ComAp IG-NTC, IG-EE, IG-NT, IG-EEC User Manual

Copyright © 2006-7 ComAp s.r.o.

ComAp, spol. s r.o.

Světova 7, 180 00 Praha 8, Czech Republic

Tel: [phone], Fax: [phone]

Technical support hotline: [phone]

E-mail: [e-mail]

, 74Hwww.comap.cz

USER GUIDE

Compact Controller for Stand-by and Parallel Operating Gen-sets

Inteli New Technology

Modular Generator Controller

Multiple Internal engines application – SW configuration

MINT - GeCon

IG-NT, IG-NTC, IG-EE, IG-EEC

Software version IGS-NT-GeCon-1.4, June 2007

Inteli NT GeCon MINT, SW Version 1.4, ©ComAp – June 2007
IGS-NT-GeCon-MINT-1.4.PDF

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Table of Contents

Table of Contents ...............................................................................................................................................2

General guidelines..............................................................................................................................................3

What is described in this manual? .................................................................................................................3

General description ............................................................................................................................................5

Description of the controller system (with all options)....................................................................................5

Comparing of IG-NT-GeCon-1.3 to the standard IG-NT-MINT-2.0................................................................5

Available documentation ................................................................................................................................5

Functions ............................................................................................................................................................6

Modified setpoints ..........................................................................................................................................6

Power management .......................................................................................................................................8

PLC functions ...............................................................................................................................................14

Multi language support.................................................................................................................................14

Protections and Alarm management ................................................................................................................15

Gen-set operation states ..................................................................................................................................18

Inputs and Outputs ...........................................................................................................................................19

Virtual and physical modules .......................................................................................................................19

Binary Inputs - Control .................................................................................................................................19

Binary inputs – Status information ...............................................................................................................24

Binary outputs – Breaker control..................................................................................................................24

Binary outputs – Control loops.....................................................................................................................25

Binary outputs – Status information .............................................................................................................26

Binary outputs – Fixed protection outputs....................................................................................................28

Binary outputs – Configurable prog. States .................................................................................................30

Binary outputs – Power management..........................................................................................................32

Analog inputs................................................................................................................................................33

Analog outputs .............................................................................................................................................33

Analog values...............................................................................................................................................33

Setpoints...........................................................................................................................................................34

ProcessControl.............................................................................................................................................34

Basic settings ...............................................................................................................................................39

Engine protect ..............................................................................................................................................43

Analog protect ..............................................................................................................................................46

Gener protect ...............................................................................................................................................46

Pwr management .........................................................................................................................................52

Sync/Load ctrl...............................................................................................................................................56

Volt/PF ctrl....................................................................................................................................................59

Force value...................................................................................................................................................61

Load shedding..............................................................................................................................................62

Timer settings...............................................................................................................................................63

Act. calls/SMS ..............................................................................................................................................63

Date/Time.....................................................................................................................................................65

Controller configuration and monitoring ...........................................................................................................66

Direct connection to the PC .........................................................................................................................66

GenConfig functions.....................................................................................................................................66

InteliMonitor..................................................................................................................................................67

Modbus protocol...........................................................................................................................................67

Value and setpoint codes.............................................................................................................................67

Technical data..............................................................................................................................................67

Inteli NT GeCon MINT, SW Version 1.4, ©ComAp – June 2007
IGS-NT-GeCon-MINT-1.4.PDF

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General guidelines

What is described in this manual?

This manual describes IGS-NT-GeCon - „MINT“ software configuration. The Generator controller software
configuration is designed for multiple sets applications with internal load sharer and synchronizer.

What is the purpose of this manual?
This manual provides general information on how to configure and operate the controller.
This manual is intended for use by:

Operators of gen-sets
Gen-set control panel builders
For everybody who is concerned with installation, operation and maintenance of the gen-set

!! Warnings !!
Remote control

The IG-NT controller can be remotely controlled. In case that maintenance needs to be done to the gen-set,
check the following to ensure that the engine cannot be started.

To be sure:

Disconnect remote control via RS232 line
Disconnect input REMOTE START/STOP

or

Disconnect output STARTER and output GCB CLOSE/OPEN

The controller contains a large number of configurable setpoints, because of this it is impossible to describe
all of its functions. These are subject to change from SW version to SW version. This manual only describes
the product and is not guaranteed to be set for your application on arrival.

