Download VSC Service Manual
Transcript
ZENER r VSCServiceManual r ZENERTECHNOLOGY AND QUALITYASSURANCE S i n c e 1 9 7 8Z e n e rE l e c t r i ch a s s u p p l i e dm a n yt h o u s a n d so f A C d r i v e st o A u s t r a l i a inn d u s t r i e sT.h e s e d r i v e sh a v e b e e n i n s t a l l e di n t on u m e r o u sa p p l i c a t i o nrse s u l t i n g i n a w e a l t ho f i n h o u s ee x p e r i e n c e . The ZenerVSC AC motorvariablespeed controlleris the culminationof this exoertise.moderntechn o l o g ya n d i n d u s t r i aal p p l i c a t i o nrse q u i r e m e n t s . The ZenerQualityAssuranceProgrammeensuresthat everyVSCmanufactured has provento operate correctlyin the productiontest bay beforedespatch. VSC PRODUCTWARRANTY ZenerElectricwarrantsthe VSCagainstdefectiveworkmanship and materialsfor a periodof 24 months from the date of despatch.Such defectswill be rectifiedfree of chargefor both labourand material, at Zener Electric'spremisessubjectto: 1 . Z e n e r E l e c t r i c ' sc u s t o m e rr a i s i n ga n o r d e r u p o n Z e n e rf o r s e r v i c ea n d o r r e p a i r s ,s u b j e c tt o a warrantyclaim.The order is to stateparticulars of the modeland serialnumber,the date of original purchaseand invoice/delivery docketnumber. 2. All damage resultingfrom incorrectinstallation or use otherthan in accordancewith the Instruction ) Manualissuedby Zener Electricis excludedfrom this warranty. 3 . T h e W a r r a n t yb e i n g r e n d e r e di n v a l i di f t h e p r o d u c ti s m i s u s e do r i f a n y u n a u t h o r i z eadl t e r a t i o n , m o d i f i c a t i oonr s u b s t i t u t i oonf a n y p a r to f t h e p r o d u c tb e m a d eo r t h e s e r i a ln u m b e ro f t h e p r o d u c t is defacedor altered. (both ways) is to be met by the owner if it is necessaryto returnthe 4. The cost of transportation producto , r a n y p a r t o f i t , t o Z e n e rE l e c t r i c ' ps r e m i s e s . 5 . A c h a r g eb e i n ga c c e p t e db y t h e o w n e rf o r t r a v e l l i ntgi m ea n d e x p e n s e si n c u r r e di n c o n n e c t i o w n ith warrantyserviceat the user'ssite as requestedby the owner, 6. lf the productwas not purchasedirom ZenerElectricdirectly,thena warrantyclaimmustbe lodged w i t h t h e o r i g i n asl u p p l i e ri n t h e f i r s ti n s t a n c eR . e p a i r sw i l l n o t b e e f f e c t e db y Z e n e rE l e c t r i cu n l e s s a p p r o v e db y t h e o r i g i n asl u p p l i e r . 7 . G o o d s n o t o f o u r o w n m a n u f a c t u r ien c o r p o r a t e idn o u r s u p p l yo r m e r c h a n t e db y u s , c a r r yt h e i r maker'swarrantyonly. B . G o o d sr e t u r n e df o r c l a i mu n d e rw a r r a n t yw i l l b e a c c e p t e do n t h e c o n d i t i o nt h a ts h o u l dt h e c l a i mb e r e j e c t e dt h e n a l l c o s t s ,i n c l u d i n gi n s p e c t i o nw, i l l b e c h a r g e dt o t h e c u s t o m e r ' a sccount. SAFETY Y o u rV S C m u s t b e a p p l i e d ,i n s t a l l e d a n d o p e r a t e di n a s a f em a n n e r l.t i s t h e r e s p o n s i b i l iot yf t h e u s e r t o e n s u r ec o m p l i a n c e w i t ha l l r e g u l a t i o nasn d p r a c t i c e sc o v e r i n gt h e i n s t a l l a t i oann d w i r i n go f y o u rV S C . T h i s I n s t r u c t i oM n a n u a ls h o u l db e c o m p l e t e l yr e a d a n d u n d e r s t o o db e f o r ea t t e m p t i n g t o c o n n e c to r o p e r a t et h e V S C .O n l ys k i l l e dp e r s o n n esl h o u l di n s t a ltlh i se q u i p m e n t . THE CONTENTS OF THIS MANUALARE SUBJECTTO CHANGE WITHOUTNOTICE l r\- TABLE OF CONTENTS Useof thisManual forServicing Equipment Required SafetyWarnings Glossary of Terms Definitions VSCSetUpforServicing Listof Symptoms Module ModuleChecking Procedures Transistor BridgeRectif ierModule BaseDriveModules Module Capacitor Module ModuleReolacementProcedures Capacitor ControlBoard DCCT Module InputRectifier Transistor Module SensorWiring Page 2 2 3 4 4 o B 12 13 15 to 18 1B 19 19 19 20 TABLEOF FIGURES VSCControlBoardLayout VSCModuleLocations VSCBaseWiring InternalWiring andSparePartsList-VSC-H InternalWiring andSparePartsList-VSC-G Internal WiringandSparePartsList-VSC-S VSCVoltageSelection Procedure 5 7 14 21 22 23 24 ModelNumbers VSC-H3 VSC-H4 VSC-Hs VSC-H1O VSC-HI3 VSC-H17 VSC-H24 VSC-H32 VSC-H38 VSC-H44 VSC-G13 VSC-S3 VSC-G17 VSC-S4 VSC-G24 VSC-Ss VSC-G32 VSC-G3B VSC-G44 VSC-G6O page 1 US E O F T H I S MA N U A L This manualis intendedas a guideto findingand repairingfaultsin the ZenerVSC.For the experienced servicepersonit provides alltheinformation necessary to isolate a faultymoduleand replaceit. Thismanualdoesnotcontaininformation regarding therepairof faultymodules aswe recommend thatall faultymodulesbe returned Io ZenerElectric or an authorized distributor for repair.Thisis becauseeach moduleis complexand in orderto be surethey functionproperly,they must conformto comprehensive testspecifications, furtherdamagecouldresult. otherwise It is assumedthatthe personattempting to servicethe VSChas someknowledge of electronic components, resistors, sufficient at leastto identifycapacitors, transistors, etc,and the modules whichtheymakeup in the VSCchassis. pageslistfaultsby theirsymptoms. Thefollowing lt is impossible to listeverypossiblesymptom individually for morethanone symptomin and so it may be necessary to readthe procedures orderto determine the bestcourseof action. lf youare directedto checka module,referto the Checking Procedure for thatmodule. lf you needto replacea module,referto the Replacement Procedure for thatmodule. Serviceof the VSCshouldonlybe attempted workingwithexposed by peoplewithexperience