Connection Of Lincoln Electric Wire Feeders - Lincoln Electric COMMANDER 400 SVM133-B Service Manual

C-3

CONNECTION OF LINCOLN ELECTRIC WIRE FEEDERS

WARNING
ELECTRIC SHOCK can kill.
• Do not operate with panels open.
• Disconnect NEGATIVE (-) BATTERY
LEAD before servicing.
• Do not touch electrically live parts.
MOVING PARTS can injure.
• Keep guards in place.
• Keep away from moving parts.
• Only qualified personnel should install,
use or service this equipment.
CONNECTION OF THE LN-7 TO THE
COMMANDER 400 USING K867
UNIVERSAL ADAPTER (SEE FIGURE C.1.)
1. Shut the welder off.
2. Connect the electrode cable from the LN-7 to the
"+" terminal of the welder.
cable to the "CV- Wire" terminal of the welder.
NOTE: Welding cable must be sized for current and
duty cycle of application.
NOTE: Figure C.1 shows the electrode connected for
positive polarity. To change polarity, shut the welder
off and reverse the electrode and work cables at the
Commander 400 output terminals.
COMMANDER 400/LN-7 WITH K867 ADAPTER CONNECTION DIAGRAM
14 PIN
AMPHENOL
+
CV-
ELECTRODE CABLE
TO WIRE FEED UNIT
TO WORK
ACCESSORIES
Connect the work
FIGURE C.1
SPARE
K867 UNIVERSAL
GND
ADAPTER PLUG
COMMANDER 400
3. Connect the K867 Universal Adapter to the K291 or
K404 input cable and the 14 pin amphenol of the
Commander 400 as indicated in Figure C.1. Make
the proper connections for local or remote control
according to Figure C.1.
4. Connect the K291 or K404 input cable to the LN-7.
5. Place the IDLER switch in the "HIGH" position.
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
circuits may be damaged. The engine governor set-
ting is preset at the factory — do not adjust above
RPM specifications listed in this manual.
6. Set the LOCAL/REMOTE switch to "REMOTE" if a
K775 remote control is used. Set the switch to
"LOCAL" if no remote control is used.
7. Set the VOLTMETER switch to "+" or "-" depend-
ing on the polarity chosen.
8. Set the RANGE switch to "WIRE WELDING CV."
9. Set the WELDING TERMINALS switch to "WELD-
ING TERMINAL REMOTELY CONTROLLED."
10. Adjust wire feed speed at the LN-7.
}
82
81
INSULATE UNUSED
LEADS INDIVIDUALLY
42
41
31
31
32
32
2
2
4
4
21
21
GND
GREEN
75 75
76
76
77
77
SPLICE LEADS
AND INSULATE
C-3
LN-7
WIRE
FEEDER
K291 OR K404
INPUT CABLE
K775 OPTIONAL
REMOTE CONTROL