Volet Roulant [upd] | Schema

In this diagram, the capacitor is wired between the up wire and the down wire inside the motor housing. When the switch sends phase to the up wire, the current flows through the capacitor to the down wire (which acts as the neutral for that winding), creating rotation. The limit switches are placed in series on the up and down phase lines, interrupting the circuit when the shutter reaches the end.

Voici une description générale des composants et du fonctionnement d'un volet roulant : schema volet roulant

Misreading a roller shutter diagram leads to common failures: In this diagram, the capacitor is wired between