
13. FUNCTIONS TO SIMPLIFY PROGRAMMING
13.1
Canned Cycles (G73, G74, G76, G78, G79, G80 to G89)
command of tapping cycle and
stops, the rigid mode turns on,
reverse tapping cycle which is
13.1.14 Rigid mode
To set the rigid mode, specify M29Ss % % m; before
reverse tapping cycle. By this operation, the spindle
and the rigid mode is set for the tapping cycle OI
commanded next.
c
M29 is called a rigid tapping prepare auxiliary function. The rigid tapping prepare
auxiliary function code can be changed to another M-code by setting the
corresponding value in the parameter MCODE (No. 5210). However, M29 is used
.
throughout this manual to make the description consistent. Specify G80; to reset the
rigid mode. The rigid mode can also be reset by another canned cycle G-code or the
.
group OlG code, that is, the commands that clear the tapping cycle.
The rigid mode is turned off by this rigid mode reset command. When the rigid
tapping is ended by the rigid mode reset command, the spindle stops and the S-code
goes to the state with SO specified.
The rigid mode can also be reset by the reset
operation (external reset). However, note that the canned cycle mode is not reset by
ttie reset operation.
0
( )
a
(b)
( 1
C
w
( )
e
M29Ssmmc
G74 or G84X R P F ;
B-B-
G80;
Rigid mode
Precautions on command
F
4 Sm % % % is a value of screw lead.
SZ % % s which is the max. rolling number of spindle axis for using gear must be
lower than the value set in the parameter TPSML (No. 5241), TPSMM (No.
5242), TPSMX (No. 5243). Otherwise, P/S alarm No. 200 occurs in the G[lrj
block.
F must be lower than the cutting feed rate upper limit value (parameter FEDMX
(No. 1422)).
Don’t specify S nor axis motion between M29 and G l_uI
Don’t specify M29 during tapping cycle.
P /S alarm No. 203 occurs in both cases.
Don’t specify S in the block immediately after the block of G [-Ill and G80.
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