rta53
Lifetime Supporting Member
We use VFDs, mainly AB Powerflex, to control pumps in our water purification systems. We try to maintain a certain pressure using a pressure transmitter as our reference. If I want the pump to have a minimum speed then I set the minimum hertz. If I want to limit the maximum speed of the pump I set a maximum hertz. We have an engineer who keeps asking me if there is a way to limit the amps that the VFD outputs. He says he is concerned about overloading the motor. I think he worries too much but he keeps bugging me about this. Can this be done?