ABNORMALITY DIAGNOSIS DEVICE AND ABNORMALITY DIAGNOSIS SYSTEM FOR SERVO CONTROL DEVICE

An abnormality diagnosis device includes a factor-data storage unit that stores therein factor data including a candidate of an alarm-generating factor corresponding to an alarm number; a stored-data storage unit that stores therein, as stored data, statistical data acquired from a statistical data server including the alarm number corresponding to a system configuration number of a servo control device classified based on a system configuration of the servo control device, and a candidate of the alarm-generating factor corresponding to the alarm number, and a generation probability of the candidate; a display unit; and an abnormality-diagnosis processing unit that acquires the alarm number from the servo control device when an alarm is generated, and based on the alarm number, the factor data, and the stored data, adds the generation probability to each candidate and displays, on the display unit, the candidate with the generation probability added.