HEIDENHAIN TNC 426, TNC 430 387
10.10 Preassigned Q Parameters
Coolant on/off: Q111
Overlap factor: Q112
The overlap factor for pocket milling (MP7430) is assigned to Q112.
Unit of measurement for dimensions in the
program: Q113
The value of parameter Q113 specifies whether the highest-level NC
program (for nesting with PGM CALL) is programmed in millimeters or
inches.
Tool length: Q114
The current value for the tool length is assigned to Q114.
Coordinates after probing during program run
The parameters Q115 to Q119 contain the coordinates of the spindle
position at the moment of contact during programmed measurement
with the 3-D touch probe. The coordinates are referenced to the
datum that is currently active in the Manual operating mode.
The length and radius of the probe tip are not compensated in these
coordinates.
M04: Spindle ON, counterclockwise Q110 = 1
M05 after M03 Q110 = 2
M05 after M04 Q110 = 3
M Function Parameter value
M Function Parameter value
M08: Coolant ON Q111 = 1
M09: Coolant OFF Q111 = 0
Dimensions of the main program Parameter value
Metric system (mm) Q113 = 0
Inch system (inches) Q113 = 1
Coordinate axis Parameter value
X axis Q115
Y axis Q116
Z axis Q117