CNC Machinist Calculator UltraM90 Default servo gain
Fadal M-code · Mill
Returns the servo gain to the default set by the SV command.
Verify on your machine. This entry could not be fully checked against the maker manual. Check your machine manual before you run it.
Format
M90
How it works
Modal, gain group.
Example program
N2 M92 (INTERMEDIATE GAIN)
N3 G1 X3. F50.
N4 M90 (DEFAULT GAIN)
N3 G1 X3. F50.
N4 M90 (DEFAULT GAIN)
Example is in inch. Check offsets and clearances first.
Watch out for
- Gain codes change how stiff the axes feel. Leave them at default unless you know why.
Related codes
M90 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Haas NGC | Fixture clamp input on |
| Doosan (Fanuc) | C1-axis unclamp |
| DMG Mori MAPPS (Fanuc) | Tool-spindle or turning spindle simultaneous operation mode ON |
| Hurco WinMax (NC) | Z retract on power loss, enable |
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