Danfoss VLT Midi Drive FC 280, Design Manual

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Contents
1 Introduction
6
1.1 Purpose of the Design Guide 6
1.2 Additional Resources 6
1.3 Definitions 6
1.3.1 Frequency Converter 6
1.3.2 Input 6
1.3.3 Motor 6
1.3.4 References 7
1.3.5 Miscellaneous 7
1.4 Document and Software Version
9
1.5 Approvals and Certifications
9
1.5.1 CE Mark 9
1.5.2 Low Voltage Directive 9
1.5.3 EMC Directive 9
1.6 Safety
10
2 Product Overview
11
2.1 Enclosure Size Overview
11
2.2 Electrical Installation
12
2.2.1 Motor Connection 14
2.2.2 AC Mains Connection 15
2.2.3 Control Terminal Types 16
2.2.4 Wiring to Control Terminals 17
2.3 Control Structures 17
2.3.1 Control Modes 17
2.3.2 Control Principle 19
2.3.3 Control Structure in VVC
+
19
2.3.4 Internal Current Control in VVC + Mode 20
2.3.5 Local (Hand On) and Remote (Auto On) Control 20
2.4 Reference Handling 21
2.4.1 Reference Limits 22
2.4.2 Scaling of Preset References and Bus References 23
2.4.3 Scaling of Analog and Pulse References and Feedback 23
2.4.4 Dead Band Around Zero 24
2.5 PID Control
27
2.5.1 Speed PID Control 27
2.5.2 Process PID Control 30
2.5.3 Process Control Relevant Parameters 31
2.5.4 Example of Process PID Control 32
Contents Design Guide
MG07B102 Danfoss A/S © 03/2016 All rights reserved. 1