ComAp InteliSys SPI Use and maintenance manual

Copyright © 2006 ComAp s.r.o.
ComAp, spol. s r.o.
Světova 7, 180 00 Praha 8, Czech Republic
Tel: [phone], Fax: [phone]
E-mail: 40H[email protected], 41Hwww.comap.cz
AFR CONTROL GUIDE
Compact Controller for Stand-by and Parallel Operating Gen-sets
InteliSysNT
AFR Gen-set Controller
Air Fuel Ratio controller for Lean burn
systems with SPI, SPtM, MINT, COX
Software version IS-NT-AFR-1.0, December 2006

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Table of Contents
Table of Contents .................................................................................................................................... 2
General guidelines................................................................................................................................... 3
Description of the controller system.................................................................................................... 3
Available documentation ......................................................................................................................... 4
Inteli NT general manuals ................................................................................................................... 4
Inteli NT application manuals .............................................................................................................. 5
Inteli NT PC tools manuals.................................................................................................................. 5
Inteli common manuals ....................................................................................................................... 5
Conformity declaration ........................................................................................................................ 6
!! Warnings !! ....................................................................................................................................... 6
Operator interface.................................................................................................................................... 7
InteliSysNT pushbuttons and LEDs ...................................................................................................... 7
Description of InteliSysNT MEASUREMENT screens........................................................................ 12
Users and Passwords ....................................................................................................................... 18
Mode and function description .............................................................................................................. 19
OFF mode ......................................................................................................................................... 19
MAN mode ........................................................................................................................................ 19
AUT mode ......................................................................................................................................... 19
TEST mode (SPtM only) ................................................................................................................... 20
IS–NT Air Fuel Ratio control software ................................................................................................... 21
Hardware........................................................................................................................................... 22
Binary inputs...................................................................................................................................... 24
Binary outputs ................................................................................................................................... 25
Analog inputs..................................................................................................................................... 25
Logical analog values........................................................................................................................ 26
Statistics values ................................................................................................................................ 27
Setpoints – Timers setting................................................................................................................. 28
Setpoints – Engine protect ................................................................................................................ 28
Setpoints – AFR control .................................................................................................................... 29
AFR control chart .............................................................................................................................. 34
Protections ........................................................................................................................................ 35
History and Alarm list records ........................................................................................................... 36
Tips and tricks ................................................................................................................................... 38
Abbreviation list ..................................................................................................................................... 39

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General guidelines
This manual provides general information on how to operate the IS-NT-AFR controller.
This manual is intended for everybody who is concerned with operation and maintenance of the gen-
set.
Description of the controller system
NT family controllers are comprehensive AMF-controllers for single and multiple generating sets
operating in stand-by or parallel modes. Synchronizer, isochronous load sharer, Mains and Generator
protections allow for a total integrated solution for gen-sets in stand-by and parallel modes with
multiple engine support.
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.
The controller automatically starts the gen-set, closes the gen-set C.B. when all conditions are met,
then stops the engine on external signal or by pressing push buttons.
Parallel to Mains operation can be achieved without additional HW. Forward and reverse
synchronizing, Mains protection including vector shift, load and power factor control, earth fault
protection are the major functions provided. Interfacing to foreign synchronizers and load sharers is
supported.
The key feature of NT family controllers is their easy-to-use installation and operation. Predefined
configurations for typical applications are available as well as user-defined configurations for special
applications.
Default applications
There are four default applications: SPI, SPtM, MINT, COX.
SPI Single Parallel Island application - for single gen-sets in parallel with mains or in island
operation; suitable for CHP application; no MCB control
SPtM Single Parallel to Mains application - for single gen-sets in parallel with mains or in island
operation, with AMF support; both MCB and GCB controlled
MINT Multiple application with INTernal control loops - for multiple gen-sets in island parallel or
mains parallel operation; Load Sharing and VAr Sharing controlled internally; PMS
available
COX A special application intended for COoperation with an eXternal supervisory control
system, e.g. PLC. Most internal control sequencies are removed or reduced, all major
actions (synchronizing, load control type) are initiated via binary inputs to the NT controller.

