Left or Right

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

21

List DB Dual Voltage
Distribution Panel
(List DA, DC, DD similar)

Typical
Before View

Exploded View

Typical
After View

Rear

Rear

Rear

Move Alarm Spring(s)

3 Positions Right

Place Alarm Spring

Link on Opposite Side

Place Alarm Spring
Link on Opposite Side

Move Alarm Spring(s)
3 Positions Left

OR

6-19 x 1/2 Screw

Torque to 9.6 in-lbs.

6-19 x 5/16 Screw

Torque to 9.6 in-lbs.

Moving the Alarm Spring(s) Left or Right

Procedure

1. Located the alarm spring(s) and alarm spring link(s) to be moved.

2. From the rear of the distribution panel, remove the appropriate alarm spring link(s).

3. From the rear of the distribution panel, remove the screw(s) from the alarm spring(s) to be moved. Slide the alarm spring(s)

three (3) positions to the left or to the right. Secure with the screw(s) just removed. Torque as indicated in Figure 4.8.

4. Re-install the alarm spring link(s) to the opposite side of the alarm spring(s) just moved and to the alarm spring adjacent to it.

Torque as indicated in Figure 4.8.

Figure 4.8 Moving the Alarm Spring(s) Left or Right

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

22

List DB Dual Voltage
Distribution Panel
(List DA, DC, DD similar)

-48V Input

Power Busbar

-48V Input

Power Busbar

-48V Input Lead Busbars

-48V Input Lead Busbars

Front

Rear

Press in Tabs to Release

Input Lead Busbars

1/4-20 x 5/8 Bolt
1/4” Lock Washer
1/4” Flat Washer
Torque to 75 in-lbs.

Enlarged View

Enlarged View

1/4-20 x 3/4 Bolt
1/4” Lock Washer
1/4” Flat Washer
Torque to 75 in-lbs.

Apply a thin coating of electrical anti-oxidizing
compound to the mating surfaces of the busbars.

Re-Installing the -48V Input Power Busbar and Input Lead Busbars

Procedure

1. Re-install the -48V input lead busbars. Slide the -48V input lead busbars down and into the distribution panel in the

mounting locations created when the distribution device lead busbars were moved in the previous procedure.

2. Re-install the -48V input power busbar into the distribution panel in the position created when the distribution device busbar

in the previous procedure was moved.

3. From the front of the distribution panel, re-install the three bolts and hardware to secure the -48V input power busbar to the

-48V input lead busbars. Torque as indicated in Figure 4.9.

4. From the rear of the distribution panel, re-install the two bolts and hardware to secure the -48V input power busbar. Torque

as indicated in Figure 4.9.

Figure 4.9 Re-Installing the -48V Input Power Busbar and Input Lead Busbars

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

23

Move this Label Left

or Right as Required

Moving the 24V/48V Label on the Distribution Device Cover to the New Position

Procedure

1. Move the polarity label on the distribution device cover right or left to align with the distribution positions moved in the

previous procedures.

Figure 4.10 Moving the 24V/48V Label on the Distribution Device Cover to the New Position

Replacing the Distribution Panel

NOTE!

Procedure

1. Orient the distribution panel into the distribution cabinet, checking to ensure no wires are pinched. Replace the hardware

2. Reconnect the -48V jumper leads. Refer to Figure 4.4 for hardware build-up. Torque as indicated in Figure 4.4.

3. Replace the hardware securing the distribution panel’s system load distribution busbar to the distribution cabinet’s busbar.

4. Replace the hardware securing the distribution panel’s ground busbar to the distribution cabinet’s busbar. Torque as

5. Plug the in-line FA/CBA connector located near the back of the distribution panel into the mating connector half in the

WARNING! In the next step, observe correct polarity; otherwise equipment damage will result.

6. Reconnect the load return leads to the ground busbar.

In the following procedure, before making busbar-to-busbar connections, apply a thin coating of electrical anti-

oxidizing compound to the mating surfaces of the busbars.

securing the distribution panel to the distribution cabinet. Refer to Figure 4.4 for hardware build-up. Torque as indicated in

Figure 4.4.

Refer to Figure 4.4 for hardware build-up. Torque as indicated in Figure 4.4.

indicated in Figure 4.4.

distribution cabinet. Refer to Figure 4.4.

7. Reconnect the load leads to the circuit breaker and/or fuse positions.

8. Replace the circuit breakers and/or fuseholders.

9. Replace the plastic shield covering the circuit breakers and/or fuseholders on the distribution panel.

10. Verify no circuit breaker/fuse alarms are active.

11. Close the distribution cabinet’s front door. Turn the latch clockwise to secure the door.

12. Ensure that there are no local or remote alarms active on the system.

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

24

4.5 Reconfiguring a Dual Voltage Distribution Panel (List DE, DF, DG, DH, DJ,

DK)

Perform the following procedure to reconfigure a dual voltage distribution panel (List DE, DF, DG, DH, DJ, DK) to move distribution
positions from one voltage to the other.

DANGER! Performing this procedure exposes service personnel to battery potential. Exercise extreme caution not to

inadvertently contact or have any tool inadvertently contact any energized electrical termination.

NOTE!

Save all removed hardware. Hardware will be re-used.

Removing the Distribution Panel

Procedure

1. Performing this procedure may activate external alarms. Do one of the following. If possible, disable these alarms. If these

alarms cannot be easily disabled, notify the appropriate personnel to disregard any future alarms associated with this system

while the procedure is being performed.

2. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position.

3. Remove the plastic shield covering the circuit breakers and/or fuseholders on the distribution panel to be removed by

loosening the screws holding the shield and sliding the shield upwards.

4. Record circuit breaker and/or fuse positions and sizes.

5. Remove circuit breakers and/or fuseholders.

6. Label the load leads.

7. Disconnect and insulate all load leads from the circuit breaker and/or fuse positions.

8. Disconnect and insulate all load return leads from the ground busbar.

9. Refer to Figure 4.11 and remove the hardware securing the -48V jumper leads. Insulate and tie back these leads.

10. Refer to Figure 4.11 and locate the in-line FA/CBA connector located near the back of the distribution panel. Separate the

connector halves.

11. Refer to Figure 4.11 and remove the hardware securing the distribution panel’s ground busbar to the distribution cabinet’s

busbar.

12. Refer to Figure 4.11 and remove the hardware securing the distribution panel’s system load distribution busbar to the

distribution cabinet’s busbar.

13. Refer to Figure 4.11 and remove the hardware securing the distribution panel to the distribution cabinet. Remove the

distribution panel from the distribution cabinet.

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

25

Reworking the Distribution Panel

You can reconfigure the distribution panel to swap +24V distribution positions for -48V distribution positions, and vice versa, in
groups of four. The resulting assembly can have (0) +24V and (26) -48V, (6) +24V and (20) -48V, (10) +24V and (16) -48V, (14)
+24V and (12) -48V, (18) +24V and (8) -48V, (22) +24V and (4) -48V, or (26) +24V and (0) -48V positions.

You do this by moving the shorting bus and CBA/FA alarm strap. Refer to Figure 4.12 to reconfigure the distribution panel.

Note that for a List DE distribution panel, you must also move the subsystem input power busbar as shown in Figure 4.12.

Note that if you reconfigure a distribution panel for all subsystem voltage (List DK) or all system voltage, you must also move the
extra CBA/FA alarm strap stored on the far left (as viewed from the rear) to the far right position (as shown in Figure 4.12).

Note that if you reconfigure a distribution panel for all subsystem voltage (List DK), you must disconnect and insulate the system
CBA/FA lead (as shown in Figure 4.12).

Note that if you reconfigure a distribution panel for all system voltage, you must disconnect and insulate the subsystem CBA/FA lead
(as shown in Figure 4.12).

Note that if the panel is re-configured for all subsystem positions (List DK), the distribution cabinet's load side busbar must be
removed since it is not to be connected to the distribution panel and will cause interference. Note that the busbar that is removed
should be retained in the event that the panel is re-configured at a later date to revert back to a panel with some subsystem positions.

26

Components removed
in illustration for clarity only.

In-Line
FA/CBA
Connector

List DG
(Lists DE , DF,
DH, DJ, and DK similar.)

Rear

Connect “-48V” jumpers to an available landing here.
Assembly order is: lug, 1/4" flat washer,
1/4" lock washer, 1/4-20 x 3/4” bolt.
Torque to 84 in-lbs.

Ground Busbar
Hardware

Distribution Panel
Hardware

Distribution Panel
Hardware

System Load
Distribution Busbar
Hardware

1/4-20 x 1” Bolt
1/4” Belleville Lock Washer
1/4” Flat Washer
Torque to 60 in-lbs.

10-32 x 5/8” Screw
#10 Flat Washer
Torque to 31 in-lbs.

1/4-20 x 1” Bolt
1/4” Belleville Lock Washer
1/4” Flat Washer
Torque to 60 in-lbs.

10-32 x 5/8” Screw
#10 Flat Washer
Torque to 31 in-lbs.

