Lincoln Electric IDEALARC R3R 600-I Operator'S Manual Download Page 10

B-1

OPERATION

B-1

OPERATION

ELECTRIC SHOCK can kill.

• Do not touch electrically live parts

or electrode with skin or wet cloth-
ing.

• Insulate yourself from work and ground.

• Always wear dry insulating gloves.

FUMES AND GASES can be danger-
ous.

• Keep your head out of fumes.

• Use ventilation or exhaust to 

remove fumes from breathing zone.

WELDING SPARKS can cause fire or
explosion.

• Keep flammable material away.

• Do not weld on containers that

have held combustibles.

ARC RAYS can burn.

• Wear eye, ear and body protection.

STARTING THE MACHINE

The “power on-off” switch on the machine control panel
energizes the three phase line contactor from a small
115 volt pilot transformer. This in turn energizes the
main power transformer.

NOTE:

All PC boards are protected by a moisture

resistant coating. When the welder is operated, this
coating will “bake off” of certain power resistors that
normally operate at high temperatures, emitting some
smoke and odor for a short time. These resistors and
the PC board beneath them may become blackened.
This is a normal occurrence and does not damage the
component or affect the machine performance.

PILOT LIGHT

The while light on the machine control panel indicates
when The line contactor is energized.

NOTE:

If the amber High Temperature Warning Light is

lit, it indicates that one or both of the protective ther-
mostats has opened the line contactor.

OUTPUT CONTROL

The “current control” dial (labeled “

I

”) on the front of the

machine indicates the output current.

On the R3R 375-I, there is only one dial. On the R3R
500-I, and 600-I, there are two dials. The “A” range
controls the current over about 1/2 of the “B” range. A
toggle switch on the control panel allows selection of
the desired range. The output control can be adjusted
while welding.

MACHINE OR REMOTE CURRENT
CONTROL SWITCH

Provisions for remote control are standard on each
power source. A current control switch on the machine
control panel labeled “

“or “

I

“ is provided for

selecting the desired mode of operation, either remote
(

)or at the machine ( 

).

ARC FORCE CONTROL

The arc force control, located on the right side of the
front control panel, is calibrated from one to ten. For
most welding, the dial should be set at approximately
mid-range, 5-6. Adjustments up or down can then be
made depending on the electrode, procedures, and
operator preference. Lower settings will provide less
short circuit current and a softer arc. A setting that is
too low may cause the electrode to stick in the puddle.
Higher settings will provide a higher short circuit cur-
rent and a more forceful arc. Excessive spatter may
result if the control setting is too high. For most TIG
welding applications, adjust this control to minimum for
best operating characteristics.

INTERNATIONAL SYMBOLOGY
REFERENCE

The R3R name plates feature international symbols in
describing the function of the various components.
Below are the symbols used and an explanation of
what each represents.

A. POWER ON-OFF SWITCH

On

Off

Power Input

IDEALARC R3R 600-I

WARNING

Summary of Contents for IDEALARC R3R 600-I

Page 1: ...INSTALL OPERATE OR REPAIR THIS EQUIPMENT WITHOUT READ ING THIS MANUAL AND THE SAFETY PRECAUTIONS CON TAINED THROUGHOUT And most importantly think before you act and be careful For use with machines h...

Page 2: ...R WEARERS SHOULD CONSULT WITH THEIR DOCTOR BEFORE OPERATING Read and understand the following safety highlights For additional safety information it is strongly recommended that you purchase a copy of...

Page 3: ...r for cooling 3 h Never simultaneously touch electrically hot parts of electrode holders connected to two welders because voltage between the two can be the total of the open circuit voltage of both w...

Page 4: ...vent the welding sparks from starting a fire Remember that welding sparks and hot materials from welding can easily go through small cracks and openings to adjacent areas Avoid welding near hydraulic...

Page 5: ...appropri s et non inflammables 4 Des gouttes de laitier en fusion sont mises de l arc de soudage Se prot ger avec des v tements de protection libres de l huile tels que les gants en cuir chemise pais...

Page 6: ...ion below for future reference This information can be found on your machine nameplate Product _________________________________________________________________________________ Model Number __________...

Page 7: ..._______________________________________________________________________________________ Maintenance Section D __________________________________________________________________________________________...

Page 8: ...0V 50 60Hz 380 400V 50 60Hz 440 460V 50 60Hz 11 3 220V 50Hz 74 500A Rated Input Current 103A 600A Output 92A 500A Output 68A 375A Output 220V 50 60Hz Volts Hz DC RATED OUTPUT PHYSICAL DIMENSIONS HEIGH...

