ComAp InteliMains NT IM-NT-BB User manual

Reference Guide
InteliMainsNT®
Mains Circuit Breaker and Master Generator
Circuit Breaker Applications
IM-NT-BB, IM-NTC-BB, IM-NT
SW version 3.2.0, September 2015
Copyright ©2015 ComAp a.s.
ComAp a.s.
Kundratka 17, 180 00 Praha 8, Czech Republic
Tel: [phone], Fax: [phone]
E-mail:[e-mail], www.comap.cz

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Table of contents
1Document information................................................................................................................... 6
1.1 Available Related Documentation .............................................................................................. 7
1.2 Clarification of notation............................................................................................................... 8
1.3 Conformity Declaration............................................................................................................... 8
2System overview............................................................................................................................ 9
2.1 General description .................................................................................................................... 9
2.2 Configurability and monitoring.................................................................................................. 10
2.2.1 GenConfig........................................................................................................................ 10
2.2.2 InteliMonitor ..................................................................................................................... 10
2.2.3 WinScope......................................................................................................................... 11
2.2.4 WebSupervisor ................................................................................................................ 11
2.3 Applications overview............................................................................................................... 11
3Installation .................................................................................................................................... 12
3.1 IM-NT Installation instructions.................................................................................................. 13
3.1.1 Mounting.......................................................................................................................... 13
3.1.2 Terminal diagram, Dimensions........................................................................................ 14
3.1.3 Package contents ............................................................................................................ 15
3.1.4 Jumper settings................................................................................................................ 15
3.2 IM-NT-BB and IM-NTC-BB Installation instructions ................................................................. 15
3.2.1 Mounting.......................................................................................................................... 16
3.2.2 Terminal diagram, Dimensions........................................................................................ 18
3.2.3 Package contents ............................................................................................................ 19
3.2.4 Jumper settings................................................................................................................ 19
3.3 Wiring (general)........................................................................................................................ 19
3.4 Grounding (general) ................................................................................................................. 20
3.5 Power supply (general)............................................................................................................. 20
3.6 Power supply fusing (general).................................................................................................. 20
3.7 Voltage and current inputs (general)........................................................................................ 21
3.8 Binary Input wiring (general) .................................................................................................... 22
3.9 Binary Output wiring................................................................................................................. 22
3.9.1 IM-NT............................................................................................................................... 22
3.9.2 IM-NT-BB and IM-NTC-BB .............................................................................................. 23
3.10 Analog Input and Output wiring................................................................................................ 24
3.11 CAN and RS485 bus wiring...................................................................................................... 26
3.11.1 Wiring examples .............................................................................................................. 27
3.12 Extension modules (general).................................................................................................... 28
4Putting it into operation............................................................................................................... 29
4.1 Connection to a controller using PC......................................................................................... 29
4.1.1 Direct connection............................................................................................................. 29
4.1.2 Modem connection .......................................................................................................... 30
4.1.3 Internet connection .......................................................................................................... 31
4.1.4 Airgate connection........................................................................................................... 32
4.1.5 Connection to multiple controllers.................................................................................... 33
4.2 Modification of configuration, setpoints etc. ............................................................................. 34
4.3 Programming of a controller..................................................................................................... 35
4.3.1 Standard programming.................................................................................................... 35
4.3.2 Programming of non-responsive controller...................................................................... 35
4.4 Changing the language ............................................................................................................ 38
4.4.1 Selection of the language in InteliMains-NT GC.............................................................. 38
4.4.2 Selection of the language in InteliMains-NT(C)-BaseBox ............................................... 38
4.5 Password management............................................................................................................ 39
4.5.1 User administration.......................................................................................................... 39
4.5.2 Access group setting in GenConfig ................................................................................. 40
4.5.3 Password break protection.............................................................................................. 40

