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4. REFERENCE POSITION ESTABLISHMENT
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The G28 command positions the tool to the reference position, via the
specified intermediate point, along the specified axis, then sets the
completion signal for reference position return (see Section 4.1) to 1.
The reference position must be set in parameter No. 1240 with the
coordinates specified in the machine coordinate system, before issuing
the G28 command.
The tool moves to the intermediate point or reference position at the rapid
traverse rate.
#7
1006
#6 #5
ZMIx
#4 #3 #2 #1 #0
NOTE
After setting this parameter, turn the power off then on again
so that the setting will take effect.
[Data type] Bit axis
ZMIx The direction of reference position return and the direction of initial
backlash at power--on
0 : Positive direction
1 : Negative direction
1240
Coordinate value of the reference position on each axis in the machine
coordinate system
NOTE
After setting this parameter, turn the power off then on again
so that the setting will take effect.
[Data type] Two--word axis
Increment system IS--A IS--B IS--C Unit
Millimeter machine 0.01 0.001 0.0001 mm
Inch machine 0.001 0.0001 0.00001 inch
Rotation axis 0.01 0.001 0.0001 deg
[Valid data range] --99999999 to 99999999
Set the coordinate values of the reference positions in the machine
coordinate system.
4.4
REFERENCE
POSITION RETURN
General
Parameter
[Unitofdata]