Woodward 8901-457 Digital Speed Controller

Overview

The Woodward 8901-457 is a two-loop digital speed controller designed for high-performance engines and turbines. It precisely controls speed, load, and process variables. This controller suits diesel engines, gas turbines, and generator sets. It fits applications like prime power, marine propulsion, and CHP systems. Additionally, it offers dual-channel redundancy and adaptive tuning for reliable operation. Robust environmental protection ensures performance in harsh conditions. Multiple communication options simplify integration with control systems.

Technical Specifications

• Control Loops: Speed, Load, Process

• Speed Input: Magnetic pickup (60–12,000 Hz)

• Output Signals: 4–20 mA, ±20 mA, PWM

• Power Supply: 10–35 VDC

• Accuracy: ±0.25% steady-state speed regulation

• Response Time: Adjustable, 0.1–20 seconds

• Operating Temperature: –40°C to +85°C

• Protection Rating: IP52 (optional NEMA 4X)

• Mounting: Panel-mounted, Euro-style terminal block

• Communication Interfaces: Modbus RTU, CANbus, RS-232 / RS-485

• Diagnostics: Predictive monitoring for actuators and speed sensors

• Redundant Ethernet: Yes, for continuous operation

• Certifications: CE marked, shock-resistant (up to 15g RMS)

• Weight: 1.20 lbs