Patent ID: 6611121
Filing Date: 2003-08-26
Classification: G05B

Abstract:
A method for automatically freeing an axis which, after overrunning a safe end position is monitored to ascertain when the axis is at a standstill, comprising switching off the monitoring for overrunning the safe end positions; defining a freeing range by setting a first limit value in the axis's traversing direction which led to the overrunning of the safe end position to the greater limit in absolute terms of a monitored standstill range of the axis; setting a second limit value in the axis's other traversing direction, to a value of the safe end position which corresponds to said direction for activating monitoring of overrunning a freeing range;deactivating the monitoring for a standstill of the axis; moving the axis back into a normal traversing range within the safe end positions; activating the monitoring for overrunning the safe end positions; and deactivating the monitoring for overrunning the freeing range.