[Boart]

We have a twin turret Okuma LR15. Our current program is using both turrets. What I would like to is, at the end of the program loop back to the beginning and have it start automatically. I have tried "GOTO N10" at the end, but I am getting an alarm 423-2. I believe the twin turret is causing this alarm. Thank you.

[underthetire]

You would need to loop back on both turret programs, with a matching Pcode.

[Thawk53]

You need to reset the P code counter. See example.


G13
NSTRA G50 S2000 P-1
CUTTING PROGRAM
M100
GOTO NSTRTA
G14
NSTRB G50 S2000 P-1
CUTTING PROGRAM
M100
GOTO NSTRB
NEND M30 OR M2

[m@chinist]

different way to loop the program for twin turret with p-codes - do a simple machining program to execute one workpiece only. then make a schedule program. eg.

abc.sdf
pselect abc.min,,,Q500
end

machining program - abc.min - is a normal program
schedule program - abc.sdf - is selecting your program abc and executes it for 500 times. you can try max 9999 repetitions. good enough for a bar work.

[Algirdas]

nice example. whent the part, starting with line #6:
G14
NSTRB G50 S2000 P-1
CUTTING PROGRAM
M100
GOTO NSTRB
will be executed?
Will the program cycle from GOTO NSTRTA to NSTRTA with no exit from cycle?

[Thawk53]

nice example. whent the part, starting with line #6:
G14
NSTRB G50 S2000 P-1
CUTTING PROGRAM
M100
GOTO NSTRB
will be executed?
Will the program cycle from GOTO NSTRTA to NSTRTA with no exit from cycle?

This is just a simple warm-up program. The M100's will hold the turret (lets say A-Turret), until the other turret (B-Turret) reaches the corresponding M100. Both turrets will then proceed to the GOTO statement at the same time
and loop the program to the beginning.
We just use Block Delete in this case to stop looping the program.

G13
(WARM UP)
(TURN BLOCK DELETE OFF TO RUN)
(TURN BLOCK DELETE ON TO STOP)
NSTRA G50 S1000 P-1
G0G94G97X20.Z20.S750T0303M42M3P10
G1X8.5Z6.1F40.0
Z3.8P11
X8.0
Z6.1
M100
G0X20.Z20.P20
M1P25
G13
N20G0G94G97X20.Z20.S750T0505M42M3P30
G1X8.5Z6.1F40.0
Z3.8P31
X8.0
Z6.1
M100
G0X20.Z20.P40
M1P45
M100
/ GOTO NSTRA
G14
NSTRB G50 S1000 P-1
G0G94G97X20.Z20.S750T0201M42M3P10
G1X6.0Z3.8F40.0
Z5.5P11
X6.5
M100
G0X20.Z20.P20
M1P25
G14
N40G0G94G97X20.Z20.S750T0707M42M3P30
G1X6.0Z3.8F40.0
Z6.5P31
X6.5
M100
G0X20.Z20.P40
M1P45
M100
/ GOTO NSTRB
NEND M30