Woodward 9907-076 |CPU Module, Origin: United States
1.9907-076 Product Overview
The Woodward 9907-076 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.
2. 9907-076 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 9907-076 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.
Step 5: Start searching for microcontrollers
Now that I have a better understanding of the requirements for the characteristics of microcontrollers, I can start searching for them!
A good starting point is microcontroller suppliers such as Arrow, Avnet, or Future Electronics.
Talk to FAE about your application and requirements, and often they can recommend new components that are both cutting-edge
and meet the requirements. Just remember, they may have pressure to promote a certain series of microcontrollers at the moment!
The next best place is the chip supplier you are already familiar with. For example, if you have used certain microchip components
in the past and have a good relationship with suppliers, start searching from their website.
Most chip suppliers have a search engine where you can input your peripheral set, I/O, and power requirements, and then it will narrow
down the list of components that meet the criteria. From this list, engineers can continue to select microcontrollers.
Step 6: Check cost and power limitations
At this point, the selection process has identified several potential candidates. Now is a great opportunity to check power requirements
and component costs. If the device will be powered by batteries and belongs to the mobile type, ensuring that the components have low power consumption is the top priority.
If the components do not meet the power consumption requirements, they should be removed from the list until those that meet the criteria
are selected. Don”t forget to check the unit price of the processor.
Although the wholesale price of many components has stabilized at around $1, if the components are highly specialized or belong to high-end
processors, their unit price may be very important. Don”t forget this key factor
Click to learn more about Woodward”s products
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