Panasonic VF0 Series 400V class Instruction Manual

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55RIDE-THROUGH RESTART (Parameter P49)CAUTION:Depending on the ride-through restart function settings, the motor may restart suddenlyafter the power is restored.(Ensure personal safety before restarting.)Failure to do so could lead to injury.Used to select the restart mode after an instantaneous power failure occurs, according to theload conditions and system. A wait timer function is built-in.Inverter operation in regard to instantaneous power failure timeDatasettingvalueMin. 15ms orless (Note 1)Exceeding min. 15ms(Note 1)Min. 100ms or less(Note 2)Exceeding min. 100ms(Note 2)0 • The LU trips, and the inverter operates according to the start mode settings.• "LU" will be displayed, and a fault warning signal will be output.1• Restarts from 0Hz after the wait time has elapsed.• "LU" will be displayed, but a fault warning signalwill not be output.2Operationcontinues • After the wait time has elapsed, the inverterrestarts at the frequency applied before theride-through restart occurred.• "LU" will be displayed, but a fault warning signalwill not be output.Operation takes placeaccording to the detailsset in the start mode.Note 1) This is the min. time for operation at the rated output current.(This time may be longer depending on the model.)Note 2) This is the min. time. (This time may be longer if the rated capacity is larger.)Even if the power failure time is relatively long (approx. 1 min.), the inverter mayrestart after the power is restored. Wait at least four min. (wait time + 2 min.) afterthe power is restored before handling the inverter, motor or load facility.Note 3) The wait time can be set between 0.1 to 100 sec. with parameter P50.[When voltage drop time is more than 15ms but less than 100ms.]Voltage drop timeLU tripPowersupplyOutputfrequencyOutputfrequencyOutputfrequencyLU tripLU tripLU levelWait time(Parameter P50)Current limit functionOperates according to thestart mode setting details0000• Data setting value "0"(No restart)• Data setting value "1"(0Hz restart)• Data setting value "2"(Pickup restart)