ACS550 standard drives are simple to buy, install, configure and use, saving considerable time. They are widely available through ABB Drives Alliance, hence the use of the term standard. The ABB variable speed drives have common user and process interfaces with fieldbuses, common software tools for sizing, commissioning, maintenance and common spare parts.”ABB standard AC inverter drives can be used in a wide range of industries.Typical applications include pump, fan and constant torque use, such as conveyors. ABB frequency inverters are ideal in those situations where there is a need for simplicity to install, commission and use and where customizing or special product engineering is not required.”