Woodward 9907-1290 Digital Speed Controller

Precise Control: Using digital control technology, it can achieve high-precision speed control, automatically adjust the engine speed according to actual operation requirements, and ensure the equipment operates in the optimal state.

Rapid Response: With good dynamic response characteristics, it can quickly respond to load changes, promptly adjust the engine speed, maintain speed stability, and reduce speed fluctuations.

Stable and Reliable: Adopting industrial-grade components and advanced circuit design, it has strong anti-interference capability and can work stably in harsh industrial environments. Meanwhile, it is equipped with rich protection functions, including overload protection, overheat protection, undervoltage protection, etc., which can effectively prevent the equipment from being damaged under abnormal conditions.

Intelligent Management: It can real-time monitor the equipment's operating status, including parameters such as speed, load, and temperature, and provide them to users through the user interface or communication interface, facilitating users to conduct fault diagnosis and maintenance.

Convenient Installation: With a modular design, the installation process is simple and quick. Through simple parameter settings, users can flexibly configure the speed controller according to actual application requirements to meet different control needs.

Power Requirement: Usually requires a nominal power supply of 24V DC.

Communication Interfaces: May support communication interfaces such as RS-232, RS-422, and RS-485 to enable data transmission and communication with other devices, achieving remote monitoring and management.

Operating Temperature Range: Generally, it can work normally within a wide temperature range. The specific range may vary depending on product specifications, but it usually meets the requirements of most industrial environments.

Output Signals: Outputs control signals proportional to the fuel setting to drive actuators. Common output forms include analog signals (such as 4-20mA, 0-10V, etc.) or digital signals (such as relay signals).

Hardware Connection Issues:

Cause: Loose RS485/232 cables, oxidized or damaged interfaces, and electromagnetic interference due to poor grounding.

Solution:

Parameter Configuration Errors:

Cause: The baud rate, data bits, parity bits (such as odd/even parity) do not match the upper computer.

Solution:

Protocol Compatibility Issues:

Cause: MODBUS RTU slave address conflict or incorrect communication frame format.

Solution:

Improper PID Parameter Settings:

Cause: The proportional (P), integral (I), and derivative (D) parameters are not optimized according to the load characteristics, resulting in system oscillation or slow response.

Solution:

Output Circuit Faults:

Cause: The analog output module is damaged, or loose wiring terminals cause signal attenuation.

Solution:

Actuator Faults:

Cause: The actuator is stuck, the motor is burned out, or the feedback sensor fails, causing the controller's output to be disconnected from the actual action.

Solution: