Danfoss VLT AutomationDrive FC 300 Design Manual page 27

FC 300 Design Guide 3. Introduction to FC 300
The size of the Dead Band is defined by either P1 or P2 as shown in the graph below.
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Thus a reference endpoint of P1 = (0 V, 0 RPM) will not result in any dead band, but a reference endpoint of e.g. P1 = (1V, 0 RPM) will result in a -1V
to +1V dead band in this case provided that the end point P2 is placed in either Quadrant 1 or Quadrant 4.
Case 1: Positive Reference with Dead band, Digital input to trigger reverse
This Case shows how Reference input with limits inside Min – Max limits clamps.
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