Patent ID: 6563281
Filing Date: 2003-05-13
Classification: B25J,Y10S

Abstract:
A device for monitoring an operation of a driving arrangement comprising at least one servo mechanism, which includes a regulator, a driving motor controlled by this regulator and an element which can be set in motion by the driving motor, a detection arrangement for detecting deviations between intended and actual movement positions of the element and an operation inhibiting and/or alarming arrangement for inhibiting the operation of the driving arrangement and/or starting an alarm when impermissible deviations have been established by the detection arrangement, the device comprising a redundant driving arrangement, which comprises at least one redundant servomechanism, including a redundant regulator, a redundant driving motor controlled by this redundant regulator and a redundant element which can be set in motion by this redundant driving motor, wherein the regulator and the redundant regulator are connected to an arrangement delivering control information for imparting to the element and the redundant element same movements or movements having a predetermined relation to each other, and that the detection arrangement is arranged to detect deviations concerning the relative position or movements of the element, or an object connected thereto, and the redundant element.