
21. AXIS CONTROL
B–64112EN/01
NC FUNCTION
214
For T series, even if the X axis is not vertical to the Z axis (for T series,
the Y axis not vertical to the Z axis), they are assumed to form a
orthogonal coordinate system, simplifying programming. The movement
of each axis is automatically controlled according to the slant angle.
X’
X
Z
θ
Y’
Y
Z
θ
For T series For M series
Command
Machine movement
With arbitrary angular axis control, however, any axes can be specified
as the angular and perpendicular axes, by specifying parameters
accordingly.
When enough torque for driving a large table cannot be produced by only
one motor, two motors can be used for movement along a single axis.
Positioning is performed by the main motor only. The sub motor is used
only to produce torque. With this tandem control function, the torque
produced can be doubled.
Table
Ball screw
Main motor
Sub motor
Example of operation
In general, the CNC regards tandem control as being performed for one
axis. However, for servo parameter management and servo alarm
monitoring, tandem control is regarded as being performed for two axes.
21.10
ANGULAR AXIS
CONTROL
21.11
ARBITRARY
ANGULAR AXIS
CONTROL
21.12
TANDEM CONTROL