9905-703 Woodward Ship Spare Parts

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Product basic information
Manufacturer: Woodward
Model: 9905-703
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
9905-703 controller has stable performance and high reliability

Categories: WOODWARD
Tags: - Actuator 9905-703 controller debugger module Motor touch screen WOODWARD

9905-703 Woodward Ship Spare Parts

The 9905-703 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 9905-703
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:
- 9905-703 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 function of infrared controller
Li5236 • Source: Comprehensive Compilation • Author: Comprehensive Compilation • March 23, 2023 14:09 • 5034 views • 0 comments

Infrared controller is an electronic device mainly used for remote control of functions such as switching, adjusting, and selecting household appliances.

It sends infrared signals to allow the receiver to operate the device. Infrared controllers are widely used in household appliances such as televisions,

air conditioners, set-top boxes, and speakers, as well as in various scenarios such as car audio systems and access control.

The function of an infrared controller is to improve the convenience and comfort of use. It can avoid frequently pressing buttons on the device and

can control household appliances at different positions at any time. In addition, infrared controllers also have intelligent functions, providing more

operational options in terms of timing, linkage, and other aspects. Overall, the function of infrared controllers is to optimize the home life experience and improve the intelligence level of home furnishings.
What are the functions of an infrared remote control

1. Suitable for coding infrared remote control household appliances;

2. Can remotely control multiple household appliances;

3. It has a learning/control multiplexing key, 5-10 device selection keys, and 10-20 function control keys, which together with one device selection

key and various function control keys achieve control of a device;

4. It is possible to learn and control common functions of multiple devices through a device selection key and various function control keys;

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: 9905-703 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).
9905-703 Weight: Approximately 9.11 pounds (4.13 kilograms).

IV. Application Scenarios

Steam Turbine Control: 9905-703Suitable 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.