Vertiv M830B, M830D User Manual

NetSure™ Control Unit (NCU) Controller

User Manual

Specification Number: 1M830BNA, 1M830DNA Model Number: M830B, M830D

Software Version 1.2.30

Vertiv™ NetSure™ Control Unit (NCU) 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™ Control Unit (NCU) User Manual

iii

TABLE OF CONTENTS

Admonishments Used in this Document ....................................................................................................................... viii

Important Safety Instructions ............................................................................................................................................ ix

Static Warning .......................................................................................................................................................................... x

1 Introduction ......................................................................................................................................................................... 1

1.1 Preface ................................................................................................................................................................................................................................................................................... 1

1.2 Overview ................................................................................................................................................................................................................................................................................. 1

1.3 Function Descriptions ............................................................................................................................................................................................................................................... 2

1.3.1 Rectifier, Solar Converter, and Converter Control ................................................................................................................................................... 2

1.3.2 System Components Monitoring and System Alarms Generation .......................................................................................................... 2

1.3.3 Operating Data Acquisition and Data Logs ................................................................................................................................................................... 3

1.3.4 Battery Management .......................................................................................................................................................................................................................... 4

1.3.5 Energy Management ........................................................................................................................................................................................................................... 8

1.3.6 Power Split Feature .............................................................................................................................................................................................................................. 9

1.3.7 AC Generator Function ..................................................................................................................................................................................................................... 9

1.3.8 Diesel Management Feature ..................................................................................................................................................................................................... 10

1.3.9 Hybrid Control Function (Supporting Generator, Solar and Wind Energy Input, and Optimization) .................... 10

1.3.10 Supervisory Module (SM Modules) Monitoring ...................................................................................................................................................... 14

1.3.11 Maximum Current Limit Function ........................................................................................................................................................................................ 14

1.3.12 Communications Function .......................................................................................................................................................................................................... 14

1.3.13 FIAMM SoNick (Sodium Nickel) battery Interface ................................................................................................................................................15

1.3.14 Radius Server Feature ......................................................................................................................................................................................................................15

2 Operation ............................................................................................................................................................................ 17

2.1 Controller Initialization ........................................................................................................................................................................................................................................... 17

2.2 Local Indicators ........................................................................................................................................................................................................................................................... 18

2.3 Using the Local Keypad and Display ....................................................................................................................................................................................................... 19

2.3.1 Local Menu Navigation Keys and Local Display .................................................................................................................................................... 19

2.3.2 Local Display Menus ........................................................................................................................................................................................................................ 19

2.4 Using the Web Interface ..................................................................................................................................................................................................................................... 20

2.4.1 Overview ..................................................................................................................................................................................................................................................... 20

2.4.2 Multiple Browsers Supported .................................................................................................................................................................................................. 20

2.4.3 Web Interface Screens .................................................................................................................................................................................................................. 20

2.5 Passwords and Privilege Levels .................................................................................................................................................................................................................. 20

2.6 Multiple Languages Supported ................................................................................................................................................................................................................... 20

2.7 Setup Procedures ..................................................................................................................................................................................................................................................... 20

2.7.1 Setting IPv4 Communications Parameters (if controller not set as DHCP) ................................................................................ 20

2.7.2 Setting IPv6 Communications Parameters (if controller not set as DHCPv6) ........................................................................... 21

2.7.3 Setting for DHCP and DHCPv6 .............................................................................................................................................................................................. 21

2.7.4 Connecting the Controller to your Local Area Network (LAN) when the System is NOT Equipped

with an IB4 Board .................................................................................................................................................................................................................................. 21

2.7.5 Connecting the Controller to your Local Area Network (LAN) when the System IS Equipped with an

IB4 Board ..................................................................................................................................................................................................................................................... 22

2.7.6 Connecting a Local Computer Directly to the Controller when the System is NOT Equipped with an

Vertiv™ NetSure™ Control Unit (NCU) User Manual

2.7.7 Connecting a Local Computer Directly to the Controller when the System IS Equipped with an IB4

Board .............................................................................................................................................................................................................................................................. 24

2.7.8 Disabling Proxy Server Settings to Enable a Connection to the Controller over an Intranet Network

(if required) .............................................................................................................................................................................................................................................. 24

2.7.9 Internet Security Settings for Loading Files or Downloading Files into the NCU ................................................................... 25

2.8 Logging into the Controller via Web Interface Access ...........................................................................................................................................................29

2.9 Common Tasks Performed via the Local Keypad and/or Web Interface ............................................................................................................... 31

2.9.1 General ........................................................................................................................................................................................................................................................... 31

2.9.2 Start Wizard ............................................................................................................................................................................................................................................... 31

2.9.3 Reset Admin Password Feature .............................................................................................................................................................................................. 31

2.9.4 Viewing Alarms ....................................................................................................................................................................................................................................... 31

2.9.5 Viewing System Status .................................................................................................................................................................................................................... 31

2.9.6 Viewing the NCU Controller’s Device Inventory ...................................................................................................................................................... 31

2.9.7 Clearing or Resetting Alarms .................................................................................................................................................................................................... 32

2.9.8 Clearing Logs .......................................................................................................................................................................................................................................... 32

2.9.9 Changing the Local LCD Display Orientation ........................................................................................................................................................... 32

2.9.10 Disabling the Local Keypad Sound ..................................................................................................................................................................................... 32

2.9.11 Blocking Alarms .................................................................................................................................................................................................................................... 32

2.9.12 Changing the Date and Time ................................................................................................................................................................................................... 32

2.9.13 Adding, Deleting, and Modifying Users ........................................................................................................................................................................... 33

2.9.14 Setting IP Communications Parameters (if controller not set as DHCP or DHCPv6) ........................................................ 33

2.9.15 Setting for DHCP and DHCPv6 ............................................................................................................................................................................................. 33

2.9.16 Setting SNMP Parameters ......................................................................................................................................................................................................... 34

2.9.17 Setting TL1 Parameters ................................................................................................................................................................................................................ 34

2.9.18 Setting Auto Equalize ..................................................................................................................................................................................................................... 34

2.9.19 Programming the Audible Alarm Feature ..................................................................................................................................................................... 35

2.9.20 Manually Forcing LVDs .................................................................................................................................................................................................................. 35

2.9.21 Manually Forcing Relays ............................................................................................................................................................................................................... 35

2.9.22 Assigning Severity Level to Alarms ................................................................................................................................................................................... 36

2.9.23 Assigning Relays to Alarms ....................................................................................................................................................................................................... 36

2.9.24 Placing the System in Float or Equalize Charge Mode ................................................................................................................................... 36

2.9.25 Viewing/Changing the Float Voltage Setting ........................................................................................................................................................... 36

2.9.26 Viewing/Changing the Equalize Voltage Setting .................................................................................................................................................. 36

2.9.27 Setting Battery Parameters ....................................................................................................................................................................................................... 36

2.9.28 Setting Battery Capacity Parameters .............................................................................................................................................................................. 36

2.9.29 Setting Rectifier High Voltage Shutdown..................................................................................................................................................................... 37

2.9.30 Setting Solar Converter High Voltage Shutdown ................................................................................................................................................. 37

2.9.31 Setting Rectifier Current Limit ................................................................................................................................................................................................ 37

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

Module ........................................................................................................................................................................................................................................................... 37

2.9.33 Enabling Solar Mode .........................................................................................................................................................................................................................38

