Woodward 5466-268 | Governor | Controller | Potential Converter
1.5466-268 Product Overview
The Woodward 5466-268 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. 5466-268 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 5466-268 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.
Driver/receiver, what is the principle of driver/receiver?
Driver/receiver, what is the principle of driver/receiver?
5V dual RS232 driver/receiver
The T1780/LT1781 dual RS driver/receiver has a single 5V power supply, low power consumption (only 40mW), and ± 15kV ESD
protection (no expensive TransZorbs are required at the RS232 terminal). Only a 0.1 μ F external capacitor is needed to operate at 120k
Baud (for load RL=3K, CL=2500pF) and 250kBaud (for load RL=3, CL=1000pF). LT1780/LT1781 is completely consistent with the EIA RS232
standard. Its output can withstand ± 30V without damage. The output of its driver and receiver is in a high impedance state under shutdown or
power-off conditions. The applications of LT1780/LT1781 include portable computers, battery powered systems, power generators, terminals,
modems, etc. Its typical application circuit is shown in Figure 1.
The T1780/LT1781 dual RS driver/receiver has a single 5V power supply, low power consumption (only 40mW), and ± 15kV ESD protection
(no expensive TransZorbs are required at the RS232 terminal). Only 0.1 μ F external capacitor is needed to operate at 120k
Baud (for load RL=3K, CL=2500pF), 250kBaud (for load RL=3, CL=1000pF).
LT1780/LT1781 and EIA
The RS232 standard is completely consistent. Its output can withstand ± 30V without damage. The output of its driver and receiver is in
a high impedance state under shutdown or power-off conditions. The applications of LT1780/LT1781 include portable computers,
battery powered systems, power generators, terminals, modems, etc.
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