Danfoss VLT AutomationDrive FC 301 Programming Manual

Also see for VLT AutomationDrive FC 301: Programming guide Installation guide Operating guide Installation guide Design guide

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Danfoss VLT AutomationDrive FC 301 Programming Manual Manual pdf 84 page image

3.6 Parameters: 4-** Limits/Warnings3.6.1 4-1* Motor LimitsDefine torque, current, and speed limits for the motor, andthe reaction of the frequency converter when the limits areexceeded.A limit may generate a message in the display. A warningalways generates a message in the display or on thefieldbus. A monitoring function may initiate a warning or atrip, after which the frequency converter stops andgenerates an alarm message.4-10 Motor Speed DirectionOption: Function:NOTICEThis parameter cannot be adjusted whilethe motor is running.Select the motor speed direction(s) required. Usethis parameter to prevent unwanted reversing.When parameter 1-00 Configuration Mode is setto [3] Process, parameter 4-10 Motor SpeedDirection is set to [0] Clockwise as default. Thesetting in parameter 4-10 Motor Speed Directiondoes not limit options for settingparameter 4-13 Motor Speed High Limit [RPM].[0] Clockwise The reference is set to CW rotation. Reversinginput (default terminal 19) must be open.[1] CounterclockwiseThe reference is set to CCW rotation. Reversinginput (default terminal 19) must be closed. Ifreversing is required with reverse input open, themotor direction can be changed byparameter 1-06 Clockwise Direction[2] BothdirectionsAllows the motor to rotate in both directions.4-11 Motor Speed Low Limit [RPM]Range: Function:Sizerelated*[ 0 - par.4-13RPM]Enter the minimum limit for motor speed.The motor speed low limit can be set tocorrespond to the manufacturer’srecommended minimum motor speed.The motor speed low limit must notexceed the setting inparameter 4-13 Motor Speed High Limit[RPM].4-12 Motor Speed Low Limit [Hz]Range: Function:Sizerelated*[ 0 -par. 4-14Hz]Enter the minimum limit for motor speed.The Motor Speed Low Limit can be set tocorrespond to the minimum outputfrequency of the motor shaft. The MotorSpeed Low Limit must not exceed the4-12 Motor Speed Low Limit [Hz]Range: Function:setting in parameter 4-14 Motor Speed HighLimit [Hz].4-13 Motor Speed High Limit [RPM]Range: Function:Sizerelated*[ par.4-11 -60000RPM]Enter the maximum limit for motorspeed. The motor speed high limit canbe set to correspond to the manufac-turer’s maximum nominal motor speed.The motor speed high limit must exceedthe setting in parameter 4-11 MotorSpeed Low Limit [RPM].4-14 Motor Speed High Limit [Hz]Range: Function:Sizerelated*[ par.4-12 -par.4-19 Hz]Enter the maximum limit for motor speed inHz. Parameter 4-14 Motor Speed High Limit[Hz] can be set to correspond to themanufacturer's recommended maximummotor speed. The motor speed high limitmust exceed the value inparameter 4-12 Motor Speed Low Limit [Hz].The output frequency must not exceed 10%of the switching frequency(parameter 14-01 Switching Frequency).4-16 Torque Limit Motor ModeRange: Function:Size related*Applicationdependent*[ 0 - 1000.0 %][Applicationdependent]This function limits thetorque on the shaft toprotect the mechanicalinstallation.NOTICEChanging parameter 4-16 Torque Limit Motor Mode whenparameter 1-00 Configuration Mode is set to [0] Speedopen loop, parameter 1-66 Min. Current at Low Speed isautomatically readjusted.NOTICEThe torque limit reacts on the actual, non-filtered torque,including torque spikes. This is not the torque that isseen from the LCP or the fieldbus as that torque isfiltered.4-17 Torque Limit Generator ModeRange: Function:100 %* [ 0 - 1000.0 %] This function limits the torque on theshaft to protect the mechanical instal-lation.Parameter Descriptions VLT® AutomationDrive FC 301/30282 Danfoss A/S © 02/2016 All rights reserved. MG33ML0233