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Available documentation
Inteli NT general manuals
IGS-NT-2.0-Application guide.pdf
Dedicated to gen-set control panel builders and project designers.
Covers above all following items:
•IG/IS-NT hardware options
•Comparison of number of I/O and communication ports in different HW modifications
•Order codes overview
•Applications overview – purpose, connection recommendations, function description
•PLC functions description
•Virtual peripherals – principle and usage
IGS-NT-2.0-Installation guide.pdf
Dedicated to gen-set control panel builders and everybody concerned with installation of the gen-set.
Includes information about following topics:
•Terminals and dimensions of all controllers and peripheral modules
•Recommended wirings
•Controllers’ interface options
•Default sensors
•Speed governor interfaces
•AVR interfaces
•Technical data
IGS-NT-2.0-Operator guide.pdf
Dedicated to everybody concerned with operation and maintenance of the gen-set.
It describes
•Operator interface
•Measurement screens of the NT family controllers
•Modes and function of the controller.
•IG/IS-NT Available documentation list
IGS-NT-2.0-Troubleshooting guide.pdf
Includes description of possible troubles during configuration, adjustment and operation of the
controller.
Consists of two parts:
•List of troubles and their solution
•How to … section with recommended procedures in some typical situations

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Inteli NT application manuals
For each application an appropriate manual is available:
IGS-NT-SPTM-2.0.pdf
IGS-NT-SPI-2.0.pdf
IGS-NT-MINT-2.0.pdf
IGS-NT-COX-2.0.pdf
They include these sections:
•Modes description (OFF, MAN, AUT, …)
•Functions description (e.g. Load shedding, Power management, Start/Stop sequences)
•Protections and alarm management
•Gen-set operation states
•Inputs and outputs
•Setpoints
•List of abbreviations
Inteli NT PC tools manuals
InteliMonitor-2.0.pdf
This manual describes InteliMonitor monitoring PC tool in the following chapters:
•Connection to the controller (Direct, Modem, Internet)
•InteliDDE Server
•Menus description
•Password and access code
GenConfig-2.0.pdf
This manual describes GenConfig configuration PC tool in the following chapters:
•Connection to the controller (Direct, Modem, Internet)
•InteliDDE Server
•Menus description
•Controller configuration steps (Modules, I/O, Setpoints, Protections, History,…)
Inteli common manuals
InteliCommunicationGuide – September 06.pdf
This manual covers communication topics not only regarding IG/IS-NT controllers but also InteliLite
and InteliDrive controllers. It applies to communication between the controller and superior service or
monitoring system but not to communication among the controllers or between the controller and it’s
peripherals (extension modules, ECU).
It is divided into following chapters:
•Local connection
•Remote connection
•Modem connection
•Internet connection
•Active call, SMS, email
•Modbus description
•I-LB, IG-IB communication units
•Modem recommendations
•Recommended converters

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Conformity declaration
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.
!! Warnings !!
Be aware that the binary outputs can change state during and after software
reprogramming (before the controller is used again ensure that the proper
configuration and setpoint settings are set in the controller)!!!
Be aware that gen-set can automatically or remotely start when following
controller terminals are disconnected !!!
•Mains voltage measuring and / or
•Binary outputs for MCB control and / or
•MCB feedback
Switch InteliGenNT to OFF mode and disconnect the Binary outputs Starter and Fuel to
avoid unexpected automatic start of gen-set and GCB closing.
Note:
ComAp believes that all information provided herein is correct and reliable and reserves the right to
update at any time. ComAp does not assume any responsibility for its use unless otherwise expressly
undertaken.
!!! CAUTION !!!
Dangerous voltage
In no case touch the terminals for voltage and current measurement!
Always properly connect grounding terminals!
Take care when disconnecting In/Im3 terminals when the gen-set is stopped.
For safety connect parallel to controller In/Im3 terminals two anti parallel diodes 10A/100V.
In any case do not disconnect generator CT terminals when the gen-set is loaded.
Adjust set points
All setpoints are preadjusted to their typical values. But the setpoints in the “Basic settings”
settings group !!must!! be adjusted before the first startup of the gen-set.
!!! WRONG ADJUSTMENT OF BASIC PARAMETERS
CAN DESTROY THE GEN-SET !!!
The following instructions are for qualified personnel only.
To avoid personal injury do not perform any action not specified in this User guide !!!