Front

Front

Lugs can be landed
back-to-back.

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

Figure 4.11 Removing/Installing the Distribution Panel

27

List DE Dual Voltage
Distribution Panel

List DF Dual Voltage
Distribution Panel

List DG Dual Voltage
Distribution Panel

List DH Dual Voltage
Distribution Panel

List DJ Dual Voltage
Distribution Panel

List DK Dual Voltage
Distribution Panel

Reconfigured for all
System Positions

Extra Shorting
Block Stored Here

Extra Shorting
Block Stored Here

Extra Shorting
Block Stored Here

Extra Shorting
Block Stored Here

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

Figure 4.12 Reworking the Distribution Panel (cont’d on next page)

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

28

From the front, remove the
polarity labels for the positions
reassigned and turn the label
over so the other polarity shows.
See Detail A.

From the front, remove the voltage
barrier shield from the right-most

EXISTING sub-system distribution
position and place it in the right-most
NEW sub-system distribution position.

See Detail B.

List DE Only: Move the -48V Input Power
Busbar one (1) position to the left.

Before

After

List DE Only: Move the Shorting Bus
at the desired point of the voltage division
to the storage position shown in a
previous illustration.

List DE Only: Move the CBA/FA
alarm strap at the desired point
of the voltage division to the
location above the relocated

-48V Input Power Busbar.

Move CBA/FA

Alarm Strap Here

6-19 x 1/2 Screw

Torque to 9.6 in-lbs.

Move Shorting
Bus Here

Apply a thin coating of
electrical anti-oxidizing
compound to the mating
surfaces of the busbars.

1/4-20 x 5/8 Bolt
1/4” Lock Washer
1/4” Flat Washer
Torque to 75 in-lbs.

Move

-48V Input
Power Bus Here

List DE Dual Voltage
Distribution Panel

Figure 4.12 Reworking the Distribution Panel (cont’d from previous page, cont’d on next page)

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

29

Before

After

List DF, DG, DH, DJ
Dual Voltage Distribution Panel
(DF Shown, Others Similar)

Move the Shorting Bus at the desired point of
of the voltage division to the new location as
shown in a previous illustration.

Move Extra
Shorting Bus

Extra Shorting Bus

Move the CBA/FA alarm
strap at the desired point
of the voltage division to
the new location.

Move CBA/FA

Alarm Strap

Here

Move CBA/FA
Alarm Strap Here

6-19 x 1/2 Screw
Torque to 9.6 in-lbs.

Move Shorting

Bus Here

Move Shorting
Bus Here

Input Power
Busbar Not
Shown

Input Power
Busbar Not
Shown

Apply a thin coating of
electrical anti-oxidizing
compound to the mating
surfaces of the busbars.

1/4-20 x 5/8 Bolt
1/4” Lock Washer
1/4” Flat Washer
Torque to 75 in-lbs.

From the front, remove the
polarity labels for the positions
reassigned and turn the label
over so the other polarity shows.
See Detail A.

From the front, remove the voltage
barrier shield from the right-most

EXISTING sub-system distribution
position and place it in the right-most
NEW sub-system distribution position.

See Detail B.

Figure 4.12 Reworking the Distribution Panel (cont’d from previous page, cont’d on next page)

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

30

From the front, remove the
polarity labels for the positions
reassigned and turn the label
over so the other polarity shows.
See Detail A.

From the front, remove the voltage
barrier shield. See Detail B.

Distribution Panel Reconfigured
for All Subsysytem (List DK) or
All System Positions

Apply a thin coating of
electrical anti-oxidizing
compound to the mating
surfaces of the busbars.

1/4-20 x 5/8 Bolt
1/4” Lock Washer
1/4” Flat Washer
Torque to 75 in-lbs.

Move CBA/FA Alarm

Strap FROM Here

Modified
Panel View

Before Modification View:
An Alarm Strap is Stored Here

After Modification View:

The Alarm Strap is Moved Here

Move CBA/FA Alarm

Strap TO Here

6-19 x 1/2 Screw

Torque to 9.6 in-lbs.

Ensure the Subsystem

Busbar is Installed in

this Position

All Except List DE:
Move the Extra Shorting Bus Stored
as shown in a Previous Illustration
to the Open Position

Note that if you reconfigure a distribution panel
for all system voltage, you must disconnect and
insulate the subsystem CBA/FA lead attached
here.

Note that if you reconfigure a distribution panel
for all subsystem voltage (List DK), you must
disconnect and insulate the system CBA/FA
lead attached here.

Figure 4.12 Reworking the Distribution Panel (cont’d from previous page, cont’d on next page)

31

For reassigned distribution positions...

1. Remove polarity label plug buttons.

2. Remove polarity label.

3. Turn over polarity label so other polarity shows.

4. Replace polarity label.

5. Replace polarity label plug buttons.

For right-most reassigned sub-system distribution position...

1. Remove the load lug from the right-most
EXISTING sub-system distribution position.

2. Replace the load lug from the right-most EXISTING sub-system
distribution position WITHOUT the voltage barrier shield.

3. Remove the load lug from the right-most
NEW sub-system distribution position.

4. Replace the load lug from the right-most NEW sub-system
distribution position WITH the voltage barrier shield.

Front

Load
Lug

Load
Lug

New Location
Voltage Barrier
Shield

System
Voltage

Sub-System

Voltage

Old Location
Voltage Barrier
Shield

Detail A

Front

Detail B

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

Figure 4.12 Reworking the Distribution Panel (cont’d from previous page)

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

32

Replacing the Distribution Panel

NOTE!

In the following procedure, before making busbar-to-busbar connections, apply a thin coating of electrical anti-

oxidizing compound to the mating surfaces of the busbars.

Procedure

NOTE!

If the panel is re-configured for all subsystem positions (List DK), the distribution cabinet's load side busbar must be

removed since it is not to be connected to the distribution panel and will cause interference. Note that the busbar that is

removed should be retained in the event that the panel is re-configured at a later date to revert back to a panel with some

subsystem positions.

1. If the panel is re-configured for all subsystem positions, remove the distribution cabinet's load side busbar. Save this busbar

and hardware for future use.

2. Orient the distribution panel into the distribution cabinet, checking to ensure no wires are pinched. Replace the hardware

securing the distribution panel to the distribution cabinet. Refer to Figure 4.11 for hardware build-up. Torque as indicated in

Figure 4.11.

3. Reconnect the -48V jumper leads. Refer to Figure 4.11 for hardware build-up. Torque as indicated in Figure 4.11

. For a panel
re-configured to all +24V positions, the -48V jumper leads MUST not be used. They should be retained at the site for
future use if necessary.

4. In all except panels re-configured for all subsystem positions (List DK), replace the hardware securing the distribution panel’s

system load distribution busbar to the distribution cabinet’s busbar. Refer to Figure 4.11 for hardware build-up. Torque as
indicated in Figure 4.11.

5. Replace the hardware securing the distribution panel’s ground busbar to the distribution cabinet’s busbar. Torque as

indicated in Figure 4.11.

6. Plug the in-line FA/CBA connector located near the back of the distribution panel into the mating connector half in the

distribution cabinet. Refer to Figure 4.11.

WARNING! In the next step, observe correct polarity; otherwise equipment damage will result.

7. Reconnect the load return leads to the ground busbar.

8. Reconnect the load leads to the circuit breaker and/or fuse positions.

9. Replace the circuit breakers and/or fuseholders.

10. Replace the plastic shield covering the circuit breakers and/or fuseholders on the distribution panel.

11. Verify no circuit breaker/fuse alarms are active.

12. Close the distribution cabinet’s front door. Turn the latch clockwise to secure the door.

13. Ensure that there are no local or remote alarms active on the system.

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4.6 Changing the Controller’s LVD Control Level for a Contactor

The controller has two available LVD control levels (LVD1 and LVD2). The level used to control a contactor is determined by which
connector on the LVD circuit card its control leads are plugged into. To change the LVD control level for a contactor, simply switch
which LVD connector it is plugged into (if an open connector is available) on the LVD circuit card. Refer to Figure 5.16 and Figure 5.17
for connector location and function.

NOTE!

DO NOT change a Low Voltage Load Disconnect contactor to LVD Control Level 2 (LVD2) if the system is furnished

with a Low Voltage Battery Disconnect contactor.

5 Troubleshooting and Repair

5.1 Contact Information

Refer to Section 4154 (provided with your customer documentation) for support contact information.

5.2 Controller, Rectifiers, and Optional Converters

For troubleshooting and repair 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)

5.3 Controller Configuration

If any controller configuration settings were changed, refer to the ACU+ Instructions (UM1M820BNA) or NCU Instructions
(UM1M830BNA) and save a copy of the configuration file. This file can be used to restore the controller settings, if required, at a later
date.

• Note that provided on a USB drive furnished with the system is a controller configuration drawing (C-drawing) and the

controller configuration files loaded into the controller as shipped.

