pwm-fan-controller-cirrus-2

PWM Fan Controller, SmartFan® Cirrus-2

  • PWM Fan Controller for one or two 4 wire DC fans or blowers
  • Control Signal Options: 0-10VDC, 0-20mA, transducer, thermistor
  • Easy programming via Navigator Programmer
  • Factory Customization for Orders as Low as 50 Pieces
Operation / Installation PDF

Cirrus-2 Datasheet

SmartFan® Cirrus-2 is a programmable fan controller designed to monitor and manage one or two 12, 24 or 48VDC PWM 4 wire fans or blowers.  The Cirrus-2 fan controller is easily programmed using the Navigator PRG00-F handheld remote programmer, removing the expense of a display and keypad from each fan control unit.  Using the Navigator, one can customize the fan control curve, alarm thresholds, fan ON/OFF thresholds, control signal inputs, fan frequency, optional transducer supply voltage, fail-safe modes and more.  Factory programming and customization available for orders as low as 50 pieces. 

For other off-the-shelf DC fan controls visit SmartFan® DC.  As no product line can anticipate all applications, Control Resources also specializes in design and manufacture of custom controls.

Specifications Programming Variables
  • » Power source: 10-60VDC
  • » Current Rating: 10 Amps
  • » Fans: Up to two 12,24,48VDC open collector PWM or 0-12VDC PWM speed controllable
  • » Includes 0-18VDC supply to drive a transducer
  • » Din Rail mounting option
  • » Environment: -25°C to 70°C, RH95% non-condensing
  • » Weight: 1.6 oz. (46 grams)
  • » RoHS (6/6) compliant
  • » Isolated control signal options: 
  • » Max and Min control signal
  • » Max and Min fan speeds
  • » Fan ON /OFF threshold
  • » Optional transducer supply voltage
  • » PWM fan frequency: 2.5, 5,10,20kHz
  • » Fan speed (tach) alarm threshold
  • » Temperature alarm threshold
  • » Loss of control signal alarm

SmartFan Cirrus 2 PWM Fan Controller Dimensions

Cirrus-2 Dimensions

For CAD drawings, use the links in Additional Information below.

SmartFan Cirrus 2 PWM Fan Controller Part Numbers

Part Number Fan Control Signal
4WR2C00-F Cirrus 2 (for open collector PWM fan) 
4WR2V00-F Cirrus 2 (for 0-12 VDC PWM fan)
PRG00-F Navigator Remote Programmer
DIN350-F Optional DIN Rail Mounting Kit (click for dimensions)
Remote Temperature Sensors Remote temperature sensors sold separately

Additional Information

» Cirrus-2 Operation / Installation Datasheet (PDF)
» Navigator Remote Programmer Datasheet (PDF)
» Cirrus-2 IGS CAD drawing (.igs)
» SmartFan Price List (PDF)
» Click here for Questions or Comments

To talk to an Engineer or Service Representative, call (978) 486-4160 (9:00 AM – 5:00 PM EST)

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Initially designed for our own engineering lab, CRI also offers versatile, low cost test equipment for test benches, laboratories, field work and repair facilities.