Danfoss VLT AutomationDrive FC 300 Programming Manual page 233

3 Parameter descriptions
35-45 Term. X48/2 High Ref./Feedb. Value
Range:
100.000* [-999999.999 - 999999.999 ]
35-46 Term. X48/2 Filter Time Constant
Range:
3
0.001 s* [0.001 - 10.000 s]
232
Function:
Enter the reference or feedback value (in RPM, Hz, bar, etc.) that corresponds to the voltage or
current set in par. 35-43.
Function:
Enter the filter time constant. This is a first-order digital low pass filter time constant for suppressing
electrical noise in terminal X48/2. A high time constant value improves dampening but also increases
the time delay through the filter.
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FC 300 Programming Guide