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YASKAWA G7 User Manual

YASKAWA G7
92 pages
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Modbus Communication Manual
G7 Drive
Drive Model: CIMR-G7U* Document Number: TM.G7.11

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YASKAWA G7 Specifications

General IconGeneral
TypeDC Drive
Enclosure RatingIP20
Overload Capacity150% for 60 seconds
Protection FunctionsOvercurrent, Overvoltage, Undervoltage, Overtemperature, Short Circuit
Communication InterfaceRS-485
Humidity5 to 95% (non-condensing)
Storage Temperature-20°C to 60°C (-4°F to 140°F)

Summary

Warnings and Cautions

General Safety Precautions

Important safety warnings and precautions for installing, operating, and servicing the G7 drive.

Chapter 1 - Connections

Connection Check Sheet

Checklist for connecting and configuring the G7 drive for serial communications.

Serial Network Connections

Details on connecting the G7 drive to RS-232, RS-422, and RS-485 networks.

Communication Parameters

Explanation of parameters affecting RS-232, RS-422, and RS-485 communication setup.

Verify Communication

Guide to verify serial communication setup and functionality between controller and drive.

Chapter 2 - Message Formats

Protocol and Function Codes

Overview of Modbus protocol, supported function codes, and message formats.

Read/Write Register Messages

Details of Modbus command/response formats for reading and writing registers.

Error Handling and Verification

Information on Modbus communication errors, no response scenarios, and CRC-16 calculation.

Chapter 3 - Troubleshooting

RS-232 Communication Troubleshooting

Troubleshooting guide for issues related to RS-232 serial communication.

RS-422/RS-485 Communication Troubleshooting

Troubleshooting guide for issues related to RS-422/RS-485 serial communication.

RS-422/RS-485 Self-Test

Procedure to perform a self-test of the drive's RS-422/RS-485 communication interface.

Chapter 4 - G7 Drive Parameters

Modbus Register Overview

Details on command, broadcast, and monitor registers for Modbus RTU communication.

Drive Parameter Reference

Comprehensive reference for drive parameters organized by groups (A through P).

Modbus TCP/IP and Parameter Update Commands

Specific registers for TCP/IP and commands for updating drive parameters.

Chapter 5 - User Notes

User Parameter Settings

Table for recording user-specific parameter settings and their default values.

Hex/Dec Conversion Table

Reference table for converting hexadecimal values to decimal and vice versa.

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