5.4 System Troubleshooting Information

This system is designed for ease in troubleshooting and repair. The various indicators as described in “Local Controls and Indicators”
on page 4 and in the Controller and Rectifier Instructions are designed to isolate failure to a specific element. Once the faulty element
has been identified, refer to “Replacement Information” on page 34 and “Replacement Procedures” on page 35.

Troubleshooting Alarm Conditions on the Controller

The controller displays alarm conditions as listed in the “Available Alarms” or “Resolving Alarms” section of the controller’s User
Manual. Programmable external alarm relays are also available. Refer to the System Installation Instructions (IM581127000) and the
configuration drawing (C-drawing) supplied with your power system documentation for your alarm relay configurations.

The controller’s
(UM1M820BNA) or NCU Instructions (UM1M830BNA) to access these menus.

Active Alarm

and

Alarm History

submenus allow the User to view alarm details. Refer to the ACU+ Instructions

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34

Checking the Controller’s Current Limit Point after Adding or Removing a Rectifier Module

If a rectifier module is added to the power system, the system current limit point will automatically increase by the percentage each
existing rectifier was set to provide prior to the addition.

If a rectifier module is removed from the system (and the Rect Comm Fail alarm is reset), the current limit point will remain unchanged
unless the capacity of the remaining rectifiers is not sufficient to maintain the present current limit point. If that happens, the current
limit point will automatically increase to the maximum (121% of the remaining rectifiers).

It is recommended that the current limit point be checked whenever a rectifier module is added to or removed from the power system.

When setting total rectifier current limit, the set point to each unit is the total set point divided by the number of units. For example, if
the system contains five rectifiers and the current limit is set to 150 amps then each rectifier has a current limit set point of 30 amps.
If one or more rectifiers are removed or fail it will take several seconds for the individual set points to the remaining rectifiers to be
reset. In the example given, if one rectifier is removed the current limit set point will drop to 120 amps (30 amps times four remaining
rectifiers) until the controller can send updated set points to the remaining rectifiers. This takes a couple communication cycles
(several seconds) after which each rectifier would have a new set point of 37.5 amps for a total of 150 amps. The total current limit of
the rectifiers should not be set such that the loss of the redundant rectifiers will cause this temporary set point to drop below the
actual maximum expected load. If batteries are used on the rectifier output, the batteries should support the load until the current
limit set points can be re-established due to loss of a rectifier.

Refer to the ACU+ Instructions (UM1M820BNA) or NCU Instructions (UM1M830BNA) for a procedure.

Clearing a Rectifier Communications Fail Alarm after Removing a Rectifier

If a rectifier module is removed from the system, a rectifier communications failure alarm is generated. If the rectifier module will not
be replaced, the alarm should be cleared.

Refer to the ACU+ Instructions (UM1M820BNA) or NCU Instructions (UM1M830BNA) for a procedure.

Clearing a Converter Communications Fail Alarm after Removing a Converter

If a converter module is removed from the system, a converter communications failure alarm is generated. If the converter module will
not be replaced, the alarm should be cleared.

Refer to the ACU+ Instructions (UM1M820BNA) or NCU Instructions (UM1M830BNA) for a procedure.

Clearing a Rectifier Lost Alarm

If the controller resets while a rectifier communications fail alarm is active, the rectifier communications fail alarm is replaced with a
rectifier lost alarm.

Refer to the ACU+ Instructions (UM1M820BNA) or NCU Instructions (UM1M830BNA) for a procedure to clear the alarm.

Clearing a Converter Lost Alarm

If the controller resets while a converter communications fail alarm is active, the converter communications fail alarm is replaced with
a converter lost alarm.

Refer to the ACU+ Instructions (UM1M820BNA) or NCU Instructions (UM1M830BNA) for a procedure to clear the alarm.

5.5 Replacement Information

Replacement Assemblies

When a trouble symptom is localized to a faulty rectifier module, converter module, controller, or system circuit card; that particular
device or circuit card should be replaced in its entirety. No attempt should be made to troubleshoot or repair individual components
on any rectifier module, converter module, controller, or circuit card.

Refer to SAG581127000 (System Application Guide) for replacement part numbers.

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35

Safety Cover

P/N 248898700

(GMT-X)

Safety Cover

P/N 102774

(GMT-Y)

5.6 Replacement Procedures

DANGER! Adhere to the “Important Safety Instructions” presented at the front of this document.

5.6.1 Replacing a Rectifier or Converter Module

Refer to the Rectifier User Instructions (UM1R243000) or Converter User Instructions (UM1C24481500) for a rectifier and converter
module replacement procedure. Refer also to “System Troubleshooting Information” on page 33.

The rectifier or converter module being replaced 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.

5.6.2 Replacing the Controller

Refer to the ACU+ Instructions (UM1M820BNA) or NCU Instructions (UM1M830BNA) for a controller replacement procedure.

5.6.3 Replacing a Distribution Device

General

Replace distribution devices with the same type and rating. Refer to System Application Guide SAG581127000 for part numbers.

Distribution Fuse “Alarm Fuse” Replacement

If a distribution fuse opens, the associated alarm fuse opens. Replace the distribution fuse before replacing the alarm fuse.

Procedure

1. An alarm fuse is removed by pulling it straight out of the fuseholder. If the alarm fuse is located in a modular fuse carrier, hold

the fuse carrier in place with your thumb while pulling on the alarm fuse to prevent the entire carrier from inadvertently being
pulled out.

2. Safety fuse covers are provided for all Bussmann GMT type fuses installed in the system. These covers snap onto the fuses

and provide protection from exposed electrical terminations when a fuse opens. Insure that the safety fuse cover is installed
after replacing a fuse. Refer to Figure 5.1 for installation details.

Figure 5.1 Installation of Safety Fuse Covers

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36

Replacing a TPS/TLS Fuse

Procedure

NOTE!

Refer to Figure 5.2 as this procedure is performed.

1. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position.

2. Remove the fuse carrier from the mounted fuseholder body by pulling it straight out.

3. Remove the open fuse from the fuse carrier and replace it with the same type and rating.

4. Replace the alarm fuse located in the front of the fuse carrier with the same type and rating. Ensure that a plastic safety

cover is installed on the alarm fuse.

5. Push the fuse carrier securely back into the mounted fuseholder body. Note that a polarizing key on the bottom of the

carrier prevents the carrier from being inserted upside down.

6. Verify no Fuse Alarms are active.

7. Close the distribution cabinet’s front door. Turn the latch clockwise to secure the door.

Replacing a Bullet Nose Fuseholder

Procedure

NOTE!

Refer to Figure 5.2 as this procedure is performed.

1. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position.

2. Remove the fuse carrier from the mounted fuseholder body by pulling it straight out. Hold the fuseholder body while you pull

the fuse carrier from the body.

3. Gently rock the defective fuseholder up and down while pulling firmly outward until the fuseholder is free from the

distribution panel.

4. Orient the fuseholder as shown in Figure 5.2. Insert the terminals on the rear of the fuseholder into their corresponding

sockets on the distribution panel. Ensure the alarm contact on the back of the fuseholder makes contact with the alarm
terminal on the spring strip. Push fuseholder in firmly until fully seated in the distribution panel.

5. Push the fuse carrier securely back into the mounted fuseholder body. Note that a polarizing key on the bottom of the

carrier prevents the carrier from being inserted upside down.

6. Verify no Fuse Alarms are active.

7. Close the distribution cabinet’s front door. Turn the latch clockwise to secure the door.

37

Figure 5.2 Replacing a TPS/TLS Fuseholder and/or Fuse

Fuseholder Asse

mbly

Longer Side
to the Bottom

Shorter Side
to the Top

Fuse Carrier

Fuseholder Body

TPS/TLS Fuse

Polarizing Keyway
Matches Key on
Bottom of Fuse Carrie r

Fuseholder Assembly
Exploded View

Fuseholder Assembly (P/N 117201) includes
body & carrier, alarm fuse, and alarm fuse safety cover.

Insert these terminals
into corresponding sockets
on distribution panel .

GMT-X

Safety Fuse Cover

(Replacement

P/N 248898700)

GMT-18/100A
Alarm Fuse
(Replacement
P/N 248610301)

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

38

Insert these terminals
into corresponding sockets
on distribution panel.

Longer Side
to the Bottom

Shorter Side
to the Top

Lettering on
handle must be
right side up.

Turn off
before installing.

Replacing a Bullet Nose Circuit Breaker

Procedure

NOTE!

Refer to Figure 5.3 as this procedure is performed.

1. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position.

2. Operate the defective circuit breaker to the OFF position.

3. Gently rock the defective circuit breaker up and down while pulling firmly outward until the breaker is free from the

distribution panel.

4. Ensure that the circuit breaker is in the OFF position, and is of the correct rating.

5. Orient the circuit breaker as shown in Figure 5.3. Insert the terminals on the rear of the circuit breaker into their

corresponding sockets on the distribution panel. Ensure the alarm contact on the back of the circuit breaker makes contact
with the alarm terminal on the spring strip. Push distribution device in firmly until fully seated in the distribution panel.

