METHOD FOR DETECTING THE ACTUATION OF A CONTROL ELEMENT OF A CONTROL FRONT OF AN INVERTER AND CONTROL FRONT FOR AN INVERTER

• US 20100253667A1
• Filed: 11/05/2008
• Published: 10/07/2010
• Est. Priority Date: 11/22/2007
• Status: Abandoned Application

• Current Assignee: Fronius International GmbH (G&K Privatstiftung)
• Original Assignee: Fronius International GmbH (G&K Privatstiftung)
• Inventors: Kreuzer, Harald Josef, Grossauer, Bernhard, Angerer, Christian
• Application Number:
  US12/734,734
• Publication Number:
  US 20100253667A1
• Time in Patent Office: Days
• US Class Current: 345/211
• CPC Class Codes: H02M 1/08 Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
• CPC Class Codes: H02M 7/48 using discharge tubes with control electrode or semiconductor devices with control electrode

Abstract

The invention relates to a method for detection of the actuation of at least one control element (16) of a control front (14) of an inverter (1) and to a control front (14) for an inverter (1) with at least one control element (16). The method essentially does not affect the efficiency of the inverter (1). The method provides that upon actuation of the at least one control element (16) at one secondary side of a transmitter (15), the transmitter will be placed under load, and the load will be detected and evaluated on one primary side of the transmitter (15) by a control apparatus (8), to which at least one actuated control element is allocated, wherein a voltage signal is applied to the primary side of the transmitter (15) and the actuation at least of one control element (16) is detected and evaluated at the voltage-free and/or unpowered secondary side of the transmitter (15) due to the change in the voltage signals at the primary side of the transmitter (15).

Claims

1-9. -9. (canceled)

10. Method for the identification of an actuation of at least one of a plurality of galvanically isolated operating elements (16) of a front panel (14) of an inverter (1), wherein operating elements (16) are connected in series to different components (17), and when actuating at least one operating element (16) on a secondary side of a transformer (15), this is loaded and the loading is identified and evaluated on a primary side of the transformer (15) by a control device (8) and is assigned to the at least one actuated operating element (16), wherein a voltage signal is applied on the primary side of the transformer (15) and the actuation at least of one operating element (16) is identified and evaluated on the voltage- or current-supply-free secondary side of the transformer (15) by means of the different changing of the voltage signal on the primary side of the transformer (15).

11. Method according to claim 10, wherein for assigning the at least one actuated operating element (16), the changed voltage signal is compared with reference values stored in the control device (8).

12. Method according to claim 11, wherein a reference value is stored for each operating element (16) and a reference value is stored or established for combinations of at least two operating elements (16).

13. Method according to claim 10, wherein the voltage signal is essentially formed by a rectangular signal.

14. Method according to claim 10, wherein a display is activated in the case of the actuation of an operating element (16).

15. Front panel (14) for an inverter (1) with a plurality of galvanically isolated operating elements (16), wherein the operating elements (16) are connected on a secondary side of a transformer (15) and are connected to different components (17) in series connection, wherein the transformer (15) is loaded in the case of the actuation of at least one operating element (16), and wherein a primary side of the transformer (15) is connected to a control device (8) for evaluating the loading and assignment of the at least one actuated operating element (16), and wherein a device for generating a voltage signal for identifying an actuation at least of one of the operating elements (16) arranged on the voltage- or current-supply-free secondary side of the transformer (15) is connected to the primary side of the transformer (15), so that the transformer (15) is loaded differently in the case of the actuation of different operating elements (16).