Page 9: ...phase input power to the three line terminals on the input contactor and the earth ground lead to the ground stud marked with the symbol Install the reconnect panel for the proper input voltage per t...

Page 10: ...nt control dial labeled I on the front of the machine indicates the output current On the R3R 375 I there is only one dial On the R3R 500 I and 600 I there are two dials The A range controls the curre...

Page 11: ...REMOTE SWITCH Remote Output Current Control F POLARITY SWITCH Factory installed option on domestic models only Electrode Polarity Positive Electrode Polarity Negative Do Not Switch While Welding G RAT...

Page 12: ...e care must be observed when installing or extending the wiring of a remote control The Remote Control cord can be lengthened to any length by splicing four wires to the standard 28 ft 8 5 m cord befo...

Page 13: ...tenance required The probe tip should be kept in condition to provide sharp edges at the ends to assure penetration of heavy oxide coatings on the work piece A blunted tip could result in giving diffe...

Page 14: ...hat may contribute to the machine symptom Step 3 RECOMMENDED COURSE OF ACTION This column provides a course of action for the Possible Cause If you do not understand or are unable to perform the Recom...

Page 15: ...ut contactor coil open 7 Open winding on 115V pilot transformer 8 Power ON OFF switch not closing 9 Lead broken or loose connec tion in 115V starter circuit 10 Thermostats defective High Temperature W...

Page 16: ...de or work lead loose or broken 2 Open transformer primary or secondary circuit 3 Supply line fuse blown 4 Input line grounded causing single phase input 5 Input leads not connected to contactor 6 Lat...

Page 17: ...shooting Section E 1 Input fuse blown Machine is single phased 2 One phase of main transformer windings open 3 Defective power bridge 1 Improper ventilation 2 Loaded beyond rating 3 Fan inoperative 4...

Page 18: ...1 Poor work or electrode cable connection 2 Current too low 3 Welding leads too small 4 Open SCR or diode in power rectifier bridge 5 Control circuit problems 1 Input contactor contacts frozen 1 Curr...

Page 19: ...OF ACTION L Optional remote current control not functioning See Troubleshooting Section C before connecting 1 Current control switch in the wrong position 2 Leads 75 76 and 77 not con nected to corre...

Page 20: ...eplacing check repair are OK one at a time changes OCV each gate lead one at a time does NOT change OCV Codes below 9500 with power off remove leads from Identify gate lead that when Codes above 9500...

Page 21: ...uit Only the green lead can and should be grounded to the machine case When extending the standard remote control make sure the leads are the same and the splice is waterproof Be very careful not to g...

Page 22: ...her step 3 or step 4 fails replace the switch I REMOTE CONTROL CHECK For codes above 9500 the remote control Amphenol pin assignments are pin C 75 pin B 76 and pin A 77 Disconnect the remote field con...

Page 23: ...tep b and a much higher resistance in Step c K POWER SILICON CONTROLLED REC TIFIER TEST The SCR must be mounted in the heat sink when making this test a Connect the ohmmeter set to the X10 scale leads...

Page 24: ...5 6 66V BOTTOM PRIMARY TOP PRIMARY T1 X1 X2 X3 SEC SEC SEC 16 17 18 ARE PRESENT ON 380 500 OR 460 575 MACHINES ONLY THERE IS NO 10 11 12 CONNECTION ON 380 A CHOKE THERMOSTAT SECONDARY THERMOSTAT 233 2...

Page 25: ...F 2 DIMENSION PRINT IDEALARC R3R 600 I F 2 R3R 600 I K817 or K817R K841 not shown Part No Type A B C D F G H M12244 7 R3R 32 00 15 39 3092 1 44 30 02 11 33 07 06 94 M12244 7 7 7 78...

Page 26: ...electrically live parts or electrode with skin or wet clothing Insulate yourself from work and ground No toque las partes o los electrodos bajo carga con la piel o ropa moja da Aislese del trabajo y...

Page 27: ...e Be und Entl ftung des Arbeitsplatzes Mantenha seu rosto da fuma a Use ventila o e exhaust o para remover fumo da zona respirat ria Turn power off before servicing Desconectar el cable de ali mentaci...

Page 28: ...and Service through Subsidiaries and Distributors Worldwide Cleveland Ohio 44117 1199 U S A TEL 216 481 8100 FAX 216 486 1751 WEB SITE www lincolnelectric com World s Leader in Welding and Cutting Pr...

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