SmartFan Multi SD Fan Speed Control for Telecom Cooling
SmartFan Multi SD Fan Speed Control for Telecom Cooling
SmartFan
Multi SD fan speed control and temperature alarm is designed for telecom cooling applications. Multi SD accepts and diode ORs dual power feeds in the range from 10 to 75 VDC. This telecom cooling solution can control 12, 24 or 48 VDC fans and operates at a high frequency to achieve maximum power efficiency. Fan speed control is based on temperature from up to three sensors and is applied using a common mode buck control circuit.
Multi SD is supplied with an optically isolated temperature alarm that is triggered if any sensor temperature reaches 10°C above the control temperature or if telecom cooling system power is lost.
In addition to the standard line of SmartFan fan speed control and alarm products, Control Resources also offers custom fan speed control design and manufacturing services to provide you with the optimum telecom cooling solution for your fan speed control applications.
Features - SmartFan Multi SD Fan Speed Control for Telecom Cooling
High
power efficiency: typically greater than 90%
Noise
reduction: typically 15 dB(A) or more at idle speed
Temperature
alarm output through optical isolator or MOS relay
Accepts
and diode ORs dual power feeds for telecom cooling applications
Soft
start and current limiting at start up
Accepts
temperature (thermistor) inputs from up to three OR'd
sensors and provides proportional fan speed control
Compatible
with TachScan fan speed alarms
Small
size of 1.5" X 5.0" permits mounting in small
spaces such as telecom cooling fan trays, etc.
Agency
approvals
Selectable Options - SmartFan Multi SD Fan Speed Control for Telecom Cooling
Jumpers
allow user selectable fan speed control settings of:
- 12,
24 or 48 VDC operation (maximum output is limited to input voltage)
- 35, 40 or 45°C Control Temperature
- 1, 2 or 3 temperature sensors
Accepts
temperature (thermistor) inputs from up
to three OR'd sensors and provides proportional
fan speed control to the fans
