Vertiv 582127000100 User manual

NetSure™ 7100 Series
-48 VDC Power System
User Manual
Specification Number: 582127000100, 582127000101, 582127000102, 582127000103, 582127000203, 582127000500,
582127000501, 582127000502, 582127000503
Model Number: 7100

Vertiv™ NetSure™ 7100 Series -48 VDC Power System User Manual
Vertiv™ NetSure™ 7100 Series -48 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.

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TABLE OF CONTENTS
Admonishments Used in this Document.............................................................................................................................iv
Important Safety Instructions..................................................................................................................................................v
Safety Admonishments Definitions ..........................................................................................................................................................................................................................v
Safety and Regulatory Statements...........................................................................................................................................................................................................................v
Déclarations de Sécurité et de Réglementation...........................................................................................................................................................................................v
1Customer Documentation Package..................................................................................................................................1
2System Description ................................................................................................................................................................1
2.1 Lists 100, 101, 102, 103, and 203 .......................................................................................................................................................................................................................1
2.2 Lists 500, 501, 502, and 503 ...............................................................................................................................................................................................................................2
3Operating Procedures..........................................................................................................................................................3
3.1 Controller, Rectifiers, and Converters ........................................................................................................................................................................................................3
3.2 ESTOP Function.............................................................................................................................................................................................................................................................4
3.3 Controller Battery Charge Current Limit Feature...........................................................................................................................................................................4
3.4 Local Controls and Indicators ...........................................................................................................................................................................................................................4
3.4.1 Controller, Rectifiers, and Converters..................................................................................................................................................................................4
3.4.2 Distribution Cabinet.............................................................................................................................................................................................................................4
4Maintenance.............................................................................................................................................................................7
4.1 System Maintenance Procedures..................................................................................................................................................................................................................7
4.2 Adding a Rectifier or Converter Module to an Existing Module Mounting Assembly Spec. No. 588705300 ........................7
4.3 Installing a Field Expansion Module Mounting Assembly Spec. No. 588705300..........................................................................................10
4.4 Reconfiguring a Dual Voltage Distribution Panel (List DJ, FG, and FK)..................................................................................................................15
4.4.1 Removing the Distribution Panel...........................................................................................................................................................................................15
4.4.2 Reworking the Distribution Panel..........................................................................................................................................................................................17
4.4.3 Replacing the Distribution Panel ..........................................................................................................................................................................................23
5Troubleshooting and Repair ...........................................................................................................................................24
5.1 Contact Information................................................................................................................................................................................................................................................24
5.2 Controller, Rectifiers, and Converters .................................................................................................................................................................................................... 24
5.3 Controller Configuration.....................................................................................................................................................................................................................................24
5.4 System Troubleshooting Information .................................................................................................................................................................................................... 24
5.5 Replacement Information...................................................................................................................................................................................................................................25
5.6 Replacement Procedures...................................................................................................................................................................................................................................25
5.6.1 Replacing a Rectifier or Converter Module.................................................................................................................................................................25
5.6.2 Replacing the NCU Controller.................................................................................................................................................................................................25
5.6.3 Replacing a Distribution Device.............................................................................................................................................................................................26
5.6.4 Replacing a Distribution Panel (List AL, DJ, FG, and FK) ..............................................................................................................................28
5.6.5 Circuit Card Replacement Procedures............................................................................................................................................................................29
5.6.6 Replacing a Battery Disconnect Contactor................................................................................................................................................................34
5.6.7 Replacing an SPD (Surge Protection Device) (if furnished)......................................................................................................................36

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

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Important Safety Instructions
Safety Admonishments Definitions
Definitions of the safety admonishments used in this document are listed under “Admonishments Used in this Document” on page iv.
Safety and Regulatory Statements
Refer to Section 4154 (provided with your customer documentation) for Safety and Regulatory Statements.
Déclarations de Sécurité et de Réglementation
Reportez-vous à la Section 4154 (fourni avec les documents de votre client) pour les déclarations de sécurité et de réglementation.

