1. Introduction
Welcome to the user manual for the Autonics TC4S series temperature controllers, models TC4S-24R and TC4S-14R. These devices are designed for precise temperature regulation in various industrial and commercial applications. This manual provides essential information for safe and efficient operation, including installation, setup, operation, maintenance, and troubleshooting. Please read this manual thoroughly before operating the device and keep it for future reference.
Figure 1: Front view of the Autonics TC4S Temperature Controller. This image shows the display, control buttons, and indicator lights on the front panel of the device.
2. Safety Precautions
To ensure safe operation and prevent product damage, observe the following safety precautions:
- Always disconnect power before performing any wiring or maintenance.
- Ensure proper grounding to prevent electric shock.
- Do not disassemble or modify the unit. Refer all servicing to qualified personnel.
- Install the unit in an environment free from excessive vibration, dust, moisture, and corrosive gases.
- Use the specified power supply voltage. Incorrect voltage may cause damage.
- Ensure all wiring connections are secure and correct according to the wiring diagrams.
3. Product Overview
The Autonics TC4S series temperature controllers feature a compact design and precise control capabilities. Key components include:
- Display: Shows current temperature (PV) and set temperature (SV).
- Control Buttons: Used for setting parameters and navigating menus.
- Indicator Lights: Provide status feedback (e.g., output ON, alarm).
- Terminal Block: Located at the rear for power, sensor input, and control output connections.
4. Installation and Wiring
4.1 Mounting
The TC4S series controllers are designed for panel mounting. Ensure adequate space for ventilation and wiring connections. Cut a panel opening of the specified dimensions (refer to specifications for exact cutout size). Insert the controller into the opening and secure it using the provided mounting brackets.
4.2 Wiring
Connect the power supply, temperature sensor, and control output devices to the terminal block at the rear of the controller. Refer to the wiring diagram typically found on the side of the unit or in the full product datasheet for specific terminal assignments. Ensure all connections are tight and correct to prevent malfunction or damage.
- Power Supply: Connect to the designated power terminals (e.g., 100-240VAC).
- Sensor Input: Connect your temperature sensor (e.g., thermocouple, RTD) to the sensor input terminals. Observe polarity for thermocouples.
- Control Output: Connect your heating/cooling element or relay to the control output terminals. Model TC4S-24R typically features a relay output, while TC4S-14R may have a different output type.
5. Initial Setup
5.1 Powering On
After completing all wiring, apply power to the controller. The display will typically show the current process value (PV) and the set value (SV). The unit will perform a self-test upon initial power-up.
5.2 Basic Parameter Settings
Access the parameter settings menu using the designated buttons (e.g., MODE or SET button). Common initial settings include:
- Input Type: Select the type of temperature sensor connected (e.g., K-type thermocouple, Pt100 RTD).
- Temperature Unit: Choose between Celsius (°C) or Fahrenheit (°F).
- Control Mode: Select between ON/OFF control or PID control, depending on application requirements.
Refer to the detailed parameter list in the full product manual for advanced settings and their functions.
6. Operation
6.1 Setting the Target Temperature (Set Point)
To set the desired temperature, press the SET button. The SV display will flash, allowing you to adjust the value using the UP/DOWN arrow buttons. Press SET again to confirm the new set point.
6.2 Understanding Display Indicators
- PV (Process Value): Displays the current measured temperature.
- SV (Set Value): Displays the target temperature.
- OUT Indicator: Illuminates when the control output is active (e.g., heating element is ON).
- ALM Indicator: Illuminates when an alarm condition is met.
6.3 Control Modes
The controller supports different control modes:
- ON/OFF Control: The output turns ON when the PV is below the SV and OFF when it exceeds the SV (or vice versa for cooling). This mode is simple but can lead to temperature cycling.
- PID Control: Proportional-Integral-Derivative control provides more precise and stable temperature regulation by calculating the required output based on the error, integral of the error, and derivative of the error. Auto-tuning functions are often available to automatically calculate optimal PID parameters.
7. Maintenance
7.1 Cleaning
Regularly clean the front panel with a soft, dry cloth. Do not use abrasive cleaners, solvents, or water, as these can damage the display or internal components.
7.2 Inspection
Periodically inspect wiring connections for looseness or signs of damage. Ensure the ventilation openings are not obstructed. Check for any unusual noises or smells during operation.
7.3 Storage
If storing the unit for an extended period, ensure it is kept in a dry, dust-free environment within the specified storage temperature and humidity ranges.
8. Troubleshooting
This section addresses common issues you might encounter with your temperature controller.
| Problem | Possible Cause | Solution |
|---|---|---|
| Controller not powering on | No power supply; incorrect wiring; blown fuse. | Check power connections; verify wiring against diagram; replace fuse if necessary. |
| Incorrect temperature reading (PV) | Sensor disconnected or faulty; incorrect sensor input type setting; sensor outside measurement range. | Check sensor wiring and connection; verify sensor type setting in parameters; ensure sensor is suitable for the temperature range. |
| Output not activating | Set point not reached; output mode incorrect; faulty output device; alarm condition active. | Adjust set point; check control mode (ON/OFF, PID); test external heating/cooling device; check alarm settings. |
| Temperature oscillates widely | PID parameters not tuned correctly; ON/OFF control with large hysteresis. | Perform auto-tuning for PID parameters; adjust hysteresis for ON/OFF control. |
9. Specifications
Key technical specifications for the Autonics TC4S series temperature controllers:
- Models: TC4S-24R, TC4S-14R
- Control Method: ON/OFF control, P, PI, PD, PID control
- Input Sensor: Thermocouple (K, J, T, E, N, R, S, B, C, G, L, U, P), RTD (Pt100, JPt100) - Specific types may vary by model.
- Output Type: Relay output (TC4S-24R), SSR drive output, Current output - Specific type varies by model.
- Power Supply: 100-240VAC 50/60Hz (standard), 24VAC 50/60Hz / 24-48VDC - Specific voltage varies by model.
- Display Method: 7-segment LED (PV: red, SV: green)
- Control Accuracy: ±0.5% FS ±1 digit (thermocouple/RTD)
- Material: Plastic casing
- Operating Temperature: -10°C to 50°C (14°F to 122°F)
- Operating Humidity: 35 to 85% RH (non-condensing)
10. Warranty and Support
This Autonics temperature controller is covered by a standard manufacturer's warranty against defects in materials and workmanship. The warranty period typically begins from the date of purchase. Please retain your proof of purchase for warranty claims.
For technical support, service, or warranty inquiries, please contact your authorized Autonics distributor or the customer support department. Provide the model number (TC4S-24R or TC4S-14R) and a detailed description of the issue when seeking assistance.
For the most up-to-date contact information and detailed warranty terms, please visit the official Autonics website or consult the documentation provided with your purchase.
