
13.
FUNCTIONS TO SiMPLlFY PROGRAMMING
13.1 Canned Cycles (G73, G74, 676, G78, G79, G80 to G89)
(2)
Deep-Hole Rigid Tap Cycle (PCP = 1)
G84
Initial point
. .
4
1
1
-I
I
I
I
UAvA A
Point R
9
+d
+
I, ’ +d
9
I
4
9
E, ‘-
Bottom
point of
the hole
Q represents the infeed once and is always instructed in an incremental
amount. Withdrawing override is valid for relief and up to d mm (or inch) before
the position worked immediately before. The command value of Q must always
be set positive. The sign is ignored if instructed in a negative value. d is set by
parameter (No. 5213).
13.1 .I 6
Notes on canned cycle specifications
( )
a
The spindle must be rotated by the miscellaneous function (M code) before a
canned cycle is specified.
M3;
Spindle CW
.
.
GI-i-[ . . . . . . . ; Correct
.
.
M5;
.
Spindle stop
(b)
G1-V-l . . . . . . .; Incorrect (M3 or M4 must be specified before )
If the block contains X or R drilling is performed in canned cycle mode. If the
block does not contain the X or R drilling is not performed. However,when
G04X
; is specified, .drilling is not performed even if X is specified.
GO0 X- ;
G81Z R F P K ;
- - B
.
9
(DrillinTis not performed)
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