Connection Of Lincoln Electric Wire Feeders - Lincoln Electric RED-D-ARC DX450 Service Manual

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CONNECTION OF LINCOLN ELECTRIC
WIRE FEEDERS
Connection of LN-7 or LN-8 to the DX450
1. Shut the welder off.
2. Connect the LN-7 or LN-8 per instructions on the
appropriate connection diagram in Section F of the
Operatorʼs manual.
3. Set the "WIRE FEEDER VOLTMETER" switch to
either "+" or "-" as required by the electrode being
used.
4. Set the "MODE" switch to the "CV WIRE " position.
5. Set the "ARC CONTROL" knob to "0" initially and
adjust to suit.
6. Set the "WELD TERMINALS" switch to the
"REMOTELY CONTROLLED" position.
7. Set the "IDLE" switch to the "HIGH" position.
Connection of LN-15 to the DX450
1. Shut the welder off.
2. For electrode Positive, connect the electrode cable
to the "+" terminal of the welder and work cable to
the "-" terminal of the welder. For electrode
Negative, connect the electrode cable to the "-" ter-
minal of the welder and work cable to the "+" ter-
minal of the welder.
3. Across The-Arc Model:
• Attach the single lead from the front of the LN-15
to work using the spring clip at the end of the
lead. This is a control lead to supply current to
the wire feeder motor; it does not carry welding
current.
• Set the "WELD TERMINALS" switch to "WELD
TERMINALS ON".
• When the gun trigger is closed, the current sens-
ing circuit will cause the DX450 engine to go to
the high idle speed, the wire will begin to feed
and the welding process started. When welding
is stopped, the engine will revert to low idle
speed after approximately 12 seconds unless
welding is resumed.
INSTALLATION
4. Control Cable Model:
• Connect Control Cable between Engine Welder
and Feeder.
• Set
"REMOTELY CONTROLLED"
• Set the MODE switch to the "CV-WIRE " position.
• Set the "WIRE FEEDER VOLTMETER" switch to
either "+" or "-" as required by the electrode polar-
ity being used.
• Set the "ARC CONTROL" knob to "0" initially and
adjust to suit.
• Set the "IDLE" switch to the "AUTO" position.
• When the gun trigger is closed, the current sens-
ing circuit will cause the DX450 engine to go to
the high idle speed, the wire will begin to feed and
the welding process started. When welding is
stopped, the engine will revert to low idle speed
after approximately 12 seconds unless welding is
resumed.
DX450
the "WELD TERMINALS"
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switch to