Vacon NXL series User Manual

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Vacon NXL series User Manual Manual pdf 62 page image

62 • vacon Control keypadTelephone: +358-201-2121 • Fax: +358-201-212 20577.4.4 Active faults menu (F4)TheActive faults menu can be entered from theMain menu by pushing theMenu button right whenthe location indication F4 is visible on the keypad display.The memory of active faults can store the maximum of 5 faults in the order of appearance. Thedisplay can be cleared with theReset button and the read-out will return to the same state it wasbefore the fault trip. The fault remains active until it is cleared with theReset button or with a resetsignal from the I/O terminal.Note! Remove external Start signal before resetting the fault to prevent unintentional restart of thedrive.Normal state,no faults:7.4.4.1 Fault typesIn the NXL frequency converter, there are two different types of faults. These types differ from eachother on the basis of the subsequent behaviour of the drive. See Table 7-3. Fault types.Figure 7-8. Fault displayFault type symbol MeaningA(Alarm)This type of fault is a sign of an unusual operatingcondition. It does not cause the drive to stop, nor does itrequire any special actions. The 'A fault' remains in thedisplay for about 30 seconds.F(Fault)An 'F fault' is a kind of fault that makes the drive stop.Actions need to be taken in order to restart the drive.Table 7-3. Fault typesSTOP I/O termREADYSTOP I/O termREADYSTOP I/O termREADYnxlk19. fh8