Issue:
Drive not responding to speed reference signal.
Product Line:
ATV61/ATV71
Environment:
All models, All serial numbers
Cause:
Drive does not follow the given frequency reference but runs at a fixed offset speed above or below the given reference.
Resolution:
Under menu 1.7, Application Function, sub menu Reference Operations, Check to see that reference summing, subtraction, and/or multiplication is not activated. If any of these functions are activated then a mathematical function is being performed between two or more speed reference channels to arrive at the final frequency reference applied to the drive. In this case, Input summing between the HMI and AI1 was enabled. Since the Low Speed setting was set to 20.0Hz, the input of 20.0Hz. was being added to the frequency reference set by the HMI. Deactivating input summing corrected the issue and the drive then operated as expected.
Drive not responding to speed reference signal.
Product Line:
ATV61/ATV71
Environment:
All models, All serial numbers
Cause:
Drive does not follow the given frequency reference but runs at a fixed offset speed above or below the given reference.
Resolution:
Under menu 1.7, Application Function, sub menu Reference Operations, Check to see that reference summing, subtraction, and/or multiplication is not activated. If any of these functions are activated then a mathematical function is being performed between two or more speed reference channels to arrive at the final frequency reference applied to the drive. In this case, Input summing between the HMI and AI1 was enabled. Since the Low Speed setting was set to 20.0Hz, the input of 20.0Hz. was being added to the frequency reference set by the HMI. Deactivating input summing corrected the issue and the drive then operated as expected.
Publikováno pro: Schneider Electric Česká republika
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