6. Operate the replacement circuit breaker to the ON position.

7. Verify no Circuit Breaker Alarms are active.

8. Close the distribution cabinet’s front door. Turn the latch clockwise to secure the door.

Figure 5.3 Replacing a Bullet Nose Circuit Breaker

39

Replacing a TPH Fuse

Fuse

Fuse Carrier

Fuseholder Body

Procedure

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

NOTE!

Refer to Figure 5.4 as this procedure is performed.

1. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position.

2. Remove the fuse carrier from the mounted fuseholder body by grasping its handle and pulling straight out.

3. Remove the open fuse from the fuse carrier and replace it with the same type and rating.

4. Push the fuse carrier securely back into the mounted fuseholder body.

5. On the distribution panel, locate the open alarm fuse associated with the TPH fuse being replaced. Replace the alarm fuse

with the same type and rating. Ensure that a plastic safety cover is installed on the alarm fuse.

6. Close the distribution cabinet’s front door. Turn the latch clockwise to secure the door.

Figure 5.4 Replacing a TPH Fuse

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40

Fuse Case

Open Fuse Case View

TPL Fuse

Fuse Installed in
Open Fuse Case
(rear view)

Fuse Installed in
Closed Fuse Case
(rear view)

Fuseblock
(P/N 516241)

GMT-18/100A Alarm Fuse

(P/N 248610301) and

GMT-X Safety Fuse Cover

(P/N 248898700)

(Both are provided

w/ fuseblock)

Replacing a TPL-B Fuse

Procedure

NOTE!

Refer to Figure 5.5 as this procedure is performed.

1. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position.

2. Remove the fuse case from the mounted fuse block by grasping its handle and pulling it straight out.

3. Open the fuse case.

4. Remove the open fuse from the fuse case and replace it with the same type and rating.

5. Close the fuse case.

6. Push the fuse case securely back into the mounted fuse block.

7. Replace the alarm fuse located in the front of the TPL-B fuse block. Replace only with a fuse of the same type and rating.

Ensure that a plastic safety cover is installed on the alarm fuse.

8. Close the distribution cabinet’s front door. Turn the latch clockwise to secure the door.

Figure 5.5 Replacing a TPL-B Fuse

41

Replacing a GJ/218 Circuit Breaker

Procedure

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

NOTE!

Refer to Figure 5.6 as this procedure is performed.

1. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position.

2. Operate the defective circuit breaker to the OFF position.

DANGER! The bolts being removed in the following step may be at system potential. Use insulated tools.

3. Remove the hardware securing the circuit breaker to the distribution panel and partially remove the circuit breaker.

4. Record each alarm wire located on the back of the circuit breaker (color and location on circuit breaker). Wiring diagrams are

provided in Figure 5.6. Carefully disconnect the alarm wiring from the back of the circuit breaker, ensuring the exposed end
does not contact any energized circuit.

5. Shunted Breakers Only: Record each shunt wire located on the back of the circuit breaker (color and location on circuit

breaker). Wiring diagrams are provided in

Figure 5.6. Carefully disconnect the shunt wiring from the back of the circuit

breaker, ensuring the exposed end does not contact any energized circuit.

6. Ensure that the replacement circuit breaker is in the OFF position, and is of the correct rating and type (electrical

trip/mechanical trip or electrical trip only). Orient the circuit breaker over its mounting location. Re-attach the alarm wiring
and shunt wiring (if applicable) to the back of the circuit breaker as recorded above. Wiring diagrams are provided in Figure

5.6.

DANGER! The bolts being installed in the following step may be at system potential. Use insulated tools.

7. Install the replacement circuit breaker into its mounting position and secure with the hardware previously removed. Torque

to 60 in-lbs.

8. Transfer the circuit breaker guard from the old circuit breaker to the new circuit breaker.

9. Operate the replacement circuit breaker to the ON position.

10. Verify no Circuit Breaker Alarms are active.

11. Close the distribution cabinet’s front door. Turn the latch clockwise to secure the door.

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42

1/4" Hardened
Flat Washer
1/4" Belleville
Lock Washer
1/4-20 x 3/4” Bolt
(2 places)
Torque to 60 in-lbs.

OFF

ON

Apply anti-oxidizing compound to busbar mating
surfaces before mounting circuit breakers.

INSTALLING CIRCUIT BREAKER

Alarm jumper connector.

Holes to route shunt jumper through (if applicable).

ALARM WIRING (BREAKERS W/OUT SHUNTS)

ALARM WIRING (BREAKERS WITH SHUNTS)

Standard and

Electrical

Trip Breaker

Shunted Breaker Jumper: Red

Alarm Jumper: Brown

Alarm Jumper: Brown

Alarm Jumper: Red

Alarm Jumper: Red

Shunted Breaker Jumper: Black

INSTALLING CIRCUIT BREAKER GUARD

ON

OFF

LONGER SIDE OF GUARD

10-32 X 7/16 PH

10-32 LW

CIRCUIT BREAKER GUARD LABEL

CIRCUIT BREAKER GUARD

TYPICAL DIST ASSY
SHOWN FOR EXAMPLE

Figure 5.6 Replacing a GJ/218 Circuit Breaker (1-Pole) (Lists AC, AD, BC, BD) (cont’d on next page)

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43

ALARM WIRING (BREAKERS W/OUT SHUNTS)

ALARM WIRING (BREAKERS WITH SHUNTS)

Standard and

Electrical

Trip Breaker

Shunted Breaker Jumper: Red

Alarm Jumper: Brown

Alarm Jumper: Brown

Alarm Jumper: Red

Alarm Jumper: Red

Shunted Breaker Jumper: Black

INSTALLING CIRCUIT BREAKER GUARD

ON

OFF

LONGER SIDE OF GUARD

10-32 X 7/16 PH

10-32 LW

CIRCUIT BREAKER GUARD LABEL

CIRCUIT BREAKER GUARD

TYPICAL DIST ASSY
SHOWN FOR EXAMPLE

1/4" Hardened
Flat Washer
1/4" Belleville
Lock Washer
1/4-20 x 3/4” Bolt
(4 places / 2-pole brk,
6 places / 3-pole brk,
8 places / 4-pole brk)
Torque to 60 in-lbs.

Apply anti-oxidizing compound to busbar mating
surfaces before mounting circuit breakers.

OFF

ON

INSTALLING CIRCUIT BREAKER

Alarm jumper connectors.

Holes to route shunt jumper through (if applicable).

Busbar

2-pole breaker shown.
3-pole and 4-pole breakers similar.

Figure 5.6 Replacing a GJ/218 Circuit Breaker (2-Pole, 3-Pole, 4-Pole) (Lists AC, AD, BC, BD) (cont’d from previous page, cont’d

on next page)

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44

ALARM WIRING (BREAKERS W/OUT SHUNTS)

ALARM WIRING (BREAKERS WITH SHUNTS)

Standard and

Electrical

Trip Breaker

Shunted Breaker Jumper: Red

Alarm Jumper: Brown

Alarm Jumper: Brown

Alarm Jumper: Red

Alarm Jumper: Red

Shunted Breaker Jumper: Black

INSTALLING CIRCUIT BREAKER GUARD

ON

OFF

LONGER SIDE OF GUARD

10-32 X 7/16 PH

10-32 LW

CIRCUIT BREAKER GUARD LABEL

CIRCUIT BREAKER GUARD

TYPICAL DIST ASSY
SHOWN FOR EXAMPLE

INSTALLING CIRCUIT BREAKER

Apply anti-oxidizing compound to busbar mating
surfaces before mounting circuit breakers.

1/4" Hardened Flat Washer
1/4" Belleville Lock Washer
1/4-20 x 3/4” Bolt
(2 places) Torque to 60 in-lbs.

OFF

ON

OFF

ON

Alarm jumper connector.

1/4" Hardened Flat Washer
1/4" Belleville Lock Washer
1/4-20 x 3/4” Bolt
(4 places / 2-pole breaker,
6 places / 3-pole breaker,
8 places / 4-pole breaker)
Torque to 60 in-lbs.

Shorting
Busbar

For a 3-pole
and 4-pole
breaker, install
shorting busbars
top and bottom.
(4-pole shorting busbars
shown, 3-pole similar)

2-pole breaker shown.
3-pole and 4-pole breakers similar.

Return Busbar
(not included
with List AP)

Figure 5.6 Replacing a GJ/218 Circuit Breaker (1-Pole, 2-Pole, 3-Pole, 4-Pole) (List AM and List AP) (cont’d from previous page)

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45

5.6.4 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)

DANGER! Performing the next steps exposes service personnel to battery potential. Exercise extreme caution not to

inadvertently contact or have any tool inadvertently contact any energized electrical termination.

Procedure

NOTE!

NOTE!

Removing the Distribution Panel

1. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position.

