Woodward 1887-031 from SAUL ELECTRIC | In Stock
1.1887-031 Product Overview
The Woodward 1887-031 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.
2. 1887-031 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 1887-031 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 controller is mainly composed of instruction components, timing components, and control components.
An important part of the CPU in a controller, consisting of instruction components, timing components,
and control components. The instruction component mainly completes the storage and decoding of instructions;
The timing component generally consists of three levels of timing: cycle, beat, and working pulse, which generate timing
signals for the execution of instructions; The control components form corresponding logical relationships based on the
combination conditions, and then combine them with timing signals to generate the required control signals.
The controller automatic control system mainly consists of four components: controller, controlled object, actuator, and transmitter.
At present, the controllers of the control system mainly include main control systems such as PLC, DCS, FCS, etc.
The most commonly used low-level application is the PLC control system. In general, for large and medium-sized control
systems that require decentralized control and centralized management, DCS control systems are used. The FCS system is
mainly used in large-scale systems and is also the most promising fieldbus control system in the 21st century, with intricate connections between PLC and DCS.
There are no reviews yet.