Making High-Voltage Wiring Connections - PENN Controls - VFD68Bxx - VFD68Cxx - Three‐Phase Motor Speed Controller - VFD68 Three‐Phase Variable Frequency Drive

VFD68 Variable Frequency Drives (230 or 460 VAC) Installation Guide

PENN Controls
Product name
VFD68 Three‐Phase Variable Frequency Drive
Document type
Installation Guide
Part number
Document revision
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  1. Loosen the screws on the front cover and remove the cover to access the low-voltage wiring (Figure 1).
    Figure 1. Loosen the Cover Screws and Remove the Front Cover

  2. Remove the high-voltage wiring cover at the bottom of the VFD68 Drive (Figure 2).
    Figure 2. Remove the High-Voltage Wiring Cover

    Important: Use UL Listed copper, stranded wire with insulation rated at 75°C (167°F) for wiring in Step 3 and Step 4. See High-Voltage Wire Size and Maximum Wire Length.
  3. Connect the high-voltage power supply to terminals R/L1, S/L2, and T/L3 on the drive (Figure 3).
    Note: If three-phase power is not available as supply power for the VFD68 Drive, refer to the VFD68 Variable Frequency Drive Technical Bulletin (Part No. 24-7664-3051).
  4. Connect the motor wiring to high-voltage output terminals U, V, and W on the drive (Figure 3).
    Figure 3. High-Voltage Terminal Block Wiring

  5. Connect earth ground wiring to the earth ground terminals on the VFD68 Drive and on the motor.
  6. Replace the high voltage wiring cover.
    Note: When replacing the high-voltage cover, carefully space and position the leads through the vents or wire slots.