highvoltages. The TroubleShootingGuidein the VSCInstruction Manualshouldbe followedcarefully before usingthismanualto ensurethatthe faultobservedis not an external one.Manyhourscan be wastedlookingin the wrongplacefor the fault. A Glossary of Termsand a pageof Definitions arealsoincluded. EQU I P M E N TRE QU IR E DF OR S E R VICING A digitalor analogmultimeter withthe following ranges: AC Voltsup to 500 V range DC Voltsup to 1 000 V range DC Amps300 mA range Resistance 30 to 50 000 ohmsranges DiodeTestRange An Electronic Insulation Tester(500Vdc). A 1 amp,100V rectifier diode Slottedand Philipsheadscrewdrivers. M4 (7 mm AF),M5 (8 mm AF)and M6 (10mm AF)SocketDrivers, A goodworkingknowledgeof thesetoolsis veryimportant. page 2 ). C CAUTION RISK OF ELECTRICSHOCK SAFETYWARNINGS The VSC containsvoltagelevelsin excessof 700 Vdc, Thesevoltagesalso appearon the controlboard.Greatcare must be takenat all timeswheneverAC poweris applied to avoid electricshockor damageto the VSC. Whileusinga multimeter to measurevoltagesin the VSC be very carefulnot to shortthe probestogetheror to any pointotherthan the ones being measured. It is essentialthatall componentsin the VSCare installedwheneverthe AC powersupply is connected.DO NOT OPERATEthe VSC with any componentsor modulesremoved unlessdirectedto do so by the serviceprocedure, In particular, the DCCT,ELCTand the Capacitor Modulesmustbe properlyconnected AT ALLTIMESor severedamagemayresult. BeforedoinganyworkinsidetheVSC,alwaysbe surethattheAC powersupplyis safely disconnected and thatthe Capacitor Modulesarefullydischarged. Alwaysmeasure theDCBussvoltageandwaituntilit fallsbelow24VdcbeforeproceedingwithanyworkinsidetheVSC. GLOSSARYOF TERMS concise,we haveusedtermswhichmaybe unfamiliar. In orderto keepthisprocedure Thefollowinglistdefinesthesetermsfor our serviceprocedure. Whenthe input powersupplyis connectedand turnedon, the ControlBoardwaits and the DC Buss capacitorsare 3 secondswhile powersuppliesare established charged.DuringthisperiodtheVSCcannotbe startedand the outputis disabled. andfiltered Alsoknownas the DC link,thisis simplytheAC mainsinputsupplyrectified DCBuss ready for the transistorinverterto convertback to a variablefrequency,variable voltageAC supply. 1 41lime_s the inputline{oline Thisis the voltagelevelof the DC Buss.lt is nominally BussVoltage (over-hauling loads)the DC Bussvoltagemay rise voltage.Duringmotorregeneration circuitdisablesthe VSCif this abovethis nominallevel.The OverVoltageprotective voltagerisesabovean internalpresetlevel. This is a currentsensingdevicewhichis ableto DirectCurrentCurrentTransformer. DCCT isolation. whilestillmaintaining senseDC currentlevelsin a conductor, sensesan imbalance This currenttransformer Earth LeakageCurrentTransformer. ELCT in the currentflowingin the +ve and -ve DC Busswires.Any imbalanceindicates a faultcurrentto Earth. The inputvoltageis the line{o-linevoltagebetweenterminalsLl-L2,L2-L3and Ll-L3. lnputVoltage PrintedCircuitBoard. PCB lt applies500Vdc betweenitsterminals resistance. insulation Tester ls a devicefor measuring Insulation of Ohms).We recommend in megohms(millions resistance the insulation and measures testerbe used. insulation thatan electronic ResetPeriod ) This Manual UsedThroughout Definitions plug,socketor component network. youwill be askedto measurea voltageon a particular Frequently valuesin the VSC. applywhenmeasuring definitions Thefollowing Plug Socket PLP PLC PLB PLE PLT PLI PLU PLV PLW cN4 1/PLP 3/CN4 to thewires. whichis attached Thepartof theconnector solderedintothePCB. Thepartof theconnector ControlBoardPowerSupplyConnector. ModulePowerSupplyConnector. Capacitor Connector. DCBussVoltageSensing ELCTConnector. Temperature SensorConnector. DCCTCurrentFeedbackConnector. for PhaseU. BaseDriveConnector for PhaseV. BaseDriveConnector PhaseW. BaseDriveConnectorfor (5 pin). Network Socket Component pin 1 of connector PLPetc. pin3 of component network CN4,etc. on the control Referto the VSCControlBoardLayouton page5 for the locationof eachof theseconnectors board. at the end of the you to checka modulereferto the CheckingProcedures Wherethe procedureinstructs symptomssection. at the end of this Procedures to replacea module,referto the ModuleReplacement Whenit is necessary manual. page 4 ) VSC Control Board Layout - tr====l cNlA lo o ffiu-;;-um 'tu I 6 o - l 6 '1" o I I I I I I I I I B tr====f cNlE lo o CNIF o ol 166-6-d-6-o-ltJ_ _ _ _EJ 166'E-6-o-61 1 1 6 brt 6 (J CN1B o ol I I a I _ _ _ l vsc r-----rr---rvAc ASSY 80859I--l o Fl' u D PLI tr===f PLT tr==f f 6 ' ! - o - - p - 6 - E - E - Et l. . . . t n-.-.---\-l!----!:L___J ll I I EoEE-o-EE-tl CN5 E=l DTn l K l PI.C PLP tr=f tr===l n l . . l t]{i trI u?Ei_ -" PLTST PLE PLB tr=f, tr==l I. o ol lo ol lo ol lo ol lo o q ol L___r L_J L__-J L_J L___J - lfoj-!-o-tdlcN4 o \R1J cN3 |6-l PLF E] lyYrc LljJ 2 (+) E P] @@@ 1 (-) I ZERO 50 00 f.-n LK5 a r tol lol lol t.l ACCS- ECEL Lo{t ul|t TTTTTTTIIo o @@@@@@@@@ Irl2pl1l0l6l7Fl FII/D REV stB EN oooF= yAX lfEE IJX sFEs stA TCCEL rCE rstE llrE ST RT .... v/nz aoGT Flt X cqap SJP cqP I uytr cNzfl flt]-I]-Tn r I lzlrlrlolclzlrl l o d o o o o o o l l:l tol l"l t9t cN1 Pts EF IEEE-E-E-E-E-EI TI----\l l o E o o o o g E l UV OV OT @ Z Z e (7 rv Y) <) @ .v a e (,) e Z .