| 摘要 |
A method and an electronic device are disclosed, for finding an opening point for an electropneumatic valve, which method or electronic device can be used in a closed control loop for position regulation of a switching element of a pneumatic actuating drive for a fitting which can be operated thereby. An exemplary method can include: a) energizing the electropneumatic valve by a drive signal which corresponds to an estimated opening point; b) measuring control-loop characteristics for this drive signal by using sensors to detect movement of the switching element; c) if determined control-loop characteristics for a present opening point do not correspond to nominal presets, then varying the drive signal based on an evaluation result to produce a better-matched opening point, and the finding process then starts again with step a).
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