
Turning Operations
Chapter 18
18-10
After the control executes the G24 block, the control re-executes the cycle
for any following block that commands axis motion (until the cycle is
canceled). The values of the axis words in the following block replace the
values of the parameters specified in the original G24 block and the cycle
is re-executed using these new values.
Figure 18.9 applies only if programming X and Z as incremental values. If
programming X and Z as absolute values, the depth of taper K is added or
subtracted (depending on its sign) to the absolute Z-axis position.
Figure 18.9
Effect of Positive and Negative Parameter Values in a G24 Block
(incremental X and X only)
Grind/Dressfeed
Rapid feed
Z
X
K
Z
X
K
X
ZK
KZ
X
When Xispositive and Z and K are negative
G24X+__Z-__K-__;
When XandKare positiveand Z isnegative
G24X+__Z-__K+__;
When X,Z andK
arenegative
G24X-__Z-__K-__;
When X and Z are
negativeand K is positive
G24X-__Z-__K+__;
Note:
|K|≤ |X|
Grinding
wheel
Grinding
wheel
12068-I
After the control executes this G24 block, the control re-executes the cycle
for any following block that contains an axis word (until the cycle is
canceled). The values of the axis words in the following block replace the
values of the parameters specified in the original G24 block and the cycle
is re-executed using these new values.
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