Woodward 9907-624 505 Turbine Control | 100% Original
1.9907-624 Product Overview
The Woodward 9907-624 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.
contacts： Mike
+86 18350224834 （WeChat/WhatsApp）
Email：Mike18350224834@gmail.com
2. 9907-624 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 9907-624 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.
3、 Overview of PWM Controller
PWM controller is a control strategy that adjusts the duty cycle of pulses to control the average level of the output signal. It controls
the required output by periodically switching the power supply and adjusting the ratio of switching time to off time. PWM controllers are
widely used in application scenarios that require simulation of continuous signals, such as DC motor speed control, LED brightness
adjustment, audio amplifiers, etc.
principle
The principle of PWM controller is to control the voltage and current in the circuit by changing the width of the pulse. In PWM signals,
the high-level duration is longer and the low-level duration is shorter, which changes the power output in the circuit. Specifically, when the
PWM signal is at a high level, the switches
in the circuit will open and current will flow through the load; When the PWM signal is at a low level, the switch will close and the current will
stop flowing. Therefore, by changing the time ratio of the high and low levels of the PWM signal, it is possible to control the voltage and current in the circuit.
application
PWM controllers are commonly used in application scenarios that require simulation of continuous signals, such as DC motor speed control,
LED brightness adjustment, audio amplifiers, etc. In these applications, PWM controllers can accurately control the average level of the output
signal by adjusting the duty cycle of the pulses, thereby achieving precise control of the equipment.
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