
Cylindrical Grinding Fixed Cycles
Chapter 17
17-33
Figure 17.10
G89 Multi-Step Plunge with Blend
Part
@F
@E
@,F
@,E
R
I
Q
Rapid Moves
K
Start Point
Part
@F
@E
@,F
@,E
R
I
Q
K
Start Point
Angled-Wheel Grinders in Two Step Grinding Mode (G16.4)
Non-AngledW heel Grindersor
Angled-WheelGrindersin Normal Grinding Mode(G16.3)or
G15 ModeinSelected Plane
Table 17.I
G89 Cycle Parameters
Parameter: Definition: Default Value: PossibleValue:
X
1
(planeaxis1) plunge end point value mustbe programmed abs.ori nc.
Z
1
(planeaxis2) shoulder end point modal while in cycle/value mustbe
programmed
abs.or inc.
R
3
clearanceplane modal while in cycle/zero ifnotprogrammed incremental, unsigned,
radiusor diametervalue
I
3
mediumplunge distance modal while in cycle/zero if not programmed incremental,unsigned,
radiusor diametervalue
Q
3
fineplunge distance modal while in cycle/zeroifnotprogrammed incremental, unsigned,
radiusor diametervalue
K
23
blend distance modal while in cycle/zero if notprogrammed incremental,signed,
radiusor diametervalue
F
2
coarseplunge feedrate lastfeedrate programmed valid F word
E
3
mediumplunge feedrate modal while in cycle/zero if notprogrammed valid F word
,F
3
fineandmicro-feed feedrate modal while in cycle/zero if notprogrammed valid F word
,E
3
blend feedrate modal while i n cycle/zero ifnotprogrammed valid F word
L
3
numberof spark-outrevolutionsinIPR
mode,secondsinIPM mode,orV/D mode
mustbe programmed integer fromzero to999
P
3 forG89 2 forG89.1
dressprogramnumber from last cycle programmed valid programnumber
1
mustbe programmed
2
musthave been programmed i n some previousblock if omitted
3
optional
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