HEIDENHAIN TNC 640, User Manual, Page: 521 / 948

Special Functions | Global Program Settings (option 44)
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HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017
521
Activating and deactivating a function
The
Global Program Settings
function and its settings remain
active until they are reset. This also applies after the control has
been restarted.
As soon as any settings possibility of the
Global Program Settings
function is activated, the control shows the following symbol in the
position display:
Before machining you can use the form to activate or deactivate
any of the settings possibilities of the
Global Program Settings
function that have been enabled by the machine tool builder.
If you have interrupted program run then you can also use the form
to activate or deactivate
Handwheel superimp.:
and the
Feed rate
factor
.
Further information: "Interrupting, stopping or aborting
machining", page 825
Once you restart the NC program, the control immediately applies
the values you have defined. If necessary, the control approaches
the new position via the menu for returning.
Further information: "Returning to the contour", page 839
Refer to your machine manual.
The machine tool builder can provide functions with
which you can set or reset
Handwheel superimp.:
and the
Feed rate factor
under program control, e.g.
M functions or manufacturer cycles.
You can use Q-parameter functions to query the status
of the
Global Program Settings
function.
Further information: "FN 18: SYSREAD – Reading
system data", page 402
Fillable form
Active settings possibilities of the
Global Program Settings
function are highlighted white in the form. Inactive settings
possibilities remain dimmed.
If more than one settings possibilities for coordinate transformation
(left half of the form) are active, the sequence of effect is shown
using yellow numbers and arrows.
The information area (top of left half of the form) and the
settings possibilities in the right half of the form are not
considered for the sequence of effect, since they do not
result in any coordinate transformations.
As soon as any settings possibility of the
Global Program Settings
function is activated, the control displays a warning message if an
NC program is selected in the file management.
Then you can simply acknowledge the message with
Ok
or call the
form directly with
CHANGE DATA
.