HEIDENHAIN TNC 620 User Manual page 507

Touch Probe Cycles: Automatic Kinematics Measurement | MEASURE KINEMATICS (Cycle 451, DIN/ISO:
G451, option)
Q422 No. of meas. points in C (0...12)?: Number
of probe measurements with which the TNC is
to measure the C axis. Input range 0 to 12 If the
input value = 0, the TNC does not measure the
respective axis
Q423 Number of probes? Define the number of
probe measurements with which the TNC is to
measure the calibration sphere in the plane. Input
range: 3 bis 8. Less measuring points increase
speed and more measuring points increase
measurement precision.
Q431 Preset (0/1/2/3)? Define whether the TNC
automatically sets the active preset into the center
of the sphere:
0: Do not set the preset automatically into the
center of the sphere: Preset manually before
cycle start1: Automatically set the preset to the
center of the sphere before measurement (the
active preset is overwritten): Manually pre-position
the touch probe before the cycle start via the
calibration sphere
2: Automatically preset into the center of the
sphere after measurement (the active preset is
overwritten): Preset manually before cycle start
3: Preset before and after measurement into
the center of the sphere (the active preset
is overwritten): Pre-position the touch probe
manually before cycle start via the calibration
sphere
Q432 Angular range of backlash comp.?: Here
you define the angle value to be used as traverse
for the measurement of the rotary axis backlash.
The traversing angle must be significantly larger
than the actual backlash of the rotary axes. If
input value = 0, the TNC does not measure the
backlash. Input range -3.0000 to +3.0000
If you have activated "Preset" before the calibration (Q431
= 1/3), then move the touch probe by the safety clearance
(Q320 + SET_UP) to a position approximately above the
center of the calibration sphere before the start of the
cycle.
HEIDENHAIN | TNC 620 | User's manual for cycle programming | 10/2017
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