Text

PAGE (Capital letters in the frame) buttons on the front panel

Break Return (Italic) set points
Generator protections (Bold) Set point group

REMOTE START/STOP (Capital letters) binary inputs and outputs
Cyan background Valid for IS-NT only

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.

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.

Inteli NT GeCon MINT, SW Version 1.4, ©ComAp – June 2007
IGS-NT-GeCon-MINT-1.4.PDF

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WARNING – VERY IMPORTANT !!!

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 !!!

Switch the controller to MAN mode and disconnect the Binary outputs Starter and Fuel

to avoid unexpected automatic start of gen-set and GCB closing.

!!! CAUTION !!!

Dangerous voltage

The terminals for voltage and current measurement should never be touched.
Properly connect the grounding terminals.
Do not disconnect the CT terminals for any reason.

Adjust set points

All setpoints are preadjusted to their typical values. But the set points 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 !!!

Inteli NT GeCon MINT, SW Version 1.4, ©ComAp – June 2007
IGS-NT-GeCon-MINT-1.4.PDF

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General description

Description of the controller system (with all options)

NT Family controllers are comprehensive AMF-controllers for single and multiple generating sets operating
in stand-by or parallel modes. A modular construction allow 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.
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 the Mains operation is a standard feature. Isolated parallel and Power Management System
support are optional. Forward and reverse synchronizing, Generator protections, Mains protection including
vector shift, load and power factor control are the major functions provided. Interfacing to foreign
synchronizers and load sharers is supported.
The key feature of the controller is its easy-to-use operation and installation. Predefined configurations for
typical applications are available as well as user-defined configurations for special applications.

Comparing of IG-NT-GeCon-1.3 to the standard IG-NT-MINT-2.0

• GeCon does not take care of Engine control – option adjustable by setpoints.

• GeCon does not directly control GCB – option adjustable by setpoints.

• GeCon accepts external – “by hand” Engine and GCB control.

• GeCon can control the engine via Binary start/stop output signals only – see below. The independent

Engine controller (e.g. ID-DCU) is expected.

• Synchronizing and unloading timeouts can be disabled by setpoint setting (or Force value function).

• Interface GeCon to engine controller is provided by I/O wires no by communication line.

Available documentation

IGS-NT-Application guide-2.1.pdf
IGS-NT-Installation guide-2.1.pdf
IGS-NT-Operator guide-2.1.pdf
GenConfig-2.1.pdf
InteliMonitor-2.1.pdf

Application examples.
All modules wiring.
Brief panel buttons, display handling guide.
PC configuration tool guide.
PC monitoring tool guide.

Inteli NT GeCon MINT, SW Version 1.4, ©ComAp – June 2007
IGS-NT-GeCon-MINT-1.4.PDF

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Functions

The IGS-NT-LSM+PMS dongle enables the Load sharing and Power management functions.

Modified setpoints

Below mentioned are GeCon specific setpoints only.
Group Setpoint Option Function

StartStopBtn

ENABLED
DISABLED

Standard panel Start/Stop buttons function.
Panel Start/Stop buttons are disabled.

Process control

ProtectionMode

ACTIVE
NOT ACTIVE

Standard MINT function.
2-nd level protections are blocked.

Sync timeout

1-1800s
NO TIMEOUT

Standard MINT function.
Unlimited synchronizing time.

GCB open level

1-100%
NO LEVEL

Standard MINT function.
No generator power open level detection.

Sync/Load ctrl

GCB open del

1-1800s
NO TIMEOUT

Standard MINT function.
Unlimited unloading procedure.

Hint:

All setpoints can be Forced by Binary input(s) to another value (or switched between ENABLED and
DISABLED).

Based on setpoint settings there are three possible operational modes HAND – MAN - AUT:
“HAND” MAN AUT

Basic setting ControllerMode

MAN MAN AUT

StartStopBtn

DISABLED ENABLED ENABLED

Process control

ProtectionMode

NOT ACTIVE ACTIVE ACTIVE

Sync timeout

NO TIMEOUT 1-1800s 1-1800s

GCB open level

NO LEVEL 1-100% 1-100%

Sync/Load ctrl

GCB open del

NO TIMEOUT 1-1800s 1-1800s

Hint:

It is possible to configure (Force value) “HAND” – MAN switching via Binary input.