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4.6 Related tools............................................................................................................................. 42
5Operator guide.............................................................................................................................. 43
5.1 IM-NT........................................................................................................................................ 43
5.2 Systems with InteliVision displays............................................................................................ 43
6Firmware and Archives................................................................................................................ 44
6.1 BaseBox type controllers.......................................................................................................... 44
6.2 Graphical Character type controllers........................................................................................ 44
7Function description.................................................................................................................... 45
7.1 Overview................................................................................................................................... 45
7.2 Modes....................................................................................................................................... 57
7.2.1 OFF mode........................................................................................................................ 57
7.2.2 MAN mode....................................................................................................................... 57
7.2.3 AUT mode........................................................................................................................ 57
7.2.4 TEST mode...................................................................................................................... 57
7.3 Process Limitation .................................................................................................................... 61
7.3.1 MGCB.............................................................................................................................. 61
7.3.2 MCB................................................................................................................................. 64
7.4 System start.............................................................................................................................. 65
7.5 StartUpSynchronization............................................................................................................ 66
7.6 Power management ................................................................................................................. 66
7.6.1 Power management limitations........................................................................................ 66
7.6.2 Basic Power management............................................................................................... 67
7.6.3 Automatic priority swapping............................................................................................. 80
7.6.4 Minimum Running Power................................................................................................. 96
7.6.5 Control Groups................................................................................................................. 98
7.6.6 Load shedding based on active power............................................................................ 99
7.6.7 Load shedding based on frequency .............................................................................. 100
7.6.8 Peak shaving based on Active and Apparent Power .................................................... 102
7.7 Remote Alarm Messaging...................................................................................................... 102
7.7.1 Communication Types for Remote Alarm Messaging................................................... 102
7.7.2 Example of setting ......................................................................................................... 103
7.8 Controller Redundancy........................................................................................................... 103
7.8.1 Redundant systems using binary signals ...................................................................... 104
7.8.2 Redundant systems using CAN bus.............................................................................. 104
7.9 System load control modes.................................................................................................... 106
7.9.1 SYSBLD->LS................................................................................................................. 106
7.9.2 ANEXSYSBLD->LS....................................................................................................... 106
7.9.3 IMP/EXP ........................................................................................................................ 107
7.9.4 ANEXT IMP/EXP ........................................................................................................... 107
7.9.5 T BY PWR...................................................................................................................... 107
7.9.6 Managing system load control modes........................................................................... 108
7.10 System PF control modes ...................................................................................................... 113
7.10.1 PF IMP/EXP................................................................................................................... 113
7.10.2 PF ANEXT IMP/EXP...................................................................................................... 113
7.11 Automatic Mains Failure function ........................................................................................... 113
7.12 Regulation loops..................................................................................................................... 115
7.12.1 PI regulation adjustment................................................................................................ 116
7.13 Force value –step by step guide ........................................................................................... 117
7.14 Values for continuous writing from external sources.............................................................. 118
7.15 General Purpose Timers ........................................................................................................ 119
7.15.1 Timer modes.................................................................................................................. 119
7.16 History Related functions........................................................................................................ 120
7.16.1 History Records Adjustment.......................................................................................... 120
7.16.2 Time Stamp function...................................................................................................... 121
7.16.3 Time and Date Intercontroller Sharing........................................................................... 121
7.16.4 Summer Time Mode ...................................................................................................... 121
7.17 User Buttons........................................................................................................................... 121
7.18 Remote Control Function........................................................................................................ 122
7.19 Virtual Peripheral Inputs-Outputs (VPIO) module .................................................................. 123

