Circularity Test - Siemens SINUMERIK Series Function Manual

03/2012

2.2.4 Circularity test

Function description
The circularity test produces a polar plot of the circular path and circularity-specific
characteristics:
Characteristic
Circular deviation
Circular hysteresis
The measurement type-relevant parameters are also specified. The goal is to test
the drive dynamics and accuracy of the two axes involved.
Fig. 2-25: Measuring result of a circularity test
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2.2 Variable monitors – time series – measurements and measurement series
Description
The circular deviation is measured on the basis of
ISO 230-4 as difference between the maximum and
minimum radius at movement of a circle in one direction.
A value is calculated for each direction of movement.
As defined in ISO 230-4 the circular hysteresis is deter-
mined by establishing the maximum difference of meas-
ured radii on an angular position between the two direc-
tions of movement.
2 Machine Information
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