Fuji FTU123B Temperature Controller

Temperature Control Architecture and Input Configuration

The Fuji FTU123B functions as a dedicated temperature controller for industrial thermal processing applications. It accepts thermocouple and resistance temperature detector (RTD) input signals for precise temperature measurement. This unit delivers proportional, integral, and derivative (PID) control algorithms for stable thermal regulation. It manages heating and cooling processes in ovens, furnaces, and environmental chambers.

This temperature controller features single-loop control architecture with configurable setpoints and alarm thresholds. It provides auto-tuning functionality that automatically calculates optimal PID parameters for each application. Consequently, engineers can deploy this unit without extensive manual tuning procedures.

Physical Specifications and Interface Connections

The FTU123B measures 12.0 cm in height, 6.5 cm in width, and 10.5 cm in depth. It weighs approximately 0.30 kg, allowing for straightforward installation in standard Fuji FTU Series racks. This module occupies a single slot on the baseplate and connects directly to the backplane bus. The front panel features LED indicators for power, output status, and alarm conditions. These visual indicators provide immediate feedback during system startup and troubleshooting.

A removable terminal block accommodates all field wiring connections for the temperature sensor inputs. This terminal block accepts wire sizes ranging from 0.2 to 1.5 mm² (24 to 16 AWG). The module also includes shield connection terminals for minimizing electrical noise interference on sensor signals.

Power Consumption and Output Capabilities

This temperature controller draws 150 mA from the backplane at 24 VDC for internal logic operation. It provides relay output for heating or cooling element control with a rating of 3 Amps at 240 VAC. The module also features alarm output that activates when process values exceed configured limits. It incorporates energy storage capacitors that maintain control parameters during brief power interruptions.

Technical Specifications

System Integration and Thermal Process Control

The FTU123B integrates seamlessly with Fuji FTU Series PLCs and industrial automation systems. It supports Modbus communication for remote monitoring and setpoint adjustments from operator interfaces. Users can configure control parameters using Fuji standard programming software or front-panel controls. This temperature controller enables precise thermal management for industrial ovens, injection molding machines, and packaging equipment.