A variable frequency drive (VFD) fails to vary the discharge-air fan speed. A motor overheats and fails prematurely. Programmable controls that generally operate without issue suddenly experience ...

What if a variable-frequency drive (VFD) on a critical system has a fault indication, the “error” LED on a DC power supply has turned on, or a conveyor belt has started behaving erratically — most ...

You work for a technical services firm. A client company’s plant engineer needs a chronic motor failure solved but has a sticky situation. The plant is privately owned. Ted, who is officially the ...