Danfoss VLT AutomationDrive Design Guide

11.6.5 Data Control Byte (BCC) 257
11.6.6 The Data Field 257
11.6.7 The PKE Field 258
11.6.8 Parameter Number (PNU) 259
11.6.9 Index (IND) 259
11.6.10 Parameter Value (PWE) 259
11.6.11 Data Types Supported by FC 300 260
11.6.12 Conversion 260
11.6.13 Process Words (PCD) 261
11.7 Examples
261
11.7.1 Writing a Parameter Value 261
11.7.2 Reading a Parameter Value 261
11.8 Modbus RTU Overview
261
11.8.1 Assumptions 261
11.8.2 What the User Should Already Know 261
11.8.3 Modbus RTU Overview 261
11.8.4 Frequency Converter with Modbus RTU 262
11.9.1 Frequency Converter with Modbus RTU 262
11.10 Modbus RTU Message Framing Structure
262
11.10.1 Frequency Converter with Modbus RTU 262
11.10.2 Modbus RTU Message Structure 262
11.10.3 Start/Stop Field 263
11.10.4 Address Field 263
11.10.5 Function Field 263
11.10.6 Data Field 263
11.10.7 CRC Check Field 263
11.10.8 Coil Register Addressing 264
11.10.9 How to Control the Frequency Converter 266
11.10.10 Function Codes Supported by Modbus RTU 266
11.10.11 Modbus Exception Codes 266
11.11 How to Access Parameters
266
11.11.1 Parameter Handling 266
11.11.2 Storage of Data 266
11.11.3 IND 266
11.11.4 Text Blocks 266
11.11.5 Conversion Factor 267
11.11.6 Parameter Values 267
11.12 Danfoss FC Control Profile
267
Index
275
Contents FC 300 Design Guide
6 MG.33.BD.02 - VLT
®
is a registered Danfoss trademark

Danfoss VLT AutomationDrive Specifications

General

Supply Voltage	3 x 200-240 V ±10% 3 x 380-500 V ±10% 3 x 525-600 V ±10%
Enclosure	IP20
Output Power Range	0.25 kW - 1.5 MW
Communication Protocols	Modbus RTU
Protection Features	Overcurrent, Overvoltage, Undervoltage, Short circuit, Ground fault, Motor overload
Ambient Temperature Range	-10°C to +50°C (14°F to 122°F)