Danfoss VLT AQUA Instruction

Also see for vlt aqua: Instructions Design guide Instruction manual Operating instructions Design guide

Contents

3-88 Final Ramp TimeRange: Function:0 [s]* [0 – 60 [s]] Enter the Final Ramp Time to be used when ramping down from Motor Speed Low Limit, par. 4-11or 4-12, to zero speed.Submersible deep well pumps can be damaged by running below minimum speed. A fast ramp timebelow minimum pump speed is recommended. This parameter may be applied as a fast ramp ratefrom Motor Speed Low Limit to zero speed.6.3.5 4-** Limits and WarningsParameter group for configuring limits and warnings.4-11 Motor Speed Low Limit [RPM]Range: Function:Applicationdependent*[Application dependant] Enter the minimum limit for motor speed. The Motor Speed Low Limit can be set to correspond tothe manufacturer’s recommended minimum motor speed. The Motor Speed Low Limit must notexceed the setting in par. 4-13Motor Speed High Limit [RPM].4-13 Motor Speed High Limit [RPM]Range: Function:Applicationdependent*[Application dependant] Enter the maximum limit for motor speed. The Motor Speed High Limit can be set to correspond tothe manufacturer’s maximum rated motor. The Motor Speed High Limit must exceed the setting inpar. 4-11Motor Speed Low Limit [RPM]. Only par. 4-11Motor Speed Low Limit [RPM] orpar. 4-12Motor Speed Low Limit [Hz] will be displayed, depending on other parameters in the mainmenu, and depending on default settings dependant on global location.NOTE!Max. output frequency cannot exceed 10% of the inverter switching frequency (par. 14-01Switching Frequency).NOTE!Any changes in par. 4-13Motor Speed High Limit [RPM] will reset the value in par. 4-53Warning Speed High to the same value as setin par. 4-13Motor Speed High Limit [RPM].6 How to Program the Low Harmonic DriveVLT AQUA Low Harmonic Drive InstructionManual6-20 MG.20.T1.22 - VLT® is a registered Danfoss trademark6