2. Remove the plastic shield covering the circuit breakers or fuseholders on the panel to be removed by loosening the screws

3. Disconnect all load or battery wiring from the circuit breaker or fuse positions.

4. On panels equipped with a ground busbar, remove all load return or battery return wiring from the ground busbar.

5. On panels equipped with shunts, label the shunt leads then remove them from the panel.

6. Locate the in-line FA/CBA connector located near the back of the panel, and separate the connector halves.

7. Refer to Figure 5.7 and remove the hardware securing the panel’s Ground Busbar (if equipped) to the distribution cabinet’s

8. For load distribution panels, refer to Figure 5.7 and remove the hardware securing the panel’s System Load Distribution

List AC shown in illustration, other Lists similar.

Refer to Figure 5.7 as this procedure is performed.

holding the shield and sliding the shield upwards.

busbar.

busbar to the distribution cabinet’s busbar.

9. For battery distribution panels, refer to Figure 5.7 and remove the hardware securing the panel’s Battery Busbar to the

distribution cabinet’s busbar.

10. For dual voltage load distribution panels, refer to Figure 5.7 and remove the hardware securing the -48V jumper leads.

11. Refer to Figure 5.7 and remove the hardware securing the distribution panel to the distribution cabinet. Remove the panel

from the distribution cabinet.

Installing the Distribution Panel

NOTE!

1. Orient the replacement distribution panel into distribution cabinet, checking to ensure no wires are pinched. Replace the

2. For dual voltage load distribution panels, replace the hardware securing the -48V jumper leads (1/4-20 bolt, 1/4” lock

3. For battery distribution panels, replace the hardware securing the panel’s Battery Busbar to the distribution cabinet’s

In the following procedure, before making busbar-to-busbar connections, apply a thin coating of electrical anti-

oxidizing compound to the mating surfaces of the busbars.

hardware securing the distribution panel to the distribution cabinet (10-32 x 5/8” bolt, #10 flat washer, 4-places).

washer, 1/4” flat washer. Torque to 84 in-lbs).

busbar (3/8-16 x 1-1/4” bolt, 3/8” Belleville lock washer, 3/8” hardened flat washer, 2-places. Torque to 180 in-lbs.)

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46

4. For load distribution panels, replace the hardware securing the panel’s System Load Distribution busbar to the distribution

cabinet’s busbar (1/4-20 x 1” bolt, 1/4” Belleville lock washer, 1/4” Belleville lock washer (concave side of Belleville lock washers
face each other), 1/4” hardened flat washer, 2-places. Torque to 60 in-lbs).

5. Replace the hardware securing the panel’s Ground Busbar (if equipped) to the distribution cabinet’s busbar (1/4-20 x 1” bolt,

1/4” Belleville lock washer, 1/4” Belleville lock washer (concave side of Belleville lock washers face each other), 1/4” hardened
flat washer, 2-places. Torque to 60 in-lbs).

6. Locate the in-line FA/CBA connector located near the back of the panel, and plug it into the mating connector half in the

distribution cabinet.

7. On panels equipped with shunts, reconnect the shunt leads.

WARNING! In the next step, observe correct polarity; otherwise equipment damage will result.

8. On panels equipped with a ground busbar, reconnect the load return or battery return wiring to the ground busbar.

9. Reconnect the load or battery wiring to the circuit breaker or fuse positions.

10. Transfer the plug-in circuit breakers or fuses from the old panel to the replacement panel.

11. Replace the plastic shield covering the circuit breakers or fuseholders on the replacement panel.

12. Verify no Circuit Breaker/Fuse Alarms are active.

13. Close the distribution cabinet’s front door. Turn the latch clockwise to secure the door.

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47

Front Front

Battery

Distribution

Panel

Load

Distribution

Panel

Ground Busbar

Hardware

Ground Busbar

Hardware

Battery Busbar
Hardware

Distribution Panel
Hardware

System Load
Distribution Busbar
Hardware

Distribution Panel

Hardware

Shorting Block if 4th shelf

has Converter O ption.

If more than three shelves with the

Converter Option, /–48/ jumpers.

Assembly order is: lug, 1/4" flat washer, 1/4" lock washer,

1/4-20 nut. Torque to 84 in-lbs. Note that a shorting block

will be factory installed in this distribution device position.

/–48/ jumpers.
Assembly order is: lug, 1/4" flat washer,
1/4" lock washer, 1/4-20 bolt.
Torque to 84 in-lbs.

List DA Dual Voltage

Distribution Panel

(Lists DB, DC, and DD similar.)

Components removed in
illustrations for clarity only.

List AC Shown,
Other Lists Similar

Figure 5.7 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)

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48

5.6.5 Replacing a Distribution Panel (List AL, AN, DE, DF, DG, DH, DJ, and DK)

DANGER! Performing the next steps exposes service personnel to battery potential. Exercise extreme caution not to

inadvertently contact or have any tool inadvertently contact any energized electrical termination.

Procedure

NOTE!

Removing the Distribution Panel

1. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position.

2. Remove the plastic shield covering the circuit breakers or fuseholders on the panel to be removed by loosening the screws

3. Disconnect all load wiring from the circuit breaker or fuse positions.

4. Remove all load return wiring from the ground busbar (if present).

5. Locate the in-line FA/CBA connector located near the back of the panel, and separate the connector halves.

6. Refer to Figure 5.8 and remove the hardware securing the panel’s ground busbar (if present) to the distribution cabinet’s

7. Refer to Figure 5.8 and remove the hardware securing the panel’s system load distribution busbar to the distribution cabinet’s

8. For dual voltage load distribution panels, refer to Figure 5.8 and remove the hardware securing the -48V jumper leads.

9. Refer to Figure 5.8 and remove the hardware securing the distribution panel to the distribution cabinet. Remove the panel

Refer to Figure 5.8 as this procedure is performed.

holding the shield and sliding the shield upwards.

busbar.

busbar.

from the distribution cabinet.

Installing the Distribution Panel

NOTE!

1. Orient the replacement distribution panel into distribution cabinet, checking to ensure no wires are pinched. Replace the

2. For dual voltage load distribution panels, replace the hardware securing the -48V jumper leads. Torque per Figure 5.8.

3. Replace the hardware securing the panel’s system load distribution busbar to the distribution cabinet’s busbar. Torque per

4. Replace the hardware securing the panel’s ground busbar (if present) to the distribution cabinet’s busbar. Torque per Figure

5. Locate the in-line FA/CBA connector located near the back of the panel, and plug it into the mating connector half in the

6. On panels equipped with shunts, reconnect the shunt leads.

WARNING! In the next step, observe correct polarity; otherwise equipment damage will result.

In the following procedure, before making busbar-to-busbar connections, apply a thin coating of electrical anti-

oxidizing compound to the mating surfaces of the busbars.

hardware securing the distribution panel to the distribution cabinet. Torque per Figure 5.8.

Figure 5.8.

5.8.

distribution cabinet.

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

49

7. Reconnect the load return wiring to the ground busbar (if present).

8. Reconnect the load wiring to the circuit breaker or fuse positions.

9. Transfer the plug-in circuit breakers or fuses from the old panel to the replacement panel.

10. Replace the plastic shield covering the circuit breakers or fuseholders on the replacement panel.

11. Verify no circuit breaker/fuse alarms are active.

12. Close the distribution cabinet’s front door. Turn the latch clockwise to secure the door.

50

Components removed
in illustration for clarity only.

In-Line
FA/CBA
Connector

Ground Busbar
Hardware

Distribution Panel
Hardware

Distribution Panel
Hardware

System Load
Distribution Busbar
Hardware

1/4-20 x 1” Bolt
1/4” Belleville Lock Washer
1/4” Flat Washer
Torque to 60 in-lbs.

10-32 x 5/8” Screw
#10 Flat Washer
Torque to 31 in-lbs.

1/4-20 x 1” Bolt
1/4” Belleville Lock Washer
1/4” Flat Washer
Torque to 60 in-lbs.

10-32 x 5/8” Screw
#10 Flat Washer
Torque to 31 in-lbs.

Front

Front

List DG
(Lists DE , DF,
DH, DJ, and DK similar.)

Rear

Connect “-48V” jumpers to an available landing here.
Assembly order is: lug, 1/4" flat washer,
1/4" lock washer, 1/4-20 x 3/4” bolt.
Torque to 84 in-lbs.

Lugs can be landed
back-to-back.

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

Figure 5.8 Replacing a Distribution Panel (List AL, AN, DE, DF, DG, DH, DJ, and DK)

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51

5.6.6 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

DANGER! Performing the next steps exposes service personnel to battery potential. Exercise extreme caution not to

inadvertently contact or have any tool inadvertently contact any energized electrical termination.

Procedure

Removing the Existing Distribution Panel

NOTE!

1. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position.

