Description
- Woodward 9907-019 | Original 2301A Load Sharing Control
2. Unboxing & Physical Snapshot
- Model & Brand: Woodward 9907-019, 2301A Electronic Load Sharing and Speed Control.
- Product Type: Low-voltage, reverse-acting electronic speed and load-sharing controller for prime movers, including engine and turbine applications. Woodward identifies the 9907 series as 2301A controls with selectable speed ranges.
- Physical Dimensions: Approximately 387.35 × 180.98 × 63.5 mm (W × H × D).
- Estimated Unit Weight: Approximately 1.76 kg; allow roughly 2.5–3.0 kg for protected export packaging and accessories.
- What’s in the Box: 9907-019 controller, protective packaging, mounting hardware if supplied, and documentation when available. Confirm whether any mating connectors are included before shipment.
3. Product Introduction
The 9907-019 belongs to Woodward’s 2301A electronic load-sharing and speed-control family and is configured as a low-voltage, reverse-acting controller. Its front-mounted adjustment controls and terminal connections are intended for panel installation within an engine or turbine governor cabinet. The reverse-acting configuration has an important operational consequence: loss of the speed signal can cause the actuator to move toward the configured fuel-start position, so the actual turbine or engine protection philosophy must be verified before replacement.
This is not a generic speed controller. The part number identifies a particular electrical and control configuration—20–40 VDC operation, 0–200 mA actuator output, individual-actuator operation, reverse action, and no deceleration ramp. Check the nameplate and existing wiring diagram before installation. Woodward specifically warns that using the wrong speed range can create an overspeed condition with potentially severe equipment and personnel consequences.
4. Core Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Woodward |
| Model | 9907-019 |
| Product Family | 2301A Electronic Load Sharing & Speed Control |
| Control Type | Electronic speed / load-sharing control |
| Configuration | Low voltage, reverse acting |
| Supply Voltage | 20–40 VDC |
| Nominal Supply | 24 VDC |
| Actuator Current | 0–200 mA |
| Actuator Configuration | Individual actuator |
| Deceleration Ramp | Not included |
| Speed Range | Switch-selectable |
| Speed Signal | Speed-sensing input |
| Operating Temperature | -40°F to +185°F (-40°C to +85°C) |
| Storage Temperature | -40°F to +158°F (-40°C to +70°C) |
| Approx. Dimensions | 387.35 × 180.98 × 63.5 mm |
| Approx. Weight | 1.758 kg |
| Installation | Panel mounted |
| Certification Information | CE approved; CSA certification reported for this model |
Woodward 9907-019
The manufacturer documentation confirms the 9907 series architecture and selectable speed ranges; model-specific secondary documentation identifies 9907-019 as the low-voltage reverse-acting version.
5. ? Global Compliance & Industry Certifications
Potential compliance documentation for the Woodward 9907-019 includes:
- CE Mark — model-specific documentation identifies the 9907-019 as CE approved.
- CSA Certification — secondary technical records identify CSA certification for this model.
- UL/cUL — the broader Woodward 9907 series documentation identifies UL-listed 9905/9907 controls, but the exact 9907-019 listing should be confirmed against its nameplate and certification file rather than assumed.
- ATEX / IECEx — do not assume hazardous-area approval from the controller part number alone. Verify the exact certification marking and complete installation arrangement.
- Marine approvals — DNV or equivalent approval should only be claimed when documented for the specific unit and intended marine installation.
Certification verification matters here because the controller directly influences prime-mover speed and actuator behavior. A wrong electrical configuration can have consequences well beyond a communication fault.
Verify specific lot certifications with OEM.
6. ? Long-Term Storage & Asset Preservation Guide
- Keep the controller in ESD-safe packaging. Protect the terminal strip, adjustment potentiometers, and exposed connector surfaces from dust, static discharge, and mechanical impact. Do not store it loose in a metal cabinet.
- Control warehouse humidity. Keep relative humidity below 60% RH where practical, with no condensation. Long-term moisture exposure can oxidize terminals and degrade PCB assemblies even when the enclosure appears intact.
- Inspect before energization. After extended shelf storage, examine the terminal connections, mounting hardware, nameplate, and adjustment controls. Confirm the exact speed-range switch settings against the equipment documentation; this is particularly important because Woodward warns that an incorrect speed range can produce an overspeed condition.
Record the serial number and revision information in the asset register. Woodward provides a Product History Lookup specifically for using product labels and serial numbers to identify maintenance, service, and upgrade information.
7. Physical Installation Prerequisites
- Install the 9907-019 in a panel-mounted turbine or engine control cabinet.
- Verify the available panel space against the approximately 387 × 181 mm footprint.
- Provide the required 20–40 VDC supply and verify polarity before energization.
- Use appropriately shielded wiring for speed-sensing circuits.
- Follow the Woodward wiring diagram for the reverse-acting actuator configuration.
- Connect cabinet protective grounding according to the applicable electrical standard.
- Keep the controller away from direct oil spray, condensation, and excessive vibration.
- Allow approximately 50 mm of service clearance around the controller where cabinet layout permits.
- Do not alter the speed-range selector without confirming the required turbine or engine speed range.
- Verify actuator current and fail-response behavior before returning the prime mover to service.
8. Buyer’s FAQ (Logistics & Compliance Focus)
Q: Which HS Tariff Code should be used for the 9907-019?
A: Electronic automatic regulating or controlling equipment is often reviewed under HS 9032, but the final classification depends on the declared function and destination-country customs interpretation. Confirm the code with the importer or customs broker before commercial shipment.
Q: Does the Country of Origin affect this spare?
A: Yes. COO can affect duty treatment, import controls, and documentation requirements. Match the manufacturer, part number, COO, and quantity across the commercial invoice, packing list, and certificate of origin.
Q: Should the 9907-019 be insured during international transportation?
A: Yes, particularly for emergency turbine-control spares. The adjustment controls, PCB assembly, and terminal connections can suffer shock or impact damage without obvious external deformation.
Q: Does it arrive with the latest firmware pre-loaded?
A: No firmware-loading concept comparable to a PLC CPU applies to this analog 2301A controller. Its operating behavior is determined by its hardware configuration, switch settings, adjustment controls, and connected governor system. Verify the exact 9907-019 configuration before installation; Woodward’s documentation identifies the model as a low-voltage, reverse-acting control without a deceleration ramp.
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