Features:
- ProAct Model II digital speed-control role
- 24 VDC nominal control-system supply
- Documented Woodward service identity
Woodward manual 04121 identifies the ProAct I/II system as an electronic speed-control arrangement for engines in mechanical-drive or generator-set service.
For Model II, the documented external supply range is 18–32 VDC with 24 VDC nominal, and the control provides a 4–20 mA remote speed-reference input alongside its internal speed reference.
Woodward Application Note 51499 lists 9905-463 as the legacy ProAct Model II Speed control and links it to manual 04121; the complete part number and installed control arrangement remain the basis for service decisions.
For Woodward 9905-463 ProAct Model II Speed Control enquiries, Apter Power can support exact-part review, legacy-spare sourcing and quotation.
Woodward 9905-463 ProAct Model II Speed Control Manuals,Datasheets,Link
Important Notice: Match the full product identity and installed-system records before using any legacy documentation or service guidance.
- The controller belongs to a ProAct Model II engine-control arrangement.
- Speed-command responsibility should be separated from actuator mechanics.
- The installed part number remains the primary spare identity.
- Application documents should travel with the controller record.
- Controller and actuator identities should be reviewed as one application chain.
- Terminal wiring should be captured before removal.
- A similar Woodward enclosure does not establish integration suitability.
- Use the engine package commissioning procedure after exchange.
- Retain baseline settings and observed response for comparison.
- Stop if the application documentation identifies another controller.
- Keep receiving and commissioning evidence with the asset record.
- Industrial engine packages documented for ProAct Model II control.
- Legacy speed-control maintenance using Woodward 9905-463.
- Planned spare support for installations retaining the original controller architecture.