> V) Z eeo Location Key Component Networks F7 cN2 trO cN3 E1 cN4 D6 cN5 D5 CN1 CNlA cNlB cNlC cNlD CNlE cNlF 41 A2 A3 A4 A5 A7 Links LK1 tK2 LK3 LK4 LK5 D5 n6 nq E4 Conn ectors PLB PLC PLD PLE PLF PLI PLL D7 D7 D5 D7 E2 D6 G2 PLP PLS PLT PLU PLV PLW PLTST D8 C7 D6 A2 A4 A6 D2 S w i t c he s Trimpots SWA FJ SWB n z VR 0 VR 1 VR 2 VR 3 VR 4 E E E E A 4 + 4 6 8 V S C S E T UP FOR SERVICING For easeof servicingwe recommend that you reconnect the controlcircuitryto the minimum requiredfor VSCoperation. Thefollowing connections are recommended: VSC Gontrol Board 1 2 3 4 5 6 7 I I 10 11 12 13 14 15 16 17 18 ) to Stort Start./Stop Swltch 155 ohm to 5000 ohm Spccd Control Potcntlomctcr In eachstepof the serviceprocedure willappeara "statusLine"as shownberow: PowerSupplyOtf VSCStopped Speed:0% It is importantthat you observethis line carefullythroughoutthe procedureto obtainthe correct resultat eachstep. PowerSupplyOff MainsAC supplyis NOTconnected to L1,L2,L3. PowerSupplyOn MainsAC supplylSconnected to L'l,L2,L3. VSCStopped Start/Stop switchis OPEN. VSCStarted StarVStop switchis CLOSED. Speed:0%to 100% Setting of speedcontrolpotentiometer. Oo/o=zeto speed,PotCounterClockwise 100%:fullspeed,PotClockwise lf it is not possibleto connectthe VSCas shownaboveyou mustdetermine howbestto useyour controlcircuitto achievethe aboveconditions. page 6 ) VSC MODULELOCATIONS CHASSIS A VSC Ghaegls Typc VSC ltlodule Key rl-------h LL_i__! t--;l 1 2 J 4 5 6 7 8 9 G H A S S T SB nEfT-t-t l'll'l'l'l l l l l C H A S S T SD nnn l l Hlgh Performoncc Gcnorol PurDosc Slngle Phose VSC_H3 VSC_H4 VSC-Hs VSC-HIO VSC_H13 VSC_H'I7 VSC_H24 VSC-G13 VSC-G17 VSC_G24 VSC_G32 A B B B VSC-S3 A VSC-54 A VSC-55 A A A A A A B B vsc-G38 c vsc-H32 c vsc-H38 D VSC_G44 D vsc-G60 D VSC_H44 D G H A S S T SC EEE l-71l '-------l - l z l l l DIRECTCURRENTCURRENTTRANSFORMER NOTE:There ore o number of different types of DCCT. They ore not interchongeoble. 8 l MODULE TRANSISTOR BRIDGERECTIFIER FAN TRANSFORMER TERMINALS MODULE CAPACITOR IEMPERATURE SENSOR SNUBBER BOARD OUTPUTCHOKES l l l r---=-l r/ rl----l L1 EARTH LEAKAGE CURRENTTRANSFORMER NOTE: There ore o number of different types of ELCT. They ore not interchongeoble. r_-_ I l " l OverVoltageTrip at Endof ResetPeriod PowerSupplyOn VSCStopped Speed:0% Measurethe InputVoltageand check that it is within+10% to -15"/oof the nameplatevoltage. M e a s u r et h e D C B u s sv o l t a g eb e t w e e n1 / P L B( - ) a n d 3 / P L B( + ) . l t s h o u l db e l . 4 x l n p u t v o l t a g e . lf it is higherthanthisthenelectricalnoisemay be presenton the AC mains.Seethe sectionbelow regardingelectricalnoise. lf the DC Bussvoltageis correct,measurebetweenI1PLPand 3/PLP.You shouldget 30 Vac+3 Vac. lf not, check the controltransformer and it's wiringfor damageand replaceit if necessary. lf the voltageat PLPis correct,replacethe ControlBoard.Referto the ControlBoardReplacement Procedure. OverVoltageTripWhenZSP LED GoesOut PowerSupplyOff VSCStopped Speed:0% LocatetheCapacitor Module(s) andtherelay(s) on them.TurntheAC PowerSupplyon andcheck thatALL the relaysenergizeapproximately 1 secondafterpoweris applied.lf anyof the relays do notenergizereplacethe Capacitor moduleimmediately or furtherdamagemayresult. Checkeachcapacitormodule.Replaceas necessarv. ) IntermittentOver VoltageTripping PowerSupplyOn VSCStopped Speed:0% Intermittent OV trippingcouldbe causedby oneof twothings.Eitherthereis an intermittent fault in the ControlBoardor thereis electrical noiseon the mainpowersupply.The latteris most commonand can usuallybe verifiedby observing the DecelLimitLEDon thecontrolboardwith the VSCpoweredup but notoperating. lf the DecelLimitLEDflashesoccasionally, and theseflashescorrespond to OVtrips,thenthere is probablyelectrical noiseon theAC mainspowersupply. ElectricalNoise Thereis no simplesolution forelectrical noiseproblems. Thebestapproach is to analyse thenoise for typicalamplitude and duration characteristics, thendesignan appropriate filterto removethe noise.lf you thinkyou havea noiseproblempleasecontactour salespersonnel to discussthe problem, bestsolution for yourparticular Over CurrentPlus or Over CurrentMinus at End of Reset Period PowerSupplyOn VSCStopped Speed:0% Wheneverthe transistordriversare disabled,no currentcan flow, thereforethe fault lies in the controlboardor the DCCT.Removethe plug fromconnectorPLl.Measurebetween1/PLl(+) and 3/PLl (-) on the controlboard,it shouldbe 12 Vdc+O.1Vdc. lf not replacethe controlboard.lf OK, insertthe plug back intoconnectorPLl.Measurethe voltagebetween2lPLl(+) and 3/PLl(-) it shouldbe 6 Vdc+0.5 Vdc. lf not, replacethe DCCT. Measurebetween2/CN4(+) and 3/CN4(-) on the dc millivoltsrange.lt shouldbe 0.0 Vdc+300 mV. lf it is outsidethis range,adjustVRl3on the controlboard untilthe meterreads0.0 Vdc+30 mV. lf you cannotachievethis, replacethe DCCT. lf the VSC stilltrips on OC+ or OC- at the end of the resetperiod,replacethe ControlBoard. page I ) c OverCurrentPlusor OverCurrentMinuswhenZSP LEDGoesOut PowerSupplyOff VSCStopped Speed:0% Checkthe PowerTransistors. lf one or moreis faulty,replacethe transistor module(s)as necessary. Checkthe BaseDriveCircuits.lf any of the six circuitsdo not operateproperly,replacethe control board BEFOREproceedingany furtheror transistordamagemay result. PowerSupplyOn VSCStopped Soeed:0% Removethe plug from connectorPLl. Measurebetween1/PLl(+) and 3/PLl (-) on the control board,it shouldbe 12 Vdc+0.1 Vdc. lf not replacethe controlboard.lf OK, insertthe plug back into connectorPLl, Measurethe voltagebetweenzlPLl (+) and 3/PLl(-) it shouldbe 6 Vdc+0.5 Vdc. lf not, replacethe DCCT. Measurebetween2lCN4(+) and 3/CN4(-) on the dc millivoltsrange.lt shouldbe 0.0 Vdc+300 mV. lf it is outsidethis range,adjustVRl3on the controlboard untilthe meterreads0.0 Vdc+30 mV. lf you cannotachievethis, replacethe DCCT. lf the VSC stilltrips on OC+ or OC- when the ZSP led goes out, replacethe ControlBoard. EarthFaultTrip PowerSupplyOff VSCStopped Speed:0% Inspectthe ELCTfor physicaldamage.Removethe plug from PLEand measurebetween1/PLE and 2/PLEon the plug with a multimeter on ohms range.lt shou.ldbe a shortcircuit.lf not,replace the SensorWiring.lf the ELCTis OK, plug it back into PLE. lf your model VSC has output chokes (referto the InternalWiringdiagrams)removethe choke wiresfrom the TransistorModules.Use an Insulation Tester(500V) to check betweeneach of the outputterminals(Ml, M2, M3) and the Earthterminal.Replaceany chokeconnectedto an output terminalwhich is less than 50 kohmsto Earth. lf the VSC stilltrips on EarthFault,replacethe ControlBoard. UnderVoltageTrip PowerSupplyOn VSCStopped Speed:0% Measurebetween1/PLPand21PLP on the controlboard.You shouldread 15Vac+2Vac. Measure between3PLPand ZPLP.Againyou shouldget '15Vac+2 Vac. lf not,checkthe controltransformer for damageand replaceas necessary Measurebetween1/CN4and 3/CN4for a voltagebetween4.18Vdc and 6.88Vdc. lf this voltage i s l e s st h a n4 . 