VERTIV 7100 Series NetSure -48 VDC Power System User Manual

7100 Series NetSure -48 VDC Power System

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

VertivTM NetSureTM 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.
VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual

VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
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 2.1 Lists 100, 101, 102, 103, and 203 …………………………………………………………………………………………………………………………………………………………………………………………….2 2.2 Lists 500, 501, 502, and 503…………………………………………………………………………………………………………………………………………………………………………………………………….3 3 Operating Procedures ………………………………………………………………………………………………………………………………….. 4 3.1 Controller, Rectifiers, and Converters………………………………………………………………………………………………………………………………………………………………………………..4 3.2 ESTOP Function……………………………………………………………………………………………………………………………………………………………………………………………………………………………….4 3.3 Controller Battery Charge Current Limit Feature………………………………………………………………………………………………………………………………………………………4 3.4 Local Controls and Indicators …………………………………………………………………………………………………………………………………………………………………………………………………5
3.4.1 Controller, Rectifiers, and Converters…………………………………………………………………………………………………………………………………………………………….5 3.4.2 Distribution Cabinet…………………………………………………………………………………………………………………………………………………………………………………………………..5 4 Maintenance ………………………………………………………………………………………………………………………………………………….. 8 4.1 System Maintenance Procedures…………………………………………………………………………………………………………………………………………………………………………………………8 4.2 Adding a Rectifier or Converter Module to an Existing Module Mounting Assembly Spec. No. 588705300……………………8 4.3 Reconfiguring a Dual Voltage Distribution Panel (List DJ and FJ) …………………………………………………………………………………………………………….. 11 4.3.1 Removing the Distribution Panel…………………………………………………………………………………………………………………………………………………………………….11 4.3.2 Reworking the Distribution Panel……………………………………………………………………………………………………………………………………………………………………13 4.3.3 Replacing the Distribution Panel ……………………………………………………………………………………………………………………………………………………………………19 5 Troubleshooting and Repair ……………………………………………………………………………………………………………………….20 5.1 Contact Information……………………………………………………………………………………………………………………………………………………………………………………………………………………20 5.2 Controller, Rectifiers, and Converters…………………………………………………………………………………………………………………………………………………………………………….20 5.3 Controller Configuration………………………………………………………………………………………………………………………………………………………………………………………………………….20 5.4 System Troubleshooting Information …………………………………………………………………………………………………………………………………………………………………………….20 5.5 Replacement Information…………………………………………………………………………………………………………………………………………………………………………………………………………21 5.6 Replacement Procedures…………………………………………………………………………………………………………………………………………………………………………………………………………21 5.6.1 Replacing a Rectifier or Converter Module………………………………………………………………………………………………………………………………………………21 5.6.2 Replacing the NCU Controller…………………………………………………………………………………………………………………………………………………………………………..21 5.6.3 Replacing a Distribution Device………………………………………………………………………………………………………………………………………………………………………22 5.6.4 Replacing a Distribution Panel (List AL, DJ, FJ)…………………………………………………………………………………………………………………………………24 5.6.5 Circuit Card Replacement Procedures……………………………………………………………………………………………………………………………………………………….26 5.6.6 Replacing a Battery Disconnect Contactor…………………………………………………………………………………………………………………………………………….30
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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
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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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
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 deenergized 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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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
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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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
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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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
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.
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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
1 Customer Documentation Package
This document (UM582127000100) provides User Instructions for VertivTM NetSureTM -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.
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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
2 System 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.
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.
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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
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.
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.
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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
3 Operating 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)
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.
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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
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.
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.
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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
Figure 3.1 Circuit Card Locations
Distribution Cabinet

NCU Controller 1M830DNA
System Interface Board 562662

Optional EIB-1 (Extended
Interface Board) MA455U41

(Front Door Removed in Illustration for Clarity)

IB2-1 (Interface Board #1) MA4C5U31

IB4 (2nd Ethernet Port Board)
558076

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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual

Figure 3.2 System Interface Board

F2 F1
562662
K4
CR4 R9
R8

CR1 CR3

J1 J4

R14 R16 R18

R15

TB1

K3

K2

J6

R5

R11

R10

J5

K1

R2 R1 R3 R4 CR2
TP1

R6

J3

S1
AXXXXXXXX

DS1

000XXXXX

R12 R13 C1

TP2 R7

J2 H1

Manual Battery Disconnect Switch

Manual Battery Disconnect Active Indicator

TP1 (-) and TP2 (+) System Voltage

Illuminates if the Battery Disconnect Contactor has been manually disconnected (placed in open position).

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.

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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual

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.

