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ALARM messages VLT 5000 SW 3.1DISPLAY shows Possible reason(s): Try to:Warning 1Under 10 volts(10 VOLT LOW)

The 10 volt supply fromterminal 50 is below 10 volt.The power supply isoverloadedMax 17 mA/min. 590 Ohm

Disconnect terminal 50 Ifproblem continue, changecontrol card.If problem continue, thepower supply on the powerboard is defective.

Warning/Alarm2Live zero fault(LIVE ERROR ZERO)

The current signal onterminal 60 is less than 50%of the value set in parameter315 terminal 60 min scalingand the time set in parameter317 time outis elapsed andstop and Trip is chosen inParameter 318 Functionafter time out.

Check the:Signal wires are not brokenYour current source isworking properlyCheck the settings ofParameter 315, 317 an d 318

Warning/Alarm 3No motor(NO MOTOR)

The motor check function schosen in Parameter 122,and the VLT 5000 cannotdetect a motor.

Check the motor cable. Is anywires broken. Is the repairswitch open, check if you canclose it SAFETYCheck the motor vindings

Warning/Alarm 4Phase fault(MAINS PHASE LOSS)

One input phase to the VLT

5000 is missing.There is unsymmetri betweenthe input phases

Disconnect all power supplyto the VLT 5000. Rememberthe separate 24 Volt supplyterminal 35 & 36. When thedisplay is black, check allsupply wires to the VLT .

Check the symetry on the 3Ph power supply for the VLT

The voltage differencebetwen the phases must notexceed 2%.

Warning 5Voltage warning high(DC LINK VOLTAGEHIGH)

The intermidiate circuitvoltage (DC) is higher thanthe limit given by the controlsfor the drive.With brake3X220 Volt units: 384 Volt

3X400 Volt units: 801 VoltWithout brake3X220 Volt units: 405 Volt3X400 Volt units 840 VoltThe VLT is still active

Check if the voltage supply isup to specifications.Check the voltage sypply fortransients.Check the motor for runninggeneratoric (supplies voltage

back to VLT

: Extend the Ramp-downtime

Change to a unit withbrake.

Warning 6Voltage arning low(DC LINK VOLTAGELOW):

The intermidiate voltage (DC)is below the limit given by thecontrols for the drive.3X220 Volt units: 211 Volt3X400 Volt units: 423 Volt

Check the sypply voltage.If the VLT is unloaded,check if one phase is missing.

Warning/Alarm 7Overvoltage

The intermidiate voltage (DC)has exceeded the limit given

Check if the voltage supply isup to specifications.

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(DC LINKOVERVOLTAGE)

by the inverter hardware, andthe VLT will trip after thetime set in Parameter 410has passed.The voltage at trip is stated inthe displayThe limits are:3X220 Volt units: 425 Volt3X400 Volt units: 855 Volt

Check the voltage sypply fortransients.Check the motor for runninggeneratoric (supplies voltageback to VLT : Extend the Ramp-down

time Change to a unit with

brake. Check if the brake is

working properly.

Tip. After reset and restart,monitor the DC voltage. (indisplay or Parameter 614DataLog DC link voltage). Ifthe DC voltage is steadily

increasing, the problem maybe transients.

Warning/Alarm 8Undervoltage(DC LINKUNDERVOLTAGE)

The intermidiate voltage (DC)is below the limit given by theinverter hardware, and theVLT will trip after the agiven time depending on theunit.The voltage at trip is stated inthe displayThe limits are:

3X220 Volt units: 211 Volt3X400 Volt units: 402 Volt

Check the sypply voltage.Tolerance - 10%If the VLT is unloaded,check if one phase is missing.

