Danfoss VLT FC 103, Design Manual

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Contents
1 Introduction
7
1.1 Purpose of the Design Guide 7
1.2 Organisation 7
1.3 Additional Resources 7
1.4 Abbreviations, Symbols and Conventions 8
1.5 Safety Symbols 9
1.6 Definitions
9
1.7 Document and Software Version
10
1.8 Approvals and Certifications
10
1.8.1 CE Mark 10
1.8.1.1 Low Voltage Directive 10
1.8.1.2 EMC Directive 10
1.8.1.3 Machinery Directive 11
1.8.1.4 ErP Directive 11
1.8.2 C-tick Compliance 11
1.8.3 UL Compliance 11
1.8.4 Marine Compliance (ADN) 11
1.8.5 Export Control Regulations 12
1.9 Safety 12
1.9.1 General Safety Principles 12
2 Product Overview
14
2.1 Introduction
14
2.2 Description of Operation 17
2.3 Sequence of Operation 18
2.3.1 Rectifier Section 18
2.3.2 Intermediate Section 18
2.3.3 Inverter Section 18
2.4 Control Structures 19
2.4.1 Control Structure Open Loop 19
2.4.2 Control Structure Closed Loop 19
2.4.3 Local (Hand On) and Remote (Auto On) Control 20
2.4.4 Reference Handling 21
2.4.5 Feedback Handling 23
2.5 Automated Operational Functions
24
2.5.1 Short-circuit Protection 24
2.5.2 Overvoltage Protection 24
2.5.3 Missing Motor Phase Detection 24
2.5.4 Mains Phase Imbalance Detection 25
Contents Design Guide
MG16G202 Danfoss A/S © 08/2015 All rights reserved. 1