GSK 980MDc, Руководство пользователя

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CHAPTER 2 MSTF CODES
21
I Programming
Manual feed: exponential type rear acceleration or deceleration ;
MPG feed: exponential type rear acceleration or deceleration ;
Step feed: exponential type rear acceleration or deceleration.
Fig. 2-9
When the cutting feed is performed, this GSK980MDc adopts exponential rear acceleration or
deceleration, an arc transition will be formed for the acceleration or deceleration at the meeting point of the
path for the adjacent two cutting feed blocks, when the BIT5 of the bit parameter No.007 is set to 0. A
contour error exists between the actual tool path and the programmed path when the positioning is not
enough accurate at the meeting point of the two paths.
In order to avoid this kind of error, the exact stop command (G04;) can be inserted between the two
blocks or the BIT5 of the CNC bit parameter No.007 is set to 1. Now, the previous block is decelerated to
zero speed and it is positioned to the end of the block, and then the next cutting feed block is performed.
The following block can be performed because each block is accelerating from the initial speed
and then decelerating to zero at last. If the program time is increasing, it may cause the lower
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