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M30 End of program, custom / End and restart program
Centroid CNC12 Acorn M-code · Mill, Lathe
On mills: End of program, custom
Intercon posts M30 at the end of every program. On a CNC12 mill M30 has no default action. It can be replaced with a macro to run steps at the end of each job.
Format
Addresses
| Address | What it does |
|---|---|
none | No words |
How it works
One shot.
Example program
M5 M9 ; SPINDLE AND COOLANT OFF
M25 G49 ; Z HOME
M30 ; END
Example is in inch. Check offsets and clearances first.
Watch out for
- Do not count on M30 to stop the spindle or coolant. Put M5 M9 and M25 before it.
- Look for an mfunc30.mac file in the cncm folder to see what your M30 does.
On lathes: End and restart program
Goes back to the first line and waits for CYCLE START. On a CNC12 lathe it works the same as M2.
Format
Addresses
| Address | What it does |
|---|---|
none | No words |
How it works
One shot.
Example program
M5 M9 ; SPINDLE AND COOLANT OFF
M30 ; END, BACK TO THE TOP
Example is in inch. Check offsets and clearances first.
Watch out for
- Stop the spindle and coolant and move clear before M30.
Machine builders set many M codes, and they change by model and options. Check the M code list for your machine.
Related codes
M30 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | End of program and rewind |
| Haas NGC | Program end and reset |
| Doosan (Fanuc) | Program end & rewind |
| DMG Mori MAPPS (Fanuc) | Program end and rewind |
| Mazak (EIA) | Reset & tape rewind |
| Okuma OSP | End Program (Lathes & Mills) |
| Mitsubishi M70 M80 | End of program and rewind |
| Brother Speedio | Program end and rewind |
| Siemens 840D 828D | End of program |
| Heidenhain TNC (ISO) | End of program, same as M2 |
| Fagor 8055 8065 | End of program and return to start |
| LinuxCNC Tormach | Program end and pallet shuttle |
| Mach3 Mach4 | Program end and rewind |
| Hurco WinMax (NC) | Program end |
| Fadal | End of all subroutines, or end of program |
| Swiss (Citizen Star) | Program end and reset (Star) |
Every M-code for Centroid CNC12 Acorn in your pocket. The app has the full example programs, search by number or shop word, a line decoder and calculators for tapping, threading and drilling.
Open M30 in the app All Centroid CNC12 Acorn M-codes