Troubleshooting and fault elimination
8-2 820XBA1097
8.1.3 Maloperationofthedrive
Maloperation Possiblecauses
Motordoesnotrotate
-
DC-busvoltagetoolow
(redLEDisblinkingevery0.4s;messageLUisdisplayed)
-
Controllerinhibited
(greenLEDisblinking,displayoftheoperatingmodule:OFF,
STOPorAS_LC)
-
Setpoint=0
-
DCbrakingactive
-
Quick-stopfunctionactive
-
JOGsetpointactivatedandJOGfrequency=0
-
Faultisindicated(seechapter8.3)
-
Mechanicalmotorbrakeisnotreleased
Motordoesnotrotate
smoothly
-
Defectivemotorcable
-
MaximumcurrentC022andC023toolow
-
Motorunderexcitedoroverexcited(checkparametersetting)
Currentconsumptionof
motortoohigh
-
SettingofC016toohigh
-
SettingofC015toolow
-
C088andC091arenotadaptedtothemotordata.
8.2Faultanalysisusingthehistorybuffer
Thehistorybufferisusedtotracefaults.Thefaultmessagesare
storedinthehistorybufferintheorderoftheiroccurrence.
Thehistorybufferhas4memorylocationswhichcanbeaddressed
viacodes.
Structureofthehistorybuffer
Code C0168 Entry Note
C161 Memorylocations1 Activefault
Ifthefaultisnolongeractiveorhasbeen
acknowledged:
C162 Memorylocation2 Lastfault
acknowledged:
-
Thecontentsofthememorylocations1-3willbe
savedina”higher”location.
C163 Memorylocation3 Lastbutonefault
savedina”higher”location.
-
Thecontentsofthememorylocation4willbe
eliminatedfromthehistorybufferandcannotbe
C164 Memorylocation4
Lastbuttwofault
Thecontentsofthememorylocation4willbe
eliminatedfromthehistorybufferandcannotbe
readanylonger.
-
Memorylocation1willbedeleted(=noactivefault).