A drive device in which a controller includes a detection determiner, a high threshold that is initially set and a low threshold are switchably set in the detection determiner as thresholds for determining whether or not to capture detection signals, the controller performs: when the detection determiner makes a capture determination before drive processing, low-switching processing to switch the threshold from the high threshold to the low threshold before the drive processing is started based on the determination results； and perform drive cancellation processing to cancel driving of a driver when the detection determiner makes a capture determination after the low-switching processing.
