Danfoss VLT AQUA Programming Manual

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

Contents

imum rated motor speed. The Motor Speed High Limit mustexceed the setting in par. 4-11Motor Speed Low Limit [RPM].Only par. 4-11 or 4-12 will be displayed depending on other pa-rameters set in the Main Menu and depending on default set-tings dependant on global geographical location.NB!The output frequency value of the frequency converter must not exceed a valuehigher than 1/10 of the switching frequency.4-14 Motor Speed High Limit [Hz]Range: Function:Size re-lated*[0 - 1000 Hz] Enter the maximum limit for motor speed. The Motor SpeedHigh Limit can be set to correspond to the manufacturer’s rec-ommended maximum frequency of the motor shaft. The MotorSpeed High Limit must exceed the setting in par. 4-12MotorSpeed Low Limit [Hz]. Only par. 4-11 or 4-12 will be displayeddepending on other parameters set in the Main Menu and de-pending on default settings dependant on global geographicallocation.NB!Max. output frequency cannot exceed 10% of the inverter switching frequency (par.14-01).4-16 Torque Limit Motor ModeRange: Function:110.0 %*[0.0 - Variable Limit%]Enter the maximum torque limit for motor operation. The torquelimit is active in the speed range up to and including the ratedmotor speed set in par. 1-25Motor Nominal Speed. To protectthe motor from reaching the stalling torque, the default settingis 1.1 x the rated motor torque (calculated value). See also par.14-25Trip Delay at Torque Limit for further details.If a setting in par. 1-00 to par. 1-26 is changed, par. 4-16 is notautomatically reset to the default setting.4-17 Torque Limit Generator ModeRange: Function:100 %* [0 - 1000 %] Enter the maximum torque limit for generator mode operation.The torque limit is active in the speed range up to and includingthe rated motor speed (par. 1-25). Refer to par. 14-25Trip De-lay at Torque Limit for further details.If a setting in par. 1-00 to par. 1-26 is changed, par. 4-17 is notautomatically reset to the default settings.VLT ® AQUA Drive Programming Guide 2. Parameter DescriptionMG.20.O2.02 - VLT ® is a registered Danfoss trademark 712