HEIDENHAIN TNC 620 User Manual

Programming Q Parameters | Preassigned Q parameters
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HEIDENHAIN | TNC 620 | Conversational Programming User's Manual | 10/2017
Tool length: Q114
The current value for the tool length is assigned to Q114.
The Control remembers the current tool length even if
the power is interrupted.
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 refer to
the preset that is active in the Manual operation mode.
The length of the stylus and the radius of the ball tip are not
compensated in these coordinates.
Coordinate axis Parameter value
X axis Q115
Y axis Q116
Z axis Q117
4th axis
Machine-dependent
Q118
5th axis
Machine-dependent
Q119
Deviation between actual value and nominal value
during automatic tool measurement with, for
example, the TT 160
Deviation of actual from nominal value Parameter value
Tool length Q115
Tool radius Q116
Tilting the working plane with spatial (workpiece)
angles instead of spindle head angles: Coordinates for
rotary axes calculated by the control.
Coordinates Parameter value
A axis Q120
B axis Q121
C axis Q122

HEIDENHAIN TNC 620 Specifications

General

Power Supply	24 V DC
Control Type	CNC
Axes	Up to 5 axes
Display	15" TFT color flat-panel display
Interfaces	Ethernet, USB
Data Transfer	Ethernet, USB
Hard Drive	SSD
Storage	SSD