![background image](http://html.mh-extra.com/html/mitsubishi-electric/melsec-l-series/melsec-l-series_user-manual_238757048.webp)
1 - 18
Chapter 1 Product Outline
Overview of acceleration/deceleration processing control
Acceleration/deceleration processing for the positioning processing, manual pulse-
generator processing, OPR processing and JOG processing is performed using the
user-specified method, acceleration time and deceleration time.
(1) Acceleration/deceleration method
There are two types of acceleration and deceleration processing: the trapezoidal
acceleration/deceleration processing method and S-curve acceleration/
deceleration processing method. A detailed parameter is used to set which
method is used. The specified acceleration/deceleration method is applied to all
accelerations and decelerations when starting and completing positioning
processing, OPR processing and JOG processing, as well as when changing the
speed.
(a) Trapezoidal acceleration/deceleration processing method
This is a method in which linear acceleration/deceleration is carried out
based on the acceleration time, deceleration time, and speed limit value set
by the user.
Velocity
Time
(b) S-curve acceleration/deceleration processing method
This method reduces the load on the motor when starting and stopping.
This is a method in which acceleration/deceleration is carried out gradually,
based on the acceleration time, deceleration time, speed limit value, and S-
curve ratio (1 to 100%) set by the user.
Velocity
Time
(2) Acceleration time, deceleration time, sudden-stop deceleration time
(a) Four types each of the acceleration time and deceleration time for
positioning control can be set using basic parameters 2 and detailed
parameters 2.
• Acceleration time…….The time elapses before the speed of 0 reaches
the limit value.
• Deceleration time…….The time elapses before the speed at the limit
value reaches 0.
(b) The sudden-stop deceleration time (1 to 8388608 ms) is set using the
detailed parameters 2.
Summary of Contents for MELSEC-L Series
Page 2: ......
Page 30: ...MEMO ...
Page 70: ...2 10 Chapter 2 System Configuration MEMO ...
Page 83: ...3 13 Chapter 3 Specifications and Functions MEMO ...
Page 103: ...3 33 Chapter 3 Specifications and Functions MEMO ...
Page 107: ...3 37 Chapter 3 Specifications and Functions MEMO ...
Page 111: ...3 41 Chapter 3 Specifications and Functions MEMO ...
Page 115: ...3 45 Chapter 3 Specifications and Functions MEMO ...
Page 140: ...4 22 Chapter 4 Installation Wiring and Maintenance of the Product MEMO ...
Page 253: ...5 113 Chapter 5 Data Used for Positioning Control MEMO ...
Page 342: ...5 202 Chapter 5 Data Used for Positioning Control MEMO ...
Page 438: ...7 20 Chapter 7 Memory Configuration and Data Process MEMO ...
Page 440: ...MEMO ...
Page 485: ...9 25 Chapter 9 Major Positioning Control MEMO ...
Page 594: ...9 134 Chapter 9 Major Positioning Control MEMO ...
Page 624: ...10 30 Chapter 10 High Level Positioning Control MEMO ...
Page 656: ...11 32 Chapter 11 Manual Control MEMO ...
Page 690: ...12 34 Chapter 12 Expansion Control MEMO ...
Page 798: ...13 108 Chapter 13 Control Sub Functions MEMO ...
Page 866: ...14 68 Chapter 14 Common Functions MEMO ...
Page 884: ...15 18 Chapter 15 Dedicated Instructions MEMO ...
Page 899: ...16 15 Chapter 16 Troubleshooting MEMO ...
Page 1036: ...Appendix 88 Appendices MEMO ...
Page 1039: ......