VFD Selection
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      How do I understand the Rockwell Automation VFD catalog part numbers?

      This guide helps you understand Rockwell Automation's part numbers, particularly for the PowerFlex 755TS variable frequency drive.

      📊 Understanding Rockwell Automation VFD catalog part numbers is crucial for ordering the correct components for industrial automation needs. Rockwell Automation uses prefixes to categorize products into families.

      • Positions 1 through 3 in the part number indicate that the drive is a PowerFlex 755, identified by '20 G'.
      • Position 4 defines options like corrosive gas protection and cooling type, with the 'XT' option for environments exposed to corrosive gases.
      • Position 5 is used to select the input voltage type and how the VFD connects to the input voltage source.
      • Position 6 determines the enclosure type, ensuring compatibility with the environmental NEMA rating.
      • Position 7 specifies the VFD’s voltage rating, based on the motor's nameplate voltage and input voltage of the drive.
      • Positions 8 through 10 define the drive’s current rating, including overload capabilities for both normal and heavy-duty ratings.
      • Position 11 is always "J".
      • Position 12 offers the option to include an internal IGBT for dynamic braking with external braking resistors.
      • Certain components, such as communication cards, safety cards, and human interface modules, are not included in the standard part number and must be ordered separately.

      This video offers a comprehensive guide to understanding Rockwell Automation's part numbers, particularly for the PowerFlex 755TS variable frequency drive. It explains the significance of prefixes and the 18-position base number, detailing how each position defines aspects like drive type, protection options, voltage and connection types, enclosure, and current ratings. The video also highlights the importance of knowing part number structures for compatibility and avoiding incorrect orders, and mentions additional components like interface modules and communication cards that may be required but are not included in the standard part number.