Mitsubishi Electric MELDAS C6 Instruction Manual page 372

With this method, the axis is aligned to the machine's basic point (marked point) using handle or
JOG.
Set the following parameters before initializing the zero point.
(Refer to the Appendices for details.)
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4. Absolute Position Detection System
4.3 Starting Up the Absolute Position Detection System
Marked point alignment method
#2050 absdir :Base point of Z-direction
#2054 clpush :Current limit
[Operation procedure/operation]
Operation procedure
1) Select the ABS POSITION SET screen.
2) Select the handle mode or the JOG mode.
3) Check that the marked point alignment method is
applied for the axis for which the zero point is to be
initialized.
("TYPE" on the ABS POSITION SET screen is
.)
NO-STOPPER
4) Set "1" for "#0 INIT. SET" of the axis for which the zero
point is to be initialized.
5) Set "#2 ZERO".
6) Move to the machine basic position and align to the
marked point.
7) Set "1" in "#1 ORIGIN".
8) Move in the direction designated with the parameter
"#2050 absdir".
9) When the first grid is reached, the movement will automati-
cally stop.
The basic machine coordinate system will be automati-
cally set.
The absolute position is established at this stage.
10) This completes the zero point initialization.
Initialize all axes and then turn the power ON again.
11) Output the parameters.
When changing only the basic machine coordinate zero point, carry out steps 4) and 5)
above and then turn the power OFF and ON.
Basic machine
coordinate zero point
#2037 "G53ofs"
• The "#2 ZERO" is selected with the parameters.
Marked point alignment operation diagram
search engine
Start point
Machine zero point
"#2 ZERO" (#2059 zerbas = 1)
"#2 ZERO" (#2059 zerbas = 0)
III - 23
"STATE" display
•
when absolute
NG
position has been lost
•
when absolute
OK
position has been
established
ORIGIN SET
ORIG-RTN
OK
6)
9) 8) 7)
Mechanical basic
position
Grid point (Electrical
basic position)
"TO END"