
B–63523EN–1/03
2. PREPARATIONS FOR OPERATION
384
Series
16i/18i/160i/180i/
160is/180is
OPERATOR’S MANUAL
(For Lathe) (B–63524EN)
II.20.3 Tool post interference check
In automatic operation, before executing the move command by a given
block, the position of the end point is determined. It is calculated from the
current position of the machine and from the specified amount of travel. It
is also determined whether or not the tool will enter the prohibited area
defined by stored stroke check 1, 2 or 3. It it is determined that the tool will
enter the prohibited area defined by a stored stroke check, the tool is stopped
immediately once this block starts execution, and an alarm is displayed.
WARNING
Only the coordinates of the end point, reached as a result of
traversing the distance specified in each block, are checked
against the prohibited area. The coordinates along the path
are not checked. However, if the tool enters the prohibited
area defined by stored stroke check 1, 2, or 3, an alarm is
issued at that point along the path. (See the examples below.)
Example 1)
a
Prohibited area defined by
stored stroke check 1 or 2
Start point
End point
The tool is stopped at the point (a) which
is defined by stored stroke check 1 or 2.
Immediately upon movement commencing
from the start point, the tool is stopped,
since the end point is determined to be with-
in the prohibited zone.
Prohibited area defined by
stored stroke check 1 or 2
End point
Start point
Reference item
2.3.6
Stroke Limit Check
Before Move
General