The whole transport zone is running with the same MDX, so in this case the zones should be as long as possible to reduce the number of inverters. In the transport zone is also only a low force necessary, therefore only on the bottom level are motors mounted. To increase the length of the zones in the transport zone, more motors (a transport motor consists of a single segment) are connected serial. How many motors are connected serial is depending on the speed in the transport zone. To reduce the self induction e.m.f., the windings of these motors are reduced. This leads to a higher current in order to reach the same force level. The transport zone motors are equipped with two Pt100, one is connected and the other one is for spare.