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
v
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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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
1
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
Vertiv™ NetSure™ 710NPBA +24 VDC Power System User Manual
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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.
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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
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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
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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
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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.
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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
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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
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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
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