Comprehensive Guide to Haas CNC Lathe M-Codes

HAAS CNC Lathe Miscellaneous Functions

Haas CNC Lathe M-Codes

M-Code	Description
M00	Program Stop – Modal
M01	Optional Program Stop – Modal
M02	Program End – Modal
M03	Spindle on Forward (S) – Modal
M04	Spindle on Reverse (S) – Modal
M05	Spindle Stop – Modal
M08	Coolant On – Modal
M09	Coolant Off – Modal
M10	Chuck Clamp – Modal
M11	Chuck Unclamp – Modal
M12	Auto Air Jet On (P) – Modal/Optional
M13	Auto Air Jet Off – Modal/Optional
M14	Main Spindle Clamp – Modal/Optional
M15	Main Spindle Unclamp – Modal/Optional
M17	Rotate Turret Forward (T) – Modal
M18	Rotate turret Reverse (T) – Modal
M19	Orient Spindle – Modal/Optional Example
M21	Tailstock Advance – Modal/Optional
M22	Trailstock Retract – Modal/Optional
M23	Angle Out of Thread On – Modal
M24	Angle of Thread Off – Modal
M25-M28	Optional User M Code Interface with M-Fin Signal – Modal
M30	Program End and Reset – Modal
M31	Chip Auger Forward – Modal
M33	Chip Auger Stop – Modal
M36	Parts Catcher On – Modal/Optional
M37	Parts Catcher Off – Modal/Optional
M38	Specify Spindle Variation On – Modal
M39	Specify Spindle Variation Off – Modal
M41	Spindle Low Gear Override – Modal
M42	Spindle High Gear Override – Modal
M43	Turret Unlock – Modal
M44	Turret Lock – Modal
M51-M58	Optional User M Code Set – Modal
M59	Output Relay Set (N) – Modal
M61-M68	Optional User M Code Clear – Modal
M69	Output Relay Clear (N) – Modal
M76	Program Displays Inactive – Modal
M77	Program Displays Active – Modal
M78	Alarm in Skip Signal Found – Modal
M79	Alarm if Skip signal Not Found – Modal
M85	Automatic Door Open – Modal/Optional
M86	Automatic Door Close – Modal/Optional
M88	High Pressure Coolant ON – Modal/Optional
M89	High Pressure Coolant off – Modal/Optional
M93	Axis Position Capture Start – Modal/Optional
M94	Axis Position Capture Stop – Modal/Optional
M95	Sleep Mode – Modal
M96	Jump if no Signal – Modal
M97	Local Sub-Routine Call – Modal
M98	Sub-Program Call – Modal
M99	Sub-Program / Routine Return or Loop – Modal
M109	Inactive User Input (P) – Modal/Optional
M110	Tailstock Chuck Clamp – Modal/Optional
M111	Tailstock Chuck Unclamp – Modal/Optional
M119	Sub-Spindle Orient – Modal/Optional**
M121-M128	Optional User M Code Interface with M-Fin Signal – Modal
M133	Live tool Drive Forward (P) – Modal/Optional Example
M134	Live Tool Drive Reverse (P) – Modal/Optional
M135	Live Tool Drive Stop – Modal/Optional
M143	Sub-Spindle Forward (P) – Modal/Optional
M144	Sub-Spindle Reverse (P) – Modal/Optional
M145	Sub-Spindle Stop – Modal/Optional
M154	C Axis Engage – Modal/Optional Example
M155	C Axis Disengage – Modal/Optional
M164	Rotate APL Grippers To “n” Position – Modal/Optional
M165	Open APL Gripper 1 (Raw Material) – Modal/Optional
M166	Close APL Gripper 1 (Raw Material) – Modal/Optional
M167	Open APL Gripper 2 Finished Material) – Modal/Optional
M168	Close APL Gripper 2 (Finished Material) – Modal/Optional

Comprehensive Guide to Haas CNC Lathe G‑Codes: Essential Commands & Functions Comprehensive Guide to CNC G‑Codes for Fanuc Controls

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