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MITSUBISHI CNC
6 Maintenance Screens
Procedures (Marked point alignment method II)
Set the following parameter beforehand in the "Abs.Posit.Param." screen.
#2049 type (absolute position detection type)
(1)
Select the axis that "#2049 type" is "4".
Select the HANDLE mode, HANDLE FEED AXIS
(2)
SELECT mode, or JOG mode.
(3)
Input "1" to "#0 Absolute posn set".
(4)
Input an arbitrary value to "#2 Zero-P".
Move the axis toward the mechanical basic position
and align it to the marked point. → a
Input "1" to "#1 Origin-P".
Basic machine
coordinate system
zero point
Reference position
parameter
"#2037 G53ofs"
(Note 1) To change just the basic machine coordinate zero point, set "#0 Absolute posn set" and "#2 Zero-P", and then
turn the power OFF and ON.
(Note 2) If aligning axis on the marked point is attempted without passing the grip point once after turning the power
ON, the operation message "Not passed on grid" will appear. Return to a point before the last grid, and then
repeat from step of aligning the axis on the marked point.
(Note 3) If the first grid point is covered by the grid mask (#2028 grmask) as a result of return to the electric basic
position, the axis stops at the next grid point.
Note that zero-point shift amount (#2027 G28sft) is invalid.
I - 402
Parameter
Initialization start point
Reference
position
"#2 Zero-P"
Setting value
4 (marked point alignment method II is selected)
Refer to "6.6.1 Selecting the Axis" for procedures to select the
axis.
The input value appears at "#0 Absolute posn set".
The input value appears at "#2 Zero-P".
State: [Origin Set]
The input value appears at "#1 Origin-P".
State: [Complete]
Machine end: 0.000
Machine posn: The value set in "#2 ZERO"
a
Machine end
stopper
(mechanical
basic position)
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