1 8V d c , c h e c kt h e w i r i n gb e t w e e nt h e D C B u s sa n d c o n n e c t oP r L B ,a l s oc h e c kt h e B r i d g eR e c t i f i eM r odule. lf the voltageat CN4 is correct,replacethe ControlBoard. Checkthe BridgeRectifierModule.Referto the CheckingBridgeRectifiersection. Checkthe CapacitorModule(s)as describedin the CheckingCapacitorModulesection. TriP OverTemperature is notblockedwithany properly andthattheheatsink is operating Checkthatthefan (if installed) and check grills for blockages and filters all chect< matter.lf th; vSC iJ in an bnclosu"re, t,creign fan(s)(iffitted)areoperating. thatthe enclosure PowerSupplyOff VSCStopped Speed:0% Measurethe temperatureof the heatsink(by touch if you do not have a thermometer) Soeed=0% VSCStopped PowerSupplyOn Measurebetween1/PLT(+) and 2PLf (-). The voltageshouldbe: "C)x10mVt5% V : ( 2 7 3 + H e a t s i n kT e m P lf you do not obtainthis, replacethe SensorWiring' PLT is less The temperaturetnp point is 3.52 Vdc which correspondsto 80"C, lf the voltageat board. the control replace than 3.52 Vdc and tne Of LED illuminates PowerLED DoesNot llluminate PowerSupplyOn VSCStopped Speed:0% Measurebetween1/plp and 2/pLPon the controlboardfor 15 vac't2 Vac.Measurebetween 3/pLp and2lpLPfor 15 Yac+2Vac.lf not replacethe controltransformer. Speed:0% VSC Stopped PowerSupplyOff ) lf the voltageat PLP is OK then removethe plug from connectorPLI' illuminate' lf the power On LED iluminates,replacethe DCCT.lf the PowerOn LED stillfails to replacethe ControlBoard. of lnputPower FusesBlowOn Application Checkthe BridgeRectifierand replaceif necessa;y' Checkthe TransistorModule(s)and replaceif necessary' checkthe controlboardbasedrivecircuits. module(s)then lf thereis any damageto the transistor Checkthe CapacitorModule(s)and replaceif necessary' Soeed:0% VSCStopped PowerSupplyOff Testerto checkbetweenthe control Removethe plug from connectorPLP.Use an Insulation if thewindingis lessthan transformer the control primary*indingand Earth.Replace transformer Earth.lf thetransformer and winding secondary the soo k ohmsto Earth.Repeitthetestbetween PLP' is OK, plugit backintoconnector Motor Phase Voltageor Currentlmbalance and replaceif necessary. for an opencircuittransistor Module(s) checktheTransistor and replaceif necessary Checkthe ControlBoardBaseDriveCircuits replacethe control or the basedrivecircuits, module(s) lf no faultis foundin eitherthe transistor board. Motor lnstabilitY c hec k module, if ,ther eis m or ethanoneCapacitor In p a r ticular r d u l e (s). C h e c kt h eC a p a ci toMo not damaged. are tf,"i tn" wiring'toaltthe modulesis intactand thatoneor morecapacitors page10 ) c AccelLimit(CurrentLimit)CircuitActivatesToo Early PowerSupplyOff VSCStopped Speed:0% VSCStopped Soeed:0% Inspectthe DCCTfor physicaldamage. PowerSupplyOn Removethe plug from connectorPLl. Measurebetween1/PLl(+) and 3/PLl (-) on the control b o a r d ,i t s h o u l db e 1 2 V d c + 0 , 1V d c . l f n o t ,r e p l a c e t h ec o n t r o b l o a r d .l f O K , i n s e r t t h ep l u g b a c k intoconnectorPLl.Measurethe voltagebetweenzlPLl (+) and 3/PLl(-), it shouldbe 6 Vdc+0.5 Vdc, lf not, replacethe DCCT. Measurebetween2lCN4(+) and 3/CN4(-) on the dc millivoltsrange.lt shouldbe 0.0 Vdc+300 mV. lf it is outsidethis range,adjustVRl3on the controlboarduntilthe meterreads. Vdc+30 mV. lf you cannotachievethis,replacethe DCCT. C h e c kt h eC a p a c i t oM r o d u l e ( s )l f.t h e r ei s m o r et h a no n e m o d u l ec h e c kt h ew i r i n gt o a l lm o d u l e s . lf the DCCTand the CapacitorModule(s)are OK then replacethe ControlBoard. The followinglistof symptomsindicatea ControlBoardFailure 0 EnabledLEDdoesnotilluminate whentheVSCis enabled. Direction LEDdoesnotilluminate whena direction is selected. Enabled/Direction ledsilluminate butVSCwillnotstart. SpeedReference selector doesnotfunction. RemoteTripled staysilluminated whenterminals 5 and 6 are bridged. SpeedReference inputsdo notwork. SpeedOutputdoesnotwork. LoadOutoutdoesnotwork. ControlBoardrelaydoesnotfunctionproperly. MODULES THETRANSISTOR CHECKING "Six-Pack"Modulesand "Two-Pack" The TransistorModulescome in two differentpackages, "Six-Pack"Modulescontainsix powertransistors, and so only one is requiredto make Modules. "Two-Pack"Modulescontaintwo power transistors, and so up the three phase inverterbridge. threeare requiredto make up the three phaseinverterbridge. "diode test" range.This range To check transistormodulesyou will requirea multimeterwith a junction.You will also need to be measuresthe forwardbiasedvoltagedrop of a semiconductor range. 