CNC Machinist Calculator UltraHome › M-codes › Swiss (Citizen Star) › M04
M04 Main spindle reverse
Swiss (Citizen Star) M-code · Lathe
Starts the main spindle in reverse.
Verify on your machine. This entry could not be fully checked against the maker manual. Check your machine manual before you run it.
Format
M04 S | M04 S1=
Addresses
| Address | What it does |
|---|---|
S1= | Citizen main spindle speed |
How it works
Modal, spindle group.
Example program
G97 S1=2000 M4 (MAIN SPINDLE REVERSE)
G00 X.55 Z-.02 T0200 (LEFT HAND TOOL)
G01 Z.5 F.002
G00 X.55 Z-.02 T0200 (LEFT HAND TOOL)
G01 Z.5 F.002
Example is in inch. Check offsets and clearances first.
Watch out for
- Reverse runs left hand tools. Check the insert hand before using it.
Machine builders set many M codes, and they change by model and options. Check the M code list for your machine.
Related codes
M04 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Spindle on, reverse |
| Haas NGC | Spindle on counterclockwise |
| Doosan (Fanuc) | Left spindle reverse rotation |
| DMG Mori MAPPS (Fanuc) | Spindle start(reverse) |
| Mazak (EIA) | Spindle reverse rotation |
| Okuma OSP | Spindle counter clockwise (Lathes & Mills) |
| Mitsubishi M70 M80 | Spindle on counterclockwise |
| Brother Speedio | Spindle on counterclockwise |
| Siemens 840D 828D | Spindle on counterclockwise |
| Heidenhain TNC (ISO) | Spindle on counterclockwise |
| Fagor 8055 8065 | Spindle counterclockwise |
| LinuxCNC Tormach | Spindle counterclockwise |
| Mach3 Mach4 | Spindle on counterclockwise |
| Centroid CNC12 Acorn | Spindle on counterclockwise |
| Hurco WinMax (NC) | Spindle on counterclockwise |
| Fadal | Spindle on counterclockwise |
Every M-code for Swiss (Citizen Star) 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 M04 in the app All Swiss M-codes