HEIDENHAIN iTNC 530 (60642x-04) ISO programming - Manual (Page 404)

404 Programming: Special Functions
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Feed
Contr
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(AFC)
Log file
The TNC stores various pieces of information for each machining step
of a teach-in cut in the .H.AFC2.DEP file. is the name of
the NC program for which you have recorded the teach-in cut. During
control, the TNC updates the data and makes various evaluations. The
following data are to be saved in this table:
Column Function
NR Number of the machining step
TOOL Number or name of the tool with which the machining
step was made
IDX Index of the tool with which the machining step was
made
SNOM Nominal spindle speed [rpm]
SDIF Maximum difference of the spindle speed in % of the
nominal speed
LTIME Machining time for the teach-in cut
CTIME Machining time for the control cut
TDIFF Time difference in % between the machining time
during teach-in and control
PMAX Maximum recorded spindle power during machining.
The TNC shows the value as a percent of the spindle's
rated power.
PREF Reference load of the spindle. The TNC shows the
value as a percent of the spindle's rated power.
FMIN Smallest occurring feed factor. The TNC shows the
value as a percentage of the programmed feed rate
OVLD Reaction by the TNC to overload:
 M : A macro defined by the machine tool builder has
been run
 S : Immediate NC stop was conducted
 F : NC stop was conducted after the tool was
retracted
 E : An error message was displayed
 - : There was no overload reaction
BLOCK Block number at which the machining step begins