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Siemens SINUMERIK 840D sl Function Manual
Also see for SINUMERIK 840D sl: ManualFunction manualFunction manualFunction manualFunction manual
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Detailed description2.4 FramesBasic logic functions: Axes, coordinate systems, frames (K2)118 Function Manual, 11/2006, 6FC5397-0BP10-2BA00297 $& []$X[LOLDU\SODQHProgramming with MOVT is independent of the existence of a toolholder that can be oriented.The direction of the motion is dependent on the active plane.It runs in the directions of the vertical axes, i.e., with G17 in Z direction, with G18 in Ydirection and with G19 in X direction. This applies both where no orientational toolholder isactive and for the case of an orientational toolholder without rotary tool or with a rotary tool inits basic setting.MOVT acts similarly for active orientation transformation (345axis transformation).If in a block with MOVT the tool orientation is changed simultaneously (e.g., active 5axistransformation by means of simultaneous interpolation of the rotary axes), the orientation atthe start of the block is decisive for the direction of movement of MOVT.With an active 5-axis transformation, the path of the tool center point (TCP) is not affected bythe change of orientation, i.e., the path remains a straight line and its direction is determinedby the tool orientation at the start of the block.If MOVT is programmed, linear or spline interpolation must be active (G0,G1, ASPLINE,BSPLINE, CSPLINE). Otherwise, an alarm is produced.If a spline interpolation is active, the resultant path is generally not a straight line, since theend point calculated by MOVT is treated as if it had been programmed explicitly with X, Y, Z.A block with MOVT must not contain any programming of geometry axes (alarm 14157). |
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