Vertiv NetSure 512NGBB User manual

NetSure™ 512NGBB
-48 VDC Power System
User Manual
Specification Number: 582137000
Model Number: 512NGBB

Vertiv™ NetSure™ 512NGBB -48 VDC Power System User Manual
Vertiv™ NetSure™ 512NGBB -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
1System Overview ............................................................................................................................................................... 1
1.1 Customer Documentation Package .............................................................................................................................................................................................................1
1.2 System Description.....................................................................................................................................................................................................................................................2
2Operating Procedures ..................................................................................................................................................... 4
2.1 Controller, Rectifiers, and Optional Converters.................................................................................................................................................................................4
2.2 ESTOP Function.............................................................................................................................................................................................................................................................4
2.3 Controller Battery Charge Current Limit Feature...........................................................................................................................................................................4
2.4 Local Controls and Indicators ...........................................................................................................................................................................................................................5
2.4.1 General.............................................................................................................................................................................................................................................................5
2.4.2 List 27 Distribution Cabinet Local Controls and Indicators............................................................................................................................5
2.4.3 Optional Transient Voltage Surge Suppressor Device (TVSS) ..................................................................................................................6
3Maintenance ....................................................................................................................................................................... 7
3.1 System Maintenance Procedures..................................................................................................................................................................................................................7
3.2 Adding a Module to an Existing Module Mounting Shelf........................................................................................................................................................7
3.2.1 General .............................................................................................................................................................................................................................................................7
3.2.2 System with List 7 Distribution Cabinet............................................................................................................................................................................7
3.2.3 System with List 27 Distribution Cabinet.........................................................................................................................................................................7
3.2.4 Adding a Module to an Existing Module Mounting Shelf .................................................................................................................................7
3.3 Installing a Field Expansion Module Mounting Shelf in a System with a List 27 Distribution Cabinet ....................................... 11
3.4 Reconfiguring a Dual Voltage Distribution Panel (List DH, DI, DJ, DK, DL, FG, FH, FI, FJ, FK, FL) in a
582137000 List 27 Distribution Cabinet................................................................................................................................................................................................15
3.5 For Re-Configuring to a Single -48V Application (without +24V or -58V output)......................................................................................20
4Troubleshooting and Repair ........................................................................................................................................ 23
4.1 Contact Information.................................................................................................................................................................................................................................................23
4.2 Controller, Rectifiers, and Optional Converters..............................................................................................................................................................................23
4.3 Controller Configuration......................................................................................................................................................................................................................................23
4.4 System Troubleshooting Information.....................................................................................................................................................................................................23
4.5 Replacement Information..................................................................................................................................................................................................................................24
4.6 Replacement Procedures...................................................................................................................................................................................................................................25
4.6.1 Important Safety Instructions ..................................................................................................................................................................................................25
4.6.2 Replacing a Rectifier or Converter Module.................................................................................................................................................................25
4.6.3 Replacing the Controller...............................................................................................................................................................................................................25
4.6.4 Replacing a Distribution Device.............................................................................................................................................................................................25
4.6.5 Circuit Card Replacement Procedures............................................................................................................................................................................28
4.6.6 Replacing an SPD (Surge Protection Device) (if furnished).......................................................................................................................47

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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 lo
ss, 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™ 512NGBB -48 VDC Power System User Manual
Proprietary and Confidential © 2022 Vertiv Group Corp.
1
1System Overview
1.1 Customer Documentation Package
This document (UM582137000) provides User Instructions for Vertiv™ NetSure™ -48 VDC Power System Model 512NGBB, Spec. No.
582137000.
The complete Customer Documentation Package consists of…
NetSure™-48 VDC Power System Installation Manual
•Power System Installation Instructions: IM582137000
•Power System Quick Start Guide: QS582137000
Vertiv™ NetSure™NCU Controller User Manual
•NCU Controller User Instructions: UM1M830BNA
USB Drive with All Customer Documentation
•Power System Installation Instructions: IM582137000
•Power System Quick Start Guide: QS582137000
•Power System User Instructions: UM582137000
•Power System “System Application Guide”: SAG582137000
•Module Mounting Shelf Power Data Sheet: PD588705300
•NCU Controller User Instructions: UM1M830BNA
•Rectifier Instructions: UM1R482000E3
•-48 VDC to +24 VDC Converter Instructions: UM1C48241500
•-48 VDC to -58 VDC Converter Instructions: UM1C48582000P3
•Engineering Drawings
•Also provided on the USB drive is a controller configuration drawing and the controller configuration files loaded into the
controller as shipped.

