AC Drivers/Controllers/VFDs
AC Speed Controller

Anaheim Automation offers a large selection of AC Speed Controllers that are priced with OEM applications in mind. These AC Motor speed controllers come in wide variety of power ranges from 6 watts to 536 HP.

ACSD050 - The ACSD050 offer a simple control for Universal, shaded pole, and split-phase motors. ACSD050 series has a compact package that can easily fit into existing systems. The ACSD050 matches with well with universal type motors. The ACSD050 features quick disconnects for easy removal and maintenance.

ACP-US - The ACP-US series is a driver and motor combo that provides closed loop speed operation. It also provides a large LED display for monitoring motor RPM. ON/OFF switch easily provides the user to stop and run the motor when needed.

VFDxxxCP43A-21 - The VFDxxxCP43A-21 series offers simple, powerful, and cost-effective open-loop speed control. These Variable Frequency Drives (VFDs) are available with input voltages of 230V and 460V, capable of powering AC motors from 0.7 to 400Kw (1 to 536HP). Ideal for fans, pumps, and other light and normal duty applications these VFDs have a variety of different features that allow for compatibility with almost any AC motor!


  • Input Range: 110VAC or 220VAC
  • Max Power: 25W to 200 Watts
  • Closed Loop Operation Available
  • RPM Display Available
  • Simple, Cost-Effective Design
  • Small package designs
  • Covers a wide range of motor applications
  • Customization Is Available
  • Input Range: 230 or 460VAC
  • Max Power: 1 to 536 Horsepower
  • Open-Loop Speed Control
  • Detachable LCD Keypad Offers a User-Friendly Operation Interface
  • Advanced Network Functions Built-In: RS485, BACnet and MODBUS
  • Modular Design for Flexible Extension and Ease-of-Maintenance
  • Greatly Improve Efficiency of Variable Torque and Constant Horsepower Load Applications
  • Excellent for Fan and Pump Applications
Fundamentals of AC Drivers/Controllers
  • AC Drivers And Controllers - Advantages and Disadvantages
  • AC Drivers And Controllers - Applications
  • AC Drivers And Controllers - Basics
  • AC Drivers And Controllers - Components of AC Drivers And Controllers
  • AC Drivers And Controllers - History
AC Drivers And Controllers Advantages and Disadvantages
Advantages of AC Drivers And Controllers

• Increases the life of the motor due to high power factor
• Economical speed control
• Optimize motor-starting characteristics
• Lower maintenance than DC control

Disadvantages of AC Drivers And Controllers

• Generate a large amount of heat and harmonics
AC Drivers And Controllers Applications
AC Drivers And Controllers can be used in many different industrial and commercial applications. Most often used to control fans in air conditioning and heating systems, the AC Drivers And Controllers allow for more control of the airflow. The AC Drivers And Controllers also aid in adjusting the speed of pumps and blowers. More recent applications include conveyors, cranes and hoists, machine tools, extruders, film lines, and textile-fiber spinning machines.
AC Drivers And Controllers Basics
AC Drivers And Controllers are known as the equipment that controls the speed of the AC Motor. AC Drivers And Controllers can also be referred to as a variable frequency drivers and controllers, adjustable speed drivers and controllers, frequency converter, etc. The AC Motor receives power, which is ultimately converted by the AC Drivers And Controllers into an adjustable frequency. This adjustable output allows the motor speed to be precisely controlled.
Components of AC Drivers And Controllers
Typically, AC drivers and controllers consist of three basic parts: the rectifier, and inverter, and a DC link to connect the two. The rectifier converts AC input into DC (direct current), while the inverter switches the DC voltage to an adjustable frequency AC output voltage. The inverter can also be used to control output current flow if needed. Both the rectifier and inverter are directed by a set of controls to generate a specific amount of AC voltage and frequency to match the AC motor system at a given point in time.
AC Drivers And Controllers History
Nikola Tesla invented the first AC Induction Motor in 1888, introducing a more reliable and efficient motor than the DC motor; however, AC speed control was a challenging task. When precise speed control was required, the DC motor became a replacement for the AC motor, because of its efficient and economical means of controlling speed accurately. It wasn’t until the 1980’s that AC speed control became a competitor. Over time, AC Drivers And Controllers technology eventually transformed into an inexpensive and reliable competitor to the traditional DC control. Now, AC Drivers And Controllers are capable of speed control with full torque attained from 0 RPM through the maximum rated speed.
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