Specifications

2 PARAMETER
2-132
Classification
USER
Display title
EIA/ISO
Address Meaning Description
Fine spline interpolation curve error
(Block including the point of inflection)
Program type
E
Conditions
Immediate
F102
Unit 0.0001 mm/0.00001 inch
Setting range 0 to 99999999
During block checking in the fine spline interpolation mode, if the spline
curve of a specific block is judged to include an inflection point and the
maximum chord error between the spline curve and the block is larger
than the value of F102, the shape of the curve will be modified to reduce
the maximum chord error below the value of F102.
Modified spline curve
Original spline curve
F102
or less
BA
D735S0001
Spline interpolation fairing block length
Program type
E
Conditions
Immediate
F103
Unit 0.0001 mm/0.00001 inch
Setting range 0 to 99999999
If a block whose length is less than the value of F103 is detected during
fine spline interpolation, that block will be skipped and integrated (faired)
into the preceding and succeeding blocks to create a spline curve.
Suppose that the i-th block in the fine spline interpolation mode has a
block length of l
i
:
If I
i – 1
is greater than F103 × 2
I
i
is equal to or less than F103
I
i + 1
is greater than F103 × 2
then the ending point of the “i – 1” th block and the starting point of the “i +
1” th block will be modified to the middle point of the i-th block and this
block will be deleted. A spline curve will be created from the sequence of
points updated this way.
I
i – 1
>
F103
× 2
I
i
≤ F103
I
i + 1
>
F103
× 2
After-modification
of relay points
Created spline curve
D735S0002
If the length of the starting block or ending block in the fine spline
interpolation mode is smaller than the value of F103, processing will
slightly differ from that described above. Refer to the relevant specification
for further details.
This parameter is effective when bit 1 of F96 is 1.
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