
As for the way to command rotary axes, there are two types, as described below, one
of which is used depending on how the direction of the tool axis is specified.
(1) Type 1
The block end point of the rotation axes is specified (e.g. A, B, C).
The CNC performs tool length compensation by the specified amount in the
tool axis direction that is calculated from the specified position of the rotation
axes and exerts control so that the tip of the tool moves along the specified
path.
(2) Type 2
The direction of the tool axis (I, J, K) at the block end point, as seen from the
coordinate system fixed on the table, is specified, instead of the position of the
rotation axes.
The CNC calculates an end point of the rotation axes where the tool direction
is the direction specified by (I,J,K), performs tool length compensation by the
specified amount in the tool axis direction that is calculated from the position of
the rotation axes, and exerts control so that the tip of the tool moves along the
specified path.
B-63534EN/02-05
Edit
Apprv. Desig.
Sheet
Title
Draw
No.
Date
Design
Description
Date
FANUC Series 16i/160i/160is-MB,18i/180i/180is-MB5,
18i/180i/180is-MB OPERATOR’S MANUAL
Concerning the addition of TOOL CENTER POINT
CONTROL FOR 5-AXIS MACHINING
Oct.27.2003
T. Horie
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