1. Product Overview
The Dooya DM45M 50/12 is a manual tubular motor designed for operating motorized rolling shutter doors and awnings. It supports both manual control and RF433 remote control. This motor is compatible with various tube sizes, including 80mm and 114mm round tubes, as well as several groove tube sizes.

2. Specifications
The following table details the technical specifications for the DM45M 50/12 model:
| Attribute | Value |
|---|---|
| Model Number | DM45M 50/12 |
| Type | Manual Tubular Motor |
| Rated Torque | 50 Nm |
| Speed | 12 r/min |
| Tube Diameter | 45 mm |
| Rated Voltage | 220/230V |
| Frequency | 50/60Hz |
| Rated Power | 205W |
| Rated Current | 0.89A |
| Running Time | 4 min |
| Degree of Protection | IP44 |
| Motor Weight | 3.12kg |
| Certification | CE |
| Manual Control | Support |
| Remote Control | Support |
| Work for 80mm tube | Yes |
| Work for 114mm tube | Yes |

3. Package Contents
The standard package includes:
- 1 x Dooya DM45M 50/12 Tubular Motor
- 1 x Adjust Rod
- 1 x Small Bracket
- 1 x Big Bracket
- 1 x Crown (specific to chosen tube type)
- 1 x Drive Adapter (specific to chosen tube type)
- Mounting Screws and Nuts

Note on Crown and Drive Adapter: The crown and drive adapter are crucial for fitting the motor into your specific rolling tube. There are many variations in tube inner structures. We provide adapters suitable for common tube types. If your tube has a different internal structure, you may need to modify the provided adapters, find compatible ones locally, or use 3D printing. If your existing crown and drive adapter are in good condition, it is often best to reuse them.

4. Installation
4.1 Safety Precautions
- Do not immerse the motor in water.
- Do not use a hammer or apply excessive force directly to the motor body.
- Do not drill into the motor body.
- Ensure proper wiring connections as per the circuit diagrams.

4.2 Crown Installation
- Place the crown onto the motor shaft.
- Align the crown with the motor.
- Secure the crown.

4.3 Drive Adapter Installation
- Insert the drive adapter onto the motor shaft.
- Align the drive adapter.
- Measure the length 'L' and mark the drilling points.
- Drill holes and use rivets or screws to install the drive adapter.

4.4 Bracket Installation
There are two common methods for bracket installation:
Method A: Standard Bracket Installation
- Attach the brackets to the wall.
- Mount the motor with the tube onto the brackets.
- Connect the two-way hand crank device (DS21) if applicable.

Method B: Concealed Bracket Installation
- Install the motor with the tube into the concealed brackets.
- Secure the brackets.
- Ensure the rolling shutter operates smoothly.

4.5 Circuit Installation
Wiring should be done according to the product nameplate (230V/50Hz or 120V/60Hz). Ensure all connections are secure and correct.
Circuit Installation A

Circuit Installation B

Circuit Installation C

4.6 Inner Installation Structure

4.7 Motor Head Details

4.8 Installation Video
5. Operation
5.1 Setting Upper Limit
When the motor does not stop rotating, use the special regulator to adjust the limit. Press the 'up' button once, then use the regulator to adjust the red or white worm. When the desired upper limit is reached, stop rotating the worm and press the 'stop' button.

5.2 Setting Lower Limit
When the motor does not stop rotating, use the special regulator to adjust the limit. Press the 'down' button once, then use the regulator to adjust the red or white worm. When the desired lower limit is reached, stop rotating the worm and press the 'stop' button.

5.3 Control Systems
The motor supports both manual and remote control. Various control systems are compatible:
Matchable Control System (RF433)
These systems typically operate at an emitter frequency of 433.92MHz ± 100KHz and have a working temperature range of -20°C to +55°C. They offer light-touch operation and a transmit distance of up to 35 meters indoors.

Other Control Systems
Additional control options include various single manual switches and central control units.

6. Maintenance
Regular maintenance is not typically required for tubular motors. However, ensure the motor and its components are kept clean and free from obstructions. Periodically check wiring for any signs of wear or damage.
7. Troubleshooting
Refer to the table below for common issues and their solutions:
| Fail-phenomena | Failure causes | Solutions failure recovery |
|---|---|---|
| 1. Press the upward button of the controller; the shutter moves downward | Inside wire connecting of the controller is wrong | Exchange the position of black wire and brown wire |
| 2. Switch on, the drive adapter runs in one-way operation | Inside limit switch of motor doesn't open | Crown running one circle in the opposite direction of the drive adapter, then it works |
| 3. Motor starts slowly or not work after connect power | a. Power voltage is slow b. Wiring error c. Overload d. Improper installation | a. Adjust power to rated data b. Check circuit and correct wiring connecting c. Rated torque associated with the installation of the load d. Re-install the motor |
| 4. Motor stops suddenly after running | Motor stops suddenly after running | Motor will automatically resume work after 20 minutes cooling |
| 5. Abnormal sound during roller blinds in operation | Outer tube is too long, led the rolling shutter connects with both sides of bracket too tightly | If idler is active, propering make the tube shorter to avoid too tight status. |

8. User Tips
- Ensure the correct crown and drive adapter are used for your specific tube type to avoid installation issues.
- Double-check all wiring connections before powering on the motor to prevent operational errors.
- If using remote control, ensure it is properly paired with the motor's receiver.
9. Support
For further assistance or technical support, please contact your retailer or the manufacturer directly. Always refer to the product's official documentation for the most accurate and up-to-date information.