Abstract: A method and a system for controlling an asynchronous electric motor for detecting cabling errors between the electric motor and a motor starter. The electric motor including three windings distributed over three branches in a delta configuration and controlled by the motor starter, which includes power semiconductors directly connected in series within the three branches of the delta configuration of the three windings. In one embodiment, the method includes applying a voltage in a first branch of the delta, priming the semiconductor of the first branch after a priming delay, measuring an electrical current generated within the first branch during the priming, and determining the configuration of the cabling of the first branch according to the measured electrical current.

Abstract: The present invention relates to a method and a system for controlling an asynchronous electric motor for detecting cabling errors between the electric motor and its starter, used in the windings of the motor. The electric motor (M) comprises three windings (U, V, W) distributed over three branches in delta configuration and is controlled by a starter (D) comprising power semiconductors directly connected in series within the three branches of the delta configuration of the windings (U, V, W). The method comprises the following steps: application of a voltage in a first branch of the delta, after a priming delay, priming of the semiconductor of the first branch, measurement of the electrical current generated within the first branch during the priming operation, determination of the configuration of the cabling of the first branch as a function of the measured electrical current.