Description
The Woodward 8273-140 is a microprocessor-based digital load-sharing and speed control module from the renowned Woodward 2301D series. It is engineered to control prime movers such as diesel and gas engines, or steam and gas turbines, providing precise speed regulation and active/reactive load sharing when operating in parallel with other generators or utility grids.
Technical Specifications
| Parameter | Value |
| Manufacturer | Woodward, Inc. |
| Product Series | 2301D Digital Load Sharing and Speed Control |
| Part Number (MPN) | 8273-140 (Revision variants such as Rev A apply) |
| Control Function | Speed control, isochronous load sharing, droop control, and auxiliary control loops |
| Power Supply Requirements | Low-voltage DC architecture (typically 24 VDC nominal) |
| Input/Output Signals | Configurable analog/discrete inputs (e.g., speed reference, actuator output, load sensor) |
| Programming / Interface | Configured via Woodward’s Woodward ToolKit software via serial or USB communication port |
| Enclosure Protection | IP20 standard (chassis or panel-mounted device designed for indoor control cabinet installation) |
| Dimensions | Approx. 10.8 cm × 20 cm × 6 cm |
Key Features & Functionality
- Microprocessor Precision: Unlike older analog 2301 controllers, the 2301D platform utilizes digital signal processing (DSP) architecture to eliminate drift, enhance tuning precision, and offer repeatable performance.
- Flexible Operating Modes: Supports isochronous load sharing, droop control for parallel grid tying, speed trimming, and synchronization auxiliary loops.
- Software Configurability: Parameters such as PID gains, ramp rates, rated speed, and actuator scaling can be easily modified and saved using configuration software tools rather than physical potentiometer adjustments.
Supply Terms & Commercial Details
- Availability: Widely traded across industrial automation surplus suppliers, power generation parts brokers, and specialized turbine control distributors.
- Lead Time: In-stock hardware typically ships within 1 to 3 business days.
- Warranty: Standard industrial surplus or reconditioned warranties generally range from 6 months to 1 year depending on the vendor.
- Condition: Available as New Surplus, Factory Reconditioned, or Fully Tested Working Hardware.
- Pricing Note: Pricing is subject to market availability and obsolescence; contact an authorized distributor or specialized supplier for a formal quotation.
Engineering & Integration Guidance
- Power & Wiring Isolation: Ensure the 24 VDC power supply is clean and properly isolated. Keep low-level control signal wiring and communication cables segregated from high-voltage power lines and motor drives to prevent electromagnetic interference (EMI).
- Software Configuration: Always back up existing control configurations using the Woodward software utility before swapping modules or modifying firmware parameters on live generating sets.
- Actuator Calibration: Verify that the output driver configuration precisely matches the specifications of your attached electric or hydraulic actuator (e.g., Woodward ProAct, UG, or EG series actuators).
Frequently Asked Questions
What applications use the Woodward 8273-140?
It is heavily deployed in emergency backup diesel generator skids, co-generation power plants, marine propulsion control panels, and industrial gas/steam turbine generation packages.
Is the 2301D (8273-140) backward compatible with older analog 2301A systems?
While it serves as a functional upgrade replacing older analog units, physical terminal layouts and software configuration requirements differ. Panel retrofitting and software parameter mapping are required.
How are configuration changes made on the unit?
Unlike analog predecessors, configuration and fine-tuning are executed digitally via a PC connection running Woodward configuration software tools.
