Mitsubishi Electric MELDAS C6 Programming Manual page 161

13. Program Support Functions
Positioning plane and hole drilling axis
The canned cycle has basic control elements for the positioning plane and hole drilling axis. The
positioning plane is determined by the G17, G18 and G19 plane selection command, and the hole
drilling axis is the axis perpendicular (X, Y, Z or parallel axis) to the above plane.
Plane selection
G17 (X − Y)
G18 (Z − X)
G19 (Y − Z)
Xp, Yp and Zp indicate the basic axes X, Y and Z or an axis parallel to the basic axis.
A random axis other than the hole drilling axis can be commanded for positioning.
The hole drilling axis is determined by the axis address of the hole drilling axis commanded in the
same block as G81 to G89, G73, G74 or G76. The basic axis will be the hole drilling axis if there is
no designation.
(Example 1) When G17 (XY plane) is selected, and the axis parallel to the Z axis is set as the W
axis.
G81 ... W__;
G81 ... Z __;
G81 ... ;
(Note 1) The hole drilling axis can be fixed to the Z axis with parameter #1080 Dril_Z.
(Note 2) Change over the hole drilling axis in the canned cycle canceled state.
In the following explanations on the movement in each canned cycle mode, the XY plane is used
for the positioning plane and the Z axis for the hole drilling axis.
Note that all command values will be incremental values, the positioning plane will be the XY plane
and the hole drilling axis will be the Z axis.
Positioning plane
Xp − Yp
Zp − Xp
Yp − Zp
The W axis is used as the hole drilling axis.
The Z axis is used as the hole drilling axis.
(No Z or W) The Z axis is used as the hole drilling axis.
153
13.1 Canned cycles
Hole drilling axis
Zp
Yp
Xp