Cycle Parameters - HEIDENHAIN TNC 640 User Manual

Touch Probe Cycles: Special Functions | FAST PROBING (Cycle 441, DIN/ISO G441)

Cycle parameters

Q396 Positioning feed rate?: Define the feed
rate at which the TNC executes positioning
movements of the touch probe. Input range 0 to
99999.9999, alternatively FMAX, FAUTO
Q397 Pre-pos. at machine's rapid?: Define
whether the TNC, when pre-positioning the
touch probe, traverses with the FMAX feed rate
(machine's rapid traverse):
0: Pre-position with feed rate from Q396
1: Pre-position with machine's rapid traverse
FMAXEven if your machine has separate
potentiometers for rapid traverse and feed rate,
you can control the feed rate, also with Q397=1,
only with the potentiometer for feed motions.
The feed rate can also be limited by your machine
tool builder. The absolute maximum feed rate is
defined in the machine parameter maxTouchFeed
(No. 122602).
Q399 Angle tracking (0/1)?: Define whether the
TNC orients the touch probe before each probing
process:
0: No orientation
1: Orient spindle before each probing process
(improves the accuracy)
Q400 Automatic interruption? Define whether
the TNC following a measuring cycle for automatic
workpiece measurement interrupts the program
run and outputs the measuring results to the
screen:
0: Do not interrupt program run even if in the
specific probing cycle the output of measuring
results to the screen is selected
1: Interrupt program run and output measuring
results to the screen. Program run can then be
continued with NC start
HEIDENHAIN | User's manual for cycle programming | 10/2017
NC blocks
5 TCH PROBE 441 FAST PROBING
Q 396=3000;POSITIONING FEED RATE
Q 397=0 ;SELECT FEED RATE
Q 399=1 ;ANGLE TRACKING
Q 400=1 ;INTERRUPTION
17
653