Mitsubishi Electric M700VS Series Setup Manual page 97

MITSUBISHI CNC
7 Setting the Position Detection System
(8) Start JOG operation.
The axis moves automatically as follow.
1) The axis moves toward the machine end stopper at the push speed. (a in the diagram).
2) The axis pushes against the machine end stopper. After the current reached its limit continually during given
time period, the axis returns toward the approach point at the "push speed". (b in the diagram)
3) After arrived at the approach point, the axis moves toward the machine end stopper at the "push speed". (c in
the diagram)
4) The axis pushes against the machine end stopper. After the current reached its limit continually during the
given time period, the axis returns toward the grid point immediately before the stopper at the "push speed". (d
in the diagram)
If "#2059 zerbas" is set to "0" (absolute position origin point = mechanical basic position), the axis will stop
automatically at this point without moving in the opposite direction, and "Complete" appears in the [State] and
"0.000" in the [Machine end].
[State] will change as follow:
[Stopper1] -> [Zero-P. Rel.] -> [Stopper2] -> [Ret. Ref. P.]
(9) When the axis has reached the grid point immediately before the stopper (e in the diagram) and the absolute
position is established, "Complete" will appear in "State".
The distance between the machine end stopper and the grid point immediately before the stopper will appear in
[Machine end].
Select [Next axis] menu, and perform the absolute position initial set up for all axes.
(10) Turn the power OFF and ON.
Basic machine coordinate system
zero point
Reference position
parameter
"#2037 G53ofs"
"#2 Zero-P" depends on the setting of "#2059 zerbas".
80
Initialization start point
Reference
position
"#2 Zero-P" (#2059 zerbas=1)
"#2 Zero-P" (#2059 zerbas=0)
Push speed
a
b
c
e d
Grid point
(electric basic
"Machine end"
position)
"#2056 aproch"
Machine end stopper
(mechanical basic
position)