1 000 Ohms the 100 to resistance on able to measure "Red"and "Black"leadsof the Forthe diode testson the transistormodules,we havedefinedthe multimeteras describedbelow. "RedLead" currentor positivelead Sourceof conventional "BlackLead" currentor negativelead Sinkof conventional TestingSix-PackModules PowerSupplyOff VSCStopped Speed:O% moduleandthenremoveallthewiringfromit.Set to thetransistor notetheconnections Carefully shownin the eachof theterminals between range,and measure to the appropriate the multimeter modulemustbe replaced. tablebelow.lf theresultof eachtestis notasshown,thenthetransistor to DiodeTestRange. Setthe multimeter Result Required BlackLead RedLead Op enCir cuit N P ( 2diodedr oPs) 0 .4to 1.0Vdc P N Op enCir cuit P U .V .W ( 1diodedr oP) 0 2 0to 0,50Vdc U,V ,W N ( 1diodedr oP) 0 .2 0to 0.50Vdc P U, V, W Op enCir cuit N U, V, W OpenCircuit BuP,BvP,BwP P Op enCir cuit Bu N U OpenCircuit BvN V OpenCircuit W BwN to OhmsRange(100to 1 000Ohms) Setthe multimeter 300to 800ohms EuP BuP 300to 800ohms EvP BvP 300to 800ohms EwP BwP 300to 800ohms EuN BuN 300to 800ohms EvN BvN 300to 800ohms EwN BwN lf the modulepassesthistest,replaceall the wiring.Referto the VSCBaseWiringdiagramfor detailsof the baseconnections. page 12 ) ) c TestingTwo-PackModules PowerSupplyOff VSCStopped Speed:0% Carefullynote the connectionsto the three transistormodulesand then removeall wiring from each one. For each transistormodule,set the multimeterto the appropriaterange,and measure betweeneach of the terminalsshownin the table below.lf the resultof each test is not as shown, then the transistormodulemust be replaced. Set the multimeterto the DiodeTest Range. @ RedLead C1 E2 C1 C 2 E1 E2 C2E1 C1 C 2 E1 BlackLead E2 C1 C2E1 Cl C2E1 E2 81 82 R esult OpenCir cuit 0 .80to 1.00Vdc OpenCircuit 0 20to 0.50Vdc 0.20to 0.50Vdc OpenCircuit OpenCircuit OpenCir cuit ( 2 d i o d ed r o p s ) ( 1 d i o d ed r o p ) ( 1 d i o d ed r o p ) Setthe multimeter to the Ohmsrange(100to 1 000Ohms). B1 82 E1 E2 50to 800ohms 50to 800ohms lf the modulepassesthis test, replaceall the wiring.Referto the VSC Base Wiringdiagramfor detailsof the base connections. Checkingthe BridgeRectifierModule Forthediodetestson the bridgerectifier modules, we havedefinedthe "Red"and "Black"leads of the multimeter as describedbelow. 0 "RedLead" "BlackLead" Sourceof conventional current or oositive lead Sinkof conventional current lead or negative PowerSupplyOff VSCStopped Speed:0% Notethe connectionsto bridge rectifiermodule,then removeall wiringfrom it. Set the multimeter to the diode test rangeand measurebetweeneach of the terminalsshownin the table below.lf the resultof each test is not as shown,then the bridge rectifiermodulemust be replaced.lf the modulepassesthe test, replaceall the wiring. RedLead + (KM+) - (-AM) + (KM+) AC1A , C2A , C3 - ( - AM ) A C 1 ,A C 2 A , C3 0 BlackLead - (-AM) + ( K M +) A C 1A , C2A , C3 + (KM+) AC1A , C 2A , C3 - (-AM) Result OpenCir cuit 0.60to 1.2Vdc OpenCircuit 0.30to 0.60Vdc 0 30to 0.60Vdc OpenCir cuit (2 diodedrops) ( 1 d i o d ed r o p ) ( 1 d i o d ed r o p ) VSC BASE DRIVE WIRING Wlre Colours PINK YELLOW WHITE VIOLET BROWN ORANGE Base Drive Connections t o A L L 2 -P A C K Transistor Modules GREY RED BLUE/BLACK PrNK/BLACK D BLUE wHrrE/oRANGE N Wlre Coloure P E U t l - l B o PINK ts - YELLOW RED : B GREY Y e- BROWN e B wHrTE/ORANGE BLUE : E H IUI VIOLET : B WHITE E L t il t l c = ! ;-ss > =;e=,nE aE=E=; ORANGE B : BLUE/BLACK E : PrNK/BLACK D Baee Drive Connectlons to VSC Control Board Base Drive Connections to ALL 6-PACK Transistor Modules \ 4 page 14 c Checking the Base Drive Circuits To check the bose drive circuits on the control boord, you will require on omrneter copoble of meosuring 500 mA DC, ond o 1 omp, 100 V rectifier diode. (1N4001 or equivolent.) Connect the Positive Bose Current Meosurino circuit to 1/PLU ond 2/PLU os shown belori. There ore six bose drive circuits on the control boord, two connected to eoch of the three sockets, PLU, PLV ond PLW os shown below. C h e c k t h o t t h e m e o s u r e d c u r r e n t c o r r e s o o n d st o the volue shown in the toble for your VSC model. Positive Base Current Power Supply Crrrrent Measrrrcmcnt Negative Base Current Proaadrrre Power Supply Oll, VSC Stopped, Speed : 100% Check Power Supply Olf, VSC Stopped, Speed : 0% 0% Connect the Negotive Bose Current Meosuring circuit to 1/PLU ond 2/PLU os shown below. Check thot the copocitor module(s) ore fully dischorgedby corefullymeosuring between the olus ond minus terminols on eoch module. DO NOT do ony work inside the VSC until this voltoge is below 24 Ydc. 0 Speed : Power Supply Off, VSC Stopped, Speed : 0% Repeot this procedure for the other five bose drive circuits os shown below. To check eoch bose drive circuit, the positive bose current ond the negotive bose current ore m e o s u r e d s e p e r o t e l y .T h i s i s o c h i e v e d b y p l o c i n g the diode in series with the ommeter. Base On, VSC Started, Check Power Supply On, VSC Started, Speed : 100% C h e c k t h o t t h e m e o s u r e d c u r r e n t c o r r e s p o n d st o the volue shown in the toble for your VSC model. Remove the three connectors, PLU, PLV ond PLW from their sockets ond ploce them where they connot touch ony live wires, the control boord or the chossis. Power Supply Ofl, VSC Stopped, Speed : 0% Reoeot this orocedure for the other five bose drive circuits os shown below. If any one of the six base drive circuits fails to meet either the Positive OR negative currents required, then the Control Board MUST be replaced or further damage may result. Positive Base Current Measurement VSC-H3: 44 to 66 mA VSC-H4: 44 to 66 mA VSC-HS: 44 to 66 mA VSC-HIO: E4 to 126 mA VSC-H15: 120 io 180 mA VSC-H17: 120 to 180 mA VSC-H24: 120 to 180 mA VSC-H32: 156 to 234 mA VSC-HJE: 204 to 308 mA VSC-H44: 204 to 306 mA IVSC-G15: E 4 t o lVSCrGlT: 20 to I VSC-G24: 2 0 t o I VSC-G32: 2 0 t o I V S C - G S 8 : 56 to I V S C - G 4 4 : 58 to I V S C - G 6 0 : 204 to +- i - tr====l 0 - o ol -QJ PLU l..1 v l l o o o tr====l o l Ll----fu " 11 I Negative Base Current Measurement t D D o PLv I I O VSC-H3: 31 lo 47 mA VSC-H4: 31 to 47 mA VSC-HS: 31 to 47 mA VSC-H1O: 52 lo 78 mA VSC-Hl3: 64 to 96 mA VSC-H17: 64 to 96 mA VSC-H24: 64 to 96 mA VSC-H32: 76 to 114 mA VSC-H38: 84 to 126 mA VSC-H44: 84 to 126 mA n o o o l t o Ll- - - -5J ,0 /1 \ - PLU r I I , o o n OPLV I I PLIT I o , t J -J+J o l Ll- - - -iJ v O l 52 to 78 I VSC-G1S: IVSC-G17: 64 to 96 I VSC-G24: 64 to 96 I VSC-G52: 64 to 96 V S C G 5 8 : 7 6 to 114 I I VSC-G44: 76 to 114 I VSC-G6O: 84 to 126 tl l E O Ll- - - -iJ J- +' ' -,t+,l, I m A VSC-S5: 61 to 93 mA m A VSC-S4: 61 to 93 mA m A VSC-S5: 6 1 i o 9 3 m A mA mA mA mA 't'' ,t,l 'i,'i, J J lo " L1- - 126 160 180 180 234 234 306 O .r^\ LJ o ol l. . Ll- - - -iJ PLW I I .,^l LJ mA I VSC-S5: 3l to 47 mA mA IVSC-S4: J1 to 47 mA mA I VSC-S5: J1 to 47 mA mA mA mA mA C H E C K IN GT HE CAPACITORMODULES fromthe chassis,checkthatthe relaydrivercircuitis the capacitormodule(s) Beforeremoving procedure properly below. the by following functioning PowerSupplyOff VSCStopped /1- Speed:0% Make sure the small plug-inconnectoris securedin its socketon each of the modules.Check that all wiringto each moduleis properlyconnected. 1 Observethe large relay(s)on the moduleas you apply input powerto the VSC.Approximately secondafterapplicationof inputpowerthe relay(s)shouldenergizeand stayenergizeduntilinput poweris removed.lf the relay(s)do not energizeor if theytake longerthan2 secondsto energize, thenthe moduleis notfunctioningproperlyand mustbe replacedbeforeproceedingany further. Warning- lf the capacitormodule'sdischargecircuithas failed,it may take severalminutesfor the voltageto dischargeto a safe level. lf the relaysenergizeproperly,removepowerfrom the VSC and observethe neon indicatoron the capacitormodule.Timethe periodbetweenturningthe poweroff and the neon going out. lf it is longerthan60 secondsthenthe dischargecircuithasfailedand the modulemustbe replaced. Carefullymeasurebetweenthe plus (+) and minus(-) terminalson the capacitormodulewith a multimeteron 1 000 Vdc range.Wait untilthis voltageis below 24 Ydc beforedoing any work insidethe VSC. \ u Warning- lf there is more than one capacitormodulein the VSC, measurethe voltageon each one to be sure that they have all dischargedbeforedoing any work insidethe VSC. Disconnectthe powersupplyfrom the VSC inputterminals. Locate the wires connectingthe capacitormoduleto the transistormodule(s).Make a note of whereeach wire connectsto the transistormoduleso thatyou can replaceit properly.Disconnect the wiresat the transistormoduleend, leavingthem connectedto the capacitormodule. lf the Capacitormoduleis mountedto the bottomof the chassisremovethe four flangenutsand carefullyliftthe modulefromthe studs.lf the moduleis mountedon the side of the chassis,remove the four screwsfrom the outsideof the chassiswhilesupportingthe moduleon the inside. Removethe capacitormodulefrom the chassis,completewith wiring,and check the following: Inspectthe body of eachcapacitorfor physicaldamagesuchas dents,smallholes,bubbles the top) or any sign of excessiveheat (meltedplastic in the aluminiumcase (particularly oin \ \ 4 Checkthe undersideof the PCB for damagesuch as brokentracks,scorching,excessive h e a t i n gd, r y ( c o l d )s o l d e rj o i n t so r a r c i n g . Checkthe relaycontactsfor signsof arcingpittingor excessiveheating. "push-on"connectorson each wire are firmlyconnectedto the module. Checkthat the lf any physicaldamage is observed,the entirecapacitormodule,includingwiring,should be reolaced. Check CapacitorModuleMultimeter Thereare threedifferentPCB's.Checkthe undersideof the capacitormodule,and locatethe part code.Choosethe appropriateprocedure code and a seven-character number.Thisis a three-letter perform the multimetertestson vour module. belowto \ page 16 AF Y ( 8 0 8 3 1 9 08, 0 8 3 1 1 2 ,8 0 8 3 1 60) ia e Thisis a two or four-capacitor moduleusedin VSC-Gand VSC-Hmodels. (120ohmASWSor '150ohmASWS). Locatethetwoblacktubularpowerresistors Measure across e a c ho n eo n o h msra n g efo r 1 1 0to 1 60ohms. Setthe multimeter to the 30 kohmor 50 kohmrange. Arrangethewiresso thattheycannottoucheachotheror the PCB. Measurebetweenthe + (plus)push-onterminaland the - (minus)push-onterminalon the capacitormodule.The metershouldstartfromzeroohmsand slowlyincreaseto full scalein approximately 20 seconds.Reverse the meterleads.Themetershouldgo fromminusfullscale to zeroand thenincrease to fullscaleagainin approximately 30 seconds. Thechargingtimesand resistances givenabovemayvarydepending uponthe meterused.The important thingis thatthecapacitors should"chargeup" (theresistance increases) and,whenthe leadsare reversed, (theresistance theyshould"discharge and thenre-charge" appearsto go negative, dropto zeroand increase again). lf the modulefailseitherof thesetwotestsit mustbe reolaced. AFZ (8083290,8083212,8083260) This is a six or eight-capacitor moduleused in VSC-Gand VSC-Hmodels, Locatethe four blacktubularpowerresistors(120ohm ASWSor 150 ohm ASWS).Measureacross each one on ohms rangefor 65 to 80 ohms. Set the multimeterto the 30 kohm or 50 kohm range. Arrangethe wiresso that they cannottouch each otheror the PCB. Measurebetweenthe + (plus) push-onterminaland the - (minus)push-onterminalon the capacitormodule.The metershouldstartfrom zeroohms and slowlyincreaseto about20 kohms in approximately 60 seconds.Reversethe meterleads.The metershouldgo from minus20 kohms to zero and then increaseto 20 kohmsagain in approximately 60 seconds. The chargingtimesand resistances given abovemay vary dependingupon the meterused.The importantthing is thatthe capacitorsshould"chargeup" (the resistanceincreases)and, whenthe leads are reversed,they should "dischargeand then re-charge"(the resistanceappearsto go negative,drop to zero and increaseagain). 