1. Introduction
This manual provides detailed instructions for the installation, operation, maintenance, and troubleshooting of your CNMAWAY MY1016Z 250W 24V Permanent Magnet Brushed DC Motor. Please read this manual thoroughly before using the motor to ensure safe and efficient operation.
2. Specifications
The MY1016Z motor is a permanent magnet brushed DC motor available in two main speed variants: 75 revolutions per minute (R/min) and 120 R/min. It is designed for various applications requiring a 24V DC power supply.
2.1 General Parameters
| Parameter | Value |
|---|---|
| Rated voltage | 24VDC |
| Rated power | 250W |
| Idle speed | 75r/min~120r/min |
| Rated speed | 2400~3700RPM |
| Rated current | 13.4A |
| Motor efficiency | 70%~76% |
| Work schedule | S2:60 |
| Rated torque | 250W: 0.64N. m~0.98N. m |
| Insulation level | E |
| Protection level | IP33 |

Figure 1: Motor Specification Parameters
2.2 Dimensions
The motor is available with either a long shaft or a short shaft. Both shaft types feature a 4mm keyway width.
- Long Shaft: Designed for use with pulleys, featuring key slots and small nuts.
- Short Shaft: Typically equipped with gears (default 9-tooth), suitable for bicycle chains, 420 chains, 428 chains, and T8F chains.

Figure 2: Long Shaft Dimensions (45mm length, 17mm diameter)

Figure 3: Motor Mounting Dimensions (20mm and 73.5mm between mounting points)

Figure 4: Long Shaft Keyway Width (4mm)

Figure 5: Short Shaft Keyway Width (4mm)

Figure 6: Short Shaft Compatible Sprockets and Pulleys
2.3 Technical Diagrams
Detailed technical drawings for both 75 R/min and 120 R/min versions of the MY1016Z-250W24V motor are provided below for precise integration and planning.

Figure 7: MY1016Z-250W24V 75R/min Motor Diagram

Figure 8: MY1016Z-250W24V 120R/min Motor Diagram
3. Setup and Installation
Before installation, ensure all components are present and undamaged. The motor is a permanent magnet DC type and has brushes.
3.1 Mounting the Motor
The motor can be mounted using the integrated mounting points. Ensure the mounting surface is stable and can support the motor's weight and operational forces. A mounting bracket may be used for secure attachment.

Figure 9: MY1016Z Motor (Long Shaft)

Figure 10: MY1016Z Motor (Short Shaft)
3.2 Electrical Connection
Connect the motor directly to a 24V DC power source. The motor will rotate upon connection. For variable speed control or directional changes, a compatible controller is required.

Figure 11: Example Speed Controllers (12V/24V)
3.3 Shaft Attachment
Depending on your application, attach the appropriate pulley or gear to the motor shaft. Ensure the keyway is properly aligned and secured.
Video 1: Demonstrates the motor's components, including different shaft types and mounting options.
4. Operating Instructions
The motor is designed for straightforward operation once properly installed and connected to a power source.
4.1 Directional Control
The motor can rotate in both forward and reverse directions. To achieve reverse rotation, a reverse lever or a reverse switch must be used. Without such a control, the motor will operate in a single direction when power is applied.
4.2 Speed Control
While the motor has a rated speed, its actual operating speed can be adjusted using a compatible speed controller. The need for a controller depends on your specific application requirements.
5. Maintenance
Regular maintenance helps ensure the longevity and optimal performance of your DC motor.
- Cleaning: Keep the motor free from dust, dirt, and debris. Use a soft, dry cloth for cleaning. Avoid using liquids directly on the motor.
- Inspection: Periodically check all electrical connections for tightness and signs of wear. Inspect the shaft and any attached components (pulleys/gears) for damage or misalignment.
- Brush Inspection: As this is a brushed DC motor, the brushes will wear over time. Consult a qualified technician for brush inspection and replacement if performance degrades.
- Lubrication: The motor's internal bearings are typically sealed and do not require user lubrication. Avoid applying lubricants unless specifically instructed by the manufacturer.
6. Troubleshooting
If you encounter issues with your motor, refer to the following common problems and solutions:
6.1 Motor Not Rotating
- Check Power Supply: Ensure the 24V DC power supply is correctly connected and providing adequate voltage and current.
- Check Wiring: Verify all electrical connections are secure and free from damage.
- Controller Issue: If using a controller, ensure it is functioning correctly and properly connected to both the power supply and the motor.
6.2 Incorrect Rotation Direction
- Reverse Control: If you need to change the direction of rotation, you must use a reverse lever or a reverse switch. The motor's inherent wiring will dictate its initial direction.
6.3 Unusual Noise or Vibration
- Mounting: Check if the motor is securely mounted. Loose mounting can cause vibration.
- Shaft Alignment: Ensure any attached pulleys or gears are properly aligned and balanced.
- Internal Issue: If the noise persists, discontinue use and consult a qualified technician.
7. User Tips
- Shaft Selection: Carefully consider whether a long shaft (for pulleys) or a short shaft (for gears/sprockets) is appropriate for your application. Short shafts are versatile for various chain types (bicycle, 420, 428, T8F).
- Controller Usage: While the motor can run directly from a battery, using a 12V/24V speed controller provides greater flexibility for adjusting motor speed to suit your project's needs.
- Reversing Direction: Remember that a separate reverse switch or lever is necessary to change the motor's direction of rotation.
8. Warranty and Support
For any issues or inquiries regarding your MY1016Z motor, please contact the seller or manufacturer directly. Information regarding returns and refunds for damaged or lost items, or delayed delivery, is typically handled through the purchase platform's policies.