OFF mode

Use OFF mode to block controller functions (even if is switched on). OFF mode is used for controller
firmware or configuration change.
Binary outputs (e.g. GCB CLOSE/OPEN) are not energized, all closed Binary outputs are opened when
controller is switched to OFF mode.
Gen-set cannot be started and operated from IG-NT-GeCon controller – no response for panell buttons and
Binary input commands.

Hint:

Switching to OFF mode is blocked on running engine to avoid accidental engine stop by mode change or by
firmware or configuration programming.

Inteli NT GeCon MINT, SW Version 1.4, ©ComAp – June 2007
IGS-NT-GeCon-MINT-1.4.PDF

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HAND mode

IG-EE GeCon

MINT

MCU

GCB feedback

GCB

close/open

Vg, Ig, Vb

RS232 - PC

Speed control
(Sync/Load ctrl)

GCB

START

STOP

(ReadyToLoad)

G

G

External Engine

Start / Stop

External GCB

Close / Open

generator
measuring

Process control: StartStopBtn = DISABLED

ProtectionMode = NOT ACTIVE

Sync/Load ctrl: Sync timeout = NO TIMEOUT

GCB open level = NO LEVEL
GCB open del = NO TIMEOUT

MCU

MAN mode

IG-EE GeCon

MINT

MCU

RS232 - PC

GCB

START

STOP

(ReadyToLoad)

G

GCB close/open

Remote start/stop

System s/s

G

Vg, Ig, Vb

Generator measuring

Process control: StartStopBtn = ENABLED

ProtectionMode = ACTIVE

Sync/Load ctrl: Sync timeout =

GCB open level =
GCB open del =

GCB feedback

Speed control
(Sync/Load ctrl)

Engine Start / Stop

is activated from GeCon

or externaly

GCB Close / Open is

activated from GeCon

or externaly

MCU

Engine start can be activated from

o Engine controller (e.g. ID-MCU)
o GeCon panel – Start button
o GeCon BI: StartButton
o Remotely e.g. from InteliMonitor

GeCon BI: ReadyToLoad initiates GeCon “Running” state” - activates Gener protect: Min stab time a Max

stab time within the generator electric protections are activated.

Gen-set is loaded/unloaded from

o GeCon panel – GCB button
o GeCon BI: GCBButton
o Direct GCB “hand” control
o Remotely e.g. from InteliMonitor

Inteli NT GeCon MINT, SW Version 1.4, ©ComAp – June 2007
IGS-NT-GeCon-MINT-1.4.PDF

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GCB closing from controller can be blocked by BI: GCB disable.

AUT mode

Engine start or Power management is activated from GeCon BI: Sys start/stop

GeCon BI: ReadyToLoad initiates GeCon “Running” state” - activates Gener protect: Min stab time a Max

stab time within the generator electric protections are activated.

Gen-set starts synchronizing and is loaded/unloaded automatically based on

o Power management setting
o GeCon BI: Sys start/stop

GeCon will stop engine started from MCU when BI Sys start/stop or due to Power management function.

Power management

Automatic gen-set start / stop function based on load changes and/or Running hours or Engine size.
Following functions are available:

Power management in kW

Guarantees adjustable load reserve (load step) in kW. Suitable for load demand-based optimization.

Activation: #Pwr mgmt mode = ABS (kW)

Power management in kVA

Guarantees adjustable load reserve (load step) in kVA. Suitable for generator- or busbar dimensioning­based optimization.

Activation: #Pwr mgmt mode = ABS (kVA)

Inteli NT GeCon MINT, SW Version 1.4, ©ComAp – June 2007
IGS-NT-GeCon-MINT-1.4.PDF

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Relative power management in %

Guarantees that the engines be not continuously loaded more than to a certain level, leaving less than
selected relative load reserve. Suitable for engine life-based optimization.

Activation: #Pwr mgmt mode = REL (%)

Gen1

Priority 1

Gen2

Priority 2

Gen3

Priority 3

Actual power [ kW or kVA ]

Start/Stop conditions in Power management

Reserve Actual Reserve Start condition Stop condition

Absolute
kW / kVA

ARstrt = ΣPg

Nom

– ΣPg

Act

ARstp = ΣPg*

Nom

– ΣPg

Act

ARstrt < #LdResStrt ARstp > #LdResStp

Relative % RRstrt = (ΣPg

Nom

– ΣPg

Act

) / ΣPg

Nom

RRstp = (ΣPg*

Nom

– ΣPg

Act

) / ΣPg*

Nom

RRstrt < #%LdResStrt RRstp > #%LdResStp

Where
ARstrt Actual Absolute reserve in kW or kVA - for engine start calculation.
ARstp Actual Absolute reserves in kW or kVA - for engine stop calculation.
RRstrt Actual Relative reserve in % - for engine start calculation.
RRstp Actual Relative reserves in % - for engine stop calculation.
ΣPg

Nom

Sum of Nominal power of all gen-sets on the bus.