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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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
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 20. 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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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
Figure 4.3 Installing Rectifier and Converter Modules in a Spec. No. 588705300 Module Mounting Assembly

Front View

Rectifiers Only in Top Shelf Rectifiers in Any Position Rectifiers or Converters in Far Right Three Positions
Rectifier or Converter Module

Captive Screw

Handle

Model Number Label (R48-2000e3 Rectifier) (C48/24-1500 Converter) (C48/58-2000P3 Converter)
10

Latch

VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
4.3 Reconfiguring a Dual Voltage Distribution Panel (List DJ, FG, and FK)
Perform the following procedure to reconfigure a dual voltage distribution panel (List DJ, FG, and FK) 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.
4.3.1 Removing the Distribution Panel
Procedure 1. Performing this procedure may activate external alarms. Do one of the following. If possible, disable these alarms. If these alarms cannot be easily disabled, notify the appropriate personnel to disregard any future alarms associated with this system while the procedure is being performed. 2. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position. 3. Remove the plastic shield covering the circuit breakers and/or fuseholders on the distribution panel to be removed by loosening the screws holding the shield and sliding the shield upwards. 4. Record circuit breaker and/or fuse positions and sizes. 5. Remove circuit breakers and/or fuseholders. 6. Label the load leads. 7. Disconnect and insulate all load leads from the circuit breaker and/or fuse positions. 8. Disconnect and insulate all load return leads from the ground busbar. 9. Refer to Figure 4.4 and remove the hardware securing the +24V or -58V 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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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual

Figure 4.4 Removing/Installing the Distribution Panel

Distribution Panel Hardware
10-32 x 5/8″ Screw #10 Flat Washer Torque to 31 in-lbs.

Ground Busbar Hardware
1/4-20 x 1″ Bolt 1/4″ Belleville Lock Washer 1/4″ Flat Washer Torque to 60 in- lbs.
System Load Distribution Busbar Hardware
1/4-20 x 1″ Bolt 1/4″ Belleville Lock Washer 1/4″ Flat Washer Torque to 60 in- lbs.

Front

In-Line FA/CBA Connector
Components removed in illustration for clarity only.

Distribution Panel Hardware 10-32 x 5/8″ Screw #10 Flat Washer Torque to 31 in-lbs.
Front

List DG (Lists DE, DF, DH, DJ, DK FG, FE, FF, FH, FJ, and FK similar.)

Rear
Lugs can be landed back-to-back.
Connect “+24V” or “-58V” jumpers to an available landing here. Assembly order is: lug, 1/4″ flat washer, 1/4″ lock washer, 1/4-20 x 3/4″ bolt. Torque to 84 in-lbs.

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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual

4.3.2 Reworking the Distribution Panel
You can reconfigure the distribution panel to swap -48V distribution positions for +24V or -58V distribution positions, and vice versa, in groups of four. The resulting assembly can have following positions. See Table 4.2.

Table 4.2 Positions

(0) -48V (6) -48V (10) -48V (14) -48V (18) -48V (22) -48V (26) -48V

Positions

(26) +24V or -58V (20) +24V or -58V (16) +24V or -58V (12) +24V or -58V (8) +24V or -58V (4) +24V or -58V (0) +24V or -58V

You do this by moving the shorting bus and CBA/FA alarm strap. Refer to Figure 4.5 to reconfigure the distribution panel.
Note that for a List DE and FE distribution panel, you must also move the subsystem input power busbar as shown in Figure 4.5.
Note that if you reconfigure a distribution panel for all subsystem voltage (List DK or FK) or all system voltage, you must also move the extra CBA/FA alarm strap stored on the far left (as viewed from the rear) to the far right position (as shown in Figure 4.5).
Note that if you reconfigure a distribution panel for all subsystem voltage (List DK or FK), you must disconnect and insulate the system CBA/FA lead (as shown in Figure 4.5).
Note that if you reconfigure a distribution panel for all system voltage, you must disconnect and insulate the subsystem CBA/FA lead (as shown in Figure 4.5).

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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
Figure 4.5 Reworking the Distribution Panel (cont’d on next page)
List DE or FE Dual Voltage Distribution Panel
List DF or FF Dual Voltage Distribution Panel
List DG or FG Dual Voltage Distribution Panel
List DH or FH Dual Voltage Distribution Panel
List DJ or FJ Dual Voltage Distribution Panel
List DK or FK Dual Voltage Distribution Panel
Reconfigured for all System Positions
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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual

Figure 4.5 Reworking the Distribution Panel (cont’d from previous page, cont’d on next page)
List DE and FE Only: Move the +24V or -58V Input Power Busbar one (1) position to the left.

