9905-096 Woodward

9905-096 Woodward Multi-Function Processor Module

Product  Description：

The 9905-096 belongs to the 2301A series, which is known for its ruggedness and long-term reliability in harsh industrial environments. This specific model is a Load Sharing version, meaning it is designed not just to maintain a set engine speed, but to ensure that multiple generators connected to the same bus share the electrical load proportionally. It operates by receiving a speed signal from a magnetic pickup and then sending a proportional signal to an actuator to adjust fuel flow. The unit is housed in a robust metal chassis designed for bulkhead mounting within a control cabinet.

Product Parameters

• Model Type: 2301A Load Sharing and Speed Control.

• Power Supply: Generally configured for $18-40 \text{ VDC}$ (Low Voltage model).

• Speed Range: High-speed version, typically covering $3000-7000 \text{ Hz}$ at the magnetic pickup.

• Input Signal: Compatible with standard magnetic pickups (MPUs) with a minimum signal of $1.5 \text{ VAC}$.

• Actuator Output: Provides a $0-200 \text{ mA}$ signal, compatible with most Woodward proportional actuators.

• Load Sharing: Features $0-6 \text{ VDC}$ load sharing lines for parallel operation with other Woodward controls.

• Enclosure Rating: IP20, intended for protected mounting.

• Operating Temperature: $-40\text{°C}$ to $+85\text{°C}$ ($-40\text{°F}$ to $+185\text{°F}$).

Product Advantages

A primary advantage of the 9905-096 is its Deterministic Analog Logic, which provides instantaneous response to load changes without the processing lag sometimes found in older digital systems. The Isochronous Load Sharing capability allows multiple generator sets to maintain a constant frequency regardless of the total load on the system.

The device also offers Excellent EMI Resistance, which is vital when mounted near high-voltage alternators and heavy switching gear. Its Field-Adjustable Potentiometers allow technicians to fine-tune the gain, reset, and actuator compensation directly on the unit without needing specialized software or a computer interface. This "hands-on" adjustability is highly valued in remote locations where tech support is limited.

Important Considerations and Precautions

When installing the 9905-096, it is essential to use Shielded Twisted-Pair Cabling for the magnetic pickup and actuator lines; failure to do so can lead to electromagnetic interference causing "hunting" or unstable engine speed. Grounding must be executed at only one end of the shield to prevent ground loops.

Technicians must be cautious with Voltage Polarity during installation, as reversing the $24 \text{ VDC}$ input can damage internal circuitry. Furthermore, before attempting to parallel generators, ensure that the Phase Rotation and voltage levels are perfectly matched; the 2301A manages speed and load sharing but does not replace the need for a proper synchronizer. Lastly, during the initial startup, the Gain and Stability settings should be set to a minimum to prevent engine overspeed or violent mechanical oscillations.

Product Applications

The Woodward 9905-096 is extensively used in complex power systems that require multiple engines to work together.

• Marine Propulsion and Power: Coordinating multiple diesel generators on ships to handle varying hotel and propulsion loads.

• Remote Power Plants: Managing parallel-connected generator sets in off-grid mining or industrial sites.

• Emergency Standby Systems: Providing fast-response frequency control for hospitals and data centers during power transitions.

• Oil and Gas Platforms: Governing gas turbines used for both mechanical drive and electrical generation in offshore environments.

• Steam Turbine Control: Regulating the speed of smaller steam turbines used in process industries for waste heat recovery.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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