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7.20 Shared Inputs and Outputs .................................................................................................... 123
7.21 Distributed Binary Inputs and Outputs.................................................................................... 125
7.22 Modbus Reading and Writing................................................................................................. 126
7.23 User MODBUS ....................................................................................................................... 127
7.24 Modbus Switches ................................................................................................................... 127
7.25 Analog Input Sensors and User Sensors ............................................................................... 128
7.26 Languages and Translator tool in GenConfig ........................................................................ 129
7.27 Power Formats....................................................................................................................... 129
7.28 System Start/Stop................................................................................................................... 129
7.29 Soft Unload with support of I Aux measurement.................................................................... 130
7.30 System Isolated...................................................................................................................... 132
7.31 User Mask function................................................................................................................. 132
7.32 Switchable Current measurement ratio.................................................................................. 134
7.33 PLC functions ......................................................................................................................... 134
7.34 Multi language support........................................................................................................... 134
8Protections and Alarm management........................................................................................ 135
8.1.1 Protection groups........................................................................................................... 135
8.1.2Protection types............................................................................................................. 135
8.1.3 Default protections in MCB/MGCB applications............................................................ 136
8.1.4 Mains voltage and frequency protections - limits and indications ................................. 137
8.1.5 Bus voltage and frequency protections - limits and indications..................................... 137
8.1.6 User configurable protections........................................................................................ 138
8.1.7 Reset Actual Alarms selection....................................................................................... 140
8.1.8 Bus Measurement Error detection................................................................................. 140
8.1.9 Peripheral Modules Error detection............................................................................... 141
9Circuit breakers operation sequence, MGCB/MCB fail detection........................................ 142
9.1 MCB fail Information............................................................................................................... 142
9.2 General Information................................................................................................................ 143
9.2.1 Related binary inputs:.................................................................................................... 143
9.2.2 Related binary outputs:.................................................................................................. 143
9.2.3 Following graphs depict possible CB sequences: ......................................................... 144
9.2.4 Follow function for breaker control in AUT mode .......................................................... 147
9.2.5 Follow function for breaker control in MAN mode.......................................................... 148
10 Controller operation states ................................................................................................. 149
APPENDIX .......................................................................................................................................... 150
11 Setpoints ............................................................................................................................... 151
11.1 Password Protection............................................................................................................... 151
11.2 Table of setpoints ................................................................................................................... 151
11.2.1 Group: ProcessControl .................................................................................................. 151
11.2.2 Group: Basic settings..................................................................................................... 175
11.2.3 Group: Comms settings................................................................................................. 191
11.2.4 Group: ComProtSetting ................................................................................................. 206
11.2.5 Group: Analog protect.................................................................................................... 209
11.2.6 Group: Mains protect ..................................................................................................... 210
11.2.7 Group: Bus protect......................................................................................................... 219
11.2.8 Group: AMF settings...................................................................................................... 224
11.2.9 Group: Pwr management............................................................................................... 229
11.2.10 Group: Sync/Load ctrl.................................................................................................... 248
11.2.11 Group: Volt/PF ctrl ......................................................................................................... 256
11.2.12 Group: Force value........................................................................................................ 258
11.2.13 Group: Load shedding ................................................................................................... 271
11.2.14 Group: Timer settings .................................................................................................... 281
11.2.15 Group: Act. calls/SMS.................................................................................................... 286
11.2.16 Group: Date/Time .......................................................................................................... 292
12 Values.................................................................................................................................... 295
12.1 Table of values ....................................................................................................................... 295
12.1.1 Group: Mains values...................................................................................................... 295

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12.1.2 Group: Bus values ......................................................................................................... 305
12.1.3 Group: Object values..................................................................................................... 308
12.1.4 Group: Gen-sets ............................................................................................................ 309
12.1.5 Group: Control loops...................................................................................................... 319
12.1.6 Group: Mains protect ..................................................................................................... 319
12.1.7 Group: Power management........................................................................................... 320
12.1.8 Group: Sync/Load ctrl.................................................................................................... 323
12.1.9 Group: Volt/PF ctrl ......................................................................................................... 323
12.1.10 Group: Force value........................................................................................................ 324
12.1.11 Group: Load shedding ................................................................................................... 326
12.1.12 Group: Analog CU ......................................................................................................... 326
12.1.13 Group: Bin inputs CU..................................................................................................... 327
12.1.14 Group: Bin outputs CU................................................................................................... 328
12.1.15 Group: Log Bout ............................................................................................................ 328
12.1.16 Group: Info..................................................................................................................... 333
12.1.17 Group: Statistics............................................................................................................. 341
13 Binary input functions ......................................................................................................... 345
13.1 Virtual and physical modules.................................................................................................. 345
13.2 Table of binary input functions ............................................................................................... 346
14 Binary output functions....................................................................................................... 392
14.1 Virtual and physical modules.................................................................................................. 392
14.2 Table of binary output functions ............................................................................................. 393
15 Analog Input functions ........................................................................................................ 430
15.1 Virtual and physical modules.................................................................................................. 430
15.2 Table of analog input functions .............................................................................................. 431
16 User Notes............................................................................................................................. 435