List DE and FE Dual Voltage Distribution Panel

Before

After

From the front, remove the polarity labels for the positions reassigned and turn the label over so the other polarity shows. See Detail A.
From the front, remove the voltage barrier shield from the right-most EXISTING sub-system distribution position and place it in the right-most NEW sub-system distribution position. See Detail B.

List DE and FE Only: Move the CBA/FA alarm strap at the desired point of the voltage division to the location above the relocated +24V or -58V Input Power Busbar.
List DE and FE Only: Move the Shorting Bus at the desired point of the voltage division to the far right position.

Move Shorting Bus Here

Move CBA/FA Alarm Strap Here
6-19 x 1/2 Screw Torque to 9.6 in-lbs.

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

1/4-20 x 5/8 Bolt

Move

1/4″ Lock Washer

+24V or -58V Input 1/4″ Flat Washer

Power Bus Here Torque to 75 in-lbs.

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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual

Figure 4.5 Reworking the Distribution Panel (cont’d from previous page, cont’d on next page)

List DF, DG, DH, DJ FF, FG, FH, FJ Dual Voltage Distribution Panel (DF Shown, Others Similar)

Before

After

From the front, remove the polarity labels for the positions reassigned and turn the label over so the other polarity shows. See Detail A.
From the front, remove the voltage barrier shield from the right-most EXISTING sub-system distribution position and place it in the right-most NEW sub-system distribution position. See Detail B.

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

Input Power Busbar Not Shown
Move Shorting Bus Here

Move CBA/FA Move CBA/FA Alarm Strap Alarm Strap Here Here
6-19 x 1/2 Screw Torque to 9.6 in-lbs.

Input Power Busbar Not Shown
Move Shorting Bus Here

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

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

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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual

Figure 4.5 Reworking the Distribution Panel (cont’d from previous page, cont’d on next page)

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

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

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

1/4-20 x 5/8 Bolt 1/4″ Lock Washer 1/4″ Flat Washer Torque to 75 in-lbs.
All Except List DE: Move the Shorting Bus Stored Here to the Open Position

Ensure the Subsystem Busbar is Installed in
this Position

Modified Panel View

Move CBA/FA Alarm Strap TO Here
6-19 x 1/2 Screw Torque to 9.6 in-lbs.

Move CBA/FA Alarm Strap FROM Here
Before Modification View: An Alarm Strap is Stored Here
Note that if you reconfigure a distribution panel for all subsystem voltage (List DK and FK), you must disconnect and insulate the system CBA/FA lead attached here.

After Modification View: The Alarm Strap is Moved Here
Note that if you reconfigure a distribution panel for all system voltage, you must disconnect and insulate the subsystem CBA/FA lead attached here.

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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
Figure 4.5 Reworking the Distribution Panel (cont’d from previous page)
Detail A

Front

For reassigned distribution positions…

1. Remove polarity label plug buttons.

Barrier (Voltage Divider)

2. Remove polarity label. 3. Turn over polarity label so other polarity shows. 4. Replace polarity label.

For the Barrier (Voltage Divider) position…

5. Replace polarity label plug buttons.

1. Remove the Barrier (Voltage Divider).

2. Install the Barrier (Voltage Divider) on the reconfigured panel

where it separates -48V and +24 or -58V busbars.

Detail B

Sub-System System Voltage Voltage

Old Location Voltage Barrier Shield

New Location Voltage Barrier Shield

Load Lug

Load Lug

Front 18

For right-most reassigned sub-system distribution position… 1. Remove the load lug from the right-most
EXISTING sub-system distribution position. 2. Replace the load lug from the right-most EXISTING sub-system
distribution position WITHOUT the voltage barrier shield. 3. Remove the load lug from the right-most
NEW sub-system distribution position. 4. Replace the load lug from the right- most NEW sub-system
distribution position WITH the voltage barrier shield.

VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
4.3.3 Replacing the Distribution Panel
NOTE! In the following procedure, before making busbar-to-busbar connections, apply a thin coating of electrical antioxidizing compound to the mating surfaces of the busbars. Procedure NOTE! If the panel is re-configured for all subsystem positions (List DK or FK), the distribution cabinet’s load side busbar must be removed since it is not to be connected to the distribution panel and will cause interference. Note that the busbar that is removed should be retained in the event that the panel is re-configured at a later date to revert back to a panel with some subsystem positions. 1. If the panel is re- configured for all subsystem positions, remove the distribution cabinet’s load side busbar. Save this busbar and hardware for future use. 2. Orient the distribution panel into the distribution cabinet, checking to ensure no wires are pinched. Replace the hardware securing the distribution panel to the distribution cabinet. Refer to Figure 4.4 for hardware build-up. Torque as indicated in Figure 4.4. 3. Reconnect the +24V or -58V jumper leads. Refer to Figure 4.4 for hardware build-up. Torque as indicated in Figure 4.4. For a panel re-configured to all -48V positions, the +24V or -58V jumper leads MUST not be used. They should be retained at the site for future use if necessary. 4. In all except panels re-configured for all subsystem positions (List DK or FK), replace the hardware securing the distribution panel’s system load distribution busbar to the distribution cabinet’s busbar. Refer to Figure 4.4 for hardware build-up. Torque as indicated in Figure 4.4. 5. Replace the hardware securing the distribution panel’s ground busbar to the distribution cabinet’s busbar. Torque as indicated in Figure 4.4. 6. Plug the in-line FA/CBA connector located near the back of the distribution panel into the mating connector half in the distribution cabinet. Refer to Figure 4.4. WARNING! In the next step, observe correct polarity; otherwise equipment damage will result.
7. Reconnect the load return leads to the ground busbar. 8. Reconnect the load leads to the circuit breaker and/or fuse positions. 9. Replace the circuit breakers and/or fuseholders. 10. Replace the plastic shield covering the circuit breakers and/or fuseholders on the distribution panel. 11. Verify no circuit breaker/fuse alarms are active. 12. Close the distribution cabinet’s front door. Turn the latch clockwise to secure the door. 13. Ensure that there are no local or remote alarms active on the system.
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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
5 Troubleshooting and Repair
5.1 Contact Information
Refer to Section 4154 (provided with your customer documentation) for support contact information.
5.2 Controller, Rectifiers, and Converters
For troubleshooting and repair 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)
5.3 Controller Configuration
If any controller configuration settings were changed, refer to the NCU Controller Instructions (UM1M830BNA) and save a copy of the configuration file. This file can be used to restore the controller settings, if required, at a later date.
· Note that provided on a USB drive furnished with the system is a controller configuration drawing (C-drawing) and the controller configuration files loaded into the controller as shipped.
5.4 System Troubleshooting Information
This system is designed for ease in troubleshooting and repair. The various indicators as described in “Local Controls and Indicators” on page 5 and in the controller, rectifier, and converter instructions are designed to isolate failure to a specific element. Once the faulty element has been identified, refer to “Replacement Information” on page 21 and “Replacement Procedures” on page 21.
Troubleshooting Alarm Conditions on the Controller
The controller displays alarm conditions as listed in the “Resolving Alarms” section of the controller’s User Manual. Programmable external alarm relays are also available. Refer to the System Installation Instructions (IM582127000100) and the configuration drawing (C-drawing) supplied with your power system documentation for your alarm relay configurations.
The controller’s Active Alarm and Alarm History submenus allow the User to view alarm details. Refer to the NCU Controller Instructions (UM1M830BNA) to access these menus.
Checking the Controller’s Current Limit Point after Adding or Removing a Rectifier Module
If a rectifier module is added to the power system, the system current limit point will automatically increase by the percentage each existing rectifier was set to provide prior to the addition.
If a rectifier module is removed from the system (and the Rect Comm Fail alarm is reset), the current limit point will remain unchanged unless the capacity of the remaining rectifiers is not sufficient to maintain the present current limit point. If that happens, the current limit point will automatically increase to the maximum (121% of the remaining rectifiers).
It is recommended that the current limit point be checked whenever a rectifier module is added to or removed from the power system.
When setting total rectifier current limit, the set point to each rectifier is the total set point divided by the number of rectifiers. For example, if the system contains five rectifiers and the current limit is set to 150 amps then each rectifier has a current limit set point of 30 amps. If one or more rectifiers are removed or fail it will take several seconds for the individual set points to the remaining rectifiers to be reset. In the example given, if one rectifier is removed the current limit set point will drop to 120 amps (30 amps times four remaining rectifiers) until the controller can send updated set points to the remaining rectifiers.
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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
This takes a couple communication cycles (several seconds) after which each rectifier would have a new set point of 37.5 amps for a total of 150 amps. The total current limit of the rectifiers should not be set such that the loss of the redundant rectifiers will cause this temporary set point to drop below the actual maximum expected load. If batteries are used on the rectifier output, the batteries should support the load until the current limit set points can be re-established due to loss of a rectifier. Refer to the NCU Controller Instructions (UM1M830BNA) for a procedure.
Clearing a Rectifier Communications Fail Alarm after Removing a Rectifier
If a rectifier module is removed from the system, a rectifier communications failure alarm is generated. If the rectifier module will not be replaced, the alarm should be cleared. Refer to the NCU Controller Instructions (UM1M830BNA) for a procedure.
Clearing a Converter Communications Fail Alarm after Removing a Converter
If a converter module is removed from the system, a converter communications failure alarm is generated. If the converter module will not be replaced, the alarm should be cleared. Refer to the NCU Controller Instructions (UM1M830BNA) for a procedure.
Clearing a Rectifier Lost Alarm
If the controller resets while a rectifier communications fail alarm is active, the rectifier communications fail alarm is replaced with a rectifier lost alarm. Refer to the NCU Controller Instructions (UM1M830BNA) for a procedure to clear the alarm.
Clearing a Converter Lost Alarm
If the controller resets while a converter communications fail alarm is active, the converter communications fail alarm is replaced with a converter lost alarm. Refer to the NCU Controller Instructions (UM1M830BNA) for a procedure to clear the alarm.
5.5 Replacement Information
Replacement Assemblies
When a trouble symptom is localized to a faulty rectifier module, converter module, controller, or system circuit card; that particular device or circuit card should be replaced in its entirety. No attempt should be made to troubleshoot or repair individual components on any rectifier module, converter module, controller, or circuit card. Refer to SAG582127000 (System Application Guide) for replacement part numbers.
5.6 Replacement Procedures
DANGER! Adhere to the “Important Safety Instructions” presented at the front of this document.
5.6.1 Replacing a Rectifier or Converter Module
Refer to the Rectifier User Instructions (UM1R482000e3) or Converter User Instructions (UM1C48241500) for a rectifier and converter module replacement procedure. Refer also to “System Troubleshooting Information” on page 20. The rectifier or converter module being replaced is assigned by the controller the lowest available identification number. If desired, you can change the identification number. Refer to the NCU Controller Instructions (UM1M830BNA) for a procedure.
5.6.2 Replacing the NCU Controller
Refer to the NCU Controller Instructions (UM1M830BNA) for a controller replacement procedure.
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5.6.3 Replacing a Distribution Device
General
Replace distribution devices with the same type and rating. Refer to System Application Guide SAG582127000 for part numbers.
Distribution Fuse “Alarm Fuse” Replacement
If a distribution fuse opens, the associated alarm fuse opens. Replace the distribution fuse before replacing the alarm fuse.
Procedure 1. An alarm fuse is removed by pulling it straight out of the fuseholder. If the alarm fuse is located in a modular fuse carrier, hold the fuse carrier in place with your thumb while pulling on the alarm fuse to prevent the entire carrier from inadvertently being pulled out.
2. Safety fuse covers are provided for all Bussmann GMT type fuses installed in the system. These covers snap onto the fuses and provide protection from exposed electrical terminations when a fuse opens. Insure that the safety fuse cover is installed after replacing a fuse. Refer to Figure 5.1 for installation details.

