HEIDENHAIN iTNC 530 (34049x-08) ISO programming - Manual (Page 387)

HEIDENHAIN iTNC 530 387
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option (AFC)
Recording a teach-in cut
In a teach-in cut, first the TNC copies for each machining step the
basic settings defined in the AFC.TAB table into the .H.AFC.DEP
file. 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" on page 385), 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