NSK ASTRO-E 400Z - 22．Trouble Shooting

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22  Trouble Shooting
Trouble CheckPoints Cause Inspect/CorrectiveAction
Useanapprovedtestertotestvoltageatthe
poweroutlet.ConsultwithaIicensed.electrician
priortoanyelectricalworkorchecks.
InsertPowerSourcePlugintooutletwithfirmly.
Checkthepowercableconnectionatthe
controlunit.
NovoltageinPowerSource
Line.PowerSourcePlugis
disconnectedornot
connectedfirmly.
Refertosection8ChangeFuse,checkiffuse
(250V-T3.15AL)isblown.Evenifonlyonefuse
isblown,bothfusesneedtobechanged
together.
BlownFuse.
Checkthetemperatureofthebottomofunit.If
thebottomoftheunitisveryhotthethermal
protectionsystemhasshutoffmotorpower.
Lettheunitsitfor20minutesandrestartthe
system.
ThermalShutdown.
IfE1,E8orEHErrorCodeisdisplayedcorrect
thecauseoftheerrorandresetthesystem.
Errorlampislit.After
resettingsystem,Errorlamp
isnotlitwithmotorOff,but
Errorlamplitesagainwhen
motorisswitchedOn.
IfE3,E4,E7,EAorEEErrorcodeisdisplayed,
checktherelatedsystemandcorrectthecause
oftheerror.Resetthesystem.IfE4is
displayedwait20minutesbeforerestartingthe
system.
ChecktheMotorSpeedSelectionSwitchand
settoEXT.
Errorlampcannotbeshut
off.
MotorSpeedSelection
SwitchissettoINTor500
Check+24VDCpowersupplyandconnecting
wires.
Novoltage(+24VDC)on
Startline.
Checkif+0-10VDCbetweenPin10andPin23
onCN2.Ifnovoltagetheproblemisexternalto
theNSKcontrolunit.
NovoltageonVRline.
EAErrorcannotberesetbyrecyclingtheStart
Switch.ShutdowntheStartsignalonCN2and
cyclethePowerSwitchOFFandON.
EAError.
CheckshortingpinonCN1ifnotusingEmergencyStop
System.IfusingEmergencyStopSystem,check
continuityofconnectionstomachine
,
ssafetysystems.
EEError.
Novoltage(+24VDC)on
DIRINline.
MotorDoesNotRun
MotordoesnotRun
(PowerLampislit)
MotordoesnotRun
(PowerLampislit)
AutoModeisset
MotordoesnotRun
(PowerLampislit)AutoModesisset.
PowerSwitchison,but
powerlampdoesnot
light.
AfterpushingtheStart
button,nothing
happens.AutoMode-
motordoesnotrotate
with+24VDConthe
Startline.
Can
,
tcontrolspeedform
exernalsignal.
Motordoesnotrotate.
Can
,
tRotateinreverse.
Can
,
tcontrolspeedfrom
externalsignal.
Can
,
treseterror.