7.2 Status Menu
64
7.3 Quick Menu
64
7.4 Quick Menu Parameters
65
7.5 Main Menu
68
7.6 Quick Transfer of Parameter Settings between Multiple Frequency Converters
68
7.7 Read-out and Programming of Indexed Parameters
68
7.8 Initialise the Frequency Converter to Default Settings in two Ways
69
7.8.1 Initialise the Frequency Converter to Default Settings in two Ways 69
8 RS-485 Installation and Set-up
70
8.1.1 Overview 70
8.1.4 EMC Precautions 71
8.2 FC Protocol Overview
71
8.3 Network Configuration
72
8.4 FC Protocol Message Framing Structure
72
8.4.1 Content of a Character (byte) 72
8.4.2 Telegram Structure 72
8.4.3 Telegram Length (LGE) 72
8.4.6 The Data Field 73
8.4.13 Process Words (PCD) 75
8.5 Examples
75
8.6 Modbus RTU Overview
76
8.6.1 Assumptions 76
8.6.2 What the User Should Already Know 76
8.6.3 Modbus RTU Overview 76
8.6.4 Frequency Converter with Modbus RTU 77
8.8 Modbus RTU Message Framing Structure
77
8.8.1 Frequency Converter with Modbus RTU 77
8.8.2 Modbus RTU Message Structure 77
8.8.3 Start/Stop Field 78
8.8.4 Address Field 78
8.8.5 Function Field 78
8.8.6 Data Field 78
8.8.7 CRC Check Field 78
8.8.9 How to Control the Frequency Converter 80
8.8.10 Function Codes Supported by Modbus RTU 80
8.8.11 Modbus Exception Codes 80
8.9 How to Access Parameters
81
8.9.1 Parameter Handling 81
8.9.2 Storage of Data 81
8.9.3 IND 81
Contents
VLT
®
Micro Drive FC 51 Design Guide
MG02K202 - VLT
®
is a registered Danfoss trademark
3
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