HITACHI TD000A Temperature Controller

The HITACHI TD000A is a state-of-the-art 1/16 DIN temperature controller designed for demanding industrial applications requiring precise and stable temperature regulation. It features a bright dual-LED display showing process value (PV) and setpoint (SV) simultaneously, and accepts a wide range of input sensors including thermocouples (J, K, R, S, T, etc.), RTDs (Pt100), and linear current/voltage signals. Equipped with advanced PID control with auto-tuning, the TD000A ensures minimal overshoot and fast response to process disturbances.

Key Features

• Universal Input: Accepts thermocouples, RTDs, 4–20 mA, 0–10 VDC, and 0–50 mV signals, selectable via front panel or software.

• PID Auto-Tuning: Automatically calculates optimal PID parameters for the process, saving commissioning time and improving control quality.

• Dual Outputs: Two relay outputs (SPDT, 3A/250VAC) can be configured for heating/cooling control or alarm signaling.

• High Accuracy: ±0.2% of span for thermocouples and ±0.1% for RTDs, with cold-junction compensation.

• Programmable Setpoint: Supports up to 8 patterns of ramp/soak profiles for batch processes (optional).

• IP65 Front Panel: Resistant to dust and water, suitable for washdown environments.

Technical Specifications

• Power Supply: 100–240 VAC, 50/60 Hz (24 VAC/DC option available)

• Input Types: Thermocouple (J, K, R, S, T, B, E, N), RTD (Pt100), DC current (4–20mA), DC voltage (0–10V, 0–50mV)

• Control Outputs: 2 relays (SPDT, 3A/250VAC); optional 4–20mA or SSR driver

• Control Action: PID, PI, PD, P, or ON/OFF with adjustable hysteresis

• Alarm Outputs: Up to 2 alarms (absolute, deviation, band, etc.)

• Communication: Optional RS-485 Modbus RTU

• Operating Temperature: -10°C to +55°C

• Certifications: CE, UL, cUL

Applications

The TD000A is widely used in plastics (injection molding, extrusion), packaging (heat sealers), food processing (ovens, fryers), and laboratory equipment. Its robust design and versatile inputs make it suitable for both simple and complex thermal processes. The auto-tuning feature simplifies startup for processes with varying thermal loads.

Configuration and Operation

All parameters are accessible through the front panel keypad and menu-driven interface. The controller includes a password protection feature to prevent unauthorized changes. For advanced applications, the optional RS-485 communication module allows integration with SCADA or PLC systems, enabling remote monitoring and recipe management.

Reliability and Environmental Compliance

Engineered for long life in industrial environments, the TD000A withstands vibration, temperature extremes, and electrical noise. Its IP65 front bezel protects against moisture and dust ingress. The controller meets CE and UL standards, ensuring safe and reliable operation worldwide.

With its powerful control algorithms and flexible I/O, the HITACHI TD000A temperature controller delivers precise thermal management for a wide array of industrial processes.

Applications

The LYA210A is essential in process industries such as water treatment, chemical processing, and HVAC, where precise analog control is required. Typical applications include regulating pump speeds via VFDs, positioning control valves for flow or pressure control, and driving chart recorders for data logging. It can also be used in testing and simulation systems to generate analog test signals.

Integration and Configuration

When installed in a Hitachi PLC rack, the LYA210A is automatically detected by the CPU. Using Hitachi's programming software (Pro-H or EC Runner), engineers can assign output ranges, set scaling, and configure fail-safe behaviors for each channel. The module's data registers are directly accessible in the user program, enabling real-time updates of analog outputs based on PID calculations or sequence logic.

Reliability and Environmental Compliance

The module is designed for industrial control panels and is tested for immunity to electrical fast transients, electrostatic discharge, and radiated RF interference per IEC 61000-4 standards. Its operating temperature range of 0°C to 55°C suits most indoor industrial environments. The LYA210A carries CE and UL marks, confirming compliance with international safety and EMC directives.

The HITACHI LYA210A analog output module combines flexibility, accuracy, and reliability, making it a cost-effective solution for expanding analog control in Hitachi-based automation systems.