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1 STARTING AND STOPPING
1.1 Starting
• When [Pr.42] External command function selection is set to 0: Start with external command and [Cd.8] External command
valid is set to 1: External command valid in the pre-analysis mode, do not turn off and on Positioning start signal [Y10, Y11,
Y12, Y13]. Positioning start signal input at quick external start (Warning code: 09A7H) occurs and no operation is started.
• When [Pr.42] External command function selection is set to a value other than 0: Start with external command in the pre-
analysis mode, an external command signal is disabled for 1.77ms maximum after start starting. Input an external
command signal 1.77ms or longer after starting.
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Precautions for the processing performed at the pre-analysis of positioning data
The following table lists the processing performed at the pre-analysis of positioning data.
Note that if [Cd.43] Analysis mode setting is set to 1: Pre-analysis mode and is held, the analysis of the next positioning data
will start immediately after the current positioning operation is completed.
For example, Positioning complete signal [X14, X15, X16, X17] turns on at the completion of positioning and immediately
turns off when the pre-analysis is started at the completion of positioning. Thus, depending on the scan time, the on state of
the signal may not be detected by the program used. If necessary, set 0 in [Cd.3] Positioning start No. after the positioning
starts to avoid the analysis of the next positioning data.
Program example
For the program example of the quick start, refer to the following.
Major positioning control
Processing performed at the pre-analysis of positioning data
Position control
1-axis linear control
• Clearing the axis control data
• Initializing the axis monitor data
• Turning off Positioning complete signal [X14, X15, X16, X17]
2-axis linear interpolation control
3-axis linear interpolation control
4-axis linear interpolation control
1-axis fixed-feed control
• Clearing the axis control data
• Initializing the axis monitor data
• Turning off Positioning complete signal [X14, X15, X16, X17]
• Clearing the current feed value to 0
• Clearing the values after the decimal point held in the RD75
2-axis fixed-feed control
3-axis fixed-feed control
4-axis fixed-feed control
2-axis circular interpolation
control
• Clearing the axis control data
• Initializing the axis monitor data
• Turning off Positioning complete signal [X14, X15, X16, X17]
3-axis helical interpolation control
• Clearing the axis control data
• Initializing the axis monitor data
• Turning off Positioning complete signal [X14, X15, X16, X17]
1-axis speed control
2-axis speed control
3-axis speed control
4-axis speed control
• Clearing the axis control data
• Initializing the axis monitor data
• Turning off Positioning complete signal [X14, X15, X16, X17]
When [Pr.21] Current feed value during speed control is 2: Clear current feed value to 0, the
following processing is also performed.
• Clearing the current feed value to 0
• Clearing the values after the decimal point held in the RD75
Speed-position switching control
• Clearing the axis control data
• Initializing the axis monitor data
• Turning off Positioning complete signal [X14, X15, X16, X17]
When [Pr.21] Current feed value during speed control is 2: Clear current feed value to 0, the
following processing is also performed.
• Clearing the current feed value to 0
• Clearing the values after the decimal point held in the RD75
Position-speed switching control
Current value change
• Clearing the axis control data
• Initializing the axis monitor data
• Turning off Positioning complete signal [X14, X15, X16, X17]
• Clearing the current feed value to 0
• Clearing the values after the decimal point held in the RD75
Summary of Contents for MELSEC iQ-R RD75P4
Page 1: ...MELSEC iQ R Positioning Module User s Manual Application RD75P2 RD75P4 RD75D2 RD75D4 ...
Page 2: ......
Page 13: ...11 MEMO ...
Page 19: ...17 CONTENTS INDEX 588 REVISIONS 592 WARRANTY 593 TRADEMARKS 594 ...
Page 498: ...496 13 PROGRAMMING 13 2 List of Labels Used ...
Page 503: ...13 PROGRAMMING 13 4 Program Example 501 13 ...
Page 514: ...512 13 PROGRAMMING 13 4 Program Example Restart program Parameter data initialization program ...
Page 515: ...13 PROGRAMMING 13 4 Program Example 513 13 Flash ROM write program Error reset program ...
Page 516: ...514 13 PROGRAMMING 13 4 Program Example Stop program ...
Page 565: ...APPENDICES Appendix 4 Operation Examples of When the Remote Head Module Is Mounted 563 A ...
Page 597: ......