Fuji Electric FRENIC-HVAC User Manual page 607

Chapter 7
BLOCK DIAGRAMS FOR CONTROL LOGIC
This chapter provides the main block diagrams for the control logic of the FRENIC-HVAC series of
inverters.
Contents
7.1 Symbols Used in Block Diagrams and their Meanings ............................................................................... 7-1
7.2 Frequency Command Block ........................................................................................................................ 7-2
7.3 Drive Command Block ............................................................................................................................... 7-4
7.4 V/f Control Block ....................................................................................................................................... 7-5
7.5 PID Process Control Block ......................................................................................................................... 7-7
7.6 External PID Process Control Block ........................................................................................................... 7-9
7.7 FM1/FM2 Output Selector ........................................................................................................................ 7-11