Port Specifications And Connection - Omron SYSDRIVE MX2 SERIES User Manual

6-2 RS-485 Port Specifications and
Connection
Each communication connector pin is shown below.
RS− S7 S6 S5 S4 S3
RS+ MP RP FS FV FI
RS-485 terminal
External equipment
(master)
3G3MX2 (No.1)
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-Axxxx)
6-2 RS-485 Port Specifications and Connection
S2 S1 SC PSC P24
SC AM PC P2 P1
RS+ RS−
RS+ RS−
3G3MX2 (No.2)
Note. If communication is unstable, install on both ends
200 Ω
RS+ RS−
RS+ RS−
3G3MX2 (No.3) 3G3MX2 (No.n)
of the communication cable a Terminal Resistor
matching the characteristic impedance of the
cable.
The built-in Terminal Resistor inside the Inverter
is 200 Ω.
The USB port is
designed exclusively for
communication with a
PC. The RS-422 (RJ45
modular connector) port
is designed exclusively
for communication with
the Digital Operator.
Modbus-RTU
Terminal Resistor
selector switch
6-2
6