Marked Point Alignment Method Ii - Mitsubishi Electric M700VS Series Setup Manual

MITSUBISHI CNC
7 Setting the Position Detection System

7.1.2 Marked Point Alignment Method II

This is a method to align to the marked point (matchmark or marking line) on the machine.
(1) Select [Param] on the Mainte screen, then select [Abs pos param].
On the absolute position parameter screen, set "#2049 type (Absolute position detection method)" to "4" for the axis
for which the zero point is to be initialized.
(2) Turn the power OFF and ON.
(3) Select [Mainte] and then [To abs pos]. The absolute position setting screen appears.
(4) Select [Axis select]. Enter the axis name (in "#1022 axname2 (2nd axis name)") and press the INPUT key.
(5) Select the handle (handle axis) or JOG mode.
(6) Input "1" to "#0 Absolute posn set" on the absolute position setting screen.
(7) Input a value to "#2 Zero-P".
(8) Move the axis toward the machine basic position and align it to the marked point. ((a) in the following diagram)
Basic machine
coordinate system
zero point
Reference position
parameter
"#2037 G53ofs"
(9) Input "1" to "#1 Origin-P" on the absolute position setting screen.
(10) When the absolute position has been completed, "State" area on the absolute position setting screen shows
"Complete".
Select [Next axis] and execute the absolute position initialization for all the axes.
(11) Turn the power OFF and ON.
(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 to the marked point is attempted without passing the grid point even 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 the 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 the zero point shift ("#2027 G28sft") is invalid.
(Note 4) This method is not interfered by the setting of "#2059 zerbas", and the basic position is always where the
marked point alignment is attempted.
78
Initialization start point
(a)
Reference
position
"#2 Zero-P"
Mechanical basic position
(Marked point)