Supplementary Conditions; Examples - Siemens SINUMERIK 840D Function Manual

14.2.12

Supplementary conditions

Transformations
Transformations are not permissible in curve tables. TRAANG is an exception.
TRAANG
If TRAANG is programmed, the rule of motion programmed in the basic co-ordinate system is
transformed to the associated machine co-ordinate system. In this way it is possible to program
a curve table as Cartesian co-ordinates for a machine with inclined linear axes.
The condition that stipulates that "the direction of motion of the leading axis must not reverse
at any point of the rule of motion" must then be met in the machine co-ordinate system. Please
note that this condition in the basic co-ordinate system does not have the same meaning as in
the machine co-ordinate system, since the contour tangents are changed by the transformation.
14.2.13

Examples

Definition of a curve table with linear sets
%_N_TAB_1_NOTPERI_MPF
;$PATH=/_N_WKS_DIR/_N_KURVENTABELLEN_WPD
; Def.TAB1 0-100mm Kue1/1 notperio.
N10 CTABDEF(YGEO,XGEO,1,0)
N1000 XGEO=0 YGEO=0
N1010 XGEO=100 YGEO=100
CTABEND
M30
Definition of a curve table with polynomial sets
%_N_TAB_1_NOTPERI_MPF
;$PATH=/_N_WKS_DIR/_N_KURVENTABELLEN_WPD
; Def.TAB1 0-100mm Kue1/1 notperio.
N10 CTABDEF(Y,X,1,0)
N16 G1 X0.000 Y0.000
N17 POLY PO[X]=(31.734,0.352,-0.412) PO[Y]=(3.200,2.383,0.401)
N18 PO[X]=(49.711,-0.297,0.169) PO[Y]=(7.457,1.202,-0.643)
N19 PO[X]=(105.941,1.961,-0.938) PO[Y]=(11.708,-6.820,-1.718)
N20 PO[X]=(132.644,-0.196,-0.053) PO[Y]=(6.815,-2.743,0.724)
N21 PO[X]=(147.754,-0.116,0.103) PO[Y]=(3.359,-0.188,0.277)
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA
M3: Coupled axes
14.2 Curve tables
; FA=Y LA=X Curve No..=1 Not
period.
; Start values
; FA=Y LA=X Curve
No..=1 Not period.
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