2.9.34 Setting Over Voltage Alarm 1 ...................................................................................................................................................................................................38

2.9.35 Setting Over Voltage Alarm 2 ..................................................................................................................................................................................................38

2.9.36 Setting Under Voltage Alarm 1 ...............................................................................................................................................................................................38

2.9.37 Setting Under Voltage Alarm 2 ...............................................................................................................................................................................................38

Vertiv™ NetSure™ Control Unit (NCU) User Manual

2.9.38 Setting Temperature Sensors ................................................................................................................................................................................................ 39

2.9.39 Setting Battery Charge Temperature Compensation ...................................................................................................................................... 40

2.9.40 Setting Battery Thermal Runaway Management (BTRM) Feature ..................................................................................................... 40

2.9.41 Configuring the NCU Identification of Rectifiers and Assigning which Input Feed is Connected to the

Rectifiers ...................................................................................................................................................................................................................................................... 41

2.9.42 Configuring the NCU Identification of Solar Converters ................................................................................................................................ 41

2.9.43 Configuring the NCU Identification of Converters ............................................................................................................................................... 41

2.9.44 Setting Digital Inputs ....................................................................................................................................................................................................................... 42

2.9.45 Setting Battery Block and Battery Midpoint Monitoring (if equipped with an EIB Assembly)................................... 42

2.9.46 Setting External Shunts (connected to the EIB Assembly) ........................................................................................................................ 42

2.9.47 Setting External Shunts (connected to the SMDU+ Assembly) ............................................................................................................ 43

2.9.48 Setting Shunts (connected to the SMDU Assembly) ....................................................................................................................................... 43

2.9.49 Setting the SM-DUE Parameters (if furnished)...................................................................................................................................................... 44

2.9.50 Setting the System Current Alarm ..................................................................................................................................................................................... 46

2.9.51 Setting the AC Generator Function ................................................................................................................................................................................... 46

2.9.52 Using the Relay Test Feature ................................................................................................................................................................................................. 46

2.9.53 Clearing the Maintenance Alarm .......................................................................................................................................................................................... 47

2.9.54 Performing a Manual Battery Discharge Test .......................................................................................................................................................... 47

2.9.55 Updating the NCU Controller’s Device Inventory ................................................................................................................................................ 48

2.9.56 Backing Up the NCU Configuration .................................................................................................................................................................................. 48

2.9.57 Reloading a Backed-Up NCU Configuration ............................................................................................................................................................. 48

2.9.58 Upgrading the NCU Using an Application ("All") Package .......................................................................................................................... 49

2.9.59 Restoring Factory Default Configuration ..................................................................................................................................................................... 49

2.9.60 Rebooting the Controller ............................................................................................................................................................................................................. 50

2.9.61 Changing the Names of Items Displayed in the LCD and Web-Interface Menus .................................................................. 50

2.9.62 Upgrading the Rectifiers Firmware .................................................................................................................................................................................... 50

2.10 Power Split Feature ...................................................................................................................................................................................................................................................51

2.10.1 Overview .......................................................................................................................................................................................................................................................51

2.11 FIAMM SoNick (Sodium Nickel) Batteries Interface ................................................................................................................................................................. 57

2.11.1 FIAMM Battery Installation and User Instructions................................................................................................................................................ 57

2.12 TL1 Interface .................................................................................................................................................................................................................................................................. 59

2.12.1 General ......................................................................................................................................................................................................................................................... 59

2.12.2 NCU TL1 Feature ................................................................................................................................................................................................................................ 60

2.13 Machine-to-Machine HTTP Interface ................................................................................................................................................................................................... 60

2.13.1 Description ............................................................................................................................................................................................................................................... 60

2.13.2 Using the Machine-to-Machine HTTP Interface Option ............................................................................................................................... 60

2.13.3 EXAMPLE .................................................................................................................................................................................................................................................. 63

2.14 Resolving Alarms ....................................................................................................................................................................................................................................................... 63

3 Local Display Menus ...................................................................................................................................................... 85

3.1 Overview ............................................................................................................................................................................................................................................................................ 85

3.2 Menus .............................................................................................................................................................................................................................................................................. 85

3.2.1 Factory Default Setpoints ........................................................................................................................................................................................................... 85

3.2.2 Adjustment Range Restrictions ............................................................................................................................................................................................ 85

3.3 Main Menu ........................................................................................................................................................................................................................................................................ 87

Vertiv™ NetSure™ Control Unit (NCU) User Manual

3.4 Controller Information Menu (accessed from the Main Menu) ..................................................................................................................................... 88

3.5 Alarm Menu .................................................................................................................................................................................................................................................................... 89

3.6 Settings Menu .............................................................................................................................................................................................................................................................. 90

3.7 Start Wizard Sub-Menu (accessed from Settings Menu) ................................................................................................................................................... 96

3.8 Input Power Menu ..................................................................................................................................................................................................................................................... 97

3.9 Module Menu ................................................................................................................................................................................................................................................................ 98

3.10 DC Menu ........................................................................................................................................................................................................................................................................... 99

3.11 Battery Menu .............................................................................................................................................................................................................................................................. 100

4 Description of Local Display Menus Programmable Parameters ................................................................... 101

4.1 Settings Menu ............................................................................................................................................................................................................................................................. 101

4.1.1 Maintenance Sub-Menu .............................................................................................................................................................................................................. 101

4.1.2 Energy Saving Sub-Menu .......................................................................................................................................................................................................... 101

4.1.3 Alarm Settings Sub-Menu ........................................................................................................................................................................................................ 102

4.1.4 Rect Settings Sub-Menu ........................................................................................................................................................................................................... 102

4.1.5 Batt Settings Sub-Menu ............................................................................................................................................................................................................. 103

4.1.6 LVD Settings Sub-Menu ............................................................................................................................................................................................................ 105

4.1.7 AC Settings Sub-Menu................................................................................................................................................................................................................ 105

4.1.8 Sys Settings Sub-Menu .............................................................................................................................................................................................................. 106

4.1.9 Comm Settings Sub-Menu ...................................................................................................................................................................................................... 106

4.1.10 Other Settings Sub-Menu ......................................................................................................................................................................................................... 107

5 Web Interface Screens ................................................................................................................................................. 110

5.1 Overview of Web Function .............................................................................................................................................................................................................................. 110

5.2 Homepage ...................................................................................................................................................................................................................................................................... 110

5.3 System Status Information Area ................................................................................................................................................................................................................ 112

5.4 System Specifications Information Area ............................................................................................................................................................................................ 112

5.5 Controller Specifications Information Area ...................................................................................................................................................................................... 112

5.6 Site Information Area ............................................................................................................................................................................................................................................ 112

5.7 Alarms Area ................................................................................................................................................................................................................................................................... 113

5.8 System Status Area ................................................................................................................................................................................................................................................ 114

5.8.1 Power System Tab ........................................................................................................................................................................................................................... 115

5.8.2 Energy Sources Status Tab .................................................................................................................................................................................................... 135

5.8.3 General Status Tab ......................................................................................................................................................................................................................... 136

5.8.4 Custom Input Status Tab ........................................................................................................................................................................................................... 137

5.9 Menu Navigation Area ........................................................................................................................................................................................................................................ 138

5.9.1 Settings Menu...................................................................................................................................................................................................................................... 139

5.9.2 History Log Menu ............................................................................................................................................................................................................................ 160

5.9.3 System Inventory Menu ............................................................................................................................................................................................................. 170

