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Commands Calling Axis Movements

2.1 Interpolation commands

04.07

2-32

SINUMERIK 802D sl/840D/840D sl/840Di/840Di sl/810D ISO Milling (PGM) -- 04.07 Edition

Supplements to circular interpolation

A circular arc extending to multiple quadrants can be defined by the commands in

a single block. It is also possible to s pecify a full circle.

Example of programming

Y-axis

G02

10 20

X-axis

G00X0Y0;

G02 X0 Y0 I10 J0 F100;

Fig. 2-7 Full circle

With the commands of “G17 G02 (or G03) I ⋅⋅⋅ J ⋅⋅⋅ F ⋅⋅⋅ Ln;”, full-circle inter-

polation is repeated by n times. If address L is omitted, interpolation is executed

once. Execution of the commands with the single-block function ON causes full-

circle interpolation to be interrupted after the execution of one full-circle interpola-

tion.

2.1.4 Helical interpolation (G02, G03)

It is possible to execute linear interpolation in synchronization with circular interpo-

lation with the axis which is not included in the circular interpolation plane. This is

called helical interpolation. The command format is indicated below.

S In the XY plane

G17 G02 (or G03) X ⋅⋅ Y ⋅⋅ R ⋅⋅ (or I ⋅⋅ J ⋅⋅)Z(α, β) ⋅⋅ F ⋅⋅;

S In the ZX plane

G18 G02 (or G03) Z ⋅⋅ X ⋅⋅ R ⋅⋅ (or K ⋅⋅ I ⋅⋅)Y(α, β) ⋅⋅ F ⋅⋅;

S In the YZ plane

G19 G02 (or G03) Y ⋅⋅ Z ⋅⋅ R ⋅⋅ (or J ⋅⋅ K ⋅⋅)X(α, β) ⋅⋅ F ⋅⋅;

S In the Xα plane

G17 G02 (or G03) X ⋅⋅ α ⋅⋅ R ⋅⋅ (or I ⋅⋅ J ⋅⋅)Z(β) ⋅⋅ F ⋅⋅;

S In the Zα plane

G18 G02 (or G03) Z ⋅⋅ α ⋅⋅ R ⋅⋅ (or K ⋅⋅ I ⋅⋅)Y(β

) ⋅⋅ F ⋅⋅;

S In the Yα plane

G19 G02 (or G03) Y ⋅⋅ α ⋅⋅ R ⋅⋅ (or J ⋅⋅ K ⋅⋅)X(β) ⋅⋅ F ⋅⋅;

Siemens SINUMERIK 802D sl Programming Manual

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