ΣPg*

Nom

Sum of Nominal power of all gen-sets on the bus apart of the one, which is going to be stopped.

ΣPg

Act

Sum of Actual power of all gen-sets on the bus = system load.

Hint:

Optional functions in absolute or relative Power management are:

- Running hours balancing (equalization),

- Load demand (different size) engines swap and

- Power management of two or more gen-set groups (bus tie support).

Inteli NT GeCon MINT, SW Version 1.4, ©ComAp – June 2007
IGS-NT-GeCon-MINT-1.4.PDF

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Running hours balancing

The gen-sets priorities are automatically swapped to balance engine running hours. Up to 32 controllers are
supported.

Activation: #PriorAutoSwap = RUN HOURS EQU
Important setpoints: RunHoursBase , #RunHrsMaxDiff

Different sized engines (Load demand) swap

Three running engines (priorities) are swapped based on load demand (one “small” engine runs on “small”
load and swaps to another one “big” engine that runs when load increases).

Activation: #PriorAutoSwap = LD DEMAND SWAP
Important setpoints: #PwrBandContr1, #PwrBandContr2, #PwrBandContr3, #PwrBandContr4,
#PwrBandChngDe.

Inteli NT GeCon MINT, SW Version 1.4, ©ComAp – June 2007
IGS-NT-GeCon-MINT-1.4.PDF

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Pwr management of splitted group

Important setpoints: Control group, GroupLinkLeft, GroupLinkRight

When a Bus-tie disconnects the gen-set group the Power management can operate separately on each of
them.

G1 G2 G3 G4 G5

LOAD1 LOAD 2

Basic settings:
Contr.addr = 1
Pwr management:

Control group = 1
GroupLinkLeft = 1
GroupLinkRight = 2

BTB

BI Group link

1.controller

2.controller

3.controller 4.controller 5.controller

Basic settings:
Contr.addr = 2
Pwr management:

Control group = 1
GroupLinkLeft = C
GroupLinkRight = C

Basic settings:

Contr.addr = 3

Pwr management:

Control group = 2
GroupLinkLeft = C
GroupLinkRight = C

Basic settings:

Contr.addr = 4

Pwr management:

Control group = 2
GroupLinkLeft = C
GroupLinkRight = C

Basic settings:

Contr.addr = 5

Pwr management:

Control group = 2
GroupLinkLeft = C
GroupLinkRight = C

Control group 2.

Control group 1.

BTB feedback

Load shedding

All LOAD SHED outputs are activated (closed) to trip the unessential load when gen-set goes to island:

a) When GCB is closed after mains fail and gen-set starts in AUT mode.
b) When MCB opens from parallel to mains operation in AUT mode.
c) Before MCB is opened in MAN mode by button.

The load shedding function is active in all controller modes except OFF.
Load shedding has three steps and each step is linked with its own Load shed x binary output. There is only
one load shed level and delay for all three steps as well as recon level and delay. Load shed can only move
from one step to the next, e.g. No LoadShed to LdShed S1 to LdShed S2 to LdShed S3 and vice versa.

If manual reconnection of the load is desired, the AutoLd recon setpoint needs to be disabled (AutoLd recon
= DISABLED) and the MAN load recon binary input needs to be configured.
Rising edge on this input resets the controller to a lower stage, but only if the load is under the Ld recon level

at that moment.

Hint:

If no Load Shedding outputs are configured, there is no record to history and no scrren timer indication of the
activity of this function.

Inteli NT GeCon MINT, SW Version 1.4, ©ComAp – June 2007
IGS-NT-GeCon-MINT-1.4.PDF

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Load reconnection – automatic -> AutoLd recon = ENABLED

Ld recon del Ld recon delLd recon del

BO Load shed 2

Ld recon level

Gen-set power

BO Load shed 3

BO Load shed 1

opened

opened

opened

Load reconnection – manual -> AutoLd recon = DISABLED

System Base load

Gen-set group is controlled on constant (or adjustable) power. The Baseload value can by changed by
setpoint or via analog input.

