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14.1.6 Workpiece Position Measurement
M720VW
M system
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L system
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The workpiece position measurement function is used to measure each axis' coordinate point by installing a
sensor on the spindle and the sensor contacting the workpiece with the manual feed or handle feed.
The surface, hole center and width center coordinates are calculated from the measured coordinates, and
those calculated results are set in the workpiece coordinate offset.
The axis to be measured is designated with parameter.
The workpiece position measurement is available for all the part systems.
Here the measurement axes are explained as "X", "Y" and "Z".
(1) Surface workpiece offset measurement
The workpiece position measurement coordinates are calculated from the skip machine position of
the X, Y and Z axes.
Measurement position coordinate X = X axis' skip machine position + sensor diameter/2 ± center
compensation amount (horizontal) ± skip flow amount (horizontal)
Measurement position coordinate Y = Y axis' skip machine position + sensor diameter/2 ± center
compensation amount (vertical) ± skip flow amount (vertical)
Measurement position coordinate Z = Z axis' skip machine position - sensor length
The sensor diameter/2 and skip flow amount change between +/- with the tool movement direction
during the measurement.
The X and Y axes use the sensor diameter, center compensation amount (horizontal/vertical) and
skip flow amount (horizontal/vertical).
The Z axis uses the sensor length.
The measurement position coordinate of the X axis, Y axis or Z axis is set in the specified
workpiece coordinate offset.
X
(b)
(a) Workpiece coordinate zero point
(b) Y axis measurement constant position
(c) X axis measurement constant position
M730VW
M750VW
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(a)
To set the workpiece coordinate offset, the X axis
is measured and the X axis' offset coordinate is
set. Then, the Y axis' offset is measured and set.
Finally, the Z axis' offset is measured and set.
(c)
Y
M700V Series Specifications Manual
14 Automation Support Functions
M720VS
M730VS
M750VS
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III - 319
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