Description
The Woodward 5501-470 is a high-performance digital speed control and driver module engineered for precise regulation of prime movers, including industrial gas turbines, steam turbines, and large diesel engines. Designed for high reliability in demanding industrial environments, this module offers advanced processing capabilities to accept multiple sensor inputs and deliver accurate actuator control signals, ensuring optimal system efficiency and operational safety.
Technical Specifications and Datasheet
- Manufacturer: Woodward
- Part Number: 5501-470
- Product Type: Digital Control Module / Speed Governor
- Dimensions: 15.2 cm x 10.8 cm x 3.5 cm (6.0 in x 4.25 in x 1.38 in)
- Weight: 0.68 kg (1.5 lbs)
- Country of Origin: USA
- Power Requirements: 18-32 VDC (24 VDC Nominal), 15W maximum power consumption
- Operating Temperature: -40°C to +70°C (-40°F to +158°F)
- Inputs: Magnetic Pickup (MPU) inputs, Proximity switches, 4-20 mA analog inputs
- Outputs: Proportional actuator driver outputs (0-200 mA), Configurable relay outputs
Application Fields
The Woodward 5501-470 is widely utilized across critical power generation and industrial automation sectors:
- Power Generation Plants: Managing speed and load control for steam and gas turbine generators.
- Oil & Gas Industry: Controlling compressor and pump drive systems in both onshore and offshore facilities.
- Marine Propulsion: Regulating large diesel engines for reliable marine vessel propulsion and auxiliary power.
- Industrial Manufacturing: Overseeing mechanical drive turbines in chemical processing and steel mills.
Product User Instructions
- Mounting and Installation: Securely mount the module within a clean, dry, and vibration-attenuated industrial enclosure. Ensure adequate clearance around the unit for natural convection cooling.
- Wiring Guidelines: Use shielded, twisted-pair cabling for all sensor inputs (especially MPU speed signals) and actuator outputs to mitigate electromagnetic interference (EMI). Connect the shield to the designated chassis ground at the control end only.
- Power Allocation: Connect a stable 24 VDC power source. Installing an external fast-acting fuse rated for the system’s maximum draw is highly recommended to protect internal circuitry.
- Commissioning & Calibration: Utilize the dedicated Woodward configuration software or handheld programmer to set initial PID parameters, overspeed limits, and actuator current ranges prior to starting the prime mover.
Frequently Asked Questions (Q&A)
Q1: What should I check if the module is not receiving a speed signal? A1: Verify the physical alignment and clearance of the Magnetic Pickup (MPU) sensor relative to the gear wheel. Additionally, measure the AC voltage output from the MPU across the terminal; it must meet the minimum threshold voltage specified in the system manual during cranking.
Q2: Can the 5501-470 module handle redundant configurations? A2: Yes, this model can be integrated into redundant system architectures where dual-channel reliability is required for critical asset protection.
Q3: How do I handle a “Loss of Speed Signal” fault? A3: Check for continuity along the sensor cable and inspect the wiring for loose connections. If the wiring is intact, check the software configuration to ensure the minimum speed cutout threshold is properly matched to your engine’s cranking profile.
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