Mitsubishi Electric 800 Series Instruction Manual page 546

600v class specification inverter

Hide thumbs Also See for 800 Series:

Table of Contents

How to wire RS-485 terminals

• 1 inverter and 1 computer with RS-485 terminals

• Multiple inverters and 1 computer with RS-485 terminals

Make connection in accordance with the Instruction Manual of the computer to be used with.

Fully check the terminal numbers of the computer since they vary with the model.

For the inverter farthest from the computer, set the terminating resistor switch to ON (100  side).

• For branching, connect the wires as shown below.

To computer ground

To computer receive

To computer send

Two-wire type connection

• If the computer is 2-wire type, a connection from the inverter can be changed to 2-wire type by passing wires across

reception terminals and transmission terminals of the RS-485 terminals.

• A program should be created so that transmission is disabled (receiving state) when the computer is not sending and

reception is disabled (sending state) during sending to prevent the computer from receiving its own data.

Transmission

(N) Operation via communication and its settings

To receiving terminal

of the next inverter

To sending terminal

of the next inverter

To next inverter

To earth (ground)

Show Quick Links

Chapters

Table of Contents