WOODWARD 8200-226 – Servo Position Controller | EG3P / ProAct Series
Engineering Background
The WOODWARD 8200-226 is a dedicated servo position controller engineered for precision closed-loop control of electro-hydraulic and electro-mechanical actuators in turbine, engine, and compressor governor systems. Developed within WOODWARD’s proven EG3P / ProAct control platform, this module delivers deterministic response times and high-resolution position feedback essential for critical speed and load regulation in power generation and industrial drive applications.
Product Positioning
Designed for OEM integration and MRO replacement in gas turbines, steam turbines, diesel engines, and industrial compressors, the 8200-226 is the preferred choice for plant engineers and procurement specialists who require drop-in compatibility, traceable provenance, and long-term parts availability. Konmask.com maintains verified stock sourced directly from authorized distribution channels, with full documentation support.
Complete Technical Specifications
| Part Number | 8200-226 |
| Manufacturer | WOODWARD |
| Product Family | EG3P / ProAct Servo Position Controller Series |
| Function | Closed-loop servo position control for electro-hydraulic / electro-mechanical actuators |
| Control Type | Analog PID with digital supervisory interface |
| Input Signal | 4–20 mA / 0–5 VDC position demand (configurable) |
| Feedback Type | LVDT / potentiometer position feedback |
| Output Drive | Proportional servo valve drive (mA output) |
| Supply Voltage | 18–32 VDC (nominal 24 VDC) |
| Operating Temperature | -40 °C to +70 °C |
| Enclosure / Form Factor | DIN-rail / panel-mount module |
| Weight | 1,550 g (as shipped) |
| Certifications | CE, UL (per WOODWARD product family listing) |
| SKU | CMW112 |
Proven Application Environments
- Gas turbine governor and fuel control systems (GE, Siemens, Solar Turbines OEM platforms)
- Steam turbine speed and load control (power plant MRO replacement)
- Diesel and dual-fuel engine governor systems (marine, rail, stationary gensets)
- Industrial compressor anti-surge and capacity control loops
- Hydraulic actuator position servo loops in process control valves
- Retrofit and upgrade projects replacing legacy analog governor hardware
Engineering Advantages
- Deterministic PID response – tunable gain, integral, and derivative parameters for precise actuator positioning under dynamic load changes
- Wide input compatibility – accepts 4–20 mA or voltage demand signals; LVDT and potentiometer feedback without external signal conditioning
- Robust power supply range – 18–32 VDC tolerance accommodates battery-backed and unregulated plant DC bus variations
- Extended temperature rating – -40 °C to +70 °C qualifies for outdoor enclosures and harsh industrial environments
- Direct drop-in replacement – identical form, fit, and function to original WOODWARD 8200-226 installations; no re-wiring or re-commissioning of actuator required
- Diagnostic LED indicators – on-board status LEDs for power, fault, and servo drive output enable rapid field troubleshooting
System Architecture & Signal Flow
The 8200-226 operates as a standalone servo amplifier within a larger governor or control system architecture:
- Demand Input – Speed/load controller (e.g., WOODWARD 505, MicroNet, or third-party PLC) outputs a 4–20 mA position demand signal to the 8200-226.
- Position Feedback – LVDT or potentiometer mounted on the actuator shaft returns real-time position to the module’s feedback input.
- PID Computation – The module computes the error between demand and feedback and applies configurable PID gains to generate a corrective output.
- Servo Valve Drive – The corrective signal drives the proportional servo valve coil (mA output), repositioning the actuator until error is nulled.
- Supervisory Interface – Enable/disable, fault relay, and status outputs connect to the plant DCS or safety system for integrated monitoring.
Sourcing & Quality Verification
- Origin – Genuine WOODWARD manufactured component; not aftermarket or rebranded
- Condition – New surplus or factory-refurbished (condition confirmed at time of order; contact us for current stock status)
- Traceability – Each unit ships with original WOODWARD part label, serial number, and date code visible
- Testing – Functional bench-test verification available on request prior to shipment
- Packaging – Anti-static ESD bag, foam-lined carton; gross weight approx. 1,550 g
- Documentation – WOODWARD product manual and wiring diagram available for download or supplied on request
Procurement Process
- Confirm part number – Verify 8200-226 against your existing unit’s label or WOODWARD BOM before ordering.
- Request a quote – Contact support@konmask.com or call +0086 19859288691 for volume pricing, lead time, and stock confirmation.
- Place order – Purchase directly via Konmask.com checkout or via proforma invoice for B2B/wire transfer.
- Shipping – DHL / FedEx express international; EXW Shenzhen or CIF destination available. Export documentation (commercial invoice, packing list, COO) provided.
- Incoming inspection – We recommend verifying part label, serial number, and performing a bench power-up test before installation.
Technical FAQ
Q: Is the 8200-226 compatible with WOODWARD EG3P actuators?
A: Yes. The 8200-226 is designed as the servo amplifier card within the EG3P control family and is fully compatible with EG3P electro-hydraulic actuators.
Q: Can this module replace an older 8200-xxx series card?
A: Compatibility depends on the specific variant. Please provide your existing part number and we will confirm interchangeability before shipment.
Q: What feedback sensor types are supported?
A: The module natively supports LVDT (linear variable differential transformer) and resistive potentiometer position feedback. Contact us if your application uses a different sensor type.
Q: Is a WOODWARD service manual available?
A: Yes. The relevant WOODWARD technical manual can be provided upon request. Contact support@konmask.com.
Q: Do you offer warranty?
A: All units carry a 90-day functional warranty against defects. Extended warranty and exchange programs are available for qualified accounts.
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Contact: support@konmask.com | +0086 19859288691
