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Rockwell Automation PowerFlex 755TM User Manual

Rockwell Automation PowerFlex 755TM
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4 Rockwell Automation Publication DRIVES-AT005D-EN-P - May 2022
Drives in Common Bus Configurations with PowerFlex 755TM Bus Supplies Application Technique
Sizing Shared Bus Supply AC Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Basic Sizing of the PowerFlex 755TL/TR AC Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Example Basic Sizing of the PowerFlex 755TL/TR AC Drive. . . . . . . . . . . . . . . . . . . . . 33
Advanced Sizing of the PowerFlex 755TL/TR AC Drive . . . . . . . . . . . . . . . . . . . . . . . . 34
Example PowerFlex 755TL/TR Shared DC Bus Advanced Calculation. . . . . . . . . . . . . 35
Chapter 4
Non-regenerative Bus Supply Configuration
Supported Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Typical System Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
General Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Precharge Interlocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Kinetix 5700 Servo Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Paralleling PowerFlex 755TM Non-regenerative Modules . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Sizing Non-Regenerative Bus Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Basic Sizing of the Non-Regenerative Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Example Basic Sizing of the Non-Regenerative Bus Supply . . . . . . . . . . . . . . . . . . . . 43
Advanced Sizing of the Non-Regenerative Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Example Advanced Sizing PowerFlex 755TM Non-regenerative Bus Supply
Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Chapter 5
Paralleling Two PowerFlex 755TM Regenerative Bus Supplies
System Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Supported Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Typical System Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Compatibility Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
General Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Precharge Interlocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Parallel Operation of Two PowerFlex 755TM Regenerative Bus Supplies . . . . . . . . . . . . . . 51
Load Sharing Two PowerFlex 755TM Regenerative Bus Supplies. . . . . . . . . . . . . . . . . . . . 52
AC Power System Resonance Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Kinetix 5700 Servo Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Sizing Bus Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Dynamic Bus Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Appendix A
Electrical Ratings, Recommended Protective Devices, and DC Bus Capacitance
AC and DC Circuit Protection Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Circuit Protection Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
PowerFlex 755TM Non-regenerative Supply, All Configurations . . . . . . . . . . . . . . . . . 54
PowerFlex 755TM Regenerative Bus Supply, Frame 6 . . . . . . . . . . . . . . . . . . . . . . . . . 55
PowerFlex 755TM Regenerative Bus Supply, Frame 7…15. . . . . . . . . . . . . . . . . . . . . . . . . . 55
PowerFlex 750-Series AC Drive, Frame 1…7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
PowerFlex 755TM Common Bus Inverter, Frame 8…15 . . . . . . . . . . . . . . . . . . . . . . . . 56
Kinetix 5700 Servo Drive, All Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
PowerFlex 755TL/TR AC Drives, Frame 5…6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
PowerFlex 755TL/TR AC Drives, Frame 7…15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

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Rockwell Automation PowerFlex 755TM Specifications

General IconGeneral
BrandRockwell Automation
ModelPowerFlex 755TM
CategoryDC Drives
LanguageEnglish

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