Siemens SINUMERIK 840D sl Programming Manual page 539

Measurement result display
Measurement result displays can be shown automatically during measuring cycle runtime.
Activation of this function depends on the settings in the measuring cycle data.
Measuring a workpiece at an angle
A measurement variant used to measure a drill-hole, shaft, groove, or web at random
angles. The measurement path is traveled at a certain set angle defined in the WCS.
Measuring accuracy
The measurement accuracy that can be obtained is dependent on the following factors:
• Repeat accuracy of the machine
• Repeatability of the probe
• Resolution of the measuring system
The repeat accuracy of the controls for "on-the-fly measurement" is ±1 µm.
Measuring in JOG
It contains the following functions:
• Semi-automatic calculation of tool lengths and storage in tool offset memory
• Semi-automatic calculation and setting of reference points and storage in zero offset
The function is operated with softkeys and input displays.
Measuring tool
To perform tool measurement, the changed tool is moved up to the probe which is either
permanently fixed or swiveled into the working range. The automatically derived tool
geometry is entered in the relevant tool offset data record.
Measuring variant
The measuring variant of each measuring cycle is defined in parameter _MVAR. The
parameter can have certain integer values for each measuring cycle, which are checked for
validity within the cycle.
Measuring velocity
The measuring speed can be freely selected by means of parameter _VMS. The maximum
measuring velocity must be selected to ensure safe deceleration within the measuring probe
deflecting path.
Mono probe
A mono(directional) probe is a probe that can only deflect in one direction. It can only be
used for workpiece measurement on milling machines and machining centers with slight
limitations.
Measuring cycles
Programming Manual, Release 04/2006, 6FC5398-4BP10-0BA0
memory
Glossary
Glossary-3