Lincoln Electric IDEALARC R3R-500 Manuale Utente

SVM139-AJune 1998Safety Depends on YouLincoln arc welding and cuttingequipment is designed and builtwith safety in mind. However,your overall safety

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NOTESG-2 G-2IDEALARC R3RReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Return to Master T

G-3ELECTRICAL DIAGRAMSR3RWiring Diagram-R3R-300ELECTRICAL SYMBOLS PER E1537LEGENDD5D6D7POCKET AMPTROL SENSING BRIDGEL1 DC OUTPUT FILTERR1R2R3R41514134

G-4ELECTRICAL DIAGRAMSR3RG-4Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Return to Mast

G-5ELECTRICAL DIAGRAMSR3RWiring Diagram - R3R-400 (Code 9874), R3R-500ELECTRICAL SYMBOLS PER E1537LEGENDD5D6D7POCKET AMPTROL SENSING BRIDGEL1 DC OUTPU

G-6ELECTRICAL DIAGRAMSR3RPocket Amptrol Schematic33.2KR38X1141213Q3475R1068.1KR4433.2KR39D933.2KR561W12VDZ1D310050VC468.1KR5115J50VTP133.2KR621W12VDZ2

G-7ELECTRICAL DIAGRAMSR3RSnubber Board Schematic & Layout1 AMP/400 VOLT (UNLESS OTHERWISE SPECIFIED)LM124 (UNLESS OTHERWISE SPECIFIED)COMMON CONNE

G-8ELECTRICAL DIAGRAMSR3RR3R-300 Control PC BoardIDENTIFICATIONPART No.REQÕD.ITEMR80,R81,R82R92,R93,R94R92,R93,R94QU1,QU2,QU3 C1

G-9ELECTRICAL DIAGRAMSR3RR3R-400 Control PC BoardIDENTIFICATIONPART No.REQÕD.ITEMR80,R81,R82R101,R102,R103R92,R93,R94R92,R93,R94QU1,QU2,QU3 R1

G-10ELECTRICAL DIAGRAMSR3RR3R-500 Control PC BoardIDENTIFICATIONPART No.REQÕD.ITEMR80,R81,R82R101,R102,R103R92,R93,R94R92,R93,R94QU1,QU2,QU3 R

Read this entire installation section before youstart installation.SAFETY PRECAUTIONSELECTRIC SHOCK can kill.• Do not touch electrically liveparts or

INPUT CONNECTIONSELECTRIC SHOCK can kill. • Have a qualified electricianinstall and service this equip-ment. • Turn the input power off at thefuse b

Have a qualified electrician connect the input powerleads to the L1, L2, and L3 terminals of the input con-tactor. Follow all national and local elec

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The output (welding) cables are connected to the out-put terminals marked “+” and “-”. See Table A.1 forrecommended cable sizes for the combined leng

NOTESA-10 A-10IDEALARC R3RReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Return to Master

Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOCSection B-1 Section B-1IDEALARC R3RTABLE OF CONTENTS- OPERATION SEC

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GENERAL DESCRIPTIONThe Idealarc R3R is an SCR controlled constant cur-rent DC output power source for welding and cutting.The R3R-300 uses a single ra

Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOCSAFETYi iIDEALARC R3RFOR ENGINEpowered equipment.1.a. Turn the engi

CONTROLS AND SETTINGSAll operator controls and settings are located on thecase front assembly. See Figure B.1 for their loca-tions.FIGURE B.1 – CASE

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WELDING OPERATIONOPERATING STEPSLOCAL CONTROLThe following procedures are for using the IdealarcR3R in the local (“R3R”) control mode of operation.For

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OPTIONS/ACCESSORIESFACTORY INSTALLED OPTIONSPOLARITY SWITCHPermits changing polarity at the machine output ter-minals.METERSAmmeter and Voltmeter.POCK

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SAFETY PRECAUTIONSELECTRIC SHOCK can kill.• Only qualified personnelshould perform this mainte-nance.• Turn the input power OFF atthe disconnect swi

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NOTESD-4 D-4IDEALARC R3RReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Return to Master T

Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOCSection E-1 Section E-1IDEALARC R3RTABLE OF CONTENTS- THEORY OF OPE

Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOCSAFETYii iiIDEALARC R3RARC RAYS can burn.4.a. Use a shield with the

GENERAL DESCRIPTIONThe Idealarc R3R welder is a three-phase transformerrectifier type constant current power source designedfor DC manual welding and

OUTPUT RECTIFICATION,CONTROL, AND FEEDBACKThe three-phase AC output from the main transformersecondary is rectified and controlled through the SCR/dio

THEORY OF OPERATIONE-4 E-4IDEALARC R3RReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Retu

PROTECTIVE DEVICES ANDCIRCUITSTwo thermostats protect the R3R from excessiveoperating temperatures and overload conditions.Excess operating temperatur

SCR OPERATIONA silicon controlled rectifier (SCR) is a three terminaldevice used to control rather large currents to a load.An SCR acts very much like

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ELECTRIC SHOCK can kill.Have an electrician install and servicethis equipment. Turn the machine OFFbefore working on equipment. Do nottouch electric

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Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOCSAFETYiii iiiIDEALARC R3RFOR ELECTRICALLYpowered equipment.8.a. Tur

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Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOCSAFETYiv ivIDEALARC R3RPRÉCAUTIONS DE SÛRETÉPour votre propre prote

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MASTER TABLE OF CONTENTS FOR ALL SECTIONSv vIDEALARC R3RPageSafety...

TROUBLESHOOTING & REPAIRF-26 F-26IDEALARC R3RReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Mast

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TROUBLESHOOTING & REPAIRF-34 F-34IDEALARC R3RReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Mast

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Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOCSection A-1 Section A-1IDEALARC R3RTABLE OF CONTENTS- INSTALLATION

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REASSEMBLY13. For reassembly, carefully place the SCR/ diodeassembly into position on the mounting brackets.14. Replace and tighten the four nuts and

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3. Install the bottom primary coils, one on each of thethree legs of the bottom iron assembly. The coilsmust be in correct position (left, center, r

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REASSEMBLING THE MAINTRANSFORMER INTO THE MACHINENOTE: The following procedure assumes you havecompletely reassembled the transformer coilsas describ

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NOTESF-64 F-64IDEALARC R3RReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Return to Master

ELECTRICAL DIAGRAMSG-1 G-1Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Return to Master