Lincoln Electric SVM123-A Welding Procedure Recommendations, Remote Control of Machine Operation

B-6 OPERATION B-6

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OPERATING STEPS

The following procedures are for using the IDEALARC DC-1000 in the local control mode of operation. For remote control of the machine, see the Remote Control of Machine Operation section.

Before operating the machine, make sure you have all materials needed to complete the job. Be sure you are familiar with, and have taken all possible safety pre- cautions before starting work. It is important that you follow these operating steps each time you use the machine.

1.Turn on the main AC power supply to the machine.

2.Set the CONTROL CIRCUIT POLARITY SWITCH to the appropriate position.

-Set toggle to “Electrode Negative” position if the electrode is connected to the negative (-) output terminal.

-Set toggle to “Electrode Positive” position if the electrode is connected to the positive (+) output terminal.

3.Set the WELDING MODE SWITCH to welding process being used.

-CV Innershield®

-CV Submerged Arc

-VV (CC)

4.Push the ON/OFF PUSH BUTTON to the ON position.

-The red neon light glows.

-The fan starts.

5.Set Output Control Potentiometer to desired volt- age or current.

6.Make the weld (NOTE: Terminal #2 and #4 must be connected together to energize the machine output).

WELDING PROCEDURE

RECOMMENDATIONS

Select Welding Mode Switch position based on type of welding to be done.

1Innershield® Welding/Other Open Arc Processes: Use the CV Innershield® mode.

2.Submerged Arc Welding: Use the CV Submerged Arc mode. If performing high speed welding, switch between the CV Submerged Arc and the CV Innershield® mode and use the mode that produces the best welding results. High Current, Large Puddle Submerged Arc Welding: Use the VV (CC) mode.

3.When the IDEALARC DC-1000 is used for Air/Carbon Arc cutting, use the CV (I) mode and initially set the OUTPUT CONTROL POTEN- TIOMETER to “9”. Based on the size of the car- bon being used, turn the potentiometer to a lower setting as required to obtain the best results. You can use carbon rods up to 5/8” (15.9 mm) in diam- eter. The welder protection circuit protects the machine from extremely high short circuiting puls- es.

SEMI-AUTOMATIC AND AUTOMATIC WIRE FEEDING WITH IDEALARC DC-1000 AND WIRE FEEDERS

NA-3 AUTOMATIC WIRE FEEDER

1.Set the DC-1000 Output Control Switch to Remote.

NOTE: Later model NA-3 automatic wire feeders are capable of cold starts when the NA-3 Mode switch is in the CV or VV (CC) mode position. Some earlier models are capable of cold starting only in the VV (CC) mode position. Cold starting enables you to inch the wire down to the work, automatically stop, and automatically energize the flux hopper valve.

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REMOTE CONTROL OF MACHINE OPERATION

The toggle switch on the control panel labeled “Output Control at DC-1000” - “Output Control Remote” gives the operator the option of controlling the machine out- put from a remote location. If in the Remote position, a wire feeder with remote control capabilities or a remote control device such as a K775, must be con- nected to terminals #75, #76, and #77 to operate. Refer to Accessories Section for wire feeder remote information.

2.Set the DC-1000 welding mode switch for the desired process: CV Submerged Arc, CV Innershield® mode or VV (CC) mode.

3.Set the NA-3 mode Switch Position to either CV or VV (CC) to match the DC-1000 mode selected in step 2.

4.Refer to the NA-3 operators manual for instruc- tions on how to use the NA-3 in conjunction with the DC-1000.

5.Follow the following guidelines for good arc strik- ing detailed below for each welding mode.

IDEALARC DC-1000