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3 - 7
Chapter 3 Specifications and Functions
3.2.2 LD77MS main functions
The outline of the main functions for positioning control with the Simple Motion module
is described below. (Refer to "Section 2" for details on each function.)
Main functions
Details
Reference
section
O
P
R
control
Machine OPR control
Mechanically establishes the positioning start point using
a near-point dog, etc. In the data setting method, no axis
movement occurs since the current position is set as the
home position. (Positioning start No. 9001)
8.2
Fast OPR control
Positions a target to the OP address ( Md.21 Machine
feed value) stored in the Simple Motion module using
machine OPR. (Positioning start No. 9002)
8.3
Major posit
ioning c
ontrol
Position
control
Linear control
(1-axis linear control)
(2-axis linear interpolation control)
(3-axis linear interpolation control)
(4-axis linear interpolation control)
Positions a target using a linear path to the address set in
the positioning data or to the position designated with the
movement amount.
9.2.2
9.2.3
9.2.4
9.2.5
Fixed-feed control
(1-axis fixed-feed control)
(2-axis fixed-feed control)
(3-axis fixed-feed control)
(4-axis fixed-feed control)
Positions a target by the movement amount designated
with the amount set in the positioning data.
(With fixed-feed control, the " Md.20 Current feed value"
is set to "0" when the control is started. With
2-, 3-, or 4-axis fixed-feed control, the fixed-feed is fed
along a linear path obtained by interpolation.)
9.2.6
9.2.7
9.2.8
9.2.9
2-axis circular interpolation control
Positions a target using an arc path to the address set in
the positioning data, or to the position designated with the
movement amount, sub point or center point.
9.2.10
9.2.11
Speed
control
Speed control
(1-axis speed control)
(2-axis speed control)
(3-axis speed control)
(4-axis speed control)
Continuously outputs the command corresponding to the
command speed set in the positioning data.
9.2.12
9.2.13
9.2.14
9.2.15
Speed-position switching control
First, carries out speed control, and then carries out
position control (positioning with designated address or
movement amount) by turning the "speed-position
switching signal" ON.
9.2.16
9.2.17
Position-speed switching control
First, carries out position control, and then carries out
speed control (continuous output of the command
corresponding to the designated command speed) by
turning the "position-speed switching signal" ON.
9.2.18
Other
control
Current value changing
Changes the current feed value ( Md.20 ) to the address
set in the positioning data.
The following two methods can be used.
(The machine feed value ( Md.21 ) cannot be changed.)
• Current value changing using positioning data
• Current value changing using current value changing
start No. (No. 9003)
9.2.19
NOP instruction
No execution control method. When NOP instruction is
set, this instruction is not executed and the operation of
the next data is started.
9.2.20
JUMP instruction
Unconditionally or conditionally jumps to designated
positioning data No.
9.2.21
LOOP
Carries out loop control with repeated LOOP to LEND.
9.2.22
LEND
Returns to the beginning of the loop control with repeated
LOOP to LEND.
9.2.23
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 ...
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