Elektromotorischer Stellantrieb mit Steuereinheit für Zwischenposition

摘要

The end positions and intermediate positions of the drive member (12) are detected by end switches (13,14) and at least one intermediate switch (15). The intermediate switch has a change-over contact. A control unit (1) for intermediate position control includes at least one bridge switch and at least one control block. The bridge switch is connected in parallel with at least one contact path of the intermediate switch.