2. Remove the plastic shield covering the circuit breakers or fuseholders on the panel to be removed by loosening the screws

3. Disconnect all load or battery wiring from the circuit breaker or fuse positions.

4. On panels equipped with a ground busbar, remove all load return or battery return wiring from the ground busbar.

5. On panels equipped with shunts, label the shunt leads then remove them from the panel.

6. Locate the in-line FA/CBA connector located near the back of the panel, and separate the connector halves.

7. Refer to Figure 5.9 and remove the hardware securing the panel’s Ground Busbar (if equipped) to the distribution cabinet’s

8. For load distribution panels, refer to Figure 5.9 and remove the hardware securing the panel’s System Load Distribution

9. For battery distribution panels, refer to Figure 5.9 and remove the hardware securing the panel’s Battery Busbar to the

10. For dual voltage load distribution panels, refer to Figure 5.9 and remove the hardware securing the -48V jumper leads.

Refer to Figure 5.9.

holding the shield and sliding the shield upwards.

busbar.

busbar to the distribution cabinet’s busbar.

distribution cabinet’s busbar.

11. Refer to Figure 5.9 and remove the hardware securing the distribution panel to the distribution cabinet. Remove the panel

from the distribution cabinet.

Replacing the Busbar

NOTE!

NOTE!

1. Perform the procedure in Figure 5.10.

Refer to Figure 5.10.

In the following procedure, before making busbar-to-busbar connections, apply a thin coating of electrical anti-

oxidizing compound to the mating surfaces of the busbars.

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52

Installing the New Distribution Panel

NOTE!

Refer to Figure 5.11.

NOTE!

In the following procedure, before making busbar-to-busbar connections, apply a thin coating of electrical anti-

oxidizing compound to the mating surfaces of the busbars.

1. Remove the plastic shield covering the circuit breakers or fuseholders on the replacement panel by loosening the screws

holding the shield and sliding the shield upwards.

2. For dual voltage load distribution panels, orient the replacement distribution panel into distribution cabinet. Secure the -

48V jumper leads to the rear of the panel as shown in

Figure 5.11. Torque per Figure 5.11.

3. Secure the replacement distribution panel to the distribution cabinet, ensuring no wires are pinched. Torque per Figure 5.11.

4. Replace the hardware securing the panel’s System Load Distribution busbar to the distribution cabinet’s busbar. Torque per

Figure 5.11.

5. Replace the hardware securing the panel’s Ground Busbar to the distribution cabinet’s busbar. Torque per Figure 5.11.

6. Locate the in-line FA/CBA connector located near the back of the panel, and plug it into the mating connector half in the

distribution cabinet.

WARNING! In the next step, observe correct polarity; otherwise equipment damage will result.

7. Refer to IM581127000 and connect load leads to the replacement panel.

8. Ensure appropriately sized circuit breakers or fuses are installed in the replacement panel.

9. Replace the plastic shield covering the circuit breakers or fuseholders on the replacement panel.

10. Verify no Circuit Breaker/Fuse Alarms are active.

11. Close the distribution cabinet’s front door. Turn the latch clockwise to secure the door.

53

Figure 5.9 Removing the Existing Distribution Panel

Components removed in illustration for clarity only.

Front

List DB Dual Voltage
Distribution Panel
(other distribution
panels similiar)

Ground Busbar
Hardware

In-Line
FA/CBA
Connector

Distribution Panel
Hardware

Distribution Panel
Hardware

System Load
Distribution Busbar
Hardware

Front

Front

List DB Dual Voltage
Distribution Panel
(other distribution
panels similiar)

-48V Jumpers

Battery Busbar
Hardware (Battery
Distribution Panel)

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54

Apply electrical anti-oxidizing
compound to busbar mating surfaces.

4-row distribution cabinet shown.

1, 2, or 3-row cabinet similar.

1. Remove this busbar.

Existing busbar.

New busbar.

2. Replace with new busbar.
See SAG581127000 for part
number.

3. New busbar installed view.

3/8-16 x 1-1/4” Bolt
3/8" Belleville Lock Washer
3/8" Belleville Lock Washer
(concave side of Belleville
Lock Washers face each other)
3/8" Hardened Flat Washer
(2 places)
Torque to 180 in-lbs.

Figure 5.10 Replacing the Busbar

55

Components removed
in illustration for clarity only.

In-Line
FA/CBA
Connector

Ground Busbar
Hardware

Distribution Panel
Hardware

Distribution Panel
Hardware

System Load
Distribution Busbar
Hardware

1/4-20 x 1” Bolt
1/4” Belleville Lock Washer
1/4” Flat Washer
Torque to 60 in-lbs.

10-32 x 5/8” Screw
#10 Flat Washer
Torque to 31 in-lbs.

1/4-20 x 1” Bolt
1/4” Belleville Lock Washer
1/4” Flat Washer
Torque to 60 in-lbs.

10-32 x 5/8” Screw
#10 Flat Washer
Torque to 31 in-lbs.

Front

Front

List DG
(Lists DE , DF,
DH, DJ, and DK similar.)

Rear

Connect “-48V” jumpers to an available landing here.
Assembly order is: lug, 1/4" flat washer,
1/4" lock washer, 1/4-20 x 3/4” bolt.
Torque to 84 in-lbs.

Lugs can be landed
back-to-back.

Figure 5.11 Installing the New Distribution Panel

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56

5.6.7 Circuit Card Replacement Procedures

WARNING! Circuit cards used in this power system contain static-sensitive devices. Read the Static Warning at the front of

this document before performing any of the following procedures.

General

The following circuit card replacement procedures can be performed with the system operating.

Refer to Figure 3.1 for circuit card locations.

CAUTION! When performing any step in these procedures that requires removal or installation of hardware, use caution to

ensure no hardware is dropped and left inside the cabinet; otherwise service interruption or equipment damage may occur.

NOTE!

When performing any step in these procedures that requires removal of existing hardware, retain all hardware for use

in subsequent steps.

System Interface Circuit Card Replacement

Procedure

1. Performing this procedure may activate external alarms. Do one of the following. If possible, disable these alarms. If these

alarms cannot be easily disabled, notify the appropriate personnel to disregard any future alarms associated with this system
while the procedure is being performed.

DANGER! Performing the next steps exposes service personnel to battery potential. Exercise extreme caution not to

inadvertently contact or have any tool inadvertently contact any energized electrical termination.

2. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position.

WARNING! Damage to the circuit card may result if the next step is not followed.

3. Connect an approved grounding strap to your wrist. Attach the other end to a suitable ground.

4. Remove the top and front panels to access the circuit cards at the bottom of the distribution cabinet.

5. Carefully label any wires connected to the customer connection terminal block on the circuit card. These wires must be

connected to the same terminals on the replacement circuit card. Refer to Figure 5.12.

6. Carefully label the connectors plugged into the circuit card. These connectors must be plugged into the same connectors on

the replacement circuit card. Refer to Figure 5.12.

DANGER! In the next step, external wiring may be energized from an external source. DO NOT allow bare wire ends to

contact any grounded or energized object.

7. Remove the external wiring from the customer connection terminal block. DO NOT allow the bare wire end to contact any

grounded or energized object. Isolate the wire end with electrical tape. Repeat for each wire to be removed.

8. Unplug all connectors plugged into the circuit card.

9. Remove the screws securing the circuit card and remove the circuit card from the distribution cabinet.

10. In this step, ensure you do not intermix the old and replacement circuit cards. Set the shorting jumpers on the replacement

circuit card to match the locations on the old circuit card. Jumper settings are documented in the “Setting Jumpers and
Switch Options” section of the Power System Installation Instructions (IM581127000).

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57

11. Slide the replacement circuit card into the mounting position inside the distribution cabinet, and secure with the screws

removed from the old circuit card.

12. Plug all connectors removed from the old circuit card into the same position on the replacement circuit card.

DANGER! In the next step, external alarm wiring may be energized from an external source. DO NOT allow bare wire ends to

contact any grounded or energized object.

13. Reconnect the external wiring to the correct terminals on the customer connection terminal block. First remove the electrical

tape that was applied to the bare wire end in a previous step. DO NOT allow the bare wire end to contact any grounded or
energized object. After securing the wire, gently tug on the wire to ensure that it cannot be pulled out of the terminal block.
Repeat for each wire to be reconnected.

14. Remove the grounding wrist strap.

15. Reinstall the top and front panels that cover the circuit cards at the bottom of the distribution cabinet.

16. Close the distribution cabinet’s front door. Turn the latch clockwise to secure the door.

17. Enable the external alarms, or notify appropriate personnel that this procedure is finished.

18. Ensure that there are no local or remote alarms active on the system.

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58

J1, J2, J3, J4
Distribution Panels FA Inputs

J8
Selects to power Controller
from “Battery Power” or not.

