Operating Instruction - Frequency Inverter 230V / 400V ... - opis.cz

Multiple motor operationParameter Operation Mode 571 = 1 or 11In multiple motor operation, it is assumed that for each data set a corresponding motoris used. For this, one motor and one motor protection switch are assigned to eachdata set. In this operation mode, the rated values of the active data set are monitored.The current output current of the frequency inverter is only taken into accountif the motor protection switch is activated by the data set. In the motor protectionswitch of the other data sets, zero current is expected, with the result that the thermaldecay functions are taken into account. In combination with the data set changeover,the function of the motor protection switches is similar to that of motors connectedalternately to the mains with their own protection switches.Single motor operationParameter Operation Mode 571 = 2 or 22In single motor operation, only one motor protection witch, which monitors the outputcurrent of the frequency inverter, is active. In the case of a data set change-over,only the switch-off limits derived from the rated machine parameters are changedover. Accumulated thermal values are used after the change-over as well. In the caseof the data set change-over, please ensure that the machine data are stated identicallyfor all data sets. In combination with the data set change-over, the function ofthe motor protection switch is similar to that of motors connected alternately to themains with one common protection switch.Motor protection, in particular self-ventilation motors, is improved via the FrequencyLimit 572 which can be set as a percentage of the rated frequency. The measuredoutput current in operating points below the frequency limit is assessed by a factor of2 higher in the calculation of the trigger characteristic.ParameterSettingsNo. Description Min. Max. Fact. sett.572 Frequency Limit 0 % 300 % 0 %17.6 V-belt MonitoringContinuous monitoring of the load behavior and thus of the connection between the3-phase machine and the load is the task of the V-belt monitoring system. The parameterOperation Mode 581 defines the function behavior if the Active Current 214(sensor-less control) or the torque-forming current component Isq 216 (field-orientedcontrol method) is below the set Trigger Limit Iactive 582 for longer than the parameterizedDelay Time 583.Operation modeFunction0 - Off The function is deactivated1 - WarningIf the active current drops below the threshold value,the warning "A8000" is displayed.2 - ErrorThe unloaded drive is switched off and fault message"F0402" is displayed02/06 167