ABB's new PST soft starter range, covering motor currents from 30 to
1,050A (in line), are claimed to be as easy to set up and operate as a
mobile 'phone. Each unit has a liquid crystal display providing
information in plain text, and a four-button keypad for programming.
Standard settings are available for many common applications such as
pumps, conveyors, mixers and crusher drives, and users can tailor their
own settings with start/stop profiles, sequence starting (up to three
motors), advanced warning profiles and other specific functions.
PST soft starters can be connected either in line with the motor or
inside the motor's delta circuit. Inside delta connection exposes the
starter to just 58% of the in-line current, so a smaller starter can be
selected for the application, saving money and cabinet space. The unit
automatically detects the connection mode, which avoids the need for
special settings.
These new starters are 'Industrial IT' enabled, which is ABB's own
special branding for products that can be integrated seamlessly into
larger industrial or process control schemes. Bus connection is via the
company's FieldBusPlug technology; the starter itself has a
fieldbus-'neutral, fieldbus-independent interface that allows connection
to any existing protocol within the FieldBusPlu range.
Back to January 2004 Menu