GSK 218M, Руководство по подключению и программированию PLC

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GSK218M CNC System Connection and PLC Manual
98
6 Interpolation Function
6.1 Thread cutting
6.1.1 Thread cutting
General Tool movement can be synchronized with spindle rotation when cutting
threads.
The spindle speed is continuously read through the postion coder attached to
the spindle. Then, it is converted to a cutting federate(feed per minute) to feed
the tool.
During general, thread cutting is repeated along the same tool path during
rought cutting through finish cutting for a screw. Since thread cutting starts when
the postion coder mounted on the spindle outputs a 1-turn signal, threading is
started at a fixed point and the tool path on the workpiece is unchanged for
repeated thread cutting. Note that the spindle speed must remaduring constant
from rought cutting through finish cutting. If not, incorrect thread lead will occur.
Signal Thread cutting signal
THRD<F002#3>
[
Function
] This signal indicates that thread cutting is during progress.
[
Output conditions
] The signal is “1” when:
·During thread cutting mode
·Thread cutting cycle mode
The signal is “0” when:
· Neither thread cutting mode nor thead cutting cycle mode.
Signal address
THRD
F002
＃
7
＃
6
＃
5
＃
4
＃
3
＃
2
＃
1
＃
0