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Variable-Frequency Drive Training System



The Variable-Frequency Drive Training System is a state-of-the-art training system specifically designed to introduce students to the basic principles of variable-frequency drives (VFDs).

It provides a comprehensive, high-quality, and cost-effective solution to rapidly build student knowledge in VFDs and their motor applications. It is designed for portability and powered using a standard single-phase ac outlet. Through theory and hands-on exercises, the Variable-Frequency Drive Training System fully covers motor drives, three-phase induction motors, VFD operation with basic and advanced control functions, VFD load types and control methods, and VFD troubleshooting.

An optional exercise also covers the use of VFDs with programmable logic controllers (PLCs) and human-machine interfaces (HMIs), and combines the Variable-Frequency Drive Training System with the Advanced PLC Training System, Model 3355.

Features & Benefits

  • Fully introduces students to all the important concepts of both variable-frequency drives and three-phase induction motors.
  • Comprises a modern Allen-Bradley PowerFlex 525 drive designed for the control of industrial motors.
  • The variable-frequency drive, the induction motor, and all the electrical and control components are easy to access and safe for student experimentation.
  • Powered using a standard single-phase ac outlet. Control components operate at a low voltage for student safety.
  • Includes six built-in faults that can be inserted using toggle switches, enabling students to test and improve their troubleshooting skills.
  • Training system enclosed in a rugged case fitted with sturdy wheels and a telescopic handle for easy transportation. The case also allows training systems to be conveniently stacked for storage.
  • Comprises student and instructor manuals that provide comprehensive theory presentations, guided easy-to-understand lab procedures, and review questions.
  • Complete, cost-efficient learning package
  • Estimated program duration: 20 hours

Topic Coverage

  • Motor drives
  • Three-phase induction motor characteristics and operation
  • VFD characteristics and operation
  • VFD control circuits and advanced functions, such as acceleration and deceleration, motor braking, jogging, and protection
  • VFD load types and control methods
  • VFD installation, maintenance, and troubleshooting
  • Optional exercise about VFD operation with programmable logic controllers (PLCs) and human-machine interfaces (HMIs)


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