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6-2

6-2 RS-485 Port Specifications and Connection

SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-Axxxx)

Communication Function

6-2 RS-485 Port Specifications and

Connection

Each communication connector pin is shown below.

PSC P24S1 SCS3 S2S5 S4S6

RS−

P2 P1AM PCFI SCFS FVRP

RS+

RS-485 terminal

RS+ RS−

External equipment

(master)

RS−

RS+

RS+ RS−

200

3G3MX2 (No.2) 3G3MX2 (No.3) 3G3MX2 (No.n)

3G3MX2 (No.1)

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

Note. If communication is unstable, install on both ends

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.

Omron SYSDRIVE MX2 SERIES User Manual

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