Lincoln Electric SVM153-A service manual ING Terminals Always on

C-9 C-9

ACCESSORIES

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CONNECTION OF THE LN-25 TO THE COMMANDER 500 “ACROSS THE ARC” (SEE FIGURE C.6.)

1.Shut the welder off.

2.Connect the electrode cable from the LN-25 to the “-” terminal of the welder. Connect the work cable to the “+” terminal of the welder.

NOTE: Welding cable must be sized for current and duty cycle of application.

NOTE: Figure C.6 shows the electrode connected for negative polarity. To change polarity, shut the welder off and reverse the electrode and work cables at the Commander 500 output terminals. Reverse the LN-25 polarity switch.

3.Attach the single lead from the LN-25 to the work using the spring clip on the end of the lead. This is only a sense lead – it carries no welding current.

4.Place the IDLER switch in the AUTO position.

CAUTION

If you are using an LN-25 without an internal contactor, the electrode will be HOT when the Commander 300 is started.

5.Set the OUTPUT RANGE switch to WIRE WELD-

ING CV.

6.Set the WELDING TERMINALS switch to WELD-

ING TERMINALS ALWAYS ON.

7.Set the VOLTMETER switch to “+” or “-” depend- ing on the polarity chosen.

8.Adjust wire feed speed at the LN-25.

9.Adjust the ARC CONTROL to the desired level (“soft” or “crisp”).

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FIGURE C.6

COMMANDER 500/LN-25 ACROSS THE ARC CONNECTION DIAGRAM

6 PIN	14 PIN
	AMPHENOL
AMPHENOL

OPTIONAL K444-1

REMOTE CONTROL

LN-25

WIRE FEEDER

WORK CLIP LEAD

TO WORK

ELECTRODE CABLE

TO WORK

COMMANDER 500