Variable Speed DC Drive

Variable Speed DC Drives ER-3200i / ER-3600XRi

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Product Description

Variable Speed DC Drive

  • Armature Current: 4Amp – 48Amp
  • 1 quadrant power ratings
  • 2.2kW-11kW @320V dc
  • 4 quadrant power ratings
  • 1.1kW-9.5kW @320V dc
  • Can be used in speed or current control modes
  • CE, CSA, UL and cUL approved

The units employ closed loop control of both armature and feedback voltage to give precise control of the motor torque and speed.


Thermally protected: The motor and drive are thermally protected by a stall timer which automatically removes power after 30 seconds if the required speed cannot be achieved.

High short term torques up to 30 secs: The drives will provide up to 150% of the preset current for up to 30 seconds enabling high short term torques during acceleration etc.

Over speed /over current protection: Independent control of either the current or speed loops by external inputs enables torque or speed control applications with overspeed or over current protection.

The demand signal may derive from a potentiometer, 0-10V or 4-20mA. The speed feedback signal may be selected to be the Armature voltage or a shaft mounted Tachometer.

  • Extruders
  • Pumps & Fans
  • Printing press
  • Paper machines
  • Machine Tools
  • Mixers
  • Calenders
  • Winders
  • Unwinders
  • Conveyors
  • Rolling Mills
  • Test Rigs
  • Wire & Cable
  • Rubber Mixers
  • Textile Machinery
  • Cranes & hoists