6. C–AXIS CONTROL
2 Exchanging a rotary tool or tool in a multiple–tool holder with a
T code output
Positioning at C0°
(1)When a regular tool command is specified, the CNC performs
positioning at an angle of 0° on the C–axis. When a multiple–tool
holder is selected, the tool at 0° within the multiple–tool holder is
indexed. Then, the CNC sets the CPEN signal to 0.
(2)When the CPEN signal is set to 0, the machine detaches the C–axis
from tool holder.
(3)Once the C–axis is detached, the PMC sets the CFDC signal to 1.
When the CFDC signal is set to 1, the CNC cancels the C–axis
offset, and performs reference position return.
(4)Then, a T code and TF signal are output, after which tool indexing
(5)The PMC returns the TFIN signal to the CNC upon the completion
of tool change.