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Chapter 1 Product Outline
1.1 Positioning control
1.1.1 Features of LD77MS
The LD77MS has the following features.
(1) High-speed starting time
High-speed starting time "0.88ms" (LD77MS4 use) during positioning control is
achieved.
(2) Wide variety of positioning control functions
The main functions (such as OPR control, positioning control and manual
control) which are required for any positioning system and the sub functions
which limit and add functions to those controls are supported.
(a) Enhanced OPR control
1) Additional features of OPR control
Six machine OPR methods are provided: one near-point dog method,
two count methods, one data set method, one scale origin signal
detection method
and one driver OPR method. Select an applicable
method according to the system.
2) OPR retry function
The OPR retry function is provided so that the machine OPR control
can be performed from any position, regardless of the machine stop
position when the system is powered on.
(b) Wide variety of control methods
Positioning controls, such as position control, speed control, speed-position
switching control, position-speed switching control, and other controls, are
provided.
1) Independent control of each axis
Controls, such as position control and speed control, can be performed
independently for each axis at any given timing.
2) Interpolation
control
Interpolation controls using multiple axes can be performed.
(2- to 4-axis linear interpolation control, 2-axis circular interpolation
control, 2- to 4-axis speed control, etc.)
3) Speed-torque
control
Speed control and torque control not including position loop can be
performed.
(c) Large amount of data
Up to 600 positioning data (combinations of data, such as control method,
positioning address, and command speed) per axis can be set.
Summary of Contents for MELSEC-L Series
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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 ...
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