And add 3 Kp (70), Kp (80), and Kp (100) values for testing. In this test, the behavior of the system in Risetime and Setting will be considered. Time and% OS found that Kp (80) is the optimal value, and further testing was conducted by adding Kd. The optimal value is Kp (80), Kd (1.2) and Kd (2). This test result will consider the system's behavior in setting time, setting time, and% OS. Kp (80) Kd (1.2) is the optimal value for fine-tuning the gain of the PID control system.