Woodward 8440-1546H Speed Controller

Wide Application: Suitable for speed control of various power equipment such as diesel engines, gas engines, steam turbines, or gas turbines. It is applied in scenarios including generator sets, compressors, pump stations, ships, and locomotives.

Flexible Signal Input: Can set equipment speed or load based on computer control signals of 4-20mA or 1-5Vdc, providing users with multiple options to meet different control requirements.

Diverse Working Modes: Features two working modes: isochronous regulation and droop regulation.

High Integration: Can work collaboratively with a range of Woodward equipment, such as power automatic transfer switches, input-output controllers, and generator load controllers, to achieve comprehensive system control.

Rich Functions: In addition to basic speed or load control functions, it also has functions such as synchronization or deceleration control, high-low speed adjustment, and fuel-limited overspeed start.

High-precision Output Signal: The controller provides output signals proportional to the fuel setting required to achieve the desired speed/load, ensuring precise control.

In isochronous regulation mode, it strives to maintain the constant speed of the equipment.

In droop regulation mode, it automatically adjusts the speed according to load changes to achieve reasonable load distribution when multiple devices are operated in parallel.

Input Signal: Supports 4-20mA or 1-5Vdc computer control signals for setting equipment speed or load, and can receive signals from various speed sensors (such as magnetoelectric, Hall-type sensors) to monitor the actual speed of the equipment.

Output Signal: Outputs signals proportional to the fuel setting required to achieve the desired speed/load, which can be analog (such as 4-20mA, 0-10V) or digital (relay outputs) to drive actuators like fuel valves and servo motors.

Working Modes: Two working modes: isochronous regulation and droop regulation.

Communication Interfaces: May support protocols such as RS-232/485, Modbus, and Ethernet for convenient communication and data interaction with upper computers or other devices. It is compatible with SAE-J1939, Modbus RTU, etc., and can seamlessly interface with engine ECUs and SCADA systems.

Operating Temperature: Rated operating temperature range: -20°C to 70°C.

Dimensions and Weight: Approximately 16cm×16cm×12cm, weighing about 0.8kg.

Others: Equipped with a built-in Human-Machine Interface (HMI) with a color LCD screen and soft keys, featuring multi-level password protection to prevent unauthorized changes; has three freely configurable PID controllers, providing input and output control (kW and kvar), as well as MCB and GCB synchronization (slip/phase matching) functions.

Power Generation Field: Precisely controls the speed of engines in diesel generator sets and gas generator sets to ensure stable voltage and frequency output from the generator, meeting the quality requirements of power supply. For parallel operation of multiple generator sets, it achieves balanced load distribution through droop regulation mode, improving the reliability and efficiency of the power generation system.

Industrial Power Field: Used for speed control of driving engines or turbines of equipment such as compressors and pumps, ensuring stable operation of these devices and providing stable power output to meet various needs in industrial production processes.

Marine Power Field: Controls the speed of marine main engines and achieves propeller load matching, ensuring that ships can obtain appropriate power under different working conditions (such as navigation, berthing, anchoring, etc.), improving ship operation performance and economy.

Inaccurate Speed Control: May be caused by speed sensor failure, unreasonable PID parameter settings, or actuator failure.

Communication Failure: If communication with other devices (such as the upper computer monitoring system) fails, it may be due to damaged communication interfaces, inconsistent communication protocol settings, or communication line failures.

Power Failure: If the device cannot start normally or works abnormally, it may be due to power input failure.