Woodward 9905-860 Digital Control Unit

Product Introduction

The Woodward 9905-860 Digital Control Unit is a part of Woodward’s proven 2301D series, designed specifically to provide precise control of prime movers and generators in a wide range of industrial applications. It is a microprocessor-based controller offering flexible, reliable, and scalable digital control for systems requiring load sharing, speed control, and generator synchronization.

The 9905-860 stands out for its enhanced communication, customizable parameters, and robust performance in demanding environments. It supports automatic start/stop sequences, droop and isochronous load sharing, and it can interface with various actuators and sensors for real-time performance optimization.

This controller is especially popular in diesel and gas engine genset applications, offering seamless integration, minimal setup time, and long-term durability under industrial stress conditions.

Product Specifications

Product Applications

The Woodward 9905-860 is suitable for a variety of industrial and commercial settings. Its robust functionality makes it ideal for:

• Diesel and Gas Engine Generator Control

• Prime Mover Speed Control

• Paralleling Generator Sets

• Load Sharing and Load Management

• Power Generation Plants

• Marine Propulsion Systems

• Utility Power Synchronization

• Backup Power Management Systems

Thanks to its compatibility with a wide array of actuators and sensors, it can be seamlessly integrated into existing automation systems with minimal adjustments.

Product Advantages

• Advanced Digital Control: Delivers precise load sharing and speed regulation under a variety of load conditions.

• Robust Communication: Supports Modbus RTU over RS-232 and RS-485, allowing easy integration with SCADA or HMI systems.

• User-Configurable Settings: Parameters can be modified using Woodward’s ToolKit software for flexible deployment.

• Wide Operating Range: Operates in harsh environments with extreme temperatures and high humidity.

• Compact Design: Despite its powerful features, it offers a compact footprint suitable for limited space enclosures.

• Fail-Safe Operation: Designed with internal diagnostics and alarm management to ensure system reliability.

• Easy Installation and Maintenance: DIN-rail or panel mounting, and modular I/O simplify setup and service.

Frequently Asked Questions (FAQs)

1. What type of engines can the 9905-860 control?
   The 9905-860 is compatible with both diesel and gas engine-driven generators or turbines.

2. Does this controller support load sharing between multiple generators?
   Yes, it supports droop and isochronous load sharing for parallel generator operation.

3. Is the unit programmable?
   Yes, using Woodward’s ToolKit software, all major parameters and configurations can be customized.

4. What communication protocols does it support?
   It supports Modbus RTU via RS-232 and RS-485.

5. What is the maximum frequency input it can handle?
   The controller accepts frequency inputs from 0.5 to 32.7 kHz.

6. Can I use it in outdoor applications?
   It is not IP-rated for direct outdoor use but can be used inside weatherproof enclosures in outdoor settings.

7. Is this model UL certified?
   Yes, it carries UL, CE, and CSA certifications.

8. What kind of mounting does it support?
   It can be DIN rail or panel mounted depending on the application needs.

9. Does it support remote monitoring?
   Yes, remote monitoring and diagnostics are available via Modbus connection.

10. What tools are required for configuration?
    Only a PC with Woodward ToolKit software and a serial/USB interface cable is needed.

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