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Operator interface
InteliSysNT pushbuttons and LEDs
Pushbuttons:
1. Numeric keypad
Where Function
Setpoints screen Change setpoint value
Menu screen Go to selected display group directly
Measurement screens Go to another screen directly
Language screen Select language directly
History screen If pressed ±button a symbol appears on the
display (bottom right corner) and it is possible to
move by one page of records using arrow
buttons
2. Clear Clears character on the left side of the cursor, exits from menu
3. Enter
1 2 3
4
5
6
7
8
9
24
23102211212015141619
18
12
13
17

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4. Mode→Cycle forward through gen-set operation modes OFFÆMANÆSEMÆAUTÆTEST.
5. ←Mode Cycle backward through gen-set operation modes OFFÅMANÅSEMÅAUT ÅTEST.
6. START Starts the gen-set in MAN or SEM mode.
7. STOP Stops the gen-set in MAN or SEM mode.
8. FAULT RESET Acknowledges faults and alarms.
9. HORN RESET Deactivates the horn (audible alarm).
10. MCB ON/OFF Opens and closes (synchronizes) the Mains circuit breaker in MAN mode
(SPtM application only).
11. GCB ON/OFF Opens and closes (synchronizes) the Generator circuit breaker in MAN mode.
12. ESC
Where Function
Measurement screens,
Alarm list
Go to Menu screen
Setpoints screen Go to Menu screen; within setpoint group, go to
group list
Setpoint edit Leave setpoint edit without changes
History screen Go to Menu screen
FastEdit screen Fast edit exit (to previous measurement screen)
without changes
Language screen Language screen exit (to menu) without save
Table of characters Jump among table of characters, menu and text
line
13. ↑Select the setpoint, setpoint group, select the screen, select history record, increase
setpoint value, edit stringlist value, select language
14. ↓Select the setpoint, setpoint group, select the screen, select history record, decrease
setpoint value, edit stringlist value, select language
15. →In AlarmList screen, shift the Alarm list page down (if more than 7 items), moves history
record displayed columns to the right
16. ←In AlarmList screen, shift the Alarm list page up (if more than 7 items), moves history
record displayed columns to the left, go to Info screen
17. Enter Same as 3.
18. Alarm list Shortcut to Alarm list screen from any other screen
19. History Shortcut to History screen from any other screen
Pushbuttons’ combinations
Following table determines controller functions when ↑, ↓, ←, →, ENTER and PAGE buttons’
combination is pressed:
Where Pushbutton combination Function
Measurement screens,
Alarm list
ENTER + ↑
ENTER + ↓
ENTER + ESC
Contrast increase
Contrast decrease
Info screen
Where Function
Menu screen Go to selected display group (Measurement CU,
Measurement IO, …)
Measurement screens,
Alarm list
Go to FastEdit screen (hold ENTER for 4 sec.) –
then it is possible to adjust selected setpoint
(typically Base load for standard SPtM)
Setpoints screen Go to selected setpoint group
Setpoint edit Start setpoint edit / save changes
History screen Go to the first column of the first history record
FastEdit screen FastEdit exit (to previous measurement screen)
with setpoint change
Language screen Language screen exit (to menu) and save
selection