Important setpoints: ProcessControl: #SysLdCtrlPtM = BASELOAD; #SysBaseload; SysBaseLdMode.

Local Baseload

Selected gen-set from island or mains parallel running group can be loaded to constant LocalBaseload
value. This engine is taken out from Load sharing and Power management. LocalBaseload value is reduced

only when common group (actual) load is lower than this value.

The gen-sets in the group will try to match their LocalBaseloads (when more than one) based on their

controller addresses, so the first limited would be the one with the highest CAN address. I.e. this function will

Inteli NT GeCon MINT, SW Version 1.4, ©ComAp – June 2007
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switch-off automatically in one or more controllers if there is not enough load to cover all the requested
LocalBaseloads.

Important setpoints: ProcessControl: LocalBaseload.

System Base power factor

Gen-set group is controlled in mains parallel to keep a constant (or adjustable) power factor.

Important setpoints: ProcessControl: #SysPFCtrlPtM = BASEPF; #SysPwrFactor.

Import-Export

Gen-set group is controlled to keep constant (or adjustable) Import or Export value. The external controller
InteliMains NT must be connected on the CAN2 to control gen-set group kW I/E.

Important setpoints: ProcessControl: #SysLdCtrlPtM = LDSHARING.

Import/Export power factor

Gen-set group is controlled to keep constant (or adjustable) Import or Export power factor.

Important setpoints: ProcessControl: #SysLdCtrlPtM = VSHARING. The external InteliMains NT controller

must be connected on the CAN2 to control gen-set group PF I/E.

Service time alarm

Engine starting procedures

• Independent Engine controller (e.g. InteliDrive) is expected.

• Interface GeCon to InteliDrive is provided by single BI/BO wires (no communication line).

• GeCon does not directly control engine via Starter, Fuel, Ignition – only sends Start request and Stop

requests.

• Automatic engine start/stop is allowed in GeCon - AUT mode when Power management function is

active.

• GeCon does not measure RPM from pickup.

Engine stopping procedures

• Active Generator protection does not stop running engine (except Power management in AUT mode).

• Engine stop command from MCU opens GCB (via BO Ready to load without Unloading).

Engine “running” conditions

• The additional condition to close GCB (start synchronizing) is GeCon BI Ready to load (coming from

MCU) in both MAN, AUT modes.

Inteli NT GeCon MINT, SW Version 1.4, ©ComAp – June 2007
IGS-NT-GeCon-MINT-1.4.PDF

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PLC functions

Following functions are available in IG-NT-GeCon firmware.

Config item Selection

Available

IG-NT/EE

Note

Log Func I.

16

AND, OR
2 to 8 inputs

Log Func II.

2

XOR, RS
2 inputs

Comp Hyst

2

Analog input
Two limits
Binary output

Delay

4

Adjustable rising and falling edge delay or pulse
on edge.

Multi language support

NT Family controllers support up to five Languages that is possible to switch during controller duty. Every
terminal (i.e. Remote display or PC-InteliMonitor) can be switched to different language. Use PC-GenConfig

- Translator tool to translate texts to another language.
Default application archives contain all texts in English only.

Inteli NT GeCon MINT, SW Version 1.4, ©ComAp – June 2007
IGS-NT-GeCon-MINT-1.4.PDF

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Protections and Alarm management

Protection groups

There are two groups of protections in the controller: fix and customer configurable.
Setpoint group
Analog protections Configurable Analog protect
Generator protections Configurable Gener protect

Mains protections –

should not be used in
MINT application

Configurable Mains protect

Fix protections Fix Engine params,

Gener protect,
Analog protect

Protection types

Because of limited (adjustable) GeCon influence to the Engine and GCB (depends on configuration and
wiring) the GeCon protection system is more focused to fail indication. All Protection types are available
because of IGS-NT system compatibility even if some Protection types has the same result in GeCon (e.g.
BOC, Stp, Sd).

Level Protection

types

Abbre
viation

Gen-set action Record

1

History record

Hst none History only

1

Alarm only

Al none Alarmlist only

1

Warning

Wrn none Alarmlist and History

2

Off load

OfL AUT modes:

Controller opens GCB without soft
unloading, gen-set runs 1 minute at
Nominal RPM. Gen-set state changes to
Running 1 minute after Off load activation.
Controller starts automatically GCB
synchronizing (or closes GCB) when Off
load is deactivated (no fault reset
necessary).
MAN mode:
Controller opens GCB without soft
unloading and the gen-set runs without
load until operator intervention.
All generator protections are active during
Off load duty.

