NOTE: AN LN-7 CAN ONLY BE USED WITH A FAC-
TORY OR “CE” VERSION OF THE V350-PRO. IF
YOUR LN-7 COMES EQUIPPED WITH A K291 OR
K404 INPUT CABLE, REFER TO THE CONNECTION
OF THE LN-7 USING K867 UNIVERSAL ADAPTER.

1. Remove input power to the V350-PRO.

2. Connect the electrode cable from the K480 control

cable to the “+” terminal of the welder and to the
LN-7 wire feeder. Connect the work cable to the
“-” terminal of the welder.

NOTE: Figure C.5 shows the electrode connected
for positive polarity. To change polarity, shut the
welder off and reverse the electrode and work
cables at the output terminals.

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

3. Connect the input cable from the K480 control

cable to the (115VAC) 14 pin amphenol on the
V350-PRO and the input cable plug on the LN-7.

4. Set the “VOLTMETER” switch to “+” or “-”

depending on the polarity chosen.

5. Set “CONTROL SELECT” to “REMOTE”.

6. Set the “MODE” to the “CV-WIRE” position.

7. Place the “WELD TERMINALS SELECT” in the

“REMOTE” position.

8. Adjust wire feed speed at the LN-7 and adjust the

welding voltage with the optional remote control if
used.

9. Set the “ARC” control at “0” initially and adjust to

suit.

- +

14 PIN

AMPHENOL

6 PIN
AMPHENOL

TO LN-7 INPUT

CABLE PLUG

TO WORK

K480 CONTROL CABLE

OPTIONAL K857

REMOTE CONTROL

ELECTRODE CABLE

TO WIRE FEED UNIT

(115VAC)

AT REAR OF

MACHINE

Figure C.5 V350-PRO/LN-7 with K480 Control Cable Connection Diagram

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