
B–64113EN–1/01
2. PREPARATIONS FOR OPERATION
149
The chuck/tailstock barrier function prevents damage to the machine by
checking whether the tool tip interferes with either the chuck or tailstock.
Specify an area into which the tool may not enter (entry–prohibition area).
This is done using the special setting screen, according to the shapes of
the chuck and tailstock. If the tool tip should enter the set area during a
machining operation, this function stops the tool and outputs an alarm
message.
The tool can be removed from the prohibited area only by retracting it in
the direction from which the tool entered the area.
[Classification] Input signal
[Function] Enables or disables the tailstock barrier.
[Operation] When this signal is set to 1, the control unit operates as follows:
– Disables the tailstock barrier, even when the G22 command (stored
stroke check on) is specified in the program.
G code *TSB Tailstock barrier Chuck barrier
0 Enabled Enabled
1 Disabled Enabled
0 Disabled Disabled
1 Disabled Disabled
When the G23 command (stored stroke check off) is specified, the
tailstock barrier is disabled regardless of the *TSB signal. When the G22
command (stored stroke check on) is specified, the tailstock can be
disabled by setting the signal to 1.
This signal is used to select whether the tailstock area is a prohibited area.
It is used whenever M commands are applied, resulting in the tailstock
being attached to the workpiece or detached from the wokpiece while the
workpiece is being machined.
2.3.4
Chuck/Tailstock Barrier
(T series)
General
Signal
Tailstock barrier select
signal *TSB <G060#7>