Basic Information On Motion Control Function Modules - YASKAWA SVC User Manual

Basic Information
on Motion Control
Function Modules
This chapter provides basic information on the Motion Control
Function Modules that are built into the MP3000.
2.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.1.1 SVC Function Module . . . . . . . . . . . . . . . . . . . . . 2-3
2.1.2 SVR Function Module . . . . . . . . . . . . . . . . . . . . . 2-3
2.1.3 Conceptual Diagram . . . . . . . . . . . . . . . . . . . . . . 2-4
2.1.4 External Appearance and Indicators . . . . . . . . . . 2-5
2.2 Specifications . . . . . . . . . . . . . . . . . . . . . . . 2-6
2.2.1 Motion Control Function Module Specifications . . 2-6
2.2.2 MECHATROLINK-III Communications
Specifications for the SVC Function Module . . . . 2-7
2.2.3 SVC Function Module Specifications . . . . . . . . . 2-8
2.2.4 SVR Function Module Specifications . . . . . . . . 2-10
2.2.5 Applicable Versions for Additional Functions . . 2-11
2.3 System Configuration Example . . . . . . . . . 2-12
2.4 Topologies . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
2.4.1 Cascade Connections . . . . . . . . . . . . . . . . . . . . 2-14
2.4.2 Star Connections . . . . . . . . . . . . . . . . . . . . . . . 2-15
2.4.3 Mixed Cascade/Star Connections . . . . . . . . . . . 2-16
2.5 MECHATROLINK Transmission Cycle and the Number of Connected Slave Stations . . 2-17
2.6 Synchronization of the MECHATROLINK-III Transmission Cycle and High-Speed Scan Cycle . .2-19
2.6.1 Synchronization Conditions . . . . . . . . . . . . . . . 2-19
2.6.2 Timing at Which the MECHATROLINK
Transmission Cycle and the High-speed Scan
Cycle Are Synchronized . . . . . . . . . . . . . . . . . . 2-19
2.6.3 Changing Synchronization Cycles . . . . . . . . . . . 2-19
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