Company Information | ||||||||
[email protected] | ||||||||
Mobile | +8613666033393 | |||||||
+8613666033393 | ||||||||
13666033393 | ||||||||
Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China |
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
Parameter | Specification |
---|---|
Product Name | Woodward 9905-860 Digital Control Unit |
Series | 2301D Digital Load Sharing and Speed Control |
Power Supply Voltage | 18 to 40 VDC |
Power Consumption | 15 W nominal |
Speed Input Range | 0.5 to 32.7 kHz |
Number of Inputs | 6 analog, 3 digital |
Number of Outputs | 4 analog, 6 digital |
Communication Interface | RS-232, RS-485 (Modbus RTU supported) |
Ambient Operating Temperature | -40 °C to +70 °C (-40 °F to +158 °F) |
Humidity | 95% RH non-condensing |
Mounting Style | Panel mount or DIN-rail mount |
Protection Class | IP20 |
Certifications | CE, UL, cUL, CSA, RoHS compliant |
Material | Aluminum and industrial-grade plastic |
Dimensions | 150 x 100 x 50 mm |
Weight | 0.5 kg |
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)
-
What type of engines can the 9905-860 control?
The 9905-860 is compatible with both diesel and gas engine-driven generators or turbines. -
Does this controller support load sharing between multiple generators?
Yes, it supports droop and isochronous load sharing for parallel generator operation. -
Is the unit programmable?
Yes, using Woodward’s ToolKit software, all major parameters and configurations can be customized. -
What communication protocols does it support?
It supports Modbus RTU via RS-232 and RS-485. -
What is the maximum frequency input it can handle?
The controller accepts frequency inputs from 0.5 to 32.7 kHz. -
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. -
Is this model UL certified?
Yes, it carries UL, CE, and CSA certifications. -
What kind of mounting does it support?
It can be DIN rail or panel mounted depending on the application needs. -
Does it support remote monitoring?
Yes, remote monitoring and diagnostics are available via Modbus connection. -
What tools are required for configuration?
Only a PC with Woodward ToolKit software and a serial/USB interface cable is needed.
Related Models from the Same Series
Model Number | Description | Voltage Range | Communication | Mounting Style | Dimensions (mm) | Weight |
---|---|---|---|---|---|---|
9905-850 | Basic 2301D model with speed control | 18–40 VDC | None | Panel mount | 285x187x65 | 2.3 kg |
9905-861 | 2301D with CAN communication support | 18–40 VDC | CAN, Modbus | DIN rail mount | 285x187x65 | 2.5 kg |
9905-862 | Advanced load-sharing controller | 18–40 VDC | RS-485 | Panel mount | 285x187x65 | 2.4 kg |
9905-870 | Marine certified version for harsh environments | 18–40 VDC | RS-232/485 | Panel mount | 285x187x70 | 2.6 kg |
9905-893 | Enhanced model with extended I/O capabilities | 18–40 VDC | Modbus RTU | Panel mount | 290x190x75 | 2.7 kg |
9905-899 | Redundant control version | 18–40 VDC | RS-232/485 | Rack mount | 300x200x80 | 3.0 kg |
Popular Models from the Same Brand (Woodward)
Model Number | Application | Control Type | I/O Support | Dimensions (mm) | Weight |
---|---|---|---|---|---|
2301A | Analog speed/load sharing control | Analog | Limited | 220x140x60 | 1.8 kg |
easYgen-3500XT | Genset control with display interface | Digital | Extensive | 280x216x96 | 2.5 kg |
MicroNet Plus | Large system turbine control | PLC-based | Modular/Expandable | 482x222x300 | 6.8 kg |
DSLC-2 | Digital Synchronizer Load Control | Digital | High-speed I/O | 356x254x76 | 4.5 kg |
UG-25+ | Mechanical-hydraulic governor with electronics | Hybrid | Analog | 300x200x180 | 8.2 kg |
Flex500 | Remote I/O and logic engine for turbine/genset | Digital/RTU | Modular | 230x190x90 | 2.3 kg |