LDHJBNAC CH102 Digital PID Temperature Controller User Manual

1. Introducere

This manual provides detailed instructions for the installation, operation, and maintenance of the LDHJBNAC CH102 Digital PID Temperature Controller. This device is designed for precise temperature control in various industrial and commercial applications, featuring a relay output for controlling heating or cooling elements.

Caracteristici cheie:

• Operare simplificată: Designed for ease of use with straightforward parameter setting.
• Precizie ridicată: Provides precise temperature display and control.
• Montare: Features flush mounting and secure screw terminals for installation.
• Aplicație largă: Suitable for light industry, chemistry, machinery, metallurgy, ceramics, petrification, food & beverage, ovens, furnaces, and plastic extruder heating processes.

2. Produs terminatview

The CH102 controller features a clear digital display for Process Value (PV) and Set Value (SV), along with indicators for AT (Auto-Tuning), OUT1 (Output 1), OUT2 (Output 2), ALM1 (Alarm 1), and ALM2 (Alarm 2). Control buttons include SET, R/S (Run/Stop or Reset), and Up/Down arrows for navigation and value adjustment.

Figure 2.1: Front panel of the CH102 Temperature Controller, showing PV/SV displays and control buttons.

3. Configurare și instalare

Before installation, ensure the power supply is disconnected. The CH102 is designed for flush mounting. Carefully follow the wiring diagram provided on the side of the unit for correct connections.

3.1 Instrucțiuni de cablare

Refer to the diagram below for proper electrical connections. Incorrect wiring can damage the unit or connected equipment.

Figure 3.1: Side panel with wiring diagram for power, input, and output connections.

• Power Supply (AC 100-240V): Connect to terminals 1 and 2.
• Relay Output (OUT1): Connect to terminals 3 and 4 (Normally Open - NO).
• Alarm Output (ALM1/ALM2): Connect to terminals 7, 8, 9 (NO/NC).
• Temperature Sensor Input (Type K Thermocouple or RTD): Connect to terminals 10, 11, 12. Ensure correct polarity for thermocouples.

Figura 3.2: Detaliat view of the screw terminals for secure wiring connections.

Atenţie: Read the operation manual before use. Otherwise, injury or accident may happen.

4. Instrucțiuni de utilizare

The CH102 controller is designed for intuitive operation. The upper display (PV) shows the current process temperature, while the lower display (SV) shows the set target temperature.

4.1 Setarea temperaturii țintă (SV)

1. Apăsați tasta SET Apăsați butonul o dată. Afișajul SV va începe să clipească.
2. Utilizați Up (▲) și Jos (▼) arrow buttons to adjust the target temperature to your desired value.
3. Apăsați tasta SET button again to confirm the new SV and exit the setting mode. The SV display will stop flashing.

4.2 Accessing Advanced Parameters

To access advanced parameters such as PID settings, alarm configurations, or input type selection:

1. Țineți apăsat butonul SET button for approximately 3-5 seconds until the display changes to show a parameter code.
2. Utilizați SET button to cycle through different parameter codes.
3. Utilizați Up (▲) și Jos (▼) arrow buttons to adjust the value of the currently displayed parameter.
4. După reglare, apăsați SET to save the change and move to the next parameter, or press and hold SET again to exit the advanced parameter mode.

4.3 Auto-Tuning (AT) Function

The auto-tuning function helps the controller automatically determine optimal PID parameters for your specific heating/cooling system. To initiate auto-tuning:

1. Ensure the system is at a stable temperature, preferably near the desired SV.
2. Access the advanced parameter menu (refer to Section 4.2).
3. Locate the auto-tuning parameter (often labeled "AT" or similar). Set its value to "1" or "ON".
4. Exit the parameter menu. The "AT" indicator on the front panel will illuminate, and the controller will begin the auto-tuning process. This may involve several cycles of heating and cooling.
5. Once auto-tuning is complete, the "AT" indicator will turn off, and the controller will operate with the newly calculated PID parameters.

5. Întreținere

The LDHJBNAC CH102 Temperature Controller requires minimal maintenance to ensure long-term reliable operation.

• curatenie: Periodically wipe the front panel with a soft, dry cloth. Avoid using abrasive cleaners or solvents.
• Conexiuni: Verificați periodic toate conexiunile cablurilor pentru a vă asigura că sunt sigure și fără coroziune.
• Mediu: Ensure the operating environment remains within the specified temperature and humidity ranges to prevent damage. Avoid excessive dust or moisture.

6. Depanare

This section provides solutions to common issues encountered with the CH102 Temperature Controller.

7. Specificații