Danfoss FC 102 Operating Instructions Manual

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

Contents

WARNING 62, Output frequency at maximum limitThe output frequency is higher than the value set in4-19 Max Output Frequency.ALARM 64, Voltage LimitThe load and speed combination demands a motorvoltage higher than the actual DC-link voltage.WARNING/ALARM 65, Control card over temperatureThe control card has reached its trip temperature of 75 °C.WARNING 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. Also, atrickle amount 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.Troubleshooting• Check the temperature sensor.• Check the sensor wire between the IGBT and thegate drive card.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 activatedSafe Torque Off has been activated.Troubleshooting• To resume normal operation, apply 24 V DC toterminal 37, then send a reset signal (via bus,digital I/O, or by pressing [Reset]).ALARM 69, Power card temperatureThe temperature sensor on the power card is either toohot or too cold.Troubleshooting• Check the operation of the door fans.• Check that the filters for the door fans are notblocked.• Check that the gland plate is properly installedon IP21/IP54 (NEMA 1/12) frequency converters.ALARM 70, Illegal FC configurationThe control card and power card are incompatible.Troubleshooting• Contact the supplier with the type code of theunit from the nameplate and the part numbers ofthe cards to check compatibility.ALARM 71, PTC 1 safe stopSafe Stop has been activated from the MCB 112 PTCThermistor Card (motor too warm). Normal operation canbe resumed when the MCB 112 applies 24 V DC to T37again (when the motor temperature reaches an acceptablelevel) and when the Digital Input from the MCB 112 isdeactivated. When that happens, a reset signal must be isbe sent (via Bus, Digital I/O, or by pressing [Reset]).NOTICEIf automatic restart is enabled, the motor may startwhen the fault is cleared.ALARM 72, Dangerous failureSafe stop with trip lock. Unexpected signal levels on safestop and digital input from the MCB 112 PTC thermistorcard.WARNING 73, Safe Stop auto restartSafe stopped. With automatic restart enabled, the motormay start when the fault is cleared.WARNING 76, Power unit setupThe required number of power units does not match thedetected number of active power units. When replacing anF-frame module, this occurs if the power specific data inthe module power card does not match the rest of thefrequency converter.Troubleshooting• Confirm the spare part and its power card are thecorrect part number.WARNING 77, Reduced power modeThis warning indicates that the frequency converter isoperating in reduced power mode (i.e. less than theallowed number of inverter sections). This warning isgenerated on power cycle when the frequency converter isset to run with fewer inverters and remains on.ALARM 79, Illegal power section configurationThe scaling card is the incorrect part number or notinstalled. Also, the MK102 connector on the power cardcould not be installed.ALARM 80, Drive initialised to default valueParameter settings are initialised to default settings after amanual reset.Troubleshooting• Reset the unit to clear the alarm.ALARM 81, CSIV corruptCSIV (Customer Specific Initialisation Values) file has syntaxerrors.ALARM 82, CSIV parameter errorCSIV (Customer Specific Initialisation Values) failed toinitialise a parameter.ALARM 85, Dang fail PBPROFIBUS/PROFIsafe error.WARNING/ALARM 104, Mixing fan faultThe fan monitor checks that the fan is spinning atfrequency converter power-up or whenever the mixing fanis turned on. If the fan is not operating, the fault is issued.The mixing-fan fault can be configured as a warning or analarm trip by 14-53 Fan Monitor.Warnings and Alarms Operating InstructionsMG16D302 Danfoss A/S © Rev. 06/2014 All rights reserved. 719 9