English to Russian Tech/Engineering Computers (general) The PID Controller Model

Proportional action is used to influence the process response speed. The higher the gain, the faster the response, and the lower the static error (in direct proportion), though the more stability deteriorates.

Integral action is used to cancel out static error (deviation between the process value and the set point). The higher the level of integral action (low Ti), the faster the response and the more stability deteriorates