Intelligent Modular Unit

Definition

A modular unit is a mechanical and electrical assembly containing one or more products to perform a function in a switchboard (incoming protection, motor command, and control).

The circuit breaker with its internal communicating components ( MicroLogic control unit or MicroLogic trip unit) and external ULP modules (IO module) connected to one communication interface is called an Intelligent Modular Unit (IMU).

An IMU is composed around a circuit breaker from the following ranges:

MasterPacT MTZ circuit breakers
MasterPacT NT/NW circuit breakers
ComPacT NS 1600b-3200 circuit breakers
ComPacT NS 630b-1600 circuit breakers
PowerPacT P- and R- frame circuit breakers
ComPacT NSX circuit breakers
PowerPacT H-,J-, and L- frame circuit breakers

ULP Modules Per Circuit Breaker Range

The following table lists the compatible ULP modules for each range of circuit breakers.

ULP Module	Part Number	MasterPacT MTZ with ULP Port Module and MicroLogic X Control Unit	MasterPacT NT/NW or ComPacT or PowerPacT P- and R-Frame with BCM ULP Module and MicroLogic Trip Unit	ComPacT NSX or PowerPacT H-, J-, and L-frame with BSCM or BSCM Modbus SL/ULP Module and/or MicroLogic Trip Unit
IFE Ethernet interface for one circuit breaker	LV434001 LV434010	✓	✓	✓
IFE Ethernet switchboard server	LV434002 LV434011	✓	✓	✓
EIFE Embedded Ethernet interface for one MasterPacT MTZ drawout circuit breaker	LV851001	✓	–	–
Spare part kit EIFE for one MasterPacT MTZ1 drawout circuit breaker	LV851100SP	✓	–	–
Spare part kit EIFE for one MasterPacT MTZ2/MTZ3 drawout circuit breaker	LV851200SP	✓	–	–
IFM Modbus-SL interface for one circuit breaker	TRV00210 STRV00210	–	✓	✓
IFM Modbus-SL interface for one circuit breaker	LV434000	✓	✓	✓
FDM121 front display module for one circuit breaker	TRV00121 STRV00121	–	✓	✓
IO input/output application module for one circuit breaker	LV434063	✓	✓	✓
USB maintenance interface or Universal Test Adapter (UTA) module	TRV00911 STRV00911	–	✓	✓

For more information on the ULP System and its components, refer to the ULP System User Guides in Related Documents.

Communication Architecture

A	FDM128 Ethernet display for eight devices
B	FDM121 front display module for one circuit breaker
C	IFE Ethernet interface for one circuit breaker
D	IFE Ethernet switchboard server
E	IFM Modbus-SL interface for one circuit breaker
F	IO input/output application module for one circuit breaker
G	MasterPacT MTZ1 or MTZ2/MTZ3 drawout circuit breaker
H	MasterPacT MTZ1 or MTZ2/MTZ3 fixed circuit breaker
I	MasterPacT NT/NW circuit breaker
J	ComPacT NS/PowerPacT M-,P,- and R-frame circuit breaker
K	ComPacT NSX /PowerPacT H-, J-, and L-frame circuit breaker
L	ULP port module
M	EIFE Embedded Ethernet Interface for one MasterPacT MTZ drawout circuit breaker
N	ULP line termination
O	RJ45 plug/plug ULP cord
P	Circuit breaker BCM ULP cord
Q	NSX cord

Remote Controller

A remote controller is a device that is able to communicate with an IMU using a communication interface, such as the IFE server. For example, FDM128 Ethernet display for eight devices, supervisor, PLC, BMS, SCADA system, and so on, are remote controllers.

For more information on Modbus registers and commands, refer to the Modbus Communication Guides in Related Documents.