0 lf the modulefailseitherof thesetwo testsit must be reolaced. 0 page17 AGH (8084090,8084012,8084060,8084061) moduleusedin theVSC-Smodel. Thisis a two,threeor four-capacitor (120ohmASWSor 150ohmASWS). Measure acrossit on Locatethe blacktubularpowerresistor o h m sr a n g ef o r 11 0 to 1 6 0o h ms. Setthe multimeter to the 30 kohmor 50 kohmrange. Arrangethewiresso thattheycannottoucheachotheror the PCB. Measurebetweenthe + (plus)push-onterminaland the - (minus)push-onterminalon the to about20 kohms capacitormodule.Themetershouldstartfromzeroohmsandslowlyincrease go from minus20 kohms meter leads. The meter in approximately Reverse the should 90 seconds. 90 seconds. to zeroand thenincrease to 20 kohmsagainin approximately givenabovemayvarydepending uponthe meterused.The Thechargingtimesand resistances "charge (the resistance increases) and,whenthe up" important is that the capacitors should thing (theresistance appearsto go and then re-charge" leadsare reversed, theyshould"discharge again). negative, dropto zeroand increase lf the modulefailseitherof thesetwotestsit mustbe replaced. CAPACITORMODULE REPLACEMENTPROCEDURE A capacitor moduleconsists of the PCBANDthewireswhichconnectto it.Do notswapthewires lf youhaveobtaineda newmodule,be sureto usethewiressuppliedwiththis between modules. module. fitit backon itsmounting hardware andre-connect To replacetheCapacitor Moduleinthechassis, Replaceall the wiresEXACTLY as they wereoriginally the wiringto the transistor module(s). connected. Checkthatthe relayis firmlypluggedintoits socket. MODULE CHECKALL WIRINGCAREFULLYBEFOREAPPLYINGINPUTPOWERORTRANSISTOR DAMAGEMAYRESULT. \\ a \ a PROCEDURE VSCCONTROLBOARDREPLACEMENT PowerSupplyOff VSCStopped Soeed:0% Removeall the plugs from the old controlboard. Removeall the wiringfrom the terminalstrip. (Make sure you can put it all back.)With a SMALLpair of pliers,carefullysqueezeeach of the plasticstand-offs,gently liftingunder each one at the same time. When all the stand-offshave been released,removethe old controlboard. Locatethe ModelNumberand VoltageRatingof the new controlboardon the lefthandsideabout 150 mm from the front edge of the board (justabovethe large lC). Make sure it is the same as the board you are replacing. lf the model number and voltage rating are blank,you will have to set up the board for your particularVSC model. There will be an instructionsheet and a packet of plug-incomponent carefullyto set the boardup for your networkssuppliedwiththe new board.Followthe instructions VSC model. makingsuretheyare all pokingthroughthe mountPlacethe new controlboardon the stand-offs, ing holes.Gentlypush down aroundeach of the stand-offsso that they all pushthroughand lock down over the board.Be carefulnot to bend any components. Replaceall the plugs intotheirsockets. Re-connectall the wiringto the terminalson the controlboard. M.A K ES U R EN O N EO F T H E M DR O P E R L Y C H E C KT H A TA L LT H EP L U G SH A V EB E E NI N S E R T EP A R ED I S P L A C E D B Y O N EP I N VSCStopped Speed:0% PowerSupplyOn "l LocateVR13, ze(o",a ten-turn trimpot.Referto theVSCControlBoardLayoutfor its location. page18 )<- \ 4/ /') ( range.AdjustVRl3untilthemeterreads0.00 Measure between2lCN4and3/CN4on DC millivolts Vdc+30mVdc.(Note:lf measured at another timethisvoltagemaybe +300 mVdcdue to tempit.) eraturedrift.Thisis nota problem, andthereis no needto re-adjust PowerSupplyOff r VSCStopped Speed:0% Thiscompletes the installation of the newcontrolboard. 't DCCT REPLACEMENT PROCEDURE PowerSupplyOff VSCStopped Speed:0% Locatethesmall1O{urnadjustment trim-pot on the DCCTand notewhichendof thewireor Buss bar is adjacentto it. Removethe wireor Bussbar whichgoesthroughthe DCCT.Removethe DCCTand replaceit withthe newoneso thatthe adjustment trim-potis on the samesideof the conductor as withthe old DCCT. c PowerSupplyOn VSCStopped Speed:0% LocateVR13, a 1Oturntrimpot,"l zeto".Referto page5 for its location. Measure between 2/CN4and3/CN4on DC millivolts range.AdjustVR13untilthemeterreads0.00 Vdc+300 mVdc.(Note:lf measuredat anothertime this voltagemay be +300 mVdc due to temperature drift.Thisis nota problem, and thereis no needto re-adjust it.) PowerSupplyOff VSCStopped Speed:0% Thiscompletes the installation of the newDCCT. PROCEDURE IN P U T R E C T IF IERREPLACEM ENT PowerSupplyOff @ VSCStopped Speed:0% Alsonotetheconnections to Notecarefully the orientation moduleon the heatsink. of the rectifier fromthe moduleand liftit fromthe heatsink. the module.Remove the mounting screw(s) greaseto thebaseof thenewmoduleand placeit on theheatsink Applya lightsmearof heatsink in the sameoosition as theold module. Replace lf thewiresconnectto push-on the mounting and re-connect thewirescarefully. screw(s) terminals, makesuretheyall makea tightconnection. PROCEDURE TRANSISTOR MODULEREPLACEMENT PowerSupplyOff 0 VSCStopped Speed:O% to it. Paycareful Beforeremovingthe old transistormodule,makea noteof all the connections attention to the connection of the BaseDrivewires. module.lf thereare threemodulesremovethe Bussbars Removethe wiresfromthe transistor from the transistors WITHOUT removingthe wiresconnecting the Bussbars to the capacitor modules. Remove and thenremovethe old module(s). the mounting screwsfromthe module(s), greaseto the baseof the newmodule(s). Applya thinsmearof heatsink screws.Turnall the screwsup Placethe newtransistor and insertthe mounting on the heatsink DO NOT tighten thescrewsor thetransistor