Fault detection of a the direction of a power transmission by means of, shaping device, and fault detection of the method of a power transmission by means of

摘要

A fault detection of a the direction of a power transmission by means of which comprises an electric motor; a converting mechanism comprises a rotational movement of the electric motor into a linear movement and a drive which converts the object moves in linear fashion; a first detector which detects a rotation of the electric motor; a second detector, which the movement of the drive object at a certain position is detected; memory means for storing a rotation of the electric motor which, for standard time of the first detector is detected, and which leads to a time takes place when the drive object of the second detector is detected, as a reference value; and a comparison device, which is built up, in order to allow a rotation amount of the electric motor, detects from the first detector, if the movement of the drive object of the second detector is detected, with the reference value, which is stored in said storage means, to compare.