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HEIDENHAIN TNC 407 (280 580) ISO Programming User Manual

Page 317

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11-20

11

Tables, Overviews and Diagrams

TNC 426/TNC 425/TNC 415 B/TNC 407

11.3 Preassigned Q Parameters

Overlap factor: Q112

The overlap factor for pocket milling (MP 7430) is assigned to Q112.

Unit of measurement for dimensions in the part program: Q113

The value of parameter Q113 specifies whether the highest-level NC
program (for nesting with %) is programmed in millimeters or inches.

Dimensions of the main program

Parameter value

Metric system (mm)

Q113 =

0

Inch system

Q113 =

1

Tool length: Q114

The current value for the tool length is assigned to Q114.

Coordinates after probing during program run

Q115 to Q119 contain the coordinates of the spindle position at the
moment of contact during programmed measurement with the 3D touch
probe. The length and radius of the probe tip are not compensated in
these coordinates.

Coordinate axis

Parameter

X axis

Q115

Y axis

Q116

Z axis

Q117

IVth axis

Q118

Vth axis

Q119

Deviation between actual value and nominal value during automatic tool measurement
with the TT 110 touch probe (

conversational programming only)

Actual-nominal deviation

Parameter

Tool length

Q115

Tool radius

Q116

Tilting the working plane with mathematical angles: Rotary axis coordinates calculated by the TNC

Coordinates

Parameter

A axis

Q120

B axis

Q121

C axis

Q122

425

415

407