Chapter 9
COMMUNICATION FUNCTIONS
This chapter describes an overview of inverter operation through the RS-485 communications.
Refer to the "RS-485 Communication User's Manual" for details.
Contents
9.1 Overview of RS-485 Communication ·········································································· 9-1
9.1.1 RS-485 common specifications ········································································· 9-2
9.1.2 RS-485 communication terminal specifications ····················································· 9-3
[ 1 ] RS-485 COM port 1 (RJ-45 connector for keypad connection) specification ················ 9-3
[ 2 ] RS-485 COM port 2 (terminal block) specifications ················································ 9-3
9.1.3 Connection method ························································································ 9-4
9.1.4 RS-485 connection devices ·············································································· 9-6
[ 1 ] Converter ····································································································· 9-6
[ 2 ] Requirements for the cable (COM port 1: for RJ-45 connector) ································ 9-6
[ 3 ] Requirements for the cable (COM port 2: for RS-485 terminal block connection) ·········· 9-6
[ 4 ] Branch adapter for multi-drop············································································ 9-6
9.1.5 RS-485 noise suppression ··············································································· 9-7
9.2 FRENIC Loader Overview ······················································································· 9-8
9.2.1 Specifications ································································································ 9-8
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