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Vertiv™ NetSure™ 7100 Series -48 VDC Power System User Manual
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1Customer Documentation Package
This document (UM582127000100) provides User Instructions for Vertiv™ NetSure™ -48 VDC Power System Model 7100, Spec. No.
582127000, Lists 100, 101, 102, 103, 203, 500, 501, 502, and 503 only.
The complete Customer Documentation Package for Lists 100, 101, 102, 103, 203, 500, 501, 502, and 503 consists of…
NetSure -48 VDC Power System Installation Manual
•Power System Installation Instructions: IM582127000100
NetSure -48 VDC Power System User Manual
•Power System User Instructions: UM582127000100
NetSure NCU Controller User Manual
•NCU Controller User Instructions: UM1M830BNA
USB Drive with All Customer Documentation for 582127000
Applicable documents for this system are as follows.
•Power System Installation Instructions: IM582127000100 (instructions for Lists 100, 101, 102, 103, 203, 500, 501, 502, and
503)
•Power System User Instructions: UM582127000100 (instructions for Lists 100, 101, 102, 103, 203, 500, 501, 502, and 503)
•NCU Controller User Instructions: UM1M830BNA
•Rectifier Instructions: UM1R482000e3
•-48 VDC to +24 VDC Converter Instructions: UM1C48241500
•-48 VDC to -58 VDC Converter Instructions: UM1C48582000P3
•Power System “System Application Guide”: SAG582127000
•Engineering Drawings
•Also provided on the USB drive is a controller configuration drawing and the controller configuration files loaded into the
controller as shipped.
2System Description
2.1 Lists 100, 101, 102, 103, and 203
-48 VDC @ 1000 A and +24 VDC @ 500 A Power System
Lists 100, 101, 102, 103, and 203 of NetSure 7100 DC Power System are integrated power systems containing -48 VDC rectifiers, +24
VDC converters, intelligent control, metering, monitoring, and distribution.
This power system is designed to power a load while charging a positive 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 positive
output grounded.
List 100, 103, and 203 of NetSure 7100 DC Power System consist of the following components mounted in a 7’0” x 23” relay rack, List
101 is mounted in 5'0" x 23" relay rack, and List 102 is mounted in a 6'0" x 23" relay rack.

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Distribution Cabinet
A 3-row distribution cabinet is provided. The distribution cabinet is equipped with manual battery disconnect. Installed in the
distribution cabinet are one (1) List DJ distribution panel and two (2) List AL distribution panels. See SAG582127000 for descriptions.
The distribution cabinet also houses one (1) IB2 controller interface board, one (1) optional EIB controller extended interface board,
the IB4 second Ethernet port board, and the system interface board. See SAG582127000 for descriptions.
NCU (NetSure Control Unit) Controller
The controller provides power system 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.
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 Instructions (UM1R482000e3) for more information.
-48 VDC to +24 VDC DC-DC Converter Modules
Where +24 VDC load power is also required, -48 VDC to +24 VDC DC-DC converter modules are available. Refer to the Converter
Instructions (UM1C48241500) for more information.
List 100
List 100 provides zero (0) battery tray.
List 101
List 101 provides one (1) battery tray.
List 102
List 102 provides two (2) battery trays.
List 103
List 103 provides three (3) battery trays.
List 203
List 203 provides three (3) battery trays.
2.2 Lists 500, 501, 502, and 503
-48 VDC @ 1000 A and -58 VDC @ 500 A Power System
Lists 500, 501, 502, and 503 of NetSure 7100 DC Power System are integrated power systems containing -48 VDC rectifiers, -58 VDC
converters, intelligent control, metering, monitoring, and distribution.
This power system is designed to power a load while charging a positive 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 positive
output grounded.
List 500 and 503 of NetSure 7100 DC Power System consist of the following components mounted in a 7’0” x 23” relay rack, List 501 is
mounted in 5'0" x 23" relay rack, and List 502 is mounted in a 6'0" x 23" relay rack.

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Distribution Cabinet
A 3-row distribution cabinet is provided. The distribution cabinet is equipped with manual battery disconnect. Installed in the
distribution cabinet are one (1) List FJ distribution panel and two (2) List AL distribution panels. See SAG582127000 for descriptions.
The distribution cabinet also houses one (1) IB2 controller interface board, one (1) optional EIB controller extended interface board,
the IB4 second Ethernet port board, and the system interface board. See SAG582127000 for descriptions.
NCU (NetSure Control Unit) Controller
The controller provides power system 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.
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 Instructions (UM1R482000e3) for more information.
-48 VDC to -58 VDC DC-DC Converter Modules
Where -58 VDC load power is also required, converter modules are available. These converters operate from the main -48 VDC
system bus to provide -58 VDC load power. Refer to the Converter Instructions (UM1C48582000P3) for more information.
List 500
List 500 provides zero (0) battery tray.
List 501
List 501 provides one (1) battery tray.
List 502
List 502 provides two (2) battery trays.
List 503
List 503 provides three (3) battery trays.
3Operating Procedures
3.1 Controller, Rectifiers, and Converters
For operation instructions on these units, refer to the following documents.
•NCU Controller Instructions (UM1M830BNA)
•Rectifier Instructions (UM1R482000e3)
•-48 VDC to +24 VDC Converter Instructions (UM1C48241500)
•-48 VDC to -58 VDC Converter Instructions (UM1C48582000P3)