Figure 5.1 Installation of Safety Fuse Covers
Safety Cover P/N 248898700
(GMT-X)

Safety Cover P/N 102774
(GMT-Y)

Replacing a TPS/TLS Fuse
Procedure NOTE! Refer to Figure 5.2 as this procedure is performed.
1. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position. 2. Remove the fuse carrier from the mounted fuseholder body by pulling it straight out. Hold the fuseholder body while you pull
the fuse carrier from the body. 3. Remove the open fuse from the fuse carrier and replace it with the same type and rating. 4. Replace the alarm fuse located in the front of the fuse carrier with the same type and rating. Ensure that a plastic safety
cover is installed on the alarm fuse. 5. Push the fuse carrier securely back into the mounted fuseholder body. Note that a polarizing key on the bottom of the
carrier prevents the carrier from being inserted upside down. 6. Verify no Fuse Alarms are active.
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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual

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

Replacing a Bullet Nose Fuseholder
Procedure NOTE! Refer to Figure 5.2 as this procedure is performed.

1. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position.
2. Remove the fuse carrier from the mounted fuseholder body by pulling it straight out. Hold the fuseholder body while you pull the fuse carrier from the body.

3. Gently rock the defective fuseholder up and down while pulling firmly outward until the fuseholder is free from the distribution panel.
4. Orient the replacement fuseholder as shown in Figure 5.2. Insert the terminals on the rear of the fuseholder into their corresponding sockets on the distribution panel. Ensure the alarm contact on the back of the fuseholder makes contact with the alarm terminal on the spring strip. Push fuseholder in firmly until fully seated in the distribution panel.
5. Push the fuse carrier securely back into the mounted fuseholder body. Note that a polarizing key on the bottom of the carrier prevents the carrier from being inserted upside down.
6. Verify no Fuse Alarms are active.
7. Close the distribution cabinet’s front door. Turn the latch clockwise to secure the door.
Figure 5.2 Replacing a TPS/TLS Fuseholder and/or Fuse

Fuseholder Assembly Exploded View

Fuseholder Body

GMT-X Safety Fuse Cover
(Replacement P/N 248898700)

TPS/TLS Fuse Fuse Carrier

Fuseholder Assembly
Shorter Side to the Top
Insert these terminals into corresponding sockets on distribution panel.

