Siemens SINUMERIK 840D Function Manual

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14.5.9 Behavior with rotary axesRotary axes as leading or following axesIt is possible to couple rotary axes to a linear axis and vice versa. Note that a direct assignmentof degrees to mm must be performed using the coupling rule.Example:A = Rotary axis, X = Linear axisProgramming CommentN10 G0 A0 X0 ; Traverse motion:X = 0 mm, A = 0 degreesN20 CPON=(A) CPLA[A]=(X) CPLNUM[A,X]=2 ; A coupling module for rotary ax-is A with linear axis X as lead-ing axis is created and activa-ted. The coupling value is 2.N30 X100 ; Traverse motion:X = 100 mm, A = 200 degrees (=100*2)Modulo reduced rotary axes as leading axesWith modulo reduced rotary axes as leading axes, the input variable is not reduced during thereduction of the leading axis. The non-reduced position is still taken as the input variable, i.e.the traversed distance is considered.Example:A = Modulo reduced rotary axis, X = Linear axisProgramming CommentN10 G0 A0 X0 ; Traverse motion:X = 0 degrees, X = 0 mmN20 CPON=(X) CPLA[X]=(A) CPLNUM[X,A]=0.5 ; A coupling module for linear ax-is X with rotary axis A as lead-ing axis is created and activa-ted. The coupling value is 0.5.N30 A200 ; Traverse motion:A = 200 degrees, X = 100 mm(= 200*0.5)N40 A=IC(200) ; A traverses through 200 degreesin a positive direction to 400degrees, Display A = 40. X tra-verses through 100 mm to 200.N50 A=IC(100) ; A traverses from 40 degrees to140 degrees, X traverses throughadditional 50mm to 250.M3: Coupled axes14.5 Generic couplingAxes and spindles550 Function Manual, 06/2019, A5E47437747B AA