1. Introduction
This manual provides essential information for the safe and effective installation, operation, and maintenance of the Qixing QD-682 Electronic Control Unit. This unit is specifically designed for use with industrial sewing machines, including models from Jack, Baoyu, Zoje, and Bruce, functioning as a computer lockstitch control motherboard.
Important Note: This product is exclusively for industrial sewing machines. It is not compatible with other machine types.
Due to the nature of these components, which may have been in storage for an extended period (over ten years), some units might exhibit minor cosmetic imperfections such as dust or oxidation. These do not affect the normal functionality or performance of the unit. We assure you that all units are tested for normal operation before shipment.
2. Safety Information
- Electrical Safety: Do not connect the power supply to a voltage higher than AC264V. Ensure your machine is correctly grounded to prevent electrical hazards.
- Professional Installation: Refer to this User's Manual for proper installation and operation. If you are unsure about any steps, consult a qualified technician.
- Compatibility: Always verify the compatibility of the control unit with your specific sewing machine model and part number before installation. Incompatible parts can lead to malfunction and damage.
3. Installation and Setup
3.1 Pre-Installation Check
- Verify Compatibility: Before attempting installation, carefully check your sewing machine's model and the required part number. The QD-682 unit is only compatible if the part numbers match exactly. If part numbers differ, the unit cannot be used.
- Inspect Unit: Although tested, visually inspect the QD-682 unit for any visible damage that might have occurred during transit.
3.2 Physical Installation
- Mounting: Securely mount the QD-682 control unit to your industrial sewing machine using the integrated mounting brackets. Ensure it is stable and free from excessive vibration.
- Power Connection: Connect the power supply cable to the unit. Ensure the voltage does not exceed AC264V.
- Grounding: Confirm that your sewing machine system, including the control unit, is properly grounded.
3.3 Wiring Connections
Connect the necessary cables from your sewing machine (motor, sensors, control panel, etc.) to the corresponding ports on the QD-682 unit. Refer to the specific wiring diagram for your sewing machine model for accurate connections. The unit features various multi-pin and serial (DB9) connectors for different functions.
4. Operating Instructions
4.1 Powering On/Off
- To power on the unit, press the red power switch located on the front panel to the 'ON' position.
- To power off, press the switch to the 'OFF' position.
4.2 Basic Functionality
The QD-682 unit serves as the electronic control center for your industrial sewing machine, managing functions related to computer lockstitch operations. Once powered on and correctly connected, the unit will interface with your machine's control panel and motor to execute sewing programs and commands. Specific operational details will depend on your sewing machine's interface and programming capabilities.
5. Maintenance
- Cleaning: Keep the control unit clean and free from dust and debris. Use a soft, dry cloth for cleaning. Avoid using liquid cleaners directly on the unit.
- Environmental Conditions: Ensure the unit is operated in a dry environment, away from excessive moisture or extreme temperatures.
- Connection Integrity: Periodically check all cable connections to ensure they are secure and free from wear or damage.
- Addressing Oxidation: If minor oxidation is present due to storage, it typically does not affect performance. However, ensure it does not interfere with electrical contacts.
6. Troubleshooting
- Unit Not Powering On:
- Check the power cable connection.
- Ensure the power switch is in the 'ON' position.
- Verify the power supply voltage is within the specified range (AC220V, 50/60Hz).
- Machine Malfunction After Installation:
- Re-check all wiring connections according to your machine's diagram.
- Confirm that the QD-682 unit's part number precisely matches your machine's requirements. Incompatible part numbers will prevent proper function.
- Ensure the machine is correctly grounded.
- Uncertainty About Compatibility: If you are unsure whether this unit is compatible with your machine, please contact customer service *before* placing an order or attempting installation. Provide comprehensive photos of your machine, including:
- Overall machine photos
- Motor front photos
- Barcode photos
- Machine model photos
- Electric cabinet front photos
- Back interface photos
7. Specifications
| Feature | Detail |
|---|---|
| Model | QD-682 |
| Type | Sewing Machine Parts (Electronic Control Unit) |
| Material | Rubber (component material) |
| Use | Embroidery (related function) |
| Origin | Mainland China |
| Input Voltage | 2N-220V (AC220V) |
| Frequency | 50/60Hz |
| Rated Input | 700VA |
| Max Output Speed | 5000rpm |
| Max Output Torque | 4.5Nm |
| Package Length | 20 cm |
| Package Width | 20 cm |
| Package Height | 10 cm |
| Package Weight | 1.95 kg |
8. Warranty and Support
All Qixing QD-682 Electronic Control Units are customized products and undergo thorough testing by our technical department before shipment to ensure quality and functionality.
Return Policy: Please be aware that all products, once sold, are non-refundable. We do not accept returns, refunds, or disputes for any reason, including incompatibility if the pre-purchase compatibility check was not performed.
For any questions or concerns regarding the product, especially concerning compatibility with your specific machine, please contact customer service before making your purchase. Providing detailed information and photos of your machine will help us assist you effectively.
9. User Tips
- Double-Check Compatibility: The most crucial step is to confirm that the part number of the QD-682 unit matches your machine's requirements. This prevents installation issues and ensures proper function.
- Patience with Older Stock: As these units may be from older stock, minor cosmetic imperfections like dust or oxidation are normal and do not impact performance.
- Seek Assistance: If you are uncertain about any aspect of installation or compatibility, always reach out to customer service with detailed information about your machine.
