Naval Steering and Diving Control Actuation System (SDCAS)

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 speed听
BLDC motor provides highly reliable, acoustic sensitive actuation听
Failsafe options are customizable for specific applications听
Output shaft lock solenoids available听
Pressure compensated housings available for application specific depth requirements听
Multiple position feedback options available, including redundant options

Key Controller Features

Integrated power supply customizable for various input power听
Multiple fieldbus communication protocols available听
Position, velocity, or torque loop closure options听
Customizable switching frequencies and communication baud rate听
Customizable failsafe options for communications loss听
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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Features	Specifications
Stroke	卤 30掳听
Stall Torque	>500 in-lbs.
No load speed	&驳迟;20掳/蝉
Loaded speed	>15掳/s @ 300 in-lbs.
Rated power	0.012 HP
Peak motor current	0.7 A
Actuator weight	19 lbs.听
Max braking torque (wave slap)	1000 ft-lbs.
Operating temperatures	28掳 - 85掳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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Features	Specifications
Supply voltage	8 鈥� 300 VDC
Communications interface	Multiple options
Position feedback	Resolver, encoder, HED听
Controller weight	~33 lbs.
Operating temperatures	28掳鈥� 85掳F听
Pressure rating	>5000 ft