Product Details
Configured for engine fuel actuator management in governor control platforms, the Woodward 9905-387 (9905-387 ProAct Driver Module) provides direct physical/electrical execution of proportional actuator positioning.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 9905-387 |
| Brand | Woodward |
| Origin | Not specified |
| Weight | 0.95 kg |
| Input Voltage | 3 VDC |
| Output Voltage | 0-3 VDC |
| Current Range | 0-200 mA |
| Operating Voltage | 18-32 VDC |
Actuator Loop Feedback Response
The 9905-387 functions as the interface between the governor controller and the ProAct actuator, regulating fuel delivery via a 0-200 mA control signal. Accurate tracking of the actuator position is necessary to maintain precise engine speed and load-sharing performance. The module's output circuitry is designed to drive low-impedance actuator coils, necessitating strict adherence to wiring gauge requirements to minimize voltage drop. To ensure consistent actuator loop feedback response, the system must be calibrated for the specific actuator travel time and spring constant, preventing oscillations during rapid throttle adjustments or load transient events.
Frequently Asked Questions
Q: Is this module compatible with other Woodward accessory units?
A: The 9905-387 is designed for integration with Woodward ecosystem components, including the SPM-A synchronizer, AGLC, and APTL units. Ensure proper signal bus termination when linking these devices to the same control network.
Q: What are the risks of exceeding the 0-200 mA current range?
A: Operating the actuator outside the specified current range may cause coil overheating or mechanical damage to the ProAct actuator internal components. Always verify the maximum current draw of the connected actuator before full-load commissioning.
Field Installation Guidelines
- Mounting: Secure the module within a temperature-controlled cabinet enclosure. Avoid mounting near high-heat sources to maintain the longevity of the digital logic components.
- Electrical Connections: Supply the module with a stable 18-32 VDC power source. Use twisted-pair, shielded cabling for the 0-200 mA control output to mitigate electromagnetic interference from ignition or motor systems.
- Grounding: Terminate the cable shield at the control cabinet ground terminal to provide a low-impedance path for noise drainage. Do not ground the shield at both ends to avoid ground loops.
- Configuration: Utilize the integrated fault data logging features during initial setup to monitor for signal inconsistencies. Ensure the 3 VDC input signal from the governor controller is stable and free from ripple.
- Validation: Before engine start, perform a full-range actuator sweep to confirm mechanical travel limits and current signal linearity.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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