9 Communications Functions
9 - 4
High-function General-purpose Inverter RX2 Series User’s Manual
To configure the 3G3RX2 Series Inverter for RS485 communications, the following settings are
required.
Settings
Parameter No. Function name Data
Default
data
Unit
CF-01
RS485 communication
baud rate selection
03: 2400 bps
05
04: 4800 bps
05: 9600 bps
06: 19200 bps
07: 38400 bps
08: 57600 bps
09: 76800 bps
10: 115200 bps
CF-02
RS485 communication
Node allocation
1. to 247.: Allocate each inverter’s station
number. Set station numbers to
control several inverters simul-
taneously.
1.
CF-03
RS485 communication
parity selection
00:
01:
02:
Without parity
Even number parity
Odd number parity
00
CF-04
RS485 communication
stop-bit selection
01: 1 bit
01
02: 2 bit
CF-05
RS485 communication
error selection
00:
01:
02:
03:
04:
Error
Trip after deceleration stop
Ignore
Free run
Deceleration stop
02
CF-06
RS485 communication
timeout setting
0.00: Function disabled
0.00 s
0.01 to 100.00: Length of time to occurrence of
a communications timeout
CF-07
RS485 communication
wait time setting
0 to 1000: Time to wait for response from
the inverter
2ms
CF-08
RS485 communication
mode selection
01:
02:
03:
Modbus-RTU
EzCOM
EzCOM management
01
CC-01 to CC-07
Output Terminal
Function
049: [NDc] signal is turned ON when
a communication disconnection
occurs. Turn the signal OFF by
resetting errors.
-
RS+
RS–
RP
RS–
Terminating resistor
enabled (100Ω)
RS+
RS–
RP
RS–
RS+
RS–
RP
RS–
External
equipment
(Master)
+–
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