Position Display Types - HEIDENHAIN TNC 620 User Manual

16
MOD functions

16.2 Position Display Types

16.2 Position Display Types
Application
In the Manual Operation mode and in the Program Run modes of
operation, you can select the type of coordinates to be displayed.
The figure at right shows the different tool positions:
Starting position
Target position of the tool
Workpiece datum
Machine datum
The TNC position displays can show the following coordinates:
Function
Nominal position: the value presently
commanded by the TNC
Actual position; current tool position
Reference position; the actual position relative
to the machine datum
Reference position; the nominal position
relative to the machine datum
Servo lag; difference between nominal and
actual positions (following error)
Distance remaining to the programmed
position; difference between actual and target
positions
With the MOD function Position display 1, you can select the
position display in the status display.
With the MOD function Position display 2, you can select the
position display in the status display.
494
Display
NOML.
ACTL.
REF ACTL
REF NOML
LAG
DIST
HEIDENHAIN Conversational Programming | 5/2013
TNC 620 | User's Manual