Marvo you are exactly correct. This is a dewatering application where the level must never rise above a preset depth. In this case the contractor poorly constructed the elevator pit in a commercial building so when a rain event happens it floods. By keeping the water below the elevator pit the problem goes away! We have done many of these but in most case the water production rates remain constant. In this case the volume of production at the soil bedrock interface varies from 10 - 70gpm depending on weather and time of year. To all reading this it is not a sump pump but a high volume submersible turbine. Very similar to you typical water well except larger diameter and greater volume. The idea is to create a cone of depression and essentially dewater the zone so the rain events have as little impact as possible.
Now for the solution. It appears that the folks at ABB called out some settings that were not so compatible with the type of motors used in submersible pumps. After a call to the motor and pump manufacturers we were able to set the gain, integral, ramp up, and carrier frequency to make the pump and motor happy. The current draw is now under service factor and the unit is operating as designed. It appears you were correct (Marvo) that the readings shown by the drive were in fact correct and once the parameters we correctly set we're off and running.
Again I appreciate the help!