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1.2 System Description
-48 VDC @ 200A / +24 VDC @ 50A Power System
(System with List 7 Distribution Cabinet)
Vertiv cabinets F2012504, F2015053, and F2016064:
-48 VDC @ 525A / +24 VDC @ 400A (400A per row)
(System with List 27 Distribution Cabinet)
Vertiv cabinet F2021019:
-48 VDC @ 525A / -58 VDC (max.) @ 274A (max.)
(400A per row for the -48 VDC and 274A per row for the -58 VDC)
(System with List 27 Distribution Cabinet)
Vertiv cabinets F2020029, F2020030:
-48 VDC @ 525A / -58 VDC (max.) @ 300A (max.)
(400A per row for the -48 VDC and 300A per row for the -58 VDC)
(System with List 27 Distribution Cabinet)
Non-Vertiv cabinet system:
Power system tested in 65° C ambient without airflow:
-48 VDC @ 400A / -58 VDC (max.) @ 300A (max.)
(300A per row for both -48 VDC and -58 VDC.)
(System with List 27 Distribution Cabinet)
The Vertiv™ NetSure™ 512NGBB DC Power System is an integrated power system containing rectifiers, optional converters, intelligent
control, metering, monitoring, and distribution. A power system with List 27 distribution cabinet is usually a part of a configured
cabinet system. However, there is a stand-alone model available which is tested in a 65°C ambient. It does not fit into a standard relay
rack but can be mounted in non-Vertiv cabinets. A power system with List 7 distribution cabinet can be ordered as part of a
configured system to be mounted into an equipment cabinet designed for the power system or as a stand-alone system to be
mounted in a relay rack.
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.
This system consists of the following components.
Distribution Cabinet
The system always includes a distribution cabinet, which provides DC distribution through fuses and/or circuit breakers. The
distribution cabinet may house the controller (depending on system configuration).
List 7: The List 7 distribution cabinet accepts one (1) distribution panel (List BW). List BW distribution panel provides dual voltage
load distribution (-48 VDC primary voltage and +24 VDC secondary voltage) and -48 VDC battery disconnect positions. This
distribution panel is configured to accept bullet nose type circuit breakers and TPS/TLS fuseholders.
List 27: The List 27 distribution cabinet accepts two (2) distribution panels. A variety of distribution panels are available that provide
load distribution and dual voltage load distribution for use with -48 VDC to +24 VDC converters or -48 VDC to -58 VDC converters.
These distribution panels are configured to accept bullet nose type circuit breakers and TPS/TLS fuseholders.
The distribution cabinet may be equipped with low voltage load disconnect (LVLD), low voltage battery disconnect (LVBD), and in a
List 27 a manual battery disconnect (depending on available configuration options).

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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 TFT 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.
Module Mounting Shelf
The system contains one (1) to four (4) module mounting shelves (depending on system configuration, see SAG582137000), which
may house rectifier modules, optional converter modules, and a controller (depending on shelf configuration, see PD588705300).
Refer to PD588705300 for additional 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.
Optional -48 VDC to +24 VDC Converter System
Where +24 VDC load power is also required, DC-DC converter modules are available. These converters operate from the main -48
VDC system bus to provide +24 VDC load power. Refer to the Converter Instructions (UM1C48241500) for more information.
Optional -48 VDC to -58 VDC Converter System
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.

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2Operating Procedures
2.1 Controller, Rectifiers, and Optional 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)
2.2 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 optional -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 J4 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 (load type) will close after the “LVD
Reconnect Delay” has elapsed (customer configurable via the controller) if battery voltage is present on the bus. Rectifiers and
optional -48 VDC to +24 VDC converters or optional -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 optional -48 VDC to +24 VDC converters or optional -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 elapsed (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.
2.3 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 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 47 VDC.

