1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Somfy LT50 506S2 Sonesse RTS motor. This motor is designed for use in various automated window covering applications, offering quiet and reliable performance with Radio Technology Somfy (RTS) for convenient control.
Please read this manual thoroughly before proceeding with installation or operation to ensure proper use and to maximize the lifespan of your product.
2. Consignes de sécurité
- Sécurité électrique : Installation must be performed by a qualified electrician in accordance with all local and national electrical codes. Ensure power is disconnected before any wiring or maintenance.
- Utilisation appropriée : This motor is intended for specific window covering applications. Do not use it for purposes other than those specified by Somfy.
- Enfants et animaux domestiques : Keep children and pets away from operating window coverings.
- Obstructions: Ensure there are no obstructions in the path of the window covering during operation.
- Entretien: Effectuez uniquement l'entretien décrit dans ce manuel. Confiez toute autre intervention à un personnel qualifié.
3. Contenu du colis
Upon unpacking, please verify that all components are present and undamaged. The package for your Somfy LT50 506S2 Sonesse RTS motor should include:
- Somfy LT50 506S2 Sonesse RTS Motor
- Cordon d'alimentation
Note: Accessories such as the crown, drive, and mounting plate are non inclus with the motor and must be purchased separately to suit your specific installation requirements.

Image 1: Somfy LT50 506S2 Sonesse RTS Motor. This image shows the full motor unit, typically installed within a tube for automated window coverings.
4. Configuration et installation
Installation of the Somfy LT50 506S2 Sonesse RTS motor requires careful attention to detail and adherence to electrical safety standards. It is highly recommended that installation be performed by a professional installer or a qualified electrician.
4.1 Vérifications avant l'installation
- Ensure the power supply matches the motor's requirements (120V).
- Verify that the tube diameter and mounting brackets are compatible with the LT50 motor.
- Confirm you have all necessary accessories (crown, drive, mounting plates) for your specific application.
4.2 Installation du moteur
- Préparer le tube : Cut the tube to the appropriate length for your window covering.
- Attach Crown and Drive: Secure the crown and drive accessories to the motor head. The crown engages with the inside of the tube, and the drive fits into the tube's end.
- Insert Motor into Tube: Carefully slide the motor, with attached crown and drive, into the tube. Ensure it is fully seated.
- Monter l'assemblage : Install the tube assembly into the mounting brackets, ensuring it is level and securely fastened.
- Connexion électrique : Connect the motor's power cord to the 120V electrical supply. This step must be done by a qualified professional.

Image 2: Close-up of one end of the Somfy motor, showing the drive mechanism where the crown and drive accessories attach.

Image 3: Close-up of the other end of the Somfy motor, featuring the Radio Technology Somfy (RTS) logo, indicating wireless control capability.
5. Mode d'emploi
The Somfy LT50 506S2 Sonesse RTS motor operates using Radio Technology Somfy (RTS), allowing wireless control via compatible Somfy remote controls or wall switches (sold separately).
5.1 Pairing a Remote Control
- Mise sous tension : Assurez-vous que le moteur est sous tension.
- Locate Program Button: On your Somfy remote control, locate the program (PROG) button, usually a small recessed button on the back or side.
- Press Program Button on Existing Remote (if applicable): If you are adding a new remote to an already programmed motor, briefly press the PROG button on an existing, already paired remote until the motor jogs (moves slightly up and down).
- Press Program Button on New Remote: Immediately after the motor jogs, briefly press the PROG button on the new remote control you wish to pair. The motor will jog again, confirming successful pairing.
5.2 Setting Limits (Up/Down Positions)
Setting the upper and lower limits is crucial for proper operation and to prevent damage to your window covering.
- Adjust to Upper Limit: Use the UP or DOWN buttons on your remote to move the window covering to your desired upper limit.
- Confirm Upper Limit: Press and hold the MY button and the UP button simultaneously until the motor jogs. This sets the upper limit.
- Adjust to Lower Limit: Use the UP or DOWN buttons to move the window covering to your desired lower limit.
- Confirm Lower Limit: Press and hold the MY button and the DOWN button simultaneously until the motor jogs. This sets the lower limit.
- Finalize Limits: Briefly press the PROG button on the remote until the motor jogs. This saves both limits.
5.3 Fonctionnement de base
- Bouton HAUT : Moves the window covering upwards.
- Bouton BAS : Moves the window covering downwards.
- MY Button: Stops the window covering during movement or recalls a pre-programmed "favorite" intermediate position.
6. Entretien
The Somfy LT50 506S2 Sonesse RTS motor is designed for long-term, maintenance-free operation. However, periodic checks can help ensure optimal performance.
- Nettoyage: Veillez à ce que le moteur et la zone environnante restent exempts de poussière et de débris. Utilisez un chiffon doux et sec pour le nettoyage. N'utilisez pas de produits abrasifs ni de solvants.
- Inspection des câbles : Periodically inspect the power cord for any signs of damage, fraying, or wear. If damage is found, disconnect power immediately and contact a qualified technician for replacement.
- Sécurité de montage : Occasionally check that the motor and window covering assembly remain securely mounted in their brackets.
No internal user-serviceable parts are present. Do not attempt to open or repair the motor yourself, as this will void the warranty and could lead to electrical hazards.
7. Dépannage
If you encounter issues with your Somfy LT50 506S2 Sonesse RTS motor, refer to the following common problems and solutions:
| Problème | Cause possible | Solution |
|---|---|---|
| Le moteur ne répond pas à la télécommande. |
|
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| Motor jogs but does not move fully. |
|
|
| Le moteur fait des bruits inhabituels. |
|
|
If the problem persists after attempting these solutions, please contact Somfy customer support for further assistance.
8. Spécifications
| Fonctionnalité | Spécification |
|---|---|
| Marque | Somfy |
| Modèle | LT50 506S2 Sonesse RTS |
| Couple | 6 Nm |
| Vitesse | 32 tr/min |
| Voltage | 120 volts |
| Horsepower (Watts) | 6 watts |
| Matériel | Métal |
| Poids de l'article | 0.01 onces (Note: This weight seems unusually low and might be a data entry error. Refer to product packaging for accurate weight.) |
| Dimensions du colis | 29.5 x 4 x 3.8 pouces |
| Code UPC | 685248788127 |
9. Informations sur la garantie
The Somfy LT50 506S2 Sonesse RTS motor comes with a Garantie de 5 ans À compter de la date d'achat, cette garantie couvre les défauts de matériaux et de fabrication dans des conditions normales d'utilisation et d'entretien.
La garantie ne couvre pas les dommages résultant de :
- Installation ou câblage incorrect.
- Accident, abus, mauvaise utilisation ou négligence.
- Réparations ou modifications non autorisées.
- Failure to follow operating or maintenance instructions.
For warranty claims, please retain your proof of purchase and contact Somfy customer support.
10. Assistance clientèle
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact Somfy customer support.
- Ressources en ligne : Visit the official Somfy website for FAQs, additional documentation, and support contacts. www.somfy.com
- Coordonnées: Refer to the Somfy webConsultez ce site pour obtenir les coordonnées les plus récentes, y compris les numéros de téléphone et l'adresse électronique du service d'assistance.





