We offer two communications cards, the RS-232 Communications Interface Card and the RS-485 Communications Card, which are both expansion cards for the Inovance MD320 frequency converter.  These cards provide RS-232 and RS-485 communications modes and are fully compliant with internationally accepted electrical parameters.  Users can choose the RS-232 or RS-485 based on their needs, to achieve remote serial control of frequency converter operations and parameter settings.  Fo

Model Description

 

Name

Model

Capability

RS-232 Communications Card

MD32-232

RS232 Communications Interface Card

RS-485 Communications Card

MD32-485

RS485 Communications Interface card

User Guide to the RS-232 Communications Card

For the physical structure and wiring, see the schematic. The RJ45 interface signal setting should be carried out according to the table below.

 

Pin Number

Meaning

4

RS232-TXD

5

RS232-RXD

7、8

WGND

User Guide to the RS-485 Communications Card

For the physical structure and wiring, see the schematic. The RS-485 communications mode offers two connection methods, which are compatible. The user can choose the communications connection that best suits their needs.  For the physical structure and wiring, see Table 8-26.

 

Pin Number

Meaning

2

RS485+

6

RS485-

7、8

WGND