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Info screen ENTER + ↑
ENTER + ↓
Backlight increase
Backlight decrease
History screen number + ENTER Go to record with this number
LEDs:
20. Mains status LED
21. MCB status LED
22. Load status LED
23. GCB status LED
24. Gen-set status LED
How to select gen-set mode?
Use MODE→or ←MODE to select requested gen-set operation mode OFF – MAN –AUT – TEST. It
is not possible to go directly from OFF to AUT or TEST.
Display menus
There are several display menus (functions) available:
ALARMLIST, MEASUREMENT CU, MEASUREMENT
IO, SETPOINTS, HISTORY, PASSWORD and
LANGUAGE.
Each menu consists of several screens. Pressing the
ESC (repeatedly when necessary) button the menu
screen will be displayed.
Hint:
IS-NT – When pressing ESC on the screen with
characters, focus jumps from menu to bottom line and
table of characters. See picture on the right.
How to view Alarm list?
1. Select the ALARMLIST menu item and press ENTER or press ←in measurements’ screens
to go directly to the Alarm list.
How to view measured data?
1. Select the MEASUREMENT CU menu item and press ENTER.
2. Use ↑and ↓to select the screen with requested data.
How to view IO values?
1. Select the MEASUREMENT IO menu item and press ENTER.
2. Use ↑and ↓to select the screen with requested data.
How to view and edit setpoints?
1. Select SETPOINTS menu item and press ENTER.
2. Use ↑or ↓to select requested set points group.
3. Press ENTER to confirm.
4. Use ↑or ↓to select requested set point.
5. Set points marked ±are password protected.
6. Press ENTER to edit.
7. Use ↑or ↓to modify the set point. When ↑or ↓is pressed for 2 sec, auto repeat function
and speedup is activated. Use ←or →to change the setpoint value by 5% of it’s range.
8. Press ENTER to confirm or ESC to leave without change.
9. Press ESC to leave selected set points group.
How to view the HISTORY menu?
1. Select HISTORY menu item and press ENTER

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2. Use ↑or ↓to select a requested record.
3. Use →or ←to cycle forward/backward through columns of the record.
4. Press ±to cycle through the whole screens of columns/rows.
How to change password?
1. Select USERS/PASSWORD menu item and press ENTER.
2. Use ↑or ↓to select User.
3. Press ENTER to confirm.
4. Select ChangePassword and press ENTER
5. Use ↑or ↓or ←or →to set new password
6. Press ENTER to confirm password
How to set Language?
1. Select LANGUAGE menu item (if not already selected) and press ENTER
2. Use ↑or ↓to select a requested Language.
3. Press ENTER to confirm.
Hint:
If binary inputs Lang sel int A,B,C (for IG-NT/EE internal display and IS-Display with address 1) or
Lang sel #2 A,B,C (for IG-Display and IS-Display with address 2) or Lang sel #3 A,B,C (for IS-Display
with address 3) are used, it is not possible to change languages from Language screen.
Language 01234567
Lang sel xxx A 0 1 0 1 0 1 0 1
Lang sel xxx B 0 0 1 1 0 0 1 1
Lang sel xxx C 0 0 0 0 1 1 1 1
How to change the display contrast?
Press and hold ENTER and use ↑or ↓to adjust the best display contrast.
Hint:
Available from the MEASUREMENT screens only.
How to check the serial number and software revision?
Hold down the ENTER and then press ESC. On the display you can see controller INFO screen for 10
seconds.
InteliGenNT InteliSysNT
Controller INFO screen contains:
1. Controller name (see Basic settings
group)
2. Controller serial number (8 character
number), SW version, ID string and release
date
3. Application: SPtM, SPI, COX…
Using →you can view the INFO2 screen which
contains:
1. Display SW version
2. ID chip and Dongle content
3. Password decoding string
Controller INFO screen contains:
1. Controller name (see Basic settings group)
2. Firmware and release date
3. Controller serial number (8 character
number)
4. Application:SPtM, SPI, COX…
5. Password decode number
6. IS-Display version and release date
7. Encoding: available character sets
Using →you can view the INFO2 screen which
contains:
1. IDch: ID string
2. Dngl: connected dongle
3. Supported code pages
Using →again you can view the INFO3 screen
which contains:
1. IS-Display IDchip: ID string
Hint:
Available from the MEASUREMENT screens only.

