Automatic Coordinate System Setting - Mitsubishi Electric MELDAS C6 Programming Manual

14. Coordinates System Setting Functions

14.6 Automatic coordinate system setting

Function and purpose
This function creates each coordinate system according to the parameter values input beforehand
from the setting and display unit when the reference point is reached with the first manual
reference point return or dog-type reference point return when the NC power is turned ON.
Work coordinate
system 3 (G56)
Work coordinate
system 6 (G59)
Detailed description
(1) The coordinate systems created by this function are as follow:
(a) Basic machine coordinate system
(b) Work coordinate systems (G54 to G59)
(2) The parameters related to the coordinate system all provide the distance from the zero point of
the basic machine coordinate system. Therefore, it is decided at which position in the basic
machine coordinate system the first reference point should be set and then the zero point
positions of the work coordinate systems are set.
(3) When the automatic coordinate system setting function is executed, the following functions
are canceled: workpiece coordinate system shift based on G92, local coordinate system
setting based on G52, workpiece coordinate system shift based on origin setting and
workpiece coordinate system shift based on manual interrupt.
(4) When a parameter has been used to select the dog-type of first manual reference point return
or automatic reference point return after the power has been turned ON, the dog-type
reference point return will be executed for the 2nd and subsequent manual reference point
returns or automatic reference point returns.
CAUTION
If the workpiece coordinate offset amount is changed during automatic operation
(including single block operation), the changes will be valid from the next block of the
command several blocks later.
14.6 Automatic coordinate system setting
Basic machine coordinate
y
3
Work coordinate
system 2 (G55)
x
3
Work coordinate
system 5 (G58)
283
y
2
Work coordinate
system 1 (G54)
x
2
y
4
Work coordinate
system 4 (G57)
x
4
Machine
zero point
x
1
y
1
1st reference
point