HEIDENHAIN TNC 640 (34059x-05) - Manual (Page 409)

Adaptive feed control AFC (Option #45) 11.3
11
TNC 640 | User's Manual
HEIDENHAIN Conversational Programming | 1/2015
409
Log file
The TNC stores various pieces of information for each machining
step of a teach-in cut in the
<name>.H.AFC2.DEP file. <name>
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F: NC stop was conducted after the tool was
retracted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