Contents1 Introduction 51.1 How to Read This Design Guide 51.1.1 Symbols 51.1.2 Abbreviations 51.2 Definitions 61.2.1 Frequency Converter 61.2.2 Input 61.2.3 Motor 61.2.4 References 61.2.5 Miscellaneous 71.3 Safety Precautions 81.4 Software Version 91.5 CE Labelling 101.6 Air Humidity 112 Product Overview 122.1 Enclosure Type Overview 122.2 Electrical Installation 132.3 Control Structures 142.3.1 Control Principle 142.3.2 FC 360 Controls 142.3.3 Control Structure in VVCplus 152.3.4 Internal Current Control in VVCplus Mode 162.3.5 Local (Hand On) and Remote (Auto On) Control 162.4 Reference Handling 172.4.1 Reference Limits 182.4.2 Scaling of Preset References and Bus References 192.4.3 Scaling of Analog and Pulse References and Feedback 192.4.4 Dead Band Around Zero 212.5 PID Control 242.5.1 Speed PID Control 242.5.2 Process PID Control 272.5.3 Process Control Relevant Parameters 282.5.4 Example of Process PID Control 292.5.5 Optimisation of the Process Regulator 312.5.6 Ziegler Nichols Tuning Method 312.6 General Aspects of EMC 322.6.1 General Aspects of EMC Emissions 322.6.2 EMC Test Results 33Contents VLT® AutomationDrive FC 360 Design GuideMG06B202 - VLT® is a registered Danfoss trademark 1
