Danfoss VLT AutomationDrive FC 302 Instruction Manual

Also see for VLT AutomationDrive FC 302: Service guide Programming guide Instruction manual Installation guide Operating guide

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Danfoss VLT AutomationDrive FC 302 Instruction Manual Manual pdf 132 page image

130BD812.10BackCancelInfoOKOnAlarmWarn.2130BB467.11Figure 9.3 Status Indicator LightsWarning LED Alarm LEDWarning On OffAlarm Off On (Flashing)Trip Lock On On (Flashing)Table 9.1 Status Indicator Lights Explanations9.4 Warnings and Alarm Definitions -Adjustable Frequency DriveThe warning/alarm information below defines eachwarning/alarm condition, provides the probable cause forthe condition, and details a remedy or troubleshootingprocedure.WARNING 1, 10 Volts lowThe control card voltage is below 10 V from terminal 50.Remove some of the load from terminal 50, as the 10 Vsupply is overloaded. Max. 15 mA or minimum 590 Ω.A short circuit in a connected potentiometer or improperwiring of the potentiometer can cause this condition.TroubleshootingRemove the wiring from terminal 50. If thewarning clears, the problem is with the wiring. Ifthe warning does not clear, replace the controlcard.WARNING/ALARM 2, Live zero errorThis warning or alarm only appears if programmed in6-01 Live Zero Timeout Function. The signal on one of theanalog inputs is less than 50% of the minimum valueprogrammed for that input. Broken wiring or faulty devicesending the signal can cause this condition.TroubleshootingCheck connections on all the analog inputterminals. Control card terminals 53 and 54 forsignals, terminal 55 common. MCB 101 terminals11 and 12 for signals, terminal 10 common. MCB109 terminals 1, 3, 5 for signals, terminals 2, 4, 6common).Check that the adjustable frequency driveprogramming and switch settings match theanalog signal type.Perform input terminal signal test.WARNING/ALARM 3, No motorNo motor has been connected to the output of thefrequency converter.WARNING/ALARM 4, Mains phase lossA phase is missing on the supply side, or the line voltageimbalance is too high. This message also appears for afault in the input rectifier on the adjustable frequencydrive. Options are programmed at 14-12 Function at MainsImbalance.TroubleshootingCheck the supply voltage and supply currents tothe adjustable frequency drive.WARNING 5, DC link voltage highThe intermediate circuit voltage (DC) is higher than thehigh-voltage warning limit. The limit is dependent on theadjustable frequency drive voltage rating. The unit is stillactive.WARNING 6, DC link voltage lowThe intermediate circuit voltage (DC) is lower than the low-voltage warning limit. The limit is dependent on thefrequency converter voltage rating. The unit is still active.WARNING/ALARM 7, DC overvoltageIf the intermediate circuit voltage exceeds the limit, theadjustable frequency drive trips after a time.TroubleshootingConnect a brake resistorExtend the ramp timeChange the ramp typeActivate the functions in 2-10 Brake FunctionIncrease 14-26 Trip Delay at Inverter FaultIf the alarm/warning occurs during a power sag,use kinetic backup (14-10 Line Failure)Warnings and Alarms Instruction Manual130 Danfoss A/S © Rev. 2014-02-07 All rights reserved. MG37A22299