1. Introduction
This manual provides essential information for the installation, operation, and maintenance of the Coolmay TK8050H Human Machine Interface (HMI) touch screen LCD panel. The TK8050H is designed for industrial automation control, featuring a 5-inch display with 800x480 pixel resolution. Please read this manual thoroughly before using the device to ensure safe and efficient operation.
2. Technical Specifications
The following table details the technical specifications of the Coolmay TK8050H HMI:
| Specification | Description |
|---|---|
| Model | TK8050H |
| Display Size | 5 inch |
| Resolution | 800*480 pixels |
| Working Environment Temperature | Ambient: 0℃ to 50℃ | Storage: -20℃ to 70℃ |
| Working Environment Humidity | 20% to 90% (non-condensing) |
| RAM / ROM | 128MB / NOR Flash 128MB |
| CPU | 1GHz Dual Core |
| USB Download Port | Yes (Type-C) |
| SD Card Port | Yes |
| Serial Interface | RS485, RS232 |
| Touch Type | 4-wire resistance panel |
| Protection Level | IP65 (front panel) |
| Certification | CE |
3. Product Features
- Operating System: Based on a stable, efficient, secure, and reliable Linux system.
- High Performance: Equipped with an industrial high-performance Dual Core 1GHz CPU.
- Functional Diversity: Features diversified functional modules for multifunctional and control diversification.
- Multiple Interfaces: Includes RS485, RS232, Type-C USB download port, and SD card port for versatile connectivity.
- Quality Control: Qualified by RoHS and CE standards, ensuring high-standard quality.
- Protection: Front panel offers IP65 protection against dust and water ingress.
4. Installation and Setup
4.1. Physical Installation
The TK8050H HMI is designed for panel mounting. Ensure the installation environment meets the specified temperature and humidity requirements (0℃ to 50℃, 20-90% non-condensing).
- Prepare Panel Cut-out: Create a cut-out in your control panel according to the HMI's dimensions. The cut-out size is 143*86mm.
- Insert HMI: Carefully insert the HMI into the prepared cut-out from the front of the panel.
- Secure HMI: Use the provided mounting clips or screws to secure the HMI firmly to the panel from the rear.
4.2. Wiring and Connections
Refer to the rear view of the HMI for port locations and ensure proper wiring for power and communication.
- Power Supply: Connect a stable DC24V power supply to the FG, 0V, and DC24V terminals. Ensure correct polarity.
- Communication Ports:
- COM1/COM2: Use these RS232/RS485 ports for communication with PLCs or other industrial devices.
- LAN: Connect an Ethernet cable for network communication (if applicable to your model/configuration).
- USB Host: For connecting USB devices such as a mouse, keyboard, or USB flash drive.
- HMI/PLC: These ports are typically used for programming and debugging the HMI and connected PLC.
- SD Card: Insert an SD card for data storage or program transfer.
4.3. Initial Power-Up
After completing all physical and electrical connections, apply power to the HMI. The device should power on and display the boot screen, followed by the configured user interface.
5. Operation
The Coolmay TK8050H HMI provides an intuitive touch interface for monitoring and controlling industrial processes. The specific screens and functionalities will depend on the application program loaded onto the HMI.
5.1. Navigating the Interface
Use the touch screen to interact with buttons, input fields, and display elements. The interface typically includes:
- Operation Screen: Main screen for process control and monitoring.
- Parameter Settings: Adjust various operational parameters.
- I/O Monitoring: View the status of input/output signals.
- System Settings: Configure HMI specific settings like language, backlight, and communication.
- Alarm Records: Access historical alarm data.
5.2. Programming and Configuration
The HMI can be programmed using dedicated software provided by Coolmay. Connect the HMI to a PC via the Type-C USB download port or Ethernet port for program transfer and configuration. The video below demonstrates some of the HMI's interface and functionality.
6. Maintenance
Regular maintenance ensures the longevity and optimal performance of your Coolmay TK8050H HMI.
- Cleaning: Gently clean the touch screen and casing with a soft, damp cloth. Avoid abrasive cleaners or solvents that could damage the display or plastic.
- Environmental Control: Ensure the operating environment remains within the specified temperature and humidity ranges to prevent damage.
- Firmware Updates: Periodically check the Coolmay official website for firmware updates to enhance performance and security.
- Connection Checks: Regularly inspect all wiring and connections for looseness or damage.
7. Troubleshooting
This section addresses common issues you might encounter with the TK8050H HMI.
| Problem | Possible Cause | Solution |
|---|---|---|
| HMI does not power on | No power supply or incorrect wiring. | Check power connections (DC24V, 0V, FG) and ensure power supply is active. |
| Touch screen unresponsive | Screen calibration issue or hardware fault. | Try restarting the HMI. If issue persists, recalibrate the touch screen (refer to system settings) or contact support. |
| Communication error with PLC | Incorrect communication settings or wiring. | Verify communication cable connections (RS232/RS485). Check HMI and PLC communication parameters (baud rate, data bits, parity, stop bits). |
| Display issues (flickering, distorted image) | Environmental interference or internal hardware issue. | Ensure proper grounding. Check for strong electromagnetic interference. If the problem continues, contact technical support. |
8. User Tips
- For optimal performance, ensure the HMI is installed in a well-ventilated area, away from direct heat sources or excessive vibration.
- Always back up your HMI project files regularly to an external storage device (e.g., SD card or USB drive) to prevent data loss.
- When updating firmware or transferring large project files, use a reliable power source to avoid interruptions.
9. Warranty and Support
9.1. Manufacturer Warranty
The Coolmay TK8050H HMI comes with an 18-month manufacturer warranty. This warranty covers hardware defects and system malfunctions under normal use conditions. Please retain your proof of purchase for warranty claims.
9.2. Technical Support
Coolmay provides lifetime technical support for its products. For assistance with configuration, firmware, integration, or any other technical queries, please contact our support team. We aim to respond to all inquiries within 24 hours.
Contact Information:
- WhatsApp: +86 199-2529-1353
- WeChat: +86 199-2529-1353
9.3. Certifications
Coolmay products, including the TK8050H, are fully compliant with CE and RoHS regulations, and are manufactured under ISO 9001-certified quality management systems.