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3.2 ESTOP Function
If an ESTOP switch is wired to the IB2-1 Controller Interface Board, customer-furnished system ground applied to terminal DI8+
activates the ESTOP function. The ESTOP function shuts down and locks out the rectifiers, shuts down and locks out the optional
-48 VDC to +24 VDC converters or -48 VDC to -58 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 J3 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 -48 VDC to +24 VDC converters or -48 VDC to -58 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 -48 VDC to
+24 VDC converters or -48 VDC to -58 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 -48 VDC to +24 VDC converters or -48 VDC to -58 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 -48 VDC to +24 VDC converters or -48 VDC to -58 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.
3.3 Controller Battery Charge Current Limit Feature
Functionality: After a failure of the input source (commercial AC) 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 NCU Controller 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 47 VDC. The default value for battery recharge current limit is 0.1xC10.
3.4 Local Controls and Indicators
3.4.1 Controller, Rectifiers, and Converters
Refer to the controller, rectifier, and converter instructions for descriptions of the local controls and indicators located on these units.
3.4.2 Distribution Cabinet
Refer to this section for descriptions of the local controls and indicators located on the circuit cards installed in the distribution
cabinet.

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System Interface Board Indicator, Switch, and Test Points
The system interface board contains a manual battery disconnect switch and indicator. The board also contains test points to
externally monitor system voltage. Refer to Figure 3.1 for circuit card location and Figure 3.2 for indicator, switch, and test points
descriptions.
ALERT! Do not hold MBD switch (S1) in the up or down 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.
IB2 (Controller Interface Board) and OptionalEIB (Controller Extended Interface Board) Indicator
The IB2 and optional EIB boards have a green LED indicator which is lit in normal operation and flashes when the IB2 or EIB board is
communicating with the controller. Refer to Figure 3.1 for IB2 and EIB locations.
Figure 3.1 Circuit Card Locations
(Front Door Removed in
Illustration for Clarity)
Distribution
Cabinet
IB2-1
(Interface
Board #1)
MA4C5U31
IB4
(2nd Ethernet
Port Board)
558076
Optional EIB-1
(Extended
Interface Board)
MA455U41
System Interface
Board 562662
NCU Controller
1M830DNA

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Figure 3.2 System Interface Board
TP1 (-) and TP2 (+)
System Voltage
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).
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.
C1
CR1
CR2
CR3
CR4
DS1
F1
F2
H1
J1
J2
J3
J4
J5
J6
K1
K2
K3
K4
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
R12
R13
R14
R15
R16
R18
S1
TB1
TP1
TP2
562662
0 0 0 X X X X X
AXXXXXXXX

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4Maintenance
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. IM582127000100,
“Making Electrical Connections” section.
4.2 Adding a Rectifier or Converter Module to an Existing Module Mounting
Assembly Spec. No. 588705300
To increase system current capacity, a rectifier module can easily be added to an existing module mounting assembly Spec. No.
588705300 that contains an empty rectifier module mounting position. Likewise, to increase subsystem capacity a -48 VDC to
+24 VDC DC-DC converter module can be added to a module mounting assembly Spec. No. 588705300 that contains an empty
-48 VDC to +24 VDC converter module mounting position. A -48 VDC to -58 VDC DC-DC converter module can be added to a
module mounting shelf that contains an empty -48 VDC to -58 VDC converter module mounting position.
Rectifier and converter modules can be inserted or removed with power applied (hot swappable).
Rectifiers modules can be installed in any mounting position of each module mounting assembly. Converter modules can be installed
in any of the three far right mounting positions of the three lower module mounting assemblies (as viewed from the front). See
Figure 4.3. See Alerts below for restrictions.
NOTE! Each rectifier and converter module locks into the module mounting assembly by means of a latch located on the
bottom of the module. The latch and module handle are interactive. Pushing the handle up into the module’s front panel
causes the latch to extend to the locking position; pulling the handle down out from the module’s front panel causes the latch
to retract. See Figure 4.3.
WARNING! To prevent damage to the latching mechanism, ensure the handle is in the open position when installing or
removing a module. NEVER hold the handle in the closed position when installing a module into a shelf.
ALERT! The system can either have +24V DC-DC converters installed or -58V DC-DC converters installed. The system
cannot have both types of converters installed at the same time.
ALERT! The -48 VDC to +24 VDC converter modules must only be installed in a system position that accepts a +24V DC-DC
converter. Refer to labeling on the system’s module mounting shelf. A sample of this labeling is provided in Figure 4.1.
Figure 4.1 Sample Module Mounting Shelf Labeling

