OPERATION BY Symbolic FAPT
3. EXECUTION OF
(4)Changing of the operation sequence and correction
After compelting to editing of the operation sequence, when
performing correcting operations by selecting Menu 4,
“DEFINITION OF MACHINING” and “2. CORRECTION” due to
addition of new operation sequence or partial correction of data of the
operation sequence which is already defined, the editing results of the
operation sequence performed up to this point are all reset to the state
When both turrets are moved because of the state of simultaneous
operation, select the soft key, “S CODE SELECT” and indicate
whether which turret’s S Code has priority. Concerning the indication
on the display, when drilling or center drilling, the spindle speed, “N”
is displayed and cutting speed, “V” is indicated for other cutting. The
spindle speed, “N” and cutting speed, “V” can be input up to 5 digits.
(6)M Code for waiting
M code for waiting is output according to the following standard
(a) When the current operation and the next operation are done with
the same turret, M Code for waiting is not output.
(b)When the current operation and the next operation are done with
the different turrets, the same M Code for waiting is output at the
end of the current operation sequence and the head part (next to the
T Code command for tool exchange) for the next operation.
(c) In simultaneous operation of both heads, a waiting M code is
output at the head of both processes and at the block immediately
before the T code cancel of one process near the end of a program.
M105; Waiting M code
N***G50X– – –Z– – –;
G00 T0303; T code selection
G96 S– –M03;
X– – – Z– – –; Approach
G00 X– – –; Return relief
X– – – Z– – –;
; Waiting M code
Whether a waiting M code is output before T code cancellation or
not is switched by system parameter (No.704 bit 0).
(d)Output at the operation ending part for each turret (after returning
to the machine zero position.)
The initial value of M Code for waiting can be set in 730 of a system
In the NC program shown in Fig. below, M code for waiting are
output as follows: (When the value of system parameter 730 is