3-16 Reference 2 SourceOption: Function:[7] Frequency input29[8] Frequency input33[11] Local busreference[20] Digital pot.meter[32] Bus PCD3-17 Reference 3 SourceOption: Function:Select the reference input to be usedfor the first reference signal.Parameter 3-15 Reference 1 Source,parameter 3-16 Reference 2 Source andparameter 3-17 Reference 3 Sourcedefine up to 3 different referencesignals. The sum of these referencesignals defines the actual reference.[0] No function[1] Analog Input 53[2] Analog Input 54[7] Frequency input29[8] Frequency input33[11] * Local busreference[20] Digital pot.meter[32] Bus PCD3-18 Relative Scaling Reference ResourceOption: Function:NOTICEThis parameter cannot be adjustedwhile the motor is running.Select a variable value to be added to thefixed value (defined inparameter 3-14 Preset Relative Reference).The sum of the fixed and variable values(labelled Y in Illustration 4.6) is multipliedwith the actual reference (labelled X inIllustration 4.6). This product is thenadded to the actual reference (X+X*Y/100) to give the resulting actualreference.3-18 Relative Scaling Reference ResourceOption: Function:RelativeZ=X+X*Y/100ResultingactualreferenceYX130BA059.12ZIllustration 4.6 Resulting ActualReference[0] * No function[1] Analog Input 53[2] Analog Input 54[7] Frequency input29[8] Frequency input33[11] Local busreference4.4.3 3-4* Ramp 1Configure the ramp parameter, ramping times, for each ofthe 2 ramps (parameter group 3-4* Ramp 1 and parametergroup 3-5* Ramp 2).tacc t dec130BD379.10P 3-*2Ramp (X)DownTime (Dec)P 4-14High-limitHzReferenceP 1-23MotorfrequencyP 4-12Low limitTimeP 3-*1Ramp (X)UpTime (Acc)Illustration 4.7 Example of Ramp 13-40 Ramp 1 TypeOption: Function:Select the ramp type, depending onrequirements for acceleration/deceleration. Alinear ramp gives constant acceleration duringramping. An S-ramp gives non-linearacceleration.[0] * Linear[2] S-rampConstTimeS-ramp based on the values set inparameter 3-41 Ramp 1 Ramp Up Time andparameter 3-42 Ramp 1 Ramp Down Time.Parameter Descriptions Programming Guide42 Danfoss A/S © Rev. 2014-03-31 All rights reserved. MG06C40244