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

PROGRAMMING
14. FUNCTIONS TO SIMPLIFY
PROGRAMMING
B–62764EN/01
176
Assume that the U, V and W axes be parallel to the X, Y, and Z axes
respectively. This condition is specified by parameter No. 1022.
G17 G81 ………Z _ _ : The Z axis is used for drilling.
G17
G81 ………W _ _ : The W axis is used for drilling.
G18 G81 ………Y _ _ : The Y axis is used for drilling.
G18 G81 ………V _ _ : The V axis is used for drilling.
G19 G81 ………X _ _ : The X axis is used for drilling.
G19 G81 ………U _ _ : The U axis is used for drilling
.
G17 to G19 may be specified in a block in which any of G73 to G89 is
not specified.
WARNING
Switch the drilling axis after canceling a canned cycle.
NOTE
A parameter FXY (No. 6200 #0) can be set to the Z axis
always used as the drilling axis. When FXY=0, the Z axis
is always the drilling axis.
The travel distance along the drilling axis varies for G90 and G91 as
follows:
Z=0
R
Z
G90 (Absolute Command)
R
Z
G91 (Incremental Command)
Point R
Point Z
Point R
Point Z
G73, G74, G76, and G81 to G89 are modal G codes and remain in effect
until canceled. When in effect, the current state is the drilling mode.
Once drilling data is specified in the drilling mode, the data is retained
until modified or canceled.
Specify all necessary drilling data at the beginning of canned cycles; when
canned cycles are being performed, specify data modifications only.
Examples
D Travel distance along the
drilling axis G90/G91
D Drilling mode

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