
4. PROGRAM FORMAT
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Function Explanation
High-precision contour
control
AI high–precision con-
tour control
AI nano high–precision
contour control
(G05)
Some machining errors are due to the CNC. Such
errors include machining errors caused by accelera-
tion/deceleration after interpolation. To eliminate
these errors, the following functions are performed at
high speed by an RISC processor.
(1) Function for multiple-block look-ahead accelera-
tion/deceleration before interpolation. This func-
tion eliminates machining errors due to accelera-
tion/deceleration.
(2) Automatic speed control function which enables
smooth acceleration/deceleration by considering
changes in the figure and speed and allowable
acceleration for the machine. This is performed
by reading multiple blocks in advance.
Smooth interpolation
(G05.1)
Either of two types of machining can be selected,
depending on the program command.
D For those portions where the accuracy of the fig-
ure is critical, such as at corners, machining is
performed exactly as specified by the program
command.
D For those portions having a large radius of curva-
ture where a smooth figure must be created,
points along the machining path are interpolated
with a smooth curve, calculated from the polygo-
nal lines specified with the program command
(smooth interpolation).
Smooth interpolation can be specified in high–speed
contour control, AI high–precision contour control, or
AI nano high–precision contour control mode.
AI contour control
AI nano contour control
AI advanced preview
control
(G05.1)
Among machining errors, errors caused by accelera-
tion/deceleration after interpolation are associated
with the CNC. The functions below are used to elimi-
nate these errors.
(1) Multiple–block look–ahead acceleration/decel-
eration function before interpolation that elimi-
nates machining errors caused by acceleration/
deceleration
(2) Automatic speed control that, by reading multiple
blocks in advance, can realize smooth accelera-
tion/deceleration considering figures, speed
changes, and allowable machine acceleration/
deceleration
High–speed HRV mode
(G05.4)
By using a servo system that supports high–speed
HRV, fast and high–precision high–speed HRV con-
trol can be exercised.