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슈나이더 일렉트릭 코리아 웹사이트에 방문해 주셔서 감사합니다.

슈나이더 일렉트릭 코리아 웹사이트 방문자 분들 모두 환영합니다.
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How can running frequencies be skipped in an ATV61/ATV71 ?

Article available in these languages: 스페인어

Issue:
Skipping output frequencies in an ATV61/ATV71

Product Line:
Altivar ATV61 and ATV71

Environment:
All

Cause:
Motor is making a noise when running within a certain speed range.

Resolution:
In menu 1.3 Settings, adjust the following parameters:
Skip Freq (JPF) = midpoint of the skipped range
Skip Freq Hysteresis (JFH) = number of frequencies to be skipped above and below the midpoint

This function prevents the VFD from outputting undesirable motor speeds.  It is typically used to skip over a resonance frequency range that can result in pronounced or excessive motor noise.

The skip frequency range is (JPF – JFH) to (JPF + JFH).  The JFH hysteresis is common to all 3 skip frequency functions (JPF, JF2 and JF3).

Example :
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.

슈나이더 일렉트릭 Korea

How can running frequencies be skipped in an ATV61/ATV71 ?

Article available in these languages: 스페인어

Issue:
Skipping output frequencies in an ATV61/ATV71

Product Line:
Altivar ATV61 and ATV71

Environment:
All

Cause:
Motor is making a noise when running within a certain speed range.

Resolution:
In menu 1.3 Settings, adjust the following parameters:
Skip Freq (JPF) = midpoint of the skipped range
Skip Freq Hysteresis (JFH) = number of frequencies to be skipped above and below the midpoint

This function prevents the VFD from outputting undesirable motor speeds.  It is typically used to skip over a resonance frequency range that can result in pronounced or excessive motor noise.

The skip frequency range is (JPF – JFH) to (JPF + JFH).  The JFH hysteresis is common to all 3 skip frequency functions (JPF, JF2 and JF3). 
 
Example :
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.

슈나이더 일렉트릭 Korea

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