
B-63323EN-1/03 1.AXIS CONTROL
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The following relationships hold:
i δ = φ + (γ-α)
ii π = φ + (β-α)
and π, δ are automatically calculated from α, β, γ, and φ. Therefore, no
parameters need be set for them.
- Display and setting of straightness compensation data
The setting of 128-point straightness compensation data is supported
by the stored pitch error compensation data setting screen. From this
setting screen, set 128-point straightness compensation data above
compensation point number 1280 (3072 for a system with 11 or more
controlled axes).
- Input/output of straightness compensation data
The 128-point straightness compensation data is input and output in
parameter format, in the same way as stored pitch error compensation
data. A straightness compensation point number plus 10000 is equal to
the corresponding parameter number. (The format is the same as that
of pitch error compensation data.)
The input/output of 128-point straightness compensation data is
performed at the same time as stored pitch error compensation data. If
128-point straightness compensation data is input to a system that does
not have this function, alarm SR302 "Invalid data number" is
generated.
- Floppy directory display
When 128-point straightness compensation data is used, the file names
assumed when the compensation data is output to a floppy cassette are
as follows:
PITCH.TXT = Pitch error compensation data and straightness
compensation data
PARA-PCH.TXT = Parameters, pitch error compensation data, and
straightness compensation data
- Changing straightness compensation data with G10
Compensation data for the 128-straightness-compensation-set function
can be changed with G10 parameter input, in the same way as pitch
error compensation data. For a compensation data number, specify a
number equal to the data number plus 10000, in the same way as when
changing pitch error data.
This allows straightness compensation data to be changed during
automatic operation, without turning off the power. Note, however,
that data such as the compensation interval and compensation
magnification cannot be changed.
- Input/output of straightness compensation data using the NC window
Compensation data for 128 straightness compensation sets can be input
and output from PMC MMC, using the NC window function.