3.3.6 Zero-setting/Presetting
The KA counter appends convenient capabilities to the zero-set and preset functions to
facilitate lathe-machining operation.
Zero-setting or presetting in the KA counter is
performed not only for the currently displayed
value, but also for the display values of other
tools. Each reference point is parallel
translated. If the tool No. 1 tip is on the
workpiece surface as shown in the figure, the
reference point of tool No. 1 is translated to
the workpiece surface and the counter
display becomes 0.000 when zero-setting is
performed. At the same time the reference
points of other tools are also translated to this
position.
Since the reference points of all tools are
calculated into the same point, the operator
can concentrate on machining without being
aware of the tool length difference.
TIP
If zero-setting and presetting are repeated some times for all tools after setting the
X-axis resolution to 0.002mm, the display values may be indicated as if they had a
dispersion of 0.002mm (actual length: 0.001mm). This is because the counter counts as
precisely as possible and rounds off the display value. The counter will operate properly
since it is not a malfunction.
3.3.7 Tool number switch
The tool number can be changed from 1 to 2 by observing the following procedure.
No. 99MBE032A
3-32
