Edge Distance - Set Edge (Cycle978) - Siemens SINUMERIK 840D sl Programming Manual

Measuring variants
2.3 Measure workpiece (milling)
2.3.5

Edge distance - set edge (CYCLE978)

Function
This measuring variant determines the position of a paraxial edge in the workpiece
coordinate system through 1-point measurement.
When using probes with side boom (L probe, type 713), towing measurement is possible in
the positive direction of the tool axis.
A special measuring version permits a measurement to be performed with the axes of the
plane as differential measurement. The special procedure for this measurement permits the
use of an uncalibrated multidirectional probe. Probe types 712, 713 and 714 are not suitable
for this purpose. The differential measurement must not be used for measurements
demanding a high degree of accuracy!
The measurement result (measurement difference) can be used as follows:
● Correction of a work offset
● Offset of a tool
● Measurement without offset
Measuring principle
The measuring cycle determines the actual value of a measuring point, taking into account
the calibration values, at one edge of the workpiece, referred to its zero point.
The difference between the actual value (measured value) and a specified setpoint in the
parameterized measuring axis is calculated.
Measure: Edge (CYCLE978)
measuring direction: -X
96
Measure: Edge (CYCLE978)
measuring direction: +Z (towing measurement)
Programming Manual, 02/2011, 6FC5398-4BP40-0BA0
Measuring cycles