Patent ID: 7129668

Claim:
An actuator control device for controlling the positions of a plurality of output shafts, comprising: a plurality of actuators for respectively driving the plurality of output shafts by a motor; a plurality of control circuits, each control circuit including a count value representing a present position of a respective output shaft, the control circuits respectively driving the output shafts to respective target stop positions based on the present positions; and an electrical control unit which carries out multiplex communications with the control circuits through a multiplex communication line, wherein the electrical control unit comprises a receiving unit for receiving a present pulse state from each of the plurality of control circuits through the multiplex communication line before the plurality of control circuits drive the respective actuators, a judging unit for judging whether each of the respective present pulse states thus received is abnormal or not by comparing each present pulse state to a respective count value, and a transmitting unit for correcting at least one present position when judged by the judging unit that the at least one present position is abnormal based on the comparison of the present pulse state to the respective count value, and transmitting the corrected present position to the control circuit corresponding to the abnormal present position through the multiplex communication line.