Rockwell Automation Publication 750-RM004A-EN-P - April 2018 17
Selection Considerations Chapter 1
About the PowerFlex 755T
The PowerFlex 755T products with TotalFORCE™ control, catalog code
20G…, is available in five different power rating frame sizes (frames 8…12).
Four different input configurations:
• 755TL standalone 3 PH, AC input low harmonic non-regenerative
drive
• 755TR standalone 3 PH, AC input low harmonic regenerative drive
• 755TM common bus inverter (DC input with precharge)
• 755TM common bus inverter (DC input without precharge)
Eight different input voltages;
• 400V AC/540V DC
• 480V AC/650V DC
• 600V AC/810V DC
• 690V AC/932V DC
And three different packaging methods;
• IP00 open
• IP21 Rittal
• IP54 Rittal
PowerFlex 755TM common bus inverters packaged in IP20/IP54 enclosures
have power/control bus bar systems that are mechanically and electrically
compatible with PowerFlex 755TM Bus Supplies and similarly enclosed
PowerFlex 755-Series AC drives. A transition bay is required if connecting a
755T product to existing 755-Series drives.
IMPORTANT To achieve PowerFlex 755T motor control regulator performance equal to or
greater than the PowerFlex 700S, it is highly recommended that you select
the motor voltage feedback Torque Accuracy Module (TAM), control option
code (-C0).
IMPORTANT If you have DC input PowerFlex 700S drives, it is important to understand if
precharge circuits are used. See the DC Input Inverter Considerations
on
page 21 for more information.
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