NCT Group 99M, 2000M manual Rotary Axis Roll-over

5 The Coordinate Data

The value ranges of the length coordinates are shown in the Table below.

input unit	output unit	increment	value range of length	unit of
		system	coordinates	measure
		IS-A	± 0.01-999999.99
mm	mm	IS-B	± 0.001-99999.999	mm
		IS-C	± 0.0001-9999.9999
		IS-A	± 0.001-39370.078
inch	mm	IS-B	± 0.0001-3937.0078	inch
		IS-C	± 0.00001-393.70078
		IS-A	± 0.001-99999.999
inch	inch	IS-B	± 0.0001-9999.9999	inch
		IS-C	± 0.00001-999.99999
		IS-A	± 0.01-999999.99
mm	inch	IS-B	± 0.001-99999.999	mm
		IS-C	± 0.0001-9999.9999

The value ranges of angular coordinates:

increment system	value range of angular coordinates	unit of measure
IR-A	± 0.01-999999.99
IR-B	± 0.001-99999.999	degrees
IR-C	± 0.0001-9999.9999

5.5 Rotary Axis Roll-over

This function can be used in case of rotary axes, i.e., if address A, B or C is selected for operating rotary axis. Handling of roll-over means, that the position on the given axis is not registered between plus and minus infinity, but regarding the periodicity of the axis, e.g., between 0/ and 360/.

Selecting rotary axis

The selection can be executed by setting parameter 0182 A.ROTARY, 0185 B.ROTARY or 0188 C.ROTARY to 1 for axes A, B or C, respectively. If among these parameters one is set to 1

–the control does not execute inch/metric conversion for the appropriate axis,

–roll-over function can be enabled for that axis by setting the appropriate parameter ROLLOVEN to 1.

41