Yaskawa J50M Instructions - Manual (Page 76)

2.9.27 HOLE PATTERN CYCLES (G70, G71, G72) t (Cent’d) G70, and G72 are non-modal G codes.
Give G70, G71 or G72 command in a canned
The machining control of G70, or G72 ends
with the drilling of the last hole, and to move
the tool to the next position, the G90 (absolute)
mode is more convenient than the
(incre-
mental) mode, because the latter involves com-
plicated calculations.
Immediately after the completion of the machining
process as commanded by G70,
or G72, the
canned cycle is still effective, and care must be taken
in programming the subsequent block. Be sure to can-
cel the canned cycle by G80.
If G70, or G72 command is given in the tool
radius compensation mode ( G41 or G42) , the
cle mode only. If they are given without
gramming any canned cycle, the ALARM code
will displayed.
2.9.28 CANNED CYCLES
G74, G76, G77, G80 TO G89, G98, G99) t
Canned cycles G74, G76, G77, G80 to G89,
G98, G 99) are simplified programs that contain
specific movements over a number of blocks in
one block. 14 types of cycles are available, and
G80 code is commanded for canceling them .
ALARM code will be displayed.
Table 2.27
G code Plunging At hole bottom R e t r a c t i o n Application
G73
G74
G76
Wood pecker
feed
Feed
Rapid traverse High speed deep
hole drilling
Reverse tapping Spindle forward Spindle reversing
running after after feed
dwell
Spindle index- Rapid traverse
i n g shift, spindle
start
Dwell Rapid traverse
spindle indexing
shift r a p i d
traverse
shift, spindle
start
Rapid traverse
Dwell Rapid traverse
Rapid traverse
Feed Boring
G77
G80
G82
G83
Spindle index-
ing
shift
rapid traverse
shift
spindle
s t a r t feed
Back boring
Cancel
Feed Drilling
Spot, facing Feed
Wood pecker
feed Deep hole
drilling
Spindle Spindle forward
ing after dwell running after
feed
Feed
Spindle stop Rapid traverse
Spindle start
Spindle stop Manual retraction
Spindle start
Spindle stop Manual retraction
after dwell Spindle start
Dwell Feed
G84
G85
G86
G87
G88
G89
Feed Tapping
Feed Boring
Feed Boring
Feed Boring
B o r i n g F e e d
Feed Boring
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