5.9.4 Advanced Settings Menu........................................................................................................................................................................................................... 171

6 Accessing the Controller via a Network Management System (NMS) ........................................................ 228

6.1 General ............................................................................................................................................................................................................................................................................228

6.2 NMS Supported by SNMP Agent .............................................................................................................................................................................................................228

6.2.1 NMS Supported by SNMP v2 ................................................................................................................................................................................................228

6.2.2 NMS Supported by SNMP v3 ................................................................................................................................................................................................228

6.2.3 Parameter Setting in SNMP Manager .......................................................................................................................................................................... 229

Vertiv™ NetSure™ Control Unit (NCU) User Manual

vii

6.3 MIB Installation ......................................................................................................................................................................................................................................................... 230

6.3.1 Installation .............................................................................................................................................................................................................................................. 230

6.3.2 Contents of the Controller’s MIB ....................................................................................................................................................................................... 230

6.4 Accessing the Controller through an NMS .................................................................................................................................................................................... 230

6.4.1 Apply Administrative Privilege ............................................................................................................................................................................................ 230

6.5 ESR Configure ........................................................................................................................................................................................................................................................... 230

7 Accessing the NCU via TL1 ........................................................................................................................................ 237

7.1 Accessing the TL1 Port ..................................................................................................................................................................................................................................... 237

7.1.1 Port Connection ................................................................................................................................................................................................................................. 237

7.1.2 TL1 Port Connection Keep-Alive Feature .................................................................................................................................................................. 237

7.2 TL1 User Session ..................................................................................................................................................................................................................................................... 237

7.2.1 Establishing a Session .................................................................................................................................................................................................................. 237

7.2.2 TL1 Autonomous Messages ................................................................................................................................................................................................... 237

7.3 TL1 Port Configuration...................................................................................................................................................................................................................................... 238

7.4 TL1 Commands, Autonomous Messages, and Error Codes Supported by the NCU .............................................................................. 238

7.4.1 Format Overview of Required TL1 Messages ....................................................................................................................................................... 238

7.4.2 Samples .................................................................................................................................................................................................................................................... 240

7.4.3 Table of TL1 Commands Supported ............................................................................................................................................................................. 242

7.4.4 Expanded Description of TL1 Commands Supported (in alphabetical order) ....................................................................... 243

7.4.5 TL1 Autonomous Messages Supported (in alphabetical order) .......................................................................................................... 251

7.4.6 List of Error Codes for TL1 Commands Supported (in alphabetical order) ............................................................................... 255

8 Replacement Procedures ........................................................................................................................................... 256

8.1 NCU Replacement ................................................................................................................................................................................................................................................. 256

9 NCU Digital Input and Relay Output Connections .............................................................................................258

9.1 NCU Digital Input Connections ................................................................................................................................................................................................................. 258

9.2 NCU Relay Output Connections .............................................................................................................................................................................................................. 258

9.3 IB2 (Controller Interface Board) and EIB (Controller Extended Interface Board) ..................................................................................... 258

10 Specifications ................................................................................................................................................................ 260

Vertiv™ NetSure™ Control Unit (NCU) User Manual

viii

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

! 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

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™ Control Unit (NCU) 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 viii.

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.

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”.

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.

Vertiv™ NetSure™ Control Unit (NCU) 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.

Vertiv™ NetSure™ Control Unit (NCU) User Manual

1 Introduction

1.1 Preface

These instructions describe the complete functionality of the Vertiv™ NetSure™ Control Unit (NCU). Some functionality is dependent on hardware connected to the NCU. Your system may not utilize all the functionality described.

Refer also to the NCU Configuration Drawing (C-drawing) furnished with your system for a list of factory default settings.

1.2 Overview

The NCU performs the following functions:

• Rectifier Control, including an Energy Optimization Mode

• Solar Converter and Converter Control

• System Components Monitoring and System Alarms Generation (including recording alarms in logs)

• Operating Data Acquisition and Data Logs

• Battery Management

• Energy Management via Energy Optimization Mode

• Power Split Feature

• AC Generator Function

• Diesel Management Feature

• Hybrid Control Function (Supporting Generator, Solar and Wind Energy Input, and Optimization).

• Supervisory Module (SM Modules) Monitoring

• Maximum Current Limit Function

• Communications Function

• FIAMM SoNick (Sodium Nickel) Battery Interface

• Radius Server Feature

The NCU controls the system automatically via configured parameters.

A User can interface with the NCU locally using the local keypad and display or locally/remotely using the Web Interface.

The NCU can also be accessed via SNMP (v2 and v3) or TL1 (over Ethernet). A machine-to-machine HTTP interface is also available.

Figure 1.1 illustrates the various applications that can be used to interface with the NCU.

Vertiv™ NetSure™ Control Unit (NCU) User Manual

Figure 1.1 Interfacing with the NCU

1.3 Function Descriptions

1.3.1 Rectifier, Solar Converter, and Converter Control

The NCU controls rectifiers, solar converters, and converters automatically.

ALERT! The NCU can be equipped in a system that can either have +24V DC-DC converters installed or -58V DC-DC

1.3.2 System Components Monitoring and System Alarms Generation

The NCU monitors the components comprising the system (such as the rectifiers, solar converters, converters, and supervisory modules) and generates alarms if a fault condition occurs. The NCU also maintains an alarm history log.

The available system alarms are programmed with an Alarm Severity Level. Each Alarm Severity Level has different visual/audible alarm attributes. Available Alarm Severity Levels and their attributes are listed in Table 1.1.

NOTE!

Solar Mode has to be enabled for NCU control of solar converters (see “Enabling Solar Mode” on page 38).

converters installed. The system cannot have both types of converters installed at the same time.

Vertiv™ NetSure™ Control Unit (NCU) User Manual

The available system alarms can also be mapped to alarm relays (located on controller interface boards) that can be wired to external alarm circuits.

Table 1.1 Alarm Severity Levels

Alarm

Severity Levels

Critical Alarm (CR) ON -- ON

Major Alarm (MJ) ON -- ON

Minor Alarm (MN) OFF ON OFF

No Alarm (NA) OFF OFF OFF

Red LED

Yellow

LED

Audible

Alarm Buzzer

• Alarm Status Setting: Indicates if the alarm is active or not active, and the severity level

if active. The available alarm status settings are as follows.

- Critical Alarm: The fault endangers the power systems continued function.

- Major Alarm: The fault reduces the power systems functionality.

- Minor Alarm: Special operating condition.

- No Alarm: The alarm is disabled and no alarm is given.

• The alarm indicator turns OFF if the fault(s) that triggered the alarm clears.

• The audible alarm can be silenced by pressing any key on the NCU local interface pad.

The audible alarm is also silenced if the fault(s) that triggered the alarm clears.

• An audible alarm cutoff feature can be programmed that silences the audible alarm after a

preset programmable time period. The audible alarm can also be disabled.

1.3.3 Operating Data Acquisition and Data Logs

The NCU acquires and analyses real time data from the system's components such as the rectifiers, converters, and supervisory modules.

The NCU uses this data to process alarms and also records data in logs. The logs are viewed using the Web Interface and consists of the following. Logs can be saved in the .html (Web page) or .txt (text) format.

Data History Log/Event Log/Alarm History Log: There is a maximum of 60,000 data points recorded between these logs.

• Alarm History Log: Records 4000 latest alarms. The Web Interface displays the latest 500 items.

