Fuji NB2U36R-14 NB Basic Unit | MICREX-NB Compact

All-in-One PLC for Small to Medium Control Tasks

This compact basic unit integrates CPU, power supply, and I/O in one housing. The Fuji NB2U36R-14 provides 36 digital I/O points for small machine control applications. It accepts 24V DC input signals from sensors and push buttons. Relay outputs drive solenoids, contactors, and indicator lights directly. Consequently, this module eliminates the need for a multi-rack system.

I/O Configuration & Memory Specifications

The Fuji NB2U36R-14 features a built-in programming port for easy code uploads. You can expand I/O using additional NB series modules up to 256 total points. A lithium battery preserves the user program during power interruptions. The unit operates reliably in temperatures from 0°C to 55°C. Therefore, this controller suits conveyor systems, packaging machines, and small assembly stations.

Parameter	Detailed Specification
Operating Temperature	0°C to +55°C
Storage Temperature	-20°C to +70°C
Humidity Range	20% to 90% RH (no condensation)
Digital Inputs	20 points (24V DC, sink/source)
Digital Outputs	16 points (relay, 2A per point)
Total I/O Points	36 points (built-in)
Max Expandable I/O	256 points
User Memory	8 KB (battery-backed RAM)
Programming Language	Ladder diagram
Programming Port	1 x RS-232C
Bit Operation Speed	2 µs per instruction
Relay Output Life	100,000 operations (rated load)
Status LEDs	POWER, RUN, ERROR, BATT
Expansion Interface	1 x ribbon cable connector
Power Supply	24V DC external
Current Draw	250 mA typical
Energy Storage	Lithium battery (3-5 year life)

Installation & System Integration

You mount the Fuji NB2U36R-14 on a standard DIN rail inside your control panel. Connect 24V DC power to the dedicated power terminals on the top. Wire your sensors to the 20 input terminals on the upper section. Wire your actuators to the 16 output terminals on the lower section. For larger systems, connect expansion modules using the ribbon cable.

Operational Advantages & Relay Output Benefits

The Fuji NB2U36R-14 saves significant panel space compared to modular PLCs. You can program this unit using standard Fuji NB series software tools. Each input and output channel includes an LED for instant status verification. The relay outputs provide physical isolation between PLC circuits and field devices. Therefore, this compact PLC handles 2A loads suitable for small motors and solenoids.