Vacon NX Active Front End User Manual

Contents

Control Keypad vacon • 8124-hour support +358 (0)201 212 575 • Email: vacon@vacon.com66.3.6 Fault codesThe fault codes, their causes and correcting actions are presented in the Table 27. The shadowedfaults are A faults only. The items in white on black background are faults for which you canprogram different responses in the application. See parameter group Protections.NOTE! When contacting the distributor or factory because of a fault condition, always write down alltexts and codes visible on the keypad display.Table 27. Fault codesFaultcode Fault Possible cause Correcting measures1 Overcurrent AFE has detected too high current(>4*IH) in the resistor cables:- Check cables.- Check resistors.2 OvervoltageThe DC-link voltage has exceeded thelimit:911 V for 500 V AFE1200 V for 690 V AFE7 Saturation tripVarious causes:- Defective component.- Brake resistor short-circuitoroverload.- Cannot be reset from the keypad.- Switch off power.- DO NOT RE-CONNECT POWER!- Contact your local distributor.8 System fault- Component failure- Faulty operationNote exceptional fault data recordSubcode in T.14:S1 = ReservedS2 = ReservedS3 = ReservedS4 = ReservedS5 = ReservedS6 = ReservedS7 = Charging switchS8 = No power to driver cardS9 = Power unit communication (TX)S10 = Power unit communication(Trip)S11 = Power unit communication(Measurement)Reset the fault and restart.Should the fault re-occur, contact yourlocal distributor.9 UndervoltageDC-link voltage is under the AFE faultvoltage limit:333 VDC for 500 V AFE460 VDC for 690 V AFE- Most probable cause: too lowsupply voltage in the system.- AFE internal fault.- In case of temporary supply voltagebreak, reset the fault and restart thefrequency converter.- Check the supply voltage.- If it is adequate, an internal failurehas occurred.- Contact your local distributor.13 AFEundertemperature Heatsink temperature is under –10 °C14 AFEovertemperatureHeatsink temperature is over 90 °C.Overtemperature warning is issuedwhen the heatsink temperatureexceeds 85 °C.- Check the correct amount and flowof cooling air.- Check the heatsink for dust.- Check the ambient temperature.