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How to view Connection screen on IG-Display?
Press ↑button when in Info screen to see information about IG-Display hardware version and
properties and actual state of communication with the master controller.
How to change the display backlight intensity?
Hold down the ENTER and then press ESC. On the display you can see Controller INFO screen for
10 seconds.
Press and hold ENTER when in INFO screen and use ↑or ↓to adjust the best display backlight.
Backlight intensity is set for one of the two modes, depending on the activity of configurable binary
input Alt brightness (IG-NT/EE and modifications). For IG-Display and IS-Display modules, this binary
input is located in the Power connector and it’s function is fixed (not configurable).
IS-Display with address 1 reads analog input LCD brightness on IS-NT-BB and changes accordingly
display backlight intensity in the range 0-100%.
Hint:
Backlight intensity change available from the MEASUREMENT screens only.
How to find active alarms?
Select Alarmlist menu item and press ENTER or press ←in MEASUREMENT IO or MEASUREMENT
CU menu.
Inverted alarms are still active. Non-inverted alarms are not active, but not yet confirmed.
Press FAULT RESET to accept all alarms (an asterix mark disappears when an alarm is accepted by
FAULT RESET). Non-active alarms immediately disappear from the list.
Active alarm list appears on the screen automatically when a new alarm comes up and Main
MEASUREMENT screen was selected.
Hint:
Alarm list does not activate automatically if the display is switched to any other screen than the first
one of MEASUREMENT (typically the screen that shows menu selector on the upper). The automatic
jump to the alarm list screen will not occur if you are listing through the measured values, set points or
history!
If setpoint Engine protect:ResetActAlarms is set to DISABLED, only inactive alarms can be reset.
If an active alarm is present in the alarm list, controller display blinks every 30 seconds.
When to use GCB ON/OFF button?
The button is disabled in AUT mode.
In MAN and TEST modes it is enabled, but before closing of the circuit beaker, generator voltage and
frequency must be within limits. The controller has internal protection to avoid the breaker closure
without synchronizing.
The controller recognizes automatically:
•if there is mains / bus voltage and the gen-set shall be synchronized before closing the GCB
•or if there is no voltage on the bus and the GCB can be closed without synchronizing.
When to use MCB ON/OFF button?
The button is disabled in AUT mode.
Use this button in MAN or TEST mode to close or open the MCB. Be careful while doing this,
because you can disconnect the load from the mains!!!

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Description of InteliSysNT MEASUREMENT screens
Main menu screen
1. Selection of alarm list, measurement, history, setpoints, languages or user screen.
2. Cursor shows actual selection.
3. Controller mode indication. Black background indicates active mode (MAN mode in the
above example).
4. Timer – events counting time (e.g. prestart, cooling).
5. Engine machine state indication.
6. Electric machine state indication.
7. Actual gen-set power (requested gen-set power).
8. Actual RPM.
9. Indication of access level from the controller panel:
Closed lock No password set
Opened lock Password is set. Password level is visible in opened lock.
10. Controller date and time. Can be set in Date/Time group of setpoints.
1. Alarm list
1. Details of the alarm from ECU
indicated by the cursor are
displayed at the bottom line
(SPN, FMI, OC numbers)
2. Asterisk indicates not accepted
alarms (Fault reset has not
been performed)
3. Alarms displayed inverted are
active
4. Number of active / not accepted
/ all alarms
2. Measurement CU
11 – SPtM Screens Description
2
1
3
4
5
6 7 8
9
10
1
2 4
3

