
B–63522EN/02
17. MEASUREMENT FUNCTIONS
NC FUNCTION
243
By installing the touch sensor and by manually making the tool contact
the touch sensor, it is possible to set the offset amount of that tool
automatically in the tool offset amount memory. It is also possible to set
the work coordinate system shift amount automatically.
In addition, a tool setter function for one–turret two–spindle lathes is
provided so that the tool compensation value measured value direct input
B function can be used for both spindles of a one–turret two–spindle lathe.
As the touch sensor detection mode, either four–contact input mode or
single–contact input mode can be selected.
1) Four–contact input (when bit 3 (TS1) of parameter No. 5004 is set to 0)
The touch sensor has contact faces in two directions along each axis,
and outputs four signals when a touch is detected. These signals are
input to the CNC as tool compensation value writing signals (+MIT1,
+MIT2, –MIT1, and –MIT2).
When any of these input signals is input, the CNC stops feed in the
corresponding direction along the corresponding axis.
2) Single–contact input (when bit 3 (TS1) of parameter No. 5004 is set
to 1)
The touch sensor outputs one signal when a touch by a single–contact
input is detected. This signal is input to the CNC as the tool
compensation value writing signal (+MIT1).
Then, the CNC determines the two directions along each axis
automatically and stops feed in the corresponding direction along the
corresponding axis.
Parameter
Signal
TS1=0 TS1=1
+MIT1 Contact the (+) contact face of the
X–axis (Contact in the X+ direction)
The two directions
along each axis is de-
termined automatically.
–MIT1 Contact the (–) contact face of the
X–axis (Contact in the X– direction)
Not used
+MIT2 Contact the (+) contact face of the
Z–axis (Contact in the Z+ direction)
Not used
–MIT2 Contact the (–) contact face of the
Z–axis (Contact in the Z– direction)
Not used
17.10
TOOL
COMPENSATION
VALUE MEASURED
VALUE DIRECT INPUT
B (T series)
T series
Explanations
D Touch sensor