• Battery Test Log: Up to ten (10) battery discharge tests can be recorded.

• Event Log: Records 4000 latest events. The Web Interface displays the latest 500 items.

• Data History Log: The Web Interface displays the latest 500 items, and you can upload a file with up to the latest 6,000

items in a single date range. Use multiple date ranges to upload more than 6,000 items.

• System Log: Records 3000 items in run log. The Web Interface displays the latest 500 items.

• Diesel Test Log: Records 500 latest diesel test results.

NOTE!

For all logs except the

Battery Test Log

, once maximum number of log entries is reached, new entries overwrite the

oldest entries.

Vertiv™ NetSure™ Control Unit (NCU) User Manual

1.3.4 Battery Management

The NCU provides the following battery management functions.

• Battery Charge Temperature Compensation

• Battery Equalize Charge

• Battery Charge Current Limit

• High and Low Battery Temperature Alarms

• Battery Thermal Runaway Management (BTRM) Feature (Reduces Voltage during a High Battery Temperature Condition)

• Battery Discharge Test

• Battery Test Logs (maximum ten [10] tests saved)

• Battery LVD (Low Voltage Disconnect)

• Battery Capacity Prediction

• Battery Block and Battery Midpoint Monitoring

• Thermal Runway Detection and Management

NOTE!

Battery management functions are not available for NCU configurations that enable NCU capability to receive status

information sent from FIAMM SoNick (Sodium Nickel) batteries.

Battery Charge Temperature Compensation

The NCU can be programmed to automatically increase or decrease system output voltage to maintain battery float current as battery temperature decreases or increases, respectively. Battery life can be extended when an optimum charge voltage to the battery with respect to temperature is maintained. Temperature is monitored by a sensor mounted on the battery. See your power system documentation for temperature sensor information. You can also set high and low compensation temperature alarms.

Functional Description (See Figure 1.2

Battery charge temperature compensation adds a correction term, related to the temperature of the batteries, to the nominal value of the system voltage. The degree of regulation (TempComp Coeff), expressed in mV/°C/battery string, can be set per battery manufacturer recommendations.

To protect batteries and voltage-sensitive loads, compensation is automatically limited to a maximum of two volts (48V systems) or one volt (24 volt systems) above or below the nominal output level (float setting). Temperature compensation can be set to clamp lower than this by enabling the Temperature Compensation Clamp feature. When enabled, temperature compensation will clamp if the battery temperature reaches either the Temp Comp Max Voltage setting or the Temp Comp Min Voltage setting.

Temperature compensation is automatically disabled if communication between the controller and all rectifiers is lost, a DC over or under voltage alarm activates, a low voltage disconnection occurs, manual mode is entered, or the system enters the equalize or test modes.

Refer to “Specifications” on page 260 for temperature probe and reading accuracy.

Figure 1.2 Temperature Compensated Voltage Control

g (

°C

nom

high

low

Upper voltage level where temperature compensation clamps the voltage. Limited to the TEMP COMP MAX V setting.

Nominal voltage (voltage at nominal temperature).

Lower voltage level where temperature compensation clamps the voltage. Limited to the TEMP COMP MIN V setting.

Nominal temperature (no temperature compensation is done at this temperature). This is the Temp Comp setting.

1V Max (24V System) 2V Max (48

V System)

1V Max (24V System) 2V Max (48V System)

Vertiv™ NetSure™ Control Unit (NCU) User Manual

Battery Equalize Charge and Battery Charge Current Limit

The NCU can increase system output voltage for equalizing the charge on all battery cells of a conventional flooded cell battery, or for recharging the battery following a commercial power failure.

The charging function can be initiated cyclically (scheduled), automatically, or manually.

Refer to the battery manufacturer's instructions for equalize charging instructions.

Functional Description (See Figure 1.3

• Start of Charging: When the battery charge current exceeds a preset value for three (3) minutes or if the calculated battery

capacity has decreased to a preset value (after a commercial AC failure, for example), the charging function of the NCU is activated. A charging signal is sent from the NCU to the rectifiers to increase the voltage up to the battery charging level V

equalize

• Battery Current Limitation: 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 NCU limits 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. Battery charge current is limited to the value set in the controller, as long as battery voltage is above 47 VDC.

• End of Charging: When the charging current drops below a preset value, a defined prolonged charging time is started

before the charging is stopped and the voltage of the rectifiers return to the float charging level (V equalized charging limit time that stops the charging after a preset time.

). For safety, there is an

nom

Figure 1.3 Voltage Characteristics on Commercial AC Failure and Automatic Equalize Charging

Vertiv™ NetSure™ Control Unit (NCU) User Manual

High and Low Battery Temperature Alarms

The NCU can monitor battery temperature via a temperature sensor mounted on a battery cell. Values for high battery temperature and low battery temperature alarms can then be programmed into the NCU.

Battery Thermal Runaway Management (BTRM) Feature

The Battery Thermal Runaway Management (BTRM) feature reduces voltage during a high battery temperature condition.

You can designate a temperature sensor as the BTRM sensor. The BTRM sensor has High 2 and High 1 BTRM temperature alarm limits. If battery temperature exceeds the “BTRM Temp High 2” setting, system voltage is lowered to the BTRM voltage setting. This feature can also be disabled.

Battery Discharge Test and Battery Test Logs

The NCU can perform battery discharge tests to check the condition of the battery(s). There are three (3) types of battery discharge tests:

• Battery Test without Constant Current

• Battery Test with Constant Current

• Short Time Test (requires two battery shunts)

A User can manually start a battery discharge test or program the NCU to automatically start battery discharge tests at scheduled intervals. Twelve (12) Constant Current Tests can be scheduled by the month-day-hour. A Short Time Test can be scheduled to be performed every 1-365 days. During a battery discharge test, the NCU controls the rectifiers output to place the entire load or partial load on the batteries. The NCU monitors the discharge of the battery and saves the results in a battery test log. The NCU stores ten (10) battery discharge tests.

Functional Description:

For manual battery discharge tests as well as for scheduled battery discharge tests, the following parameters must be set: End Test Voltage, End Test Time, and End Test Capacity. See Figure 1.4.

Figure 1.4 Battery Test Diagram

Battery Discharge Test Sequence:

• For a Constant Current Test, the output voltage of the rectifiers is reduced so that the batteries supply the preset Constant

Current Test Current to the load.

• If Constant Current is disabled, then the current being delivered by the batteries will be dependent on the load.

• For a Short Time Test, the output voltage of the rectifiers is reduced so that only the batteries power the load. If the batteries

fail, the rectifiers power the load.

• The battery test continues until one of the following occurs:

- The preset End Test Time, see Figure 1.4, expires. The battery has passed the test.

- The battery capacity drops below the preset End Test Capacity. The battery has passed the test.

Vertiv™ NetSure™ Control Unit (NCU) User Manual

- The battery voltage drops below the preset End Test Voltage (Vend) (see Figure 1.4). The battery has not passed the

test and the test is interrupted. A bad battery alarm is activated.

- If a critical alarm occurs during the test or there’s not enough load, the battery test is aborted. In such cases a “Battery

Test Fail” alarm will be activated (indicating the test couldn’t be done). This alarm is different from the “Bad Battery” alarm (meaning the test was completed but the battery didn’t pass it).

• A battery test alarm is active during a battery discharge test.

• If the battery has not passed the test, a bad battery alarm is activated.

