Woodward SPM-D11 |CPU Module, Origin: United States
1.SPM-D11 Product Overview
The Woodward SPM-D11 belongs to the 505/505E series digital turbine controllers. It is a microprocessor-based control module designed for single-valve steam turbines,
including single extraction/admission systems or split-range actuator configurations.
The controller features a front panel Operator Control Panel (OCP) with a two-line, 24-character display and multi-function keypad, allowing easy on-site configuration and monitoring.
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2. SPM-D11 Technical Specifications and Parameters
| Parameter | Details |
|---|---|
| Power Supply | +24 VDC, approx. 1 A |
| I/O Outputs | Discrete Outputs: 8 Analog Outputs: 6 Actuator Outputs: 2 |
| Display / HMI | Two-line, 24-character LCD, with multi-function keypad |
| Dimensions | Approx. 14 × 11 × 4 in (35.6 × 27.9 × 10.2 cm) |
| Weight | Approx. 9.11 lbs (4.13 kg) |
| Operating Temperature | –4 to +140 °F (–20 to +60 °C) |
| Storage Temperature | –40 to +185 °F (–40 to +85 °C) |
| Humidity Standard | 95% RH at 20-55 °C for 48 hours without damage |
| Protection Class | Typically meets industrial dust and water protection standards |
| Communication Protocol | Supports Modbus, RS-232 / RS-422 serial interfaces |
3. Brand History
Woodward, Inc., founded in 1870 and headquartered in Fort Collins, Colorado, USA, is a global leader in energy control systems. The company has a long history of innovation in turbine control, engine management,
and power generation systems.
Woodward products are widely recognized for their reliability and precision in demanding industrial and power generation applications.
4. Applications in Industrial Automation
The SPM-D11 plays a critical role in industrial automation and power generation environments:
- Steam Turbine Control: Manages startup, speed regulation, and extraction/admission control of steam turbines.
- Power Generation Systems: Used in power plants to regulate turbine-driven generators for stable frequency and load management.
- Compressor and Pump Drive Control: Ensures precise speed control for turbine-driven compressors and pumps.
- Process Industry Applications: Applied in chemical plants, refineries, and other industries requiring precise turbine operation.
- Safety and Protection Functions: Includes overspeed protection, critical speed avoidance, actuator travel limits, and event logging for operational safety.
Domain based centralized EE architecture
Overview of the Domain Controller Market
In 2018, based on the domain controller technology provided by Delphi, the zFAS controller developed by Austrian
TTTech company was first applied in the Audi A8. Weishitong Company has launched the SmartCore domain controller,
which integrates functions such as information entertainment, dashboard, information display, HUD, ADAS, etc. These products have
pioneered commercial functional domain controller products, and major Tier 1 suppliers around the world have followed suit,
gradually developing the entire domain controller market.
In the domestic market, companies such as Huawei, Desay SV, Hangsheng Electronics, and Neusoft have also launched DCU
solutions, which have been adopted by domestic car companies. For example, the intelligent coupe P7 launched by Xiaopeng Motors
in 2020 adopted the autonomous driving domain controller product IPU03 developed by Desay SV based on NVIDIA Xavier.
Currently, the entire industry has very optimistic expectations for the DCU market. According to Zuo Si Industry Research”s prediction,
the global shipment of DCUs (cockpit+autonomous driving) for automobiles will exceed 14 million sets by 2025, with an average annual growth rate of 50.7% from 2019 to 2025.
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