Mitsubishi Electric MELDAS C6 Instruction Manual page 367

(3) Zero point initialization
The zero point is initialized using the ABS POSITION SET screen and JOG or handle. The
execution status of the initialization process is displayed at "STATE" on the ABS POSITION SET
screen.
The operation methods differ according to the zero point initialization method.
Each operation procedure is described below.
The machine end stopper method includes the manual initialization and automatic initialization
methods.
(a) Manual initialization
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4. Absolute Position Detection System
4.3 Starting Up the Absolute Position Detection System
Machine end stopper method
With this method, the axis is pressed against the machine end stopper using handle or
JOG.
Set the following parameters before initializing the zero point.
(Refer to the Appendices for details.)
#2054 clpush
[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 stopper method is applied for the axis for
which the zero point is to be initialized.
("TYPE" on the ABS POSITION SET screen is
.)
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) Push against the machine end stopper.
7) Check that the "STATE" display indicates pushing.
(When the axis is pushed against the machine end stopper
and the current limit is reached continuously for a set time,
the display will change to
between the machine end and previous grid will appear at
"TO END".)
8) Move in the opposite direction of the pushed direction.
9) When the previous grid is reached, the movement will
automatically 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.
search engine
. The distance
RELEASE
III - 18
"STATE" display
•
when absolute
NG
position has been lost
•
when absolute
OK
position has been
established
STOPPER
RELEASE
ORIG-RTN
OK