Shorting Jumper

No

Battery

Pwr

Battery
Pwr

External Internal

J8

J10

1
2
3

7
8
9

3 2 1

J10
Battery Monitoring External / Internal
(see TB1-4 and TB1-5 for
external monitoring points)

J5
CAN

TP3 (+) and TP4 (-)
System Load
Shunt Monitoring

TP1 (+) and TP2 (-)
System Voltage
Monitoring

TB1-1: Battery Tray FA

TB1-2: External Battery FA

TB1-3: External System FA

TB1-4: External Battery Monitoring (-)

TB1-5: External Battery Monitoring (+)

1

1A 2A 3A

1B 2B 3B

5

RS485 Connection
TB2 1A: RS485+
TB2 2A: RS485-

RS232 Connection
TB2 1B: CGND
TB2 2B: TXD232
TB2 3B:RXD232

Shorting Jumper

J1

J2

J3

J4

J8

TB2

TB1

TP1 TP2 TP3 TP4

J10

J5

TB1
Wire Size Capacity: 22-12 AWG.
Recommended Torque: 3.0 in-lbs.
FA Signals: Battery applied to the terminal
turns in an alarm.

Figure 5.12 System Interface Circuit Card Connector Locations

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59

IB2 (Controller Interface Board) and Optional EIB (Controller Extended Interface Board) Replacement

Procedure

1. Performing this procedure may activate external alarms. Do one of the following. If possible, disable these alarms. If these

alarms cannot be easily disabled, notify the appropriate personnel to disregard any future alarms associated with this system
while the procedure is being performed.

DANGER! Performing the next steps exposes service personnel to battery potential. Exercise extreme caution not to

inadvertently contact or have any tool inadvertently contact any energized electrical termination.

2. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position.

WARNING! Damage to the circuit card may result if the next step is not followed.

3. Connect an approved grounding strap to your wrist. Attach the other end to a suitable ground.

4. Carefully label the wires connected to the customer connection terminal blocks on the circuit card. These wires must be

connected to the same terminals on the replacement circuit card. Refer to Figure 5.13 or Figure 5.14.

5. Carefully label the connectors plugged into the circuit card. These connectors must be plugged into the same connectors on

the replacement circuit card. Refer to Figure 5.13 or Figure 5.14.

DANGER! In the next step, external alarm wiring may be energized from an external source. DO NOT allow bare wire ends to

contact any grounded or energized object.

6. Remove the external wiring from the customer connection terminal blocks. DO NOT allow the bare wire end to contact any

grounded or energized object. Isolate the wire end with electrical tape. Repeat for each wire to be removed.

7. Unplug all connectors plugged into the circuit card.

8. Remove the circuit card by removing the bracket the circuit card is mounted to. Remove the circuit card from the bracket.

9. In this step, ensure you do not intermix the old and replacement circuit cards. Set the switch on the replacement circuit card

to the same setting as the old circuit card. Switch settings are documented in the “Setting Jumpers and Switch Options”
section of the Power System Installation Instructions (IM581127000).

10. Secure the replacement circuit card to the bracket, and re-install the circuit card and bracket into the distribution cabinet.

11. Plug all connectors removed from the old circuit card into the same position on the replacement circuit card.

DANGER! In the next step, external alarm wiring may be energized from an external source. DO NOT allow bare wire ends to

contact any grounded or energized object.

12. Reconnect the external wiring to the correct terminals on the customer connection terminal block. First remove the electrical

tape that was applied to the bare wire end in a previous step. DO NOT allow the bare wire end to contact any grounded or
energized object. After securing the wire, gently tug on the wire to ensure that it cannot be pulled out of the terminal block.
Repeat for each wire to be reconnected.

13. Remove the grounding wrist strap.

14. Close the distribution cabinet’s front door. Turn the latch clockwise to secure the door.

15. Enable the external alarms, or notify appropriate personnel that this procedure is finished.

16. Ensure that there are no local or remote alarms active on the system.

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60

J3-J9:
Wire Size Capacity: 16-26 AWG.
Recommended Torque: 2.2 in-lbs.

-

J12

*

RELAY

J1

SW1

7

J2

J11

J10

5 3

1

Relay Output Terminal Blocks

Digital Input Terminal Blocks

J9 J8 J7

J6

J5 J4

J3

8

6 4

2

8 7 6 5 4 3

2 1

+

IB2 Board (Top View)

NO

C

NC

NO C NC

NO

C

NC

NO C NC

NO

C

NC

NO C NC

NO

C

NC

NO C NC

5 3 1

46 2

5 3 1

46 2

5

3

1

46 2

5

3

1

46 2

5

3

1

46 2

5 3 1

46 2

5

3

1

46 2

Connector

to Controller

EX TEMP

PROBRE 1

EX TEMP

PROBE 2

IB2 Board Assembly

Figure 5.13 IB2 (Controller Interface Board) Connector Locations

61

Figure 5.14 EIB (Controller Extended Interface Board) Connector Locations

Optional EIB Interface Board

(

T

op V

iew)

Optional EIB

Interface Board Assembly

SW1

J3 J4J2

J9J8J7J6J5

J5-J9
Wire Size Capacity: 16-26 AWG.
Recommended Torque: 2.2 in-lbs.

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62

SM-DU+ and Shunt Interface Assembly Replacement

Procedure

1. Performing this procedure may activate external alarms. Do one of the following. If possible, disable these alarms. If these

alarms cannot be easily disabled, notify the appropriate personnel to disregard any future alarms associated with this system
while the procedure is being performed.

DANGER! Performing the next steps exposes service personnel to battery potential. Exercise extreme caution not to

inadvertently contact or have any tool inadvertently contact any energized electrical termination.

2. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position.

WARNING! Damage to the circuit card may result if the next step is not followed.

3. Connect an approved grounding strap to your wrist. Attach the other end to a suitable ground.

4. Carefully label the wires connected to the shunt input terminal blocks on circuit card. These wires must be connected to the

same terminals on the replacement circuit card. Refer to Figure 5.15.

5. Carefully label the connectors plugged into the circuit card. These connectors must be plugged into the same connectors on

the replacement circuit card. Refer to Figure 5.15.

DANGER! In the next step, external alarm wiring may be energized from an external source. DO NOT allow bare wire ends to

contact any grounded or energized object.

6. Remove the external wiring from the shunt input terminal blocks. DO NOT allow the bare wire end to contact any grounded

or energized object. Isolate the wire end with electrical tape. Repeat for each wire to be removed.

7. Unplug all connectors plugged into the circuit card.

8. Remove the screw securing the SM-DU+ and Shunt Interface Assembly to the bottom of the distribution cabinet, and remove

the assembly.

9. SM-DU+: In this step, ensure you do not intermix the old and replacement circuit cards. Set the switches on the

replacement circuit card to the same settings as the old circuit card. Switch settings are documented in the “Setting
Jumpers and Switch Options” section of the Power System Installation Instructions (IM581127000).

10. Slide the replacement SM-DU+ and Shunt Interface Assembly into the mounting position inside the distribution cabinet, and

secure with the screw removed from the old assembly.

11. Plug all connectors removed from the old circuit card into the same position on the replacement circuit card.

DANGER! In the next step, external alarm wiring may be energized from an external source. DO NOT allow bare wire ends to

contact any grounded or energized object.

12. Reconnect the external wiring to the correct terminals on the shunt input terminal blocks. First remove the electrical tape

that was applied to the bare wire end in a previous step. DO NOT allow the bare wire end to contact any grounded or
energized object. After securing the wire, gently tug on the wire to ensure that it cannot be pulled out of the terminal block.
Repeat for each wire to be reconnected.

13. Remove the grounding wrist strap.

14. Close the distribution cabinet’s front door. Turn the latch clockwise to secure the door.

15. Enable the external alarms, or notify appropriate personnel that this procedure is finished.

63

Figure 5.15 SM-DU+ and Shunt Interface Assembly Connector Locations

TB1 - TB2
Wire Size Capacity: 16-26 AWG.
Recommended Torque: 2.2 in-lbs.

SM-DU+ and

Shunt Interface Board

pow er can

RS48 5

RS48 5

SHUNT SHUNT FUSE

RS 232

SW1 SW2

J1

J7 J8 J6

J3 J4 J4A

J5

ON

OFF

1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8

Red Indicator

Yellow Indicator

Green Indicator

Shunt Interface BoardSM-DU+

1A

1B

TB

1 TB2

J2J1

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

16. Ensure that there are no local or remote alarms active on the system.

Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

64

Optional LVD Driver and LVD Driver Lite Circuit Card Replacement

Procedure

1. Performing this procedure may activate external alarms. Do one of the following. If possible, disable these alarms. If these

alarms cannot be easily disabled, notify the appropriate personnel to disregard any future alarms associated with this system
while the procedure is being performed.

DANGER! Performing the next steps exposes service personnel to battery potential. Exercise extreme caution not to

inadvertently contact or have any tool inadvertently contact any energized electrical termination.

2. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position.

WARNING! Damage to the circuit card may result if the next step is not followed.

3. Connect an approved grounding strap to your wrist. Attach the other end to a suitable ground.

4. If any of the low voltage disconnect contactors is open and it is desired to be closed, push the LVD Inhibit Switch located on

the circuit card to the UP position momentarily and then leave the switch in the middle (OFF) position.

5. Remove the top and front panels to access the circuit cards at the bottom of the distribution cabinet.

6. Carefully label the connectors plugged into the circuit card. These connectors must be plugged into the same connectors on

the replacement circuit card. Refer to Figure 5.16 or Figure 5.17.

