Tormach PCNC 440 - 7.5.5 Override Control - M48, M49; 7.5.6 Feed Override Control - M50; 7.5.7 Spindle Speed Override Control - M51; 7.5.8 Set Current Tool Number - M61

Chapter 7
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UM10372_PCNC440_Manual_0221A
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It is always OK to use any of these commands, regardless of what coolant is on or o.
7.5.5 Override Control – M48, M49
To enable the speed and feed override, program: M48
To disable both overrides, program: M49
It is OK to enable or disable the switches when they are already enabled or disabled.
7.5.6 Feed Override Control – M50
To enable the feed rate override control, program: M50 P1
The P1 is oponal.
To disable the feed rate control, program: M50 P0
When feed rate override control is disabled, the feed rate override slider has no inuence, and all
moon is executed at programmed feed rate (unless there is an adapve feed rate override acve).
7.5.7 Spindle Speed Override Control – M51
To enable the spindle speed override control, program: M51 P1
The P1 is oponal.
To disable the spindle speed override control, program: M51 P0
When spindle speed override control is disabled, the spindle speed override slider has no inuence,
and the spindle speed is equal to the value of the S-word (see Spindle Speed later in this chapter).
7.5.8 Set Current Tool Number – M61
To change the current tool number while in MDI or manual mode, program: M61 Q~
Word Definition
Q~ Tool number
One use is when you power on the system with a tool selected but the tool turret is set for a
dierent tool to that indicated. You can set that tool number without doing a tool change operaon.
It is an error if: Q~ is not 0 or greater