
B-63943EN-1/02 8.MULTI-PATH CONTROL
- 851 -
- Setting the positions for reference points of tool posts on individual paths
X described below is the axis for which 1 (X-axis of the three basic
axes) is set in parameter No. 1022 and Z is the axis for which 3
(Z-axis of the three basic axes) is set in the parameter. If an invalid
value is set in this parameter, a path interference check is not made.
(1) Setting the reference points for a two-path interference check
When bit 7 (IFP) of parameter No. 8140 is set to 0, a two-path
interference check is made.
When reference point return operation is completed with all axes (X1,
Z1, X2, Z2), the reference point of tool post 1 is set at the origin of the
ZX plane coordinate system. At this time, the position of the
reference point of tool post 2 is set in a parameter.
Tool post 2
Tool post 1
+
+Z
ε
Reference point
Reference point
In the ZX plane coordinate system at the origin of which the reference
point of tool post 1 is set, set the X coordinate (ε) of the reference
point of tool post 2 in parameter No. 8151, and its Z coordinate (ζ) in
parameter No.8152.
The unit of setting is the least command increment. For an axis subject
to diameter specification, a diameter value is to be specified.
Measure (ε) and (ζ) when reference point return operation is
completed with the four axes (X1, Z1, X2, Z2) (when the tools are in
their reference points). When relative coordinate parameters Nos.
8151 and 8152 of the tool posts are to be updated, reference point
return operation must always be completed with the four axes
beforehand. Otherwise, the internally memorized relational positions
of the tool posts are not updated to new parameter values.