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

Polarizing Keyway Matches Key on Bottom of Fuse Carrier

Longer Side to the Bottom

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

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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual

Replacing a Bullet Nose Circuit Breaker
Procedure NOTE! Refer to Figure 5.3 as this procedure is performed.
1. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position. 2. Operate the defective circuit breaker to the OFF position.
3. Gently rock the defective circuit breaker up and down while pulling firmly outward until the breaker is free from the distribution panel.
4. Ensure that the circuit breaker is in the OFF position, and is of the correct rating. 5. Orient the replacement circuit breaker as shown in Figure 5.3. Insert the terminals on the rear of the circuit breaker into their
corresponding sockets on the distribution panel. Ensure the alarm contact on the back of the circuit breaker makes contact with the alarm terminal on the spring strip. Push distribution device in firmly until fully seated in the distribution panel. 6. Operate the replacement circuit breaker to the ON position. 7. Verify no Circuit Breaker Alarms are active. 8. Close the distribution cabinet’s front door. Turn the latch clockwise to secure the door.

Figure 5.3 Replacing a Bullet Nose Circuit Breaker

Lettering on handle must be right side up.
Turn off before installing.

Shorter Side to the Top

Insert these terminals into corresponding sockets on distribution panel.

Longer Side to the Bottom
5.6.4 Replacing a Distribution Panel (List AL, DJ, FG, and FK)
DANGER! Performing the next steps exposes service personnel to battery potential. Exercise extreme caution not to inadvertently contact or have any tool inadvertently contact any energized electrical termination.
Procedure
NOTE! Refer to Figure 4.4 as this procedure is performed.

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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
Removing the Distribution Panel 1. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position. 2. Remove the plastic shield covering the circuit breakers or fuseholders on the panel to be removed by loosening the screws holding the shield and sliding the shield upwards. 3. Disconnect and insulate all load wiring from the circuit breaker or fuse positions. 4. Remove all load return wiring from the ground busbar. 5. Locate the in-line FA/CBA connector located near the back of the panel, and separate the connector halves. 6. Refer to Figure 4.4 and remove the hardware securing the panel’s Ground Busbar to the distribution cabinet’s busbar. 7. Refer to Figure 4.4 and remove the hardware securing the panel’s System Load Distribution busbar to the distribution cabinet’s busbar. 8. For dual voltage load distribution panels, refer to Figure 4.4 and remove the hardware securing the +24V or -58V jumper leads. 9. Refer to Figure 4.4 and remove the hardware securing the distribution panel to the distribution cabinet. Remove the panel from the distribution cabinet.
Installing the Distribution Panel NOTE! In the following procedure, before making busbar-to-busbar connections, apply a thin coating of electrical antioxidizing compound to the mating surfaces of the busbars.
1. Orient the replacement distribution panel into distribution cabinet, checking to ensure no wires are pinched. Replace the hardware securing the distribution panel to the distribution cabinet. Torque per Figure 4.4.
2. For dual voltage load distribution panels, replace the hardware securing the +24V or -58V jumper leads. Torque per Figure 4.4.
3. Replace the hardware securing the panel’s System Load Distribution busbar to the distribution cabinet’s busbar. Torque per Figure 4.4.
4. Replace the hardware securing the panel’s Ground Busbar to the distribution cabinet’s busbar. Torque per Figure 4.4. 5. Locate the in-line FA/CBA connector located near the back of the panel, and plug it into the mating connector half in the
distribution cabinet. WARNING! In the next step, observe correct polarity; otherwise equipment damage will result.
6. Reconnect the load return wiring to the ground busbar. 7. Reconnect the load wiring to the circuit breaker or fuse positions. 8. Transfer the plug-in circuit breakers or fuses from the old panel to the replacement panel. 9. Replace the plastic shield covering the circuit breakers or fuseholders on the replacement panel. 10. Verify no Circuit Breaker/Fuse Alarms are active. 11. Close the distribution cabinet’s front door. Turn the latch clockwise to secure the door.
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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
5.6.5 Circuit Card Replacement Procedures
WARNING! Circuit cards used in this power system contain static-sensitive devices. Read the Static Warning at the front of this document before performing any of the following procedures.
General
The following circuit card replacement procedures can be performed with the system operating. Refer to Figure 3.1 for circuit card locations.
CAUTION! When performing any step in these procedures that requires removal or installation of hardware, use caution to ensure no hardware is dropped and left inside the cabinet; otherwise service interruption or equipment damage may occur.
NOTE! When performing any step in these procedures that requires removal of existing hardware, retain all hardware for use in subsequent steps. 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.
System Interface Board Replacement
Refer to Figure 3.1 for circuit card location. Procedure
1. Performing this procedure may activate external alarms. Do one of the following. If possible, disable these alarms. If these alarms cannot be easily disabled, notify the appropriate personnel to disregard any future alarms associated with this system while the procedure is being performed. DANGER! Performing the next steps exposes service personnel to battery potential. Exercise extreme caution not to inadvertently contact or have any tool inadvertently contact any energized electrical termination.
2. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position. WARNING! Damage to the circuit card may result if the next step is not followed.
3. Connect an approved grounding strap to your wrist. Attach the other end to a suitable ground. 4. Remove the shield to access the circuit cards at the bottom of the distribution cabinet. 5. Carefully label the connectors plugged into the circuit card. These connectors must be plugged into the same connectors on
the replacement circuit card. Refer to Figure 5.4. 6. Unplug all connectors plugged into the circuit card. 7. Remove the screws securing the circuit card and remove the circuit card from the distribution cabinet. 8. In this step, ensure you do not intermix the old and replacement circuit cards. Set the shorting jumper on the replacement
circuit card to match the location on the old circuit card. Jumper settings are documented in the “Setting Jumpers and Switch Options” section of the Power System Installation Instructions (IM582127000100). 9. Slide the replacement circuit card into the mounting position inside the distribution cabinet, and secure with the screws removed from the old circuit card. 10. Plug all connectors removed from the old circuit card into the same position on the replacement circuit card. 11. Remove the grounding wrist strap.
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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual

