1. Introduction
This instruction manual provides essential information for the safe and efficient installation, operation, and maintenance of the Elero varieco M20 tubular motor. This motor is specifically designed for use with roller shutters and textile sun protection systems. Please read this manual thoroughly before beginning any installation or operation procedures to ensure proper function and to prevent damage or injury.
2. Safety Instructions
- Installation and electrical connections must only be performed by qualified personnel in accordance with local regulations and standards.
- Disconnect power supply before performing any work on the motor or connected components.
- Ensure that the motor is correctly sized for the application (roller shutter or sun protection system) to avoid overloading. Refer to the load capacity table.
- Keep hands, clothing, and other objects clear of moving parts during operation.
- Do not allow children to play with controls or near the operating system.
- Regularly inspect the system for signs of wear, damage, or loose connections.
3. Product Overview and Components
The Elero varieco M20 is a robust tubular motor designed for reliable performance in various sun protection and roller shutter applications. It features a silent soft brake and mechanically adjustable end limits for precise control.

Figure 1: Elero varieco M20 Tubular Motor. This image shows the main body of the tubular motor, typically installed inside a roller shutter or sun protection shaft. It has a cylindrical shape with mounting and connection points at each end.
4. Specifications
Key technical specifications for the Elero varieco M20 tubular motor (Model Number: 34 931.0101) are provided below. For a comprehensive overview of all varieco models, please refer to the detailed specifications table image.
| Specification | Value (M20) |
|---|---|
| Rated Voltage | 1~ 230 V |
| Rated Frequency | 50 Hz |
| Rated Torque | 20 Nm |
| Rated Speed | 14 RPM |
| Rated Current | 0.9 A |
| Rated Power Consumption | 200 W |
| Shaft Diameter | 50 mm |
| Protection Class | IP44 |
| Limit Switch Range | 35 Revolutions |
| Operating Duration (min S2) | 4 min |
| Length A | 552 mm |
| Length B | 534 mm |
| Weight | 2.2 kg |
| Operating Ambient Temperature | -20 to +60 °C |
| Conformity | CE, VDE |

Figure 2: Detailed specifications table for Elero varieco tubular motors, including the M20 model. This table provides a comprehensive overview of technical data for various motor types within the varieco series.
5. Setup and Installation
The Elero varieco M20 motor is designed for integration into existing or new roller shutter and sun protection systems. A standard 8-sided adapter set is included with the drive.
5.1 Dimensional Drawing
Accurate measurements are crucial for proper installation. Refer to the dimensional drawing below for precise motor dimensions.

Figure 3: Dimensional drawing of the Elero varieco tubular motor. This diagram illustrates the key measurements (Length A, Length B, diameter, and end cap dimensions) necessary for installation, along with the position of the pluggable connection cable.
5.2 General Installation Steps
- Ensure the power supply is disconnected.
- Mount the motor into the roller shutter or sun protection shaft using the appropriate adapter set.
- Secure the motor firmly within the shaft.
- Connect the pluggable connection cable to the motor and route it safely to the control unit.
- Perform initial limit switch settings (refer to Section 6.2).
- Test the motor's operation before final enclosure.
6. Operating Instructions
The Elero varieco M20 motor provides reliable operation for your roller shutters or sun protection. It features a silent soft brake for smooth stops.
6.1 Basic Operation
Once installed and configured, the motor can be operated via a connected control unit (e.g., wall switch, remote control). Typically, there are 'Up' and 'Down' commands to move the roller shutter or sun protection to the desired position. The motor will automatically stop at the set end limits.
6.2 Setting End Limits
The end limits for the 'Up' and 'Down' positions are mechanically adjustable. This allows for precise calibration of the stopping points for your specific application.

Figure 4: Table indicating that the 'Up' and 'Down' end limits are mechanically adjustable. This feature allows for flexible configuration of the motor's travel range.
Refer to the specific instructions provided with your control unit or the motor's detailed installation guide for the exact procedure on how to mechanically adjust these end limits.
7. Maintenance
The Elero varieco M20 tubular motor is designed for low maintenance. However, regular checks can help ensure its longevity and optimal performance.
- Cleaning: Keep the motor and surrounding area free from dust and debris. Do not use abrasive cleaners or solvents.
- Inspection: Periodically check the mounting, connections, and the condition of the power cable for any signs of wear or damage.
- Lubrication: The motor is factory-lubricated and does not require additional lubrication.
- Professional Service: For any internal issues or complex repairs, contact a qualified service technician.
8. Troubleshooting
If you encounter issues with your Elero varieco M20 motor, consider the following common problems and solutions:
- Motor does not respond: Check the power supply and ensure all electrical connections are secure. Verify that the control unit is functioning correctly.
- Motor stops prematurely: The end limits may be incorrectly set. Re-adjust the mechanical end limits as per the installation guide.
- Motor makes unusual noises: Inspect the roller shutter or sun protection system for obstructions or damage. Ensure the motor is securely mounted. If the noise persists, contact a service technician.
- Motor overheats: The motor may have been operated continuously for too long. Allow it to cool down. Refer to the 'Operating Duration' specification.
If these steps do not resolve the issue, contact customer support or a qualified technician.
9. Load Capacity
It is critical to ensure that the weight of your roller shutter or sun protection system does not exceed the maximum load capacity of the Elero varieco M20 motor. The table below provides guidance on the maximum curtain weight for various roller shutter heights, considering a 15% friction factor.

Figure 5: Pulling force table for single roller shutters, showing maximum curtain weight (in kg) at different roller shutter heights (1.0m, 1.5m, 2.0m, 2.5m, 3.0m) for various varieco motor types. For the M20 motor, with a 65mm shaft diameter and 8mm rod thickness, the maximum weight ranges from 47kg at 1.0m height to 40kg at 3.0m height. For multi-part systems, an additional 5% friction must be considered per part.
10. Warranty and Support
Warranty information for the Elero varieco M20 tubular motor is typically provided at the point of purchase or with the product packaging. Please retain your proof of purchase for warranty claims.
For technical support, service, or spare parts inquiries, please contact your authorized Elero dealer or the manufacturer's customer service. Contact details can usually be found on the Elero official website or in the product documentation.







