Mitsubishi Electric MELDAS C6 Instruction Manual page 374

(b) Setting the reference point
(c) Common precautions for initialization operations
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4. Absolute Position Detection System
4.3 Starting Up the Absolute Position Detection System
The reference point can be set as shown below by setting the "#2037 G53ofs".
(Example 1) To set the reference point to the same position as the basic machine
coordinate system zero point.
Reference point
Basic machine
coordinate system
zero point
(Example 2) To set the reference point at a position 200.0mm to the + side from the basic
machine coordinate zero point.
(To set the basic machine coordinate system zero point 300.0mm front of the
absolute position origin point.)
Basic machine
coordinate system
zero point
• The "#0 INIT. SET" parameter (axis for which zero point is to be initialized) can be set
simultaneously for all axes or individually for each axis.
• The "#0 INIT. SET" parameter cannot be turned OFF with the keys. It is turned OFF when
the power is turned ON again. If this parameter is ON for even one axis, the message
"INITIAL SET (ABS)" will appear in the operation status display area of all screens, and
axis in initialization will be output. The automatic, MDI and manual zero point return
operations will be interlocked at this time.
• "#2 ZERO" can be set at any time as long as "#0 INIT. SET" is set to "1".
• The grid point must be passed at least once after turning the power ON before initializing
the zero point. If the grid point has not been passed, "NOT PASS" will appear at the "MAC
POS" display.
• When the absolute position is established, the required data will be stored in the memory.
search engine
"G53ofs" = 0
"#2 ZERO"
"G53ofs" = 200.0
Reference point
"ZERO" = 300.0
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Absolute position
origin point
Absolute position
origin point