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Naval Steering and Diving Control Actuation System (SDCAS)

101-85-1-NAVAL-STEERING-AND-DIVING-CONTROL-ACTUATION-SYSTEM-(SDCAS)-grey-bckgrd-700x400.psd

The Steering and Diving Control Actuation System (SDCAS) controls the four (4) main control surfaces, or fins, of an unmanned underwater vehicle (UUV). The system receives digital commands over a serial bus (multiple protocols are available) and power from either AC or DC bus power. SDCAS drives each fin to the master controllers commanded position independently. The system also outputs various system monitor parameters, warnings, and faults. This includes motor temperatures, fin lock status, bus current and voltage, and communication status with each actuator.

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Key Actuator Features

  • Customizable output torque, slew angle, and speedÌý
  • BLDC motor provides highly reliable, acoustic sensitive actuationÌý
  • Failsafe options are customizable for specific applicationsÌý
  • Output shaft lock solenoids availableÌý
  • Pressure compensated housings available for application specific depth requirementsÌý
  • Multiple position feedback options available, including redundant options

Key Controller Features

  • Integrated power supply customizable for various input powerÌý
  • Multiple fieldbus communication protocols availableÌý
  • Position, velocity, or torque loop closure optionsÌý
  • Customizable switching frequencies and communication baud rateÌý
  • Customizable failsafe options for communications lossÌý
  • Multiple feedback device options available
101-86-1-NAVAL-STEERING-AND-DIVING-CONTROL-ACTUATION-SYSTEM-(SDCAS)-grey-bckgrd-700x400.psd

Actuator Performance Summary

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FeaturesSpecifications
Stroke± 30°Ìý
Stall Torque>500 in-lbs.
No load speed&²µ³Ù;20°/²õ
Loaded speed>15°/s @ 300 in-lbs.
Rated power0.012 HP
Peak motor current0.7 A
Actuator weight19 lbs.Ìý
Max braking torque (wave slap)1000 ft-lbs.
Operating temperatures28° - 85°F
Pressure rating>5000 ft
101-87-1-NAVAL-STEERING-AND-DIVING-CONTROL-ACTUATION-SYSTEM-(SDCAS)-grey-bckgrd-700x400.psd

Controller Performance Summary

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FeaturesSpecifications
Supply voltage8 – 300 VDC
Communications interfaceMultiple options
Position feedbackResolver, encoder, HEDÌý
Controller weight~33 lbs.
Operating temperatures28° – 85°FÌý
Pressure rating>5000 ft

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