4-2 Function Mode ModBus-Related Parameter Settings ModBus communication requires the following settings. Be sure to set the parameters shown below. In case the parameter settings are changed, ModBus communication will not start until the Inverter is turned ON again, even if "485" is selected with the 485/OPE selector. The parameters of C070s cannot be changed or set through ModBus communication. Set with the Digital Operator. ModBus Communication-Related Parameter List 4 Functions 4-79 Parameter No. Function name Data Default setting Unit A001 Frequency reference selection 00: Digital Operator (volume) 01: Terminal 02: Digital Operator (F001) 03: ModBus communication 10:
Frequency operation result 00 ⎯ A002 RUN command selection 01: Terminal 02: Digital Operator 03: ModBus communication 02 ⎯ b089 Monitor display selection 01: Output frequency monitor 02: Output current monitor 03: Rotation direction monitor 04: PID feedback value monitor 05: Multi-function input monitor 06: Multi-function output monitor 07: Frequency conversion monitor 01 ⎯ C070 Operator/ModBus selection 02: Digital Operator 03: ModBus 02 ⎯ C071 Communication speed selection (Baud rate selection) 04: 4800 bps 05: 9600 bps 06: 19200 bps 04 ⎯ C072 Communication station No. selection 1 to 32 1. ⎯ C074 Communication parity selection 00: No parity 01: Even 02:
Odd 00 ⎯ C075 Communication stop bit selection 1: 1 bit 2: 2 bits 1 ⎯ C076 Communication error selection 00: Trip 01: Trip after deceleration stop 02: Ignore 03: Free run 04: Deceleration stop 02 ⎯ C077 Communication error timeout 0.00 to 99.99 0.00 s C078 Communication wait time 0 to 1000 0. ms