Stepper motor device has memory arranged such that it saves previous defined phase, and forward control device is so arranged that it supplies control signal to stepper motor so that stepper motor is accessed to rotate in forward direction

摘要

The device has a memory (13), which is so arranged that it saves a previous defined phase. A forward control device is so arranged that it supplies the control signal to the stepper motor (3) so that the stepper motor is accessed to rotate in a forward direction. The driven construction part is moved against the dead stop (10) after a stoppage by a dead stop device. The normal control device controls the stepper motor such that it again rotates after another stoppage by another dead stop device. An independent claim is also included for a method for controlling a stepper motor.