Description
The Woodward 8446-1019 is a microprocessor-based digital controller and speed governing module manufactured by Woodward, Inc. It is engineered for industrial prime movers, including gas and steam turbines, providing precise speed regulation, data acquisition, and active management within complex power generation and mechanical drive systems.
Technical Specifications
| Parameter | Value |
| Manufacturer | Woodward, Inc. |
| Product Type | Digital Speed Controller / Control Module |
| Part Number (MPN) | 8446-1019 |
| Operating Voltage | 24 VDC nominal (18 to 32 VDC operational range) |
| Power Consumption | < 10 W nominal |
| Control Accuracy | \pm0.05% of rated speed (application dependent) |
| Input Signals | Magnetic pickup (MPU) speed sensors, analog command loops, and discrete inputs |
| Output Signals | 4–20 mA analog control current, PWM, and relay trip/status contacts |
| Operating Temperature | -40 to +85 °C |
| Enclosure Protection | IP20 standard (intended for internal mounting within an enclosed control cabinet) |
| Dimensions | Approx. 152 mm × 102 mm × 38 mm (6.0″ × 4.0″ × 1.5″) |
| Approximate Weight | 0.23 kg (0.5 lbs) |
Supply Terms & Commercial Details
- Availability: Sourced through specialized industrial automation surplus, turbine control distributors, and legacy parts suppliers.
- Lead Time: In-stock hardware typically ships within 1 to 3 business days.
- Warranty: 12-month standard supplier replacement or repair warranty covering functional hardware defects.
- Condition: New Surplus, Factory Open Box, or Fully Tested Refurbished (verify specific packaging and test logs with your vendor prior to purchase).
- Pricing Note: Price subject to market conditions; contact us for a firm quote.
Engineering & Integration Guidance
When installing or replacing the 8446-1019 module within a control panel or turbine governing skid, observe the following technical parameters:
- Power Supply Regulation: Ensure the 24 VDC input power source is clean, regulated, and isolated from high-inductive switching spikes to prevent controller reboots or communication dropouts.
- Sensor Wiring and Shielding: Terminate magnetic pickup (MPU) signal cables and analog control loops using properly grounded shielded twisted-pair (STP) wiring to minimize electromagnetic interference (EMI) from adjacent variable frequency drives or high-voltage switchgear.
- Electrostatic Discharge (ESD) Handling: Use a grounded antistatic wrist strap and handle the module carefully by its faceplate and frame edges to protect sensitive internal microprocessors from electrostatic breakdown.
Frequently Asked Questions
What system applications use the Woodward 8446-1019?
This module is deployed primarily in heavy-duty industrial gas and steam turbine management systems, compressor skids, and power generation generator sets requiring precise digital speed governing.
Can this module be hot-swapped?
No. Standard industrial control panel procedures require a complete system power-down of the rack or cabinet bus before removing or installing internal control hardware.
How are configuration parameters managed on this unit?
Configuration parameters, tuning loops, and calibration maps are managed via Woodward’s dedicated software toolsets and communication interfaces linked directly to the controller architecture.
