Mitsubishi Electric MELDAS C6 Instruction Manual page 375

(5) Zero point initialization for dog type absolute position detection
(Note 1) If the dog type reference point return is stopped by resetting, the previous state (OK or NG)
(Note 2) After the absolute position has been established, save the necessary data in the memory.
(Note 3) With dog type reference point return, reference point return can be executed again even if
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4. Absolute Position Detection System
4.3 Starting Up the Absolute Position Detection System
By executing dog type reference point return with the manual reference point return mode or
automatic reference point return command (G28), the zero point will be initialized. The
execution stage of the initialization will be showed in the STATE column of the "ABS POSITION
SET" screen. The #0 "INIT. SET", #1 "ORIGIN" and #2 "ZERO" settings are invalid during dog
type absolute position detection.
[Operation procedure/operation]
1) Select the "ABS POSITION SET" screen.
2) Confirm that the axis to be zero point initialized is a "dog
type" axis. (See TYPE on the "ABS POSITION SET"
screen.)
3) Perform manual or automatic dog type reference point
return.
4) The basic machine coordinate system will be established
when the reference point is reached. The absolute
position is established at this stage, and the zero point
initialization is completed.
5) Output the parameters after reference point return is
completed for all axes.
will display in the STATE column.
the STATE is OK.
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Operation procedure
III - 26
"STATE" display
• NG if the absolute
position is lost.
• OK if the absolute
position is established.
ZP-RTN
COMPLETE