A processing device is provided and electrically connected to a drive controller for driving a control object. The drive controller has a predetermined control structure that includes a feedback system and a control model part, and that enables model follow-up control according to the control models, and has the predetermined control structures corresponding to the control objects, respectively. The processing device determines a common control gain to set a predetermined control gain in the control model part of each predetermined control structure corresponding to the control objects to the common control gain for all the control model parts when synchronous control of the control objects is performed, and instructs the drive controller to set the common control gain for the control model part corresponding to each predetermined control structure.

A processing device is provided and electrically connected to a drive controller for driving a control object. The drive controller has a predetermined control structure that includes a feedback system and a control model part, and that enables model follow-up control according to the control models, and has the predetermined control structures corresponding to the control objects, respectively. The processing device determines a common control gain to set a predetermined control gain in the control model part of each predetermined control structure corresponding to the control objects to the common control gain for all the control model parts when synchronous control of the control objects is performed, and instructs the drive controller to set the common control gain for the control model part corresponding to each predetermined control structure.