1. Product Overview
The Li Hui Control Card is a high-performance industrial control core component, specially designed for the control of laser equipment, automation equipment, and electromechanical systems. It integrates signal processing, motion control, and communication functions, with stable performance, high control precision, and easy operation. This control card enables precise control of equipment action, parameter adjustment, and signal feedback. It is widely used in laser marking, engraving, and cutting equipment, as well as various automated production lines, providing reliable control support for equipment operation and improving production efficiency and control accuracy.
For detailed information, please refer to the official user manual PDF.
Video: Visual overview of the FONLAND LIHUIYU M3 Nano Controller and its key features.
Image: Main components of the M3 Nano Controller system, including the main board, control panel, USB dongle, and connecting cable.
2. Main Features
- High Control Precision: Adopts advanced control algorithms with precise motion control and parameter adjustment capabilities, ensuring stable and accurate equipment operation.
- Strong Compatibility: Compatible with various laser power supplies, motors, and sensors, supporting mainstream communication protocols, easy to integrate with different types of equipment.
- Easy Operation: Equipped with a simple operation interface and clear parameter settings, convenient for on-site debugging and daily operation.
- Stable Performance: High-quality electronic components and strict production process, strong anti-interference ability, suitable for long-term continuous operation in industrial environments.
- Multiple Protection Functions: Equipped with over-current, over-voltage, and short-circuit protection, effectively protecting the control card and connected equipment from damage.
- Expandable Function: Supports function expansion according to actual needs, adapting to different control scenarios and equipment requirements.
- Versatile Engraving/Cutting: Supports carving, cutting, image processing, engraving, and slow marking.
- Unlimited Data: Supports receiving an unlimited number of engraving data.
- USB Features: Supports USB dropped breakpoints continuation and USB dropped detection.
- Accidental Breakpoints: Supports recovery from accidental breakpoints.
- Unlimited Format: Supports unlimited engraving format.
Image: Key features of the M3 mainboard, including support for carving, cutting, image engraving, slow marking, unlimited engraving data, USB dropped breakpoints, unlimited engraving format, USB dropped detection, and accidental breakpoints.
3. Software Support
The M3 Nano / M3 Plus controllers are designed to work with various laser software:
- CorelDRAW
- CorelLASER
- CorelDRW
- WinsealXP
Note: For 2025 versions of M3 NANO and M3 PLUS, a physical dongle is no longer required as the dongle function is built into the control card, and these versions support all listed software.
4. Technical Specifications
| Parameter | Specification |
|---|---|
| Model | Li Hui Control Card (M3 Nano / M3 Plus) |
| Type | Industrial Control Card |
| Working Voltage | 12V DC ±10% |
| Working Current | ≤1A |
| Operating Temperature | -10°C ~ +60°C |
| Protection Grade | IP20 |
| Communication Protocol | RS232, USB (optional) |
| Control Interface | Digital Input/Output, Analog Input/Output |
| Motherboard Outline Dimensions | 97.0mm x 64mm |
| Mounting Hole Size | 4.32mm x 4 |
Image: Detailed dimensions of the M3 Nano Controller Motherboard, showing overall length of 109mm, width of 70mm, and mounting hole positions.
5. Installation Guidelines
- Power Disconnection: Before installation, always disconnect the power supply to avoid electric shock or damage to the control card and related equipment.
- Environment: Install the control card in a well-ventilated, dry, and clean environment. Ensure it is away from high temperature, humidity, strong electromagnetic interference, and flammable materials.
- Secure Mounting: Fix the control card firmly with screws to prevent vibration during operation, which may affect the stability and performance of the control card.
6. Wiring Instructions
Ensure all wiring is neat, firm, and correctly connected to avoid equipment failure or control card damage.
- Power Wiring: Connect the 12V DC power supply to the power terminal of the control card (V+: Positive, V-: Negative). Double-check the connection to avoid short circuits or damage to the control card.
- Load Wiring: Connect the laser power supply, motor, sensor, and other loads to the corresponding input/output terminals of the control card. Refer to the specific wiring diagram for your laser machine to ensure correct connection and reliable contact.
- Communication Wiring: If using RS232 or USB communication, connect the communication cable to the corresponding communication terminal of the control card. Connect the other end to your computer or PLC for parameter setting and control signal transmission.
Image: Wiring diagram illustrating the connection of the M3 Nano Controller to an external power supply unit, showing terminals GPLGZ and G L.
7. Operating Instructions
- Verify Connections: After completing installation and wiring, perform a final check to confirm that all connections are correct and firm.
- Power On: Turn on the power supply. The control card will enter standby mode. Observe the indicator light to confirm that the control card is in normal working state.
- Parameter Setup: Connect the control card to your computer or PLC using the communication cable. Set necessary parameters such as motion speed and control mode according to your equipment requirements.
- Test Operation: After parameter settings are complete, test the equipment operation to confirm that the control card accurately controls the equipment action and signal feedback.
- Monitor Operation: During operation, regularly check the working status of the control card and related equipment. Address any abnormalities promptly.
8. Maintenance & Troubleshooting
8.1 Regular Maintenance
- Cleaning: Clean the surface of the control card regularly with a dry cloth to remove dust and debris, ensuring good heat dissipation and stable operation.
- Terminal Check: Regularly check wiring terminals for looseness or corrosion. Tighten or replace them if any issues are found.
- Cable Inspection: Regularly check the power cord and communication cable for damage. Replace them immediately if there is any breakage or aging.
8.2 Common Issues & Solutions
| Problem | Possible Cause | Solution |
|---|---|---|
| Control Card No Power | Power cord disconnected or power supply abnormal | Check power cord connection and power supply voltage |
| No Communication with Computer | Communication cable damage or protocol mismatch | Replace communication cable and check communication protocol settings |
| Unstable Equipment Control | Loose wiring or parameter setting error | Tighten wiring and recheck parameter settings |
| Indicator Light Abnormal | Control card internal fault | Inspect the control card or contact support |
9. Safety Precautions
- Professional Installation: Only professional personnel should perform installation, wiring, and maintenance to avoid electric shock or equipment damage.
- Voltage/Current Limits: Do not exceed the rated voltage and current range to prevent damage to the control card and connected equipment.
- No Disassembly: Do not disassemble the control card without permission. Unauthorized disassembly will affect the warranty and may cause safety hazards.
- Keep Away from Children: Keep the control card away from children and unauthorized personnel to prevent accidental injury.
- Emergency Procedures: In case of short circuit, fire, or other emergencies, immediately cut off the power supply and take appropriate fire-fighting measures.
10. User Tips
- Quiet Operation: Users have noted that stepper motors connected to this controller operate with minimal audible noise.
- Software Compatibility: Always verify software compatibility for your specific laser application. While CorelDRAW, CorelLASER, CorelDRW, and WinsealXP are supported, confirm if other software like LightBurn is compatible if you plan to use it.
- Careful Wiring: Pay close attention to all wiring diagrams and instructions during setup. Incorrect wiring is a common cause of initial operational issues.
11. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your vendor or the official FONLAND support channels. Ensure you have your product model and purchase details available when seeking assistance.