Danfoss VT2800 Series Design Manual

Contents

VLT ® 2800 SeriesProgrammingSelect Special motor mode [8], if a special U/fsetting is needed that is to be adapted to thepresent motor. The break points are set inparameters 423-428 Voltage/frequency .NB!:Please note that if a value set in the nameplateparameters 102-106 is changed, there willbe an automatic change of parameter 108Stator resistance and 109 Stator reactance.102 Motor power P M,N(MOTOR POWER)Value:0.25 - 22 kW ✭ Depends on unitFunction:Here you must set a power value [kW] P M,N ,corresponding to the motor’s rated power. Thefactory sets a rated power value [kW] P M,N ,that depends on the type of unit.Description of choice:Set a value that matches the nameplate data on themotor. Settings between one size below and onesize over the factory setting are possible.103 Motor voltage U M,N(MOTOR VOLTAGE)Value:For 200 V units: 50 - 999 V ✭ 230 VFor 400 V units: 50 - 999 V ✭ 400 VFunction:This is where to set the rated motor voltageU M,N for either star Y or delta .Description of choice:Select a value that corresponds to the nameplatedata on the motor, regardless of the frequencyconverter’s mains voltage.104 Motor frequency f M,N(MOTOR FREQUENCY)Value:24-1000 Hz ✭ 50 HzFunction:This is where to select the rated motor frequency f M,N .Description of choice:Select a value that corresponds to the nameplatedata on the motor.105 Motor current I M,N(MOTOR CURRENT)Value:0,01 - I MAX ✭ Depends on choice of motorFunction:The nominal, rated current of the motor I M,N formspart of the frequency converter calculation of featuressuch as torque and motor thermal protection.Description of choice:Set a value that corresponds to the nameplatedata on the motor. Set the motor currentI M,N taking into account whether the motor isstar-connected Y or delta-connected .106 Rated motor speed(MOTOR NOM. SPEED)Value:100 - f M,N x 60 (max. 60000 rpm)✭ Depends on parameter 104 Motor frequency, f M,NFunction:This is where to set the value that correspondsto the rated motor speed n M,N that can beseen from the nameplate data.Description of choice:Select a value that corresponds to the nameplatedata on the motor.✭ = factory setting. () = display text [] = value for use in communication via serial communication portMG.28.E9.02 - VLT is a registered Danfoss trademark 69