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3 MAJOR POSITIONING CONTROL
3.2 Positioning Data Setting
Current feed value
[Md.20] Current feed value during the position-speed switching control depends on the setting of [Pr.21] Current feed value
during speed control as follows.
Time taken for switching from the position control to speed control
The time taken from when Position-speed switching signal is turned on to when Position-speed switching latch flag ([Md.31]
Status: b5) is turned on is 1ms.
Setting of [Pr.21] Current feed value
during speed control
[Md.20] Current feed value
0: Current feed value is not updated
The current feed value is updated during the position control. After the control is switched to the speed
control, the current feed value at that point is held.
1: Current feed value is updated
The current feed value is updated during both position control and speed control.
2: Current feed value is cleared to zero
The current feed value is updated during the position control. When the control is switched to the speed
control, the current feed value is cleared to 0.
t
t
t
0
Speed
Position control
Maintained
Updated
Speed control
Speed
Position control
Speed control
Speed Position control
Speed control
Updated
Updated
(a) Current feed value is not updated
(b) Current feed value is updated
(c) Current feed value is cleared to zero
OFF
ON
OFF
ON
1ms
Position-speed switching signal
Position-speed switching latch flag
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: ......