A method for configuring a motorized drive device for a closure or sun-protection home-automation installation, the closure or sun-protection home-automation installation comprising a concealing device , the concealing device comprising at least: - a winding tube , - a screen , a first end of the screen being fastened to the winding tube , and - a load bar , a second end of the screen being fastened to the load bar , the motorized drive device comprising at least: - an electromechanical actuator making it possible to wind and unwind the screen on the winding tube , between a wound position and an unwound position, the electromechanical actuator comprising at least: - an electric motor , - an output shaft connected to the winding tube of the concealing device , and - an electronic control unit , the electronic control unit comprising at least: - a device for measuring a parameter (T) of an electric current traversing the electric motor , and - a memory storing a value of the measured parameter (T), said method comprises at least the following steps: - (E10) entering a configuration mode of the motorized drive device , - (E40) first movement of the screen toward the unwound position by activating the motorized drive device , - (E50) automatically determining a low end-of-travel position of the screen , - (E80) moving the screen toward the wound position by activating the motorized drive device , - (E100) second movement of the screen toward the unwound position by activating the motorized drive device , - (E110) stopping the motorized drive device in the determined low end-of-travel position of the screen , during the automatic determination step (E50), and the step (E50) for automatically determining the low end-of-travel position of the screen comprising a sub-step (E500) for measuring the parameter (T) of the electric current traversing the electric motor using the measuring device and a sub-step (E530) for determining a variation (Δ) of the measured parameter (T). - a winding tube , - a screen , a first end of the screen being fastened to the winding tube , and - a load bar , a second end of the screen being fastened to the load bar , - an electromechanical actuator making it possible to wind and unwind the screen on the winding tube , between a wound position and an unwound position, - an electric motor , - an output shaft connected to the winding tube of the concealing device , and - an electronic control unit , - a device for measuring a parameter (T) of an electric current traversing the electric motor , and - a memory storing a value of the measured parameter (T), - (E10) entering a configuration mode of the motorized drive device , - (E40) first movement of the screen toward the unwound position by activating the motorized drive device , - (E50) automatically determining a low end-of-travel position of the screen , - (E80) moving the screen toward the wound position by activating the motorized drive device , - (E100) second movement of the screen toward the unwound position by activating the motorized drive device , - (E110) stopping the motorized drive device in the determined low end-of-travel position of the screen , during the automatic determination step (E50), <EOS>