Modular Control Electronics Unit
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Overview:
Existing three-card or five-card slot enclosures can be used to accommodate and provide the following controller applications:
- Electromechanical (EM) Actuation
- Electrohydraulic (EH) Actuation
- Electrohydrostatic (EHA) Actuation
- Communication Converter
- Electric Power Subsystem Control
- Hydraulic Power Subsystem Control
- Power Distribution
- Battery Management Control
- Main Engine Fluid Control
- Propellant Management System Control
- Roll Control System
The CEU is also extensible to the following with new circuit card assemblies (CCAs):
- Flight Computer
- Data Acquisition Package
- Stage Interface Unit
- Solid Motor Ignition
Logic Processing Unit Card
- Large FPGA for logic implementation
- 4 LVDT/RVDT/Resolver Interfaces
- RS-422 Comm. Interface
Fluid Sensors and Controls Interface Card
- 16 Pressure Sensor Interfaces
- 8 Temperature Sensor Interface
- 2 Solenoid Drivers
- 2 Servovalve Drivers
Communication Card
- 4 RS-422 Comm. Interfaces
- 2 Analog Comm. Interface
- Telemetry Only RS-422
- 3 Cross Channel Data Links
- 1 MIL-STD-1553B Redundant Comm. Interface
- 16 Generic Digital Inputs
- 8 Generic Digital Outputs
- EEPROM for servo-gain storage and other uses
Low Voltage Power Supply
- Filtered 28V Out
- Array of Low Level Voltages to Support other CCAs
- Isolated Voltages as needed to support grounding needs
Power Stage Interface Card
- 2 Channels of 3-phase motor bridge gate drivers
- 2 Channels of 3-phase motor current sense interface
- Bus voltage and current sense interface
- Power Stage Built-in-Test Interface