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2.4 Local Controls and Indicators
2.4.1 General
Refer to the Controller, Rectifier, and Converter Instructions for descriptions of the local controls and indicators located on these units.
Refer to the next section for descriptions of the local controls and indicators located on the circuit cards installed inside the List 27
distribution cabinet.
2.4.2 List 27 Distribution Cabinet Local Controls and Indicators
Optional Manual Battery Disconnect Circuit Card
The optional manual battery disconnect circuit card contains a manual battery disconnect switch and indicator. Refer to Figure 2.1.
Optional Critical Alarm Indicator
The system may be equipped with an optional critical alarm indicator which illuminates if the controller issues a critical alarm. Refer to
Figure 2.2.
Figure 2.1 Optional Manual Battery Disconnect Circuit Card - List 27 Distribution Cabinet
Momentary UP / Middle / Momentary Down
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.
Manual Battery Disconnect Active Indicator
Manual Battery
Disconnect Switch
Illuminates if the Battery Disconnect Contactor has
been manually disconnected (placed in open position).

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Figure 2.2 Optional Critical Alarm Indicator - List 27 Distribution Cabinet
2.4.3 Optional Transient Voltage Surge Suppressor Device (TVSS)
A TVSS device contains an indicator which illuminates when the circuit activates to suppress voltages. Refer to Figure 2.3.
Figure 2.3 Optional TVSS Device
Optional
Critical Alarm
Indicator
Front

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3Maintenance
3.1 System Maintenance Procedures
It is recommended to perform the maintenance procedures listed in Table 3.1 every 6 months to ensure continual system operation.
Table 3.1 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. IM582137000
3.2 Adding a Module to an Existing Module Mounting Shelf
3.2.1 General
To increase system current capacity, a rectifier module can easily be added to an existing module mounting shelf 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 shelf that contains an -48 VDC to +24 VDC empty converter module mounting position. Also 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).
3.2.2 System with List 7 Distribution Cabinet
In the top module mounting shelf, rectifier modules can be installed in any mounting position except the far left. Converter modules
(-48 VDC to +24 VDC) CANNOT be installed in the top shelf.See Figure 3.3.
In the bottom module mounting shelf, rectifier modules can be installed in any mounting position. Converter modules (-48 VDC to
+24 VDC) can be installed in any of the three far right mounting positions (as viewed from the front).See Figure 3.3.
3.2.3 System with List 27 Distribution Cabinet
Rectifier modules can be installed in any mounting position of each module mounting shelf. Converter modules can be installed in any
of the three far right mounting positions of each module mounting shelf (as viewed from the front).See Figure 3.4. See Alerts below
for restrictions.
3.2.4 Adding a Module to an Existing Module Mounting Shelf
NOTE! Each rectifier and converter module locks into the module mounting shelf 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 3.3 or Figure 3.4.
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.

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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 3.1.
Figure 3.1 Sample Module Mounting Shelf Labeling
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 3.2.
Figure 3.2 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. See Figure 3.3 or Figure 3.4 for
acceptable positions. Each module mounting assembly may house rectifier modules, optional -48 VDC to +24 VDC converter
modules, or optional -48 VDC to -58 VDC converter modules (depending on configuration).
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 3.3 or Figure 3.4.
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 mounting shelf(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 to “Checking the Controller’s Current Limit Point after Adding or Removing a Rectifier.”
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 Instructions (UM1M830BNA) for a procedure.

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Figure 3.3 Installing Rectifier and Converter Modules, System with List 7 Distribution Cabinet
Module Mounting Shelf
(588705300 List 12)
Front
Rectifier or Converter
Mounting Positions
Module Mounting Shelf
(588705300 List 2)
UPPER SHELF
LOWER SHELF
Rectifier
Mounting Positions
Rectifier
Mounting Positions
Controller
Rectifier or Converter Module
Model Number Label
(R48-2000e3 Rectifier)
(C48/24-1500 Converter)
Captive Screw
Latch
Handle

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Figure 3.4 Installing Rectifier and Converter Modules, System with List 27 Distribution Cabinet
Module Mounting Shelf(s)
Rectifier
Mounting Positions
Rectifier or Converter
Mounting Positions
Front View
Rectifier or Converter Module
Model Number Label
(R48-2000e3 Rectifier)
(C48/24-1500 Converter)
(C48/58-2000P3 Converter)
Captive Screw
Latch
Handle

