circuit protection

− NEMA 12 enclosure does not require derating

− Smaller physical size of internal option slots

− FlashDrop programming (unpowered drive)

− Reduced energy costs without power factor penalties and

correction capacitors

− Patented swinging choke provides substantially

reduced harmonics, more inductance to the correct

load and higher power factor

− Up to 25% less THD v. traditional DC choke

− Daily timer controls for time-of-day backoff e.g. start/

stop process changes

− Reduced Drive-Motor system failures and costs

− Preventative “Maintenance Assistant” annunciation

feature schedules Drive-Motor system maintenance

The ABB ACS550 AC drive combines a sophisticated microprocessor with an advanced IGBT power switching technology to deliver V/Hz, Closed Loop Flux Vector and Sensorless

Vector control of AC motors. Its intuitive control panel offers

numerous benefits making it the most user-friendly panel in

the drives industry. The extensive library of pre-programmed

application macros maximizes convenience and minimizes

start-up time. This drive can handle the most demanding industrial applications in an efficient, dependable and economic manner.