| 摘要 |
PROBLEM TO BE SOLVED: To prevent generation of failure such as wire breakage by reducing the number of switches and control circuits, and circuits for connecting a load device, and attain wiring saving. SOLUTION: A voltage corresponding to the control instructions of motors 22a-22d is supplied by voltage multiplexing to the control circuits 21a-21d of respective motors 20a-20d from a booster circuit 13 controlled by a booster control circuit 12 through one voltage line 31. The respective control circuits judge whether supplied voltage is the operating voltage preset at the motor to be controlled, and in the case it is suitable operating voltage, the operation of the motor is controlled from the operating voltage. |
