HEIDENHAIN iTNC 530 (60642x-04) - Manual (Page 449)

HEIDENHAIN iTNC 530 449
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option (AFC)
Recording a teach-in cut
The TNC provides several cycles that enable you start and stop a
teach-in step:
 FUNCTION AFC CUT BEGIN TIME1 DIST2 LOAD3
: The TNC starts a
sequence of cuts with active AFC. The switch from the teach-in cut
to closed-loop mode begins as soon as the reference load was
determined in the teach-in phase, or once one of the conditions
TIME
, DIST, or LOAD is fulfilled. With TIME you define the maximum
duration in seconds of the teach-in phase. DIST defines the
maximum distance for the teach-in cut. With LOAD you can set a
reference load directly. The entries in TIME, DIST, and LOAD are
modally effective. You can reset the respective function by
programming it again with the value 0.
 FUNCTION AFC CUT END : The AFC CUT END function deactivates AFC
control
 FUNCTION AFC CTRL : The AFC CTRL function activates closed-loop
mode starting with the place at which this block is run (even if the
teach-in phase has not yet been completed)
To program the AFC functions for starting and ending the teach in cut,
proceed as follows:
 In the PROGRAMMING mode, press the SPEC FCT key
 Press the PROGRAM FUNCTIONS soft key
 Select the FUNCTION AFC soft key
 Select the function
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.