Woodward 9905-096 from SAUL ELECTRIC | In Stock
1.9905-096 Product Overview
The Woodward 9905-096 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. 9905-096 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 9905-096 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.
The difference between PID controller and switch controller
1. Introduction
In industrial automation control systems, PID controllers and switch controllers are two common control strategies.
They each have unique working principles, application scenarios, and advantages and disadvantages. This article aims to
explore in detail the differences between PID controllers and switch controllers, and compare and analyze them from multiple
aspects such as working principles, application scenarios, and performance characteristics, so that readers can have a deeper
understanding of these two control strategies and make more reasonable choices in practical applications.
2、 The working principle and characteristics of PID controller
working principle
A PID controller (Proportional Integral Derivative Controller) is a bias based feedback control algorithm consisting of three control
terms: proportional (P), integral (I), and derivative (D). It measures the difference (i.e. deviation) between the output value of the controlled
object and the expected value, and then processes the deviation based on proportional, integral, and derivative control terms to obtain the
output of the controller. The working principle of PID controller is based on error feedback adjustment, which continuously adjusts the control
quantity to gradually approach the set value of the system output.
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