Danfoss VLT FC 102 User Manual
Also see for VLT AQUA Drive FC 202: Service guideInstallation guideInstallation guideOperating guideInstallation guide
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Contents
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6.4 Warning and Alarm TypesWarning/alarm typeDescriptionWarning A warning indicates an abnormal operatingcondition that leads to an alarm. A warning stopswhen the abnormal condition is removed.Alarm An alarm indicates a fault that requiresimmediate attention. The fault always triggers atrip or trip lock. Reset the drive after an alarm.Reset the drive in any of 4 ways:• Press [Reset]/[Off/Reset].• Digital reset input command.• Serial communication reset input command.• Auto reset.TripWhen tripping, the drive suspends operation to preventdamage to the drive and other equipment. When a tripoccurs, the motor coasts to a stop. The drive logiccontinues to operate and monitor the drive status. Afterthe fault condition is remedied, the drive is ready for areset.Trip lockWhen trip locking, the drive suspends operation to preventdamage to the drive and other equipment. When a triplock occurs, the motor coasts to a stop. The drive logiccontinues to operate and monitor the drive status. Thedrive starts a trip lock only when serious faults occur thatcan damage the drive or other equipment. After the faultsare fixed, cycle the input power before resetting the drive.Warning and alarm displays• A warning is displayed in the LCP along with thewarning number.• An alarm flashes along with the alarm number.130BP086.12Status0.0Hz 0.000kW 0.00A0.0Hz0Earth Fault [A14]Auto Remote Trip1(1)Illustration 6.2 Alarm Display ExampleIn addition to the text and alarm code in the LCP, there are3 status indicator lights.BackCancelInfoOKOnAlarmWarn.130BB467.11System status Warning indicatorlightAlarm indicator lightWarning On OffAlarm Off On (flashing)Trip lock On On (flashing)Illustration 6.3 Status Indicator Lights6.5 List of Warnings and Alarms6.5.1 Warnings/Alarm MessagesA warning or an alarm is signalled by the relevant indicatorlight on the front of the frequency converter and indicatedby a code on the display.A warning remains active until its cause is no longerpresent. Under certain circumstances, operation of themotor may still be continued. Warning messages may becritical, but are not necessarily so.In the event of an alarm, the frequency converter trips.Reset the alarm to resume operation once the cause hasbeen rectified.3 ways to reset:• Press [Reset].• Via a digital input with the reset function.• Via serial communication/optional fieldbus.NOTICEAfter a manual reset pressing [Reset], press [Auto On] torestart the motor.If an alarm cannot be reset, the reason may be that itscause has not been rectified, or the alarm is trip locked(see also Table 6.4).Alarms that are trip locked offer extra protection, meaningthat the mains supply must be switched off before thealarm can be reset. After being switched back on, theMaintenance, Diagnostics, a... VLT® Parallel Drive Modules34 Danfoss A/S © 08/2017 All rights reserved. MG37L20266 |
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