Woodward 8404-304 ProAct Positioner (16 pin), 3rd Generation

Desciption

The 8273-140 is a digital speed regulator belonging to the Woodward brand. It is widely used in the field of industrial automation, especially in systems that control complex production processes.

The 8273-140 digital governor has a variety of control modes, which can be selected according to different application scenarios. In addition, it also has overload protection function, which can prevent motor overload damage. The 8273-140 digital governor also has remote control and monitoring functions, and can communicate with the host computer through the communication interface.

In the field of industrial automation, 8273-140 digital governor is widely used in speed control and position control of various motors, which can improve production efficiency and product quality.

New PID algorithm and adaptive velocity sensing filter

The PID changes give the 2301 D better control over slow and medium speed engines.

The speed sensor, as it measures speed, will only send an output to the PID with a new speed only if the engine speed E has actually changed. This helps control the low-speed engine.

Adaptive speed sensors learn or adapt to any anomalies in gear teeth, torque and slow fire frequencies.

There are now three ways to choose the speed sensing mode:

1 For medium and high speed engines. The MPU frequency usually used for this type of speed sensing is 1000 Hz. And above. MPU gear is divided into 16 parts; As a result, speed is perceived and updated once every

1/16 - a complete engine revolution.

4. Each timing pulse of the speed sensor can sense the speed. The feature is specifically designed to provide readings at low speeds. The speed is calculated only by using the time interval between the two teeth. This function measures every

Time between teeth and store the results of the two most recent measurements. The block samples and averages these two measurements each time the block is executed, and uses the average to calculate the speed.

5 is an adaptive speed sensing filter specially designed []. The filter will provide stable speed sensor readings:

- Medium to low engine speed.

- Frequency of engine torsion caused by engine ignition frequency or various engine loads.

- MPU signal noise caused by gear running out, irregular gear tooth shape or irregular flywheel hole arch .

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