Product Overview
The Woodward 5464-659 Digital Speed Sensor is a smart I/O module designed for the MicroNet Digital Control platform. It uses an on-board microcontroller to perform power-on self-tests and automatic calibration. The module handles rate-group scheduling with minimal CPU intervention, reducing processing load. Ideal for precise speed sensing and actuator control in turbine and industrial applications.
Industry Applications
The Woodward 5464-659 finds use in gas and steam turbine control systems where accurate speed measurement is critical. It also integrates into actuator driver modules that control hydromechanical or pneumatic actuators. Each channel can manage integrating or proportional actuators with up to two position feedback devices. The module's smart fault detection ensures reliable operation in harsh environments.
Installation & Setup
Install the Woodward 5464-659 into a MicroNet chassis using the appropriate slot. Use only a MicroNet low-density discrete (gray) cable; do not use an analog (black) cable. The module has a visible, field-replaceable fuse accessible through a cutout in the plastic cover. All wiring must comply with local electrical codes. After installation, the module's microcontroller performs a self-test and turns off the LED upon success.
Maintenance & Reliability
The Woodward 5464-659 includes on-card fault detection and automatic temperature compensation. Each input channel has a precision voltage reference that the microprocessor reads once per minute for calibration. If a reading falls outside expected limits, the channel is flagged as faulty. The output driver monitors voltage and current, alerting the system to any load faults. Replace blown fuses with the same type and size to maintain protection.
Selection Guide
When ordering the Woodward 5464-659, verify compatibility with your MicroNet Digital Control system. The module part number indicates maximum output current capability. For reliable sourcing, choose a trusted supplier like PLC Source PRO. Visit ubest101.myshopify.com for inventory and fast shipping. Ensure your application matches the 0-25 mAdc or 0-200 mAdc output range.
Troubleshooting Common Issues
If the FAULT LED is illuminated, the module has detected an internal error. Check the fuse and replace if blown. If a channel fault occurs, the system takes action as programmed. The LED turns off after successful initialization. Use the self-test to verify proper operation. The microcontroller reads voltage references once per minute to catch drift early.