Enabling High-Speed Integration Between VME Systems and Turbine Controls
The Woodward SST-DN4-102-2 is a robust VMEbus interface module for critical control systems. This unit facilitates high-performance connectivity between a VMEbus computer system and Woodward governors. It is specifically tailored for demanding applications in power generation and industrial automation. Consequently, it ensures reliable, high-speed data exchange within these mission-critical environments.
Technical Specifications and Rugged Environmental Ratings
This interface module from Woodward conforms to the standard VMEbus 6U single-slot form factor. Its design supports data transfer rates of up to 10 Mbps for efficient communication. Furthermore, the module is built to withstand extreme temperatures, shock, and vibration.
Detailed Technical Parameters
| Parameter | Specification |
|---|---|
| Manufacturer | Woodward |
| Model Number | SST-DN4-102-2 |
| Product Category | VMEbus Interface Module / Communication Card |
| Host System Bus | VMEbus (Versa Module Eurocard bus) |
| Form Factor | 6U Single Slot (conforms to IEEE 1014 standard) |
| Primary Function | Interface between VMEbus and Woodward Digital Control Networks |
| Target Device Interface | Woodward Governors (e.g., 505, PRO-TECH) & Turbine Control Systems |
| Data Transfer Rate | Up to 10 Mbps (Mega bits per second) |
| Bus Interface | VMEbus (32-bit data transfer, as per standard) |
| Front Panel Connectors | Likely includes one or more ruggedized connectors (e.g., D-Sub) |
| Power Supply | +5V, +/-12V from VMEbus backplane |
| Typical Power Consumption | < 15 Watts (dependent on VME slot power limits) |
| Operating Temperature Range | -40°C to +85°C |
| Storage Temperature Range | -55°C to +90°C |
| Relative Humidity | 0% to 95% non-condensing |
| Vibration Resistance | Up to 5g RMS (20 Hz to 500 Hz) |
| Shock Resistance | Up to 30g, half-sine, 11 ms duration |
| Module Dimensions (H x W x D) | 6U: 233.35 mm (H) x 1 Slot (20.32mm) x ~160mm (D) approx. |
| Module Weight | Approximately 0.5 kg |
| Mounting | Installs into a standard VMEbus card cage/crate |
| Status Indicators | LEDs on front panel for Power, Activity, Fault |
| Isolation | Galvanic isolation between VMEbus and field side (typical) |
| Internal Energy Storage | None; requires continuous VMEbus power |
| Component Count | 1 Integrated Module Unit |
Key Features and Application Context
The SST-DN4-102-2 module acts as a critical gateway in turbine control test beds and simulators. It allows a VMEbus-based real-time computer to communicate directly with Woodward control hardware. The module also provides the necessary electrical and protocol conversion for seamless integration. Moreover, its rugged mechanical design ensures reliable operation in mobile test vehicles or harsh industrial settings. Therefore, it is essential for research, development, and high-fidelity simulation of turbine control systems.
System Integration and Typical Use
Engineers typically use this module in hardware-in-the-loop (HIL) simulation setups. For example, a VME system running a real-time turbine model can interface with an actual Woodward 505 governor via this card. The SST-DN4-102-2 handles the deterministic data exchange required for accurate simulation. This enables thorough testing and validation of control algorithms before field deployment.
Installation and Configuration
First, power down the VMEbus card cage and remove the blank panel from an available slot. Next, carefully align the SST-DN4-102-2 module with the slot guides and insert it firmly into the backplane connector. Then, secure the module’s front panel to the crate using the provided screws. Finally, connect the field-side cable to the Woodward control system and power up the VME crate, loading any necessary device drivers on the host system.
Details
| Weight | 0.91 kg |
|---|---|
| Dimensions | 273.6 × 214.1 × 59.2 mm |
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