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Woodward 5501-470 Digital Servo Controller

1. Technical Specifications
• Input Voltage: 24 VDC (18–36 V range tolerated)
• Operating Temperature: −20 °C to +70 °C
• Control Output Types: PID, motion, speed and position loops
• Digital Outputs: relay or open-collector, rated 0.5 A at 24 V
• Analog I/O: 4–20 mA current loop, 0–10 V or ±10 V, 12-bit resolution
• Communication Ports: RS-232/RS-485, Modbus RTU, optional Ethernet or CANopen
• Processor: 32-bit ARM-based core, cycle time < 1 ms
• Memory: 470 kB non-volatile for program and data logging
• Dimensions: 125 mm × 120 mm × 90 mm; DIN-rail or panel mount
• Enclosure: IP20 front, IP54 rear with cover kit; vibration-resistant to 5 g

Detailed content

2. Functional Highlights
• Multi-function control: combines PID regulation, motion and speed control in one module
• High-precision feedback handling: accepts resolver, encoder or analog tach signals
• Programmable via Woodward GAP or ServLink software; ladder or function-block style
• Expandable I/O: snap-on digital and analog expansion blocks up to 64 additional channels
• Real-time diagnostics: status LEDs, fault log with time stamp, remote alarm relay
• Hot-swappable terminal blocks for maintenance without removing the module
3. Application Scenarios
• Gas turbines: speed/load control, temperature and pressure feedback loops
• Power generation: governing diesel, gas and steam turbine-generator sets
• Industrial drives: pumps, fans, compressors, extruders requiring precise speed/torque control
• Marine propulsion: main engine and thruster speed regulation for safe navigation
• Steel and cement plants: rolling-mill and kiln drive control, optimizing energy use
• Paper mills: sectional drive synchronization, tension and speed control
4. Installation & Support
• Supplied with DIN-rail clip, panel-mount adapter and 24 VDC spring-cage connector
• Firmware upgrade via front USB port or remote Modbus download
• Compatible with Woodward MicroNet Plus, DCS and PLC backplanes
• Global service network offers calibration, repair and extended warranty programs

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