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

18. MEMORY OPERATION BY
FS15 TAPE FORMAT
B–62754EN/01
PROGRAMMING
336
Some G codes are valid only for this CNC tape format or FS15 tape
format. Specifying an invalid G code results in P/S alarm No. 10 being
generated.
G codes valid only for the FS15 tape format G81, G82, G83.1, G84.2
G codes valid only for the Series 16/18/160/180
tape format
G87, G88
For this CNC tape format, the positioning plane and drilling axis are
determined according to the G code for the canned cycle used.
For the FS15 tape format, the positioning plane and drilling axis are
determined according to G17/G19.
The drilling axis is the basic axis (Z–axis or X–axis) that does not lie in
the positioning plane.
G code Positioning plane Drilling axis
G17 XY plane Z–axis
G19 YZ plane X–axis
Resetting bit 1 (FXY) of parameter No. 5101 enables fixing of the drilling
axis to the Z–axis.
Data for the canned cycle is specified as follows:
Gjj X C Z R Q P F L ;
Drilling mode
Hole position data
Drilling data Number of repetitions
Setting Address Explanation
Drilling
mode
Gjj Canned drilling cycle G code
Hole posi-
tion data
X/U (Z/W)
C/H
Incremental or absolute value used to specify the
hole position
Z/W (X/U)
Incremental or absolute value used to specify the
distance from the R position to the bottom of the
hole
Drilling
mode
R
Incremental value used to specify the distance
from the initial level to the R position, or absolute
value used to specify the R position. Which to use
depends on bit 6 of parameter No. 5102 and the G
code system being used.
mo
d
e
Q
Incremental value used to specify the depth of cut
in each G83 or G83.1 cycle with radius program-
ming.
P
Dwell time at the bottom of the hole. The relation-
ship between the dwell time and the specified val-
ue is the same as that for G04.
F Cutting feedrate
Number of
repetitions
L
Number of repetitions for a sequence of cutting
operations. If L is not specified, it is assumed to
be 1.
D G code
D Positioning plane and
drilling axis
D Details of data
specifying machining

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