Woodward 8272-516 |CPU Module, Origin: United States
1.8272-516 Product Overview
The Woodward 8272-516 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. 8272-516 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 8272-516 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.
Advantages and disadvantages of motion controllers
Advantages of motion controller:
(1) The hardware composition is simple. Simply insert the motion controller into the PC bus and connect the signal lines to form the system;
(2) You can use the rich software already available on the PC for development;
(3) The code universality and portability of motion control software are good;
(4) There are many engineering personnel who can carry out development work and do not require too much training to proceed with development.
Disadvantages of motion controllers:
(1) The motion controller with a board structure adopts a gold finger connection and is fixed on one side, which is
not suitable for long-term operation in most industrial sites with poor environmental conditions (severe vibration, dust, and oil pollution).
(2) Waste of PC resources. Due to the bundled sales of PCs, users actually only use a small portion of PC resources.
Unused PC resources not only cause idle and waste, but also bring maintenance troubles.
(3) The overall reliability is difficult to guarantee, as the PC can be either an industrial computer or a commercial computer.
After system integration, there is a significant difference in reliability that cannot be guaranteed by the motion controller.
(4) Difficult to highlight industry characteristics.
Click to learn more about Woodward”s products
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