ecm motor controller ec fan control

SmartFan® Cirrus-ECM – EC Motor Speed Control

  • Programmable Controller for your ECM Motor

  •    Control Signal Options: 0-10VDC, 0-20mA, Transducer, Thermistor
  •    EC Motor Control for Under $10 per Motor in Volume
  •    Factory Customization for Orders as Low as 50 Pieces
Operation / Installation PDF

Cirrus-ECM Datasheet

SmartFan Cirrus-ECM can be used to control one or two EC motors that accept an open collector PWM or 0-12VDC PWM control input. Motor speed is regulated based on a control signal input (0-10 VDC, 0-20mA, remote transducer or remote thermistor). When using a transducer, the Cirrus-ECM can be used to power the transducer up to 18VDC.  The Cirrus-ECM motor controller also includes an alarm output indicating motor failure, over temperature or loss of control signal.  The alarm signal can be used to power a relay or LED.  Control settings including: idle speed, full speed, motor off, alarm trip points and more can be programmed using the SmartFan Navigator or can be configured at the factory for orders as small as 50 pieces.

The SmartFan Navigator PRG00-F menu driven remote programmer can be used to customize any number of Cirrus-ECM controls and can also be used to copy programs from one unit to the next. With 12 programmable variables, the Navigator is one powerful tool. Remote programming provides the ease of menu driven programming while removing the overhead for each control unit and as the Cirrus-ECM cannot be programmed without the Navigator, tampering is never a problem. The Navigator is available for rent or purchase.

Specifications Features / Selectable Options
  • » Power source: 24 VAC (+/- 10%)
  • » Motors: One or two ECM motors
  • » Four settable PWM frequencies between 80 Hz, 2.5 kH, 10 kHz & 20kHz
  • » Controls motors from four control input options:
    • – 0-20mA control signal
    • – 0-10 VDC control input
    • – Remote transducer (temperature, humidity, pressure, flow)
    • Remote thermistor (sold separately)
  • » Operating temperature: -25°C to 70°C
  • » Storage temperature: -40°C to 125°C
  • » Relative Humidity: 95% non-condensing
  • » Weight: 1.4 oz. (40 grams)
  • » RoHS (6/6) compliant
  • » Mounting options: PCB mount or DIN Rail mount
  • » Tach alarm with 3 selectable alarm trigger speed settings
  • » Remaining motor can be switched to full speed upon a motor failure
  • » Motor failure, temperature & loss of control input signal alarm
  • » Hard coded or programmable parameters include:
    • – Max and Min motor speeds
    • – Max and Min control signal
    • – Motor off setting
    • – Alarm trip setting
    • – 0-18VDC supply voltage to drive external transducer or alarm
  • » Compatible with Open Collector PWM and 0-12 VDC PWM controllable ECM motors.

SmartFan Cirrus-ECM – EC Motor Speed Control Dimensions


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

SmartFan Cirrus-ECM – EC Motor Speed Control Part Numbers

Part Number Fan Control Signal
ECM2C00-F Open Collector PWM
ECM2V00-F 0-12 VDC PWM
DIN350-F Optional DIN Rail Mounting Kit (click for dimensions)
PRG00-F Navigator Remote Programmer

Additional Information

» Cirrus-ECM Operation / Installation Datasheet (PDF)
» Cirrus-ECM STEP CAD drawing (.step)
NOTE: If the CAD file opens as a new browser window with text, right click the link, select “Save Link As”, and select a local folder to save the file.
» SmartFan Price List (PDF)
» Navigator Remote Programmer
» 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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