
1.AXIS CONTROL B-63323EN-1/03
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1.3.5 128 straightness compensation points
Overview
In straightness compensation, compensation data is set as the
compensation amounts at the individual compensation points, in the
same way as in stored pitch error compensation. This enables fine
compensation.
Up to five combinations of travel and compensation axes can be used in
the straightness compensation function.
1 Up to 128 compensation points can be set per axis.
2 The settings (a, b, ..., y, and z) at the individual compensation points
can be from -128 to +127.
3 The method of setting data and the compensation timing are the
same as those of pitch error compensation.
4 The number of straightness compensation points is the same as that
of stored pitch error compensation points on a travel axis.
Explanation
- Relationships between pitch error compensation points
and straightness compensation points on a travel axis
Stored pitch error compensation points on a travel axis
Straightness compensation points on a travel axis
α : Number of the most distant pitch error compensation point on
the - side of the travel axis(parameter No.5421)
β : Number of the most distant pitch error compensation point on
the + side of the travel axis(parameter No.5422)
γ : Number of the pitch error compensation point of the reference
position on the travel axis(parameter No.5422)
δ : Number of the straightness compensation point of the
reference position on the travel axis
φ : Number of the most distant straightness compensation point on
the - side of the travel axis(parameters No.5581-5585)
π : Number of the most distant straightness compensation point on
the + side of the travel axis
ω : Number of the start compensation point in 128-point
straightness compensation(1280 for a system with ten or more
controlled axes, 3072 for a system with 11 or more controlled
axes)