| 摘要 |
The disclosure relates to an actuating drive for control of an actuating element for automation in process installations. An exemplary actuating device drive for control of an actuating element comprising: a position detection device configured for detection of an actual position of the actuating element; a regulator unit configured for operational connection with the position detection device for comparison of an actual position with a predeterminable set position and for production of an actuating signal for driving the actuating drive, wherein the position detection device has a pattern support, at least part of whose surface is covered by a pattern which can be scanned optically; and a stationary optical scanning device, whose optical axis is aligned with the pattern.
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