FC 300 Design GuideHow to Program" Parameters: Refer-ence/Ramps" 3-** Reference LimitsParameters for reference handling, defininglimitations, and configuring the reaction of theadjustable frequency drive to changes." 3-0* Reference LimitsParameters for setting the reference unit,limits and ranges.3-00 Reference RangeOption:Min. - Max [0]*-Max - +Max [1]Function:Select the range of the reference signal and thefeedback signal. Signal values can be positive only,or positive and negative. The minimum limit mayhave a negative value, unless Speed closed loop [1]control is selected in par. 1-00 Configuration Mode.Select Min. - Max [0] for positive values only.Select-Max - +Max [1] for both positiveand negative values.3-01 Reference/Feedback UnitOption:None [0]*% [1]RPM [2]Nm [4]bar [5]Pa [6]PPM [7]CYCLE/min [8]PULSE/s [9]UNITS/s [10]UNITS/min [11]UNITS/h [12]∞C [13]F [14]m 3 /s [15]m 3 /min [16]m 3 /h [17]t/min [23]t/h [24]m [25]m/s [26]m/min [27]in wg [29]gal/s [30]gal/min [31]gal/h [32]lb/s [36]lb/min [37]lb/h [38]lb ft [39]ft/s [40]ft/min [41]l/s [45]l/min [46]l/h [47]kg/s [50]kg/min [51]kg/h [52]ft 3/s [55]ft 3/min [56]ft 3/h [57]Function:Select the unit to be used in process PIDcontrol references and feedback.3-02 Minimum ReferenceRange:-100000.000 - par. 3-03 *0.000 UnitFunction:Enter the Minimum Reference. The MinimumReference is the lowest value obtainable bysumming all references.Minimum Reference is active only when par. 3-00Reference Range is set to Min.- Max. [0].The Minimum Reference unit matches- the choice of configuration in par 1-00Configuration Mode: for Speed closed loop[1], RPM; for Torque [2], Nm.- the unit selected in par. 3-01 Refer-ence/Feedback Unit.3-03 Maximum ReferenceRange:Par. 3-02 - 100000.000 *1500.000 UnitFunction:Enter the maximum reference. The maximumreference is the highest value obtainable by summingall references. The maximum reference unit matches* default setting ( ) display text [ ] value for use in communication via serial communication port177MG.33.B6.22 - VLT is a registered Danfoss trademark