Alarmlist and History

2

Breaker Open
& Cool-down

BOC Controller opens GCB without soft

unloading, gen-set state changes to
Running.

Alarmlist and History

2

Slow stop

Stp Soft unloading then the GCB opens, BO:

Stop pulse; the gen-set state changes to
Stopping.

Alarmlist and History

2

Shutdown

Sd Controller opens GCB without soft

unloading.

Alarmlist and History

X

Sensor fail

Fls Can be indicated when Analog input value

is ±6% out of sensor characteristic range.
Fls can optionally activate corresponding
(e.g. Sd) Analog input protection as well.

Alarmlist and History

Inteli NT GeCon MINT, SW Version 1.4, ©ComAp – June 2007
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Default protections in MINT

Fix – firmware based
Generator: Corresponding setpoints

IDMT overcurrent BOC Basic settings: Nomin current; Gener protect:

2Inom del
IDMT Active power BOC Gener protect: OverldStrtEval; 2POvrldStrtEvDel
Shortcurrent BOC Gener protect: Ishort; Ishort del

Generator voltage: Ug1>, Ug1<,
Ug2>, Ug2<, Ug3>, Ug3<

BOC Gener protect: Gen >V BOC; Gen <V BOC; Gen

V del.

Generator voltage: Ug1>>,
Ug2>>, Ug3>>

Sd Gener protect: Gen >V Sd; Gen V del.

Generator frequency: fg<, fg> BOC Gener protect: Gen >f; Gen <f; Gen V del

Bus:

Bus voltage (limits derived from
generator protections)

- Gener protect: Gen >V BOC; Gen <V BOC; Gen
V del.

Bus frequency (limits derived from
generator protections)

- Gener protect: Gen >f; Gen <f; Gen V del

Default - configurable

Reverse power (UnivState 1) BOC Gener protect: Reverse power; ReversePwr del
Batt <V, Batt >V (UnivState 2) Wrn Analog protect: Batt >V; Batt <V; Batt V del
EarthFaultCurr (UnivState 5) BOC Gener protect: EarthFaultCurr; EthCurr del

Bus voltage and frequency protections - limits and indications

Basic settings:

VoltProtSelect = PHASE-NEUTRAL

Gener protect: Gen >V BOC

Gen <V BOC
Gen >V Sd
Gen V del
Gen >f
Gen <f
Gen f del

Bus V L1-N

Bus freq

Bus V L2-N
Bus V L3-N

Basic settings:

VoltProtSelect = PHASE-PHASE

Gener protect: Gen >V BOC
Gen <V BOC

Gen >V Sd
Gen V del
Gen >f
Gen <f
Gen f del

Bus V L1-L2
Bus V L2-L3
Bus V L3-L1

Bus freq

Inteli NT GeCon MINT, SW Version 1.4, ©ComAp – June 2007
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Generator voltage and frequency protections - limits and indications

Basic settings:

VoltProtSelect = PHAS E-NEUTRAL

Gener protect: Gen >V BOC
Gen <V BOC

Gen V Sd
Gen V del
Gen >f
Gen <f
Gen f del

BOC L1 under
BOC L2 under

BOC L3 under

BOC L1 over
BOC L2 over
BOC L3 over

Gen V L1-N

BOC fg under
BOC fg over

Gen freq

Gen V L2-N
Gen V L3-N

BOC L12 under
BOC L23 under

BOC L31 under
BOC L12 over
BOC L23 over

BOC L31 over

Gen V L1-L2

BOC fg under
BOC fg over

Gen freq

Gen V L2-L3
Gen V L3-L1

Basic settings:

VoltProtSelect = PHASE-PHASE

Gener protect: Gen >V BOC
Gen <V BOC

Gen V Sd
Gen V del
Gen >f
Gen <f
Gen f del

Hint:

Additional protections can be configured using the Protection – Universal states tool. Limits for additional

generator/bus voltage Universal protections are in Phase-Neutral format not depends on Basic settings:
VoltProtSelect setpoint.

Shutdown override

If the Binary input Sd override is closed, all 2nd level protections are disabled to allow engine run in an
emergency situation, e.g. sprinkler devices power supply.
All protections are shown in Alarmlist and recorded into History, but the controller doesn’t stop the engine
because of them. If the input is deactivated and some protections are still active or not yet reset, the
controller starts to take these protections into account and consequently stops the engine.

