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The drilling cycle motions generally are classified into the following seven.
Motion 1:Rapid positioning up to the initial point of X (Z) and C axes.
If the "positioning axis in-position width" is designated, the in-position check is conducted upon
completion of the block.
Motion 2:Output if the C axis clamp M code is given.
Motion 3:Rapid positioning up to the R point.
Motion 4:Hole machining at cutting feed.
If the "drilling axis in-position width" is designated, the in-position check is conducted upon
completion of the block. However, in the case of deep-hole drilling cycles 1 and 2, the in-position
check is not conducted with the drilling of any holes except the last one. The in-position check is
conducted at the commanded hole bottom position (last hole drilling).
Motion 5: Motion at the hole bottom position. It varies depending on the fixed cycle mode.
Spindle CCW (M04), spindle CW (M03), dwell, etc., are included.
Motion 6:Return to the R point.
Motion 7:Return to the initial point at rapid traverse feed.
(Motions 6 and 5 may be conducted as a single motion depending on the fixed cycle mode.)
(Note)
With a synchronous tap command, the in-position check is conducted in accordance with the
parameters.
Whether the fixed cycle is complete with motion 6 or 7 can be specified by using either of the following G
commands:
G98 : Initial level return
G99 : R point level return
These commands are modal. For example, once G98 is given, the G98 mode is entered until G99 is given.
The G98 mode is entered in the initial state when the controller is ready.
Motion 1
Motion 2
Initial point
Motion 3
Motion 7
R point
Motion 4
Motion 6
Motion 5
M700V Series Specifications Manual
12 Program Support Functions
III - 203
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