A servo driver is configured to drive a first motor and be communicatively connected to a different servo driver. The servo driver and a first sensor that is configured to detect a parameter relating to displacement of a first drive target driven via an output axis of a first motor are in an arrangement such that a detection signal from the first sensor is received by the servo driver. In a case in which the servo driver receives the detection signal from the first sensor when a first predetermined operation of driving only the output axis of the first motor to displace the first drive target is performed in a state in which sensor recognition processing is not complete, the servo driver recognizes the first sensor as a first corresponding sensor associated with the servo driver.