SmartFan® Multi SD
Digital Fan Speed Control and Alarm
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Fan speed and temperature controller board
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SmartFan Multi SD Digital Fan Speed Control and Alarm |
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SmartFan
Multi SD is a new generation fan speed control and temperature alarm cooling solution designed for DC fans and blowers. Multi SD fan control accepts and diode ORs dual power feeds in the range from 10 to 75 VDC. This OEM control cooling solution can control 12, 24 or 48 VDC fans and operates at a high frequency to achieve maximum power efficiency at minimum size. Fan speed control is based on temperature at up to three temperature sensors. Voltage to the fans is varied using a common mode buck control circuit.
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Multi SD is supplied with an optically isolated temperature alarm, triggered if sensor temperature reaches 10°C above control temperature or if cooling system power is lost.
In addition to the standard line of SmartFan controls and alarms, Control Resources also provides custom control design and manufacturing services to provide you with the optimum cooling solution for your OEM control applications.
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Product Features - SmartFan Multi SD Digital Fan Speed Control and Alarm |
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- 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
- Soft
start and current limiting at start up
- Accepts
temperature (thermistor) inputs from up
to three OR'd sensors and provides proportional
speed control to the fans
- Compatible
with SmartFan TachScan-3 and
TachScan-9 fan speed alarms
- Small
size of 1.5" X 5.0" permits mounting in
small spaces with in fan trays, etc.
- Agency
approvals
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Selectable Options - SmartFan Multi SD Digital Fan Speed Control and Alarm |
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- Jumpers
allow user selectable 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
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Specifications - SmartFan Multi SD Digital Fan Speed Control and Alarm |
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| Part Number1 |
Supply Voltage Range |
Maximum Watts to Fans3
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Isolated Temperature
Alarm Sinking Current |
| 200 Ft/Min |
Still Air |
| 042D4402 |
10 to 75 VDC |
240 Watts/5.0 Amps |
192 Watts/5.0 Amps |
1 mA |
| 042D440R2 |
100 mA |
| H118-F |
Hardware Pack |
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1. Part numbers above are RoHS 5/6 (contains lead) compliant. For full 6/6 compliance add a "-F" suffix to the part number.
2. Temperature sensor required. See sensors page.
3. Air temperature of 55°C or less. See Derating Curve page for derating above 55°C.
U.S. Patents 4,659,290, 4,722,699 and 5,364,026
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