Owner manual

ULTRA-CUT 100 XT
Manual0-5272 APPENDIX A-61
Troubleshooting:
1. IfSystemBiasboardhaseitherthewrongjumperorisdefectiveitwillcallouttherstinvertersection,code
231,becausealltheinverterswon’tmatchtheincorrectsignaland1Aischeckedrst.
a. ForthejumperWire#48shouldbeconnectedfromJ61-1to:
i. J61-2for208-230VAC
ii. J61-3for400VAC
iii.J61-4for480VAC
Check for proper connection and continuity.
b. SystemBiasmaybedefectivereportingthewrongvoltageID.OntheoutputoftheSystemBiasboard
atJ62measurerelativetoTP1or(J62-8,24VDC_RET)toJ62-12forsignal/VAC_IDAbandJ62-14for
signal/VAC_IDBb.The2signalsshouldreadaccordingtothistable.“0”=10-12V;“1”=24V.
signal 230V 400V 480V ERR
/VAC_IDAb 0 1 0 1
/VAC_IDBb 0 0 1 1
2. Defectiveinverter,ribboncableorCCM.
a. Ontheinvertersectionswaptheribboncableoftheinvertersectionwhosefaultwasindicatedwiththat
ofadifferentinvertersection.Iffaultremainsunchanged,stillcallsouttheoriginalinvertersection,the
problem is with either ribbon cable or CCM. If fault changes to the different section, the one the ribbon
cablewasswappedwith,thenit’stheinverterthat’sdefective.
b. IfthefaultremainedunchangedinStepA,ontheinverterend,puttheribboncablesbackintheiroriginal
positions.NowswapsuspectribboncablewithanotheroneontheCCM.Ifthefaultnowmovestoa
differentsectionit’stheribboncable.IfitremainswiththeoriginalsectiontheproblemistheCCM.
237 Too Few Inverters Found
Theremustbeaminimumof2invertersectionspresenttooperate.Weknowtheribboncableforinvertersec-
tion1Aisconnectedorelsewewouldhavecode224.Duringthepowerupsequence,beforepowerisconnected
totheinverters,theCCMdoesacontinuitytestthroughtheribboncabletoseeifaninverterisconnected.If
itdoesn’tseecontinuitywithatleastoneotherinverteritassumesnoneareconnected.
Possible causes:
• Ribboncabledisconnectedordefective.
• Inverterdefective
• CCMdefective.
Troubleshooting:
1. Checkthatallcablesareconnected,latcheslockeddown,atboththeinverterandCCMends.
2. Ifthisfaultoccursit’smostlikelyona100Aunitwhichonlyhasonesection(1B)inadditiontothe1Asec-
tion.Iftherewere2ormoreadditionalsectionsit’sextremelyunlikelyallribboncablesorCCMconnectors
wouldbedefective.
a. Swaptheribboncablesoftheinvertersection1Aand1B.Iffaultremainsunchanged,still237,problem
iswitheitherribboncableortheCCM.Iffaultchangesfrom237to224indicatinginverter1Amissing,
thenit’stheinverterthat’sdefective.
b. Ifthefaultremainedunchangedinstepa.,ontheinverterendputtheribboncablesbackintheiroriginal
positions.NowswapsuspectribboncablesontheCCM.Ifthefaultnowchangesit’stheribboncable.
If it remains the same it is the CCM.
c. If there are 2 or more ribbon cables in addition to the one on section 1A then CCM is seeing none of them
connected which indicates the CCM is faulty.