There is a frequency converter, the manual has PID constant pressure water supply example, circuit diagram such as upload. I have a pressure sensor and pressure digital watch has been coordinated, the pressure digital meter out of the four lines, black and white... (forget what specific color), anyway, one is connected to change negative, one is connected to change, positive, a power supply is positive, a power supply negative. My problem is that the pressure meter shows the change of the negative line to the terminal of the converter. What is the positive line and the terminal of the converter?My circular digital pressure meter is: brand YOTO, model DU4S, sensor specification is: PG-2 210-M-0.2MPa-P1
PID wants to change the parametersParameter should be changed to terminal controlFeedback connected to V I GND
It depends on whether the pressure gauge output is a voltage or a current signal. General delivery is to receive your diagram on the I, negative GND can be changed.Questions may also be asked by the manufacturer.
Fuji inverter?The transmitter is negative GND, which is connected to I (current signal) or V (voltage signal).
