Skyjack SJ30AJE - Page 170

170
SJ30AJE, SJ30ARJE196274AF
Section 5 – Procedures Base
Flash
Code
DisplayedonMDI ProbabableCause Remedy
Cause1:
BeforeswitchingtheLineContactoron,thesoftware
checksthepowerbridge:itturnsonalternatinglytheLow
sidePowerMosfetsandexpectsthephasesvoltageto
decreasedownto‐BATT.Ifthephasesvoltageisigherthan
10%ofnominalbatteryvoltage,thisalarmoccurs.
Cause2:
Thisalarmmayoccuralsowhenthestartupdiagnosisis
overcome,andsotheLineContactorisclosed.Inthis
condition,thephases’voltagesareexpectedtobelower
than1/2batteryvoltage.Ifitishigherthanthatvalue,
faultstatusisentered.
Troubleshooting:
‐Iftheproblemoccursatstartup(theLineContactordoes
notcloseatall),check:
‐Motorinternalconnections(ohminternalconnections
continuity)
‐Motorpowercablesconnections
‐IfthemotorconnectionareOK,theproblemisinsidethe
controller,replaceController.
‐IftheproblemoccursafterclosingtheLineContactor(the
LineContactorclosedandthenopensbackagain),check:
‐Motorconnections
‐Makesuremotorphaseswindings/cablesdonothave
leakagestowardschassis
‐Ifnoproblemsarefoundonthemotor/cables,the
problemisinsidethecontroller,Replacecontroller.
0XA40 AUX.DRIV.SHRT. Mosforelectricbrakeisshorted
1.Cyclekeyswitch
2.Checkforshortorlow‐impedence
toelectricbrakes
3.Replacecontrollerthatshowsthefault.
0XA41 WRONGSETBAT.
Controllerrejectsthebatteryvoltage
reading
Atstart‐up,thecontrollerchecksthebatteryvoltageand
verifyitiswithinawindowaroundthenominalvalue.
Troubleshooting:
‐CheckthatthecontrollerSETBATTERYparametervalue
matchesthebatterynominalvoltage.
‐CheckthatTESTERMENU/BATTERYVOLTAGEparameter
showssamevalueasthebatteryvoltagemeasuredwitha
voltmeter.Ifitdoesnotmatch,thendoan“ADJUST
BATTERY”function.
0XA42 AUX.DRIV.OPEN.
Driverofelectricbrakeisdamaged
(notabletoclose)
1.Checkwiringbetweencontrollerandelectricbrake
2.Replaceelectricbrakes
3.Replacecontrollerthatshowsthefault.
0XA49 LIFT&LOWER
Liftandlowerrequestedatthesame
time.
Checkjoystickoutputs.
Factoryreset(ClearEeprom)
SelfcheckofPowercomponentsand
Motor
VMNHIGH0XA31
ZAPI MDI-CAN Controller Master Codes (continued)