
6. C–AXIS CONTROL
B–64153EN/01
84
This function performs C–axis offset as part of a tool change operation
based on a T command, either before or after the mechanical
attachment/detachment of rotary tools and tool holders.
1 Exchanging a regular tool with a rotary tool
T command
T code output
TF
Tool indexing
C axis offset
CPEN signal
(Coupling enable signal)
TFIN
Next block
Coupling operation
Indexing by C–axis command
DFDC signal
(C–axis unconnected
signal)
C–axis connection confirmation
(1)
(2)
(3)
(4)
(1)When a T command supporting angle change is specified, a T code
and the TF signal are output. At the same time, tool indexing and
C–axis offset are performed.
(2)Upon the completion of tool indexing and C–axis offset, the CNC
sets the coupling enable signal CPEN to 1. Using this signal, the
machine couples the C–axis and tool holder. The PMC sets C–axis
unconnected signal DFDC to 0 to notify the CNC that coupling has
been completed.
(3)Then upon the completion of tool change, the PMC returns the
TFIN signal to the CNC.
(4)Tool angle change is performed according to the C–axis command.
6.2.2
C–axis Offset Type B
General
Operation