Heidenhain iTNC 530 (340 420) Manuel d'utilisateur Page 489

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HEIDENHAIN iTNC 530 461
12.9 Position Display Types
12.9 Position Display Types
Function
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:
n Starting position
n Target position of the tool
n Workpiece datum
n Machine datum
The TNC position displays can show the following coordinates:
With the MOD function Position display 1, you can select the position
display in the status display.
With Position display 2, you can select the position display in the
additional status display.
Function Display
Nominal position: the value presently
commanded by the TNC
NOML.
Actual position; current tool position ACTL.
Reference position; the actual position relative to
the machine datum
REF
Distance remaining to the programmed position;
difference between actual and target positions
DIST.
Servo lag: difference between nominal and actual
positions (following error)
LAG
Deflection of the measuring touch probe DEFL.
Traverses that were carried out with handwheel
superpositioning (M118)
(only Position display 2)
M118
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