i am facing problem in supply fan,motor side vibration found high&we change vibro pad as well as we corrected allignment but still vibration found high.we are using normal vibration meter wich contains velocity,acceleration,displacement read out.I given detail below kindly give suggetion& i am want to know due to variable frequency drive there any chance of vibration increase & if any further details about fan vibration please provide.
vibration before motor NDE(vertical-10mm/sec,axial 40mm/sec,horizontal-409mm/sec).
motor DE(vertical-29.4mm/sec,axial 31.5mm/sec,horizontal-4.2mm/sec),Fan DE(vertical-2.4mm/sec,axial 5.7mm/sec,horizontal-6.2mm/sec)
after action taken motor NDE(vertical-7.1mm/sec,axial 17.8mm/sec,horizontal-3.3mm/sec).
motor DE(vertical-14.9mm/sec,axial 17.5mm/sec,horizontal-4.9mm/sec),Fan DE(vertical-5.2mm/sec,axial 5.7mm/sec,horizontal-8.2mm/sec)