Product Description
Woodward 9905-970 2301D Load Sharing and Speed Control
Product Overview
- The Woodward 9905-970 is a 2301D Load Sharing and Speed Control designed for precise speed regulation and load sharing of diesel, gas, or dual-fuel engines in generator set applications, such as power generation, marine propulsion, and industrial systems.
Technical Specifications
- The 9905-970 has the following specifications based on industry sources and Woodward documentation:
| Specification | Details |
|---|---|
| Model/Part Number | 9905-970 |
| Manufacturer | Woodward |
| Description | 2301D Load Sharing and Speed Control for Engines |
| Series | 2301D |
| Function | Regulates engine speed and enables load sharing for generator sets |
| Processor | Microprocessor-based (specific architecture not publicly detailed) |
| Memory | Flash: 4–8 MB (for firmware and configuration) RAM: 2–4 MB (for runtime data) |
| Display | No onboard display; LED indicators for status and faults; configuration via external PC or HMI |
| Inputs | 2 speed inputs (magnetic pickup or proximity probes, 0.5–15 kHz) 4 analog inputs (configurable for 4–20 mA or 0–5 V, e.g., remote setpoint, load sensor) 4 discrete inputs (24 VDC, for start/stop, reset, or mode selection) |
| Outputs | 1 actuator output (0–200 mA or 4–20 mA, compatible with Woodward actuators) 2 analog outputs (4–20 mA, for speed or load monitoring) 3 relay outputs (dry contact, up to 250 VAC/2 A, for alarms or trips) |
| Communication Interfaces | 1 serial port (RS-232 or RS-485, Modbus RTU) 1 CANbus port (for load sharing or system integration) USB (for configuration and diagnostics) |
| Control Modes | Isochronous, droop, load sharing |
| Speed Regulation Accuracy | ±0.25% of rated speed (steady-state) |
| Protection Functions | Overspeed protection, actuator fault detection, loss of speed signal |
| Redundancy | Non-redundant |
| Diagnostics | Fault detection, event logging (up to 100 events), status LEDs, real-time monitoring via Modbus or CANbus |
| Compatibility | Woodward actuators (e.g., EGB, UG-8, ProAct, 8408-921), magnetic pickups, proximity probes; integrates with Woodward synchronizers (e.g., SPM-A, 8440-1706), genset controllers (e.g., EasyGen, EGCP-2), and SCADA systems; supports third-party devices via Modbus RTU |
| Power Supply | 18–40 VDC (24 VDC nominal) |
| Power Consumption | Approx. 10–15 W |
| Environmental Specifications | Operating Temperature: -40°C to +70°C (-40°F to +158°F) Storage Temperature: -40°C to +85°C (-40°F to +185°F) Relative Humidity: 5% to 95% non-condensing Vibration: IEC 60068-2-6 compliant Shock: IEC 60068-2-27 compliant |
| Enclosure | IP20 (requires enclosure for harsh environments) |
| Dimensions | Approx. 330 mm (H) x 190 mm (W) x 90 mm (D) |
| Weight | Approx. 1.5–2 kg |
| Mounting | Panel-mounted or chassis-mounted (via mounting brackets) |
| Certifications | CE, UL, CSA, marine certifications (e.g., DNV, ABS, configuration-dependent); ATEX/IECEx Zone 2 (optional) |