9907-175 Woodward

9907-175 Woodward Multi-Function Processor Module

Product  Description：

The 9905-096 is a 2301A series controller designed for high-speed, precision governing. Unlike basic analog controllers, this unit provides advanced load-sharing capabilities, allowing multiple generator sets to operate in parallel while proportionately sharing the total electrical load. It is housed in a rugged, metal-chassis enclosure designed for bulkhead mounting within a control cabinet. The device functions by sensing the speed of the prime mover via a magnetic pickup (MPU) and comparing it to a setpoint, then adjusting the actuator output to maintain the desired speed or load.

Product Parameters

• Input Power: Typically $18$ to $40 \text{ VDC}$ ($24 \text{ VDC}$ nominal).

• Speed Sensing: Compatible with Magnetic Pickup (MPU) inputs, typically ranging from $1$ to $30 \text{ VAC}$ peak-to-peak.

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

• Speed Range: Adjustable speed ranges often covering $500$ to $25,000 \text{ Hz}$ at the MPU.

• Load Sharing: Includes a $\pm 3 \text{ VDC}$ load-sharing line for paralleling multiple units.

• Operating Temperature: $-40\text{°C}$ to $+70\text{°C}$ ($-40\text{°F}$ to $+158\text{°F}$).

• Enclosure Rating: IP20, intended for protected cabinet installation.

• Adjustments: Features multi-turn potentiometers for Gain, Reset, Actuator Compensation, and Rated Speed.

Product Advantages

One of the foremost advantages of the 9905-096 is its Isochronous Load Sharing capability. This allows multiple generators to maintain a constant frequency regardless of the load size, which is critical for sensitive electronic equipment. The Robust Analog-Digital Hybrid Design provides the reliability of analog circuitry with the precision of digital processing.

The unit is also highly Flexible and Scalable; it can be used for single-unit speed control or as part of a complex multi-generator grid. Furthermore, the Advanced Dynamics Tuning features allow operators to fine-tune the "Gain" and "Reset" (integral) parameters to eliminate speed hunting and ensure the engine responds smoothly to sudden load changes. Its durability in high-vibration environments makes it a preferred choice for marine and industrial power plants.

Important Considerations and Precautions

When installing the Woodward 9905-096, Proper Shielding is non-negotiable. The Magnetic Pickup (MPU) cables must be twisted and shielded, with the shield grounded only at the control end, to prevent electromagnetic interference from causing speed instability. Actuator Calibration is another critical step; ensure the actuator's mechanical linkage is free of "slop" or binding, as mechanical friction can lead to poor control performance that software tuning cannot fix.

Technicians must also ensure Voltage Polarity is correct during installation, as reversed DC power can damage the internal power supply module. Additionally, when paralleling generators, the Phase Rotation and voltage matching must be verified before closing the breaker, as the 2301A manages load sharing but does not replace the need for an automatic synchronizer. Finally, avoid mounting the unit near high-heat sources like exhaust manifolds to prevent thermal drift of the tuning potentiometers.

Product Applications

The Woodward 9905-096 is widely deployed in power management systems where reliability is the top priority.

• Emergency Standby Power: Used in hospitals and data centers to ensure generators start and stabilize quickly during a power outage.

• Marine Propulsion and Auxiliary Power: Controlling the speed of diesel engines on ships and managing the load sharing between onboard generators.

• Oil and Gas Operations: Managing power generation for remote drilling rigs and pumping stations where grid power is unavailable.

• Industrial Cogeneration: Facilitating the parallel operation of steam turbines with the local utility grid to optimize energy costs.

• Mining Equipment: Powering large-scale mobile machinery and remote camp microgrids.

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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