Title: Operating instructions - K3G500PB3301.pdf
Safety feature description/ function An automatic restart follows. ; After the blockage is removed, the motor restarts automatically. ; If the line voltage returns to permitted values, the motor restarts automatically. A phase of the supply voltage fails for at least 5 s. ; When all phases are correctly supplied again, the motor automatically restarts after 10-40 s.NOTE Damage to the device from vibration Bearing damage, shorter service life→ Low-vibration operation of the fan must be ensured over theentire speed control range.→ Severe vibration can arise for instance from inexperthandling, transportation damage and resultant imbalance or be caused by component or structural resonance.→ Speed ranges with excessively high vibration levels and possibly resonant frequencies must be determined in the course of fan commissioning.→ Either run through the resonant range as quickly as possible with speed control or find another remedy.→ Operation with excessively high vibration levels can