FANUC Series 16/18/160/180-Model C for Lathe Operator Manual

PROGRAMMING
B–62754EN/01
14. FUNCTIONS TO SIMPLIFY
PROGRAMMING
185
G72 P_ A_ B_ W_ U_ I_ K_ H_ ;
P : Gauge number (1 to 4)
A : First depth of cut
B : Second depth of cut
W : Grinding range
U : Dwell time Maximum specification time : 99999.999seconds
I : Feedrate of A and B
K : Feedrate of W
H : Number of repetitions Setting value : 1 to 9999
When the multistage skip operation is used, a gauge number can be
specified. The method of gauge number specification is the same as the
method of multistage skip function. When the multistage skip operation
is not used, the conventional skip signal is valid.
The same specifications as G71 apply except for gauge number
specification.
1. When the tool moves along the Z–axis to grind a workpiece, if a skip
signal is input, the tool returns to the Z coordinate where the cycle
started after the tool reaches the end of the specified grinding area.
(Termination)
(Skip signal)
(Skip signal)
(Termination)
2. When the tool cuts a workpiece along the X–axis, if a skip signal is
input, the tool stops cutting immediately and returns to the Z
coordinate where the cycle started.
(Termination)
(Skip signal)
(Skip signal)
(Termination)
3. The skip signal is valid during dwell, without being affected by
parameters DS1 to DS8 (No. 6206#0 to #7). Dwell is immediately
stopped for return to the Z axis coordinate where the cycle started.
14.4.2
Traverse Direct
Fixed–dimension
Grinding Cycle (G72)
Format
Explanations
D Operation at the time of
skip signal input

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