Woodward 8273-101 2301D Speed Control for Generator Sets
Manufacturer: Woodward
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Part Number: 2301D 8273-101
Condition：New with Original Package
Product Type: Speed Control Modules
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Overview
The Woodward 8273-101 2301D Digital Control governs speed and load sharing for prime movers such as diesel engines, gas turbines, or steam turbines. This unit manages complex synchronization and load distribution between multiple generator sets. We supply this product as 100% brand new and original, ensuring it meets strict factory standards for critical power applications.
Technical Specifications
| Parameter | Technical Data |
| Model Number | 8273-101 |
| Input Supply | 18–32 VDC (Nominal 24 VDC) |
| Frequency Range | 0.5 Hz to 25 kHz |
| Speed Input | Magnetic Pickup (MPU) or Active Sensors |
| Actuator Drive | 0–200 mA DC (Current/Voltage options) |
| Analog Inputs | 2–4 Channels (4–20 mA / 0–10 V) |
| Discrete Inputs | 6–8 Programmable dry contact inputs |
| Communication | RS-485 Modbus RTU / Optional CANbus |
| Operating Temp | –40 °C to +70 °C |
| Housing Rating | NEMA 1 / IP20 |
Engineering Advantages
Precision PID Speed Regulation
The 8273-101 utilizes advanced digital PID algorithms to eliminate the drift and calibration sensitivity found in legacy analog governors. This ensures the prime mover maintains high-frequency stability even during sudden, large-scale load rejections or additions.
Dual Control Modes
The module operates in either Isochronous mode for constant speed frequency or Droop mode for load-dependent regulation. This versatility allows the control to integrate into both standalone island grids and complex parallel utility connections.
Superior EMI/RFI Protection
Engineered for the electrically noisy environments of engine rooms and turbine halls, the circuitry resists high-frequency interference. By following the required <4 Ω grounding specification, the module maintains clean communication signals over RS-485 Modbus networks.
Optimized Start-up Logic
The control includes dedicated "Idle," "Start-up," and "Warm-up" modes. These features prevent thermal stress on the turbine or engine by managing acceleration ramps before the system assumes full load-sharing responsibilities.
FAQs
Can the 8273-101 directly replace older analog 2301A units?
Yes, the 2301D series provides a digital upgrade path for 2301A applications. However, engineers must re-verify wiring and perform fresh PID tuning, as digital parameters behave differently than analog potentiometer settings.
What type of speed sensor does this module support?
This module accepts signals from standard Magnetic Pickups (MPU) or active speed sensors. It processes frequency inputs ranging from 0.5 Hz up to 25 kHz, supporting a wide variety of flywheel gear tooth counts.
Is this unit compatible with high-voltage power supplies?
No, the 8273-101 operates strictly on a low-voltage DC range (18–32 VDC). Connecting this unit to AC mains or higher DC voltages will cause permanent damage to the internal power supply board.
How does the unit handle communication for remote monitoring?
The 8273-101 includes an RS-485 port supporting Modbus RTU protocol. This allows the DCS or PLC to monitor engine speed, load percentage, and fault status in real-time without additional transducers.