HEIDENHAIN iTNC 530 (34049x-08) ISO programming - Manual (Page 390)

390 Programming: Special functions
1
1
.6 A
d
aptiv
e
F
eed Contr
o
l sof
tw
ar
e
option (AFC)
Activating/deactivating AFC
 Select the Program Run, Full Sequence operating
mode
 Shift the soft-key row
 To activate the adaptive feed control: Set the soft key
to ON, and the TNC displays the AFC symbol in the
position display (see "Status displays" on page 87)
 To deactivate the adaptive feed control: Set the soft
key to OFF
The adaptive feed control remains active until you
deactivate it by soft key. The TNC remembers the setting
of the soft key even if the power is interrupted.
If the adaptive feed control is active in the control mode,
the TNC internally sets the spindle override to 100 %.
Then you can no longer change the spindle speed.
If the adaptive feed control is active in the control mode,
the TNC takes over the feed rate override function:
 If you increase the feed rate override, it has no influence
on the control.
 If you decrease the feed rate override by more than
10 %
with respect to the maximum setting, the TNC
switches the adaptive feed control off. In this case the
TNC displays a window to inform you.
In NC blocks containing FMAX, the adaptive feed control is
not active
.
Mid-program startup is allowed during active feed control
and the TNC takes the cut number of the startup point into
account.
In the additional status display, the TNC displays various
information when the adaptive feed control is active (see
"Adaptive Feed Control (AFC tab, software option)" on
page 96). In addition, the TNC shows the symbol in the
position display.