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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