FANUC Series 16/18/160/180-Model C Machining Center Operators Manual

PROGRAMMING
B–62764EN/01
4. INTERPOLATION FUNCTIONS
69
Interpolated by smooth curve
Interpolated by smooth curve
N17
N16
N1
N2
N15
N14
N13
N12
N11
N10
N9
N3
N4
N5
N6
N7
N8
Linear interpolation
Linear interpolation
N17
N16
N1
N2
N15
N14
N13
N12
N11
N10
N9
N3
N4
N5
N6
N7
N8
Smooth interpolation is performed when all the following conditions are
satisfied. If any of the following conditions is not satisfied for a block,
that block is executed without smooth interpolation then the conditions
are checked for the next block.
(1)The machining length specified in the block is shorter than the length
specified with parameter No. 8486.
(2)The machining length is other than 0.
(3)The modes are:
G01 : Linear interpolation
G13.1 : Polar coordinate interpolation cancel
G15 : Polar coordinate command cancel
G40 : Cutter compensation cancel
(except for 3–dimensional tool compensation)
G64 : Cutting mode
G80 : Canned cycle cancel
G94 : Feed per minute
(4)Machining is specified only along the axes specified with G05.1Q2.
(5)The block is judged to be unsuitable for smooth interpolation, as
performed with the internal algorithm of the CNC.
(1)Auxiliary and second auxiliary functions
(2)M98, M99 : Subprogram call
M198 : Calling a subprogram in external memory
Examples
D Conditions for
performing smooth
interpolation
D Commands which cancel
smooth interpolation

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