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Chapter Four Machine Debugging
207
V
o
lume IV
Inst
allation &
Connecti
on
4. The axes can be compensated: X, Y, Z and 4th
5. The range of the compensation amount: compensation value (-999 pulse equivalent~ +999
pulse equivalent) x the least compensation unit. (Metric system: 0.001mm; Inch system:
0.0001 inch; angle: 0.001deg).
6. The unit of the pitch error compensation of the rotation axis is deg.
7. The system ignores the compensation when pitch error compensation interval is set to 0. (The
pitch error compensation is performed near the middle point of the compensation area)
8. After the related parameter of the pitch error compensation is set, and it can be enabled when
its power restarts and the machinery zero performs.
9. The machinery zero of the tool can not be altered freely after the pitch compensation is
performed, that is, the position of the pitch compensation may inconsistent with the one of the
machine’s actual compensation, and therefore, the machine accuracy is then decreased. If it
is necessary to set the machinery zero again for some special reasons, the data of pitch error
compensation should be inspected again accordingly.
10. The pitch error compensation data can be set for compensating the pitch error along with
each axis, and therefore, enhance the machine accuracy, and its unit of the compensation
value is the inspection unit. The pitch error is varied from one machine to another, so did the
compensation data. In principle, the final user can not alter these data after the pitch error
compensation data are set; and therefore, the machine accuracy may reduce by changing
these data.
z
The relative parameters set by the pitch error compensation
1. Whether to perform the pitch compensation is set by bit parameter
NO:37#0; (0: Do not
compensate, 1: Compensation)
2. Set the pitch error compensation interval of each axis by data parameter
P226~230;
3. The pitch compensation number of the reference point along with each axis is set by data
parameter
P216~220;
The setting explanations of the pitch compensation number of the reference position along with
each axis are shown below:
○
1
The dimension of the pitch compensation number for each compensation point is
corresponding to the one of the coordinate value by this point; that is, the bigger the
compensation point of the machine coordinate value is, the bigger the corresponding
compensation number is.
○
2
When the pitch error compensation is set as required in one area, usually, the compensation
number of its least compensation point which locates on the coordinate system of this area
is regarded as 0. The pitch compensation number of reference point is determined by the
position relationships between the reference point and the No.0 compensation point.