• After the battery discharge test, the output voltage of the rectifiers increases so that the rectifiers supply the system and

charge the batteries.

NOTE!

A procedure for performing a manual battery discharge test is provided on page 47.

Battery LVD (Low Voltage Disconnect)

To prevent serious damage to the batteries during a commercial AC power failure, the batteries can be disconnected by voltage or time control.

The batteries are reconnected automatically when commercial AC power is restored and a predetermined DC voltage level is reached.

See “LVD Tab Programmable Parameter Descriptions” on page 151 for descriptions of programmable LVD parameters.

Battery Capacity Prediction

The NCU can predict battery capacity. When a battery is connected to the system at initial setup or increasing the number of batteries, you need to update the Battery Ah rating. After doing this and making sure the battery is fully charged you need to reset the battery capacity used percentage by performing the “Reset Battery Capacity” command to tell the NCU that the batteries are 100% charged. From this point forward the NCU will keep track of the battery current and time to predict the battery capacity used.

Battery Block and Battery Midpoint Monitoring

The NCU can monitor battery blocks (12 V blocks) or midpoint battery voltage of battery strings connected to the EIB (Controller Extended Interface Board) assembly. An alarm is issued when either battery block voltage or battery midpoint voltage is abnormal.

Thermal Runaway Detection and Management

Functional Description:

The system uses several control mechanisms to avoid thermal runaway.

• During a short high rate discharge, the batteries will normally get hot. The NCU takes this into consideration. After

completion of the discharge duty, the batteries are recharged with a limited current to avoid heating the batteries any further.

• The temperature of the batteries can be monitored, and the NCU sets the charge voltage appropriately, as previously

described under “Battery Charge Temperature Compensation” on page 4.

• In addition to battery temperature compensation, if battery temperature rises above a set temperature limit, the system stops

battery charging completely by lowering the output voltage to the “BTRM Voltage” setting. This allows the batteries to cool down. The system also provides alarm notification of this occurrence. Power supplied to customer equipment is not interrupted. See “Setting Battery Thermal Runaway Management (BTRM) Feature” on page 40 for programming.

• The battery LVD circuits can be programmed to open (disconnect) if a high temperature event occurs (HTD-High

Temperature Disconnect). The contactor(s) open when battery temperature rises above a programmable value and close again when battery temperature falls below another programmable value. See “LVD Tab Programmable Parameter Descriptions” on page 151 for programming.

Vertiv™ NetSure™ Control Unit (NCU) User Manual

1.3.5 Energy Management

Energy Management consists of an Energy Optimization Mode.

Energy Optimization Mode

The NCU provides an Energy Optimization Mode (ECO) function. Energy Optimization permits an installation to only operate rectifiers as needed to maintain the load and keep batteries in a fully charged condition. As load increases, Energy Optimization turns on additional rectifiers as needed to maintain the load. As load decreases, Energy Optimization places rectifiers in standby to conserve energy usage. Rectifiers which are always operating to maintain any load requirements are cycled through the group of rectifiers controlled by this feature to provide uniform operating times for each rectifier.

ALERT! The Energy Optimization Mode should NOT be used in systems that operate without batteries.

The following operating conditions apply:

NOTE!

If the battery is ever disconnected, disable Energy Optimization Mode until the battery is reconnected.

1. The ECO mode is only enabled upon normal system operation. If any of the following alarms occurs, the system cannot enter

or will exit the ECO mode.

a) Current imbalance (only when imbalance current protection is enabled).

b) AC fail.

c) Any one rectifier over temp.

d) Any one rectifier AC fail.

e) Any one rectifier fault.

f) Any one rectifier over voltage.

g) Any one rectifier fan fault.

h) Any one rectifier no response.

i) Any one battery fuse open.

j) Any one LVD disconnect.

k) Battery is in charge or discharge, as defined below:

- Battery current > [battery rated capacity × 0.005], or battery current > 5A means battery in charge.

- Battery current < [battery rated capacity × -0.003], or battery current < -2A means battery in discharge.

l) Under voltage.

m) Any one rectifier in current limit mode.

2. The system load cannot exceed the system energy saving point (default value is 45%). Otherwise the system cannot enter or

will exit the ECO mode.

3. When the rectifier load exceeds its optimal operating point, the system will exit the ECO mode and the controller will

recalculate and then turn off any unnecessary rectifiers. After that, the system can enter the ECO mode again.

Vertiv™ NetSure™ Control Unit (NCU) User Manual

4. If the system enters the ECO mode and then exits for five consecutive times within one hour, an abnormal alarm (ECO Cycle

Alarm) will be generated and the system can no longer enter the ECO mode until the ECO Cycle Alarm is cleared manually or retires automatically after 24 hours.

1.3.6 Power Split Feature

The Power Split feature allows you to connect the power system controlled via the NCU to an existing DC power system instead of extending or completely replacing the existing DC power system.

The power system controlled via the NCU functions as “System A” to share load (split output) with the existing system (“System B”) that requires expansion. The NCU does not require communication with the “System B’s” controller.

The Power Split feature provides for the sharing of total load in a controlled manner between the paralleled power systems.

When Power Split is programmed, the NCU adjusts rectifier output voltage per load demands to ensure proper sharing between “System A” and “System B”. See Figure 1.5.

Figure 1.5 Power Split Feature

1.3.7 AC Generator Function

This is a special feature to control an AC generator using the NCU controller by either a voltage threshold or a battery capacity threshold. The control occurs from a User designated relay located on the IB2 or EIB board. When this generator relay is activated, this means the generator should turn “On”. Criteria for the generator function is to start the generator when either the output voltage (AC Generator Start Voltage setting) or battery capacity (AC Generator Start Capacity setting) decreases to the set point. Once this occurs, an alarm called “Automatic AC Generator Run” is activated, the relay changes state, and the generator is told to start. The generator runs for a period of time and is then turned off after the Auto Equalize feature of the controller finishes.

Vertiv™ NetSure™ Control Unit (NCU) User Manual

Auto Equalize looks for two (2) specific conditions for activation.

1. Has the recharge current (provided either by the rectifiers or solar converters) exceeded a User settable Equalize Start

Current value for three (3) minutes or

2. Has the battery capacity decreased to a User settable value.

If either of the above conditions are reached, Auto Equalize activates and the NCU controller tells the rectifiers and solar converters (if present) to provide their respective output equalize voltages. Auto Equalize will deactivate once the battery recharge current reaches the Equalize Stop current level and the Equalize Stop Delay has been satisfied. Once equalize has finished, the generator will also shut off if it is running.

In addition to the automatic features above, this Generator Function will provide a way to manually run the generator when necessary. Although not necessary for operation, the function will also have the capability for recognizing a digital input signal that can be used to send feedback to the controller that the generator is running.

See “AC Generator Function:” starting on page 144.

1.3.8 Diesel Management Feature

The Diesel Management feature is available when an SM-AC supervisory module is connected to the NCU. The Diesel Management feature consists of a Diesel Test. The Diesel Test can be performed at specific intervals or a User can manually start the Diesel Test. The NCU records the test results.

1.3.9 Hybrid Control Function (Supporting Generator, Solar and Wind Energy Input, and

Optimization)

Hybrid Control is designed for use in new installations or as an upgrade of existing sites powered by a diesel generator(s) when grid power is not available. The Hybrid control is also applicable to sites with highly unreliable or frequently unavailable grid power connection. The primary power source is still considered to be the diesel generator(s). Since grid power is always given priority, the primary power source is still considered to be the grid power.

