Danfoss FC 300 Design Manual page 30

3. Introduction to FC 300
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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 P1 = (1 V, 0 RPM), for example, will result in a -1 V to +1 V 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 a reference input with limits inside Min – Max limits clamps.
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MG.33.B9.22 - VLT ® is a registered Danfoss trademark.
FC 300 Design Guide