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ALERT! The -48 VDC to -58 VDC converter modules must only be installed in a system position that accepts a -58V DC-DC
converter. Refer to labeling on the system’s module mounting shelf. A sample of this labeling is provided in Figure 4.2.
Figure 4.2 Sample Module Mounting Shelf Labeling
Procedure
1. Unpack the modules.
2. Note the model number located on the front of each module. Model numbers starting with the letter “R” are rectifier modules.
Model numbers starting with the letter “C” are converter modules.
3. Place the module into an unoccupied mounting position without sliding it in completely. Rectifier modules can be installed in
any mounting position of each module mounting assembly. Converter modules can be installed in any of the three far right
mounting positions of the three lower module mounting assemblies (as viewed from the front). See Figure 4.3.
4. Loosen the captive screw on the module’s handle. Pull the handle down out from the module’s front panel (this will also
retract the latch mechanism). See Figure 4.3.
5. Push the module completely into the shelf.
6. Push the handle up into the module’s front panel. This will lock the module securely to the shelf. Tighten the captive screw
on the handle.
7. Repeat the above steps for each module being installed in the system.
8. After the modules are physically installed in the module mounting assembly(s), they are ready for operation immediately after
power is supplied to them.
NOTE! It is recommended that the current limit point be checked whenever a rectifier is added to or removed from the
power system. Refer “Checking the Controller’s Current Limit Point after Adding or Removing a Rectifier Module” on page 24.
NOTE! The rectifier or converter being added is assigned by the controller the lowest available identification number. If
desired, you can change the identification number. Refer to the NCU Controller Instructions (UM1M830BNA) for a procedure.

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Figure 4.3 Installing Rectifier and Converter Modules in a Spec. No. 588705300 Module Mounting Assembly
Rectifier or Converter Module
Model Number Label
(R48-2000e3 Rectifier)
(C48/24-1500 Converter)
(C48/58-2000P3 Converter)
Captive Screw
Latch
Handle
Rectifiers Only in Top Shelf
Rectifiers in Any Position
Rectifiers or Converters in Far Right Three Positions
Front View

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4.3 Installing a Field Expansion Module Mounting Assembly Spec. No.
588705300
DANGER! Adhere to the “Important Safety Instructions” presented at the front of this document.
CAUTION! During this procedure, the rectifiers in the bottom shelf will be disconnected from the system DC bus and should
be de-energized or removed from the shelf before beginning the procedure.
NOTE! Refer to Figure 4.5 and Figure 4.6 as this procedure is performed.
Procedure
1. Remove the busbar rear shield from the existing module mounting assemblies. Remove the cut-out panel from the busbar
rear shield by gently bending the panel until it snaps from the busbar rear shield.
2. Remove the hardware from the lowest module mounting assembly’s -48V, return, and +24V or -58V (if present) busbars.
3. Install one (1) or two (2) expansion module mounting assemblies directly below the bottom-most module mounting assembly
in the rack. Use the mounting hardware provided with the expansion module mounting assembly(s).
Hardware build-up is:
12-24 x 3/4" screw and flat washer, (1) set per side.
12-24 x 3/4" screw and ground washer, (1) set per side.
NOTE! Install the ground washers so the teeth make contact with the metal on the mounting angles. Torque all screws to 65
in-lbs.
4. Remove the busbar rear shield from the expansion module mounting assembly(s).
NOTE! Apply electrical anti-oxidizing compound to busbar mating surfaces before performing the next step.
5. Install the busbars provided with the expansion module mounting assembly(s) between the studs on the expansion module
mounting assembly(s) and the studs on the shelf above it. Secure these busbars to the expansion module mounting
assembly(s) with the hardware provided with the expansion module mounting assembly(s). Secure these busbars to the
shelf above the expansion module mounting assembly with the hardware previously removed. Torque to 60 in-lbs.
Hardware build-up for these connections is:
M6 Nut,
M6 Belleville lock washer,
M6 flat washer.
6. If One Expansion Module Mounting Assembly Installed: Disconnect the connectors on the left rear (when viewed from the
rear) of the bottom-most existing module mounting assembly. Connect these to the two connectors one the left rear (when
viewed from the rear) of the expansion module mounting assembly. Refer to Figure 4.6, first sketch.

