BARRIER MOVEMENT OPERATOR HAVING OBSTRUCTION DETECTION

摘要

A barrier movement operator (10) including a sensing device (110) for generating motor signals representing an operational variable of the motor (106), a position sensor (128, 127) for detecting the rotation of motor (106), a controller (70) for controlling the motor (106) based on the output signal from the sensing device (110) and the position sensor (128, 127), and a power control circuit (114) for controlling energization of the motor (106).