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1 Document information
InteliMains-NT® – MGCB/MCB Reference guide
Written by: Tomáš Vydra
©2015 ComAp a.s.
Kundratka 17, Praha 8, Czech Republic
Phone: [phone], Fax: [phone]
Web: HTTP://WWW.COMAP.CZ, e-mail: [e-mail]
DOCUMENT HISTORY
REVISION NUMBER
RELATED SW.VERSION
DATE
1
3.0
27.5.2013
2
3.1.0
1.9.2014
3
3.2.0
30.3.2015
Pressing F1 in the GenConfig and InteliMonitor setpoint, values or configuration window
will open the help with the context of currently selected setpoint, value and binary input
or output function.

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1.1 Available Related Documentation
PDF files
Description
IM-NT-MCB-MGCB-3.2.0 Reference
Guide.pdf
General description of MCB and MGCB applications
for InteliMains. Contains general information about
installation and related PC software.
IM-NT-BTB-3.2.0 Reference Guide.pdf
General description of BTB applications for
InteliMains. Contains general information about
installation and related PC software.
IM-NT-FDR-3.2.0 Reference Guide.pdf
General description of FDR applications for
InteliMains. Contains general information about
installation and related PC software.
IG/IS-NT Installation Guide 08-2014.pdf
Thorough description of installation and technical
information about InteliGen NT, InteliSys NT,
InteliMains NT and related accessories.
IG/IS-NT Communication Guide 09-2014.pdf
Thorough description of connectivity and
communication for InteliGen NT, InteliSys NT,
InteliMains NT and related accessories.
IG/IS-NT Operator Guide 01-2014.pdf
Operator Guide for BaseBox controllers using
InteliVision 5 and/or 8.
IG/IS-NT-Application Guide 05-2013.pdf
Application Guide for InteliGen NT, InteliSys NT and
InteliMains NT systems
IG/IS-NT Troubleshooting Guide 08-2014.pdf
Troubleshooting guide for InteliGen NT, InteliSys NT,
InteliMains NT and related accessories

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1.2 Clarification of notation
HINT
This type of paragraph points out details to help user installation/configuration.
NOTE:
This type of paragraph calls readers’attention to a notice or related theme.
CAUTION!
This type of paragraph highlights a procedure, adjustment, etc. which may cause damage or improper
functioning of the equipment if not carried out correctly and may not be clear at first sight.
WARNING!
This type of paragraph indicates things, procedures, adjustments, etc. which demand a high level of
attention, otherwise personal injury or death may occur.
EXAMPLE:
This type of paragraph indicates examples of usage for illustrational purposes.
TYPE
TEXT NOTATION
Setpoints in the text
SetpointGroup:SetpointName
Values in the text
ValueGroup:ValueName
Logical Binary/Analog Input/Output functions in the text
LOGICALFUNCTION
Setpoint setting option
OPTION
1.3 Conformity Declaration
The following described machine complies with the appropriate basic safety and
health requirement of the EC Low Voltage Directive No: 73/23 / EEC and EC
Electromagnetic Compatibility Directive 89/336 / EEC based on its design and type, as
brought into circulation by us.