12. Reinstall the shield that covers the circuit cards at the bottom of the distribution cabinet. 13. Close the distribution cabinet’s front door. Turn the latch clockwise to secure the door. 14. Enable the external alarms, or notify appropriate personnel that this procedure is finished. 15. Ensure that there are no local or remote alarms active on the system.

Figure 5.4 System Interface Board Connector Locations

F2 F1
562662
K4
CR4 R9
R8

CR1 CR3

R14 R16 R18

J1

J4

(System Interconnects) (System Interconnects)

J1 J4

1

R15

TB1

2

K3

K2

J6

TB1 Wire Size Capacity: 14AWG to 30AWG Recommended Torque: 0.28Nm or 2.48 in- lb FA Signals: System voltage applied to the terminal turns in an alarm. TB1-1: Bat Tray FA TB1-2: Bat Rack FA
J6 (System Temp 2)

R5

R11

R10

K1

J5

J5 (System Temp 1)

R2 R1 R3 R4 CR2
TP1

R6

R12

J3

R13

S1

123

C1

AXXXXXXXX

DS1

000XXXXX

TP2 R7

J2

NCU CAN Port

H1

TP1 (-) and TP2 (+) System Voltage

J3 Selects to power Controller from “Battery Power” or not if the battery disconnect contactor opens.
No Battery Battery Shorting Jumper Pwr Pwr
J3
123

CAN termination plug P/N 548398 must be installed if an external device is not connected to the system.

