Woodward 8915-024 Price Discount | In Stock
1.8915-024 Product Overview
The Woodward 8915-024 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. 8915-024 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 8915-024 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.
Composition of motion controller architecture
A motion controller is used to generate feedback loops for trajectory points (expected output) and closed positions.
Many controllers can also close a speed loop internally. A driver or amplifier is used to convert the control signal (usually
speed or torque signal) of a motion controller into a higher power current or voltage signal. More advanced intelligent drives
can close their own position and speed loops to achieve more precise control. An actuator such as a hydraulic pump, cylinder,
linear actuator, or motor is used to output motion. A feedback sensor such as a photoelectric encoder, rotary transformer, or Hall
effect device is used to provide feedback on the position of the actuator to the position controller, in order to achieve closure of the position control loop.
Numerous mechanical components are used to convert the motion form of the actuator into the desired motion form, including gearboxes,
shafts, ball screws, toothed belts, couplings, and linear and rotary bearings. Typically, the functions of a motion control system include speed
control and point-to-point control. There are many methods to calculate a motion trajectory, usually based on a velocity curve such as
a triangular velocity curve, trapezoidal velocity curve, or S-shaped velocity curve. Such as electronic gears (or electronic camshafts).
That is to say, the position of the driven shaft mechanically
follows the position change of an active shaft. A simple example is that a system consists of two turntables that rotate according to a
given relative angular relationship. Electronic cam is more complex than electronic gear, as it makes the following relationship curve
between the driving shaft and the driven shaft a function. This curve can be non-linear, but it must be a functional relationship.
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