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Chapter 9

RUNNING THROUGH RS-485 COMMUNICATION

This chapter describes an overview of inverter operation through the RS-485 communications facility. Refer to the

RS-485 Communication User's Manual for details.

Contents

9.1 Overview on RS-485 Communication.......................................................................................9-1

9.1.1 RS-485 common specifications.......................................................................................... 9-2

9.1.2 Terminal specifications for RS-485 communications .........................................................9-3

[1] RS-485 communications port 1 (for connecting the keypad)..............................................9-3

[2] RS-485 communications port 2 (control circuit terminals)...................................................9-3

9.1.3 Connection method ............................................................................................................9-4

9.1.4 Communications support devices ......................................................................................9-6

[1] Communications level converters .......................................................................................9-6

[2] Requirements for the cable (COM port 1: for RJ-45 connector) ......................................... 9-7

[3] Requirements for the cable (COM port 2: for RS-485 connector).......................................9-7

[4] Branch adapter for multi-drop..............................................................................................9-7

9.1.5 Noise suppression..............................................................................................................9-7

9.2 Overview of FRENIC Loader..................................................................................................... 9-8

9.2.1 Specifications .....................................................................................................................9-8

9.2.2 Connection .........................................................................................................................9-9

9.2.3 Function overview ..............................................................................................................9-9

[1] Setting of function code.......................................................................................................9-9

[2] Multi-monitor......................................................................................................................9-10

[3] Running status monitor ..................................................................................................... 9-11

[4] Test-running.......................................................................................................................9-12

[5] Real-time trace..................................................................................................................9-13

[6] Historical trace...................................................................................................................9-14

[7] USB port on the standard keypad ..................................................................................... 9-15

Fuji Electric Frenic Mega Series User Manual

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