
5. BACK MACHINING FUNCTIONS
FOR A LATHE WITH
A SUB–SPINDLE
B–63284EN/03
TYPES OF MACHINING
PROGRAMS
482
In conversational programming, the following functions can be used to
create a program for machining with a sub–spindle.
These optional functions are valid when bit 6 (2SP) of parameter No. 9771
is set to 1.
#7
9771
#6
2SP
#5 #4 #3 #2 #1 #0
2SP 1 : Enables the conversational function for 1–turret/2–spindle type
lathes.
0 : The above function is disabled.
(1) The main spindle (main) or sub–spindle (sub) can be selected for
each machining process.
(2) A program for machining with the main spindle or sub–spindle can
be selected for each tool.
(3) Some processes can be moved from the main spindle to the
sub–spindle and vice versa. The processes that can be moved are
limited. They include bar machining and grooving.
(This parameter is available in the one–path lathe.)
5.1
SELECTING THE
SUB–SPINDLE