MCT8316A: PI Speed Control

Tool/software:

Hi,

We are currently evaluating the MCT8316A motor controller and we have encountered a limitation with the integrated PI speed controller for our application. We understand that the available gain ranges are:

• Kp: from 0 to 0.1023
• Ki: from 0 to 0.004095

These constraints prevent us from achieving the desired dynamic response from the motor. As a result, we are considering implementing the PI speed control externally using a separate microcontroller.

However, we have some concerns regarding the internal acceleration and deceleration rate limitations of the MCT8316A, which we believe might interfere with the external control loop.

We would appreciate your guidance on the following points:

1. Is it possible to implement an external PI speed controll in a external microcontroller using MCT8316A?
2. What are the recommended settings for acceleration and deceleration rates to ensure minimal impact on the external control loop?
3. Are there any additional considerations or best practices we should follow to ensure stable and responsive motor behavior under external PI control?

Thank you in advance for your support. We look forward to your recommendations.

Regards