Alarm Word and Extended Status WordBit Hex Dec Alarm Word Warning Word Extended Status Word0 00000001 1 Brake Check Brake Check Ramping1 00000002 2 Pwr. Card Temp Pwr. Card Temp AMA Running2 00000004 4 Earth Fault Earth Fault Start CW/CCW3 00000008 8 Ctrl.Card Temp Ctrl.Card Temp Slow Down4 00000010 16 Ctrl. Word TO Ctrl. Word TO Catch Up5 00000020 32 Over Current Over Current Feedback High6 00000040 64 Torque Limit Torque Limit Feedback Low7 00000080 128 Motor Th Over Motor Th Over Output Current High8 00000100 256 Motor ETR Over Motor ETR Over Output Current Low9 00000200 512 Inverter Overld. Inverter Overld. Output Freq High10 00000400 1024 DC under Volt DC under Volt Output Freq Low11 00000800 2048 DC over Volt DC over Volt Brake Check OK12 00001000 4096 Short Circuit DC Voltage Low Braking Max13 00002000 8192 Inrush Fault DC Voltage High Braking14 00004000 16384 Mains ph. Loss Mains ph. Loss Out of Speed Range15 00008000 32768 AMA Not OK No Motor OVC Active16 00010000 65536 Live Zero Error Live Zero Error17 00020000 131072 Internal Fault 10V Low18 00040000 262144 Brake Overload Brake Overload19 00080000 524288 U phase Loss Brake Resistor20 00100000 1048576 V phase Loss Brake IGBT21 00200000 2097152 W phase Loss Speed Limit22 00400000 4194304 Fieldbus Fault Fieldbus Fault23 00800000 8388608 24 V Supply Low 24V Supply Low24 01000000 16777216 Mains Failure Mains Failure25 02000000 33554432 1.8V Supply Low Current Limit26 04000000 67108864 Brake Resistor Low Temp27 08000000 134217728 Brake IGBT Voltage Limit28 10000000 268435456 Option Change Unused29 20000000 536870912 Drive Initialised Unused30 40000000 1073741824 Safe Stop UnusedTable 9.2: Description of Alarm Word, Warning Word and Extended Status WordThe alarm words, warning words and extended status words can be read out via serial bus or optional fieldbus for diagnosis. See also par. 16-90, 16-92and 16-94.9.1.1. Fault messagesWARNING 1, 10 Volts low:The 10 V voltage from terminal 50 on the control card is below 10 V.Remove some of the load from terminal 50, as the 10 V supply is over-loaded. Max. 15 mA or minimum 590 Ω.WARNING/ALARM 2, Live zero error:The signal on terminal 53 or 54 is less than 50% of the value set in par.6-10Terminal 53 Low Voltage, par. 6-12 Terminal53 Low Current, par.6-20Terminal 54 Low Voltage, or par. 6-22 Terminal54 Low Currentrespectively.WARNING/ALARM 3, No motor:No motor has been connected to the output of the frequency converter.WARNING/ALARM 4, Mains phase loss:A phase is missing on the supply side, or the mains voltage imbalance istoo high.This message also appears in case of a fault in the input rectifier on thefrequency converter.Check the supply voltage and supply currents to the frequency converter.WARNING 5, DC link voltage high:The intermediate circuit voltage (DC) is higher than the over-voltage limitof the control system. The frequency converter is still active.WARNING 6, DC link voltage low:The intermediate circuit voltage (DC) is below the undervoltage limit ofthe control system. The frequency converter is still active.WARNING/ALARM 7, DC over voltage:If the intermediate circuit voltage exceeds the limit, the frequency con-verter trips after a time.Possible corrections:Select Over Voltage Control function in par. 2-17 Over-volt-ageControlConnect a brake resistorExtend the ramp timeActivate functions in par. 2-10 BrakeFunctionIncrease par. 14-26 TripDelay at Inverter FaultSelecting OVC function will extend the ramp times.Alarm/warning limits:Voltage Range 3 x 200-240 V AC 3 x 380-500 V AC[VDC] [VDC]Undervoltage 185 373Voltage warning low 205 410Voltage warning high (w/obrake - w/brake)390/405 810/840Overvoltage 410 855The voltages stated are the intermediate circuit voltage of the fre-quency converter with a tolerance of ± 5 %. The correspondingmains voltage is the intermediate circuit voltage (DC-link) dividedby 1.35VLT® AQUA DriveOperating Instructions 9. TroubleshootingMG.20.M5.02 - VLT® is a registered Danfoss trademark 1439