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2 System overview
2.1 General description
InteliMains-NT controller is comprehensive mains supervision controller for multiple generating sets
operating in parallel to the Mains. A modular construction allows upgrades to different levels of
complexity in order to provide the best solution for various customer applications.
NT Family controllers are equipped with a powerful graphic display showing icons, symbols and bar-
graphs for intuitive operation, which sets, together with high functionality, new standards in Gen-set
controls.
BaseBox versions of InteliMains controllers are now available. This version features controller without
built-in monochromatic display and can be combined with new and powerful display units InteliVision-8
and InteliVision-5. For more information on these products, please go to comap.cz web pages.
The controller automatically connects the group of gen-sets to the Mains. It features mains failure
detection using integrated Mains protections, MCB and MGCB synchronization, configuration level
switches based on Mains import or object consumption.
The controller provides easy-to-use operation and installation. Predefined configurations for typical
applications are available as well as user-defined configurations for special applications.
NOTE:
In versions below 2.6 the IM-NT controller does not accept an external bus supply (bus supply which
is not controlled by a ComAp controller).
Gensets have to be in AUT mode to ensure proper MGCB function.
The key features are:
Automatic gen-set start when the mains fails (BI SYS START/STOP is closed)
MCB controlled by InteliMains-NT
Break transfer on mains failure
MCB synchronizing after mains return
Power management (load dependent start and stop)
Gen-set priority can be defined manually or automatically based on running hours equalization
or load demand (most efficient combination)
Load sharing and VAR sharing
Gen-sets soft loading and unloading
Voltage matching
Reverse power protection
Full PLC logic included
Support of redundancy controller
MGCB support
Group Link function
Active calls and SMS

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2.2 Configurability and monitoring
One of the key features of the controller is the system’s high level of adaptability to the needs of each
individual application and wide possibilities for monitoring. This can be achieved by configuring and
using the powerful ComAp PC/mobile tools.
Supported configuration and monitoring tools:
GenConfig –complete configuration and firmware upgrade
InteliMonitor –multiple site monitoring and setpoint setting
WinScope –special graphical monitoring software
WebSupervisor –web-based system for monitoring and controlling
oWebSupervisor mobile –supporting application for smartphones
NOTE:
Use the GenConfig PC software to read, view and modify configuration from the controller or disk and
write the new configuration to the controller or disk.
2.2.1 GenConfig
Configuration and monitoring tool for InteliMainsNT,
InteliGenNT and other controllers. See more in
GenConfig Reference Guide.
This tool provides the following functions:
Direct, modem or internet communication with
the controller
Offline or online controller configuration
Controller firmware upgrade
Reading/writing/adjustment of setpoints
Binary/Analog Inputs and Outputs logical functions adjustments
Exporting data into a XLS file
Controller language translation
Screen Editor for editing InteliVision 5 a 8 screens
PLC Editor for editing built-in PLC functions
Updating and configuration of InteliVision 8 firmware
User Protections, User sensor curves, password protection and history management
2.2.2 InteliMonitor
PC Monitoring tool for Inteli controllers. See more in the
InteliMonitor Reference Guide.
This tool provides the following functions:
Online monitoring of a controller or whole site
Fully customizable SCADA diagram
Reading/writing/adjustment of setpoints
Reading of measured values
Browsing of controller history records

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2.2.3 WinScope
Special graphical controller monitoring software. See
more in the WinScope Reference guide.
This tool provides the following functions:
Monitoring and archiving of ComAp controller’s
parameters and values
View of actual/historic trends in controller
On-line change of controllers’ parameters for
easy regulator setup
2.2.4 WebSupervisor
Web-based system for monitoring and controlling ComAp controllers. See more at the WebSupervisor
webpage.
This tool provides the following functions:
Site and fleet monitoring
Reading of measured values
Browsing of controller history records
On-line notification of alarms
E-mail notification
Also available as a smartphone application
2.3 Applications overview
For detailed description of several possible applications using InteliMainsNT please refer to the
IGS-NT-Application Guide.
NOTE:
It is necessary to use power formats in MX when the sum of nominal power of gen-sets or any power
in the system (e.g. power imported from Mains) is expected to be above 32000 kW.

