| 摘要 |
The invention concerns a control device powered by an alternating voltage source, comprising a first terminal (UP), a second terminal (DN) and a third terminal (N0) connected to a neutral conductor (AC-N) and powering a motor (MOT). The device is characterized in that it comprises current sensors (CS1, CS2) connected to inputs of a circuit (MCU) monitoring controlled switches (rl1, rl2) capable of closing various circuits powering the motor, and in that the current sensors (CS1, CS2) have a common terminal (GND) and are respectively connected to the terminals (UP, DN) through their other terminal and in that a component (RP) arranged between the neutral conductor (AC-N) and the common terminal (GND) of the current sensors provides a flowing current higher than the detection threshold of the sensors when one of the two terminals (UP, DN) is connected to a phase conductor (AC-H). |
