A device for operating an articulated arm of a large
manipulator connected to a boom base. The large
manipulator comprises an articulated boom (22), composed of three boom arms (23 to 27), the boom arms of which may each be pivoted around mutually parallel horizontal articulation axis (28 to 32), in a limited manner. Furthermore, a control device (74), for the boom displacement is provided, which may be controlled from a remote controller (50) over a
data transmission path (68). The remote controller comprises a first and a second
remote control device (60, 62), each of which may be adjusted in at least one main control direction and thereby providing an output
signal (64, 66), while the control device (74) comprises a
computer supported coordinate
transformer (80), responsive to the output
signal (64) from the first
remote control device (60), by means of which the drive units (34 to 38) for the redundant articulation axes may be operated in the one main control direction (r) of the first
remote control device (60), according to the pattern of a pre-determined path-angle relationship. According to the invention, in order to match the boom configuration to differing operating tasks, the control device (74) comprises a correction routine (84) based on the output
signal (66) from the second remote control device (62), by means of which the drive unit of a selected articulation axis may be preferably operated in one of the main operating directions of the second remote control device (62).