SmartFan® Cirrus

     Programmable Interface for Speed Controllable (PWM) Fans

Cirrus fan motor speed control

DC Fan Motor Speed Controller - Cirrus

 

Fig. 1: Cirrus Fan Motor Speed Controller #036BCT00-F with DIN350-F DIN rail mount kit (sold separately)

Fig. 2: Cirrus Fan Motor Speed Controller #036BCT00-F

Fig. 3: Cirrus Fan Motor Speed Controller #036BJT00-F with 4x4 Job Box (not supplied)


Cirrus Programmable Interface for Speed Controllable (PWM) Fans

Cirrus PWM controller is a compact, microprocessor based fan motor speed controller designed for the electronics, industrial and HVAC control markets. The Cirrus can automatically control most PWM circuit (4 wire) controllable 24 and 48 VDC fans used in applications such as: equipment cooling, humidity control, clean room pressurization, exhaust ventilators, duct fans & blowers. The Cirrus provides fan motor speed control from a 0-20mA control signal, 0-10VDC control signal, remote transducer or thermistor. On board programming and three mounting and connection configurations, including DIN rail mount and "4x4 job box" mount, make this fan control design extremely flexible and economical.

Benefits of using SmartFan Cirrus PWM controller for DC fan motor speed control include acoustical noise reduction, environmental (humidity, temperature, pressure or flow) regulation, greater system reliability, increased fan life, improved safety and energy savings.

Cirrus Programmable Interface for Speed Controllable (PWM) Fans - Product Features

  • DC Motor Speed control for one or two 24 or 48 VDC PWM circuit controllable fans.
  • Power source: 20 - 60 VDC (passed through to fan).
  • Settable PWM frequencies between 1000Hz and 10,000Hz.
  • Fan Control can be based on:
    • 0-20mA control signal
    • 0-10VDC control signal
    • Remote transducer (temperature, humidity, pressure, flow)
    • Remote thermistor (sold separately)
  • Isolated control inputs.
  • Temperature & loss of signal alarm.
  • Tach alarm with 3 selectable speed settings.
  • Remaining fan switches to full speed upon fan failure.
  • Potentiometer settable for:
    • Max and Min fan speeds
    • Max and Min control signal levels
    • 0-18VDC supply voltage to drive external transducer or alarm
  • Mounting Options: PCB mount, DIN Rail mount, 4x4 electrical job box cover mount.
  • RoHS compliant (6/6)

Cirrus Programmable Interface for Speed Controllable (PWM) Fans - Custom Options

  • PWM frequencies below 1000Hz and above 10,000Hz
  • Fused fan inputs
  • Hard coded control curve
  • Hard coded transducer supply voltage
  • On board thermistor
  • On board pressure transducer
  • NEMA 4X case
  • Connections: Terminal Block, Molex headers, 18 AWG wires
  • Sensors
Cirrus 4-wire PWM motor fan speed control dimensions

Fig. 4
Circuit board dimensions CRI # 036BCT00-F
Click on image for larger diagram



Cirrus 4-wire PWM motor fan speed control dimensions
Fig. 5
Electrical job box mount style CRI# 036BJT00-F
Click on image for larger diagram


Cirrus Programmable Interface for Speed Controllable (PWM) Fans - Part Numbering System

Cirrus Control Mode Configuration Connector Special Features
036 B = Current, voltage, temperature1, or remote transducer

C = Circuit Board only

J = Job Box Cover Mount
T = Terminal Block2

00-F = standard (RoHS)

xx = specials
DIN350-FDin Rail Kit

1. When used in the thermistor control mode, a sensor (sold separately) is required.
    Choose an air, surface or liquid temperature sensor from the CRI catalog or at www.controlres.com.
2. Maximum current rating is 10 Amps.

Stock Product
036BCT00-F (Fig. 2)

DIN Rail Option (Fig 1): Units supplied in circuit board form may be mounted on a DIN rail using DIN rail kit CRI #DIN350-F.

ADDITIONAL MANUAL PAGES

Use the links below for addtional manual pages or for a complete manual or click on the Operation/Installation Manual PDF link above.





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