Woodward 8271-468 505 Turbine Control | 100% Original
1.8271-468 Product Overview

The Woodward 8271-468 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.
contacts: Mike
+86 18350224834 (WeChat/WhatsApp)
Email:Mike18350224834@gmail.com
2. 8271-468 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 8271-468 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.

Performance parameter analysis of drives and control methods of drives
Performance parameter analysis of the drive
1. Power parameters
Power parameters are the foundation of driver performance, including rated power, peak power, and efficiency. Rated power refers to
the maximum power that a driver can stably output over a long period of time, while peak power refers to the maximum output power that
can be sustained in a short period of time. Efficiency refers to the efficiency of a driver in converting electrical energy into mechanical energy.
High efficiency drivers can reduce energy losses and lower operating costs.
2. Speed and torque
Speed and torque are two key indicators for measuring the performance of a drive. The speed parameters include maximum speed and rated
speed, while the torque parameters include starting torque and rated torque. These parameters determine the maximum speed and load capacity that the driver can achieve by driving the motor.
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