Chapter 9
COMMUNICATION FUNCTIONS
This chapter describes an overview of inverter operation through the RS-485 and CANopen communications.
For details of RS-485 communication, refer to the RS-485 Communication User's Manual.
Contents
9.1
Overview of RS-485 Communication ······································································· 9-1
9.1.1 RS-485 common specifications ······································································· 9-2
9.1.2 Terminal specifications ·················································································· 9-3
[ 1 ] RS-485 communication port 1 (for connecting the keypad) ····································· 9-3
[ 2 ] RS-485 communication port 2 (only for FRN-E2■-2/4/7GA, -2/4/7J) ······················· 9-4
[ 3 ] RS-485 communication port 2 (terminal block) (only for FRN-E2■-2/4/7GB, -4C)······· 9-4
9.1.3 Connection method ······················································································ 9-5
9.1.4 RS-485 connection devices ··········································································· 9-8
[ 1 ] Converter ·································································································· 9-8
[ 2 ] Requirements for the cable (COM port 1: for RJ-45 connector) ································ 9-9
[ 3 ] Requirements for the cable (COM port 2: for RS-485 connector)······························ 9-9
[ 4 ] Branch adapter for multi-drop ········································································· 9-9
9.1.5 RS-485 noise suppression ············································································· 9-9
9.2 CANopen Communication ·················································································· 9-10
9.2.1 Modes ···································································································· 9-10
9.2.2 Connection method ····················································································· 9-11
[ 1 ] Basic connection configuration ······································································ 9-11
[ 2 ] Terminal mode ·························································································· 9-12
9.2.3 Inverter function codes related to CANopen setting ············································ 9-13
9.2.4 Procedures to establish CANopen communication ············································· 9-15
9.2.5 PDO protocol ··························································································· 9-16
[ 1 ] About PDO protocol ··················································································· 9-16
[ 2 ] Receive PDO (from master to inverter) ··························································· 9-17
[ 3 ] Transmit PDO (from inverter to master) ··························································· 9-19
[ 4 ] Communication parameters of receive PDO ····················································· 9-20
[ 5 ] Communication parameters of transmit PDO ···················································· 9-21
[ 6 ] Changing PDO (RPDO/TPDO) mapping entry ················································· 9-22
9.2.6 SDO protocol ··························································································· 9-23
[ 1 ] About SDO ······························································································ 9-23
[ 2 ] Response on SDO error ·············································································· 9-23
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