
PROGRAMMING AND
OPERATION BY SYMBOLIC FAPT
B–61804E–2/05
5. BALANCE CUT FAPT FUNCTION
(2–PATH LATHE ONLY)
190
Balance cut can be used in the following processes.
Type A: (1) Roughing of outer diameter (not edges)
(2) Semi–finishing of outer diameter (not edges)
(3) Finishing of outer diameter (not edges)
Type B: (1) Roughing of outer diameter
Type A and Type B are distinguished by the value that is set for “DELAY
AMOUNT” on the data screen. The delay amount determines how much
the head 2 tool lags behind the head 1 tool during machining. Type A is
selected by setting.
DELAY AMOUNT to 0 (no delay), and type B by setting it to a positive
value.
When type B is selected, the tool of turret 2 follows the tool of turret 1
while maintaining the delay specified in revolving speed. (The S code is
output to the program of turret 1.)
System parameter No.707 specifies which process should be a balance
cutting process and whether the machining type should initially be type
A or type B.
#7
707
#6 #5 #4 #3 #2 #1 #0
Bit 0 Roughing of outer diameter
Bit 1 Semi–finishing of outer diameter
Bit 2 Finishing of outer diameter
0 : Not a balance cutting process
1 : Can be a balance cutting process when conditions are met
Bit 7 Roughing of outer diameter by balance cutting
0 : Sets the value of system parameter No.757 as the initial value of the
DELAY AMOUNT prompt on the tool data screen. This selects type
B.
1 : Sets 0 as the initial value of the DELAY AMOUNT prompt on the tool
data screen. This selects type A.
757
Initial value of DELAY AMOUNT on the tool data screen
[Unit] rev
5.1
BALANCE CUTTING
PROCESS
System parameter
System parameter