| 摘要 |
A drive unit is provided, particularly a drive unit for operating flow-control valves, comprising a housing, an electrical input, an electromechanical converter assembly, a mechanical output, and an electronic controller. The controller comprises an input unit having at least one pushbutton, which penetrates the housing and can be depressed against the action of a restoring device, and comprises a contactless switch that is actuated by the at least one pushbutton. A mechanical stop independent of the switch itself is associated with the position of the pushbutton that actuates the switch. |
| 主权项 |
1. A drive unit (3), especially for actuation of flow-regulating valves (2), comprising a housing (4), an electrical input (5), an electromechanical transducer group (69), a mechanical output (6) and an electronic controller, wherein the controller has an electronic display (10) and comprises an input unit (8) with several pushbuttons (9) that penetrate the housing (4), are disposed adjacent to the display (10) and can be depressed against the action of a restoring device (26), characterized by contactless switches (36) actuated by the pushbuttons(9), wherein mechanical stops (29, 52, 55, 59) independent of the switches (36) themselves are assigned to the positions of the pushbutton (9) actuating the switches (36), wherein further the assignment of the switching functions active in the controller to the individual pushbuttons (9) can be varied and the display (10) comprises an operating-information area (63) and at least one actuation-information area (64) adjacent to the pushbuttons (9), wherein the current assignment of the function to the individual pushbuttons (9) is indicated in the actuation-information area (64). |
