4.9.1 M03/M04/M05: Spindle On Clockwise/Spindle On Counterclockwise/Spindle Stop
Format:
M03 S_ : Spindle rotates clockwise
M04 S_ : Spindle rotates counter clockwise
M05 : Spindle stop
When M03/M04/M05 and the axial feed command are on the same line, the machine factory usually designs the M03/M04 and axial feed simultaneously with the PLC planning and M05 is executed after the axial feed is completed. M03/M04/M05 should be separated by one line as much as possible to avoid that the cutting speed has not been reached yet, or that the spindle has stopped rotating while cutting.