Mitsubishi Electric MELDAS C6 Programming Manual page 112

12. Tool Offset Functions
(3) Axis valid for tool length offset
(a) When parameter "#1080 Dril_Z" is set to "1", the tool length offset is always applied on the
Z axis.
(b) When parameter "#1080 Dril_Z" is set to "0", the axis will depend on the axis address
commanded in the same block as G43. The order of priority is shown below.
Zp > Yp > Xp
(Example 5)
The handling of the additional axis will follow the parameters "#1029 to 1031 aux_I, J and
K" settings.
If the tool length offset is commanded for the rotary axis, set the rotary axis name for one
of the parallel axes.
(c) If H (offset No.) is not designated in the same block as G43, the Z axis will be valid.
(Example 6)
(4) Movement during other commands in tool length offset modal
(a) If reference point return is executed with G28 and manual operation, the tool length offset
will be canceled when the reference point return is completed.
(Example 7)
(b) The movement is commanded to the G53 machine coordinate system, the axis will move
to the machine position when the tool offset amount is canceled. When the G54 to G49
workpiece coordinate system is returned to, the position returned to will be the
coordinates shifted by the tool offset amount.
G43 Xx1 Hh1 ; ................+ offset to X axis
:
G49 Xx2 ;
:
G44 Yy1 Hh2 ; ................−offset to Y axis
:
G49 Yy2 ;
:
G43 αα1 Hh3 ; ................+ offset to additional offset
:
G49 αα1 ;
:
G43 Xx3 Yy3 Zz3 ; .........Offset is applied on Z axis
:
G49 ;
G43 Hh1 ; .........................Offset and cancel to X axis
:
49 ;
G43 Zz1 Hh1 ;
:
G28 Zz2 ; ........................ Canceled when reference point is reached.
:
G43 Zz2 Hh2 ;
:
G49 G28 Zz2 ; ................ After the Z axis is canceled, reference point
104
12.2 Tool length offset/cancel
(Same as G49)
return is executed.