fingertight,andthenturnthemup a littleat a time. over modulemaycrack. Replacethewiringand checkit carefully. page19 I L SENSORWIRINGREPLACEMENT PROCEDURE r\\ PowerSupplyOff VSCStopped Speed:0% TheSensorWiringconsists of: the Bussvoltagesensingwires- connector PLB - connector thetemperature sensor(LM355) PLT the ELCT- connector PLE lf anyoneof theseitemsneedsreplacing, theSensor Wiringshouldbe replaced. Carefully observe the location, mounting andconnection of theELCT,Temperature Sensorand BussSensing Wires. Remove theELCTby removing thewireswhichpassthroughit andslidingit overtheendof them. Remove theTemperature Sensorby removing thescrewfromtheclampholdingit to the heatsink. Remove the Busssensingwires,notingcarefully wheretheyconnect. Unplugtheconnectors PLE, PLTand PLBfromthe controlboard.Nowthe old SensorWiringmaybe removed. Fitthe newSensorWiringby slidingthe ELCToverthewireswhichpassedthroughtheold ELCT and re-connecting thosewires.PlacetheTemperature Sensoron to the heatsink, withtheflatside facedown.Replace theclampand screwit intoplace.Connect the Busssensingwiresto the DC buss.Plugconnectors PLE,PLTand PLBintotheirsocketson the controlboard. Thiscompletes the replacement of the SensorWiring. ly' 1\, a '$1, 4l/ s\ page20 VSC-H lnternal Wiring Diagram C cE t> 6 E = s g g ifr o & c o Io so t c o N c ir-\,f- o o 8 c 3 I a 3 e I L G s g o 3 N c 6 o I o B 8 t c I o q I t Io Io t G t IG t tr o o c I E n e do d 8 o c 4 G d N F F t o o g8 € c E E E & m C) 9 ET o z x R o o 4 C c 4 F N o o G c c t N L o I5 6 o c o c F F 5 It t N L d F c N o t t t N d 3 8 N d t I o o 4 o N N I 8 I G t 8 G e ua E9 et Ert t 3 I t & c G o g o 4 A F 8I N ! g t E o E8 3E N t E I F g3 c c o a q o F N G R o 6 8 o 8 F c t t d o o I $ : A F N 4 G o & G F E t L D F i t FE o F 5 G t I I HB i* 8 o t d ts t i I t$ g 8 8 c t 5g t c t 8 4 !a o q :: 4 R 5 o c e t g 3 d I !g ngt g I c rF E o N 4 4 g $ FE t F t F t It I t 3... o o N E I 5 N G o (J g L N o 5 6 d o o o I 4 I o = n E 8 o t I t A E E t o F o o EE g e N o o g E I 9 atr frl A o G 5 E t E E o o cc U) I 8 o G d t c o 4 4 4 6 F d t o { N G o o o o o ts d q c P @ o o gE g g g g c o I N 4 c N I G o N t : o ri cJ 5E E F tt G A N F N o c E G G a ( ,< ,c {a IH i 5= ,l I I o I I 9 E I EE o T * T o I F I I E I E8 g ? E I d! ;t;ii:E;t o EE d----rr' Ei H.iiilEii3; =li;ii;::g: page 21 VSC-G Internal Wiring Diagram t), o o o o o c o o 8 I N I I t to ir ;o Its i@ io tz i< iF r9 a F E o o @ o 6 N A c 4 c c o I P 6 c d o ts e I o E c 4 N F o 8 5 d 5 o o d F F c € c oE =F @ =i d: E c o c rrl tr 8 c o d F @ 8 d n 6 8 o oc EC e G o c irq ts A $ c E o I c so o F $-,I I L o e o d a d m F] m E t@,0 6 @ o o o< Q ZE E e c I c d 8 e o @ o frz 6S -l Fl z trl ts d I c; c o I t: q I 8 s E 3 ! :t I ii c e a c c 4 E o I c c o o I 24 o o I o e c c -i t: t 4 F q I ra c N 6 c 6 6 6 * 4 q d 4 o o o e c I o 9 r o o 9 o 9 o o 9 B E I o 9 o I I irtsjif;' irlii page 22 d E dt LE EE g L d t( a; <! lJz o o o 4 N q Io c I I o o o d E z fu N o I d lr--ll' u 6l 8J = d z l a l 4 i z s=t;;ltiir; IE;i !;i:5i f. 14 VSC-S Internal Wiring Diagram C l .6= F".F o - Uz IuI I I I I 8 o o i o o o o E f I I c i rH dEI a2t ' iroO : I - c t 68 g E I I FI I vt 6 x. yt H- J m () m trl rrl v) tr F z A FI o 2 () m r o6 EE i!a tz t< i I 4 t rE IP ;F 8 o q a F d d o z s lq iB ?: o 5 c o d o o o E L N d N o c 4 o E o FE E { o o d 5* g I 8 o a o 4 t o o 4 o o o o o o o A 3e o t t rE :b t I I o o o c o =* ct ci t ;i ,q <@ 5: rl @ r l J /,_--'.-\ - N n * 9 6 I $ o I ,isi;ii gl . I o \ tr r'l = ,-t = E5 zz 5 ! ; ge ; i ;eg: !;! ()< E {J----rr' 6l 6L o page 23 VSC Voltage Selection Procedure "ACXXXX3", "MULTI This procedure is only opplicoble to VoLTAGE" VSC's. These VSC's hove o Port Number "XXXX" where the stonds for ony combinotion of digits. Any VSC with o Port Number thot does not end with 3 con not hove it's input voltoge chonged. You should hove been supplied with o pocket contoining 4 smoll plug in links ond o sheet of self odhesive lobels. Follow the three steps below to select the input voltoge you require. 1. TranslormerTapplngSelectlon - Remove the AC Power Supply from the VSC. Ensure the filter copocitors ore fully dischorged,Loosen the screw in the lid of the VSC ond open the lid. Locote the control tronsformer just obove the Power Input/Motor Output terminols. On the top of the tronsformer is o printed circuit boord with the voltoge selection toppings. A drowing of this boord is shown opposlte, Removethe topping corefully ond reploce it on the pin odjocent to the voltoge you require. Close the lid ond tighten the lid screw. 346V 38OV 415V - ++ov - t-----l ZENER VSCINPUTVOLTAGE SELECNON AHC BOE6112 o o 2. Voltage Selectlon Llnke Locote the Voltoge SelectionLinks on the VSC control boord. Refer to the drowing below for their locotion. From the toble below, select the input voltoge required ond plug in the links os shown. 3. lnput Voltage Label Change Locote the Input Voltoge Lobel below the Input/Output terminols on the VSC chossis. Remove the Input Voltoge Lobels from the pocket supplied. Select the lobel with the NEW Input Voltoge morked on it ond remove it from the bocking poper. Stick it down on top of the OLD Input Voltoge Lobel. o lo " F----t o ol tJ- - - -tJ PLU o t o o o o l o oPLv o o ol lo o Ll- - - -iJ Ll----il o oPLv o VSC Gontrol Board PLT PI,J PI.E PI.B PI.C PLP ol lo ol lo q s al a ql lo o ol lo ol lo L-J L_-.I L_J L__-J J L__J Voltage Selectlon Llnks 50 80 lg LX5 acca. Lrt EIM | | l2lrl1lrl.l7l.l srA FVID REV EN oooffi PLL srB FcE Lur oo @@@@@@@@@ rccE m v^x Ea F M E r e I E T " - fM .,-_ Rrrx CCP s ff I WT m PIl rr---------1 l*ojj-b-E@=lrl2l!l4Fl.l?ltl ldEoodoool o a oo a oa a Z Z aoo Z a e Z o o o offi EF UV OV OT