ACH550 products from 0.75 to 355 kW / 1 to 483 hp The ABB standard drive is simple to buy, install,configure and use, saving considerable time. The drive has common user and process interfacewith fieldbus, common software tools for sizing, commissioning, maintenance and common spare parts.

The Solution to both mechanical and electrical problems AC motors, “the workhorse of the industry”, that are used to drive fans, crushers, agitators, pumps, conveyors etc., are unnecessarily causing unwanted load peaks day in and day out in production plants all over the world. These violent starts cause damage in several ways.

Among them are:

• Electrical problems due to voltage and current transients arising from Direct-on-Line or Star-Delta starts. Such transients may overload the local supply network and cause unacceptable voltage variations that interfere with other electrical equipment connected to the network.
• Mechanical problems that address the entire drive chain, from motor to driven equipment, to severe stress.
• Operational problems, such as pressure surge in pipelines, damage to products on conveyor belts and uncomfortable escalator rides.

The financial consequences are considerable: every technical problem and every breakdown costs money-in terms of repairs as well as lost production.

The easy solution to all of these problems is to install an ABB Softstarter type PSS or PST. With ABB Softstarters, it is possible to start and stop smoothly while keeping mechanical and electrical stresses to a minimum.