Woodward 8915-024 |CPU Module, Origin: United States
1.8915-024 Product Overview
The Woodward 8915-024 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. 8915-024 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 8915-024 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.
An example of a six channel system lens driver block diagram for a digital camera, which involves much more than just a simple H-bridge
The time required to design custom driver circuits for various applications can be lengthy, including the selection of discrete components,
circuit design, PCB layout, and extensive testing. If there are available motor drive solutions pre packaged with necessary features and
recorded performance, then this effort will be in vain.
Advantages of Motor Driver Solutions
In motor drive solutions, the discrete components of the drive are integrated into a single chip that has undergone comprehensive testing
and recording to provide reliable and predictable performance. Using driver solutions also eliminates the need to design and manufacture PCBs for motor control circuits.
Compared to building drivers using discrete components, motor driver solutions have multiple advantages. For example, they are easy to use
and implement, saving time in the design and testing phases. This method also eliminates the need for reinventing the wheel, as there is no
need to design motor controllers for every new product or application.
The motor drive solution also provides excellent reliability, partly due to the built-in protection scheme that prevents faults caused by faults such
as overcurrent protection circuits, thermal shutdown, undervoltage lockout, and the availability of performance data. This further simplifies the
design and allows engineers to focus on other key features of the application involved.
There are also various motor drive solutions developed for specific applications. For example, motor drivers are designed to meet the needs of
stepper motors or brushed motors used in thermal printers, which must be energy-efficient and compact.
Click to learn more about Woodward”s products
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