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SmartFan® Cirrus-6
Digital Fan Speed Control and Alarm
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Cirrus-6 PWM Fan
Speed Control & Alarm for 4-Wire Fans
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SmartFan Cirrus-6 Fan Speed Control and Alarm for 4-Wire Fans |
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SmartFan Cirrus-6 is a digital fan speed control and alarm that offers an off-the-shelf cooling solution for 4-wire DC fans and blowers. Cirrus-6 can control and monitor tach pulses from up to six 12, 24, or 48 VDC fans. The controller accepts fan speed control commands (including on/off) and provides individual pass/fail fan status via an I2C interface.
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The I2C interface also provides temperature readings from an on-board thermistor and EEPROM storage. The Cirrus-6 can be configured for fan speed control based on temperature or analog control signal (PWM, 5.0 VDC). Configuration of the Cirrus-6 is settable via I2C inteface or options can be set at the factory to your specifications.
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Features / Options - SmartFan Cirrus-6 Fan Speed Control and Alarm for 4-Wire Fans |
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- Power feed options:
Single
Dual diode OR'd (positive, negative, both)
- Control fans with open collector or 0-12 VDC control signal requirements:
- Fan speed based on:
I2C interface (single or dual)
Temperature at an on-board or remote thermistor
Analog control signal (PWM, 5.0 VDC)
- Single or dual I2C interface capability:
Set fan speed control based on temperature or I2C commands
Write fan speed commands (including on/off)
Read pass/fail status for each fan
Read temperature readings from an on-board thermistor
Allow access to EEPROM storage
- Monitors open collector or voltage source tach pulses from the fans and provides pass/fail status for each fan through the I2C interface, LED and CMOS outputs
- Compatible with SmartFan Multi SD for telecom 10-75 VDC dual feed buck regulator applications
- Optional individual fan fusing
- Sensors
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Specifications - SmartFan Cirrus-6 Fan Speed Control and Alarm for 4-Wire Fans |
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- Power
source: 10 to 60 VDC, single or dual feed
- Current Rating: 6 Amps @ 60°C or less
- Power source is fused with reverse polarity protection
- Fans: Up to six 12, 24, or 48 VDC 4-wire fans
- On-board 3.3 / 5.0 VDC isolated power for I2C and control signal interfaces
- Storage temperature: -40°C to 125°C
- Operating temperature: -20°C to 60°C
- Temperature accuracy and hysteresis: 2°C
- Weight: 1.9 oz (54 grams)
- RoHS (6/6) compliant
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Cirrus-6 dimensions: |
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Part Numbering - SmartFan Cirrus-6 Fan Speed Control and Alarm for 4-Wire Fans |
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| Part Number |
Fan Control Signal |
4WR6C00-F
4WR6V00-F
H125-F
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Open Collector PWM
0-12 VDC PWM
Hardware Pack |
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When used in the temperature
or transducer (5.0 VDC) control mode, a sensor (sold separately) is required.
Choose an air, surface or liquid temperature sensor
or humidity sensor from the CRI catalog or via your
own transducer.
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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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