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1. Remote communication
indication and access lock
indication (symbol is visible
when Access lock BI is active).
2. Actual gen-set power.
3. Measure screen address. For
jump to this screen set this
number from the numeric
keypad.
4. Actual engine RPM.
5. Actual power factor.
1. Power control mode (Island /
BaseLd / BldEmLm / PwrI/E /
TbyPwr)
2. PF control mode (Island /
BasePF / PF I/E)
3. Required power value
4. Required PF value
5. Actual Mains active power and
PF values
6. Actual load active power and PF
values
7. Actual gen-set active power and
PF values
1. Generator frequency
2. Generator voltage phase-phase
3. Generator voltage phase-
neutral + triple bargraph
4. Generator current + triple
bargraph
1. Mains frequency
2. Mains voltage phase-phase
3. Mains voltage phase-neutral +
triple bargraph
4. Mains current (3rd phase)/ Earth
fault current
5. Maximal vector shift
1
2
3
4
5
1
2
3
4
1
2
3
4
5
1
2
3
4
6
5
7

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1. Active power (total and per
phase)
2. Power factor (total and per
phase)
3. Reactive power (total and per
phase)
4. Apparent power (total and per
phase)
1. Battery voltage
2. CPU temperature
3. D+ voltage
1. Synchroscope
2. Slip frequency
3. Actual angle between generator
and mains voltage
4. Generator first phase voltage
5. Mains first phase voltage
6. Voltage match of all three ph.
(0–doesn’t match; 1–OK)
7. SRO – Speed Regulator Output
indication in the range
SpeedGovLowLim –
SpeedGovHiLim
8. VRO – Voltage Regulator
Output indication in the range
0 – 100%
Statistics
1. Total engine running hours
2. Total number of starts
3. Total number of unsuccessful
starts
4. Service times (set in Engine
protect group of setpoints)
5. Total gen-set kW hours
6. Total gen-set kVAr hours
Note:
Statistics can be set in InteliMonitor
→Set statistics… after password of
User 0 is entered.
1
2
3
4
1
2
3
1
2
3
4
5
6
7
8
1
2
3
4
5
6

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09/11
kWhours
Day kWhours
kVArhous
PulseCounter 1
PulseCounter 2
PulseCounter 3
PulseCounter 4
10/11
TimerAct T1-4
TimerAct T5-8
TimerAct T9-12
TimerAct T13-16
11/11
AFR control
Mixer position
Mixer feedback
MAP required
MAP actual
MAT actual
O2 actual
Mixer mode
Measurement IO
SPtM Screens Description
IS-NT analog inputs
1. Analog input 1 (e.g. Oil
pressure)
2. Analog input 2 (e.g. Primary
water temperature)
3. Analog input 3 (e.g. Fuel level)
4. analog input 4 (e.g. Secondary
water temperature)
1
2
4
3

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IS-NT binary inputs indication
IS-NT binary outputs indication
If the temperatures of cylinders are
configured/measured it is possible
to see bargraphs of these
temperatures on the separate
screen.

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Another screen shows the
differences of cylinder temperatures
from the average temperature.
Further screens are automatically added if I/O extension modules or ECU are connected to the
controller.
History
1. Bottom lines show record
number, reason, date and time
even if other columns are
actually displayed
Users/Password
This screen shows list of users.
To enter or change password of
selected user press Enter.
1

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Users and Passwords
Up to 8 users can be defined in the system. Every user has it’s own defined level of access rights.
There are seven levels of password protection.
User O – Administrator has always level 7.
Hint:
The lock mark ±appears before a set point name (on controller screen) if the setpoint is password
protected.
The lock mark is removed only when the password is set from controller’s front panel.
The lock mark is still visible on controller screen even if the password is set from different terminal.
Even though one level may have been set from the front panel, the affected set points are not
accessible from InteliMonitor (direct or Modem) until this level is set in InteliMonitor (direct or Modem).
Set point screen opened from front panel is automatically closed 15 minutes after the last key has
been pressed.
It is possible to protect remote Start, Stop, GCB and MCB commands from InteliMonitor. This seven
level command protection can be configured in GenConfig.
EnterPassword
Password is a five-digit number (0 - 65535). Only setpoints associated with the entered password level
can be modified.
Use ↑or ↓to select the desired password and then press ENTER.
Use ←or →to move the value by 5% of the range.

