Danfoss VLT AQUA Drive FC 202 Design Manual

Also see for VLT AQUA Drive FC 202: Service guide Installation guide Installation guide Operating guide Installation guide

Contents

WARNING 49, Speed limitWhen the speed is not within the specified range in4-11 Motor Speed Low Limit [RPM] and 4-13 Motor SpeedHigh Limit [RPM], the frequency converter shows a warning.When the speed is below the specified limit in 1-86 TripSpeed Low [RPM] (except when starting or stopping) thefrequency converter trips.ALARM 50, AMA calibration failedContact the Danfoss supplier or service department.ALARM 51, AMA check Unom and InomThe settings for motor voltage, motor current, and motorpower are wrong. Check the settings in parameters 1-20 to1-25.ALARM 52, AMA low InomThe motor current is too low. Check the settings.ALARM 53, AMA motor too bigThe motor is too big for the AMA to operate.ALARM 54, AMA motor too smallThe motor is too small for the AMA to operate.ALARM 55, AMA Parameter out of rangeThe parameter values of the motor are outside of theacceptable range. AMA will not run.ALARM 56, AMA interrupted by userThe user has interrupted the AMA.ALARM 57, AMA internal faultTry to restart AMA again. Repeated restarts may over heatthe motor.ALARM 58, AMA internal faultContact your Danfoss supplier.WARNING 59, Current limitThe current is higher than the value in 4-18 Current Limit.Ensure that motor data in parameters 1-20 through 1-25are set correctly. Increase the current limit, if necessary. Besure that the system can operate safely at a higher limit.WARNING 60, External interlockA digital input signal indicates a fault condition external tothe frequency converter. An external interlock hascommanded the frequency converter to trip. Clear theexternal fault condition. To resume normal operation,apply 24 V DC to the terminal programmed for externalinterlock. Reset the frequency converter.WARNING 62, Output frequency at maximum limitThe output frequency has reached the value set in4-19 Max Output Frequency. Check the application todetermine the cause. Possibly increase the outputfrequency limit. Be sure the system can operate safely at ahigher output frequency. The warning clears when theoutput drops below the maximum limit.WARNING/ALARM 65, Control card over temperatureThe cutout temperature of the control card is 80 °C.Troubleshooting• Check that the ambient operating temperature iswithin limits• Check for clogged filters• Check fan operation• Check the control cardWARNING 66, Heat sink temperature lowThe frequency converter is too cold to operate. Thiswarning is based on the temperature sensor in the IGBTmodule.Increase the ambient temperature of the unit. A trickleamount of current can be supplied to the frequencyconverter whenever the motor is stopped by setting2-00 DC Hold/Preheat Current at 5% and 1-80 Function atStop.ALARM 67, Option module configuration has changedOne or more options have either been added or removedsince the last power-down. Check that the configurationchange is intentional and reset the unit.ALARM 68, Safe Stop activatedLoss of the 24 V DC signal on terminal 37 has caused theunit to trip. To resume normal operation, apply 24 V DC toterminal 37 and reset the unit.ALARM 69, Power card temperatureThe temperature sensor on the power card is either toohot or too cold.Troubleshooting• Check that the ambient operating temperature iswithin limits.• Check for clogged filters.• Check fan operation.• Check the power card.ALARM 70, Illegal frequency converter configurationThe control card and power card are incompatible. Contactthe supplier with the type code of the unit from thenameplate and the part numbers of the cards to checkcompatibility.ALARM 71, PTC 1 safe torque offSafe torque off has been activated from the MCB 112 PTCthermistor card (motor too warm). Normal operation canresume when the MCB 112 applies 24 V DC to T-37 again(when the motor temperature reaches an acceptable level)and when the digital input from the MCB 112 isdeactivated. When that happens, a reset signal is sent (viaBus, Digital I/O, or by pressing [RESET]).ALARM 72, Dangerous failureSafe torque off with trip lock. The dangerous failure alarmis issued if the combination of safe torque off commandsis unexpected. This occurs if the MCB 112 VLT PTCThermistor Card enables X44/10 but safe torque off is notenabled. Furthermore, if the MCB 112 is the only deviceusing safe torque off (specified through selection [4] or [5]General Specifications and ... Design Guide200 Danfoss A/S © Rev. 06/2014 All rights reserved. MG20Z20288