HEIDENHAIN TNC 640 User Manual

Programming Q Parameters | Principle and overview of functions
10
HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017
379
Calling Q parameter functions
When you are writing a part program, press the Q key (in the
numeric keypad for numerical input and axis selection, below the
+/- key). The control then displays the following soft keys:
Soft key Function group Page
Basic arithmetic (assign, add,
subtract, multiply, divide,
square root)
381
Trigonometric functions 384
Function for calculating
circles
385
If/then conditions, jumps 386
Other functions 390
Entering formulas directly 450
Function for machining
complex contours
See Cycle Program-
ming User's Manual
If you define or assign a Q parameter, then the control
shows the Q, QL and QR soft keys. You can use these
soft keys to select the desired parameter type. Then you
define the parameter number.
If you have a USB keyboard connected, you can press
the Q key to open the dialog for entering a formula.

HEIDENHAIN TNC 640 Specifications

General

Control Type	CNC
Axes	Up to 18 axes
Interfaces	Ethernet, USB, RS-232
Spindle Control	Yes
PLC	Integrated
Storage	SSD
Programming Languages	DIN/ISO
Safety Features	safety functions according to EN ISO 13849-1
Dimensions	Varies based on configuration
Weight	Varies based on configuration
Operating System	Windows