SPINDLE CONTROL (M03, M04, AND M05)

SPINDLE CONTROL (M03, M04, AND M05)

To start the spindle turning clockwise (forward) at the currently programmed speed, program: M03

To start the spindle turning counterclockwise at the currently programmed speed, program: M04

The speed is programmed by the S word.

To stop the spindle from turning, program: M05

It’s okay to use M03 or M04 if the spindle speed is set to 0; if this is done, the spindle won’t start turning. If later the spindle speed is set above 0, the spindle starts turning. It is permitted to use M03 or M04 when the spindle is already turning, or to use M05 when the spindle is already stopped.

SPINDLE CONTROL (M03, M04, AND M05)