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3 Installation
There are currently three HW versions of InteliMainsNT controller. Please refer to the corresponding
portion of this chapter for installation instruction for your particular controller type. Chapters relevant
for both HW configurations are marked as “(general)”.
CONTROLLER TYPE
HARDWARE FEATURES
IM-NT
6 Binary Outputs
6 Binary Inputs
Mains and Bus Voltage measurement (3-phase)
Mains Current measurement (3-phase)
Auxiliary Current measurement (1-phase)
RS485 Communication port for universal use
RS232 Communication port
CAN1 Communication port (for extension modules)
CAN2 Communication port (for intercontroller
communication and monitoring)
IM-NT-BB
12 Binary Outputs
12 Binary Inputs
3 Analog Inputs
1 Analog Output
Mains and Bus Voltage measurement (3-phase)
Mains Current measurement (3-phase)
Auxiliary Current measurement (1-phase)
RS485 Communication port dedicated for display
RS232 Communication port
CAN1 Communication port (for extension modules)
CAN2 Communication port (for intercontroller
communication and monitoring)
IM-NTC-BB
12 Binary Outputs
12 Binary Inputs
3 Analog Inputs
1 Analog Output
Mains and Bus Voltage measurement (3-phase)
Mains Current measurement (3-phase)
Auxiliary Current measurement (1-phase)
RS485 Communication port dedicated for display
RS485 Communication port for universal use with galvanic
separation
RS232 Communication port
CAN1 Communication port (for extension modules)
CAN2 Communication port (for intercontroller
communication and monitoring)
USB Communication port
RJ45 (Ethernet) Communication port

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3.1 IM-NT Installation instructions
This portion of Instalation instructions is dedicated to the
InteliMains-NT-GC controller with built-in display. If you have
BaseBox type of the controller (without the built-in display), please
refer to the section 3.2.
3.1.1 Mounting
Prepare the screw holders
Locate four sockets for screw holders
Insert the unit into cut-out in a switchboard and
insert all four screw holders accordingly to their
positions
Tighten as required to fix the controller in the
position

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3.1.2 Terminal diagram, Dimensions
Mains Bus
Voltage measurement Binary inputs
RS232
Current measurement
Mains Aux
Binary outputs
N/A
+PWR BOUT
Grounding
RS485
CAN1
Extension
CAN2
Intercontroller
170 (6,7")
185 (7,3")
123 (4,8“)
RS232
USB
68
2,7“
Cutout for IG-XX/IM-NT
113 x 175 mm
4,4 x 6,9”
123 (4,8“)
110 (4,3“)

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3.1.3 Package contents
The package contains:
Controller
Mounting holders
Terminal blocks
3.1.4 Jumper settings
There are several jumpers available on the unit. Their location and purpose is described below.
Voltage measurement
RS232
120 Ω
terminators
Pull up
Pull down
Use boot jumper if controller is not responding to communication (e.g. due to faulty programming
sequence). Take off the rubber cover using screwdriver to acces boot jumper next to dongle slot.
Use 120 Ωterminators at the end of CAN1, CAN2 or RS485 buses. Do not use these terminators on
units that are not terminating the bus.
Use pull up and pull down resitors on RS485 to bias the line when no device is active on the bus to
prevent noise from undriven line to be interpreted as data.
3.2 IM-NT-BB and IM-NTC-BB Installation instructions
This portion of Instalation instructions is dedicated to the
InteliMains-NT-BaseBox and InteliMains-NTC-BaseBox
controllers without built-in display. If you have version with built-in
display of the controller, please refer to the section 3.1.
Boot jumper location

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3.2.1 Mounting
BaseBox units are prepared for mounting on DIN rain mount (35mm).
Locate two plastic holders on the back side of the
controller
Make sure both holders are in open position (right
image). If not (left image) open them by pulling
them slightly out
Mount the unit on the DIN rail and secure by
pressing two plastic holder until they click and fix
the unit into position
BaseBox units may also be mounted on InteliVision 5 and together with it mounted into cut-out
in a switchboard.
Mount InteliVision 5 into the switchboard cut-out
(for more information on InteliVision 5 mounting
please refer to the InteliVision 5 Reference
Guide)
Use the rail provided on the back side of
InteliVision 5 and mount the controller to it while
following the same steps when mounting on
standard rail (rail openings on InteliVision 5 are
fixed so there is only one possible way how to
mount the controller to it)

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Locate four screw holes on the front of the
controller
Insert provided screws and use them to secure
the controller mounted to InteliVision 5 (screws fit
into InteliVision 5 holder pieces)

