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3 MAJOR POSITIONING CONTROL
3.2 Positioning Data Setting
Fixed-feed control
In the fixed-feed control ([Da.2] Control method = Fixed-feed 1, 2, 3, or 4), motors for the number of specified axes are used
to perform the fixed-feed control in the set axis direction.
In the fixed-feed control, any reminder of the movement amount specified in the positioning data is rounded down to output
the same amount of pulses if it is less than that required for control accuracy.
Operation chart
In the fixed-feed control, the address ([Md.20] Current feed value) of the current stop position (start point address) is set to 0,
and the positioning for the movement amount set in [Da.6] Positioning address/movement amount is performed. The
movement direction is determined by the sign of the movement amount.
• Example of the 1-axis fixed-feed control
• Example of the 2-axis fixed-feed control
0
0
0
0
0
Md.20 Current feed value is set
to 0 at the positioning start.
Positioning start
Reverse direction
Forward direction
Stop position
Movement direction with
a negative movement amount
Movement direction with
a positive movement amount
Specified
movement amount
(0, 0)
(0, 0)
(0, 0)
Y axis
X axis
Md.20 Current feed value of each axis is
set to 0 at the positioning start.
Specified movement
amount
Specified movement
amount
Содержание MELSEC iQ-R RD75P4
Страница 1: ...MELSEC iQ R Positioning Module User s Manual Application RD75P2 RD75P4 RD75D2 RD75D4 ...
Страница 2: ......
Страница 13: ...11 MEMO ...
Страница 19: ...17 CONTENTS INDEX 588 REVISIONS 592 WARRANTY 593 TRADEMARKS 594 ...
Страница 498: ...496 13 PROGRAMMING 13 2 List of Labels Used ...
Страница 503: ...13 PROGRAMMING 13 4 Program Example 501 13 ...
Страница 511: ...13 PROGRAMMING 13 4 Program Example 509 13 Torque change program Step operation program Skip program ...
Страница 512: ...510 13 PROGRAMMING 13 4 Program Example Teaching program Continuous operation interrupt program ...
Страница 513: ...13 PROGRAMMING 13 4 Program Example 511 13 Target position change program Absolute position restoration program ...
Страница 514: ...512 13 PROGRAMMING 13 4 Program Example Restart program Parameter data initialization program ...
Страница 515: ...13 PROGRAMMING 13 4 Program Example 513 13 Flash ROM write program Error reset program ...
Страница 516: ...514 13 PROGRAMMING 13 4 Program Example Stop program ...
Страница 565: ...APPENDICES Appendix 4 Operation Examples of When the Remote Head Module Is Mounted 563 A ...
Страница 568: ...566 APPENDICES Appendix 4 Operation Examples of When the Remote Head Module Is Mounted Common program ...
Страница 584: ...582 APPENDICES Appendix 4 Operation Examples of When the Remote Head Module Is Mounted Restart program ...
Страница 587: ...APPENDICES Appendix 4 Operation Examples of When the Remote Head Module Is Mounted 585 A Stop program ...
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