ComAp InteliGen NT BaseBox Gen-Set Controller

Name: ComAp InteliGen NT BaseBox Gen-Set Controller
Brand: ComAp
SKU: IG-NT-BB

A DIN-rail gen-set controller for standby and paralleling plants

The ComAp InteliGen NT BaseBox (order code IG-NT-BB) is a comprehensive controller for single or multiple gen-sets running in standby or parallel mode. It has no display of its own: it is designed to be used with a detachable colour InteliVision 5 or InteliVision 8 display, and it can be fitted on a DIN rail or, together with an InteliVision display, in a panel door.

The datasheet lists load sharing and VAr sharing over CAN, virtual shared inputs and outputs, an advanced power management function and customisable load control in parallel to the mains. Single or multiple sets can run in island mode or in parallel to the mains with an automatic back-up function. Support for engines with an electronic control unit is included, together with an internal PLC, timers and force values. The datasheet was issued on 6/24/2020 for hardware version 2.0 and software version 3.1.0.

Technical specifications

Parameter	Specification
Order code	IG-NT-BB
Controller type	Gen-set controller, BaseBox without display; used with InteliVision 5 or InteliVision 8
Datasheet version	HW 2.0, SW 3.1.0, issued 6/24/2020
Power supply	8-36 V DC; drop-out immunity 20 ms from 8 V; consumption 0.4 A at 8 V, 0.15 A at 24 V, 0.1 A at 36 V
Operating / storage temperature	-40 to +70 C / -40 to +80 C
Operating altitude	2000 m for max 480 V; 4000 m for max 400 V
Generator and mains voltage	3 phase-neutral generator and mains/bus inputs, range 277 V, accuracy 1 %, 40-70 Hz
Current inputs	3-phase generator and 1-phase mains current, 5 A, galvanically isolated, accuracy 2 % of 5 A
Binary inputs / outputs	12 non-isolated inputs, 4.7 kOhm; 12 non-isolated outputs, 0.5 A (2 A per group)
Analog inputs	3, switchable voltage, resistance or current: 0-5 V DC, 0-2500 Ohm, 0-20 mA, 10 bit
Speed pick-up	Magnetic pick-up, 2 Vpk-pk to 50 Veff, 4 Hz to 15 kHz
AVR and governor outputs	AVR: 5 V TTL PWM or +/-10 V DC via IG-AVRi; governor: +/-10 V DC or PWM 500-3000 Hz
Communications	RS232, RS485 (terminal only), display port, CAN1 for external modules, CAN2 for intercontroller communication
Heat radiation	16 W
Standards	CE; EN 60068-2-6, EN 60068-2-27, EN 60068-2-30, EN 60068-2-64, EN 61010-1

Extension modules and displays

The datasheet lists plug-in extension through CAN modules: Inteli IO8/8 (8 inputs, 8 outputs, 2 analog outputs), Inteli AIN8, AIN8TC, AIO9/1, IS-AIN8, IGS-PTM, IGL-RA15 (15 LED outputs), I-AOUT8, the InteliBridge-NT internet bridge and the I-LB+ PC link. Related products named by ComAp are the InteliVision 5 (5.6 inch colour), InteliVision 8 (8 inch, USB capable), InteliVision 12Touch and 18Touch, the ECON-4 digital speed governor and the I-Step stepper driver. The unit supports ANSI functions including 25 synchro-check, 27/59 under and over voltage, 32R reverse power, 40 excitation loss, 50/51 overcurrent, 81O/81U frequency and 81R ROCOF.

Selection and ordering notes

Choose the display together with the controller, because the BaseBox cannot be operated locally without one. Send the engine make and ECU type, the AVR and speed governor interface, the number of sets in the paralleling group and the required communication. For newer projects ComAp also offers later controllers; see for example the published ComAp InteliGen4 200 paralleling controller. Related controllers are grouped in Diesel Generator Spare Parts.

How the ComAp IG-NT-BB works

The IG-NT-BB is the controller that watches and runs a generator set. It reads generator and mains voltage and current, engine speed from a pick-up, and sensor values on its analog inputs. From these it decides when to start the engine, close the breaker, share load with other sets and stop on a fault. Outputs drive the starter, fuel valve and breakers, and PWM or analog outputs trim the speed governor and the voltage regulator. A CAN link ties sets together for load sharing. A detachable InteliVision display gives the operator a screen.

Where the ComAp IG-NT-BB (IG-NT-BB) is used

Standby generator sets
Sets running in parallel with each other
Island mode power plants
Back-up sets paralleled to the mains
Engines with an electronic control unit

Selection checklist for the ComAp IG-NT-BB (IG-NT-BB)

Single set or several sets
InteliVision 5 or InteliVision 8 display
DIN rail or door mounting
Binary inputs and outputs needed
Governor and regulator interface
Engine ECU communication
Power supply of 8 to 36 V DC
Operating temperature range

Installation, commissioning and maintenance notes for the IG-NT-BB

Mount the unit on a DIN rail and wire the voltage and current inputs through fuses and transformers with the right polarity. Connect the engine signals and the breaker outputs. Link the display to the display port and the sets to each other on the CAN bus. Load the configuration, set the nominal values and run test starts without load before live operation.

Requesting a quotation for the ComAp IG-NT-BB (IG-NT-BB)

Please send the number of sets, the display, the engine type, the options and the quantity. Seven Star LLC serves industrial customers in Oman and the GCC and replies with a quotation based on the information provided.

IG-NT-BB measurement inputs

The inputs take three-phase generator voltage and mains voltage up to 277 V, and 5 A current inputs that are galvanically isolated.

IG-NT-BB binary and analog I/O

There are 12 binary inputs, 12 binary outputs and 3 analog inputs that switch between voltage, resistance and current.

IG-NT-BB communications

The ports are RS232, RS485, a display port, CAN1 for external modules and CAN2 for communication between controllers.

IG-NT-BB supply and temperature

The supply is 8 to 36 V DC. The operating range is minus 40 to plus 70 degrees C.

Controller records for the IG-NT-BB

Save the configuration file, the firmware version and the setpoints for each set.

Choosing the right IG-NT-BB display

Choose the display size from how much information the operator needs at the panel door.

Documents and quotation

The ComAp datasheet is attached to this page. Seven Star LLC supplies ComAp controllers on request, quoted against the exact order code. Confirm the hardware and firmware version, and whether a replacement for an installed NT-generation unit is needed, before ordering.

ComAp gen-set controllers

The ComAp range covers single gen-set controllers such as InteliLite 4, paralleling controllers such as InteliGen and InteliSys, engine controllers, microgrid and battery storage controllers, remote displays, communication modules and the WebSupervisor monitoring tool. ComAp datasheets give the order code, the supported plug-in modules and the extension modules for each controller.

Frequently Asked Questions