Circularity Test Measurement - Siemens SINUMERIK 840D sl Commissioning Manual

11.3

Circularity test measurement

Functionality
The circularity test serves to set and assess the dynamic response for interpolating axes or
to analyze the contour accuracy on the quadrant transitions (circular contours) achieved by
means of friction compensation (conventional or neural quadrant error compensation).
Operating path
Operating path for the circularity test: Operating area switchover > "Commissioning" >
"Optimization/Test" > "Circularity test"
Measuring parameters
The parameters are entered in the "Measurement" menu.
● Axis names and axis numbers
● Circle that is to be traversed and the actual position values recorded
● The "Measuring time" display field shows the measuring time calculated from the
IBN CNC: NCK, PLC, drive
Commissioning Manual, 07/2007, 6FC5397-2AP10-3BA0
The parameter settings in the input fields "Radius" and "Feed" must correspond to the
values from the part program that controls the circular motion of the axes, taking account
of the feed override switch setting.
"Radius" and "Feed" values for recording the actual position values during the circular
movement.
If only parts of the circle can be represented (i.e. measuring time too short) the measuring
time can be increased in the menu by reducing the feed value. This also applies if the
circularity test is started from the stationary condition.
Optimize the drive.
11.3 Circularity test measurement
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