We have a carbon steel constructed production line, where stainless steel bars are pushed along carbon steel plates in a drying kiln. Since installing DC servo motors for control of machine movements, the entire machine has become one big magnet, with the north pole on one end and the south pole...
The bypass line is to prevent pump cavitation in the event that the pump load were to drop off. If you eliminate this bypass, there could be progressive pump damage, particularly to the impeller, if there is a varying load on the system.
In my experience, when a vfd is operated below 20 Hz, the...