General

Hybrid Control allows the option of selecting one of the following: Fixed Daily Time based operation or Capacity Discharge based operation.

Fixed Daily Time based operation is intended to be used with a combination of AC powered active cooling (air conditioners) and DC powered cooling (heat exchangers, etc.). The cycle period is synchronized to the 24hrs day-night cycle. It makes optimum use of the different temperature conditions during the day and the night in order to facilitate Hybrid fuel saving operation.

Capacity Discharge based operation is intended for sites utilizing only DC powered cooling (heat exchangers, etc.). The cycle period is determined by User selectable depth of discharge (DOD) of the batteries per cycle, and associated recharge time. It provides optimum Hybrid fuel saving operation.

Operation from Grid Power is performed with both Fixed Daily Time and Capacity Discharge modes of operation. Grid power is always given priority when available.

NOTE!

The Hybrid Control function requires a specific configuration. Hybrid Control menus will not normally be displayed

unless your NCU has been configured by Vertiv for this function. Contact Vertiv for a Hybrid Control configuration.

As the two types of control are specific to the hardware configuration of the site, the Fixed Daily Time or Capacity Discharge is a User selectable option on installation.

Vertiv™ NetSure™ Control Unit (NCU) User Manual

Hybrid Operation

Generator Control: A potential free relay contact output from the NCU interface board controls the start and stop of the diesel

generator. The signal will be generated by the NCU and operates according to the Hybrid software mode of operation. The default control logic (User selectable) is as follows:

• Energized Output Relay - Generator OFF

• De-energized Output Relay – Generator ON

This is a fail-safe logic to ensure generator operation in all cases where power or control to the relays is lost.

In addition, the type of signal to the Generator can be selected as N/O (Normally Open) or N/C (Normally Closed) by selecting the relevant output pins of the control relay.

Number of Generator Control Outputs: The NCU Hybrid software can control one or two generators. Each generator control is designated as DG1 or DG2 output. The User can select DG1, or DG2, or DG1 and DG2. When both are selected they will be alternatively used (two generators operation).

Diesel Fail Alarm: A diesel fail alarm will be generated if the Diesel Generator ON signal fails to bring the generator to operation and provide the system with AC power. Alarm will be triggered after 60 seconds (default value, settable) from ON signal. If two generator operation is selected, the second Diesel Generator ON signal will be activated simultaneously with the Diesel Fail alarm.

Battery Fuse Trip Alarm: In the event of a Battery Fuse trip condition, an alarm will be generated.

Under Voltage Alarms:

• Under Voltage Alarm 1: If voltage decreases below the Under Voltage Alarm 1 setting, an alarm is raised.

• Under Voltage Alarm 2: If voltage decreases below the Under Voltage Alarm 2 setting, the Diesel Generator is started and

an alarm is raised.

LVD 1: Normal loads are disconnected.

LVD 2: Priority loads are disconnected.

Charge Voltage: Refer to Figure 1.6.

Equalize Charge: The battery will be recharged at the equalize voltage. This is the voltage set in the initial phase of battery

recharge. See Figure 1.6.

As the voltage limit is reached, the charge current is gradually reduced – this effect is known as current tail. When the current tail falls below a threshold level, additional equalize charge time is added and then the recharge ends.

The equalize charge current tail threshold is settable from 0.002 to 0.02. Default setting is 0.01 (1 A per 100 Ah). The additional equalize charge time is settable from 1 hour to 24 hours (settable in minutes from 0 to 1440), default setting is 3 hours. The duration of the equalize charge is the time from the start of the recharge to the end of the additional time. (Maximum charge time, determined from the time charge starts, is settable in the range of 1 hour to 48 hours, default setting is 18 hours).

The end of recharge is determined by a three (3) step approach:

• Step1 - calculated battery capacity exceeds 90%. Calculation is performed by measurement of battery current and time, in

Ah.

• Step 2 - charge current tail threshold is reached.

• Step 3 - additional charge time is completed.

Vertiv™ NetSure™ Control Unit (NCU) User Manual

Float Charge: Default float voltage is 54.0 V at 20°C with a temperature compensation of 72 mV per °C.

If battery temperature exceeds the BTRM Temp High 2 alarm set point, the charge voltage is reduced to 48 V to reduce gassing and prevent thermal runaway. The same is applicable as well for equalizing charge.

Equalizing Charge Cycle: As the cyclic use does not ensure complete battery recharge after every cycle, an equalizing charge cycle is added. The equalizing cycle is settable for every 2 to 365 days intervals, default setting is 100 days. Equalizing charge time is 12 hours independent of discharge time setting. Equalizing charge is performed at equalize voltage until end of additional equalize time and thereafter at float voltage for the remaining time. Also see Figure 1.6.

Equalize charge independently settable 0-1440 min (already set in equalize charge).

Figure 1.6 Charge Voltage

Early Termination of the Discharge Periods

During discharge, over temperature and under voltage conditions will interrupt the discharge and change the operation to charge with the Diesel Generator ON.

Over Temperature: The diesel generator will start and run for a period before it is stopped again. The run time is User selectable in

the range 30 to 120 minutes, default setting is 60 minutes. Temperature is referenced to cabinet/shelter ambient temperature sensor connected to controller, not battery temperature. Over temperature start can be disabled completely from the Settings menu.

Under Voltage: The under voltage start is triggered by under voltage alarm 2 voltage settings.

The diesel generator will start and run until the normal recharge cycle is due to finish depending on selected mode of operation.

Under Voltage with Fixed Daily Time: If the normal recharge cycle is from 7am until 7pm and under voltage has started the Diesel Generator at 5:30am, the effective recharge will be from 5:30am until 7pm.

Under Voltage with Capacity Discharge: If this mode is selected, the recharge will terminate.

Operation with Grid Power

Grid power is always used when available. If grid power becomes available during battery discharge, the discharge cycle is terminated and recharge cycle is initiated. If grid power becomes available during diesel generator operation, the diesel generator is switched OFF and operations continue on grid power.

Battery Recharge with Grid Power: Battery recharge with grid power can start from the beginning (when grid power becomes available during battery discharge) or can continue from diesel generator recharge, depending on the timing. In both cases, the

Vertiv™ NetSure™ Control Unit (NCU) User Manual

recharge process will follow the recharge profile shown in Figure 1.6. If battery becomes fully recharged and grid power is still present, the operations will continue to be powered from grid and no battery discharge will be initiated for the duration of grid availability. In this case, battery voltage will revert back to Float voltage.

Battery Discharge after Grid Failure: At the point of grid power failure, the battery capacity is unknown as these events occur in random manner. For the purpose of maximizing the use of grid power and in anticipation of grid power becoming available again, the Hybrid operation will continue with battery discharge cycle. Discharge will continue until:

• The preset discharge time elapses (Fixed Daily Time)

• The preset DOD is reached (Capacity Discharge)

In both cases, the discharge can be terminated earlier as described in “Early Termination of the Discharge Periods” on page 12.

Relay Assignment – when in Hybrid Mode

Relay 1: Generator Alarm.

No Generator Voltage Alarm. No AC supply, 60 sec delay.

Relay 2: Battery Alarms. Logic alarm generated from: under voltage 1, under voltage 2, LVD1, LVD2, battery high temp, battery very high temp, overvoltage 1, overvoltage 2, battery temp sensor fail, battery fuse alarms and high load alarm.

