HEIDENHAIN NC 124 - Manual (Page 19)

2 Working with the TNC 124 – First Steps
TNC 124 19
Symbols on the TNC screen
The TNC continuously informs you of the current operating status.
The symbols are displayed on the screen
• next to the designations of the coordinate axes or
• in the status line at the bottom of the screen.
Symbol Function/Meaning
T ... Tool, for example T 1
S ... *) Spindle speed, e.g. S 1000 [rpm]
F ... *) Feed rate, e.g. F 200 [mm/min]
M ... Miscellaneous function, e.g. M 3
Datum, e.g.: 1
ACTL.
TNC displays actual values
NOML.
TNC displays nominal values
REF
TNC displays the reference position
LAG
TNC displays the servo lag
Control active
Spindle brake active
Spindle brake inactive
Axis can be moved with the
electronic handwheel
* ) A highlighted F or S symbol means that the feed rate or
spindle has not been enabled by the PLC.
® ®
® ®
...
*
Fig. 2.1: The symbol for soft-key rows at
the bottom right of the screen.
Here, the first row is being dis-
played.
The TNC displays the soft keys with the main functions
of an operating mode whenever you press the key for
that mode.
Selecting soft-key functions
The soft-key functions are grouped into one or more rows. The TNC
indicates the number of rows by a symbol at the bottom right of the
screen.
If no symbol is visible, that means that all pertinent functions are al-
ready shown. The highlighted rectangle in the symbol indicates the
current row.
Overview of functions
Function Key
Page through the soft-key rows: forwards
Page through the soft-key rows: backwards
Go back one soft-key level