Table Of Contents - Danfoss VTT Series Applications And Installation Manual

Content
Contents
Introduction ...........................................................................................................................................7
Organization of this Manual .....................................................................................................................................................................7
Document Symbols .....................................................................................................................................................................................8
Definitions .......................................................................................................................................................................................................9
Overview of the VTT Compressor .......................................................................................................11
VTT Product Nomenclature ................................................................................................................................................................... 11
Features of the VTT Compressor .......................................................................................................................................................... 13
Configurations of the VTT Compressor Models ............................................................................................................................. 13
Compressor Module ................................................................................................................................................................................. 13
Capacity Control using IntraFlow™ .............................................................................................................................................. 14
Economizer Option ............................................................................................................................................................................ 14
Motor Cable Type ............................................................................................................................................................................... 14
Magnetic Bearings.............................................................................................................................................................................. 14
DC-DC Converter ...................................................................................................................................................................................... 15
Drive Module .............................................................................................................................................................................................. 16
Drive Module External Components ........................................................................................................................................... 17
Drive Module Internal Components ............................................................................................................................................ 17
Safety Precautions .............................................................................................................................................................................. 18
Thermal Memory Retention Compliance .................................................................................................................................. 18
Drive Module Logic to Power Interface .................................................................................................................................... 19
Power Section .................................................................................................................................................................................. 19
Drive Module Control Input and Output Signals .................................................................................................................... 20
Drive Module Electromagnetic Compatibility (EMC) Considerations ............................................................................. 20
Electrical and Fire Hazard Protection........................................................................................................................................... 20
Drive Module Cooling ....................................................................................................................................................................... 20
Cooling Fans ...................................................................................................................................................................................... 20
Drive Module Technical Specifications ....................................................................................................................................... 21
Motor Cable Sizing ............................................................................................................................................................................. 21
Electronic Control System ............................................................................................................................................................... 21
System Interface Connections ....................................................................................................................................................... 22
Compressor Control Module (CCM) Board ................................................................................................................................ 25
Pulse Width Modulator Amplifier (PWM) Board ...................................................................................................................... 25
Compressor Interface Module (CIM) Board ............................................................................................................................... 26
Sensor Monitoring .......................................................................................................................................................................... 27
Step Motor Control ......................................................................................................................................................................... 27
Relay Output ..................................................................................................................................................................................... 27
Compressor Communication Methods ...................................................................................................................................... 27
CAN Communications .................................................................................................................................................................. 27
RS-485 Communication ............................................................................................................................................................... 27
RS-485 Cable Specifications ......................................................................................................................................................... 29
CIM Circuit Grounding ..................................................................................................................................................................... 29
Environment and Application Boundaries ........................................................................................30
Environment Conditions, Storage and Operation ......................................................................................................................... 30
Compressor Pressure Limits .................................................................................................................................................................. 30
Maximum Design Pressure.............................................................................................................................................................. 30
Maximum Operating Pressure ....................................................................................................................................................... 30
Mains AC Input Supply Voltage and Frequency ........................................................................................................................... 30
Refrigerant Type ......................................................................................................................................................................................... 31
Drive Module Vibration .......................................................................................................................................................................... 33
Industry Approvals and Certifications ............................................................................................................................................... 33
M-AI-VT-001-EN Rev.C.1
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