HEIDENHAIN TNC 640 (34059x-02) ISO programming - Manual (Page 348)

Programming: Special functions
11.3 Adaptive Feed Control Software Option (AFC)
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TNC 640 | User's Manual for DIN/ISO Programming | 5/2013
Recording a teach-in cut
With a teach-in cut the TNC firstly copies the basic settings defined
in the AFC.TAB table into the file
.H.AFC.DEP for each
machining step. is the name of the NC program for which
you have recorded the teach-in cut. In addition, the TNC measures
the maximum spindle power consumed during the teach-in cut and
saves this value in the table.
Each line in the
.H.AFC.DEP file stands for a machining
step that you start with M3 or M4 and end with M5. You can edit
all data of the .H.AFC.DEP file if you wish to optimize
them. If you have optimized the values in comparison with the
values in the AFC.TAB table, the TNC places an asterisk
* in
front of the control settings in the AFC column. Besides the data
from the AFC.TAB table See "Defining the AFC basic settings",
page 345, the TNC saves the following additional information in the
.H.AFC.DEP file:
Column Function
NR Number of the machining step
TOOL Number or name of the tool with which the
machining step was made (not editable)
IDX Index of the tool with which the machining step
was made (not editable)
N
Difference for tool call:
0: Tool was called by its tool number
1: Tool was called by its tool name
PREF Reference load of the spindle. The TNC measures
the value in percent with respect to the rated
power of the spindle
ST
Status of the machining step:
L: In the next program run, a teach-in cut is
recorded for this machining step. The TNC
overwrites any existing values in this line
C: The teach-in cut was successfully completed.
The next program run can be conducted with
automatic feed control
AFC Name of the control setting