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WOODWARD 8273-140 Speed Control--KIMI
- 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
Product Description
Woodward 8273-140 (2301D) Digital Load Sharing & Speed Control
24 Vdc | Ordinary Locations | Load Sharing | Speed Governing | Modbus RTU | ISO 8528 | Generator/Engine Control
1. Core Product Overview
The Woodward 8273-140 is a 2301D digital load sharing and speed control (24 Vdc, Ordinary Locations) for generators/engines, enabling precision speed governing (0.25% speed regulation) and proportional load sharing in parallel multi-unit systems{insert\_element\_0\_}. It uses a microprocessor-based design with 3 magnetic pickup (MPU) inputs, 4–20 mA speed/load analog outputs, and Modbus RTU (RS-485) communication for DCS/SCADA integration. The controller supports isochronous speed control, droop load sharing, and load limiting, with front-panel pushbuttons/LEDs for local operation and status monitoring. It is panel-mountable (19-inch rack), IP20-rated, and designed for -40°C~+70°C industrial environments, complying with ISO 8528 for generator set performance{insert\_element\_1\_}.
• Core Role: Generator/engine speed control; parallel load sharing; load limiting; isochronous/droop mode; Modbus remote monitoring • Model Info: 8273-140 (order code); 2301D series; 24 Vdc input; Ordinary Locations; panel mount • Key Specs: 900–3600 RPM; 0.25% speed regulation; 4–20 mA; Modbus RTU; -40°C~+70°C; 18–40 Vdc input • Reliability: 3 MPU channels; 100,000-hour MTBF; IP20; CE/UL; 12-month Woodward warranty
2. Key Technical Specifications
| Parameter | Specification |
|---|---|
| Power Supply | 24 Vdc (18–40 Vdc range); 15W max power consumption; reverse-polarity protected |
| Speed Input | 3 MPU inputs; 900–3600 RPM; 100 Hz–10 kHz frequency range; 0.25% speed regulation |
| Control Modes | Isochronous (0% droop); droop load sharing (2–10% droop); load limiting (0–110% rated load) |
| Outputs | 2 relay outputs (NO/NC, 5A/250V AC); 4–20 mA speed/load output; 0–10 Vdc actuator drive |
| Communication | Modbus RTU (RS-485); 9.6–115.2 kbps; 4–20 mA analog; relay status outputs |
| Environment | -40°C~+70°C; 5–95% non-condensing; IP20; IEC 721-3-3 Class 3C2 (optional) |
| Mechanical | Panel mount (250×180×100mm); 1.2 kg; plug-in terminals; 19-inch cabinet compatible |
3. Control Modes & Protection Logic
The 8273-140 supports three core control modes: isochronous speed control (0% droop, constant frequency for single-unit systems), droop load sharing (2–10% droop, proportional load distribution in parallel units), and load limiting (0–110% rated load, prevents overload){insert\_element\_2\_}. It uses 3 independent MPU channels for speed validation, with overspeed protection (115–120% rated speed) and MPU open-line detection. The controller includes load shed relays, reverse power protection, and event logging (1000 events) for post-trip analysis. Front-panel LEDs (Power: green; Channel Active: amber; Alarm: blue; Fault: red) and a fault relay enable on-site/remote monitoring, with H2S/SO2-resistant conformal coating (optional) for oil & gas/petrochemical applications.
• Control Modes: Isochronous (0% droop); droop load sharing (2–10%); load limiting (0–110% rated load) • Protection Logic: Overspeed (115–120% rated speed); reverse power; MPU fault; overtemp; under/overvoltage • Monitoring: 4–20 mA speed/load output; LEDs; fault relay; event log; Modbus diagnostics • Testing: MPU open-line detection; relay contact monitoring; load sharing calibration
4. Communication Protocols & Configuration
The 8273-140 integrates with DCS/SCADA via Modbus RTU (RS-485) for remote speed/load monitoring and control, with 4–20 mA analog outputs for direct controller interface. Configuration uses the 2301D Configuration Software (Windows) for mode selection, droop setting, load limits, and firmware updates, with front-panel pushbuttons for local mode switching and setpoint adjustment. It supports plug-in terminals for power, MPU inputs, and outputs, with a backplane structure for module expansion (AI/AO/DI/DO). It also integrates with Woodward synchronizers (e.g., SPM-A) for seamless generator paralleling, ensuring voltage/frequency/phase alignment{insert\_element\_3\_}.
• Protocols: Modbus RTU (RS-485); 4–20 mA analog; relay outputs; front-panel serial (RS-232) • Configuration: 2301D Software; front-panel pushbuttons; DIP switches; config backup/restore • Integration: DCS/SCADA; synchronizers; HMI; generator protection relays; ISO 8528 systems • Remote Access: Modbus diagnostics; event log download; firmware updates via RS-485
5. System Integration & Industrial Applications
The 8273-140 mounts in standard 19-inch cabinets (panel mount) with plug-in terminals for power, MPU inputs, and outputs, integrating with DCS/SCADA via Modbus RTU and 4–20 mA. It is ideal for power generation (diesel/gas generators), oil & gas (drilling platforms), marine (shipboard power), and industrial cogeneration—where precision speed control and parallel load sharing are critical. It complies with ISO 8528, CE, UL, and IEC 61508 SIL 2 (optional), with a 12-month Woodward warranty and global technical support. The controller offers a seamless upgrade path to 2301D-EC (enhanced communication) for future expansion.
• Integration: DCS/SCADA; synchronizers; HMI; generator protection relays; ISO 8528 systems
• Mounting: Panel mount (250×180×100mm); plug-in terminals; IP20; 19-inch cabinet
• Certifications: CE, UL, ISO 8528, IEC 61508 SIL 2 (optional), RoHS
• Applications: Diesel/gas generators; power generation; oil & gas; marine; industrial cogeneration
6. Installation, Maintenance & Troubleshooting
Installation: Panel mounting; MPU wiring (3 magnetic pickups); 24 Vdc power input; DIP switch addressing; LED verification (Power=green).
Configuration: 2301D Software for modes/droop/limits; backup config; integrate with DCS/SCADA.
Maintenance: 6-month visual inspection; 12-month MPU calibration; fault diagnosis via LEDs/Software.
Troubleshooting: Red Fault LED = power/MPU/overtemp; check power first; verify MPU continuity; use Software for fault codes.
Replacement: Plug-and-play module; pre-saved config for minimal downtime; 12-month warranty.
YMGK Purchase Information
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- 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.
For additional inquiries, reach out to us at any time.
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Technical Documentation | Woodward 8273-140 (2301D) | Digital Load Sharing & Speed Control
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