Frequency Inverter DF51... - Moeller.com.tr

04/07 AWB8230-1541GB Fault signal (AL)Fault signal (AL)A digital output configured as AL activates when a fault hasoccurred.By default, function AL is assigned to signalling relay K1(terminals K11, K12, K14) (PNU C036 = 00).Resetting fault signals (RST)By default, RST is assigned to digital input 5.A fault message can be acknowledged by activating andsubsequently deactivating (i.e. resetting) the digital inputconfigured as RST.Default setting of the signalling relayFault or DF51 switched offRun signalRST5P24K11 K14K12K11 K14K12VoltageOperatingstateK11-K12K11-K14Figure 164:Digital input 5 configured as RST (reset)On Normal Open ClosedOn Fault Closed OpenOff – Closed OpenWhen the supply voltage is applied, the internal monitoringfunctions are scanned. If no fault message is present, K1 isenergized (contact K11-K14 closed). When a fault message ispresent (E…), K1 drops out (K11-K12 closed).RSTK14f 12 ms~ 30 msLP24 CM2 11+24 VF 50 mAALFigure 165: Function chart for RST (reset)K14: Signalling relay contact K14X Configure one of the digital inputs 1 to 5 as RST by entering thevalue 18 under the corresponding PNU (C001 to C005).Figure 163:Digital output 11 configured as AL (fault occurrence)X Configure one of the digital outputs 11 or 12 as an AL by settingPNU C021 or PNU C022 to 05.When the AL output is configured as a break contact, rememberthat there is a delay from the time the supply voltage is switchedon until the AL output is closed, and a fault message relating tothe AL output therefore appears for a short time after the supply isswitched on.After the frequency inverter supply voltage has been switched off,the AL output remains active until the DC bus voltage has droppedbelow a certain level. This time depends, among other factors, onthe load applied to the inverter.The delay from the time a fault occurs until the AL output isactivated is about 300 ms.j Warning!If a reset is carried out after a fault, the motor will startagain at once if a start signal is applied simultaneously. Toavoid the risk of serious or fatal injury to personnel, youmust ensure that the start signal is not present beforeacknowledging an error message with a reset. Thisprevents the risk of damage and injury.hhhWhen a fault has occurred, the Stop key on the keypadacts as a RESET key and can be used instead of the RSTinput to reset the fault.If the RST input is active for more than four seconds, it cancause a false trip.The RST input is always a make (NO) contact and cannotbe programmed as a break (NC) contact.hhAlternatively, you can acknowledge a fault message bybriefly switching the supply voltage off and on again.If a reset is initiated during operation, the motor coasts toa stop.183