包装机（10）具有至少一个用于驱动至少一个可移动部件的伺服驱动器，其中a）伺服驱动器与驱动马达（10）自动脱离。当第一操作模式被传送到第二操作模式时 或者，当伺服驱动器处于第一操作模式时，操作者将扭矩，特别是预定幅度的最小扭矩施加到伺服驱动器的伺服电动机的轴上，或者b）伺服驱动器从第二 当伺服驱动器的伺服电动机的轴被带入预定的期望的旋转位置时，特别是通过联接到轴上的机械或电子手轮（28）进入第一操作模式。

The invention relates to a method for the safe operation of a packaging machine (10) for producing packs of smokable products - such as cigarettes -, wherein the packaging machine (10) comprises at least one servo drive for driving at least one movable member, wherein
a) is automatically transferred to the servo drive of the first to the second mode when, - while the servo actuator is in the first mode - by an operator, a torque, in particular a minimum torque of predetermined magnitude is applied to the shaft of the servo motor of the servo drive, or wherein
b) the servo drive is automatically transferred from the second to the first mode, when the shaft of the servo motor of the servo drive is brought to a predetermined target rotational position by rotation of an operator, in particular by means of a coupled, mechanical or electronic to the shaft of the hand wheel (28).