1. Product Overview
The Dooya DM45RM 50/12 is a robust tubular motor designed for automating electric rolling shutters, awnings, and sunshade canopies. It features both manual control capabilities and RF433 remote operation, providing versatile control options. This model is specifically the 'long axis version' with a 4cm axis length, ensuring stable and secure installation for various tube types.


2. Safety Information
- Installation should only be performed by qualified personnel in accordance with local electrical codes and regulations.
- Ensure the power supply is disconnected before performing any installation, maintenance, or troubleshooting.
- Do not operate the motor if any part is damaged or if the power cable is frayed.
- Keep children and pets away from moving parts during operation.
- The motor is designed for specific tube sizes; ensure compatibility before installation.
3. Package Contents
Verify that all components are present and undamaged upon unpacking:
- Dooya DM45RM 50/12 Tubular Motor (Long Axis Version)
- DC2760 2CH Remote Controller
- Mounting Bracket
- Crown and Drive Adapter (specific to your chosen tube size)
- Limit Adjustment Tool
- Mounting Screws and Hardware

4. Installation
4.1 Motor Type Verification
This manual is for the DM45RM 50/12 Long Axis Version. Ensure your motor matches this type, characterized by a 4cm axis length. Incorrect motor type or axis length can lead to unstable installation and malfunction.

4.2 Tube Compatibility and Adapters
The DM45RM 50/12 motor is compatible with various tube sizes. Select the appropriate crown and drive adapter for your specific tube:
- For 55mm Groove Tube:

- For 60mm Octagonal Tube:

- For 60mm Groove Tube:

- For 63mm Groove Tube:

- For 70mm Groove Tube:

- For 80mm Round Tube:

- For 85mm Groove Tube:

- For 90mm Groove Tube:

4.3 Electrical Connection
The motor operates on 220V/230V, 50/60Hz. Connect the motor to a suitable power supply according to the wiring diagram provided with your specific installation kit. Ensure all connections are secure and insulated.
5. Operating Instructions
5.1 Remote Control Overview (DC2760 2CH Remote)
The DC2760 2CH Remote allows wireless control of your motor. It typically features 'open', 'pause', and 'close' buttons for two independent channels.


5.2 Remote Pairing Procedure
Follow these steps to pair your DC2760 remote with the DM45RM 50/12 motor:
- Power On: Turn on the main power switch to the motor. The motor will emit a long beep sound.
- Initiate Pairing Mode: Press the P2 button on the back of the remote control once. The motor will rotate back and forth once. Immediately press the P2 button again. The motor will rotate back and forth once more.
- Confirm Pairing: Press the 'Open' button on the remote control once. The motor will respond, indicating successful pairing.
6. Limit Setting
The motor's travel limits (up and down positions) must be set to prevent over-winding or over-extension of your shutter/awning. Use the provided limit adjustment tool for this process.
6.1 Adjusting Limits
On the motor head, you will find two adjustment screws, typically marked with up and down arrows. These correspond to the upper and lower travel limits.

- Set Upper Limit: Use the remote to move the shutter/awning to your desired upper position. Insert the adjustment tool into the 'Up' limit screw and turn it clockwise to increase the travel or counter-clockwise to decrease it. Test the limit after each adjustment.
- Set Lower Limit: Use the remote to move the shutter/awning to your desired lower position. Insert the adjustment tool into the 'Down' limit screw and turn it clockwise to increase the travel or counter-clockwise to decrease it. Test the limit after each adjustment.


7. Manual Control
The DM45RM 50/12 motor includes a manual override feature, allowing you to operate the shutter or awning even during a power outage. This is typically done using a crank handle that engages with the motor's manual control mechanism.

8. Specifications
| Attribute | Value |
|---|---|
| Model Number | DM45RM 50/12 long Axis |
| Product Name | Dooya Electric Tubular Motor |
| Voltage | 110-240V |
| Power Supply | 220V/230V |
| Frequency | 50/60Hz |
| Wattage | 8W |
| Input Wattage | 205 W |
| Current | 0.89A |
| Torque | 50 Nm |
| Rolling Speed | 12rpm |
| Length Axis Version | about 4cm |
| Control Method | Manual + Dooya RF433 Remote |
| Include Remote Controller | YES |
| Used For | Electric Rolling Shutter Door/Awning |
| Certification | CE |
| Origin | Mainland China |
| Battery Included | No |
| High-concerned chemical | None |

9. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Motor does not respond to remote. | No power, remote not paired, remote battery low. | Check power supply. Re-pair remote (Section 5.2). Replace remote batteries. |
| Motor runs but shutter/awning doesn't move or moves incorrectly. | Incorrectly installed crown/drive adapter, mechanical obstruction. | Verify correct adapter for tube size. Check for obstructions in the track or tube. |
| Shutter/awning stops at incorrect positions. | Limit settings are incorrect. | Adjust the upper and lower limit screws (Section 6). |
| Motor makes unusual noises. | Mechanical issue, motor overload. | Inspect for obstructions. Ensure the motor is not overloaded (check shutter/awning weight against motor torque). Contact support if noise persists. |
10. Maintenance
- Regularly inspect the motor and mounting hardware for any signs of wear, damage, or loose connections.
- Keep the motor and surrounding area clean and free from dust and debris.
- Ensure the shutter or awning tracks are clean and lubricated to allow smooth operation and prevent strain on the motor.
- Check remote control batteries periodically and replace them as needed.
11. User Tips
- For optimal performance, ensure the tube size matches the selected crown and drive adapter perfectly.
- When setting limits, make small adjustments and test the movement after each turn to avoid over-adjustment.
- Keep the remote control in a safe, accessible location and away from direct sunlight or extreme temperatures.
12. Warranty and Support
For warranty information, technical support, or service inquiries, please contact the seller or manufacturer directly. Keep your purchase records handy for faster assistance.