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8230-883 - Digital Remote Final Driver is available in stock which ships the same day.
8230-883 - Digital Remote Final Driver comes in UNUSED as well as REBUILT condition.
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SPECIFICATIONS:
Part Number: 8230-883
Manufacturer: Woodward
Series: Digital Remote Final Driver (DRFD)
Product Type: Actuator Driver Module
Input Signal: Digital Communication (LinkNet / CAN / Custom)
Output Signal: 0–200 mA / 4–20 mA Actuator Drive
Input Voltage: 18–32 VDC (24 VDC Nominal)
Operating Temperature: -40 °C to +70 °C
Mounting: Remote / Enclosure Mounted
Isolation: Fully Isolated Signal and Power Paths
Weight: 1.5 kg
Availability: In Stock
Country of Origin: United States
FUNCTIONAL DESCRIPTION:
The 8230-883 Digital Remote Final Driver (DRFD) is a high-performance power electronics module designed to bridge the gap between a centralized control system and remote fuel-regulating actuators. It acts as a distributed control node, receiving high-level digital positioning commands and converting them into the precise analog current required to drive electromagnetic actuators. By locating the final driver closer to the actual turbine or engine, the Driver module minimizes the risk of signal degradation and electrical noise interference over long cable runs. This module is essential for modern high-efficiency turbine control where rapid, high-resolution fuel valve positioning is a prerequisite for system stability.
PRECISION ACTUATION AND DISTRIBUTED CONTROL:
The Driver module utilizes advanced digital-to-analog conversion circuitry to provide a highly accurate current output, typically ranging from 0 to 200 mA. This precision ensures that fuel valves and steam nozzles respond instantly to the Master CPU’s commands, enabling tighter control of engine speed and exhaust emissions. Because it operates as a Remote driver, it reduces the complexity of the main control cabinet’s wiring, distributing the thermal load and processing power across the industrial network. The module can maintain its calibrated output under varying input voltages and ambient temperatures, ensuring consistent performance across the entire operating envelope.
SYSTEM SAFETY AND FAIL-SAFE FEATURES:
Safety is a primary design consideration for the Driver module. The module features integrated Loss of Communication logic. If the digital link to the main controller is severed, the driver can be configured to automatically drive the actuator to a pre-defined safe position (e.g., Fail-Minimum Fuel). It also includes comprehensive fault-monitoring capabilities, detecting issues such as open-circuit actuators, short-circuits, or internal over-temperature conditions. These diagnostics are reported back to the central control system, providing maintenance personnel with precise information to quickly address field-side hardware issues.
AVAILABILITY AND SUPPORT:
World of Controls provides the 8230-883 Digital Remote Final Driver in both unused and professionally rebuilt conditions. Every unit is subjected to rigorous load-profile testing to ensure the output current remains linear and stable throughout its full range. We offer a comprehensive warranty on all units and provide 24/7 technical support for system integration, calibration, and field troubleshooting. Our global logistics network is optimized for the rapid delivery of critical control components, helping you maintain maximum uptime for your power generation or mechanical drive facility.
What is the Woodward 8230-883?
It is a Digital Remote Final Driver used to convert digital positioning commands into analog current for actuator control. It is designed to be mounted remotely from the main control chassis to improve signal integrity and simplify field wiring. It serves as the final link in the control chain between the CPU and the fuel valve.
What is the primary use of the Woodward 8230-883?
The module is primarily used in distributed control architectures for gas and steam turbines. Its role is to drive large electromagnetic actuators with high precision, ensuring that fuel or steam delivery matches the requirements of the control algorithm. Sitting close to the actuator, it ensures the control signal remains clean and responsive.
How does the Remote feature benefit the control system?
By moving the final driver functionality out of the main chassis and closer to the engine, the system reduces the amount of heavy-gauge analog wiring required over long distances. This reduces the system susceptibility to electromagnetic interference (EMI) and improves the overall resolution and speed of the actuation loop.
What happens if the 8230-883 loses its digital signal?
The module is equipped with a fail-safe configuration that triggers if communication with the master controller is lost. Depending on the system setup, it will typically drive the actuator to a minimum fuel or shutdown position to prevent uncontrolled operation. This protective feature is essential for preventing overspeed or over-temperature events.