Hint:

All 2nd level protections are locked out, except of these:

- Emergency stop

- Overspeed

- Underspeed (only if Fuel solenoid = GAS ENGINE)

Inteli NT GeCon MINT, SW Version 1.4, ©ComAp – June 2007
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Gen-set operation states

Gen-set can operate in following states
Not ready Gen-set is not ready to start
Init After controller power supply switch on
Stopped No Running indication
Starting Waiting for ReadyToLoad signal
Running Waiting for GCB connection or start synchronizing
Soft load Gen-set power is ramping up
Loaded Gen-set is loaded
Soft unld Gen-set power is ramping down
Stopping Stopping procedure before the BI ReadyToLoad is opened.
Stopped Stopped - initial state – waiting for engine start

Breakers conditions
Brks Off GCB opened
Synchro Gen-set is synchronizing (bus voltage OK, GCB is

open)

MultIslOp Multiple Island - gen-set is running loaded in island

parallel mode (MCB is open, GCB is closed)

MultParOp Multiple Parallel – gen-set is running loaded in

mains parallel mode (MCB is closed, GCB is
closed)

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Inputs and Outputs

Virtual and physical modules

Number of I/O can be extended and project wiring can be reduced using the following extension and virtual
modules.

Module name

BIN

BOUT

AIN

AOUT

Note

IGS-NT controller

x x x x Number of I/O depends on type.

IGS-PTM

8 8 4 1 Standard I/O extension module.

IS-AIN8

- - 8 - Standard I/O extension module.

IS-BIN16/8

16 8 - - Standard I/O extension module.

I-CB

x x x x Configurable communication bridge.

IGL-RA15

- 15 - - 15 Green, Red, Yellow LED panel.

I-AOUT8

- - - 8 8 Analog outputs

VPIO

8 8 - - Virtual periphery I/O module.

SHBIN

8 - - - SHared (virtual) Binary INput module

SHBOUT

- 8 - - SHared (virtual) Binary OUTput module

SHAIN

- - 4 - Shared (virtual) Analog Input module

SHAOUT

- - - 4 Shared (virtual) Analog OUTput module

PLC

x x x x Programmable (internal) logic module.

Binary Inputs - Control

AccessLock int

If the input is closed, no setpoints can be adjusted and no commands can be issued from the controller front
panel.

Hint:

As the controller mode (OFF-MAN-AUT-TEST) is one of the setpoints, not even that can be changed.
The START, STOP, FAULT RESET and other control buttons are disabled as well.

AccessLock D#2

If the input is closed, no setpoints can be adjusted and no commands can be issued from IG/IS-Display #2.

AccessLock ext

If the input is closed, no setpoints can be adjusted and no commands can be issued from any external
terminal = via direct/modem/internet connection to the controller.

Hint:

Use these inputs to lock out the selected terminals for setpoint changes and commands. Such a terminal can
only be used for monitoring.

Alt brightness

Active binary input switches controller display backlight to the alternative setting. Alternative intensity of the
backlight can be set independently using the controller panel buttons.

Hint:

Input available in IG-NT/EE and modifications only. For IG-Display and IS-Display modules, this binary input
is located in the Power connector and it’s function is fixed (not configurable).

Inteli NT GeCon MINT, SW Version 1.4, ©ComAp – June 2007
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20

FaultResButton

Binary input has the same function as Fault reset button on the controller front panel.

HornResButton

Binary input has the same function as Horn reset button on the controller front panel.

StopButton

Binary input has the same function as Stop button on the controller front panel. It is active in MAN mode
only.

StartButton

Binary input has the same function as Start button on the controller front panel. It is active in MAN mode
only.

GCBButton

Binary input has the same function as GCB button on the controller front panel. It is active in MAN and
TEST modes only. In TEST mode in some special cases only (see description of the TEST mode in chapter
Mode and functions description).

Hint:

All Binary inputs, which simulate controller front panel buttons, are edge (no level) sensitive, and they react
on the rising edge only. Minimal input pulse duration is 0,2 seconds.

Remote OFF

If closed, the controller mode is forced to OFF. When opened controller is switched to previous mode.

Hint:

Use this input to block the engine start during service.

Remote MAN

Active binary input forces the controller mode to MAN.

