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- Part number：Woodward A201SR04
- Product Origin：America
- HS CODE：8537109021
- Warehouse: Spot
- Warranty： 365 days
- Quality: Original module
- Condition： New
- Shipping method: Courier delivery
- Contact person: LI MING
- Contact number: +86 18059884790
- WeChat：18059884790
- E-mail: plc66@qq.com
Woodward A201SR04 (01A201S12 / 5880-0009) Governor Control Module for Prime Mover Systems
Product Description
The Woodward A201SR04 (alternate part numbers: 01A201S12 / 5880-0009) is a high-reliability digital governor control module engineered by Woodward Inc. for precise speed and load regulation of diesel, gas, and dual-fuel prime movers (engines/turbines) in power generation, marine, and industrial applications. This compact, modular control unit integrates closed-loop speed control, load sharing, and start/stop sequencing—featuring analog/digital I/O flexibility, configurable control algorithms, and compliance with marine (ABS, DNV) and industrial standards. Designed for harsh operating environments, it delivers ±0.25% speed regulation accuracy, ensuring stable prime mover performance in grid-connected, islanded, and standby power systems.
Key Functions
The A201SR04 governor control module delivers precise prime mover control with these core capabilities: Closed-loop speed regulation (±0.25% accuracy) with proportional-integral-derivative (PID) control algorithm; load sharing (isochronous/droop mode) for parallel operation of multiple generators; configurable start/stop/load ramp sequencing for smooth prime mover operation; analog input flexibility (0-5 VDC, 4-20 mA) for speed setpoint, load demand, and auxiliary sensor inputs; 8 digital inputs (24 VDC) for interlocks (overspeed, low oil pressure, high temperature) and 4 relay outputs (Form C, 5 A @ 250 VAC) for actuator control; built-in fault diagnostics with LED status indicators; and compatibility with Woodward actuator systems (electric/hydraulic) for seamless integration.
Application Scenarios
The Woodward A201SR04 is deployed in prime mover control systems across power generation, marine, and industrial sectors. In utility/industrial power plants, it regulates the speed of gas/diesel generators for grid-connected or islanded operation, ensuring frequency stability and load sharing. For marine vessels (ships, offshore platforms), it controls main propulsion engines and auxiliary generator sets, complying with ABS/DNV marine certification requirements. In oil & gas facilities, it regulates gas turbine/piston engine speed for pipeline compression and wellhead power systems. The module is also ideal for standby power systems (data centers, hospitals) and industrial prime movers (pumps, compressors), where precise speed/load control is critical for operational reliability.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Digital Governor Control Module for Prime Movers |
| Manufacturer | Woodward Inc. |
| Model/Part Numbers | A201SR04 / 01A201S12 / 5880-0009 |
| Speed Regulation Accuracy | ±0.25% of Set Speed (Isochronous Mode); 2-10% Droop (Configurable) |
| Input Power | 24 VDC (18-32 VDC Range); Power Consumption: 15 W Max |
| Analog Inputs | 4 Channels (0-5 VDC, 4-20 mA Configurable) for Speed Setpoint/Load Demand |
| Digital I/O | 8 Digital Inputs (24 VDC, Opto-Isolated); 4 Relay Outputs (Form C, 5 A @ 250 VAC / 30 VDC) |
| Speed Input | Magnetic Pickup (MPU): 0-1000 Hz; Hall Effect Sensor Compatible |
| Control Outputs | PWM Output (0-100% Duty Cycle) for Electric Actuators; 4-20 mA for Hydraulic Actuators |
| Operating Environment | Temperature: -40°C to +70°C (-40°F to +158°F); Humidity: 5-95% RH (Non-Condensing); Vibration: 5-2000 Hz, 2 g RMS |
| Certifications & Standards | ABS, DNV (Marine); UL, CSA (Industrial); CE Compliant; ISO 9001 Certified |
| Mechanical Features | DIN Rail Mountable (35 mm); Dimensions: 100 x 150 x 60 mm (WxHxD); Weight: 0.9 kg (2.0 lb); IP20 Protection Rating |
- Global Inventory: 121 shared inventories worldwide, enabling direct procurement from overseas warehouses for faster delivery.
- Pricing & After-Sales: Competitive prices plus reliable after-sales warranty services.
- Customer Coverage: Serving clients across United States, Germany, Japan, South Korea, United Kingdom, France, Italy, Canada, Brazil, India, Australia, Russia, Spain, Netherlands, Switzerland, Sweden, Belgium, Austria, and Turkey.
- Product Quality: All items are brand new and original. Spare parts include a 1-year warranty, and all products are tested and certified.
- Discounts: Contact us for bulk-order discounts. We also offer further price adjustments if you receive lower quotes for identical products from other suppliers.
