A pressure sensor, a MITSUBISHI inverter, a pump can achieve constant pressure water supply? How do I set parameters?
The frequency converter should be the vector converter, and in order to direct the sensor according to the function
You also need an PID table
To do a closed-loop control loop, the pressure sensor connected to the inverter, through the relationship between pressure and frequency, control the pump speed can be.Note the main points: 1. establish a mathematical model that describes the correspondence between pressure changes and frequency changes.2., the control function must converge.
The pressure sensor measures the pressure and sends the 4-20mA signal to the converterIn the frequency converter, there must be the flow pressure relationshipAfter the frequency converter receives the signal, through the adjustment water pump rotational speed, the control flow change, thus realizes the constant pressure water supply.Specific parameters to refer to the specifications of the frequency converter, the general idea is this.Hope to be of help to you.