7. Unplug all connectors plugged into the circuit card.

8. Remove the screws securing the circuit card and remove the circuit card from the distribution cabinet.

9. Slide the replacement circuit card into the mounting position inside the distribution cabinet, and secure with the screws

removed from the old circuit card.

10. Ensure that the LVD Inhibit Switch is in the middle (OFF) position.

11. Plug all connectors removed from the old circuit card into the same position on the replacement circuit card.

12. Push the LVD Inhibit Switch to the down (ON) position.

13. Remove the grounding wrist strap.

14. Reinstall the top and front panels that cover the circuit cards at the bottom of the distribution cabinet.

15. Close the distribution cabinet’s front door. Turn the latch clockwise to secure the door.

16. Enable the external alarms, or notify appropriate personnel that this procedure is finished.

17. Ensure that there are no local or remote alarms active on the system.

65

Figure 5.16 Optional LVD Driver Circuit Card Connector Locations

J1, J2, J3
To LVLD contactor, uses Controller
LVD1 control setting (Level 1).

J4, J5, J6
To LVLD contactor, uses Controller
LVD2 control setting (Level 2).

J7
To LVBD contactor, uses Controller
LVD2 control setting (Level 2).

Notes:

1. Connects up to (4) LVLD
and (1) LVBD contactors.

J6

J5

J4

J3 J2 J1

J7

S1

DO NOT change a Low Voltage
Load Disconnect contactor to
LVD Control Level 2 (LVD2) if
the system is furnished with a
Low Voltage Battery Disconnect
contactor.

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66

Figure 5.17 Optional LVD Driver Lite Circuit Card Connector Locations

DO NO

T

change a Low Voltage
Load Disconnect contactor to
LVD Control Level 2 (LVD2) if
the system is furnished with a
Low V

oltage Battery Disconnect

contactor.

J1
To LVLD contactor

, uses Controller

LVD1 control setting (Level 1).

J3
To LVLD contactor, uses Controller
LVD2 control setting (Level 2).

J2
To LVBD contactor

, uses Controller
LVD2 control setting (Level 2).
Can only be used if it is contained
in a List 21 (1-row) cabinet.

Notes:

1. Connects up to (2) LVD
contactors rated at 600 A or less.

2. Only one (1) contactor per level
can be accommodated. J2 and J3
are on Level 2, only one (1) of these
connectors can be used at a time.

J2

J3

J1

S1

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67

Optional Manual Battery Disconnect Circuit Card Replacement

Procedure

1. Performing this procedure may activate external alarms. Do one of the following. If possible, disable these alarms. If these

alarms cannot be easily disabled, notify the appropriate personnel to disregard any future alarms associated with this system
while the procedure is being performed.

DANGER! Performing the next steps exposes service personnel to battery potential. Exercise extreme caution not to

inadvertently contact or have any tool inadvertently contact any energized electrical termination.

2. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position.

WARNING! Damage to the circuit card may result if the next step is not followed.

3. Connect an approved grounding strap to your wrist. Attach the other end to a suitable ground.

4. Remove the top and front panels to access the circuit cards at the bottom of the distribution cabinet.

5. Carefully label the connectors plugged into the circuit card. These connectors must be plugged into the same connectors on

the replacement circuit card. Refer to Figure 5.18.

6. Unplug all connectors plugged into the circuit card.

7. Remove the screws securing the circuit card and remove the circuit card from the distribution cabinet.

8. Place the replacement circuit card into the mounting position inside the distribution cabinet, and secure with the screws

removed from the old circuit card.

9. Plug all connectors removed from the old circuit card into the same position on the replacement circuit card.

10. Remove the grounding wrist strap.

11. Reinstall the top and front panels that cover the circuit cards at the bottom of the distribution cabinet.

12. Close the distribution cabinet’s front door. Turn the latch clockwise to secure the door.

13. Enable the external alarms, or notify appropriate personnel that this procedure is finished.

14. Ensure that there are no local or remote alarms active on the system.

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J1

J2

S1

Figure 5.18 Optional Manual Battery Disconnect Circuit Card Connector Locations

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5.6.8 Replacing a Battery or Load Disconnect Contactor

DANGER! All sources of AC and DC power must be completely disconnected from this power system before performing this

procedure. Use a voltmeter to verify no DC voltage is present on the system busbars before proceeding.

NOTE!

In the following procedure, before making busbar-to-busbar connections, apply a thin coating of electrical anti-

oxidizing compound to the mating surfaces of the busbars.

Procedure

NOTE!

Refer to Figure 5.19, Figure 5.20, Figure 5.21, or Figure 5.22 as this procedure is performed.

Removing the Contactor

1. Verify all AC and DC power sources are disconnected from the power system.

2. For the 1-row distribution cabinet, the contactor can be accessed from the top of the distribution cabinet. For the 2, 3, or 4-

row distribution cabinet, the contactor can be accessed from the rear (and top) of the distribution cabinet.

3. For the 2, 3, or 4-row distribution cabinet, remove the distribution cabinet’s rear access panel(s).

4. Disconnect the wiring to the contactor by unplugging the quick disconnects.

5. Note the orientation of the contactor to ensure the replacement is installed the same way. Unbolt the contactor (4-places)

and remove. Save all hardware.

Installing the Replacement Contactor

6. Position the replacement contactor oriented the same way as the old.

7. Secure the contactor with the hardware removed above. Refer to Figure 5.19, Figure 5.20, Figure 5.21, or Figure 5.22 for

hardware build-up and recommended torque.

8. Replace the wiring to the contactor by plugging-in the quick disconnects. Refer to Figure 5.19, Figure 5.20, Figure 5.21, or

Figure 5.22.

9. For the 2, 3, or 4-row distribution cabinet, replace the distribution cabinet’s rear access panel(s).

Restarting the Power System

10. Reconnect the AC and DC power sources to the power system.

11. Start the power system. Refer to the separate Installation Instructions (IM581127000) for a startup procedure.

12. Verify no alarms are active.

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Battery
Disconnect
Contactor

Apply electrical anti-oxidizing

compound to busbar mating surfaces.

Components removed in
illustration for clarity only.

Contactor styles vary
between manufacturer’s.

Front

5/16-18 x 1” Bolt
5/16" Belleville Lock Washer
5/16" Belleville Lock Washer

(concave side of Belleville

Lock Washers face each other)

5/16" Hardened Flat Washer

(4 places)

Torque to 100 in-lbs.

White/Black Wire

Brown Wire

Brow n/W hite Wire

Red/White Wire

Brown Wire

Brow n/W hite Wire

White/Black Wire

Red/White Wire

Figure 5.19 Replacing a Battery Disconnect Contactor in a 1-Row Distribution Cabinet

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71

Battery
Disconnect
Contactor

Apply electrical anti-oxidizing
compound to busbar mating surfaces.

Components removed in
illustration for clarity only.

Front

2-row Distribution Cabinet
shown, 3 or 4-row cabinet similar.

Shown being removed from front
for clarity only. Removal is from rear.

1/2-13 x 1-1/4” Bolt
1/2" Belleville Lock Washer
1/2" Belleville Lock Washer
(concave side of Belleville
Lock Washers face each other)
1/2" Hardened Flat Washer
(4 places)
Torque to 500 in-lbs.

White/Black
Wire

Brown Wire

Brow n/W hite Wire

Red/White

Wire

Figure 5.20 Replacing a Battery Disconnect Contactor in a 2, 3, or 4-Row Distribution Cabinet

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72

Load
Disconnect
Contactor

Components removed in
illustration for clarity only.

Front

5/16-18 x 1” Bolt
5/16" Belleville Lock Washer
5/16" Belleville Lock Washer
(concave side of Belleville
Lock Washers face each other)
5/16" Hardened Flat Washer
(4 places)
Torque to 100 in-lbs.

Apply electrical anti-oxidizing
compound to busbar
mating surfaces.

Contactor styles vary
between manufacturer’s.

Black Wire

Violet/White Wire

Violet W ire

Red Wire

Violet/White Wire

Violet W ire

Black Wire

Red Wire

Figure 5.21 Replacing a Load Disconnect Contactor in a 1-Row Distribution Cabinet

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Load Disconnect

Contactor

2-row Distribution Cabinet
shown, 3 or 4-row cabinet similar.

Apply electrical anti-oxidizing

compound to busbar

mating surfaces.

5/16-18 Nut
5/16" Belleville Lock Washer
5/16" Belleville Lock Washer

(concave side of Belleville

Lock Washers face each other)

5/16" Hardened Flat Washer

(4 places)

Torque to 100 in-lbs.

Components removed in
illustration for clarity only.

Front

Contactor styles vary
between manufacturer’s.

Black Wire

Violet/White Wire

Violet W ire

Red Wire

Violet/White Wire

Violet W ire

Black Wire

Red Wire

Figure 5.22 Replacing a Load Disconnect Contactor in a 2, 3, or 4-Row Distribution Cabinet

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Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual

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