Woodward 9907-1182 Digital Regulator Regulator

Built for durability and accuracy, the 9907-1182 features adjustable droop and isochronous modes, making it suitable for a broad range of generator control configurations. With proven reliability in harsh environments and strong performance across a wide frequency spectrum, the 9907-1182 is trusted in critical applications in power generation, marine propulsion, and heavy industrial processes.

Product Advantages

• High Precision Speed Control: Maintains accurate speed regulation with adjustable PID tuning for precise load management.

• Flexible Load Sharing: Fully compatible with Woodward’s load sharing modules to balance load across parallel generators.

• Multiple Operation Modes: Supports both isochronous and droop modes for versatile engine/generator control.

• Industrial-Grade Reliability: Built to operate in extreme environmental conditions including vibration, temperature, and electrical noise.

• Easy Integration: Simple to interface with analog systems; includes terminals for speed bias, idle speed, rated speed, and gain adjustments.

• Low Maintenance: Analog circuitry reduces complexity and simplifies troubleshooting and maintenance.

• Fast Response Time: Capable of quick correction in transient load situations.

• Rugged Construction: Housed in a robust enclosure, designed for panel or chassis mounting.

Technical Specifications

Product Applications

• Diesel and Gas Generator Sets

  Ideal for speed and load control in emergency and continuous power supply systems.

• Turbine Governors

  Applied in industrial turbine control systems requiring tight frequency regulation.

• Marine Propulsion Systems

  Supports load sharing and power balance in marine auxiliary power units and propulsion systems.

• Cogeneration (CHP) Plants

  Enhances operational stability and fuel efficiency in distributed energy resources.

• Oil and Gas Compressors

  Regulates engine speed to maintain constant gas pressure and flow in compressor stations.

• Industrial Power Distribution

  Used in industrial plants for generator synchronization and frequency control.

Installation Instructions

1. Mounting: Install the module on a clean, dry, vibration-resistant panel using the designated screw mounts. Ensure airflow for cooling.

2. Wiring:

   • Connect the magnetic pickup to the speed sensing input terminals.

   • Link the actuator using the specified analog output wiring.

   • Wire the input power (24 VDC) through a fused line.

   • Ensure grounding is per manufacturer’s recommendations.

3. Tuning:

   • Use the onboard gain, stability, and speed potentiometers for PID tuning.

   • Adjust the load sharing bias and speed setpoint as per system configuration.

4. Commissioning:

   • Verify wiring continuity and polarity before energizing.

   • Power the controller and observe LED indicators for diagnostics.

   • Test under no-load and full-load conditions.

Frequently Asked Questions (FAQ)

Q1: What is the primary use of the Woodward 9907-1182?

A1: It’s mainly used for speed control and load sharing in diesel/gas generators and turbines.

Q2: Is this unit compatible with Woodward’s 2301A series?

A2: Yes, it belongs to the 2301A series and integrates seamlessly with other Woodward load sharing systems.

Q3: Can it work in extreme cold environments?

A3: Yes, it operates reliably from –40 °C, making it suitable for arctic conditions.

Q4: What type of actuator does the 9907-1182 support?

A4: It supports proportional actuators using a 0–200 mA current signal.

Q5: How is speed sensing achieved?

A5: Through a magnetic pickup sensor input with 1–25 Vrms signal range.

Q6: Can I use this controller for marine applications?

A6: Yes, it’s suitable for marine propulsion and auxiliary power systems.

Q7: What power supply does it require?

A7: A 24 VDC power source is required, with a working range of 18–32 VDC.

Q8: What’s the mounting type for this device?

A8: Panel or chassis mounting using screw-in enclosures.

Q9: How do I adjust the speed setpoint?

A9: Through dedicated speed potentiometers located on the front panel.

Q10: Is the product CE certified?

A10: Yes, it complies with CE and RoHS standards for industrial equipment.