052S4401T16-F Control Resources

The driving force of motor control & electronics cooling. SmartFan Multi SR Speed Control and Alarm for DC Fans SmartFan Multi SR is a digital fan FEATURES speed control and alarm that offers an off- Accepts and diode ORs dual power feeds the-shelf cooling solution for Includes soft start and current limiting at start up telecommunications applications. Multi SR Supplies voltage to up to six 24 VDC or 48 VDC fans accepts and diode ORs dual power feeds Jumpers allow user selectable settings of: in the range from 36 to 75 VDC. Multi SR Control temperature Fan alarm trigger speed can control to up to six 24 or 48 VDC 24 or 48 VDC operation fans and operates at a high frequency to Isolated on-board power for I2C achieve maximum power efficiency at Accepts temperature (thermistor) inputs from up to three ORd sensors and minimum size. Fan speed control can be provides proportional speed control to the fans based on temperature, control signal Speed control can also be based on accepting control signals (PWM, DC) or (PWM, DC) or I2C bus. Voltage to the via an I2C bus fans is varied using a current mode Maximum voltage applied to fans is regulated at 25 VDC for 24 volt fans and buck/boost control circuit. Multi SR 50 VDC for 48 volt fans monitors tach pulses from the fans and When used with 48 VDC fans, a boost circuit provides voltages greater than the supply voltage when the supply voltage drops below 48 VDC provides ORd outputs to drive LED, logic Monitors open collector or voltage source tach pulses from the fans and and audible alarms. Communication of provides ORd outputs to drive LED, logic and audible alarms cooling system status is provided via an Additional alarm outputs are provided for multiple failure conditions, over I2C bus. Designed with versatility in mind, temperature conditions, sensor failure, microcontroller failure and loss of power Multi SRs control and alarm parameters to the Multi SR can be modified via on-board jumpers Provides communication of cooling system status via an I2C bus and FLASH microcontroller programming. Narrow 1.50 width of the board allows for mounting in fan trays as thin as 1U (1.75 ) high RoHS (6/6) Compliant UL Recognized to UL508 and CSA-C22.2, File E100344 SPECIFICATIONS Supply Maximum Maximum Input Current Voltage Output Voltage Output Current 200 Ft/Min Still Air Range to any Fan 24 or 48 VDC 36 to 75 VDC 4.0 Amps 4.0 Amps 5.0 Amps (jumper selectable) CONTROL RESOURCES INCORPORATED www.controlresources.com 2013 (02) Page 1 of 11 DC Controls SmartFan Multi SR PART NUMBERING SYSTEM Number of Special Current Control 3.3/5.0 VDC Multi SR Temperature Control Mode Fans RoHS 1 Rating Temperature Isolated Power Features Sensors 052S 4 = 4 Amps 40 = 40C 3 = 3 Sensors T = Temperature 0 = No On Board 1 = 1 Fan X -F 2 (5 Amps in Based Control Isolated Supply MED Control 2 = 2 Sensors 2 = 2 Fans 200 LFPM Temp. I = I2C Based 1 = On Board 1 = 1 Sensor 3 = 3 Fans air stream) Control Isolated Supply B = 1 On Board 4 = 4 Fans P = PWM/Voltage Sensor 5 = 5 Fans Based Control 0 = No Sensors 6 = 6 Fans H117-F Hardware Pack 1 55C, still air, max current rating. 2 Sensor required for 1, 2 or 3 Sensors. See sensors page. CONTROL RESOURCES INCORPORATED www.controlresources.com 2013 (02) Page 2 of 11