
B-63782EN/01 NC FUNCTIONS 3.INTERPOLATION FUNCTION
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3.15 HYPOTHETICAL AXIS INTERPOLATION (G07)
In helical interpolation, when pulses are distributed with one of the
circular interpolation axes set to a hypothetical axis, sine interpolation
is enabled.
When one of the circular interpolation axes is set to a hypothetical axis,
pulse distribution causes the speed of movement along the remaining
axis to change sinusoidally. If the major axis for threading (the axis
along which the machine travels the longest distance) is set to a
hypothetical axis, threading with a fractional lead is enabled. The axis
to be set as the hypothetical axis is specified with G07.
Y
r
0
Z
1
2
Fig.3.15 Sine interpolation
Format
G07 α
αα
α0; Hypothetical axis setting
G07 α
αα
α1; Hypothetical axis cancel
Where, α is any one of the addresses of the controlled axes.