Product Description
Woodward 8235-650 ProAct Digital Speed Control System
Product Overview
- The Woodward 8235-650 is a ProAct Digital Speed Control System, designed for precise speed regulation of engines, particularly diesel or gas engines, in industrial applications such as power generation, marine propulsion, locomotives, and industrial processes. This microprocessor-based control unit integrates with Woodward’s ProAct actuators to provide accurate speed control, load sharing, and protection for reciprocating engines. The 8235-650 is part of the ProAct series, known for its reliability, flexibility, and advanced diagnostics, making it suitable for both new installations and retrofits. It is distinct from Woodward’s 505D series (e.g., 8200-1300), Peak150 series (e.g., 8200-176), and MicroNet systems (e.g., 5541-693), focusing on engine speed control with a compact, robust design for demanding environments.
Technical Specifications
- The 8235-650 has the following specifications
| Specification | Details |
|---|---|
| Model/Part Number | 8235-650 |
| Manufacturer | Woodward |
| Description | ProAct Digital Speed Control System for Engines |
| Series | ProAct |
| Function | Controls speed and load for diesel or gas engines |
| 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 | None (configuration via PC interface or external HMI) |
| Inputs | 2 speed inputs (magnetic pickup or proximity probes) 4 analog inputs (4–20 mA or 0–5 V) 8 discrete inputs (24 VDC) |
| Outputs | 2 analog outputs (4–20 mA) 4 relay outputs (dry contact) 1 actuator output (compatible with ProAct actuators, 4–20 mA or 0–200 mA) |
| Communication Interfaces | 1 serial port (RS-232 or RS-485, Modbus RTU) CANopen (optional) |
| Control Modes | Speed control, isochronous or droop operation, load sharing |
| Redundancy | Non-redundant |
| Diagnostics | Fault detection, event logging (up to 200 events), status LEDs |
| Compatibility | Woodward ProAct actuators (e.g., ProAct I, II), speed sensors, and third-party devices via standard protocols; integrates with SCADA systems |
| Power Supply | 18–32 VDC (24 VDC nominal) |
| Power Consumption | Approx. 10–20 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: MIL-STD-810 compliant Shock: MIL-STD-810 compliant |
| Enclosure | IP20 (panel-mounted, higher IP ratings with enclosures) |
| Dimensions | Approx. 200 mm (H) x 150 mm (W) x 100 mm (D) |
| Weight | Approx. 1.5–2 kg |
| Mounting | Panel or DIN rail |
| Certifications | CE, UL, CSA, ATEX Zone 2 (for hazardous areas, configuration-dependent), marine certifications (e.g., DNV, ABS) |