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GSK218MC Series Machining Center CNC System PLC&Installation Connetion Manual
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Inst
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Rotation axis pitch error example, the character of the rotation axis is overlapped of its start and
end position, and its shifting value of each revolution is 360 degree, which is divided into N areas; refer
to the Fig. 4-7-8:
The following figure (Fig. 4-7-9) shows after the Fig. 4-7-8 unfolded:
In this case, the compensation amount of both the compensation start and end are shared with
same area, and therefore, the start and end of the compensation value are set to same. The shifting
value of each revolution is 360 degree based upon the character of the revolving axis; the
compensation amount of the overall compensation areas are 0 (that is, N1+N2+……+N6=0), if they
are not 0, the pitch error of each rotation will be accumulated, so that the position offset occurs. The
more along with the equidirectional rotation is, the bigger of the position offset value is. Refer to the Fig.
4-7-9 for the pitch error compensation. In this moment, the parameter setting of the pitch error data in
the system is shown in the Table 4-7-8:
Table 4-7-8
