9. Machine Error Compensation
9.1 Function Outline
II - 306
(2) Memorized relative position compensation
This method‚ according to the parameters specified in advance‚ compensates the relative position
error between two orthogonal axes caused by deflection of the moving stand.
For this‚ as shown in Fig. 1. 2‚ specify the compensation amount in the compensation axis direction in
the division points obtained by equally dividing the machine coordinates of the base axis.
The base axis is one of the two orthogonal axes to which relative position compensation applies. This
axis is used as the criterion for relative-error measurement. The compensation axis is the coordinate
axis that is orthogonal to the base axis. The compensation is actually made for this coordinate axis.
The section between division points n and n+1 is compensated smoothly by linear approximation.
Command machine position
along base axis
Actual machine position
of compensation axis
Reference point
Actual machine position for
which no compensation is
made
n
n+1
n+2
Command machine position
Compensation
amount
Compensation amount
between division points
: Division points
Fig. 1. 2 Relationship between base and compensation axes
Содержание MELDAS 60 Series
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