Programming manual.
CNC 8070
16.
C AXIS
Activating the spindle as "C" axis.
·298·
(REF: 1709)
16.1 Activating the spindle as "C" axis.
To use a spindle as ·C· axis, it must be enabled as such first. Once this is done, it will be
possible to program machining operation on the face or on the side using the instructions
#FACE or #CYL respectively.
Activating the spindle as ·C· axis.
The #CAX instruction activates a spindle as ·C· axis.
The programming format is: Optional parameters are indicated between angle brackets.
#CAX [<{spdl}><,{name}>]
The spindle needs only be indicated when a spindle other than the master is to be activated
as a C axis. Otherwise, there is no need to program it.
The {name} parameter sets the name that will identify the C axis. This name will be used
in the part program to define the movements. If the name is not defined, the CNC assigns
a name by default. See "Configuration of a ·C· axis." on page 297.
Considerations about working with the C axis
Activating a running spindle as C axis stops the spindle. While being a spindle active as "C"
axis, no speed may be programmed for it.
When activating the spindle as "C" axis, the CNC carries out a home search of the "C" axis.
Accessing the variables of a spindle activated as C axis.
After activating a spindle as C axis, the new name of the spindle must be used to access
its variables from the part-program or MDI. The access to the variables from the PLCA or
from an interface does not change; the original name of the spindle remains unchanged.
Influence of the M3/M4/M5 functions.
If the spindle is working as C axis, executing an M3, M4 or M5 function will automatically
set the spindle in open loop (same as programming #CAX OFF).
Deactivating the spindle as C axis.
The C axis is deactivated with the #CAX instruction and the spindle goes back to working
as a normal spindle.
#CAX OFF
Programming the spindle as ·C· axis.
When the spindle works as ·C· axis, it will be programmed as if it were a rotary axis (in
degrees).
{spdl} Optional. Spindle to be activated as C axis.
{name} Optional. Name of the C axis.
#CAX
#CAX [S1]
#CAX [S,C]
Programming Spindle that is activated as ·C· axis. Axis name.
#CAX Master spindle. By default.
#CAX [S1] Spindle S1 (it may be the master). By default.
#CAX [S,C] Spindle S (it may be the master). C
#CAX [S3,B2] Spindle S3 (it may be the master). B2
#CAX OFF