MOTOR DRIVING CONTROL AND DEVICE THEREOF

摘要

PROBLEM TO BE SOLVED: To relieve the burden of a motor, which is used for a regulating device or regulating a physical quantity such as the temperature of a heating element, onto a bearing caused by the repetitive operation of frequent driving or stopping of the motor. SOLUTION: The temperature of a heating element 1 is detected by a temperature detection sensor 2. A comparison computing unit 3 calculates a temperature changing ratio Kn and so on to grasp the changing conditions of the temperature of the heating element 1, temperature changing ratio and so on and select rotational speed changing characteristics suitable to the then changing conditions. An indicating signal for changing the rotational speed of the motor 6 from the selected characteristics is outputted to a motor control driver 5 to control the driving of the motor 6. It is thus possible to prevent frequent driving/ stopping of the motor from being repeated and thus to relieve the burden of the motor onto the bearing.