Simple and versatile adjustable speed control

Ideal for replacing obsolete eddy current controls

The DSI-700 is an analog, high-quality, high-performance, universal Eddy Current drive controller. DSI-700 has been designed to provide excitation for any brand Eddy Current drives as well as replace many existing older and obsolete Eddy Current Drive controllers manufactured by other.

The DSI-700 provides 5.5 amps DC maximum output with adjustable and selectable output voltages from 45 to 180 VDC. The DSI-700 may be used with drives ranging from the Fractional Horsepower (FAS) of drives from 1⁄4 to 1-1⁄2 HP, to the complete Ajusto-Spede® AS brand of integral motor-clutch drives from 1-40 HP, as well as the full line of Ajusto-Spede® AT brand drives up to 200 HP. These controllers also provide excellent sources for the Eddy Current Brake series such as the Dynamatic AS-700 brakes.

The DSI-700 is offered in an Original Equipment Manufacturers’ (OEM) package as a basic, central control unit to provide maximum performance at the lowest possible price.


  • Single circuit board construction with integral heat dissipater for the power components.
  • Only the topside of the circuit board is populated, using hybrid surface-mount as well as through-hole technologies.
  • Board is conformably coated to protect components from damage in harsh environments.
  • May be mounted to a substrate panel using four (4) standoff insulators and mounting screws, provided in a plastic pouch. This allows for easy Integration into larger systems with the addition of the appropriate supporting controls such as starters, switches, and interlocks, on/off controls as required.

Dynamatic® DSI-700 Eddy Current Control

  • Improved speed regulation

  • Motor current limit for press drives (standard)

  • Selectable input voltage 115/230 VAC single phase 50 Hz or 60 Hz

  • Selectable/adjustable 45 VDC to 180 VDC output voltage

  • Single PC surface mount construction with low-component count

  • Compact size 7.5” x 6”

  • CUL approved and CE tested

  • Conformal coating for harsh environments and overall reliability

  • Interchangeable with other obsolete Eddy Current controllers

  • Factory setting for easy start-up

  • 24-hour emergency service and support

  • Low cost superior performance

  • 0-10 VDC, 4-20 mA input (standard)

Dynamatic® DSI-700 Eddy Current Control