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Chapter 4

BLOCK DIAGRAMS FOR CONTROL LOGIC

This chapter describes the main block diagrams for the control logic of the FRENIC-Mini series of inverters.

Contents

4.1 Symbols Used in the Block Diagrams and their Meanings......................................................................... 4-1

4.2 Drive Frequency Command Generator ....................................................................................................... 4-2

4.3 Drive Command Generator......................................................................................................................... 4-4

4.4 Terminal Command Decoders..................................................................................................................... 4-6

4.5 Digital Output Selector ............................................................................................................................. 4-10

4.6 Analog Output (FMA) Selector ................................................................................................................ 4-12

4.7 Drive Command Controller....................................................................................................................... 4-14

4.8 PID Frequency Command Generator........................................................................................................ 4-16