
B–63682EN/01
20. AXES CONTROL
NC FUNCTION
143
Any axis can be released from the control of CNC and directly controlled
from PMC. That is, input of commands such as moving distance and feed
rate commands from PMC allows the axis to move independently of other
axes moving under control of CNC. Therefore, use of an axis of CNC
enables control of peripheral devices such as a turret, pallet, and index
table. Which of CNC and PMC controls each axis can be selected by the
input signal.
The following operations can be directly controlled from PMC:
(1) Rapid traverse with the specified moving distance.
(2) Cutting feed per minute with a movement amount specified
(3) Skip per minute with a movement amount specified
(4) Dwelling
(5) Continuous feed
(6) Reference position return
(7) First reference position return
(8) Second reference position return
(9) Third reference position return
(10) Fourth reference position return
(11) Speed command
(12) Auxiliary function, auxiliary function 2, auxiliary function 3
(13) Machine coordinate system selection
(14) Torque control command
Four systems of input/output signals are available, which enable these
operations to be specified from the PMC. In other words, the PMC can
control more than one axis automatically and independently using these
commands. The correspondence between an I/O signal system and an
axis to be controlled with the I/O signal system must previously specified
using parameters. It is possible to assign a single I/O signal system to
more than one axis for simultaneous movement.
20.10
AXIS CONTROL WITH
PMC