7 CONTROL SUB FUNCTIONS
7.9 Other Functions
291
7
Acceleration/deceleration processing function
Acceleration/deceleration processing function adjusts the acceleration/deceleration of each control to the acceleration/
deceleration curve suited for the target device. Setting the acceleration/deceleration time changes the slope of the
acceleration/deceleration curve. One of the following two methods can be selected for the acceleration/deceleration curve:
• Trapezoidal acceleration/deceleration
• S-curve acceleration/deceleration
Control details and setting of Acceleration/deceleration time 0 to 3
For the RD75, four acceleration times and four deceleration times can be set. The different acceleration/deceleration times
can be applied to the operations such as the positioning control, JOG operation, and OPR operation. Set the required values
for the acceleration/deceleration times in the parameters shown in the following table, and write them to the RD75. The set
data is validated when the data is written into the RD75.
For details on the settings, refer to the following.
Page 390 [Pr.9] Acceleration time 0, [Pr.10] Deceleration time 0
Page 400 [Pr.25] Acceleration time 1 to [Pr.27] Acceleration time 3
Page 400 [Pr.28] Deceleration time 1 to [Pr.30] Deceleration time 3
Control details and setting of Acceleration/deceleration method setting
In the acceleration/deceleration method setting, an acceleration/deceleration processing method is selected and set. The set
acceleration/deceleration processing is applied to the acceleration/deceleration in all operations (excluding the inching
operation and manual pulse generator operation). The following two acceleration/deceleration processing methods are
provided.
■
Trapezoidal acceleration/deceleration processing method
In this method, the linear acceleration/deceleration is performed based on the acceleration time, deceleration time, and speed
limit value set by users.
Setting item
Setting
value
Setting detail
Initial value at the
factory
[Pr.9]
Acceleration time 0
Set an acceleration time within the range of 1 to 8388608ms.
1000
[Pr.25]
Acceleration time 1
1000
[Pr.26]
Acceleration time 2
1000
[Pr.27]
Acceleration time 3
1000
[Pr.10]
Deceleration time 0
Set a deceleration time within the range of 1 to 8388608ms.
1000
[Pr.28]
Deceleration time 1
1000
[Pr.29]
Deceleration time 2
1000
[Pr.30]
Deceleration time 3
1000
Time
Speed
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: ......