HEIDENHAIN iTNC 530 (340 49x-04) Touch Probe Cycles - Manual (Page 155)

HEIDENHAIN iTNC 530 155
3.4 Special Cy
cles
 Type of measurement: 0=calibr., 1=measure? :
Specify whether you want to calibrate or make a
verification measurement:
0: Calibrate
1: Measure
 Probing directions: Definition of probing direction(s)
in the working plane:
0: Measuring only in the positive direction of the
reference axis
1: Measuring only in the positive direction of the
minor axis
2: Measuring only in the negative direction of the
reference axis
3: Measuring only in the negative direction of the
minor axis
4: Measuring in the positive directions of the
reference axis and the minor axis
5: Measuring in the positive direction of the reference
axis and in the negative direction of the minor axis
6: Measuring in the negative direction of the
reference axis and in the positive direction of the
minor axis
7: Measuring in the negative directions of the
reference axis and the minor axis
 Setup clearance (incremental): Additional distance
between measuring point and probe contact. Q320 is
added to MP6540.
 Clearance height (absolute): Coordinate in the touch
probe axis at which no collision between tool and
workpiece (fixtures) can occur (referenced to the
active datum).
Before programming, note the following
Before you perform a measurement, you must have made
at least one calibration, otherwise the TNC will output an
error message. If you are working with several traverse
ranges, you have to make a calibration for each of them.
Each time you run cycle 440, the TNC resets the result
parameters Q185 to Q187.
If you want to set a limit for the axis shift in the machine
axes, enter the desired limits in the tool table TOOL.T
under LTOL for the spindle axis and under RTOL for the
working plane. If the limits are exceeded, the TNC outputs
a corresponding error message after a control
measurement.
After the cycle is completed, the TNC restores the spindle
settings that were active before the cycle (M3/M4).
Example: NC blocks
5 TCH PROBE 440 MEASURE AXIS SHIFT
Q363=1 ;DIRECTION
Q364=0 ;PROBING DIRECTIONS
Q320=2 ;SET-UP CLEARANCE
Q260=+50 ;CLEARANCE HEIGHT
The TNC calculates incorrect values if the probing
direction(s) for calibrating and measuring do not
correspond.