Remote AUT

Active binary input forces the controller mode to AUT.

Hint:

Use this input to switch the controller to automatic operation, e.g. using the external key switch.

Force block 1 …3

Three binary inputs for user-specific blocking of programmable protections. If the particular input is active, all
the protections with the corresponding “Force block X” block type are blocked.

Force value 1 …16

If any of the particular 16 input s is active, the Force value function on that corresponding channel gets
active, forcing an alternative value to the selected setpoint.

IssueActCallC1 …3

Rising edge on these binary inputs forces an active call to be issued via the corresponding channel.

Hint:

Can be used to send e.g. SMS in the case of a mains failure to report that the engine has successfully
started (linked from the output Gen params OK) and later on to report that the engine has stopped again
(linked from the inverted output Fuel solenoid).

Sys start/stop

If the input closes, the controller may start the engine (in AUT mode only). Request to start depends on state
of setpoint

Pwr management: Pwr management state and, if ENABLED, on the actual need of load reserve.

I.e. all controllers in the system should have their Sys start/stop inputs active, but it doesn’t mean that all
engines are running.

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21

If

Pwr management: Pwr management is DISABLED, the closed input requests the engine to start

regardless of the load reserves.
Gen-set is running both in mains parallel or island parallel (depends on mains condition). Reaction on input

state change is delayed by setpoints #SysAMFStrtDel / #SysAMFStopDel in island mode, by 1 sec in mains

parallel mode (= input MCB feedback active).

Emergency stop

If the input is activated, engine shutdown is immediately issued. It has a character of a “Shutdown” ­protection type, however some special behaviour follows in the case of its activation:

Sd override

If the input is closed, all 2nd level protections are disabled to allow engine run in an emergency situation, e.g.
sprinkler devices power supply.
All protections are shown in Alarmlist and recorded into History, but the controller doesn’t stop the engine
due to their occurence. If the input is deactivated and some protections are still active or not yet reset, the
controller starts to take these protections into account and consequently stops the engine.

Hint:

All 2nd level protections are locked out, except of:Emergency stop

Emerg. manual

The controller behaves like when switched to OFF mode if input is closed. Opens all binary outputs Fuel
solenoid, Cooling pump signals, etc... except:

Stop solenoid output does not close.
The output terminals that are configured with inversion are closed.

Detection of "running engine" condition and subsequent alarm message "Sd Stop fail" is blocked. The
controller shows "Emerg Man" state and the engine can not be started. Generator current and power
(energy) measurement is active in this mode, regardless of the actual state of the engine.
After the binary input EMERG. MANUAL is open again, the controller recovers to previous mode and
behaves according to the actual situation. Should the engine run and any of the conditions to start the engine
was active, it will keep the engine running.
Function is active in any controller mode and activation of this input is written to history.

Hint:

The function is intended especially for Marine gen-sets which are supposed to be started manually while the
controller has no power supply. To recover successfully from this state, only the signals Stop solenoid, GCB
ON/OFF coil should be used for engine and breaker control, as the other outputs are continuous active
during engine run (e.g. Fuel solenoid) and it is not possible to switch them between more control sources.

Load res 2 …4

If the input LOAD RES 2 or 3 or 4 is closed, the setpoint set Pwr management: #LoadResStrt X +

#LoadResStop X (#%LdResStrt X + #%LdResStop X) will be selected. Higher index has higher priority when

more these binary inputs are closed together. When not configured or not active, setpoint set

#LoadResStrt

1 + #LoadResStop 1 (#%LdResStrt 1 + #%LdResStop 1) is used.

Hint:

All controllers operating in Power management must have the same Load reserves selected.
It is possible to use Virtual periphery to share the signals between more controllers on the CAN bus. In such
case one controller is a server which physically has the signals connected and other controllers get these
signals via CAN bus.

Setpoint set selection depends on the #Pwr mgmt mode – if set to ABS (kW or kVA), #LoadResStrt X type
setpoints are active, if set to REL (%), #%LdResStrt X type setpoints are active.

MinRun power 1 …3

When binary input MinRun power 1 or 2 or 3 is closed, the corresponding setpoint Pwr management:

#MinRun power 1 or 2 or 3

is selected. Higher index has higher priority when more these binary inputs are
closed together. When not configured or not active, minimal running power is 0, i.e. the system works only
based on Load reserves.

Hint:

All controllers operating in Power management must have selected the same MinRun power input.