Relay 3: Rectifier Alarms. Logic alarm generated from: multiple rectifier fail, rectifier fail, rectifier fan failure, rectifier HVSD, rectifier AC failure and rectifier not responding.

Relay 4: System Alarms. Logic alarm generated from: load fuse alarms, high ambient temperature, ambient temp sensor fail; smoke detected, and water detection.

Relay 5: Generator Run at High Temp. Output to intelligent cooling devices linked to AC supply (DG run).

Relay 6: Intruder Alarm. Alarm triggered by dry contact door/motion sensor.

Relay 7: Diesel 1 in Operation. Output to DG1 on site. DG is set on for the duration of the signal.

Relay 8: Diesel 2 in operation. Output to DG2 on site. DG is set on for the duration of the signal.

Fixed Daily

In this mode of operation, the total duration of a complete cycle is 24hrs. This duration is necessary as the operation is synchronized with day-night temperature pattern. When an extended recharge cycle is required, its termination will still follow the 24hrs schedule.

Cycle Duration: A complete cycle consists of discharge and charge periods during the combined total of 24hrs. The discharge period starts at 7pm. It is then followed by recharge period (Diesel Generator ON) for the remainder of the 24hrs. The discharge time is User selectable in the range 1hrs to 22hrs, default setting is 12hrs.

Discharge: The discharge start time and duration are settable. Discharge period starts at 7pm. The discharge time is User selectable in the range 1hours to 22hours, default setting is 12 hours.

Recharge: Recharge period (Diesel Generator ON) follows after discharge for the remainder of the 24hrs. Recharge is performed at equalize voltage until added equalize time elapses and at float voltage for the remaining charge time.

Vertiv™ NetSure™ Control Unit (NCU) User Manual

High Load Alarm: In order to identify conditions where the load requirements are exceeding the dimensioning of the Hybrid site, an alarm will be generated. The alarm will be triggered when the maximum capacity per discharge cycle is exceeded. The threshold value will be set as default to 40% of battery capacity. It will require capacity measurement per cycle. The alarm will be set once the high load threshold value is reached and is reset at the beginning of the next discharge period. This alarm will help the User identify the root cause of the under voltage condition: high demand load, the loss of capacity due to battery aging, or insufficient charge capacity.

Capacity Discharge

The cycle period is determined by User selectable capacity discharge of the batteries and associated recharge times. The cycle repeats continuously. It does not follow a 24hrs pattern.

Capacity Discharge and Recharge: The battery discharge period is determined by the percentage of the nominal battery capacity [Ah] that will be discharged per cycle.

The depth of discharge [DOD] per cycle is User selectable in the range 20% to 80%. Default setting is 60%. The value is set as battery capacity at the end of each discharge period. Therefore, if a 60% discharge is chosen, the discharge value is set to 40%.

The time to recharge to full battery capacity depends on battery capacity at the start of the charge cycle and the available recharge current.

When the additional charge time has been reached; the generator will be stopped, the recharge cycle will end, and discharge cycle will be initiated.

For practical purposes, the battery capacity at the end of every recharge period is set to 100% as long as Step1, Step 2, and Step 3 have elapsed.

If end of charge is not reached within the set maximum hours, the recharge will be terminated and discharge cycle will be initiated.

1.3.10 Supervisory Module (SM Modules) Monitoring

Various devices (supervisory modules) can be connected to the NCU to extend its monitoring capabilities.

1.3.11 Maximum Current Limit Function

The current available from the rectifiers can be limited (in AMPS) from 10% to 121% of combined rectifier capacity. The factory setting is 121% unless otherwise specified. The current available from the converters can be programmed (in AMPS) from 50% to 116% of combined converter capacity. The factory setting is 116% unless otherwise specified. Refer to the NCU Configuration Drawing (C– drawing) supplied with your system documentation for your system’s settings.

See also “Checking the Controller’s Current Limit Point after Adding or Removing a Rectifier or Converter Module” on page 37.

1.3.12 Communications Function

The NCU is able to communicate with different equipment or, connect to different equipment for communication. See Figure 1.7.

a) 10M/100M Ethernet Port: The NCU can communicate with a supervisory computer or other devices through its 10M/100M

Ethernet port. The communication cable shall be a shielded cable. The Ethernet port is located on the front panel of the NCU. This port supports Dynamic Host Configuration Protocol (DHCP) function.

NOTE!

Some systems may have an IB4 board with a second Ethernet port. The IB4 board is connected to the NCU’s

backplane connector (USB) via a factory provided cable. Refer to your system’s documentation for location of the IB4 board

(if furnished).

b) IB2 (Interface Board) and EIB (Extended Interface Board): Some systems may have an IB2 (Interface Board) and/or EIB

(Extended Interface Board) connected to the NCU. Each IB2 board provides eight (8) dry relay outputs. Each EIB board provides five (5) dry relay outputs. Every relay output has a set of NC (normally close) and NO (normally open) contacts.

Vertiv™ NetSure™ Control Unit (NCU) User Manual

The relay outputs can be connected to customer external alarm circuits. Each relay output can be configured to change state when one or more alarm events occur.

The relay outputs can also be connected to customer external equipment, so that the relay output can control or interface with the customer external equipment.

c) IB4 (Interface Board 4): Some systems may have an IB4 board. The IB4 board is a USB to LAN converter for the NCU, which

includes a USB and an Ethernet port. The IB4 board is connected to the NCU’s backplane connector (USB) via a factory provided cable. Refer to your system’s documentation for location of the IB4 board (if furnished).

d) RS-485 Port: The NCU can communicate with an SM-AC, SM-Bat, or SMIO through the RS-485 port. The RS-485 port uses

the parameters 19200, n, 8, 1.

e) Modbus Protocol: The NCU can communicate with an AC Meter using the Modbus protocol.

f) TL1: See “TL1 Interface” starting on page 59.

g) Machine-to-Machine HTTP Interface: See “Machine-to-Machine HTTP Interface” starting on page 60.

1.3.13 FIAMM SoNick (Sodium Nickel) battery Interface

If a special configuration file is furnished, the NCU has capability to receive status information sent from FIAMM SoNick (Sodium Nickel) batteries. See “FIAMM SoNick (Sodium Nickel) Batteries Interface” starting on page 57.

Figure 1.7 The Controller Perspective

1.3.14 Radius Server Feature

When the radius server feature is enabled and a User attempts to login using the LCD or web page, the NCU first checks the username/password entered for a match programmed in the NCU. If the NCU authenticates, then the NCU grants the User access. This step is to allow a login in case the radius server is not available, has changed, etc.

If the authentication fails (either not present or wrong password), then the NCU checks the username/password entered using the radius interface. If the NCU authenticates, then the NCU grants the User access. If authentication fails, the NCU notifies the User and does not grant the User access.

If an IB4 board is present, the radius messages are sent to the IB4 network interface; otherwise, the radius messages are sent to the front (craft) port.

Vertiv™ NetSure™ Control Unit (NCU) User Manual

The NCU sends the Service-Type attribute. The Service-Type attributes supported are:

1 Login – browser privilege level.

5 Outbound – operator privilege level.

6 Administrative – admin privilege level.

7 NAS Prompt – engineer privilege level.

If the server responds with an unknown Service-Type, the NCU will record the event it in the system log and act as though access was rejected, per RFC 2865.

The NCU does not support the Access-Challenge response from the server. If this response is received, it is ignored.

