6. SAFETY FUNCTIONS
Tailstock barrier setting screen
L = 100.000
D = 200.000
BARRIER (TAILSTOCK) O0000 N00000
MDI **** *** *** 14:46:09
[ INPUT ][ +INPUT ][ SET ][ ][ ]
ACTUAL POSITION (ABSOLUTE)
X 200.000 Z 50.000
D2 D1 D
4 Position the cursor to each item defining the shape of the chuck or
tailstock, enter the corresponding value, then press the
key. The value is set. Pressing the
[+INPUT] soft key after a value has
been entered adds the entered value to the current value, the new
setting being the sum of the two values.
Items CX and CZ, both on the chuck barrier setting screen, and item
TZ on the tailstock barrier setting screen can also be set in another
way. Manually move the tool to the desired position, then press the
[SET] soft key to set the coordinate(s) of the tool in the workpiece
coordinate system. If a tool having an offset other than 0 is manually
moved to the desired position with no compensation applied,
compensate for the tool offset in the set coordinate system.
Items other than CX, CZ, and TZ cannot be set by using the
When the tool tip enters the entry–inhibition area during machining,
the function stops the movement of the tool and displays an alarm
message. Since the machine system can stop only a slight delay after
the CNC stops, the tool will actually stop moving at a point within the
specified boundary. For safety, therefore, set an area a little larger than
the determined area. The distance between the boundaries of these two
areas, L, is calculated from the following equation, based on the rapid
L + (Rapid traverse Rate)
When the rapid traverse rate is 15 m/min, for example, set an area
having a boundary 2 mm outside that of the determined area.
The shapes of the chuck and tailstock can be set using parameters No.
1330 to 1345.
Set G23 mode before attempting to specify the shapes of
the chuck and tailstock.