GSK 980TDi, Руководство пользователя

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Chapter 3 G Commands
147
Ⅰ
Programming
4) There is no thread run-out when J=0 or J=0, K=0;
5) Length of thread run-out is J=K when J
≠ 0,K=0;
6) There is no thread run-out when J=0,K ≠ 0;
7) When parameter No. 107 sets to 0, the tail-retraction angle is matched with the J or K ratio.
When the No. 107 does not set to 0, the tail-retraction speed of the short axis is regarded as
parameter setting value, and the tail-retraction angle is determined by thread cutting speed
and short axis tail-retraction speed;
8) After executing the feed hold in thread cutting, the system does not stop cutting until the
thread cutting is completed with
Pause
on screen;
9) After executing single block in thread cutting, the program run stops after the system returns
to starting point(one thread cutting cycle is completed);
10) They are executed as the positive values when J, K negative values are input;
11) Thread cutting decelerates to stop when the system resets, emergently stops or its driver
alarms.
Command path: relative position between thread cutting end point and starting point with U, W, R
and tool path and thread run-out direction with different U, W, R signs below:
1
）
U>0
，
W<0
，
R>0 2
）
U<0
，
W<0
，
R<0
X
Z
R
W
④
③
②
①
U/2
U/2
①
②
③
④
W
R
Z
X
J
K
K
J
3 ） U>0 ， W>0 ， R<0 、 │ R │≤│ U/2 │ 4 ） U<0 ， W>0 ， R>0 、 │ R │≤│ U/2 │
X
Z
R
W
④
③
②
① U/2
①
②
③
④
W
R
Z
X
U/2
U/2
K
J
K
J
Fig.3-90
Example
：
Fig.3-91