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3.3 Installing a Field Expansion Module Mounting Shelf in a System with a List
27 Distribution Cabinet
NOTE! A field expansion module mounting shelf CANNOT be installed in a system with a List 7 distribution cabinet.
DANGER! Adhere to the “Important Safety Instructions” presented at the front of this document.
NOTE! Refer to Figure 3.6 and Figure 3.7 as this procedure is performed.
Procedure
1. Remove the busbar rear shield from the lowest module mounting shelf in the rack. Remove the bottom 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 shelf’s -48V, return, and +24V or -58 V (if present) busbars.
a) Remove the mounting angles attached to the shelf and replace with P/N 60056566. Place the mounting angle in
position as shown in Figure 3.6. Discard the other mounting angles.
3. Install the expansion module mounting shelf directly below the bottom-most module mounting shelf in the rack. Use the
mounting hardware provided with the expansion module mounting shelf.
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 shelf.
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 shelf between the studs on the expansion module
mounting shelf and the studs on the shelf above it. Secure these busbars to the expansion module mounting shelf with the
hardware provided with the expansion module mounting shelf. Secure these busbars to the shelf above the expansion
module mounting shelf with the hardware previously removed. Torque to 60 in-lbs.
Hardware build-up for these connections are:
M6 Nut,
M6 Belleville lock washer,
M6 flat washer.
6. Disconnect the CAN cable coming from the distribution cabinet from the connector on the bottom-most existing module
mounting shelf and connect this cable to the same connector on the expansion module mounting shelf.
7. Connect the open CAN connector on the bottom-most existing module mounting shelf to the open connector on the
expansion module mounting shelf.

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8. Re-install the rear busbar shield previously removed from the existing module mounting shelf. Re-install the rear busbar
shield previously removed from the expansion module mounting shelf.
9. Refer to the Power System Installation Instructions (IM582137000) and connect AC input power to the expansion module
mounting shelf.
10. Refer to the Power System Installation Instructions (IM582137000) and install rectifier and converter modules into the
expansion module mounting shelf as required.
11. For the expansion shelf, 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: “-48 VDC OR +24 VDC” label (P/N
60037065) for use with +24 VDC converters; “-48 VDC OR -58 VDC” label (P/N 60037064) for use with -58 VDC converters.
A sample of this labeling is provided in Figure 3.5.
Figure 3.5 Caution Labels
60037065 (-48VDC OR +24VDC Label) 60037064 (-48VDC OR -58VDC Label)

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Figure 3.6 Installing a Field Expansion Module Mounting Shelf in a System with List 27 Distribution Cabinet
1. Remove busbar rear shield from
lowest module mounting shelf
in rack. Remove the bottom panel
from the busbar rear shield.
a. Remove the mounting angles
attached to the shelf and
replace with P/N 60056566.
Place the mounting angle
in position as shown below.
2. Remove hardware from the
3. Install the expansion module
mounting shelf into the rack.
4. Remove busbar rear shield from
expansion module mounting shelf.
5. Install the busbars provided
with the expansion module
mounting shelf between the
shelves. Torque to 60 in-lbs.
6. Re-install the rear busbar
shields previously removed.
Rear
Front
Rear
Busbar Rear Shield
Apply “-48 VDC OR -58 VDC” label or
“-48 VDC OR +24 VDC” label to right
three converter slots of the expansion shelf
based on the converter output voltage.
lowest module mounting
-48V, return, and +24V or -58V
(if present) busbars.
shelf’s

Vertiv™ NetSure™ 512NGBB -48 VDC Power System User Manual
Proprietary and Confidential © 2022 Vertiv Group Corp.
14
Figure 3.7 Installing a Field Expansion Module Mounting Shelf in a System with List 27 Distribution Cabinet - Controller CAN
Bus
Exploded View Shown to
Illustrate Wire Connections Only
to Controller to Termination
Plug
Existing Module
Mounting Shelf
Existing Module
Mounting Shelf
These connectors
are factory connected.
These connectors
are factory connected.
These connectors
are factory connected.
Existing Module
Mounting Shelf
Expansion Module
Mounting Shelf
Disconnect cable coming
from distribution cabinet
from this connector on
bottom-most existing
shelf, then connect to the
same connector on the
expansion shelf.
Now connect these
two connectors togethe r.
Rear View
Factory provided jumper
to bring connectors to
same side of shelf.
Rear View
Factory provided jumper
to bring connectors to
same side of shelf.
Rear View
Factory provided jumper
to bring connectors to
same side of shelf.
Rear View
Factory provided jumper
to bring connectors to
same side of shelf.
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