13. Program Support Functions
13.1 Fixed Cycles
266
(j) G73 (Step cycle)
Program
G73 Xx
1
Yy
1
Zz
1
1
Rr
1
Ff
1
Pp
1
,Ii
1
,Jj
1
;
P : Dwell designation
G98 G99
mode mode
(1) G0 Xx
1
Yy
1
(2) G0 Zr
1
(3) G1 Zq
1
Ff
1
(4) G4 Pp
1
(5) G0 Z
−
m
(6) G1 Z
(q
1
+ m) Ff
1
:
(n) G98
mode G0Z
−
(z
1
+r
1
)
G99
mode
G0Z
−
z
1
(1)
(3)
x
1
, y
1
z
1
r
1
q
q
q
(n)
m
(n) -1
(2)
(4)
(5)
(6)
(n)
Operation
pattern
i1 j1
(1) Valid -
(2) -
Invalid
(3) -
Invalid
(4) - -
(5) -
Invalid
(6) -
Invalid
:
:
(n) -1
-
Invalid
(n) -
Valid
When executing a second and following cutting in the G73 as shown above, the
movement will return several mm (“m” mm in the figure above) with rapid traverse and
then will change to cutting feed.
The return amount m will differ according to the parameter "#8012 G73 return".
The operation stops at after the (1), (2) and (n) commands during single block operation.