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7. If Two Expansion Module Mounting Assemblies Installed: Disconnect the connectors on the left rear (when viewed from the
rear) of the bottom-most existing module mounting assembly. Connect one of these to the mating connector in the first
expansion module mounting assembly. Connect the other connector from the bottom-most existing module mounting
assembly to the mating connector in the second expansion module mounting assembly. Connect the remaining two
connectors, one from each expansion module mounting assembly, together. Refer to Figure 4.6, second sketch.
8. Re-install the rear busbar shield previously removed from the existing module mounting assembly. Re-install the rear busbar
shield previously removed from the expansion module mounting assembly(s).
9. Refer to the Power System Installation Instructions (IM582127000100) and connect AC input power to the expansion module
mounting assembly to provide AC input for rectifiers, if needed.
10. Refer to the Power System Installation Instructions (IM582127000100) and install rectifier and converter modules into the
expansion module mounting assembly as required.
11. For List 33, two sets of converter polarity caution labels are provided loose. Based on the converter output voltage, apply the
correct label to right three converter slots of the expansion shelf: +24V label 60028788 for use with +24VDC converters;
-58V label 60028735 for use with -58VDC converters. A sample of this labeling is provided in Figure 4.4.
Figure 4.4 Caution Labels
60028788 (+24V Label) 60028735 (-58V Label)

Vertiv™ NetSure™ 7100 Series -48 VDC Power System User Manual
Proprietary and Confidential © 2022 Vertiv Group Corp.
12
Figure 4.5 Installing a Field Expansion Module Mounting Assembly Spec. No. 588705300
1. Remove busbar rear shield from
existing module mounting assemblies.
Remove the cut-out panel
from the busbar rear shield.
3. Install one (1) or two (2)
expansion module mounting
assemblies into the rack.
4. Remove busbar rear shield from
expansion module mounting
assembly(s).
5. Install the busbars provided with the expansion module mounting assembly(s)
between the busbars on the expansion module mounting assembly(s) and the
busbars on the shelf above it. Torque to 60 in-lbs.
6. After CAN connections between module mounting assemblies are made,
re-install the rear busbar shields previously removed.
Front
Rear
Busbar Rear Shield
Cut-Out Panel
Rear
Apply +24V or -58V label to right three
converter slots of the expansion
module mounting assembly(s).
2. Remove hardware from the
lowest module mounting
assembly’s -48V, return, and
+24V or -58V (if present) busbars.

Vertiv™ NetSure™ 7100 Series -48 VDC Power System User Manual
Proprietary and Confidential © 2022 Vertiv Group Corp.
13
Figure 4.6 Controller CAN Bus, Module Mounting Assembly Spec. No. 588705300 (cont’d on next page)
58870530001
RECT/CONV SHELF
58870530021
RECT SHELF
58870530001
RECT/CONV SHELF
58870530001
RECT/CONV SHELF
108107106105104103
101 102
114113112111110109
120119118117116115
126125124123122121
201BK 26 GA
201R 26 GA
1
2
203BK 26 GA
203R 26 GA
1
2
1
2
2
1
1
2
2
1
1
2
2
1
P13
P12
CAN
CAN
CANCAN
CANCAN
CANCAN
Expansion Module
Mounting Assembly
Note: Only CAN connections
shown in illustration.
Rear View
These connectors should
be disconnected from each
other and then connected to
the two connectors in the
expansion module
mounting assembly as
shown.

Vertiv™ NetSure™ 7100 Series -48 VDC Power System User Manual
Proprietary and Confidential © 2022 Vertiv Group Corp.
14
Figure 4.6 Controller CAN Bus, Module Mounting Assembly Spec. No. 588705300 (cont’d from previous page)
58870530001
RECT/CONV SHELF
58870530021
RECT SHELF
58870530001
RECT/CONV SHELF
58870530001
RECT/CONV SHELF
108107106105104103
101 102
114113112111110109
120119118117116115
126125124123122121
201BK 26 GA
201R 26 GA
1
2
203BK 26 GA
203R 26 GA
1
2
1
2
2
1
1
2
2
1
1
2
2
1
P13
P12
CANCAN
CANCAN
CANCAN
CANCAN
Rear View
Expansion Module
Mounting Assembly
Expansion Module
Mounting Assembly
Note: Only CAN connections
shown in illustration.
These connectors
should be disconnected
from each other and
then connected to the
connectors from the
expansion module
mounting assembly
as shown.