Varispeed 240 DC Motor Control

Varispeed 240 (Updated Version)

The Varispeed 240 is compact, rugged, reliable and flexible. Available in 1/8 - 3 HP control rating configurations, the VariSpeed 240Series incorporates surface mount technology to reduce package size and improve reliability.  

  • Compact, extremely rugged speed drive for standard permanent magnet or would-field DC motors
  • 120 or 240 VAC line input
  • Nine models rated for 1/8 to 3 HP
  • Available in chassis, NEMA 12 
  • LED status indicators for Power On, Run, and Current Limits
  • Chassis units are UL and cUL listed


 Horsepower Range 1/8 - 1 (120V); 1 - 3 (240V) 

 Line Voltage 120/240; 1 phase 


 Armature Voltage (VDC)0 - 90 (120V); 0 - 180 (240V) 

 Field Supply (VDC)50/100 (120V); 100/200 (240V) 

 Speed Range: 

  Armature Feedback 50:1 at full torque 

 Tachometer Feedback 200:1 at full torque 

 Speed Regulation: 

 Armature Feedback±2% of base speed (for 95% load change) 

 Tachometer Feedback±1/2% of set speed (for 95% load change) 

 Ambient Temperature :  104 ºF (40 ºC) enclosed;  131 ºF (55 ºC) 


Control Adjustments: 

 Minimum Speed 0 to 50% control rating 

 Maximum Speed 50 to 110% control rating 

 Range (% control rating)isolation optional 

Acceleration 0.5 to 5 seconds 

Deceleration 0.5 to 5 seconds 

IR Compensation Adjustable (0-25% of rated output) 

Current Limit 10-150% control rating


Process Signal Input Optional 

Tachometer Feedback 20.8 V/1,000 RPM 

Tachometer Follower Optional 

Process Output Optional, speed follower 

Potentiometer 5K ohm, 1W potentiometer  

Reference Supply Voltage 10 Volts 

Status Indicator LEDs for Power On, Run and Current Limit Status 

UL/cUL Listed Chassis configurations only 

Varispeed 240 Dimensions

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Varispeed 240 Manual

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