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Mode and function description
There are four gen-set operation modes: OFF - MAN – AUT – TEST in SPtM application. There are
three gen-set operation modes: OFF - MAN – AUT in SPI, COX and MINT application.
To select the mode use MODE→or ←MODE.
OFF mode
•No start of the gen-set is possible. Outputs STARTER, GCB CLOSE/OPEN and FUEL
SOLENOID are not energized.
•No reaction if buttons START,STOP,GCB ON/OFF are pressed.
•MCB behavior depends on AMF settings: MCB opens on setpoint:
MAINSFAIL: When power-cut comes, MCB opens. After Mains returns, MCB closes with MCB
close del.
GEN RUNNING:When power-cut comes, MCB stays closed until the gen-set starts and
produces voltage within limits.
MAN mode
1) To start the gen-set press START.
2) When the generator voltage is within limits (adjusted in the setpoints group Generator
protections) GCB green LED on the front panel lights.
3) Press GCB ON/OFF to close the GCB. If the generator voltage is out of the limits, controller does
not respond to the GCB ON/OFF .
a) If controller detects dead bus, immediately closes GCB OPEN/CLOSE output.
b) If controller detects voltage on the bus, starts synchronizing.
4) To stop the engine press STOP
a) controller unloads the gen-set, opens GCB CLOSE/OPEN. Unloading is active only when
binary input MCB feedback is closed or other gen-set is connected to bus. In other case GCB
CLOSE/OPEN opens immediately.
b) Gen-set is cooled down and stopped.
Hint:
Controller does not respond to external signals and/or conditions. The gen-set is fully in manual
control; there is no automatic way to stop it (except protections). The gen-set stays running until STOP
button is pressed.
Controller does not take place in Power management in MINT application
AUT mode
Gen-set is controlled based on external signals (Rem start/stop, Sys start/stop) or conditions (AMF,
Peak shaving, Power management system, …).
Hint:
Engine does not stop, if other condition for automatic starts is active.
Example: If peak stop condition occurs, but REMOTE START/STOP is active, engine stays running.
Controller does not respond to GCB ON/OFF , MCB ON/OFF, STOP, START buttons and
corresponding remote InteliMonitor or Modbus commands.
Set Basic setting: FltRes GoToMAN = ENABLED to avoid automatic engine start when pressing
FAULT RESET after Shut down or Slow stop alarm.
Engine can start automatically without warning when pressing FAULT RESET after shut down alarm.
!!!!! VERY IMPORTANT !!!!!!

InteliSysNT -AFR-Abstract, SW version 1.0, ©ComAp – December 2006 20
IS-NT-AFR-1.0-Abstract.pdf
TEST mode (SPtM only)
Use TEST mode for Gen-set start test if the Mains is OK or to transfer the load to the gen-set when
Mains fail is announced in advance.
Hint:
The controller does not respond to GCB ON/OFF , STOP, START in Ret from test = AUTO.
Engine automatically starts, when TEST mode is selected.
Engine can start automatically without warning when pressing FAULT RESET after shut down alarm.
Baseload
Process control: Load ctrl PtM = BASELOAD
Gen-set power is kept at value given by Process control:Base load setpoint.
Internal Import export
ProcessControl: Load ctrl PtM = IMP/EXP
Process control: IE measurement = IM3 CT INPUT
Gen-set power is controlled to keep the import load at the level given by setpoint Process control:
Import load value.
Controller measures Import/Export value via current transformers connected to In/Im3 terminal. The
value of L3 is then multiplied by 3 to give an estimation of the actual Imp/Exp.