How can frequencies be skipped in an ATV61 / ATV71 ?
Altivar ATV61 and ATV71
Motor is making a noise when running at a certain speed range.
In menu 1.3 Settings, adjust the following parameters:
Skip Freq = desired frequency ( in the middle of the skip range )
Skip Freq Hysteresis = (+) and (-) frequencies to be skipped
Skip Freq = 30Hz
Skip Freq Hysteresis = 2
The skipped range will include 2Hz below and 2Hz above the 30Hz Skip Freq.
The total skipped range is 28Hz - 32Hz.