
5.FEED FUNCTION NC FUNCTIONS B-63782EN/01
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5.6 SPEED CNTROL COMMAND AT THE CORNER OF BLOCK
5.6.1 Exact Stop (G09)
Move command in blocks commanded with G09 decelerates at the end
point, and in-position check is performed. G09 command is not
necessary for deceleration at the end point for positioning (G00) and in-
position check is also done automatically.
This function is used when sharp edges are required for workpiece
corners in cutting feed.
Exact stop off
Exact stop on (The in-position
check is performed at the end o
a block.)
5.6.2 Exact Stop Mode (G61)
When G61 is commanded, deceleration of cutting feed command at the
end point and in-position check is performed per block thereafter. This
G61 is valid till G64 (cutting mode), G62 (automatic corner override), or
G63 (tapping mode) is commanded.
5.6.3 Cutting Mode (G64)
When G64 is commanded, deceleration at the end point of each block
thereafter is not performed and cutting goes on to the next block. This
command is valid till G61 (exact stop mode), G62 (automatic corner
override), or G63 (tapping mode) is commanded.
5.6.4 Tapping Mode (G63)
When G63 is commanded, feed rate override is ignored (always
regarded as 100%), and feed hold also becomes invalid. Cutting feed
does not decelerate at the end of block to transfer to the next block. And
in-tapping signal is issued during tapping operation. This G63 is valid
till G61 (exact stop mode), G62 (automatic corner override), or G64
(cutting mode) is commanded.