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3.2.2 Terminal diagram, Dimensions
Mains Bus
Voltage measurement Binary inputs
1-6
7-12
RS485
Display only
CAN1
Extension
modules
CAN2
Intercontroller
and
monitoring
RS232
USB
(NTC only)
Ethernet
(NTC only)
RS485
Universal
use
(NTC only)
Current measurement
Mains Aux Binary outputs
1-8
9-12 + -
Binary outputs
Binary inputs
Power
Analog inputs
1-3
AI COM
Analog output
AOUT COM
AOUT -
RS232
56.5
223
110
RS 232
USBRJ 45
68.5
142
166
IM-NTC-BB only
IM-NTC-BB only

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3.2.3 Package contents
The package contains:
Controller
Screws for optional screw mounting
Terminal blocks
3.2.4 Jumper settings
There are several jumpers available on the unit. Their location and purpose is described below.
Mains Bus
Voltage measurement Binary inputs
1-6
120 Ω
terminators
RS232
USB
(NTC only)
Ethernet
(NTC only)
Current measurement
Mains Aux Binary outputs
1-8 Power
AI COM
Analog output
AOUT COM
AOUT -
Pull upPull down
Pull up Pull down
(NTC only)
Voltage
output
0-10V
Current
output
0-20mA
Voltage input
0-5 VDC
Current input
0-25 mA
Resistance input
0-2400 Ω
120 Ω
terminator
Use boot jumper if controller is not responding to communication (e.g. due to faulty programming
sequence). Take off the rubber cover using screwdriver to acces boot jumper next to dongle slot.
Use 120 Ωterminators at the end of CAN1, CAN2 or RS485 buses. Do not use these terminators on
units that are not terminating the bus.
Use pull up and pull down resitors on RS485 to bias the line when no device is active on the bus to
prevent noise from undriven line to be interpreted as data.
3.3 Wiring (general)
To ensure proper function:
Use grounding terminals.
Wiring for binary inputs and analog inputs must not be run with power cables.
Analog and binary inputs should use shielded cables, especially when the length is more than
3 m.
Tightening torque, allowable wire size and type, for the Field-Wiring Terminals:
For Mains(Bus) Voltage, Generator Voltage a Current terminals
oSpecified tightening torque is 0,56Nm (5,0 In-lb)
oUse only diameter 2,0-0,5mm (12-26AWG) conductor, rated for 90°C
minimum.
Boot jumper location

InteliMainsNT, SW version 3.2.0
InteliMains-NT-MCB-MGCB-3.2.0-Reference Guide.pdf, ©ComAp –April 2015
20
For other controller field wiring terminals
oSpecified tightening torque 0,79Nm (7,0 In-lb)
oUse only diameter 2,0-0,5mm (12-26AWG) conductor, rated for
75°C minimum.
oUse copper conductors only.
3.4 Grounding (general)
The shortest possible piece of wire should be used for controller grounding. Use cable min. 2.5 mm2.
A brass M4x10 screw with star washer securing ring type grounding terminal shall be used.
The negative “-” battery terminal must be properly grounded.
Switchboard and engine must be grounded at a common point. Use as short a cable as
possible to the grounding point.
3.5 Power supply (general)
To ensure proper function:
Use power supply cable min. 2,5mm2
Use fuse
o1 amp for IM-NT
o2 amps for IM-NT-BB or IM-NTC-BB
Maximal continuous DC power supply voltage is 36VDC.
CAUTION!
Switchboard lightning strikes protection according standard regulation is expected!!!
The maximum allowable current through the controller negative terminal is 3 to 8A (depends on the
controller type and binary output load).
HINT
For more information on technical data regarding supply, inputs, outputs etc. please refer to
IGS-NT-Instalation Guide.
3.6 Power supply fusing (general)
Always use according fuse (1Amp or 2Amps) when
connection controller, extension modules or relays to
a power source.
See the diagram for proper fusing.
Binary outputs
Battery 24V DC
- +
IM-NT
IM-NT-BB
or
IM-NTC-BB
Extension module
T1A or T2A
T2A
T1A