Woodward 9907-166 505

The Woodward 9907-166 is a digital microprocessor control unit belonging to the Woodward 505/505E series. It is specifically designed for steam turbines, including those used in marine propulsion, power stations, and small industrial installations. Equipped with a 32-bit microprocessor, it supports on-site programming and multiple control modes (such as speed, power, and pressure). Additionally, it features a redundant design and self-diagnostic functions to ensure high reliability.

Main Technical Specifications

• Power Supply: AC 88-132 VAC or DC 90-150 VDC
• Operating Temperature: -25 °C to 65 °C (without enclosure); maximum 55 °C when equipped with an NEMA 4X protective enclosure
• Dimensions/Weight: Approximately 14 in × 11 in × 4 in (about 9.1 lb)
• Signal Interface: 4-20 mA, 0-10 V, digital I/O; optional RS-232/RS-485 Modbus communication
• Control Functions: PID, proportional, fuzzy control, load sharing, closed-loop control for speed/power/pressure; supports on-site programming and parameter adjustment
• Protection Rating: IP56 (IEC 60529) or NEMA 4X protective enclosure
• Environmental Adaptability: Suitable for harsh industrial environments, with dust-proof, moisture-proof, and corrosion-resistant properties

Product Features

• High-Performance Control: Offers multi-mode control and various regulation strategies, providing fast and accurate speed and load adjustment.
• Strong Reliability: Features redundant hardware design, fault self-diagnosis, and alarm functions, making it suitable for critical industrial systems.
• Flexible Configuration: Supports a variety of sensors/actuators, and on-site programming allows customization according to user needs.
• Easy Installation and Maintenance: Enables DIN rail or NEMA 4X enclosure installation, with a modular I/O design for convenient wiring, replacement, and on-site debugging.
• Open Architecture: Compatible with multiple industrial networks (Modbus, RS-232/422), facilitating integration with DCS and SCADA systems.

Structure and Composition

• Main Control Board: Includes a 32-bit microprocessor, memory, and communication interfaces.
• Power Supply Module: Provides voltage stabilization and filtering, supporting dual AC/DC power input.
• I/O Module: Consists of analog inputs (current/voltage), digital inputs/outputs, and relay outputs.
• Enclosure: Optional IEC IP56 or NEMA 4X protective enclosure to adapt to different environments.
• Keyboard/Display: A 30-key multi-function keyboard combined with a two-line, 24-character display for on-site operation and parameter checking.

Typical Application Fields

• Power Plant Steam Turbines: Closed-loop control of speed, power, and pressure.
• Marine Propulsion Systems: Speed and load adjustment for marine steam turbines or gas turbines.
• Industrial Steam-Driven Equipment: Steam turbines used in industries such as chemical engineering, petroleum, and papermaking.
• Small Expanders or Micro-Power Generation Devices: Suitable for distributed energy systems or experimental platforms.

Installation Key Points

• Location Selection: Ensure good ventilation and avoid high-temperature, highly corrosive environments; select an NEMA 4X enclosure if protection is required.
• Power Wiring: Connect according to the power supply specifications (AC or DC), using cables that comply with the IEC 60320 standard.
• I/O Wiring: Adopt standard terminal blocks or DIN rail terminals to ensure proper shielding and grounding of signal wires.
• Keyboard/Display Installation: Fix it on the operation panel for easy on-site debugging.
• Communication Interface: Select RS-232, RS-485, or Ethernet modules based on the on-site network, and configure the corresponding protocol (Modbus).

Maintenance Recommendations

• Regular Inspection: Check the power supply, wiring, and terminal tightness every 6-12 months; verify the tight seal of the protective enclosure.
• Firmware Upgrade: Use the 505View/OpView software officially provided by Woodward to update the firmware, maintaining the latest functions and security patches.
• Self-Diagnostic Logs: Utilize the built-in fault self-diagnostic function to export logs regularly and analyze potential abnormalities.
• Spare Parts Management: Keep critical components such as power supply modules, I/O cards, and keyboards/displays in stock to minimize maintenance downtime.

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Our Company’s Advantageous Services

1. Boasting years of expertise in the industrial control sector, we maintain an extensive stock of related products.
2. As a leader in the industry, we deliver competitive pricing alongside reliable product quality guarantees.
3. We offer a diverse selection of models and products, covering various rare items as well as discontinued industrial components.
4. For any product quality issues arising within 15 days of purchase, we provide free replacement services.

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