When that variable frequency drive (VFD) goes down, you're under pressure to get it ... That can give you the time you need for a permanent fix. In new installations, apparent problems with drive ...

Fig. 1. An ideal sinuosoid and PWM waveform figure. By the 1980s, AC motor drive technology became reliable and inexpensive enough to compete with traditional DC motor control. These ...

Hansen sees predictive maintenance as a big area where recent improvements can make a difference — how it’s running, types of stresses it’s seeing, and whether to repair or replace. Seth O’Brien, ...

The Allen-Bradley PowerFlex 6000T medium voltage variable frequency drive (VFD) from Rockwell Automation ... mode reduction in downtime and repair costs with predictive maintenance alerts easy ...