Translations:KAVAN Smart PRO SBEC ESCs - Instruction manual/117/en

From KAVAN RC Wiki

Propeller positioning

The positioning feature allows moving the motor/propeller to the exact position required for a safe landing, or which is just comfortable for further flying. With just a few external components (a Hall sensor and a small magnet) you can enable this feature and prevent the risk of damaging your propeller during landing. The magnet needs to be properly fixed to the rotating part (either the motor or the propeller), and the Hall sensor has to be located in the fuselage so that the magnet matches the Hall sensor at the target propeller position. After enabling the positioning feature in the menu (Prop Position = Hall Sensor), set also the Positioning PWM, so that the motor spins slowly but smoothly. You may also change the duration of the actively held motor position (Position Hold Time) which is applied after the correct position is found. The position-hold feature is useful in the case of a retractable engine since it doesn’t allow the propeller to be moved while retracting.