The radius server settings are programmed using the web interface. Admin privilege level access is required.

Vertiv™ NetSure™ Control Unit (NCU) User Manual

Graphics Menu Name Description

Alarm (Green - No Alarm) (Red - Alarm)

View active alarms and alarm history.

Settings

Gain access to the NCU Controller’s settings menus.

Input Power

View AC, Solar, DG, and Wind related information.

Module

View rectifier, solar converter, and converter module related information.

View DC equipments related information.

Battery

View battery related information.

To reboot the Controller, from the Main Menu press the ENT and ESC keys at the same time. Release both keys. Press ENT to confirm.

Date and time are alternately displayed.

Green - No Alarm Red - Alarm

Main Menu

Rect Cap Used: 22.3 %

The number in ( ) indicates the total number of alarms.

Press the UP and DOWN keys to highlight the desired Menu graphic in the Main Menu.

Press the ENT key to enter the selected menu.

2 Operation

2.1 Controller Initialization

The controller goes through an initialization process when power is initially applied to the system.

NOTE!

The initialization routine takes several minutes. During that time various alarm indicators may illuminate on the

controller’s front panel and an audible alarm may sound. Disregard all alarms. An audible alarm can be silenced at any time

by momentarily depressing the ENT key on the controller.

NOTE!

The controller does not turn off any relay when the controller is reset/replaced. If the relay is active when the

controller is reset/replaced, it will stay active whether or not the alarm condition still exists. If possible, the alarm condition

should be cleared before the controller is reset/replaced. If the alarm is not cleared, after starting the controller, it may be

necessary to manually trigger an alarm condition to clear all alarm relays.

Initialization

1. After the controller is powered on, the display shows the “logo” screen. The controller is initializing.

2. When initialization is complete, the language screen appears. Press the UP or DOWN arrow key to select the desired

language. Press the ENT key to confirm the selection.

3. The following message appears.

“Please go to webpage to change the factory default password. Press enter to continue.”

This message will appear every time the controller is rebooted until the factory default password is changed. See “Logging into the Controller via Web Interface Access” on page 29.

4. The Main Menu displays. See Figure 2.1.

Figure 2.1 NCU Local Display Main Menu

Vertiv™ NetSure™ Control Unit (NCU) User Manual

5. System information is displayed in multiple screens. Press the ESC key to view other system information. Press the down

arrow key to view the next screen. Press the ESC key to return to the Main Menu.

6. From the Main Menu, press the UP and DOWN keys to highlight the desired Menu graphic in the Main Menu. Press the ENT

key to enter the selected menu.

NOTE!

Repeatedly press the “ESC” key to return in reverse order level by level from any submenu until the Main Menu

appears.

2.2 Local Indicators

There are three (3) indicators located on the NCU’s front panel. Refer to Table 2.1 for the function of the indicators. Refer to Figure 2.2 for location.

Figure 2.2 Local Indicators and Menu Navigation Keys Locations

Table 2.1 Local Indicators

Indicator Normal State Fault State Fault Cause

Status

(Green)

Minor Alarm

(Yellow)

Major or Critical

Alarm (Red)

On Off No input power to the NCU.

Off On

The system has one or more active Minor alarms. Alarm conditions are programmable.

The system has one or more active Major or

Off On

Critical alarms. Alarm conditions are programmable.

Vertiv™ NetSure™ Control Unit (NCU) User Manual

2.3 Using the Local Keypad and Display

See also “Passwords and Privilege Levels” on page 20.

2.3.1 Local Menu Navigation Keys and Local Display

There are four (4) menu navigation keys and a local display located on the NCU’s front panel. Refer to Table 2.2 for the function of the menu navigation keys. Refer to Figure 2.2 for location.

Table 2.2 Local Menu Navigation Keys

NOTE!

When the local display is lit, if no button is pushed for eight (8) minutes, the backlight of the local display extinguishes

and the NCU returns to the Main Menu. Press any key to re-activate the local display.

Key Symbol Key Name Function

ESC Escape

ENT Enter





Press any key to silence an audible alarm.

Up Arrow

Down Arrow

Press this key to go back to a previous menu or to cancel setting a parameter.

Press this key to go forward to the next menu, to select a parameter to edit, or to validate a parameter setting change.

Press the up or down arrow keys to scroll through the menus or to change the value of a parameter.

2.3.2 Local Display Menus

Refer to “Local Display Menus” on page 85.

Navigating the Menus

To Select a Sub-Menu:

Press the UP and DOWN keys to highlight the desired sub-menu. Press the ENT key to enter the selected sub-menu.

Press ESC and ENT together to reset the NCU, then press ENT to accept or ESC to cancel.

To Select a User and Enter a Password: To select a User, use the UP and DOWN keys to move the cursor to the Select User field. Press ENT. Use the UP and DOWN keys to select a User previously programmed into the NCU. Press ENT to select the User. Note that only Users programmed into the NCU are shown. Users are programmed via the Web Interface.

To enter a password, use the UP and DOWN keys to move the cursor to the Enter Password field. Press ENT. Use the UP and DOWN keys to choose a character. Press ENT to accept and move to the next character. Continue this process until all characters are entered. Press ENT again to accept the password.

To Change a Parameter:

Press the UP and DOWN keys to move up and down the list of parameters. Press ENT to select the parameter. Press the UP and DOWN keys to change the parameter. Press ENT to make the change. Press ESC to cancel the change.

Vertiv™ NetSure™ Control Unit (NCU) User Manual

2.4 Using the Web Interface

See also “Passwords and Privilege Levels” on page 20.

NOTE!

The NCU supports a 10/100M Ethernet connection.

2.4.1 Overview

Via the Web Interface, a User (with proper access level) can:

• View real-time operating information (rectifiers, converters, solar converters, AC, DC, batteries, etc.).

• View and download information recorded in logs.

• Send control commands.

• Set programmable parameters.

• Download and upload the “SettingParam.tar” file.

• Download firmware to the controller.

2.4.2 Multiple Browsers Supported

Multiple browsers are supported in the Web Interface. The User can use Internet Explorer, Chrome, Safari, or Firefox.

2.4.3 Web Interface Screens

Refer to “Web Interface Screens” on page 110.

2.5 Passwords and Privilege Levels

Local Keypad and Display

Anyone can browse the NCU via the local keypad and display. A User Name and Password is required to change settings. User Names and associated passwords are programmed into the NCU via the Web Interface. To change settings locally, a User Name and Password for a User with an access level of Level B (Operator) or higher is required. See “Users Tab” on page 172. Once a password is entered locally, it remains in effect for a preset time period to allow navigating between menus without re-entering the password.

Web Interface

Web interface access always requires a User name and password to be entered to gain access.

Web Interface User Privilege Levels: Users are programmed with a “privilege level” (see Table 5.1 on page 174). Each privilege level gives a User Web access to specific menus, as shown in Table 5.2 on page 174. A User has access to his/her level menus, plus all menus of the lesser privilege levels.

2.6 Multiple Languages Supported

Multiple languages are supported in the Local Interface and Web Interface. Refer to “Language Tab” on page 185.

2.7 Setup Procedures

2.7.1 Setting IPv4 Communications Parameters (if controller not set as DHCP)

The controller’s IPv4 parameters (IP, subnet mask, and gateway addresses) must be set to match your company’s network settings. The default settings for these parameters are shown below.

+ 244 hidden pages