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INTRODUCTION
Thank you for purchasing the Mitsubishi general-purpose programmable controller MELSEC-A Series.
Always read through this manual, and fully comprehend the functions and performance of the A Series PLC
before starting use to ensure correct usage of this product.
When applying the program examples introduced in this manual to an actual system, ensure the applicability
and confirm that it will not cause system control problems.
CONTENTS
SAFETY PRECAUTIONS ............................................................................................................................ A- 1
CONDITIONS OF USE FOR THE PRODUCT ........................................................................................... A- 5
REVISIONS .................................................................................................................................................. A- 6
INTRODUCT ION .......................................................................................................................................... A- 8
CONTENT S .................................................................................................................................................. A- 8
ABOUT MANUALS ....................................................................................................................................... A- 15
COMPLIANCE WITH EMC AND LOW VOLTAGE DIRECTIVES ......................................................... A- 16
USING THIS MANUAL (1) ............................................................................................................................ A- 17
USING THIS MANUAL (2) ............................................................................................................................ A- 18
USING THIS MANUAL (3) ............................................................................................................................ A- 19
GENERIC TERMS AND ABBREVIATIONS ................................................................................................ A- 20
ENCLOSED PARTS ..................................................................................................................................... A- 21
SECTION 1 PRODUCT SPECIFICATIONS AND HANDLING
1. PRODUCT OUTLINE 1- 1 to 1- 20
1.1 Positioning control .................................................................................................................................. 1- 2
1.1.1 Features of D75P2 .......................................................................................................................... 1- 2
1.1.2 Purpose and applications of positioning control ............................................................................. 1- 4
1.1.3 Mechanism of positioning control ................................................................................................... 1- 6
1.1.4 Outline design of positioning system .............................................................................................. 1- 8
1.1.5 Communicating signals between D75P2 and each module ........................................................... 1- 10
1.2 Flow of system operation ........................................................................................................................ 1- 12
1.2.1 Flow of all processes ........................................................................................................................ 1- 12
1.2.2 Outline of starting ............................................................................................................................. 1- 14
1.2.3 Outline of stopping ........................................................................................................................... 1- 16
1.2.4 Outline for restarting ......................................................................................................................... 1- 17
1.3 Outline of communication ....................................................................................................................... 1- 18
1.3.1 Cyclic transmission........................................................................................................................... 1- 19
1.3.2 Transient transmission ..................................................................................................................... 1- 20
2. SYSTEM CONFIGURATION 2- 1 to 2- 12
2.1 General image of system ....................................................................................................................... 2- 2
2.2 List of configuration devices .................................................................................................................. 2- 4
2.3 Applicable system .................................................................................................................................. 2- 6
2.4 Precautions for use ................................................................................................................................ 2- 8