Atv320U30N4B Inverter

[Eng-Zeru]

Frequency fluctuation of @ATV3tb20U3tb0N4B – If I set above 10Hz set point – output frequeny is okay from drive and if I set 3-10Hz, it give fluctuation in drive output frequency and it varies from setpoint value to maximum set frequency. I has also been noted that high sound at the motor. The drive application marble block cutter machine. Please advise Solution

[PCDTC · Accepted solution]

The load is high on the motor so at low speed you cannot get same torque, either keep higher speed or try to boost torque in the vfd .