Successful installation of 3 x ABB ACQ580 inverters completed for a customer looking for a economical solution to replace failed application. The original inverters failed due to a power surge. The ACQ580's intelligent pump control (IPC) eliminates any complexities and work in correspondence with each other, shifting master and follower settings amongst themselves via a simple serial bus setup. No need for plcs etc with this drive, the ACH580 range also have the IPC function for HVAC. One very happy customer!