Cycletrol 240

Cycletrol 240 (Updated Version)


  • All Cycletrol digital logic inputs are optically isolated.
  • Versatile logic allows direct interfacing with switches and push-buttons or solid state devices.
  • LED function lights are easy-to-see indicators of control status.
  • Transient protection by voltage clamping MOV's and RC networks protect power components against power spikes.
  • Torque limiting by the Cycletrol's adjustable current limit provides motor and drive train protection in the event of machine overloads or jams.
  • Heavy-duty aluminum chassis or NEMA 12 enclosures.

The Cycletrol 240 is the fastest cycling DC motor control in the industry. On-board logic controls reduce costly external relays and timing circuits. The 240's reliability is exemplified by a two-year warranty.

  • Cycle rate up to 60 cpm allows quick, repetitive run/stop operation with cycling duty permanent magnet motors.
  • Wide speed range with full torque available down to 9 rpm.
  • Integral timer enables automatic cycling; eliminates external components and wiring.
  • Start-up current (up to 400%) provides extra starting torque for fast acceleration.
  • Solid-state dynamic brake circuit for faster response without the wear normally associated with a mechanical system.
  • Magnetic circuit breaker standard on NEMA 12 enclosure models.


 Horsepower1/8 - 1 hp (120 VAC)  1/8 - 3 hp (240 VAC)

Line Voltage

120 V 240 V


50/60 Hz



Maximum Duty Cycle

60 cycles/minute continuous with typical 1/8 to 1 HP motor; 30 cpm with 1/2 to 3 HP motor. Reflected load inertia does not exceed motor inertia.

Output - Armature Voltage

0 to 90 VDC (120 VAC)  0 to 180 VDC (240 VAC)


Chassis, NEMA 12

Speed Range (Armature Feedback)


Speed Range (Tachometer Feedback)


Speed Regulation (Armature Feedback)

± 5% of base speed

Speed Regulation (Tachometer Feedback)

±0.5% of set speed or 4 rpm (whichever is greater)

Speed Variation (Due to Line Voltage Fluctuation)

<1% armature voltage change within input power range

Speed Variation (Due to Thermal Drift)

<3% for control; motor depends on application

Ambient Temperature

32 to 104 ºF; 0 to 40 ºC (NEMA 12)  32 to 122 ºF; 0 to 50 ºC (chassis)

Control Adjustments (Minimum Speed)

0 to 50% of full base speed

Control Adjustments (Maximum Speed)

50% to full base speed

Control Adjustments (Acceleration)

Fixed at 0.2 seconds

Control Adjustments (Current Limit)

0 to 125% control rating (up to 400% during acceleration)

Inputs (Logic Input)

Start, Stop, Jog, Reset, Override Stop, Timer

Inputs (Analog Speed Inputs)

5K ohm, 1 watt, potentiometer supplied with controls in an enclosure only. Isolated process signal of 0-10 VDC, 4-20 mA may be used.

LED Indicators

Power, Run, Current Limit, Brake  


Dimensions and Wiring Schematic