SmartFan®Multi SD
Fan Speed Control for DC Fans
SmartFan Multi SD Fan Speed Control for Telecom Cooling
SmartFan Multi SD Fan Speed Control for Telecom CoolingOperation/Installation Manual
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.
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 - Sensors
Specifications – SmartFan Multi SD Fan Speed Control for Telecom Cooling
| Part Number1 & 2 | Supply Voltage Range | Maximum Watts to Fans3 | Isolated Temperature Alarm Sinking Current |
||||
| 200 Ft/Min | Still Air | ||||||
| 042D440-F | 10 to 75 VDC | 240 Watts/5.0 Amps | 192 Watts/5.0 Amps | 1 mA | |||
| 042D440R-F | 100 mA | ||||||
| H118-F | Hardware Pack | ||||||
1. Part numbers above are RoHS 6/6 compliant.
2. Temperature sensor required. See sensors page.
3. Air temperature of 55°C or less.
Manual Pages – SmartFan Multi SD Fan Speed Control for Telecom CoolingOperation/Installation Manual
Use the links below for addtional manual pages or for a complete manual or click on the Operation/Installation Manual PDF link above.