Tip: You can monitor the DCvoltage in Parameter 614Data log DC link voltage

Warning/Alarm 9Inverter overload(INVERTER TIME)

The termal inveter protectionreports overload in theinverter.The warning comes, whenthe electronic counter(counting current and time)has reached 98% of max,and the alarm comes, whenthe counter has reached100%This warning/alarm can becaused by: Wrong motor data Defect motor VLT overloaded To long motor cables To high switching

frequency

This alarm can only e reset,when the counter is balow90%

After reset, and restart youcan correct the data givenabout the motor, Parameter102, 103, 104, 105, 106.You can reduce the switchingfrequency i Parameter 411.If the motor cables is longerthan specified in the DesignGuide, you can probalbysolve the problem by using aLC filter.You can monitor the thermalload of the inverter in thedisplay during operation .

Warning/Alarm 10Motor overtemperature(MOTOR TIME)

The VLT trips when themotor has been running toolong time with too high

Switch off the power supply tothe VLT . Don*t forget toswitch of the separate 24Volt

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current.This alarm is only relevant, ifETR Warning is choosed inParameter 128.

power supply for the controlBoard, af applied.Check the motor conditions,this function is for protectionof the motor. If everything isOK, start again.The counter for motor thermalload will be set to 0% whenyou disconnect the powersupply.You can monitor the thermalload of the inverter in thedisplay during operation .

Warning/Alarm 11Motor thermistor/MOTOT THERMISTOR)

The thermistor in the motorhas been opened by too highwinding temperature, r theconnection has been broken.

This alarm is only relevant, ifthermistor Warning orthermistor trip is chosed inparameter 128.The parameters 308 and 311must be programmed forthermistor

Check, that the motor is nottoo warm.Check the thermistor, and itsconnections

Check the parameters 308 &311 for correct setting.

Warning/Alarm 12Warning/Alarm 12Overcurrent

The torque is higher than thelimit in Parameter 221 & 222.Please note, there can be atime delay before trip, set in

parameter 409.Too short Ramp timesThe Parameter 308, 311 or314 can be set for torquelimit

Check the settigs ofParameter 221 &222.Check the motor data.Check the parameters for

ramps (207, 208, 209 and210)Check the parameters 308,311 and 314, and therelevant control signals.

Warning/Alarm 13Torque limit(TORQUE LIMIT)

The inverter peak current(app. 200% of nominal) hasbeen exceeded. There will bea very short warning period(app. 1 sec.) , and then atrip.This time can be reducedin Parameter 119. The timecan not be extended.

Switch of all power supply.Check the motor loadCheck the ramps, (Parameter207,208,209, and 210)Check parameter motor data.Check the Parameter 119.

Alarm 14Earth fault(EARTH FAUL)

There is an earth leakingcurrent on the output from theVLT .This leaking current can be inthe motor cable or in themotor

Check the motor cables andthe motor

Alarm 15Switch mode fault(SWITCH MODE FAULT)

Fault in the switch modepower supply.

Change the power card.

Alarm 16 There is a shortcircuit on the Disconnect the motor

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Short-circutting(CURR.SHORT CIRCUIT)

VLT output termianls. terminal, and reset andrestart the VLT .

Warning/Alarm 17Standard bus timeout(STD BUSTIMEOUT

The connection via serielcommunication (terminal68/69) is missing.This warning is only relevantif Parameter 514 is set toanothe value than off andonly after the communicationhas been missin for a periodlonger than the value set inParameter 513

Check the electricalconnection to terminal 68/69.Check the bus dress inParameter 501.Check the baud-rate.Parameter 502

Warning/Alarm 18HPFB bus timeout(HPFB BUS TIMEOUT)

Connection to HighPerformance Field Bus ismissing.Only relevant, if a buscommunication option is build

in to the VLT

Check the connections forHPFB.

Warning 19Fault in the EEprom onthe powercard.(EE ERROR POWERCARD)

The VLT has recognised afailure in the EEprom on thepower card. The VLT willproberly not restart afterpower of.

Change the power board.

Alarm 20Fault in the EEprom onthe control card.(EE ERROR CTRL CARD)

The VLT has recognised afailure in the EEprom on thecontrol card. The VLT willproberly not restart after

power of.

Change the control board

Alarm 21Auto-optimisation OK(AUTO MOTOR ADAPTOK)

This is not an alarm, but anotice, that everything isOK

Reset the VLT

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