CHANGE TOOL NUMBER (T)

CHANGE TOOL NUMBER (T)

It’s your responsibility to make sure that the carriage is in a safe place for changing tools (for example, by using G30). This allows optimization of motion which can save time. A pause for manual intervention can always be provided by an M00 or M01 before the tool change.

TROUBLESHOOTING

It’s an error if:

  • A negative T number is used
  • A T number larger than 54 is used

SPINDLE SPEED (S)

SPINDLE SPEED (S)

To set the speed in revolutions per minute (rpm) of the spindle, program: S~

The spindle turns at the commanded speed when it has been programmed to start turning. It’s okay to program an S word whether the spindle is turning or not. If the speed override switch is enabled and not set at 100 percent, the speed is different from what is programmed. It’s okay to program S0, but the spindle does turn if that is done.

TROUBLESHOOTING

It’s an error if:

  • The S number is negative

FEED RATE (F)

FEED RATE (F)

To set the feed rate, program: F~

Depending on the setting of the feed mode toggle, the rate may be in units-per-minute or units-per-rev of the spindle. The units are those defined by the G20/G21 mode. The feed rate may sometimes be overridden.