HEIDENHAIN TNC 620 (340 56x-01) - Manual (Page 510)

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Returning to the contour „ Mid-program startup in any block in the program, returning the tool to the calculated
nominal position to continue machining
„ Program interruption, contour departure and return
Datum tables „ Multiple datum tables, for storing workpiece-related datums
Touch probe cycles ‹ Touch probe calibration
‹ Compensation of workpiece misalignment, manual or automatic
‹ Datum setting, manual or automatic
‹ Automatic workpiece measurement
‹ Cycles for automatic tool measurement
Specifications
Components „ Main computer with TNC keyboard and integrated 15.1-inch TFT color flat-panel
display with soft keys
Program memory „ 300 MB (on CFR compact flash memory card)
Input resolution and display
step „ To 0.1 µm for linear axes
‹ To 0.01 µm for linear axes
„ To 0.0001° for angular axes
‹ To 0.000 01° for angular axes
Input range „ Maximum 999 999 999 mm or 999 999 999°
Interpolation „ Linear in 4 axes
„ Circular in 2 axes
‹ Circular in 3 axes with tilted working plane (software option 1)
„ Helical: superimposition of circular and straight paths
Block processing time
3-D straight line without radius
compensation „ 6 ms (3-D straight line without radius compensation)
‹ 1.5 ms (software option 2)
Axis feedback control „ Position loop resolution: Signal period of the position encoder/1024
„ Cycle time of position controller: 3 ms
„ Cycle time of speed controller: 600 µs
Range of traverse „ Maximum 100 m (3937 inches)
Spindle speed „ Maximum 100 000 rpm (analog speed command signal)
Error compensation „ Linear and nonlinear axis error, backlash, reversal spikes during circular movements,
thermal expansion
„ Stick-slip friction
User functions