
7.FEEDRATE CONTROL/ACCELERATION AND DECELERATION CONTROL B-63323EN-1/03
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7.2.3 Corner Control
7.2.3.1 In-position check
General
Whether the position of the servo motor is within a specified range is
checked.
If the in-position check function is enabled, the CNC checks the
position during deceleration. If the position is found to exceed the
specified range, the CNC does not execute the next block.
NOTE
The purpose of in-position check is to check that the
servo motor has reached within a specified range
(specified with parameter No. 1000#0).
Signal
In-position check signal
*CSMZ <G008#1>
[Classification] Input signal
[Function] Determines whether the in-position check is to be performed in the
gaps between blocks in cutting feed during automatic operation.
Generally, in the gaps between blocks in cutting feed, slight rounding
occurs due to the delay of acceleration/deceleration and servo. By
performing the in-position check (waiting for the delay of
acceleration/deceleration and servo before executing the next block),
this rounding can be removed.
[Operation] If this signal is "0" at a gap between blocks in cutting feed during
automatic operation, the system performs the in-position check before
proceeding to the next block.
If it is "1," the system proceeds to the next block immediately without
performing the in-position check.
NOTE
1 Before and after a positioning block, the in-position
check is performed regardless of the setting of this
signal.
2 Generally, this signal is manipulated with the
appropriate auxiliary function so that whether to
perform the in-position check can be specified from
a program. Because, however, the state in which
this signal is "0" is equivalent to that in which a
program specifies G09 or G61, it is recommended
that these preparatory functions be applied except
where other reasons make their application
impossible.