04.97 Programming of Traversing Blocks
• Interpolation (G00, G01) with maximum loop-over (G64)
With interpolation, a loop-over in the braking point is not possible because the axis must
not leave the programmed contour. With interpolation, G64 always traverses to "digital
zero".
Traversing to "digital zero" means
that the interpolator must have
reached the programmed position.
S
Nominal curve
Actual curve
Digital zero
Programming:
N10 G90 G01 X100.000 F1000.00
N20 Y100.000
N30 Y300.000 F2000.00
N40 X300.000 Y500.000
N50 X500.000 Y700.000
N60 X600.000 Y800.000 F1000.00
N10 N20 N30
v-t diagrams
N40
V
x
2000
1000
V
y
V
Bahn
N50 N60
2000
1000
2000
1000
t
t
t
N10: The X-axis moves with velocity F1000.00 to position X100.000.
N20: At "digital zero" of the X-axis, the Y-axis is started and moves with velocity F1000.00
to position Y100.000.
N30: At "digital zero", the Y-axis accelerates to the new velocity F2000.00.
N40: At "digital zero" of the Y-axis, the X and Y-axis accelerate with interpolation to their
path velocity F2000.00.
N50: Block change is again effected at "digital zero".
N60: At "digital zero", the X and Y-axes traverse at the new path velocity F1000.00 to
positions X600.000 Y800.000.
©
Siemens AG 1997 All Rights Reserved 6ZB5 440-0VU02
4 – 21
WF 723 C (Programming Guide)
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