Patent · US Active

Method and device for function-monitoring an actuator

US7694936B2 · kind B2 · utility

9Cited by

17References

23Claims

0Family size

Assignee

SAMSON AKTIENGESELLSCHAFT · DE

Inventors

Heinfried Hoffmann · Frankfurt, DE
Thomas Karte · Lemgo, DE
Jorg Kiesbauer · Eppertshausen, DE
Mario Menze · Hattersheim, DE
Ulrich Schulz · Havelsee, DE

Key dates

Filing date	Sep 14, 2006
Grant date	Apr 13, 2010
Priority date	—
Expiry date	Sep 11, 2027

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16K37/0083
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

In a method or device for function-monitoring an actuator in a process engineering plant, said actuator comprising a valve and an actuating drive for actuating said valve. A positioner is provided for setting a position of the valve, the positioner comprising a controller module. A predefined activation test signal is generated and applied to the controller module to position the actuator into a predefined function condition. A control signal is generated by the controller module for signalling the actuating drive in accordance with the activation test signal and an output control signal is sensed and monitored as compared to a reference control signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.