Hi 

I have a simple project using a pressure sensor with a on and off set point ( see attached software )

The system has two pumps one duty and one standby

circulating the water at set-point 1 and then on demand set-point 2 

I want to do the following within the project.

1. If the pressure drops below a certain set point then the inverter drive will ramp up from its set point to then maintain the pressure returning to its set-point 

2. if the duty pump cant maintain the pressure the standby pump will kick in and then fetch the pressure back to it required set-point

Thanks

Andrew

Sorry for some reason i can't open the file