The product is a ABB ACS355 transducer that is fed back to a 4-20MA output pressure sensor that is controlled by an instrument and made automatically by an PID regulator
Your pressure sensor makes the PID feedback value. The pressure is given at PID, and the PI is OK, D=0
To do the closed-loop control of the inverter, to enter the settings menu, set the type of input signal, the upper limit of the range, the lower limit, the control value and many other parameters, to carefully look at the instructions will be clear.
Just look at the instructions! Generally: 4-20mA pressure signal is connected to frequency converter current input terminal, the maximum frequency of inverter is set 50Hz, minimum frequency is set 0Hz, frequency converter startup mode is set for external terminal to start, and PID parameter is set.
