5461-331 Woodward overspeed protector

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Product basic information
Manufacturer: Woodward
Model: 5461-331
Belonging to the famous 505 series
Supports multiple communication protocols and can be smoothly integrated with the existing control system of the factory
Core application: Designed specifically for speed control and protection of steam turbines
5461-331 controller has stable performance and high reliability

Categories: WOODWARD
Tags: - Actuator 5461-331 controller debugger module Motor touch screen WOODWARD

5461-331 Woodward overspeed protector

The 5461-331 is a microprocessor-based digital governor controller produced by Woodward, belonging to its classic 505 series.
It is primarily designed for speed control and protection of steam turbines. Below is a detailed introduction to this product:

I. Product Overview

Brand and Model: Woodward 5461-331
Series: 505 Series Digital Governor
Type: Microprocessor-based controller
Purpose: Specifically designed for steam turbines to control their speed and provide overspeed protection.

II. Core Functions

Speed Control:
- 5461-331 Precisely controls the speed of steam turbines by adjusting steam inlet flow.
- Supports single-range or split-range actuators to accommodate turbines of different sizes.
Overspeed Protection:
- Incorporates triple independent overspeed protection logic to ensure rapid shutdown in case of overspeed, preventing equipment damage.
- Provides an overspeed test button for convenient on-site testing of protection functions.
Emergency Shutdown:
- Equipped with an emergency stop button for immediate shutdown in emergency situations.
System Protection:
- - Automatically switches control modes upon sensor failure to ensure uninterrupted system operation.
  - Offers local/remote control priority selection to adapt to different operational scenarios.

What does grating controller s mean

The specific meaning of “S” in grating controllers may vary depending on different brands and models of grating controllers,

and not all grating controllers will directly use “S” as a specific functional identifier.

Effective Sensitive Area: In some grating control systems, “S” may represent the effective sensitive area, which is the range of areas

that the grating can detect. This range determines the maximum distance or area that the grating can monitor, and is one of the important

parameters for the grating”s safety protection function. However, it should be noted that this explanation is not absolute, as different grating

controllers may use different symbols or abbreviations to represent this parameter.
Synchronous Signal: Although you mentioned that “CE” generally represents synchronization, in the design of some grating controllers, “S” may

also be related to the synchronous signal. However, this situation is relatively rare and usually has clear markings or explanations.
Specific Function or Setting: In some complex grating control systems, “S” may represent a specific function or setting option. These functions or

settings may vary depending on the specific model and application scenario of the grating controller.
Status Indicator: In some cases, “S” may also be used to indicate a certain state of the grating controller, such as normal operation, fault alarm, etc.

But this usage is usually clearly marked on the display screen or indicator lights of the grating controller.
In addition, as an important component of industrial automation and production line safety, the function and performance of the grating controller are

crucial for ensuring the smooth progress of the production process and personnel safety. Therefore, when selecting and using a grating controller,

factors such as compatibility, reliability, accuracy, and stability should be fully considered.

III. Technical Specifications

Power Supply: 18-32 VDC, supporting 24VDC input.
Display: Two-line x 24-character LED display for clear indication of operating status and parameters.
Enclosure: NEMA 4X or IEC 60529 IP56 rated for protection against harsh industrial environments.
Inputs/Outputs:
- Inputs: 6 programmable current inputs, 16 discrete contact inputs.
- Outputs: 2 actuator outputs, 8 relay outputs, 6 programmable current outputs.
Communication Interfaces: 5461-331 Supports RS-232, RS-422, and RS-485 hardware interfaces for easy integration with host computers or other devices.
Software: Equipped with OpView™ and 505View software for parameter configuration, monitoring, and fault diagnosis.
Operating Temperature: -20 to +60°C (some models support -4 to +140°F).
Storage Temperature: -40 to +85°C (some models support -40 to +185°F).
5461-331 Weight: Approximately 9.11 pounds (4.13 kilograms).

IV. Application Scenarios

Steam Turbine Control: 5461-331Suitable for steam turbines of various sizes, including industrial steam turbines, small grid turbo-generators, and turboexpanders.
Single Extraction and Admission Applications: Designed for operating steam turbines in single extraction and/or admission applications.
On-Site Programming: Allows on-site operators to program and adjust parameters through an integrated operator control panel, adapting to different operating conditions.

V. Product Advantages

High Reliability:
- Microprocessor-based design ensures precise control and stability.
- Triple independent overspeed protection logic provides multiple layers of safety.
Flexibility:
- Supports various actuator and sensor configurations to accommodate different turbine models.
- Offers a rich set of input/output interfaces for easy system expansion and integration.
Ease of Use:
- Two-line x 24-character LED display provides an intuitive operating interface.
- A 30-key multifunctional keyboard simplifies parameter configuration and operation.
Compatibility:
- Supports multiple communication protocols for easy integration with DCS, PLC, and other systems.
- Provides OpView™ and 505View software for remote monitoring and fault diagnosis.