A conveyor system, in particular for supplying packaging machines, which has a revolving conveyor segment with a curved region. The method and apparatus selectively switches from a first strand to a second strand dependent on a state of a computer system. One or both of the compressors can be equipped with a pulse width modulated capacity control system and a vapor injection system. A drive strength of the equalizing transmitter and a drive strength of an equalizing signal driver within the equalizer are adjusted based, at least in part, on whether the first signal exceeds the first and second thresholds. Among distances between adjacent contact portions of the plurality of contact portions of the first edge guide, at least one distance is different from another distance. When being restarted by the reset, the control device for a vehicle determines on the basis of the error information whether or not there is updated data in which an error has occurred, and when there is updated data in which an error has occurred, overwrites the updated data with a fixed value prior to the error detection.