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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
IB2 (Controller Interface Board) and Optional EIB (Controller Extended Interface Board) Replacement
Refer to Figure 3.1 for circuit card location.
Procedure 1. Performing this procedure may activate external alarms. Do one of the following. If possible, disable these alarms. If these alarms cannot be easily disabled, notify the appropriate personnel to disregard any future alarms associated with this system while the procedure is being performed. DANGER! Performing the next steps exposes service personnel to battery potential. Exercise extreme caution not to inadvertently contact or have any tool inadvertently contact any energized electrical termination.
2. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position. WARNING! Damage to the circuit card may result if the next step is not followed.
3. Connect an approved grounding strap to your wrist. Attach the other end to a suitable ground. 4. Remove the shield to access the circuit cards at the bottom of the distribution cabinet. 5. Carefully label the wires connected to the customer connection terminal blocks on the circuit card. These wires must be
connected to the same terminals on the replacement circuit card. Refer to Figure 5.5 or Figure 5.6. 6. Carefully label the connectors plugged into the circuit card. These connectors must be plugged into the same connectors on
the replacement circuit card. Refer to Figure 5.5 or Figure 5.6. DANGER! In the next step, external alarm wiring may be energized from an external source. DO NOT allow bare wire ends to contact any grounded or energized object.
7. Remove the external wiring from the customer connection terminal blocks. DO NOT allow the bare wire end to contact any grounded or energized object. Isolate the wire end with electrical tape. Repeat for each wire to be removed.
8. Unplug all connectors plugged into the circuit card. 9. Remove the screws securing the circuit card and remove the circuit card from the distribution cabinet. 10. In this step, ensure you do not intermix the old and replacement circuit cards. Set the switch on the replacement circuit card
to the same setting as the old circuit card. Switch settings are documented in the “Setting Jumpers and Switch Options” section of the Power System Installation Instructions (IM582127000100). 11. Slide the replacement circuit card into the mounting position inside the distribution cabinet, and secure with the screws removed from the old circuit card. 12. Plug all connectors removed from the old circuit card into the same position on the replacement circuit card. DANGER! In the next step, external alarm wiring may be energized from an external source. DO NOT allow bare wire ends to contact any grounded or energized object.
13. Reconnect the external wiring to the correct terminals on the customer connection terminal block. First remove the electrical tape that was applied to the bare wire end in a previous step. DO NOT allow the bare wire end to contact any grounded or energized object. After securing the wire, gently tug on the wire to ensure that it cannot be pulled out of the terminal block. Repeat for each wire to be reconnected.
14. Remove the grounding wrist strap. 15. Close the distribution cabinet’s front door. Turn the latch clockwise to secure the door. 16. Reboot the Controller
Local Menu Navigation: At the Main Screen, press ENT and ESC at the same time to reset the NCU Controller. Web Menu Navigation: Go to Advance Settings Menu / SW Maintenance Tab / Reboot Controller button. 17. Enable the external alarms, or notify appropriate personnel that this procedure is finished.
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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
18. Ensure that there are no local or remote alarms active on the system. Figure 5.5 IB2 (Controller Interface Board) Connector Locations
IB2 (Interface Board) (Top View)

to Controller

Connector

IB2 TEMP PROBE 1

PROBE 2

IB2 TEMP

J2

J11

J12

• 642 642 642
  87 654 3 21

–
531 531 531

J3

J4

Digital Input Terminal Blocks

J5

2

642 642 642 642

531 531 531 531 NO C NC NO C NC NO C NC NO C NC

NO C NC NO C NC NO C NC NO C NC

Relay Output Terminal Blocks

1

J6

IB2 (Interface Board)

RELAY

4

3

J7

SW1

6

5

J8

8

7

J9

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

Figure 5.6 Optional EIB (Controller Extended Interface Board) Connector Locations
EIB (Extended Interface Board) (Top View)

J9

J8

J7

J6

J5

SW1

1 2

OFF ON

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

J2

J3

J4

EIB Temp Probe 1
EIB Temp Probe 2
Connector to Controller

EIB (Extended Interface Board)

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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
5.6.6 Replacing a Battery Disconnect Contactor
DANGER! All sources of AC and DC power must be completely disconnected from this power system before performing this procedure. Use a voltmeter to verify no DC voltage is present on the system busbars before proceeding. NOTE! In the following procedure, before making busbar-to-busbar connections, apply a thin coating of electrical antioxidizing compound to the mating surfaces of the busbars.
Procedure
NOTE! Refer to Figure 5.7 as this procedure is performed.
Removing the Contactor 1. Verify all AC and DC power sources are disconnected from the power system. 2. Remove the distribution cabinet’s rear access panel. 3. Disconnect the wiring to the contactor by unplugging the quick disconnects. 4. Note the orientation of the contactor to ensure the replacement is installed the same way. Unbolt the contactor (4-places) and remove. Save all hardware.
Installing the Replacement Contactor 1. Position the replacement contactor oriented the same way as the old. 2. Secure the contactor with the hardware removed above. Refer to Figure 5.7 for hardware build-up and recommended torque. 3. Replace the wiring to the contactor by plugging-in the quick disconnects. Refer to Figure 5.7. 4. Replace the distribution cabinet’s rear access panel.
Restarting the Power System 1. Reconnect the AC and DC power sources to the power system. 2. Start the power system. Refer to the separate Installation Instructions (IM582127000100) for a startup procedure. 3. Verify no alarms are active.
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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
Figure 5.7 Replacing the Battery Disconnect Contactor in the Distribution Cabinet
Shown being removed from front for clarity only. Removal is from rear. Components removed in illustration for clarity only. Apply electrical anti- oxidizing compound to busbar mating surfaces.

Front

Battery Disconnect Contactor
3/8-16 x 1-1/4″ Bolt 3/8″ Belleville Lock Washer (concave side of Belleville lock washer faces flat washer) 3/8″ Flat Washer (4 places) Torque to 180 in- lbs.

Black Wire

Red Wire

Rear

Rear

Violet Wire Black Wire
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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
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VertivTM NetSureTM 7100 Series -48 VDC Power System User Manual
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