Method for checking the functionality of an actuator

A method for checking the functionality of an actuator is provided. A control valve is adjusted by an actuating drive by a manipulating element engaging the control valve, a position encoder captures the actual position of the manipulating element, and an electro-pneumatic position controller genera...

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Bibliographische Detailangaben
Hauptverfasser:	BRAUN MICHAELA, HIRSCH VOLKER
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	A method for checking the functionality of an actuator is provided. A control valve is adjusted by an actuating drive by a manipulating element engaging the control valve, a position encoder captures the actual position of the manipulating element, and an electro-pneumatic position controller generates a pneumatic actuating variable as a function of the actual position and a target position. The actuating variable is applied to the actuating drive by an activated magnetic valve that is deactivated to vent the actuating drive. The magnetic valve is briefly deactivated so that it may be tested, such that the manipulating element moves through only a part of its adjustment path. The magnetic valve test is evaluated as successful if the manipulating element has moved at least a prescribed minimum distance.