Cleveland Range inverter manual Modbus-Rtucommunication, Introduction, Specifications

CHAPTER 5 - MODBUS-RTU COMMUNICATION

5.1 Introduction

This manual is about the specifications, installation and operation of MODBUS-RTU for communication with PC or FA computer.

5.1.1Features

Easy use of drives in Factory Automation by user programming

Change and monitoring of drive parameters using computer

5.1.2Interfacing type of RTU Reference:

-Allows the drive to communicate with any other computers.

-Allows connection of up to 31 drives with multi-drop link system.

-Ensure noise-resistant interface.

Users can use any kind of RS232-485 converters. However a converter that has built-in ‘automatic RTS control’ is highly recommended. Because the specifications of converters depend on the manufacturers, please refer to the manual for detailed converter specifications.

5.1.3Before Installation

Before installation and operation, this manual should be read thoroughly. If not, it can cause personal injury or damage other equipment.

5.2 Specifications

5.2.1Performance Specifications

Items	Specifications
Communication method	RS485
Transmission form	Bus method Multi-drop Link System
Applicable inverter	ACTIONMASTER series drive
Number of drives	Maximum 31 drives connectable
Transmission distance	Max. 1200m

5.2.2Hardware Specifications

Items	Specifications
Installation	S+, S-, CM terminals on control terminal strip
Power Supply	Insulated from the inverter power supply

5.2.3Communication Specifications

Items		Specifications
Communication speed		19200/9600/4800/2400/1200 bps selectable
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