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MELSEC-Q
9 MAJOR POSITIONING CONTROL
9.1.6 Interpolation control
Meaning of interpolation control
In "2-axis linear interpolation control", "3-axis linear interpolation control", "4-axis
linear interpolation control", "2-axis fixed-feed control", "3-axis fixed-feed control",
"4-axis fixed-feed control", “2-axis speed control”, “3-axis speed control”, “4-axis
speed control”, and "2-axis circular interpolation control", control is carried out so
that linear and arc paths are drawn using a motor set in two to four axis directions.
This kind of control is called "interpolation control".
In interpolation control, the axis in which the control system is set is defined as the
"reference axis", and the other axis is defined as the "interpolation axis".
The QD75 controls the "reference axis" following the positioning data set in the
"reference axis", and controls the "interpolation axis" corresponding to the
reference axis control so that a linear or arc path is drawn.
The following table shows the reference axis and interpolation axis combinations.
Axis definition
Axis set to interpolation
control in "
Da.2 Control system"
Reference axis
Interpolation axis
2-axis linear interpolation control, "2-axis fixed-feed
control, 2-axis circular interpolation control, 2-axis
speed control
Any of axes 1, 2,
3, and 4
"Axes to be
interpolated" set in
reference axis
Axis 1
Axis 2, Axis 3
Axis 2
Axis 3, Axis 4
Axis 3
Axis 4, Axis 1
3-axis linear interpolation control, "3-axis fixed-feed
control, 3-axis speed control
Axis 4
Axis 1, Axis 2
Axis 1
Axis 2, Axis 3, Axis 4
Axis 2
Axis 3, Axis 4, Axis 1
Axis 3
Axis 4, Axis 1, Axis 2
4-axis linear interpolation control, "4-axis fixed-feed
control, 4-axis speed control
Axis 4
Axis 1, Axis 2, Axis 3
Summary of Contents for Melsec-Q QD75D1
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Page 41: ...1 17 MELSEC Q 1 PRODUCT OUTLINE MEMO ...
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Page 60: ...2 12 MELSEC Q 2 SYSTEM CONFIGURATION MEMO ...
Page 137: ...5 33 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
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Page 252: ...6 20 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
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Page 436: ...9 120 MELSEC Q 9 MAJOR POSITIONING CONTROL MEMO ...
Page 464: ...10 28 MELSEC Q 10 HIGH LEVEL POSITIONING CONTROL MEMO ...
Page 638: ...14 24 MELSEC Q 14 DEDICATED INSTRUCTIONS MEMO ...
Page 647: ...15 9 MELSEC Q 15 TROUBLESHOOTING MEMO ...
Page 686: ...15 48 MELSEC Q 15 TROUBLESHOOTING MEMO ...
Page 839: ...Appendix 153 MELSEC Q APPENDICES 6 QD75D4N 90 23 27 4 12 98 4 46 Unit mm ...
Page 840: ...Appendix 154 MELSEC Q APPENDICES 7 QD75P1 QD75P2 QD75P4 27 4 23 98 90 4 46 unit mm ...
Page 841: ...Appendix 155 MELSEC Q APPENDICES 8 QD75D1 QD75D2 QD75D4 27 4 23 90 12 98 4 46 unit mm ...
Page 842: ...Appendix 156 MELSEC Q APPENDICES MEMO ...
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