Motor Control Circuit, Motor Drive Control Apparatus And Control Method Of Motor Drive Control Apparatus

A control method of a motor drive control apparatus including

• a motor control circuit configured to output a drive control signal for performing drive control of a motor based on target information relating to a target rotational speed and rotational speed detection information of a rotational speed of the motor, and
• a motor driving unit configured to output a drive signal to the motor to drive the motor based on the drive control signal output from the motor control circuit, the control method comprising:
• a speed control step of outputting speed command information relating to the rotational speed of the motor based on the target information and the rotational speed detection information;
• a drive signal generation step of generating the drive control signal for driving the motor based on the speed command information;
• and
• a drive stop control step of outputting a first drive stop control signal for performing braking control of the motor or a second drive stop control signal for performing free-run stop control of the motor based on the rotational speed detection information and the speed command information when input of the target information is stopped,
• wherein, in the drive stop control step,
• the first drive stop control signal is output based on a detection result that the speed command information is equal to or less than a predetermined value, and the rotational speed of the motor is equal to or less than a predetermined first threshold,
• the second drive stop control signal is output based on a detection result that the speed command information is equal to or less than the predetermined value, and the motor is put into a drive stop state, and
• in the drive signal generation step, when the first drive stop control signal or the second drive stop control signal is output in the drive stop control step, the drive control signal is generated based on the first drive stop control signal or the second drive stop control signal.