HEIDENHAIN TNC 640 User Manual page 525

Special Functions | Adaptive Feed Control AFC (option 45)
Operating notes:
If adaptive feed control is active in Control mode, the
control executes a shutdown response independent
of the programmed overload reaction.
If, with the reference spindle load, the minimum
feed factor is fallen below
If the programmed feed rate is fallen below by
30%
If you do not explicitly deactivate the adaptive feed
control using the soft key, this function remains
active. The control remembers the setting of the soft
key even if the power is interrupted.
If the adaptive feed control is active in Control mode,
the control internally sets the spindle override to
100 %. Then you can no longer change the spindle
speed.
If the adaptive feed control is active in Control mode,
the control takes over the value from the feed rate
override function.
Increasing the feed rate override has no influence
on the control.
If you decrease the feed rate override by more
than 10 %
the control will switch the adaptive feed control
off. In this case, the control displays a window to
inform you.
In NC blocks containing G00, the adaptive feed
control is not
Mid-program startup is allowed during active feed
control. The control takes the cutting number of the
startup block in account.
The control shows various pieces of information in the additional
status display when adaptive feed control is on.
Further information: "Additional status displays", page 96
In addition, the control shows the
display.
HEIDENHAIN | TNC 640 | ISO Programming User's Manual | 10/2017
with respect to the maximum setting,
active.
or icon in the position
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