If the fan has the function of feedback signal, fan will automatically feedback signal when the fan is in trouble. At this time, centrifugal fan needs to stop immediately when one of the following conditions occurs. Press the parking button of the main motor, and then proceed to the operation after the shutdown.

When many customers are looking for DC axial fan, they usually look at the nominal current or power of DC axial fan. They think that the same effect can be achieved only when the power is so high. Is the relationship between the power of DC axial fan and the air volume proportional?