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C-5 C-5
COMMANDER 300
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CONNECTION OF THE LN-7 TO THE
COMMANDER 300 USING K584 OR
K594 INPUT CABLE ASSEMBLY
(SEE FIGURE C.2.)
1. Shut the welder off.
2. Connect the electrode cable from the LN-7 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.2 shows the electrode connected for
positive polarity. To change polarity, shut the welder
off and reverse the electrode and work cables at the
Commander 300 output terminals.
3. Connect the K584-XX or K594-XX Input Cable
Assembly to the LN-7.
4. Connect the K584-XX or 594-XX input cable
assembly to the 14-pin amphenol on the
Commander 300.
5. Place the IDLER switch in the “HIGH” position.
6. Set the LOCAL/REMOTE switch to “REMOTE” if a
K857 or K857-1 remote control is used. Set the
switch to “LOCAL” if no remote control is used.
Any increase of the high idle engine RPM by changing
the governor setting or overriding the throttle linkage
will cause an increase in the AC auxiliary voltage. If
this voltage goes over 140 volts, wire feeder control cir-
cuits may be damaged. The engine governor setting is
preset at the factory—do not adjust above RPM speci-
fications listed in this manual.
7. Set the VOLTMETER switch to “+” or “-” depend-
ing on the polarity chosen.
8. Set the OUTPUT RANGE switch to “WIRE
WELDING CV.”
9. Set the WELDING TERMINALS switch to
“WELDING TERMINALS REMOTELY CON-
TROLLED.”
10. Adjust wire feed speed at the LN-7.
11. Adjust the ARC CONTROL to the desired level
(“soft” or “crisp”).
NOTE: For remote control, a K857 or K857-1 remote
control is required. Connect it to the 6-pin amphenol.
CAUTION
FIGURE C.2
COMMANDER 300/LN-7 WITH K584 OR K594 INPUT CABLE ASSEMBLY CONNECTION DIAGRAM
–
TO LN-7 INPUT
CABLE PLUG
AMPHENOL
OPTIONAL K857
REMOTE CONTROL
6 PIN
AMPHENOL
ELECTRODE CABLE
TO WORK
14 PIN
K584 OR K594 CONTROL CABLE
TO WIRE FEED UNIT
+