9905-603 Woodward Ship Spare Parts

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Product basic information
Manufacturer: Woodward
Model: 9905-603
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
9905-603 controller has stable performance and high reliability

Categories: WOODWARD
Tags: - Actuator 9905-603 controller debugger module Motor touch screen WOODWARD

9905-603 Woodward Ship Spare Parts

The 9905-603 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 9905-603
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:
- 9905-603 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.

The microcontroller used in this article is called “BASIC Stamp Revision D” (as shown in the figure below).
BASIC Stamp Revision D is a BS-1 chip installed on a motherboard powered by a 9-volt battery.

The supporting components include: voltage regulator, program connection cable, input/output pin pins, and a small

modeling area. You can also purchase a BS-1 chip separately and connect it to other components on the breadboard.

The revised version D is just more convenient.

From the above table, it can be seen that you cannot create something very peculiar using BASIC Stamp.

The 75 line program of BS-1 (a 256 byte electrically erasable read-only memory can store approximately 75 lines

of BASIC language programs) has significant limitations. However, you can create something exquisite, the Stamp is very compact and battery powered,

which means it can be used almost anywhere.

BASIC Stamp Program Design

You need to program the BASIC Stamp using the BASIC programming language. If you already have some understanding of BASIC language,

you will find that the BASIC language in Stamp is very easy to understand, only slightly scattered. If you don”t understand BASIC language,

but you can use programming languages such as C, Pascal, or Java, then mastering BASIC is a piece of cake for you. If you have no programming experience,

we recommend that you read and learn programming first. The following is a brief list of instructions used in Stamp BASIC programming.

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: 9905-603 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).
9905-603 Weight: Approximately 9.11 pounds (4.13 kilograms).

IV. Application Scenarios

Steam Turbine Control: 9905-603Suitable 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.